How to solder using rosin and tin

How to solder correctly with a soldering iron and rosin

Any novice specialist involved in the maintenance and repair of radio electronics is faced with the need to buy a device designed for high-quality work on connecting damaged sections of the microcircuit. Let's try to figure out how to solder correctly with a soldering iron with rosin, what a novice specialist and a master with a wealth of knowledge needs to know.

Soldering using rosin

Basic principles and rules for soldering work

In order to understand and find out how to properly use a soldering iron for soldering wires, you need to have a minimum set of tools:

• Soldering iron, preferably electric from the main power source of 220 volts.
• Tin or other interchangeable solders.
• Rosin.

The power of the soldering iron should be no more than 40 watts, the standard power supply is 220 volts. For domestic use, this power of the device is quite enough. Ready-made solder is needed for high-quality connection of parts and assemblies.

  As the main components of solder we use tin with lead components, as well as traditional rosin. The retail network sells ready-made tubes with a compound inside or special wire.

The latter option is recognized as the most effective and best in many performance parameters.

Characteristics of solder and rosin

Next, we’ll figure out how to properly solder wires with a soldering iron with rosin and tin when choosing the required brand of solder. In this case, the PIC marking, the so-called tin-lead solder, is suitable. The marking contains digital values, so 60 is the percentage of tin, and 40% is the lead content.

  You can find solders on the market that have a high lead content. This material has the best characteristics that ensure high quality work when connecting parts.

  The composition differs in color, the melting temperature will be an order of magnitude higher than with conventional series and PIC markings, but the quality of the processing site will also be high.

Tin-lead solder

Rosin plays an important role in this process, which allows you to solve not only the problem of how to properly solder wires with a soldering iron, but also helps to achieve the necessary strength of the connection. The main purpose of rosin is to remove oxides from processed soldered parts. The use of rosin is mandatory, since the copper tip, when heated, forms a specific carbon deposit that interferes with the quality of ensuring the strength of the connection of parts on the microcircuit.

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How to use rosin when soldering - Metalworker's Handbook

Knowing how to solder with a soldering iron is very useful in everyday life. There are a number of techniques on how to do this, but it is best to master the theoretical part before starting the work process.

Peculiarities

There are many ways to learn how to solder with a soldering iron from scratch. To do this, you will need a soldering iron - a device designed to heat parts or flux during tinning and soldering.

The tool is brought to the area where the parts are soldered, touching them with the so-called tip. The tip is the working part of the tool, which is heated using a blowtorch or electricity.

Rosin is most often used for soldering, but to work with this material you need to know how to properly solder with a soldering iron with rosin.

Before soldering, you need to perform a number of actions:

1. First of all, remove any dirt from the surface.
   To do this, use sandpaper. Degrease the desired area with gasoline or acetone.
2. After warming up the instrument, its end is covered with rosin. The next step is tinning. The solder must be ground using a wooden block. After the procedure, the surface acquires a silver tint.
3. Next, the solder is heated until the optimum temperature is reached.

   The tip heating rate should be 20–40 degrees higher than the soldering temperature.

4. The brush is moistened with alcohol, then excess rosin is removed with it.
5. Soldering must be done at one time; if the number of procedures is increased, this will negatively affect the quality of the work performed. The solder will turn gray (as oxidation occurs). When touched with a sting, the parts are fixed to create a strong connection without microcracks.
6. For better soldering, flux is used, a special liquid that helps clean the surface before soldering. It is the substance with which you can remove oxides from the solder surface. Thanks to its use, liquid solder spreads better, in an even layer. Do not overheat the soldering iron, as this will cause the flux to burn and become charred.

If you're working with a metal like aluminum, it's worth knowing its characteristics. The melting point of aluminum is 660.1 degrees.

A small amount is applied to the joint area and then leveled. The contact point must be covered.

The working process

A kind of connector between two components is called soldering. Its main role is to create a sufficiently strong connection.

Solder is a metal alloy that can be divided into two large groups. Soft solders have a melting point of up to 300 degrees; this type is used in electronics.

The next type of solder is the hard group, in which the melting point exceeds 300 degrees. This type is actively used for reliable joining of metals.

The soldering sequence is as follows:

• the surface is first cleaned of corrosion or any other type of contamination;
• the next step is complete cleansing until it acquires its characteristic shine. Traces of oxides should not be visible;
• For coating, flux is used, which removes oxide residues and minimizes the appearance of surface oxidation. The best choice in this case is flux paste. Liquid or solid fluxes are not suitable;
• the master carries out tinning. Solder is applied to a certain area of ​​the surface in molten form, after which it spreads evenly;
• using twisting and compression with tweezers or a clamp, the main parts are connected;
• The flux application procedure is repeated. This is necessary to minimize the risk of solder oxidation under high temperature;
• Solder is applied along with heating;
• It is also important to note that when using a tool with a tinned tip, it must be cleaned using inactive flux. The soldering iron must be stored with a fluxed tip. This affects the quality of further work.

Cleaning

The procedure for cleaning the soldering iron tip is carried out by rubbing it against a soft porous or fibrous lining. The best option would be to choose natural felt. An alternative would be to use basalt cardboard. Two-stage cleaning is considered high-quality. The first step concerns the use of a sponge-tangle made of metal tape.

The second stage of cleaning involves the use of felt.

At the end the instrument is turned off. The stage when the master inserts a hot sting into solid rosin is considered important. You need to wait until it stops blowing bubbles. After this, the master removes the sting, holding it with the end down. This way, the excess rosin will drain off. Once the instrument has cooled completely, it can be stored.

Pipe soldering

Based on the technological features of this procedure, the masters use the following stages of action:

• First of all, you need to prepare the tool. We are talking about heating it to the optimal temperature. The temperature in the room is also important. After all, if the weather is hot, then the time is reduced. During the cold season, for example, the duration of soldering increases.
• The next stage concerns the preparation of the pipe. Use a pipe cutter to cut the pipe at a right angle. You can replace the tool with special scissors. The cut area should be cleaned and then degreased.
• Parts must be dry.
• The next step concerns soldering. The elements are thus connected securely to each other. After completing the procedure, you must wait until the parts cool down.

You can perform the procedure yourself. If you are unable to complete the procedure, then it is best to use the services of a specialist. It is best to solder the first element first. It is necessary to cool and cut the part in order to check the quality of workmanship.

If there are errors, this will be noticeable. During installation work or during pipeline repairs, this skill will come in handy.

Soldering wires

The most common question concerns how to solder correctly with a soldering iron. First, you need to free the ends of the wires from the insulation using a knife or wire cutters. The parameters of the cores must correspond to the dimensions of the parts. It is best when the soldering iron is not too large, then adjacent areas will not be damaged in the process. A small soldering iron, by comparison, achieves unreliable, low-quality results. It is quite difficult to warm up parts with it.

If you are soldering stranded wire, then you need to twist it, then tin it. The procedure is as follows. The wire is dipped into a bath of rosin. The craftsman runs a drop of solder across the surface of the copper wires. The coating should be even, covering all sides. Excess rosin is removed.

Solder is classified as a weak alloy. It is characterized by low reliability, because it is damaged under the influence of small loads. In the process, rosin is applied to the wires, followed by solder. The heating time for the twist is 2–3 seconds.

If we are talking about single-core wires, then they are first cleaned until they acquire a shine, then dipped in rosin. The connection takes approximately 3–5 seconds. Then a large-diameter heat-shrinkable tube is placed over the exposed wire. Following this procedure will ensure a high level of insulation.

Experts recommend using an ordinary lighter when cooling quickly.

Soldering

When asking a question about how to properly solder microchips with a soldering iron, it is better to entrust such work to a specialist. After all, the work itself is quite scrupulous and requires experience and a certain skill.

For proper soldering, it is necessary to take time to prepare the parts needed in the tooling process. Familiarize yourself with the theoretical aspect, and then consolidate your knowledge in practice.

It is necessary to remember to protect the layer of molten solder with flux. The operation you perform also matters. Based on this, you need to select a device of appropriate power and with a suitable tip shape.

By following the basic rules for using the device and the recommendations of specialists, you will be able to connect the parts in the correct way, thanks to which the soldering will last a really long time. Similar: Electrical wiring in the kitchen: installation rules and diagram

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How to properly solder with a soldering iron using rosin

instrument.guru > Welding > How to properly solder with a soldering iron using rosin

Almost every man, be it an ardent fan of delving into radio equipment and electrical appliances or a simple owner who is faced with a situation in which the process of joining metals and wires is required, sooner or later will be forced to use a soldering iron, in this case you can to cope with the task yourself .

• Devices and tools required for the soldering process
• Recommendations for competent work with a soldering iron using rosin
• Correctly soldering with a soldering iron with rosin: general recommendations

Devices and tools required for the soldering process

In everyday life, when it is necessary to repair something basic, special experience and expensive units and tools for soldering are not required. The main ones are the following devices and tools:

1. Soldering iron. The main criteria when choosing it are the size, which must correspond to what you are going to solder, otherwise there is a risk of damage to adjacent circuit elements or poor-quality soldering of wires and power (it is advisable to purchase a pair of soldering irons, one for 25 watts for soldering microcircuits, the second for 40-watts). 60 watts in order to solder wider parts of parts).
2. Soldering iron stand. When working with a soldering iron for a long time, you have to frequently unplug it to avoid overheating, then wait until it warms up again. Due to the fact that the soldering device heats up to 300 degrees, you simply cannot do without a stand for it.
3. Rosin and solder. Rosin is an amorphous substance obtained from the resin of coniferous trees, very fragile under mechanical shock. What is rosin needed for? When soldering, it is used to degrease the surface and remove oxide films. Solder is an alloy of two metals - lead and tin for soldering.

Preparing tools and materials for soldering

Soldering is the process of joining parts by introducing molten metal of a lower temperature into the area of ​​their contact. Before you start soldering, you need to carefully prepare for work:

1. Preparing the soldering iron for subsequent use. The main task of all manipulations is to cover the working area of ​​the soldering iron tip with a thin layer of solder. Method 1: when the soldering iron is first heated, its tip must be cleaned, thereby protecting it from oxidation and wear. Having warmed it up to operating temperature, you can touch the sting to the rosin, melting the solder on it, and then rub it on a wooden surface.

   Method 2: wipe the heated tip of the soldering iron with material treated with soldering acid, melt the solder and distribute it over the tip with a piece of solid ammonia using the rubbing method.

2. Preparing parts for soldering.
3. Regardless of the type of soldering (low-temperature or high-temperature), the surfaces of the parts must be thoroughly cleaned of oily and greasy contaminants and degreased using rosin or solvents. If there is rust, it must also be removed by any mechanical means. If you need to solder the wires, it is better to twist them together first, since tin is a rather soft metal that may not withstand even the slightest load.

Recommendations for competent work with a soldering iron using rosin

Rosin easily dissolves in organic compounds such as alcohol, acetone and others. When heated to 150 degrees, it is capable of breaking down chemical elements such as tin, lead, and copper.

Rosin is used in radio and electrical repair work as an antioxidant component for soldering. Its proper use will significantly reduce the spreading and surface tension of the solder, destroy the oxide film and prevent the formation of a new one.

Before you start soldering the necessary elements, you need to clean and then tin the contacts. To do this, place a piece of solid rosin on the part of the surface that will be soldered and press it with a soldering iron heated to the required temperature.

Correctly soldering with a soldering iron with rosin: general recommendations

If the task is to solder a microcircuit, then you need to dip the soldering iron tip in rosin and coat the twisted wires with it, which will ensure free flow of tin to the soldering site.

If the solder was not used in sufficient quantity and a part of the twist or wire is visible in some places, it is necessary to repeat the previous step.

Next, having placed the solder at the soldering site, it is recommended to run the soldering iron tip over it, as a result of which it will melt. If the material is processed poorly, then it is possible that the solder will not adhere to the surface .

Of course, it is possible to solder without using rosin, but the quality of the soldering joint and the aesthetic appearance of the product will be lost.

If rosin is not available in everyday use, soldering acid, electrolyte from an old battery, pine resin dissolved in acetic acid, or acetylsalicylic acid may be useful as a replacement.

And yet, the best solution is not only to use rosin when soldering, but also to use it in excess for more reliable bonding. Until the composition hardens, do not move parts of the solder.

With effective tinning, soldering will occur almost instantly ; you just have to wait until the solder has completely cooled. On many Internet sites you can find videos with simple lessons on how to use a soldering iron and learn how to solder. If you follow the detailed instructions, then the process itself is not particularly difficult; to achieve a positive result, you just need to do everything clearly and consistently .

When thinking about how to properly use a soldering iron using rosin, do not forget about the need to carefully prepare tools and parts for the soldering process. When creating a permanent connection, the solder layer must be protected with rosin. For each individual soldering case, a soldering iron of the appropriate size and power may be suitable. When parts are connected correctly, soldering becomes reliable and durable.

Source: https://instrument.guru/svarochnye/kak-pravilno-payat-payalnikom-s-primeneniem-kanifoli.html

Why use rosin for soldering?

When high-quality and fast soldering is required, [it is advisable to use rosin].

Anyone who loved to solder at home as a child or attended amateur radio clubs definitely had these amber pieces in their arsenal, but rarely thought about why rosin was needed.

Let's look at its useful properties when soldering and what can replace it.

Technology and terminology

The starting material for the production of rosin is ordinary pine resin, which, in addition to rosin, contains volatile turpentine compounds.

The manufacturing process involves purifying the rosin by evaporating these compounds.

For those who have never used a soldering iron, but are planning to learn how to solder, it will be useful to know some technical terms.

Soldering is the process of connecting two radio components together through heating.

The soldering tool is a soldering iron, usually powered by 220 mains power with a rated power of 40W.

The soldering process is carried out using a soldering iron tip due to the fact that solder heated to a high temperature grabs two parts together, filling the space between them.

GOST defines solder as a metal or an alloy of several metals. According to GOST, 26 categories of solder are defined depending on the element used.

The most popular alloy is lead and tin in various proportions. Price also plays an important role in popularity.

Solders always have a lower melting point than the parts to be joined.

According to GOST, according to their temperature properties, solders are divided into soft ones, which melt at temperatures up to 450 degrees Celsius (with subcategories of particularly low-melting ones - up to 145 ° C and hard ones with a melting point of 450 degrees Celsius and above (categories of medium-melting - up to 1100 ° C, high-melting - from 1100 to 1850ºС and refractory – over 1850).

GOST divides solders into fluxing and self-fluxing; they have different melting points.

Most often, solders look like a silver-colored metal tube or like a hollow cylinder filled with rosin, which acts as a flux.

Flux is a composition (liquid or solid) that promotes better contact of parts being soldered and prevents metal oxidation on working surfaces.

Requirements for fluxes are also determined by GOST; they have different prices.

IMPORTANT TO KNOW: Argon welding (argon arc) - technology and equipment

For a beginner, solder with rosin will be more convenient, while experienced craftsmen like to solder with ordinary solder, choosing a flux depending on the soldering conditions and the material of the parts.

If simple soldering of copper parts will be carried out, then you can use rosin; its low price makes it a convenient consumable.

When more complex soldering is carried out, instead of one universal one, a flux is used that is suitable for all parts.

Technical requirements for the use of rosin for soldering, its composition, melting temperature and characteristics are determined by GOST 19113-84.

The main material for rosin is pine resin - the raw material for many types of industry and an auxiliary element for soldering.

It is a composition in the form of a mixture of abietic resin acid with several other isomers of resin acids.

Lacking a crystalline structure, it is an amorphous, glass-like, brittle substance with a wide range of colors from pale yellow to dark brown.

In composition, it is a glassy, ​​transparent mass with inclusions of air bubbles, with minor inclusions of mechanical impurities, a mass fraction of water not exceeding 0.2%.

It is absolutely insoluble in water, but easily dissolves under the influence of alcohol and acetone. Rosin softening occurs at a temperature not lower than 66-69ºС, depending on the variety.

Mastering soldering with rosin

The composition of rosin for improving soldering is manufactured and sold both in pure solid form and in the form of liquid or viscous fluxes, its price varies.

The most common is alcohol-rosin flux (brand “SKF”), which according to GOST consists of a 40% rosin solution and pure ethyl alcohol.

It is this flux with rosin that is a dielectric, unlike ammonium chloride flux. In addition to the technical properties of this flux, the low price is important.

Instead of liquid flux, you can use solid rosin; it is also available in stores for radio amateurs.

The price of one kilogram of solid rosin ranges from 400 to 500 rubles. When rosin is purchased, a soldering iron and regular solder (tin) are available, we get to work.

If you have not had to solder before, then first read the video instructions. The technology of soldering using rosin is presented in the video.

IMPORTANT TO KNOW: Features of copper argon welding

To solder firmly and correctly, follow the following sequence.

Soldering iron preparation - tinning. It involves stripping the soldering iron tip with files and then coating it with a thin layer of solder.

Warm up the tip and put a small amount of rosin on it, then immediately connect it to the solder. As you can see in the video, the solder does not stick to the tip, and we need to ensure that it is evenly covered with solder.

Therefore, we apply the sting to a natural board (pine is best, but you can use any) for a short time. We repeat the sequence.

After several cycles we will achieve the desired result. Preparation of surfaces to be soldered.

Let's tin the wire, to do this we will clear it of the insulating layer, but only as much space as we need for soldering.

If a larger surface of the wire is exposed than is required for soldering, then this, of course, is convenient for a beginner; this is precisely the reason why short circuits and fires occur in the circuit.

Typically, pure copper wire can be tinned after one rosin-solder cycle.

Let's dip the wire in rosin, apply a hot tip to the top of the bare surface and lift the wire.

The rosin mass will smoke and flow around the wire, after which all we have to do is cover the soldering area with tin. To do this, pick up tin from the solder with a hot tip and transfer it to the wire.

If the wire turns from copper-yellow to silver, then it is considered correctly tinned. When you need to connect two wires by soldering, both need to be tinned in the same way.

Let's look at how to prepare a copper part for soldering to which you need to solder a wire. Dip the heated tip into the rosin and immediately into the solder.

Now we have a rosin-tin mixture at the tip of the sting. It needs to be thoroughly rubbed over the surface of the part at the soldering site.

Tinning is done correctly if the place where soldering will be done turns silver.

Instead of solid rosin, you can use any flux.

In order to properly solder the tinned parts, we connect them together, pick up tin with a heated soldering iron (it can be replaced with any other clean solder), and cover the joint of the parts with a hot compound.

If it was not possible to enrich the joint of the parts immediately, then you can touch the soldering iron with tin again.

Now avoid moving the parts under the hot solder and allow the soldering to cool completely. The parts are coated in tin using rosin.

IMPORTANT TO KNOW: Tips for welding aluminum with electrodes

If you notice that the enveloping is not going well, then add as much rosin as required, but in small portions.

Let's look at how to properly unsolder parts. We heat up the tip and apply it to the soldering area. This will melt the solder and the parts will easily separate from each other.

Now dip the brush into the solvent and remove the remaining flux and rosin from the surface of the parts.

Secrets of soldering with rosin

There is no difficulty in soldering work, but, as in any type of work, it is necessary to master the basics and carry out a series of training solderings.

If you have never worked with a soldering iron before, try soldering copper wires using ordinary solder and rosin.

Free access to parts from all sides, the ability to combine them quite tightly are good conditions for developing soldering skills, and using rosin separately will teach you how to dose the required amount.

Please note the following points:

• The cleanliness of contacts for tinning before soldering must be ensured properly, this is the price of strong soldering. After cleaning the surfaces to be joined with a knife, go over them with sandpaper. The goal is to make the metal surfaces of parts brighter, and therefore free of copper oxidizing agents;
• Prepare as much surface as you need for soldering with rosin. If the first time you managed to tin a larger surface than required, redo it by taking new wires;
• If there is not enough solder or flux, leave the soldering to harden. When you try to rub hot compound over a surface, you break the solder joint, which will cause cracks. It is better to wait until it cools completely and solder the remaining surfaces using a new composition.

We looked at how to work with a soldering iron correctly, for what you can and should use fluxes and rosin, highlighted several points that will help you learn to solder better, and showed video instructions for working with a soldering iron.

Now you can easily master soldering with rosin at home.

Source: https://rezhemmetall.ru/kanifol-dlya-pajki.html

1

How to solder correctly with a soldering iron and rosin

In order to get started, you need to purchase the following minimal equipment:

• electric soldering iron;
• tin or solder;
• rosin.

Regarding the power of the soldering iron, a regular 40 W (voltage 220V) will do. For home use, such a soldering iron is quite sufficient. Now solder - you will need it in order to connect the components and parts. Solder can be different: rosin, an alloy of tin and lead. It is sold in the form of tubes (with flux inside) or in the form of wire. The last option is better.

As for the choice of solder, in terms of hardness and melting point, a flux labeled PIC (tin-lead solder) is suitable; 60 is the percentage of tin, and 40 (this figure is not indicated, we calculate it ourselves) is the amount of lead in this solder. It's good if you can find solder with a high lead content (it differs in color, it will be darker). The melting point of such solder is an order of magnitude higher, which means increased soldering strength.

And finally, about fluxes - this substance is intended to remove oxides from parts being soldered. This cannot be avoided, because the tip of the soldering iron is copper and will oxidize when heated, so you will have to periodically remove carbon deposits. If this is not done, the solder will not attach to the parts, but will simply spread. Soldering with such a contaminated tip will not work.

The simplest and most reliable flux is rosin. The material is natural, because rosin is made from pine resin. This is an amber-colored liquid with a pleasant pine aroma. Sold in pieces in pure form, in the form of viscous or liquid flux. For beginners, both pure rosin and alcohol-rosin flux are suitable; this is a universal material consisting of a solution of rosin and pure ethyl alcohol.

2

How to solder with rosin

Everything you need has been purchased and prepared; you need to clean the soldering iron tip (and if it is not flattened, do it yourself). The thinner the tip, the more delicate soldering work can be done. The angle of the tip should be dihedral 30-45 degrees.

How to solder with rosin:

• Open the window; you need to work in a well-ventilated area.
• Turn on the soldering iron, wait until the unpleasant smell and characteristic smoke go away - the tip is calcined and ready for use.
• You can turn off the soldering iron for now to clean the tip.
• Turn on the electrical appliance again and wait for the tip to heat up.
• You can lightly tin the part clamps (touch the rosin with a hot tip several times so that the tip is covered with solder) to ensure high-quality adhesion of the parts being soldered.
• Take the rosin, touch the tip of the tip to the rosin to pick up a little solder. Wait until it warms up. It will take literally a few minutes.
• Place the sting on the pine board for a few seconds, then repeat your actions again.
• After a few repetitions you will succeed.
• For a beginner, when mastering the basics of soldering, it is more convenient to work so that the tip is exposed; this is the most basic mistake when working. Due to the large exposed tip, the circuit often catches fire.
• When working with copper wire, one tinning is enough, that is, you need to warm up the tip, touch the rosin, apply the tip to the working surface, lift the wire, lower it into the rosin, apply the hot tip to the surface and lift the wire.
• As a result of these actions, the rosin will begin to smoke, and the wire will flow around the rosin mass. After this, you will need to cover the soldering with tin and transfer it to the wire.
• If, as a result of the actions taken, the wire changes color from yellow to silver, this means that everything was done correctly. To solder 2 wires, you need to tin both.

Source: https://sovetclub.ru/kak-pravilno-payat-payalnikom-s-kanifolyu

How to solder stainless steel to stainless steel? How to solder with a soldering iron with rosin and tin

How to solder stainless steel to stainless steel using tin and rosin? This is a very labor-intensive process, for which you need to know all the subtleties and tricks of soldering work. If you follow the instructions discussed in this article, you will be able to make a reliable connection of stainless steel products.

Process Features

For work with food containers, you can only use lead-free solders (for example, tin and alloys based on it). Soldering stainless steel products is a complex process that requires some knowledge and skills to perform.

The best solder for working with the mentioned metal is tin. Thanks to this material, it will be possible to make a high-quality connection. However, tin is more often used for soldering when small parts need to be attached or small cracks need to be repaired.

Solder is sold in coils or in the form of bars 2–4 mm thick.

In industry, soldering using tin is rarely used. And at home, to repair household items (for example, a stainless steel kettle), they use a soldering iron or a gas burner, as well as the mentioned solder. In this case, the main thing is to prepare the necessary consumables (consumables). But we should not forget: during soldering work, hot objects and toxic substances will be used, so you must follow safety rules.

Why do you need flux?

This substance will ensure uniform spreading of solder over the surface of the soldering zone and create conditions for high-quality adhesion of the material to the metal coating. Fluxes are currently classified according to the degree of impact on the following varieties:

1. Inactive (neutral), which do not contain acids. In addition, they almost do not conduct electricity.
2. Active (acid) fluxes.
3. Protective (anti-corrosion), the purpose of which is to protect the soldering zone of the finished joint from corrosion and destruction.

If the question arises why flux is needed for soldering, then the answer can be this: this substance is necessary to comply with the technology, since it will definitely be needed during soldering work. However, the method of application of the composition depends on its initial state:

• if the flux is in a solid state, the soldering iron tip must first be dipped into the reagent, and then grab a little solder with it;
• the finished liquid mixture will have to be applied to the soldering area using a brush;
• The surface should be treated with a paste-like substance using a regular stick.

In addition, flux is sometimes sold in special tubes.

Necessary equipment

Before you begin repairing the product, you need to prepare the following tools and materials:

• A simple soldering iron (minimum power - 100 W) or a propane torch.
• Organic solvent (for example, white spirit or acetone).
• Tin solder.
• Rosin or phosphoric acid.
• Steel rope.
• Metal brush, file or sandpaper.
• Clean cloth for wiping.

However, before soldering stainless steel to stainless steel and, accordingly, repairing the part, you should purchase protective equipment: polyurethane gloves, goggles and a respirator.

In addition, to connect large products, a more powerful soldering iron may be required, the tip of which must be fireproof: this will not only increase the service life, but also improve the technical parameters of the tool.

Regarding solder, it should also be said that tin bars are suitable for soldering food utensils or other containers, since they contain fewer harmful impurities.

How to solder with a soldering iron with rosin and tin: technology

When the materials and tools are prepared, you can begin this operation. To solder stainless steel at home, you need to follow these step-by-step instructions:

1. Use sandpaper or a brush to remove oxide film and other contaminants from the metal surface.
2. Degrease the part to be repaired with solvent.
3. Apply flux - rosin or soldering acid - to the surface to be treated.
   This step does not need to be performed if a combined tin solder is used, which already contains the mentioned substance. applied immediately before soldering, since a film forms on the surface of the stainless steel after about 10 seconds.
4. Heat the soldering area on which the flux is applied with a tinned soldering iron tip.
5. Add solder if necessary, but most likely you won’t be able to cover the entire surface with tin the first time.
6. Reapply flux and heat it again with a soldering iron. Repeat this process until the surface of the metal is covered with an even layer of tin. The main thing is that the solder melts not from the tip of the soldering iron, but from the heat stored in the part. In addition, to make the soldering of stainless steel with tin better, you need to add rosin to the joints, which will remove oxides from the solder.
7. Wash the product from flux residues. To complete this step, you need to prepare a solution consisting of water and detergent and buy metal scrapers. The remains of rosin, according to the masters, can be easily cleaned with cold water, since the substance becomes brittle in it.

Soldering is considered high quality if the result is a uniform surface. But in any case, at the end the coating must be sanded with sandpaper or a file.

How to join stainless steel parts: optimal technique

First you need to equip your workplace. The table must be steel or have a non-flammable surface. The main thing is that it is even. In addition, you need to make high-quality exhaust ventilation. In turn, in order to solder several products into one at home, you need to cover their parts with tin and fix them together. The next step is to heat the parts at the same time so that the hot solder bonds. You will probably have to add tin to the soldering area by placing it on the soldering iron tip.

After this, you need to warm up the entire surface and, if the solder is applied well, you need to place the parts on a flat surface. A stainless steel product assembled from two or more parts must not be moved until the joints have completely hardened. It is better to secure the soldered parts with fastening devices (for example, clamps or a vice).

Soldering with a gas torch: repairing a kettle

First, you need to thoroughly clean the soldering area with sandpaper and remove scale near the damaged area. To solder a stainless steel kettle with a gas burner, you need to follow these instructions:

1. Heat the connection with a flame, smoothly moving the device. The heating will be sufficient when the solder begins to melt upon touching the metal.
2. Apply flux (rosin or phosphoric acid) to the soldering area.
3. Apply tin to the damaged area, while continuing to heat the area with the burner so that the substance melts and fills the entire defective area.
4. Sand the seam with a metal brush.
5. Wipe the sealed area with alcohol to clean its surface from scale and oxides.

During soldering work, you need to monitor the oxygen level. To determine this parameter, you need to look at the flame, the normal shade of which is blue. In an oversaturated composition, the color will be pale, which indicates an excess of oxygen. If you ignore this requirement, there is a high probability that the stainless steel will begin to oxidize.

Advantages of soldering stainless steel with tin

The advantages of this method include the following properties:

• consumables are inexpensive;
• no lengthy preparation of the part is required;
• simple soldering work for small-sized products;
• tin solder reduces the fluidity of stainless steel during soldering;
• good connection quality.

Flaws

In addition to the undeniable advantages, soldering stainless steel with tin solder also has some disadvantages:

• difficulty in sealing seams on inclined and vertical planes caused by the high fluidity of tin;
• insufficient strength of permanent connections for large structures;
• reduction in the permissible temperature range of soldered parts due to the fact that the tin will simply melt if the material is exposed to temperatures above 231.9 °C.

Recommendations

Naturally, without a good soldering iron and flux, you won’t be able to make a reliable connection.
However, before soldering stainless steel, you need to consider other points:

1. It is advisable to buy a soldering iron with a tip that does not burn: the service life of such a tool is longer than that of a conventional device. However, it must be constantly descaled and sharpened. In addition, it is recommended to use a soldering iron with constant heating: this will save energy.
2. Soldering stainless steel without flux is a bad idea, since an oxide film will constantly appear.
3. Inexperienced craftsmen should practice a little on unnecessary parts and scraps. You need to remember: a reliable connection is difficult to tear off, and you can check its quality using a screwdriver or an awl.
4. A part treated with a solvent should only be touched with gloves, since a small stain left on the surface can ruin the entire work.
5. Before soldering stainless steel to stainless steel, you need to provide the room with good ventilation. In addition, do not touch heated metal or solder with your hands, or inhale toxic fumes.
6. Containers with substances must be immediately closed with a tight lid after use.
7. The finished part must be cleaned of flux and soldering compound. Food containers are treated with soapy water and boiled to neutralize aggressive acids.

Basic mistakes

If, taking into account the recommendations, it is still not possible to make a high-quality connection, then such a failure may occur due to:

• poor metal stripping and poor degreasing;
• insufficient heating of the stainless steel;
• incorrectly selected solder or flux;
• the fact that the soldered part was subjected to mechanical stress too early, since the product did not have time to harden.

Conclusion

The article discussed how to solder stainless steel to stainless steel. To perform the work described, you need to purchase the necessary equipment and devices. During soldering work, the main thing is to make high-quality seams that will provide the parts with a reliable connection. Additionally, with the information in this article, anyone can repair small stainless steel items themselves using a soldering iron, tin solder, and flux.

Source: https://sarafan-news.ru/4955

How to solder correctly with a soldering iron with rosin: instructions and recommendations

remontoni.guru > Tools and equipment > How to solder correctly with a soldering iron with rosin: instructions and recommendations

Nowadays, almost every person needs to be able to solder using a soldering iron with rosin. Since no repair of various electrical appliances can do without this. You can learn how to properly solder any object by reading this article.

• What should a soldering kit consist of?
• Work process
• Useful tips for beginners
• Safety precautions when working with a soldering iron

What should a soldering kit consist of?

In order to solder anything, you need to acquire the following tools: pliers, Phillips screwdrivers of various sizes, files, wire cutters, and, of course, the soldering iron itself, solder for soldering and flux.

There are many types of soldering iron , but their operating principle is the same for all, so choose the tool that you like best.

The best option for an inexperienced person would be an electric soldering iron operating on a 220-volt network with a power of 40 watts. In the future, as soon as you master all the intricacies of this work, you can purchase a power regulator for more complex work.

Solder is a metal alloy, which can be made of tin or lead, and is necessary in the soldering process, as it helps connect metal elements together. In the store it is sold as wire, but you can also buy solder in the form of a tube with rosin .

Flux is a product of processing wood resin. There are several types of flux, but the most common and effective for work is rosin flux . Help you get rid of acid on the soldering tool tip.

Work process

Before starting work, it is necessary to clean the surface of the soldering iron from acid. Since during previous work a film of oxidizing agents or other debris released during melting appeared on it, which will interfere with the work process.

To clean, you need to perform the following steps: heat up the soldering iron, then take sandpaper and use it to clean the tip . After this you can get to work.

Main stages:

1. To begin with, it is recommended to open the window in the room, since the room should be well ventilated so as not to harm your body during work.
2. Now plug the soldering iron into a power outlet. As soon as smoke stops coming from the tip, you can begin the soldering process.
3. Touch the tip of the soldering iron to the rosin, then wait a few minutes and tin the latches of the parts you need, to do this, just lean the soldering iron against them for a few seconds.
4. After this, place the soldering iron on the board. After ten seconds, you can repeat the process.
5. Once you've done a few passes, the job is complete, although if you need to solder copper wire, just one tinning is all it takes.
6. After tinning the copper wire, it must be coated with tin; to do this, touch the tip of the soldering iron to the tin alloy, and then transfer it to the wire. If you did everything correctly, the wire should change its color to silver.

Useful tips for beginners

• To achieve the most effective result, it is recommended to use solder with rosin. The best solder is considered to be tin in its pure form, but it has a significant drawback: it is too expensive. So, it is recommended to replace tin and use a lead-tin alloy as solder.
• During the melting process, the most important factor is the cleanliness of the joined surfaces from acid or other debris. So you need to do some cleaning before starting work; clean the surface as thoroughly as possible using a knife or sandpaper. As a result, the surface should become lighter.
• After this, it is also recommended to clean the surface with rosin.
• If you are soldering an object with a large surface and you do not have enough solder, then simply wait for the first part of the solder to cool, and then apply more nearby. The main thing is to ensure that the alloy is distributed evenly over the entire surface.
• There are times when you can solder something without using a soldering iron. To do this, you just need to take rosin and dissolve it in an alcohol solution, then apply it to the surface using tweezers or a screwdriver.

By the way, this method does not cause any harm to the human body, since no harmful substances are released during operation, unlike conventional soldering. So it’s up to you to choose the soldering method.

Safety precautions when working with a soldering iron

During work, solder and rosin, when certain temperatures are reached, will release various chemical elements that have an extremely negative effect on the human body, so it is necessary to work in a well-ventilated area, such a workplace will be able to reduce the content of harmful substances in the air.

https://www.youtube.com/watch?v=n1mQng5Okk8

You can also harm yourself when using a soldering iron from a low-quality outlet . Therefore, before starting work, it is recommended to make sure that your workplace will be as safe as possible and that the outlet is in working order.

If you do not operate it correctly, you may experience a fire, since the soldering iron has a high temperature when heated. To prevent this from happening, use special soldering iron stands that will not catch fire from high temperatures.

After reading this article, you know what rosin, flux and solder are, and now you are familiar with the main points of working with a soldering iron. So you can start repairing electrical household appliances yourself using a soldering iron, most importantly, do not forget to follow the tips described in the article, and you will succeed.

Source: https://remontoni.guru/instrumenty-i-oborudovanie/kak-payat-pravilno-payalnikom-s-kanifolyu-instruktsiya-i-rekomendatsii.html

Rules for soldering copper wires

One of the best ways to connect copper wires is soldering. It provides high strength and electrical conductivity. At the same time, soldering is easier to carry out than welding, and it is more reliable than simple twisting. Although the wires in junction boxes are often connected using self-clamping terminals such as WAGO, soldering techniques will not hurt any electrician to know.

You can learn how to solder copper wires in a few minutes, having all the necessary materials and equipment.

The essence of the process

The essence of the soldering process is that metals are joined together using an alloy that has a melting point lower than the melting point of the substances being joined.

During soldering, materials are heated to the melting temperature of the solder. This ensures very strong adhesion (sticking) - the property of materials to adhere to each other at the molecular level.

However, the main parts do not melt and mix with the solder material, as happens when welding using filler material.

Soldering iron and solder

Soldering irons are traditionally used for soldering copper wires. There are several types of them, including electric and gas. Soldering of copper wires is carried out using an electric soldering iron with a copper tip. This tool consists of a copper rod, sometimes nickel plated, that is mounted in a heating element housing.

The heating element operates on direct or alternating current. The supply voltage can vary from 12 to 220 V. For soldering copper wires of electrical wiring in the house, the most common soldering iron with a power of 60 W is suitable. If you need to solder thin wires of an electrical appliance, then a less powerful tool will do. It is important that it heats the copper material well and melts the solder.

To ensure high soldering quality and joint strength, it is necessary to remain still while the molten solder cools. You can hold the wires with your hands, but it is more convenient to use tweezers or clamps.

Tin-lead solder is used for soldering copper wires. Most often this is POS-61, but you can also take POS-40. The marking indicates the composition - tin-lead solder with a tin content of 61%.

Solder is usually produced in rods with a diameter of about 8 mm or in the form of solder wire with a diameter of 2 mm. General purpose solder is often used for soldering copper wires, which looks like a hollow tube of tin-lead alloy. Inside such a tube there is flux powder.

Application of flux

In order for the solder and the wire material to interact with each other, and the connection to be high-quality, the wires must be cleaned of the oxide film and only then soldered. For cleaning, you can use sandpaper, and for subsequent processing, use a special substance - flux.

Flux will not only clean copper wires, but will also create a thin protective film that prevents oxidation of the material.

It is allowed to use both solid flux - pine rosin, and liquid - various types of soldering acids or a homemade composition.

Sometimes, in order to correctly and firmly solder copper wires to each other or to any metal object, they use only liquid flux. You can prepare it by dissolving ordinary pine rosin in ethyl alcohol.

Soldering acid is prepared independently by dissolving zinc granules in hydrochloric acid in the proportion of 412 grams of zinc per 1 liter of acid.

But it’s better to buy ready-made flux that meets all quality standards, since bringing acidic compounds to copper wires is undesirable.

How to solder correctly

To reliably solder copper wires, you need to prepare a soldering iron. If you do not tin the tip before work, the solder will not stick, but will roll off the rod in balls. This happens because the tip is covered with a layer of copper oxide and carbon deposits formed during previous soldering.

Preparing the soldering iron

For ease of work, some specialists sharpen the tip with a flat file to give it the shape of a spatula or flat screwdriver. The sharpening angle should be 45-60 degrees.

A non-burning tip (eternal) cannot be sharpened under any circumstances; special sponges are used for it.

The mechanically cleaned tip must be heated and then tinned. To do this, it is coated with flux.

If the flux is solid (rosin), simply immerse the tip in it. The rosin will melt and cover the heated surface. After this, you need to touch the solder bar with a soldering iron and heat it up. The molten solder will coat the tip, protecting it from further oxidation.

The procedure for tinning a soldering iron must be repeated as carbon deposits form on it. This happens because the temperature of the tip is much higher than the melting point of the solder, and over time it begins to burn. To reduce the likelihood of this happening, it is recommended to use a soldering iron with temperature control.

Preparing the wires

The copper wires to be connected also need to be prepared for soldering. First, remove the insulation from the ends at a distance of about 4 cm, strip them, twist them together and tinning them. Copper wires can be tinned as follows:

• heat the twist with a soldering iron;
• coat with flux;
• Apply a small amount of solder, spreading it over the surface of the wire.

The actions are similar to those performed when tinning a soldering iron tip. If you are going to solder stranded copper wires, then you must stock up on liquid flux, since it will be very difficult to cover the entire surface of the copper “hairs” with molten solid rosin. To get a quality connection, you need to heat the stranded wire and then dip it in liquid flux, which will wet the entire surface intended for soldering.

Further, soldering of stranded and single-core copper wires is carried out in the same way. The two or more conductors being joined are heated together and solder is applied to them. After applying it, it is necessary to ensure that the joint remains motionless while it cools. It is not allowed to accelerate cooling by wetting it or blowing air on it.

Copper and aluminum connection

When connecting copper and aluminum wires by soldering, you can encounter many difficulties, which can only be overcome by using alternative connection methods.

The fact is that both aluminum and copper are covered with an oxide film in air.

And if these films themselves do not affect the state of the conductor in any way and even provide fairly good conductivity, then when combined they contribute to the occurrence of a powerful chemical reaction.

Under the influence of moisture contained in the air, at the point of contact between aluminum and copper oxides, the process of electrolysis begins, that is, an electric current is formed due to the fact that the ions of both materials have different electrical potentials.

Electric current is the movement of charged particles - ions, and during their movement, metals at the point of contact are destroyed. At the same time, aluminum is more destroyed. Destruction causes the contact to deteriorate, and subsequently the electrical resistance of the connection increases and it heats up. With severe corrosion, when direct contact between the two materials has already been lost, an electric arc occurs, which completes the destruction.

It is recommended to connect copper with aluminum only through a third, neutral material. Most often, steel terminal blocks or clamps are used for this.

Source: https://svaring.com/soldering/praktika/pajka-mednyh-provodov

How to solder with a soldering iron with rosin

My relationship with radio and microelectronics dates back to childhood. From an early age I was interested in soldering, and I already have enough experience behind me to share it with readers.

Many beginners who want to play with microcircuits, when approaching the matter, begin to feel intimidated by such a wide range of possibilities, and do not know where to start. You can start with the simplest breadboards, this will help you understand the general features and get a little familiar with such an interesting art. After some shenanigans with breadboards, you can start moving to a simple circuit board without tracks (an example is the GMC-4).

For many people, the soldering process involves the following plan: plug the soldering iron into a socket, wait for the soldering iron to heat up, dip the tip in rosin, bring it to the soldering area and magically everything works out, but this is far from real soldering.

If you use the above soldering plan, then while you are carrying the soldering iron to the soldering site, all the rosin that you rolled onto the tip of the soldering iron will almost completely burn out and not only will the soldering site be of poor quality, it may not work out at all. At the very beginning of my acquaintance with the craft of soldering, I did much the same without understanding at all how to do it correctly.

My father came to the rescue, and thanks to his advice, I learned the basics of soldering, everything else was learned as the range of work increased, and at the moment I can share my accumulated experience with you.

What is rosin used for?

In many life situations when high-quality and fast soldering is required, it would be most advisable to use rosin for soldering. It was with her that I began my immersion in this art.

Many who started soldering used rosin for soldering, but no one thought about what rosin is and what useful qualities it has.

The starting raw material from which rosin is produced is the most common pine resin, which, in addition to rosin, contains various vapors in the resin composition.

The entire manufacturing process is very simple: turpentine fumes are evaporated from raw resin using various technologies, and the output is a material ready for soldering. Rosin is easy to use and very pliable, making it ideal for beginners to get used to the soldering process.

If you need simple soldering of copper parts, then rosin will do the trick. Due to its low cost, it is a convenient material.

Soldering process with rosin

Rosin is sold both pure and in the form of liquid or viscous fluxes. The price for one kilogram of solid rosin is 400-500 rubles. And so let's begin the soldering process. To ensure everything works out and the joint turns out strong, follow these instructions.

Firstly, as in any other work, we need to prepare our working tool, in our case it is a soldering iron, we need to heat it up, and also clean the tip and cover it with a thin layer of solder.

The next step is to put a small amount of rosin on the tip and immediately connect it to the solder. It is possible that the solder will not stick to the tip, in which case you will need to take a natural board and apply the soldering iron tip to it for a short time, then repeat this several times. This way we will achieve the result we need to work.

Wire soldering process

In order to solder two wires together, first we need to tin the wires, from the insulating layer, at this point the main thing is not to overdo it and clean off exactly as much space as is required for soldering (If you clean off more, it’s okay to shorten the wire).

After you have tinned the wires, we lower part of the wire into rosin and press it with the tip of the soldering iron, then immediately, without lifting the wire from the rosin, we connect it to the second one, after which all we have to do is cover the joint with tin.

(You can check the quality of the work done by color; if the soldering area turns silver, then the solder is considered correct.)

Soldering process of copper part

Often we need to solder a wire to some copper part and connect the contacts. Now we will look at how to do this. To begin with, just like for soldering with wire, we need to prepare our tool, as you can see above how to do this.

Let's move on to the soldering process, first we need to apply a rosin-tin mixture to the tip of the tip and rub it at the place where the solder will occur. Tinning will be correct if the color is silver. The next step is to put a little bit of iron on the tip of the soldering iron tip and connect the wire to the place that has been tinned.

After soldering the wire to the copper part, you need to let the soldering area cool completely and check the quality of the soldering without sudden movements.

Features of soldering with rosin

As with any activity, soldering has its own peculiarities and tricks to ensure the job goes off without a hitch.

Firstly, this is tinning. The quality of tinning is your quality of soldering; without proper tinning, there will be no normal soldering. So, don’t be lazy and tin it properly before soldering.

Secondly, prepare as much surface as you need for soldering; do not overdo it with the place for soldering; soldering is a delicate art that loves precision. After all, the result of the entire process depends on proper preparation. So, if you don't get the tin right the first time, instead of continuing with the damaged material, you should get a new one and try again.

Thirdly, it happens that while soldering you do not have enough flux, in this case the correct decision would be to leave the soldering to cool and not continue to grind, it would be better to take the missing amount of flux and continue soldering than to ruin the workpiece completely.

Results

In this article, we looked at all the features and processes of soldering with rosin, we looked at the basics of working with a soldering iron, now you can easily apply the material you read above in practice.

Admin

Source: http://kakpravilino.com/kak-payat-payalnikom-s-kanifolyu/

How to solder aluminum with tin?

Soldering aluminum with standard solder using conventional technology is unreliable and impossible. The tin on it rolls into a ball, not wanting to stick, and if it does stick, the result is a weak connection that breaks under the slightest load. To prevent this from happening, you need to solder in a special way, and then even ordinary solder will hold tight.

Inventors shop at a budget Chinese online store.

• solder 60/40;
• mineral oil or petroleum jelly;
• alcohol.

How to solder aluminum correctly

An oxide film instantly forms on the surface of the aluminum, which prevents adhesion between the base and the solder. To prevent it from interfering, you need to create an airless environment at the soldering site. To do this, apply a thin layer of Vaseline to the area of ​​aluminum that has been cleaned of dirt. You can use mineral or other automotive oil instead.

Inventions for DIYers in a Chinese online store.

DIY electronics in a Chinese store.

If Vaseline was used, then you need to apply a soldering iron tip to it so that it melts into liquid oil. After this, take a mounting knife or other sharp object and use it to scratch the aluminum under the Vaseline.

It is important that the scratches are made on a surface that is sealed from air. As soon as the Vaseline begins to thicken, it should be melted again with a soldering iron tip.

You need to actively rub with a knife blade to remove the oxide film on the metal, and in addition to create a relief to which the solder will then stick well.

Inventions for DIYers in a Chinese online store.

After removing the oxide film, the oil is not erased. A soldering iron tip is applied to the soldering site, and the aluminum is heated to operating temperature. Then the required amount of solder is deposited. It will sit right in the oil.

A drop of solder is lightly rubbed over the prepared surface. You need to press it into the resulting scratches. The solder will push the oil to the sides so it won't interfere with adhesion. The absence of an oxide film will allow the tin to stick to the aluminum, rather than forming into a ball that easily falls off.

Then, tinned wires, wire, or whatever is needed can be applied to the surface prepared with oil and friction. They will be soldered in a second, without taking all the tin from the aluminum, as usually happens. After soldering, the remaining oil is removed with a cotton swab soaked in alcohol.

This method allows you to achieve the same soldering reliability as when connecting two copper elements. Moreover, unlike another common method with oil, when the oxide film is removed by five minutes of friction with a hot soldering iron tip, tearing it off with a knife is faster.



Source: https://izobreteniya.net/kak-payat-alyuminij-olovom/

How to solder correctly with a soldering iron

Knowing how to solder with a soldering iron is very useful in everyday life. There are a number of techniques on how to do this, but it is best to master the theoretical part before starting the work process.