How can you solder if there is no solder - Metals and their processing

How to replace solder

Solder at home can be replaced with:

Solder option	Description
Aspirin	Probably the most affordable option, since it can be found in every first aid kit. To carry out high-quality soldering, be sure to use only a highly concentrated solution. It is also important to consider that soldering with acetylsalicylic acid is accompanied by an unpleasant odor. Therefore, it is important to ensure good ventilation; the room should be well ventilated.
Fat	An affordable product with low cost. The main disadvantages of fat are its consistency and unpleasant odor. However, it melts easily and spreads across solder joints. When considering options for replacing solder for soldering, fat cannot be ignored.
Resin	It is better to use tree resin, especially coniferous ones. It is a non-aggressive substance that is easy to melt and spread over the surface. Can be used for various soldering and tinning applications.
Amber	Exotic and expensive option. However, due to its similar characteristics to rosin, it is the best option for soldering at home. The main disadvantage is low availability. Finding amber is not so easy.
Rosin for instruments	Used for rubbing the bows of musical instruments. However, it can be used for soldering, since it has characteristics similar to ordinary rosin.

Sometimes it happens that you need to find a way to replace solder for soldering, since you don’t have regular rosin at home. At home, you can use many fairly relevant options, some are more affordable, others, on the contrary, will be more difficult to find.

Even acetic and citric acids provide a weak effect, so they can also be used for soldering.

Distinctive characteristics of rosin

The main properties of the material include:

a budget option;
availability is not the highest;
The melting temperature is considered the most optimal - 150 degrees;
suitable for any type of soldering;
when mixed with water, alcohol, acetone, the chemical properties do not change, which is important for soldering;
there is no negative effect on the body.

Making liquid rosin

To make it you will need an alcohol solution of salicylic acid. Rosin should be crushed. You can use a regular mortar for this. Mix rosin powder with alcohol (1:1.15), close the container and place in hot water at a temperature of no more than +80 degrees.

The composition must be constantly shaken, this promotes the formation of a homogeneous mass. The resulting rosin should be poured into syringes (the most convenient option for further use).

Soldering technique

To get quality contact you must adhere to certain recommendations:

the workplace must have good lighting;
remove foreign objects from the workplace;
the room should be well ventilated;
contact surfaces must be cleaned with sandpaper to eliminate oxidation;
Cover the soldering iron tip with prepared solder;
The connection must be made immediately after tinning.

Using Alternative Soldering Media

Soldering work is standard for any chosen product; differences can only be observed at the preparatory stage:

the fat must be melted or heated;
prepare a solution from aspirin;
No preparation is required for resin, amber, and bow rosin.

The use of analogues cannot be a complete replacement for soldering rosin, however, when you don’t have it at hand, they will be an ideal way to achieve the desired result.

You also need to take into account that home methods are not suitable for production purposes. The quality of soldering will be significantly worse than when using standard soldering.

Source: https://Chem-zamenit.ru/texnika-i-avto/pripoj.html

How to solder without a soldering iron and how you can replace it

If it is necessary to connect several parts together, soldering is the most common solution to the problem. In order to solder something, first of all, it would seem, you need a soldering iron itself. However, this is not entirely true, and if this tool is not available at home, then knowledge of how to solder without a soldering iron will be very useful in everyday life.

Tinning without a soldering iron

A soldering iron is a convenient and easy-to-use household appliance that will help when you need to join metals, small items together, or solder circuit boards. However, in a situation where there is no electricity or the tool itself, the question immediately arises of how to solder without a soldering iron at home.

In order for the quality of soldering, as well as the electrical contact, to be at the proper level, it is necessary to carry out tinning: first apply a small layer of solder to the surface of the metals or parts that will be soldered.

When performing this procedure, it is possible to do without a soldering iron. To store solder you will need some kind of metal container. Even a coffee can lid will do just fine. You should place rosin and pieces of tin in the selected container, but you can also use tin-lead solder (POS-60). How to tinning wires without a soldering iron:

Remove the insulation from the ends of the wires (approximately twenty millimeters).
Heat the container in which the solder and rosin are stored until the mixture melts. Instead of a soldering iron, you can use a lighter, candle, stove or other fire source as a heater.
Immerse the bare part of the wires in the molten flux so that it spreads over the entire surface.
Place the treated part of the wires in the solder for a few seconds.
Remove the wires from the solder. Quickly remove excess from them with a rag. Thus, on the part of the wires that went through the process, there should be a small and even layer of solder left.

If it is necessary to tinning a flat area of a part:

Finely chop pieces of rosin and solder and pour them onto the surface of the area.
Bring a fire source under the area with solder and rosin to melt the mixture.
The molten solder must be spread over the surface using a steel tube, rod or something similar.
Remove excess mass with a rag.

If the part is steel, then rosin is not used when tinning it. The process itself remains the same, only taking into account the use of soldering acid, with which the area is treated.

Soldering process

The mass of solder that ends up in the tinned layer may not be enough to reliably connect large wires. It is worth pouring grated solder on the top of the twisted section. Continue heating until the solder melts and fills the gaps in the twist.

If it becomes necessary to solder a wire to a flat surface, both the surface area and the end of the wire are pre-tinned. Now the end of the wire and a section of the part are clamped, and grated solder is poured on top.

After this, a fire source is brought from below, the parts are heated, the solder melts and soldering occurs.

Using the gutter

Wires with a diameter of up to three millimeters can be soldered with a groove, which is used instead of a soldering iron. The gutter is made from thin aluminum foil. The soldering itself is carried out as follows:

At a thirty-millimeter length, the insulation is removed from the ends of the wires.
The bare ends are laid parallel or twisted together.
A short strip is cut from a piece of foil, the width of which will be equal to the width of the joined area.
The strip of foil is deformed into a groove that covers the wires at the junction with each other.
Fine rosin and solder are poured into the groove.
To prevent the solder and rosin from spilling out, one end of the foil is wrapped around the area where the connection is planned.
The area covered by the foil is heated by a fire source until the solder melts.
When the molten mass hardens, the foil is removed from the area.
If necessary, excess solder is removed with sandpaper.

Source: https://pochini.guru/sovety-mastera/kak-pripayat-bez-payalnika

Is it possible to solder without solder?

Sometimes the question arises of how to solder without a soldering iron, because soldering is the most common way to connect small parts at home. But what to do when you urgently need to connect wires, and the soldering iron is broken.

A soldering iron is a convenient and simple tool. You can use it to connect small products at home.

A soldering iron is a simple and convenient tool. Probably everyone knows how to join metals using it. But how to solder without a soldering iron when there is no electricity is a question that should be considered in more detail.

Soldering wires without using a soldering iron

The question of how to solder copper wires with a cross-section of up to 0.75 mm² without a soldering iron is easily resolved. The tinned ends of the wires are twisted together. The soldering area is heated until the solder layer melts. As a heater, you need to use a source of narrowly directed flame: a candle, a lighter, matches. The solder applied to the surface during tinning should be enough to solder the wires.

If you need to solder a wire to the middle of another wire, then its end should be wrapped around the connection point (2-3 turns) or clasped around this area, bending the wire 180º. The soldering itself is done in the same way as connecting the ends of the wires.

It is recommended to solder aluminum cookware with special solder made from tin and lead.

When soldering larger wires, the mass of tin in the tinned layer may not be enough for a reliable connection. In this case, finely grated solder should be poured on top of the twisted area and heated until it melts and fills the gaps in the twist. This way you can solder copper wires with a diameter of up to 2 mm without a soldering iron.

Sometimes it is necessary to solder a wire to a flat surface. To do this, the end of the wire and a section of the surface of the part (case) are pre-tinned. The wire is pressed against the plane of the part, and finely sawn solder is poured on top of the soldering area. By heating the parts from below, the tin melts.

Features of soldering in the groove

Soldering of wires with a diameter of up to 3 mm can be done without a soldering iron using a groove. This groove is made of aluminum foil about 0.8 mm thick. Soldering is done in the following order. At the ends of the connected wires, the insulation is removed to a length of about 30 mm. The bare ends are twisted together or laid parallel.

The foil is cut in the form of a short strip with a width equal to the width of the connection area, and is bent in the form of a groove, covering the joined wires. Crushed solder and rosin are evenly poured into the groove.

One end of the foil is tightly wrapped around the area to be joined so that the solder does not spill out. When working, pliers with thin noses are used. The area covered with foil is heated with a candle, lighter, etc. until the solder melts.

After the mass hardens, the foil is removed.

If necessary, excess solder is removed with emery cloth or a file.

Soldering utensils or containers

The device of a homemade soldering iron.

Very often there is a need to solder a small hole in a pan or bucket. If the hole is no more than 6-7 mm, soldering can be done without a soldering iron. To do this, it is enough to use POS60 solder.

The area around the hole must be carefully sanded inside the container so that the hole is given a conical shape (with an expansion into the container). This area is then treated with hydrochloric or soldering acid. A small thin plate is placed at the bottom of the hole to prevent solder leakage.

From inside the container, crushed solder and rosin are poured into the hole. The container is placed on a source of directed fire. Molten solder seals the hole.

If you need to solder aluminum cookware, you should prepare special solder in advance. You can use one of the recipes: tin and zinc in a ratio of 4:1; tin and bismuth in a ratio of 30:1 or tin and aluminum in a ratio of 99:1. Such alloys can only be prepared at high temperatures by stirring the melt.

Source: https://MyTooling.ru/instrumenty/mozhno-li-pajat-bez-pripoja

What can you solder with other than tin?

A soldering iron is a convenient and simple tool. You can use it to connect small products at home.

How to replace soldering acid at home?

Soldering acid is one of the most popular types of fluxes when it comes to using it in complex work, that is, when soldering metals that are difficult to process.

It is characterized by a high degree of aggressiveness, due to which it does an excellent job of removing fatty films, oxides and other types of contaminants from the surface before soldering.

In addition, the acid ensures the formation of a protective film that prevents the negative effects of environmental factors on the metal.

However, when working with simple connections, especially in cases where thin metal elements are used, it is better to avoid using soldering acid. The danger is that it can simply corrode the metal, so sometimes it is better to look for another flux option.

It is extremely important to pay attention to the concentration of soldering acid, since it can be sold in concentrated and diluted forms. For each specific case there must be a solution of suitable strength so that there are no negative consequences.

The use of excessively concentrated acid for soldering is strictly prohibited. If you do not have a solution of the required concentration on hand, you should take care to bring it to the required parameters, or use another substance that has similar properties.

Advantages of soldering acid

Excellent for use on hard-to-solder metals.
It has a fairly low price, and in addition, you can prepare it yourself.
It copes well with removing plaque and oxides, while simultaneously preventing their further formation.

Negative points

Due to the excessively aggressive environment, it is impossible to work with thin parts.
Direct contact with human skin can lead to extremely serious consequences, since the acid can corrode not only the skin, but also muscle tissue.
The acid has an extremely unpleasant odor, and the vapors released when using the substance are extremely harmful to the respiratory system.

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What can soldering acid be replaced with?

There are not many substances that can be considered as an alternative to this acid. Some of them can be prepared at home without any problems, although it is not always possible to obtain the desired properties.

One of the simplest and most accessible substances that can be used instead of soldering acid is an aqueous solution of ordinary aspirin.

To obtain it, you just need to take a tablet, crush it to dissolve faster, pour it into a container of water and mix thoroughly until not a single solid particle remains.

The use of the resulting solution is similar to other types of flux. The undoubted advantage of such a substance is its absolute harmlessness and safety.

You can also use citric or acetic acid, but they are not as effective as soldering acid. They are sold already in diluted form, so no additional manipulations with them are required.

Another option is concentrated hydrochloric acid. It is one of the main components of the original flux, but can also be used to make soldering acid at home. Due to its high aggressiveness, it allows you to efficiently get rid of a wide variety of types of contaminants and guarantees reliable protection. However, it is hazardous to health and can corrode thin elements, so these aspects should be taken into account when soldering.

Active solder grease has proven itself well, and copes well with contaminants. Also, its undoubted advantage is ease of use and ease of placement on the surface of the product. However, like soldering acid, it is a highly aggressive substance that poses a danger to human health and is not recommended for use with thin metal products.

A worthy alternative to soldering acid is phosphoric acid. It is easy to use, affordable, copes well with oxide, grease and other films and deposits, but is gentle on metals.

If you don’t have the original soldering acid on hand, you can prepare a replacement for it at home. Of course, it will not have such a rich cast, but it will still cope well with the tasks assigned to it.

Conclusion

Instead of traditional soldering acid, you can use a lot of other substances that have different properties, but are similar in their effect.

Some of them should be used with caution, keeping in mind their high aggressiveness, while others are absolutely safe, both for metal and for humans.

For each specific case, you can select the most suitable analogue in terms of its properties, which will allow you to painlessly endure the absence of soldering acid.
For many types of fusion welding, a special welding wire is used, which differs in size, diameter and properties

Source: https://svarkagid.com/chem-zamenit-payalnuyu-kislotu-v-domashnix-usloviyax/

What can be used instead of tin when soldering?

A situation often arises when it is necessary to urgently repair an electrical appliance or wiring, but there is no soldering iron at hand, or it suddenly breaks down. There may be no power at this moment.

Often this situation arises on a camping trip, in a country house without power supply, or simply while driving a car. You can solder without a soldering iron, but you can’t do it without any special tools.

We use flame

The easiest way is to locally heat the joint with an open flame, candle or lighter. The melting point of ordinary solder is 200-280 degrees. Any combustion source can easily cope with this value.

So-called turbo lighters are best suited for these purposes, in which the flame comes out under pressure, creating a powerful local heating area. In addition, such a flame will not smoke the junction of the wires, and it can be directed with high precision.

There are compact gas burners that are generally ideal for such work. If you go on a hike, or to the country, this tool should be at your fingertips.

For such cases, it is better to use solder that is not refractory, for example, POSV33. Its melting point does not exceed 150 degrees. If you don’t have flux on hand, you can use the folk method. Apply crushed aspirin.

The wire is stripped, treated with flux, and heated with a flame. Solder in the form of a thin wire is placed directly into the heating zone. As soon as the tin begins to melt, a drop is applied to the heated twist, and then with a flame we achieve penetration of the melt throughout the soldering area.

Soldering without a soldering iron with a flame from a match or candle is accompanied by soot, so this method should be used only as a last resort. An alcohol lamp or a dry alcohol tablet is good for these purposes.

Homemade soldering iron from a candle

You can make an improvised soldering iron from a wooden block and copper wire.

When working with such a device, soot is removed from the work area. Of course, this method is only suitable for thin wires, since the efficiency of the device is low and the heat will be dissipated along the copper wire.

Using such a simple device, you can solder a wire to the board without a soldering iron. Direct exposure to open fire can damage other parts or lead to peeling of the board tracks, so this method is virtually indispensable when carrying out extreme repairs.

Considering the low power of an improvised “spark soldering iron”, it can be used to repair thin wiring without fear of burning it out with high temperature. For example, fixing headphones on the road.

Such connections are not reliable enough. Therefore, as soon as you get to a regular electric soldering iron, you should solder again.

Hot Iron

A metal object is heated on an open flame, for example a gas burner, or simply in a fire. A thick paperclip or nail will do. The size is selected based on the thickness of the material being soldered. The improvised tip is red-hot, then pressed against the prepared soldering area.

Solder must be placed in the work area in advance . It will not be possible to solder it efficiently in one go, so the procedure should be repeated many times.

This video demonstrates a simple method of soldering wires using a regular candle.

Sun and magnifying glass

By concentrating the sun's rays with a magnifying glass, you can create a point with a temperature of up to 600 degrees. This is quite enough to melt the solder, provided several conditions are met. Firstly, the magnifying glass must be fixed , since an unstable point of concentration of solar energy will not create the required temperature. Secondly, this value (600 degrees) is only theoretical.

When heating a material with good thermal conductivity (in our case, copper wire), the heat will instantly dissipate. However, a magnifying glass with a diameter of 8-15 cm is quite suitable for extreme soldering. Of course, provided there is sun and a cloudless sky. The greatest effect is achieved at noon.

Short circuit

This method is used when connecting single-core electrical wiring to improve contact in the twist. It is based on the spot welding method. You can use a regular car battery.

Therefore, the cables that supply voltage must be of large cross-section. Care must be taken when working.

Wires are suitable for “lighting”, which motorists use to revive a dead battery. To solder a wire without a soldering iron using a battery, you need to briefly touch the terminals to the twist at a distance of 1-2 cm. The contact time should be no more than 1 second.

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Otherwise, you can damage the battery and melt the soldered wire. The joint is pre-treated with flux, and a piece of solder is placed on it.

Homemade soldering iron from a gas lighter

If you need to quickly solder, you can build a simple soldering iron from a regular gas lighter. For production you will need:

Lighter in a durable casing that can withstand prolonged heating. It is better to take the “turbo” version, designed for burning in the wind. These models have a more stable flame and heat-resistant plastic. In extreme cases, a regular one will do, just not a disposable one, which will melt in the first minute of burning. The metal case will withstand prolonged heating, but at the same time it will become hot, and it will be uncomfortable to hold;
Copper rod 3-5 mm in diameter for making a sting. You can take a piece of power wire and remove the insulation from it;
Thin wire for fixing the tip to the lighter body.

We wrap the improvised tip to the body with a thin wire as close as possible to the lighter nozzle. Please note that the finger with which you press the button should not touch the metal parts of the structure.

The soldering iron is ready. The tip heats up in a few seconds. This option, in contrast to direct heating of the soldering area with a flame, allows soldering on the circuit board.

Solder paste for soldering without a soldering iron - application features

With any heating method without a soldering iron, working with hard solder is inconvenient. For soldering using a non-contact heating method (namely, we are considering them), special soldering pastes have been developed.

Any paste must contain the following components:

Ground powdered solder. For different types of soldering, different degrees of crushing are used;
Cleaning composition – flux;
Binding additive for maintaining consistency and fixing parts to be soldered before soldering;
A variety of additives that accelerate reaction, activators, antioxidants.

Solder in pastes can be either compound (lead, tin and silver in different proportions) or simply lead. The last option is the most common.

The cleaned contacts are coated with paste, connected to each other and heated in any way. The flux, having completed its work, evaporates (partially), and the solder included in the paste instantly melts and efficiently connects the components being soldered.

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Solder penetration with this method is very high, the quality of the connection is much better than when using hard solder.

Soldering with paste is used not only in the absence of a soldering iron. For mounting radio components with SMD contacts, this method is simply irreplaceable.

Another advantage of the paste is that it coats the stripped contacts, reducing the likelihood of oxidation during thermal evaporation of the flux. The consistency is like sour cream; when heated, it does not have time to become more liquid and drain from the soldering area. Solder instantly envelops the contacts and remains on the surface of the parts.

An example of soldering with solder paste without a soldering iron in this video.

Another convenient material if you don’t have a soldering iron is solder tape.

In fact, it is a thin foil of solder. With its help it is convenient to connect twisted wires. The technology is as follows:

We strip the wire, form a twist;
Process with flux;
Wrap the soldering area with tape;
We heat it using any method other than a soldering iron.

The flux is located inside the solder roll and does not evaporate when heated. The thin strip melts quickly and the solder fills the tiny gaps at the junction.

Flux for soldering brass with tin

How to fix a Christmas tree garland without a soldering iron

If the garland has a control unit, you need to open its box. Most often, one of the thin wires responsible for a particular color breaks. It is soldered to the board using any of the above methods.

If the reason is not in the control unit, you should find a burnt out element or a break point. A break is looked for using a tester using the inverse arithmetic progression method. First, the halves of the garland are measured. The faulty half is then divided in half, and so on, until damage or a burnt element is detected.

The break is again soldered using the method discussed above, or twisting is done.

A faulty light bulb or LED is replaced or simply shorted out. It is not recommended to abuse this method, since each blocked element increases the current in the circuit, which will lead to a chain reaction of burnt out light bulbs.

Source: https://rem-serv.com/chto-mozhno-ispolzovat-vmesto-olova-pri-payke/

Improvised means for replacing rosin

Any soldering can be successful only if all requirements for the procedure are met. One of the main conditions is to use a multicomponent flux or regular rosin.

There are a sufficient number of ready-made products on sale. Rosin is considered the most affordable and popular. It happens that the material is not at hand, but something needs to be soldered urgently.

We have to figure out what can replace rosin without compromising the result of the work. Fortunately, a large number of special fluxes are produced, and in addition to them, you can use improvised means.

Material requirements

Any flux is designed to remove oxide deposits on metal parts, prevent oxidation during soldering, and improve the distribution of solder mass in the work area.

Rosin copes with the task successfully. The connections are high quality and durable.

When thinking about how to replace rosin at home, you should remember the need to perform all functions with solder.

The replacement must meet a number of the following requirements:

have a low melting point and low density;
melts well with a soldering iron;
do not spread outside the working area;
effectively dissolve oxides;
evenly distributed over the surface;
do not react with metal parts and solder;
can be easily removed upon completion of work.

Flux decomposition products, together with dissolved oxides, should be easily pushed out of the weld formation zone by the solder melt.

Natural light yellow rosin, similar to a glassy mass, is ideal. Experienced craftsmen suggest what can replace it.

Aspirin and battery electrolyte

Many experts consider the most affordable option to be the use of pharmacy aspirin.

Please note that it will not be possible to replace rosin with effervescent tablets. They contain fillers (sodium compounds) that are not needed for soldering. Therefore, the most common simple aspirin is used.

The tablets should be crushed to a powder and dissolved in water or regular wine-vodka alcohol. You can use cologne as a solvent.

Acetylsalicylic acid dissolves well. Its properties are often sufficient to clean the surface and remove dirt. It can replace rosin without difficulty.

The inconvenience is the need to work under a ventilation hood or in a ventilated place. Solders without rosin with aspirin release sharp-smelling, harmful gases when heated. It is not necessary and impossible to breathe them.

If aspirin is not available, it is recommended to replace rosin with electrolyte from a used salt battery. It is important that it is not alkaline.

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Fat, resin, amber

Animal fat melts well and is distributed on the surface. Any fat, both food and industrial, will do.

Odors during work are unpleasant, but they can be tolerated for some time without ventilation.

Many craftsmen, especially those living surrounded by forests, use ordinary tree resin. It melts easily and spreads well over the surface of the working area.

There are positive reviews about the use of spruce and pine resin. It is collected in ordinary tin cans, crushed as much as possible, and then slowly melted in a water bath.

The melt must be constantly stirred, removing needles and wood particles from it. This material is as close in composition as possible to rosin. Therefore, you can replace it in this way without any problems.

To solder iron, it is recommended to dissolve wood resin in food vinegar. Please note that you cannot use essence or concentrated acetic acid.

Amber is very suitable for use as a flux. The advice is acceptable for residents of regions where amber is mined. For everyone else, it is difficult to replace rosin with amber. The price is too high.

Non-standard methods

If there is no rosin nearby for soldering, you can use material for rubbing bows. It's better cleaned. All properties are saved. The cost of replacement will be significant.

Savvy craftsmen who have solders with flux suggest soaking it in alcohol and waiting until the rosin has completely dissolved. It takes a little time.

They say that such an alcoholic extract can successfully replace rosin. The alcohol component will gradually evaporate. The solid component meets the requirements for fluxes.

When working with old equipment, you can replace rosin with residues in places of old soldering. You need to touch the wire and soldering iron there and make a connection. This method is acceptable for extreme situations with not very high requirements for seams.

Acids with stearin

It happens that there is nothing suitable for replacement nearby. Then any acid except concentrated sulfuric and nitric acid is suitable for removing oxides.

To prevent oxidation of the metal, you can thoroughly clean it and the solder, then coat them with stearin. Stearin (paraffin) can be taken from candles.

Before applying a protective layer to the metal, stearin must be melted without overheating. The protective layer will prevent contact with oxygen. Soldering should be carried out under the stearin layer.

Some craftsmen, in order to replace rosin, spread the well-known BF-6 glue onto the cleaned metal surface. In this case, you need to solder while pressing the soldering iron firmly.

The above methods are a “first aid” for a solderer. In unexpected situations, a way out can always be found using simple and accessible means. But still, for the quality of soldering, it is better to use special tools.

Source: https://svaring.com/soldering/flus/vmesto-kanifoli

How to solder without a soldering iron: wire, board, contacts

Soldering technology is often used to join various alloys and metals. It involves the use of special equipment that is capable of providing a targeted thermal effect. In the absence of a soldering iron, soldering can also be carried out, for which special tools are used, for example, a soldering iron. Let us consider the features of such a process in more detail.

How to solder without a soldering iron

Using a homemade sting

To save money, many craftsmen decide to create a homemade tip. The operating principle of the soldering iron is quite simple:

There is a heating element that receives power from the power supply.
Heat is transferred to the sting, which has a pointed shape.
When the tip comes into contact with the material being processed, it heats up and becomes plastic.

You can make a homemade design as follows:

A piece of copper wire is required, which has a diameter of about 0.5 cm. A conductor can be used as a tip, one end of which is sharpened at an angle of 45 degrees. A small piece of fabric that is temperature resistant is also required.
One end of the cable is insulated. It will be used as a handle. Fiberglass is often used as an insulating material. Fixation is carried out using heat-resistant glue.

Homemade sting

Soldering without a soldering iron can be carried out using a fire source, for example, a gas stove. Using fire, the tip is heated, after which you need to touch the solder or rosin. Due to the use of a special material, the tip will become tinned and the tip can be used as a soldering iron.

Solder the garland using improvised means

Problems often arise with garlands that are used to decorate a home or tree. Due to the use of thin wires, they are often interrupted and soldering is required. Among the features of this work, we note the following points:

In most cases, the problem occurs in the control unit, since the wires are not attached securely.
A breakthrough may occur along the entire length of the product.
If all light sources are connected in parallel, then the failure of only one leads to an open circuit of the entire circuit.

It’s quite easy to find loose contacts, but a break is only possible when using a tester. Only after finding the break point can you start soldering. You can solder without a soldering iron as follows:

The broken wires should be cleaned.
You can make a small twist on which the paste is applied. It will be used to distribute the alloy used.
The next step is to melt the solder, which can be done using a lighter or a candle.
After this, the junction is isolated using a tube, which is also slightly heated to increase its ductility.

Similar technology can be used to restore the condition of headphones. The soldering procedure does not take much time.

Solder paste for soldering without a soldering iron; application features

There is a special paste on sale that can be used as solder. In addition, you can make it yourself. Among the features of the work carried out, we note the following points:

The area being treated is cleaned. The insulation is removed from each wire. After this, it is necessary to degrease, since soot may remain on the surface of the veins.
Using a brush or other similar tool, apply the paste. It is worth considering that it must be distributed evenly over the entire surface of the connection. The brush is selected depending on the cross-section of the wire.
The area where the paste was applied heats up. To heat up the solder, a hair dryer or a homemade sting or a regular lighter can be used as a heater. It is necessary to ensure that the substance does not boil, as this can lead to a change in its basic properties.

Soldering paste without a soldering iron

The composition of the paste you create yourself may vary somewhat depending on the area of application. After exposure to high temperature, the paste becomes a solid material that is resistant to mechanical and other stress.

Foil as a soldering method

The soldering method using foil is characterized by practicality. Typically, it only takes 5 minutes to restore the connection. Foil can be used as solder, which is unwound over the entire area and heated to a high temperature. Due to this, the plasticity of the material increases significantly; after cooling, it hardens.

Foil can be used in a variety of cases. An example is damage to the board or wire connection. Among the features of the work carried out, we note the following points:

Standard contact preparation is carried out.
The ends are twisted to form a joint. Due to this, the reliability of the connection is significantly increased.
The required amount of foil is cut off, the junction is wrapped in several skeins.

After this, uniform heating is carried out using a hair dryer or other heat source. When exposed to heat, the surface of the foil quickly becomes soft and plastic; after heating stops, it quickly cools and hardens, providing the required degree of sealing and strength.

In conclusion, we note that without a soldering iron it is almost impossible to carry out jewelry work, as well as soldering circuit boards. This is due to the lack of possibility of directed heat exposure. However, in some cases a soldering iron and other tools are not required.

Source: https://stankiexpert.ru/spravochnik/svarka/kak-pripayat-bez-payalnika-provod-platu-kontakty.html

What can be used instead of solder when soldering - Metalworker's Guide

How to learn to solder. I decided to prepare just such a small special lesson, not directly related to the main topic, for those who not only have to solder cords, sockets, plugs, but anything else in general. So, let's begin

What do we need for soldering?

Of course, a soldering iron (ideally a soldering station), tin solder, rosin, ideally solder wire, which is a long, thin tin tube wound on a reel, similar to a wire, in the cavity of which there is rosin. Those. when soldering, in this case, we do not need, as in the old fashioned way, to lower the tip of the soldering iron, now into the rosin, now into the solder, but all this happens simultaneously at one point. More on this below

You can purchase all the necessary components at your nearest radio store.

If you do not have a soldering station, which is initially ready for soldering immediately after switching on, but a regular soldering iron, then before work (especially if it is new) you need to prepare it in a special way - tin it, otherwise it will not solder. Now let’s look at what “tinning” means.

How to tin a soldering iron?

Take a file and apply it flat to the cut of the soldering iron tip. Now we sharpen in the same plane, periodically looking at the tip, until it becomes flat, smooth and shiny.

After this, we lower the heated tip into rosin and immediately into solder (into tin). There will be almost no solder sticking to the tip, so immediately after this procedure we apply the tip to a small board, preferably of natural origin (not chipboard), preferably spruce or cedar (resinous), but in principle, any will do, you’ll just have to mess around longer.

So, we repeat this procedure (rosin → solder → board) until the cut of the tip, prepared in advance with a file, made of yellow-gray heated copper, becomes silvery and shiny from the solder evenly covering it. This is what is called “tinning”, in this case a soldering iron.

This is what a tinned soldering iron tip should look like.

Now we will learn to solder wires (after tinning it) to a brass tin, also tinning it from the beginning.

We dip the soldering iron tip into rosin, then into solder, and immediately, with the plane of the tip parallel to the plane, we bring it close to our brass test subject, without allowing the rosin to evaporate, we press it, then we rub it in, we grind, in general, we tin. If the rosin has evaporated or spread, we repeat the process, and gradually, gradually our tin is covered with high-quality solder adhering to it. If the material is clean or without strong oxides, then such tinning occurs quickly.

If solder wire is used, then we lean the tip of the soldering iron against the tin, and bring the tip of the solder wire to the point of their contact, trying to touch more of the tinned part of the soldering iron, and rub it against this part so that the tin and rosin enrich the contact point.

How to tin a wire?

Now let's tinker with the wiring. Carefully remove the insulation just enough so that we have enough space for soldering, and for the location of the heat-shrink tube (or other insulator) so that later there are no short circuits (short circuits)

It is easier to tin the wire, because Usually, the metal under the insulation is clean, not oxidized. We dip it in rosin, placing the tip of a heated soldering iron on top of it and slowly pull the wire out from under the soldering iron after the rosin melts and starts smoking. This is done, as you probably understood, so that the molten rosin envelops the contact part of the wire. Now we enrich the soldering iron tip with solder, touching the tin, and bring the tip to the rosin adhering to the wiring.

If the wire is copper and clean, tinning will occur immediately.

If not, you may have to repeat the operation or use solder paste instead of rosin - a special chemical (like soldering acid, if anyone is familiar) that allows you to tin, for example, even iron.

This is what solder paste looks like.

How to solder a wire?

We have a tinned experimental brass tin and a tinned wire, which we now have to connect, seal with heated solder and then cool in order to forever maintain their electrical connection, which we do by bringing the tinned part of the wire to the tinned part of the tin.

We bring the soldering iron tip enriched with solder to the place of their contact so that the solder covers the tinned parts of the soldered parts well. This will be facilitated by the rosin involved in the process. If something doesn’t go well, dip into it. Once the parts are in the molten solder, try not to move them anymore. You can lightly blow on the solder area until the shine of the solder darkens slightly, indicating that the solder has hardened.

That's it, congratulations! You did it.

How to unsolder the wire?

You can unsolder wires and various soldered joints using the reverse method - by heating the soldering area (tinned and dipped in rosin, heated) with a soldering iron tip until the solder melts.

And probably the final touch - you can also dip a small paint brush into the solvent and wash off the remaining rosin in the soldering areas.

What can you solder?

More precisely, what metals are good to solder? In the first place, this is, of course, copper, brass, gold, silver, lead, and, of course, tin. It is worse to solder (tin) iron, steel, zinc. To tin the latter, you will have to use a special solder paste (see figure above). There are also metals that cannot be soldered at all, for example aluminum.

Source: https://ssk2121.com/chto-mozhno-ispolzovat-vmesto-pripoya-pri-payke/

Technology for soldering wires without a soldering iron: methods and techniques

A home craftsman always keeps a set of tools in his arsenal, one of which is a soldering iron. Soldering is the most convenient way to solder a wire with your own hands, repairing household appliances, computers, and other electrical equipment. However, you may not have a soldering iron at hand or the power may be out, and the need to solder becomes necessary. Therefore, there are ways to connect metal products at home without a soldering iron.

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How to make a homemade soldering device?

You can make a soldering iron from available materials in any place, apartment, house, outdoors, when repairing a car, etc. The optimal solution would be to construct a device from copper wire with a cross-sectional diameter of 4-5 mm.

Thinner wires may burn out, but thicker wires will take longer to heat up and become more difficult to work with. The length will be 10-15 cm. On one side, the end is sharpened or flattened, this is the place where the elements will be soldered.

On the other hand, you can make a wooden handle so as not to burn your hands or use pliers.

The second component of successful soldering is the presence of an open flame. You can use a lighter, a fire, a burner, a gasoline lamp, and other improvised means with which the end of the wire will be heated.

It is necessary to build a stand for soldering, which must be securely fastened. It is important that the heating source is located near the place of work, so that it is comfortable, and the homemade soldering iron does not have time to cool down. You need to prepare a flat container with solder and rosin at hand. Using such a simple method, you can easily repair and solder many things, connect microcircuits to the board.

Another accessible way to make a homemade soldering iron is presented in the video.

Necessary tool

It seems that at first glance, soldering without a soldering iron seems like an absurd task, but there is nothing surprising, especially if the need for soldering becomes necessary. In order for the work to be productive and the result achieved, in addition to a homemade soldering iron, you need to arm yourself with a handy tool:

pliers. It is better to stock up on regular pliers with narrow noses;
file, needle file;
sandpaper;
knife, scissors;
brush.

Every home craftsman has this tool not only at home, but can also be in the car, which makes it possible to carry out soldering work regardless of location. In addition to needing a soldering iron at home, you may need it for auto electrical repairs. Thus, a do-it-yourself soldering iron becomes an indispensable assistant, regardless of the location of the need.

Soldering using paste

You can solve the problem without a soldering iron using a special paste, which you prepare yourself or purchase ready-made in a store. The uniqueness of solder paste is that it can be stored for a long time and, if necessary, used with a heating source at hand. For preparation you will need several components: hydrochloric acid, water, zinc, tin.

All components are mixed, and after the reaction occurs, the water evaporates, resulting in a paste-like mass. Soldering is not difficult, using paste and added components that will allow you to carry out the required work without a soldering iron. Before soldering, the surface or area is cleaned and paste is spread on it. By heating over a fire, the paste melts, forming a strong, protected connection.

To correctly connect the elements and obtain the desired consistency, you can study the relevant recommendations in detail and watch the video.

Soldering with foil

There is a quick soldering method using foil, which acts as solder. The convenience of the method lies in the fact that when melted, the foil takes a neat shape and does not smear or spread.

Can be used for soldering contacts and wires, for which the joint is prepared and the insulation is removed. Next, the foil is wound and subjected to heating, which must be systematic so that the material gradually melts.

Use a lighter, candle or other source of small flame.

The lack of a soldering iron is ultimately not a big problem when it comes to repairing electrical equipment, a computer, dishes, etc. You just need to stock up on the necessary set of tools and components for successful and efficient soldering. It is important to follow safety precautions and also not to allow children near the work site, because soldering is carried out with high-temperature material.

Source: https://oxmetall.ru/pajka/tehnologiya-spajki-provodov-bez-payalnika-sposoby-i-metody

How to solder parts without a soldering iron: soldering wires and circuit boards at home using improvised means

Soldering is a simple matter, so many can do it without even holding a soldering iron in their hands. But there are times when this device is not nearby, but you need to solder something. This is where the dilemma arises, how to solder without a soldering iron, and whether it is even possible to carry out such a procedure without having the necessary tool or the ability to use it.

Many people have had moments in their lives when the wire in the charger, headphones, laptop power supply, or somewhere else broke or broke. What can be done in this case? How can I help myself fix the problem, at least temporarily, until I can solve the problem in a more rational and reliable way?

As it turns out, nothing is impossible. You can solder without a soldering iron. In the most unpredictable situations, it is always possible to solve the problem using improvised methods.

Necessary equipment

Of course, soldering without a soldering iron implies the presence of the most primitive tool and solder. It’s good if you also have rosin or acid, although in extreme cases just an aspirin tablet will do. Among the tools we can highlight:

pliers;
knife;
foil;
textile;
solder paste;
file or coarse sandpaper;
source of fire.

It is not necessary to have all this together. Some tools can easily be replaced with what you have on hand. Instead of a file, you can take a knife , and sticks of the desired shape can successfully replace pliers. The main thing here is to turn on your imagination.

Tinning of parts

Whatever surface is offered for soldering, it is necessary to prepare it, that is, tin it. This will allow you to more reliably connect the parts together, and will also greatly simplify the process itself. To work you will need rosin (or soldering acid) and tin.

To carry out the tinning process, you will need a container where the solder and rosin will be melted. You can use a lid from iron cans, a small metal box, or something similar to a trough. Tin shavings are rubbed here using a file or sandpaper. It’s good if you have tin-lead solder - it’s more convenient to work with. If it is not there, then you will have to use rosin or acid.

Everything is clear with acid, just immerse the stripped edge of the wire in it, and then continue soldering. You will have to do the same with rosin as with tin, but it is not at all necessary to grind it off with a file. Its pieces can be large, since the melting point of rosin is much lower than that of tin, so even large pieces will have time to melt before the metal melts.

The container must be held over a fire source until the tin is completely melted. Next, the bare or stripped ends of the wire are placed first in rosin, and then in molten tin. When the result is satisfactory, that is, the exposed wire is well covered with a layer of metal, the container can be set aside.

If it is necessary to tin a flat-shaped part, then the algorithm of actions will be slightly different. Here, fine tin shavings and rosin are poured directly onto the surface of the part. Next, this part is heated , as a result of which the molten tin will evenly cover it. Remove excess with a rag or sandpaper.

Do not forget that when working with fire, iron parts will heat up, so you need to handle them with pliers or a rag to avoid getting burned. No one has canceled basic safety precautions.

Soldering wires

To solder small-section copper wires without a soldering iron, no complicated steps are required.

It is enough to simply twist the already tinned ends of the wire together, then use a match, lighter or other directed flame to warm them up well.

The solder left on the hairs during tinning is quite enough for them to be firmly connected to each other. After this, it is important not to forget to insulate the exposed areas with electrical tape, hot glue or another available method.

Wires of larger cross-section (up to 2 mm) can be soldered in a similar way. If there is not enough solder from tinning, then tin shavings are carefully placed on the twist, after which the soldered area is also heated. When the tin melts and fills all the voids between the wire hairs, soldering can be stopped. But don’t forget to insulate the exposed area.

If you need to solder a wire to a flat part or connect two parts of a flat shape to each other, then you need to pour crushed solder onto the tinned place, then attach the wire and heat the parts until the tin is completely melted. In the case of two flat parts, the tinned surface is also covered with pieces of tin, another flat part is placed, they are compressed and heated.

Connection with groove

You can solder without a soldering iron in another interesting way. To implement this, you need a small piece of thick foil. This method allows you to solder fairly thick wires with a cross-section of up to 3 millimeters. This method is also interesting because it does not require pre-tinning.

First, you need to strip the ends of the wires by about 30 mm, and securely twist the exposed parts together. Now a small rectangle is cut out of the foil of such a size that the prepared ends can be completely covered with it. Foil is wound onto the wires in the form of a funnel, into which small pieces of rosin and tin shavings are poured. The ends of the groove are twisted to prevent the contents from spilling out.

Now the resulting structure must be heated until the tin and rosin melt. After this, all that remains is to wait for the soldered parts to cool down. The remaining foil is removed and, if necessary, the weld area is treated with a file, needle file or emery cloth. This method is perfect when you need to quickly and without tools solder wires in the field.

Cooking pasta

You can solder without a soldering iron using solder paste. Having prepared such a solution, you can connect not only wires and flat elements, but also some radio components, and also solder the wire to the board without a soldering iron.

To make solder paste, you will need to mix 32 ml of hydrochloric acid with 12 ml of water. 8.1 g of zinc is added to the resulting solution, and after dissolving it, another 7.8 g of tin. All this is done in glass or enamel containers. When the reaction is complete, all that remains is to evaporate the water to form a paste-like mixture.

Now another 7.4 g of lead, 14.8 g of tin, 10 ml of glycerin, 7.5 g of dry ammonia, 29.6 g of powdered zinc and 9.4 g of rosin should be added to the paste. All components must first be heated and brought to a dusty state.

When the composition is ready, it can always be used for its intended purpose. It is preferable to store the paste in a tightly closed glass container. Soldering with this composition is extremely simple:

The areas of parts to be soldered are cleaned.
Using a brush, apply a thin layer of paste to the joints.
The area where the parts are to be welded or soldered is heated with a candle, lighter or other method. It is highly preferable to use a turbo lighter or a gas torch with a directed flame. However, in their absence, any source of open fire will do.

In this way, it is quite possible to solder almost any parts and wires at home without a soldering iron, but the process of making the solder paste itself can be intimidating. But there is a much more attractive alternative - solder paste can be bought ready-made.

For soldering very small parts and thin wires, it is preferable to make solder paste with a slightly different composition . It will contain the following ingredients:

7.4 g lead powder;
7.3 g of zinc in dust form;
14 g glycerin;
4 g rosin;
14.8 g of powdered tin;
10 ml diethyl ether.

All components are mixed to a paste. Instead of diethyl ether, you can use 10 ml of rosin dissolved in glycerin. Using this tool, it becomes possible to solder a wire or part onto the board.

Homemade soldering jig

You can make a soldering iron from a candle or lighter. True, it is better to take the latter from good heat-resistant plastic, since a disposable Chinese device will not work for even a minute, and the metal device can get very hot. You will also need a piece of thick copper wire with a diameter of 3 to 5 millimeters and some thin wire for winding to the lighter.

The thick wire must be completely stripped of insulation, and then bent so that one part can be wound to a lighter or candle, and the opposite end is above the flame for constant heating. Such an improvised tip is capable of soldering even small parts (down to the tiniest resistors). True, you can’t do without tin and rosin. To make work more convenient, it is preferable to sharpen the working area of the tip.

Alternative Repair Methods

If a wire is broken and you urgently need to restore it, at least for a short time, then there are faster alternatives. True, without soldering, but quite capable of helping in emergency situations.

So, a broken wire can simply be cut at the break point and simply twisted together. It is important here not to confuse the polarity, since chargers have a constant voltage. It wouldn't hurt to insulate the twists either.

You can temporarily attach a wire with a flat surface. To do this, just tightly attach one part to the other and fill it with molten plastic. Such restoration will be sufficient if you use the resulting connection carefully and briefly.

No matter what happens, you can always find a way out of the current situation if you turn on your fantasy and imagination. Sometimes this will not help to repair the device, but it will allow you to urgently restore its functionality for a short time.

Source: https://220v.guru/elementy-elektriki/provodka/kak-samostoyatelno-spayat-provoda-i-detali-bez-payalnika.html