What are rutile electrodes?

Rutile electrodes: features and characteristics

From the welders' point of view, rutile electrodes are the best source of filler material. After all, such electrodes, firstly, are non-toxic. Secondly, they “burn” easily. And thirdly, even ceiling seams are welded with rutile.

Therefore, in this article we will consider the characteristics and properties of these electrodes, simultaneously touching upon welding modes suitable for rutile coating.

Composition and characteristics

Electrodes with rutile coating are made from welding wire of the Sv-08 and SV-08A grades, onto which a solid protector (flux) is applied, most of which is natural titanium dioxide - the mineral rutile.

In addition, the flux also contains a gas-protective component of an organic nature, so such electrodes are used only in dried form. After all, a wet coating will not be able to stop hydrogenation of the seam.

The shape and dimensions of such electrodes are regulated by GOST 9466-75. The same document states that the marking of such products must include the letter “P”, indicating the type of flux. It is by this letter that you can distinguish electrodes with rutile from other varieties of similar products.

Application area

The main purpose of such electrodes is arc welding of two (or more) workpieces made of ferrous metals, carried out manually. In addition, these electrodes can be used for surfacing - the formation of a layer of metal on the surface of one part.

However, when considering the possibility of using electrodes, it is necessary to take into account the nature of the filler material, which is used as low-carbon wire (grades Sv-08 and SV-08A).

That is, it must be taken into account that the physical properties of the filler material make the practice of using electrodes with rutile when welding high-alloy steels questionable.

But carbon, structural and even low-alloy steels, such electrodes “cook” very well, with a weld resistance (tensile strength) of up to 50 kgf/mm2.

Welding modes

Electrodes with rutile flux are used in conjunction with any electric arc welding machines. In this case, the strength of the welding current, as well as the connection diagram, is determined according to standard recommendations.

There are no restrictions on the type of seam for such electrodes. Rutile-coated rods can be used to weld vertical and even ceiling seams, joining parts either end-to-end or overlapping. In this case, electrodes with rutile can be used even without special preparation of the edges. There is proven evidence of successful welding of edges coated with paint or primer.

Angular joining of parts also gives good results. After all, rutile coating ensures high quality welds even at the junctions of the deposited material and the base material. That is, the risk of residual stresses in this case is minimal.

Some difficulties when welding with rutile electrodes can only be caused by T-joining with a large gap between the joining edges.

Indeed, in this case, large-diameter electrodes with a thick coating layer are needed. And such filler material will cause difficulties in any case. Indeed, in this case, the degree of porosity of the seam increases, explained by the need to increase the strength of the welding current.

Source: https://steelguide.ru/svarka/svarochnye-materialy/elektrody-s-rutilovym-pokrytiem.html

Marking of rutile-coated electrode: features and composition

No welding takes place without the main element - the electrode. It is worth choosing a certain optimally suitable electrode for a specific welding machine. But there are types that are suitable for almost any brand of welding unit and have a number of advantages.

Such convenient and easy-to-use electrodes include rutile ones, the main thing is that the welding seams after their operation are distinguished by accuracy and subtlety. What are rutile electrodes and when should they be used - in the text.

Composition and purpose

Rutile electrodes, like all others, consist of a core rod and a coating. The rod of all of them consists of metal, but the coating is different . In our case, it is rutile; it is the coating that gives the materials viscosity and certain properties that affect the quality and appearance of the seam. Rutile coating of electrodes is the uniform application of a powdery substance consisting of the elements to a metal base:

• titanium oxide;
• ferrous oxide;
• dextrin;
• feldspar;
• alkaline components;
• aluminosilicates;
• magnesite;
• carbonates;
• ferromanganese.

This composition of the rutile coating facilitates welding of different materials and after work forms a seam of a low-carbon alloy, which differs:

1. super reliability;
2. subtlety;
3. application to a wide range of types of materials, including low-carbon and low-alloy metals;
4. security.

Distinctive features

Rutile electrodes have a number of positive characteristics that distinguish rutile and basic electrodes. Here are some differences:

1. Non-toxic gas when welding.
2. Strong arcing even during voltage surges in the network.
3. Minimal spatter with minimal metal loss.
4. The seam is neat, reliable, high quality with a fine pattern.
5. The seams do not bend or break later.
6. It is easy to separate the slag crust.
7. Allows welding in any position - both vertically and horizontally.

Convenient use

The ease and convenience of working with these electrodes has long been confirmed by welders.

Welding should be done with smooth, uniform, calm movements; molten drops should be easily transferred to the base metal.

Peculiarities

In order for rutile electrodes to work effectively and fully, you need to know several rules for their use:

1. Before work, dry for at least a day or bake for an hour at a temperature of 160-180 degrees;
2. Prepare edges for welding. Especially with a metal thickness of 6-7 mm;
3. The gap is the same throughout the entire welding;
4. Light the arc when changing the electrode just above the end of the seam.

From the recommendations of professional welders, I would like to highlight:

• It is better to weld not very thin metal, as pores may appear (thin metal requires a T-weld and large electrodes);
• Suitable for welding steel with scale;
• The best electrodes for welding on the ceiling and vertically;
• The work can be done both at home and on an industrial scale.

Applications

Rutile welding electrodes are widely used for:

• on transformers;
• generators;
• inverters;
• on gas mains;
• when conducting water;
• during the construction of distribution networks;
• in oil pipelines;
• when repairing tools and spare parts;
• when surfacing the thickness of parts.

Can work:

• on direct current;
• when there is a sharp drop in network voltage;
• on alternating current;
• in any spatial position.

When welding pipes of any diameter and composition, rutile electrodes are the best and most in demand.

Brands and compliance with GOST

All electrodes of this type in composition fully comply with the standards and GOSTs - 9466-75, 9467-75, and comply with international standards.

There are different brands, depending on the composition of the coating. The marking is indicated on the packaging, where the letter P corresponds to rutile, and C indicates the presence of cellulose in the coating composition.

The letters and abbreviations on the boxes are deciphered as follows:

• MR – brand;
• MP3 – brand and diameter;
• U - for welding carbon and low-alloy steels;
• D – with thick coating;
• Three-digit numbers are indices characterizing the weld metal and deposited metal.

These welding elements are produced by both domestic and foreign manufacturers.

Table of manufacturers of rutile electrodes

Manufacturer country	Brand
Russia	MR-3, MR-3S;OZS-4, OZS-6, OZS-12;ANO-21;ZRS-1; ZRS-2
Türkiye	GEKA ELITE
USA	Omnia 46
Sweden	OK 46.00
China	AWS E6013 and E-7018

Domestic types are used more often, since they are distinguished by low prices - from the manufacturer, and in terms of quality and compliance with European standards, they are in no way inferior to their foreign counterparts.

There are different packages - from 1 kg to 5, which allows you to choose the number of electrodes depending on the scale of the upcoming welding work. Depending on the materials for welding, electrodes of different diameters are used:

• 2 mm
• 2.5 mm;
• 3.2 mm;
• 5 mm;
• 6 mm.

Length varies from 300 to 450 mm.

Before welding work, get advice from specialists , because it is likely that rutile electrodes are what you need, just check their quantity, size and details of preparation for work. After all, welding is a process that requires certain skills and qualifications.

If you decide to carry out welding work at home, also consult an experienced craftsman and carefully read the instructions and everything written on the packages. Electrodes do not accept careless handling . Welding rules must be strictly followed, using protective equipment, including safety glasses and special gloves.

By professionally using these electrodes, you will find that the seam turns out beautiful, the costs are low, and it is convenient to work with.

Source: https://svarka.guru/oborudovanie/rashodniki-i-kompletuyushie/rutilovye-elektrody.html

Rutile electrodes: what is it and which brands with rutile coating should I choose?

Electric and gas welding have become widespread in various areas of human activity. Thanks to these technologies, it is possible to obtain high-quality and reliable connections in metal structures and products.

The mentioned connection methods have their own advantages and disadvantages. However, they widely use various brands of rutile-coated electrodes. It is the features of using these consumables that will be discussed in this article.

:

• 1 Features
• 2 Composition
• 3 Application
• 4 Summary

Compound

Rutile electrodes are made from various types of welding wire and coated with a titanium oxide flux of the composition TiO2.

A distinctive feature of the flux is the presence of an organic gas-protective component in its composition. In this regard, the rods must be dried before use.

It is quite simple to distinguish this type of electrode from others by markings. The brands have the letter “P” in their designation, indicating the type of flux. So these welding electrodes can be easily distinguished from others and not be mistaken.

Application

Electrodes with rutile coating are most often used in the case of manual work with steels, including low-carbon steels. However, there is also a limitation. They are not used to form joints in structures subject to high thermal stress.

Bottom line

Rutile coating of electrodes is the safest. It does not have a negative impact on human health, which is why these rods have become widespread. In addition, they are widely used for welding various grades of steel, including low-carbon ones.

The disadvantages include their inapplicability for welding metal structures exposed to high temperatures.

Source: https://tutsvarka.ru/oborudovanie/rutilovye-elektrody

Electrodes for manual arc welding with rutile coating: features, characteristics, types

Electric welding can confidently be called the most elementary, affordable and effective means of connecting several iron parts.

The quality of the work performed, the weld itself, is determined by the reasonable selection of a specific type of electrode. In world practice there are a large number of different brands of electrodes.

The dissimilarity in the structure of the coating and its thickness, the components in the core, the transition area and other characteristics serves as a significant indicator for choosing a specific type of electrodes, depending on the work being performed.

This article will reveal to us all the intricacies of rutile electrodes.

Characteristics: what are the disadvantages and positive signs

The basis of rutile electrodes is formed by a steel axis coated with rutin. This group is implemented when using manual arc welding, using direct or alternating electrical power.

The basic distinction between rutile electrodes and others is that they contain rutile, a mineral of the oxide class. It is the use of this substance that has a positive effect on the production of a weld seam and the preservation of the weld pool.

Any model is indicated by a certain abbreviation. Rutile electrodes are also marked, for this purpose the symbol “P” is used.

The main distinguishing features of rutile-coated electrodes:

• less aggressive effect on the respiratory system due to the use of the mineral rutile, which occurs when titanium oxide is consumed;
• ease and speed of arc ignition;
• arc stability;
• less metal damage during spraying;
• reduction in the formation of pores that occur when oxygen enters the weld pool;
• the operation of these models simplifies the process of removing carbon deposits from the weld;
• the resistance of seams to rupture and fracture increases;
• their use is possible regardless of spatial restrictions.

In an environment where scale and rust form on the surface of the iron to be welded, the use of rutile electrodes will be effective. Regardless of fluctuations in arc length, the joints do not lose their quality characteristics.

When performing work with sudden movements, the arc remains stable. Limited spraying facilitates welding work on vertical areas, including ceiling areas.

To reduce the possibility of cracks in the metal structure, iron powder can be added, which results in an increase in the mass particle of the welded metal.

Likewise, rutile rods can be used when working with low-alloy and low-carbon steels.

But at the same time, rutile electrodes also have their drawbacks:

• drying and calcination is a mandatory step before performing any types of welding work;
• after calcination, they can be used in work no earlier than one day later;
• these rods can only be used when working with low-alloy and low-carbon steels;
• To avoid changes in properties, it is necessary to maintain the phasing of the modes.

Features of use

When performing welding work with working mechanisms such as transformers, inverters or generators, rutile electrodes are also used.

Rutile coating gives positive results if work is carried out in conditions with particular humidity and in environments with limited space. This is the most advantageous characteristics.

Therefore, they are often used in the maintenance of water pipelines and pipe welding.

The great advantage of these types, in contrast to others, is that the reduction in metal spattering makes it possible to deposit a large mass of metal, and the time for cleaning up soot that occurs during work is reduced, since it is much easier to remove.

The increase in joint strength occurs due to significant penetration of molten metal particles.

Chemical structure

The chemical structure of rutile coating consists of the following components: rutile - 48%, feldspar - 30%, ferromanganese - 15%, magnesite - 15%, dextrin - 2%.

The steel axle is almost twice as heavy as the shell itself.

The most famous models

Currently, there are a variety of electrode models in the industry. Rutile electrodes are equally very common.

Let's analyze some brands of products with rutile coating, which are the most well known.

Brand MGM 50k

When using manual arc welding, preference is given to rods of this type, since due to their positive welding and technical characteristics, an improvement in the strength of the seam is achieved.

The formation of slag is observed in small quantities, which reduces the time for its separation. This brand is most effectively used for working with iron, which cannot be previously cleaned of dirt and rye.

Smooth and quiet arc burning is observed.

Brand aws e6013

Models with the aws e6013 rod are the most effective and economical when welding low carbon steel using alternating and direct electrical energy.

A stable arc that can be maintained without much effort contributes to more efficient operation.

The analogy between electrodes of the aws e6013 type and the mgm 50k type is that the latter can also be used regardless of the room or work area.

An additional advantage of electrodes with aws e6013 rod is the formation of slag, with significant fluidity, which makes it quite easy to remove, this allows you to protect the weld pool from damage by harmful inclusions.

Source: https://prosvarku.info/elektrody/rutilovye-ehlektrody

Features of welding electrodes with rutile coating

Welding is a complex process that involves a large number of chemical elements. The joining of metals is carried out using welding electrodes, which act as consumables. Different types of electrodes are used for different jobs and types of metal.

The reliability and strength of the seam greatly depends on the coating of the electrodes. It performs protective functions, protecting the weld pool from exposure to oxygen and other elements contained in the air. The components contained in the electrode coating also affect the properties of the deposited metal.

There are several types of coverage. We will get acquainted with the features of rutile electrodes.

Composition and characteristics of rutile-coated electrodes

Such products comply with GOST E42 and 46. The metal of the connection obtained with E42 rods will have the following technical parameters:

• strength: 410 MPa;
• elongation: 22%;
• viscosity: 80 J/sq. cm.

A seam made with E46 electrodes has the following indicators:

• strength: 450 MPa;
• elongation: 20%;
• viscosity: 147 J/sq. cm.

The basis of rutile rods is wire with a low carbon content - SV-08/08A. Coating is applied on top of it. In markings, rutile coating is designated by the letter “P”.

Manufacturers can make different coating compositions, but in general it looks like this:

• rutile concentrate - 48%;
• feldspar - 20%;
• ferromanganese - 15%;
• magnesite - 15%;
• dextrin - 2%.

Manufacturers can change the composition, modifying and improving it in accordance with the required technical characteristics.

Let's look at a few brands with rutile coating.

Esab OK 46.00

These are products of the Swedish concern Esab, which has factories in our country. They have the following properties:

• No prior preparation required. Even raw rods can be calcined at about 80°C and they will be ready for work;
• Electrodes can be used even on wet surfaces;
• Even a small current is suitable for stable arcing;
• With the help of consumables, you can make a strong and uniform seam that has great resistance to stress.

Omnia 46

They are produced by the American Lincoln Electric, which has been producing welding products since 1927. The products have a low price and are suitable for beginners. The arc remains stable even at high elongation.

When working with electrodes, few sparks are generated, and the seam is strong and reliable. The rods can be used for welding critical structures.

OZS-12

These electrodes have a NAKS certificate, which makes it possible to use them in high-risk facilities. Among the differences of the brand, the following can be highlighted:

• the seam is formed easily and evenly, which is useful for beginners;
• after cooling, a slag crust remains on the joint, which can be easily beaten off.

Despite the fact that other rutile electrodes are insensitive to moisture, this brand requires pre-calcination at 150°C and special storage conditions.

MR-3

These are the most common rutile electrodes on the market. They are produced under the Resanta brand. Here are the advantages they have:

• easy arc ignition;
• formation of an even and durable seam;
• ability to work with different currents.

Before use, the rods must be calcined at a temperature of about 160°C for an hour.

More information about these and other electrodes can be found in this video:

Advantages and disadvantages of rutile electrodes

Compared to other coatings, rutile has several advantages:

• The seam is highly resistant. There are no cold or hot cracks in the metal.
• Unlike acid coating, the arc burns equally on direct and alternating current.
• Processing short connections is much easier than with base coated electrodes, which are difficult to re-ignite. Rutile makes it easy to strike an arc without having to clean off carbon deposits from the end of the rod.
• It is not necessary to prepare the surface for work.

Among the disadvantages of rutile coating it should be noted:

• Electrodes are not suitable for all materials. For example, they cannot be used for welding steels with a high carbon content.
• The properties of the rods deteriorate greatly with increasing current strength, which must be constantly monitored.
• The electrodes must be prepared for work all the time by drying them.

Application of electrodes

Rutile coating is considered one of the most practical. Electrodes of this type are used for a wide range of works. Here are the areas in which they can be used:

• Connecting low carbon structures and products. The coating composition is designed to work with ferrous metals. The seam is smooth and without cracks.
• Assembly of pipeline structures. Electrodes are used when welding pipes for liquids. To work, you don’t have to wait until the surfaces are completely dry.
• Welding and repair of parts that wear out over time. Such rods can be used for surfacing.

Conclusion

Rutile coated welding electrodes can be used for a variety of jobs. Thanks to their technological properties, it is possible to obtain a high-quality and durable connection that will serve for a long time.

Distinctive features of rutile electrodes are high arc stability and comfortable operation, which makes them accessible to use even by inexperienced welders.

Source: http://instrument-blog.ru/svarka/osobennosti-svarochnyh-elektrodov-s-rutilovym-pokrytiem.html

Rutile coated electrodes

When choosing electrodes for certain types of workpieces, it is very important to focus not only on what types of welding wire are included in their composition, but also what kind of coating they have. Rutile coated electrodes are just one type found in welding, but they are one of the most common options.

The main feature of this type is that half of it consists of rutile concentrate. Thanks to this, the weld metal is similar in properties to mild and semi-mild steel.

Compared to acidic coating of electrodes, in this case the likelihood of cracks forming is much less, therefore, the seams are of better quality.

Rutile electrodes for welding

The composition contains carbonates, aluminosilicates and rutile. The more carbonates in the composition of this coating, the less silicon and oxygen there will be in the finished seam.

This coating of welding electrodes adds toughness to the weld metal, as the alkalinity of the slag increases. This in turn increases protection against hot cracking.

Before using materials with such coating, they must be dried at a temperature of 200 degrees for no more than 1 hour. If the temperature or time is exceeded, pores may appear during welding.

Rutile coated electrodes

Rutile coated electrodes have the very important advantage that they can maintain high weld quality even if there is rust or scale on the surface of the base metal, if the arc length changes during the joining process, or other unfavorable conditions are present.

In this case, the electrodes light up well, both the first and subsequent times. The arc burns steadily and is not interrupted by sudden movements. It performs equally well with both direct and alternating current. The coating ensures combustion density, so that the metal practically does not splash.

This provides additional advantages when welding in vertical and overhead positions. To reduce the amount of carbon in the coating, iron powder is added, which also minimizes the number of cracks that form. These materials are widely used where work with low-alloy and low-carbon steels is needed.

It is not recommended to use this variety under conditions with elevated temperatures.

Welding electrodes with rutile coating

Advantages

• Electrodes with rutile coating provide reliable protection from the negative influence of external factors, while maintaining high quality of the seam;
• The coating provides a stable arc;
• Can be used in all positions;
• If all pre-treatment conditions are met, it reduces the risk of cracks and pores;
• Increases the impact strength of metal.

Flaws

• Additional preparation is required in the form of drying and calcination with strict adherence to the regimes;
• Has a relatively low range of interaction with metals, as it is used for low-carbon and low-alloy steel;
• It is necessary to adhere to precise modes, since when the current increases above the rated current, the properties of the electrode sharply deteriorate;
• After calcination, you can use it only after 24 hours.

Physico-chemical composition

Electrodes with rutile coating may have some differences in their composition. But in general, it is possible to determine the average composition, which is found in most cases. As a rule, it includes:

• Rutile – 48%;
• Feldspar – 30%;
• Ferromanganese – 15%;
• Magnesite – 15%;
• Dextrin – 2%.

The mass of the coating is often half that of the electrode rod.

Specifications

Rutile coated welding electrodes have not only the properties provided by the coating, but those provided by the metal rod inside them. Using the example of the technical characteristics of ANO-21, which have the same coating, you can roughly understand what properties other varieties have.

Test round temperature, degrees Celsius	Temporary tensile strength, N/mm2	Relative elongation, %	Impact viscosity, J/cm2	Connection bend angle, degrees Celsius	KCV>34 J/cm2 at temperature, degrees Celsius
+ 20	450	18	78	150	– 20

Surfacing productivity, g/min	Relative metal yield at the weld, %	Consumption of electrodes per 1 kg of seam, kg
14	95	1,65

Brands of electrodes with rutile coating

Practically, rutile-coated electrodes, the brands of which are presented below, are intended for welding metals with a low carbon content. And also with a minimal presence of alloying elements. In other words, these are the simplest consumables, but nevertheless quite common. These include such electrodes as:

• MP-3;
• ANO;
• ZRS-1;
• ZRS-2;
• OZS-4;
• OZS-6.

Designation and marking

The designation of rutile coating in the marking of electrodes is carried out using the letter “P”. The last positions indicate what kind of coating this or that type of consumable material has. If we consider the full marking of the model E46–ANO–21d–UD, 9466–75.

E 432 (3) – P 1, then it is clear that “P” is present and this brand refers to materials with a rutile coating. Brands of rutile electrodes may also have a double designation. For example, E46–LEZANO–21d–UD E 43 1(3) – RC13. Here you can see that there is also a cellulose coating.

Thus, the properties of two varieties are combined here.

Marking of welding electrodes

Choice

Welding with rutile electrodes is quite simple and without unnecessary problems, which is why the choice of craftsmen so often falls on them. When choosing, you need to pay attention not only to the coating, but also to the composition of the rod. Under ideal conditions, it should completely match the metal it is being welded to.

Most grades form a weld metal similar in composition to structural steel. The next choice is thickness. This point turns out to be quite important, since not all brands have thin electrodes in their range, thinner than 2 mm. This may be a problem in some cases.

The thickness of the electrode is selected relative to the base metal and should be equal to it or exceed it by a maximum of 1 mm.

Important! Sometimes, to achieve properties that cannot be obtained with the chosen brand, you can use a properly selected flux, which often solves the problem.

Basic modes and nuances of application

Each brand of rutile-coated electrodes has its own parameters, but they all depend on the thickness of the diameter. Thus, in this example we can consider the basic principle:

Diameter size, mm	Current strength in lower position, A	Current strength in vertical position, A	Current strength in ceiling position, A
2	5090	5070	7090
2,5	60110	6090	80100
3	90140	80100	100130

One of the main nuances of using materials of this type is preliminary preparation. Accuracy is needed here, otherwise the electrodes can be damaged. They need to be dried at a temperature of about 200 degrees Celsius for one hour. Then you need to wait a day and only after that can you use it for its intended purpose.

Source: https://svarkaipayka.ru/material/elektrodyi/s-rutilovyim-pokryitiem.html

Rutile electrodes: composition, marking, coating and application

Rutile electrodes: composition, marking, coating

Among all welders, rutile electrodes are recognized as one of the best, for a variety of reasons. Firstly, rutile-coated electrodes can be used for welding with both direct and alternating current. Secondly, the weld using rutile electrodes is strong and shock-resistant.

What are rutile electrodes and what are they used for. What composition and characteristics do they have, and how to choose a welding mode for them. This is exactly what will be discussed on the website mmasvarka.ru.

What are rutile electrodes made of?

Like all others, rutile electrodes consist of a metal rod and rutile as a coating, which is obtained from titanium dioxide. It is the rutile coating of electrodes that makes it possible to obtain a high-quality welding seam, a stable arc, and a number of other advantages that rutile electrodes have.

By the way, rutile coating of electrodes is considered the safest, since it does not contain harmful substances.

Characteristics of rutile coated electrodes

Rutile electrodes differ in the composition of the coating. As for the rod, Sv-08 steel wire is used for its manufacture. Its metal interacts well with all low-carbon and low-alloy steels; it melts well and easily connects with them.

The composition of rutile electrodes may vary, however, most often, you can find electrodes with a rutile coating of the following type:

• Rutile - almost 50%;
• Magnesite - 10%;
• Dextrin - 3%;
• Ferromanganese - 15%;
• Feldspar - no more than 25%.

Popular brands of rutile electrodes are familiar to almost all welders. First of all, these are such well-known electrodes as: MR-3, OZS-6, OZS-4, ANO-21, ZRS-1 and ZRS-2 electrodes.

Marking of rutile electrodes

Rutile electrodes are designated by the letter “P”. It is usually placed at the very end of the abbreviation. If the letter “C” is indicated next to the letter “P” on a pack of electrodes, then it indicates that rutile electrodes contain cellulose.

Like other components of rutile coating, cellulose is also an absolutely harmless substance. It is for this reason that rutile electrodes do not emit gases that are harmful to the welder’s respiratory tract during combustion.

Application of rutile coated electrodes

As mentioned above, rutile electrodes have gained immense popularity due to their “versatility”. They can be used both to work with an inverter that produces direct current, and on transformers with alternating welding current.

Electrodes with rutile coating give equally good results when welding in all spatial positions. These electrodes are intended mainly for welding low-alloy steels.

Which welding mode for rutile electrodes to choose

Rutile electrodes are very demanding on storage conditions, therefore, to obtain good welding results, they should be dried before starting work. Rutile electrodes are calcined at a temperature of at least 200 degrees. Due to this, electrodes with rutile coating do not splash metal and have easier slag separation than undried electrodes.

As in most cases, to select the correct welding mode for rutile electrodes, you need to take into account not only the thickness of the metal, but also the spatial position. For welding in the lower position, the welding current value is reduced by 20%.

Advantages of rutile electrodes

The main advantages of rutile electrodes include the following:

• Rutile electrodes can operate on both direct and alternating current;
• Rutile electrodes even cook rusty metal well;
• These electrodes have a stable arc that is easy to ignite;
• The weld seam obtained using rutile-coated electrodes has high mechanical strength and impact toughness;
• Pre-dried electrodes before welding have a low metal spattering coefficient;
• These electrodes are very easy to reuse;
• Electrodes with rutile coating are less dangerous than any other.

Thanks to all the above advantages, rutile electrodes have found wide application in welding. Today it is difficult to imagine welding metal structures made of low-carbon steels and pipelines without the use of rutile-coated electrodes.

Source: https://mmasvarka.ru/rutilovye-elektrody.html

Rutile electrodes - composition, characteristics, scope of application

The coating of a welding electrode is a special coating applied to a metal rod. Depending on the chemical composition of this mixture, varieties of electrodes are produced for specific purposes.

Rutile electrodes, which will be discussed in this article, can be considered “favorite” among welders, let’s find out why.

General concepts, composition and characteristics

First of all, it’s worth understanding the name of the coating. Rutile is a natural mineral based on titanium dioxide (TiO2). Other components are also used in the coating of electrodes of this type, the final composition of which is determined in the following proportions:

• rutile - 45-48%;
• dextrin - 3%;
• feldspar - 25%;
• magnesite - 10%;
• ferromanganese - 15%.

The chemical composition of the coating is applied to low-alloy welding wire of the SV-08 or SV-08A grades. The steel is calm and, when hardened, does not produce hot cracks or excessive stress in the weld.

The letter “P” in the marking of the ANO-21 electrode

The marking of electrodes of this group is marked with the letter “P”, indicating rutile coating. Sometimes, to create greater productivity, additional elements are introduced in the form of cellulose, the coating is called rutile-cellulose (designated RC). There are combinations with acidic or basic coatings (RA and RB, respectively).

Rutile produces an acidic slag, providing gas protection from oxides of nitrogen, hydrogen and carbon.

Advantages

The following positive aspects of use can be highlighted:

1. The seam turns out to be resistant to cracks, unlike electrodes with an acidic coating, they provide a stable and strong burning of the welding arc on alternating current;
2. The weld metal has fairly high strength and plastic properties; its quality occupies an intermediate position between the metal of welds obtained with electrodes with an acidic and basic coating.
   Easy arc ignition and re-ignition in case of breakage. Relevant in areas with short seams;
3. Welding can be done on unprepared surfaces that are not susceptible to rust, moisture, or oxidation;
4. Good slag detachability during welding;
5. Low ferromanganese content produces less smoke and dust, improving hygiene conditions.

Weak sides

1. A narrow range of welded steels due to the characteristics of the SV-08 wire used;
2. When moisturizing, drying and calcination are required. You can use calcined electrodes only for the next day.
3. Strict adherence to recommended current values ​​is required. With increasing magnification, increased spattering of the metal is observed and the quality of the weld deteriorates.

Brands of rutile electrodes

Among the popular brands used in everyday life are the following:

conclusions

Rutile electrodes can rightfully be considered universal for use at home. Their remarkable properties, described above, allow even novice welders to work with them without much effort. You can cook various structures that do not experience special loads.

It is important to select the correct welding modes, as well as to know the technique of making welds in various spatial positions.

We recommend! Marking of electrodes for alternating current welding

Source: https://svarkagid.ru/materialy/svarochnye-elektrody-s-rutilovym-pokrytiem.html

Rutile electrodes - technical characteristics, welding and seam features

Rutile electrodes are in many cases the optimal choice for arc welding of ferrous and low-alloy materials. The fused weld formed with their help has good strength parameters. In addition, various welding position options are possible. These positive qualities are a consequence of their composition - the base of the coating.

Types and technical characteristics

Rutile electrodes include products of the E42 and E46 brands. They are designed for welding low-alloy and carbon steels. They are characterized by a high tensile strength of the seam - up to 46 kgf/mm². Each brand of electrode must comply with GOST 9466-75.

When choosing a certain type of product, you should pay attention to its brand. In the nomenclature name, “E” means electrode, and 42 means the tensile strength of the formed seam. Along with this, there is a limitation on the welding position - it is impossible to form a seam in a vertical direction from top to bottom. After the joint is formed, the slag crust is easily removed.

A characteristic property is the preservation of the quality of the seam when changing the length of the arc. But the best result is achieved with a short arc. The operating mode of the welding machine is direct current with reverse polarity.

Technical characteristics of E42:

Technical characteristics of E46:

Recommended value of welding current for different electrode diameters and their positions:

Seam performance qualities:

• Retains its properties under dynamic loads in conditions of negative temperatures.
• Used in shipbuilding and machine tool production.
• Manufacturing of containers operating under high pressure.

Such a wide range of applications is made possible due to the unique properties of rutile electrodes. Before work, the products should be calcined at temperatures up to 350°C for an hour.

Source: https://ismith.ru/welding-equip/rutilovye-elektrody/

The best brands of rutile-coated electrodes: features and application

The metal welding process is widely used not only in industry, but also at home. The most popular currently is electric electrode welding. This popularity is due to the simplicity of welding equipment, as well as the quality of the connection of various metals.

A high-strength and high-quality weld can only be achieved using electrodes with a special coating that protects the weld pool from exposure to oxygen. The best brands of rutile-coated electrodes are very popular not only among experienced welders, but also among home craftsmen. The main thing is to know their features and basic properties of use.

Selection of welding electrodes

The high level of strength of the welded joint depends entirely on the correct choice of consumable material (electrode). Therefore, the solution to such a problem must meet the basic requirements for high-quality welding.

The correct choice of electrode for welding must meet the following conditions:

• the mechanical properties of the weld pool metal must correspond to the base material;
• the weld should not have cold or hot cracks, i.e., have high technological strength;
• the versatility of the electrode ensures welding in various positions, as well as on any type of current;
• when joining alloy steels, the electrode material must ensure high corrosion resistance of the seam and its heat resistance;
• minimum level of toxic substances released during welding.

Rutile-coated electrodes meet all these properties, and therefore are the most common when welding various types of steel.

The welding electrode consists of two parts. The core of the electrode is a metal rod made of a certain material. A special coating is applied to this rod, which significantly affects the welding process. The main task of powder coating is to protect the weld pool from the harmful effects of oxygen.

SV-08 or SV-08A wire, which has a low carbon content, is used as an additive for rutile-coated electrodes.

High-quality electrodes must be dry and free of mechanical damage. Therefore, it is necessary to store welding rods in a dry and warm place. When dampness occurs, rutile-coated welding electrodes are dried in special ovens. At home, you can use ovens for this purpose.

Chemical composition of electrode coating

A specific brand of electrodes for effectively connecting metal structures is selected depending on the protective coating of the additive. The most common are four types of coating:

• the main coating contains titanium, ferromanganese, quartz sand and smelting spar;
• oxides of manganese, iron and silica are part of the acid coating;
• electrodes with rutile coating contain about 50% titanium dioxide (rutile);
• The composition of the cellulose coating includes talc, resin of organic origin, cellulose and various ferroalloys.

The chemical composition of rutile electrodes contains a number of additional components, which are distributed in the following ratio:

• dextrin – 3%;
• magnesite – 10%;
• ferromanganese – 15%;
• feldspar – 25%;
• rutile – 47%.

Of course, the percentage of components included in rutile-coated welding electrodes may vary slightly depending on the manufacturer.

The choice of the necessary consumables for high-quality performance of electric manual arc welding depends on the positive properties of the electrodes used.

The main advantages of rutile-coated electrodes include the following properties:

• the gases released during the combustion of rutile electrodes are low-toxic, which almost does not harm the health of the welder;
• the ability to weld on surfaces without pre-treatment, since the components are not susceptible to moisture or rust;
• the carbon deposits that appear during welding have the properties of a semiconductor, so the electrode is ignited without first chipping the slag;
• the welding arc has a stable combustion both when operating on direct current and alternating current;
• the weld has a fine-scale structure and is therefore resistant to cracks;
• low metal spattering saves consumables;
• the ability to create a weld in any position.

The technological performance of rutile electrodes is much better than that of consumables with other coatings.

Disadvantages of rutile coating

According to experts, there are also some disadvantages of using rutile-coated electrodes, which largely relate to the technological features of the welding process.

The weaknesses of rutile electrodes include:

• the need for drying and calcining damp products;
• strict control over the value of the welding current, since increasing it significantly increases metal spattering;
• the impossibility of high-quality welding of high-carbon metals, which is mainly due to the characteristics of the product core.

Such a small number of shortcomings of rutile coating have almost no effect on the widespread use of this consumable material.

Main brands of rutile electrodes

The marking of rutile electrodes is indicated by the letter P, after the name of the material. In this case, electrodes with a rutile-cellulose coating are often found, which are classified as mixed-type consumables. In such products, part of the rutile is replaced by a cellulose component, which mainly burns out during the welding process, significantly reducing the formation of slag. With mixed electrodes it is much easier to weld in a vertical position.

Among the most popular brands of rutile-coated electrodes are the following products:

Having studied the main characteristics of these electrodes, it is not difficult to select consumables to perform a specific task.

Electrodes MR-3

These electrodes are considered the most common for welding work. The main advantages of MP-3 electrodes are as follows:

• ease of seam formation in various positions;
• stable arc burning;
• the ability to weld in various modes;
• low percentage of metal loss during spattering.

Electrodes are widely used both for high-quality welding and deposition of metal onto rubbing components of units. For effective use of products, it is necessary to pre-calcinate them at a temperature of 160℃.

Electrodes OK 46.00

Electrodes are produced by a Swedish concern, which has branches in Russia.

OK 46.00 electrodes have the following positive properties:

• the ability to weld wet surfaces;
• the weld has high strength;
• calcination of electrodes is carried out at low temperature (80℃);
• high arc stability is achieved at low current.

Remember that rutile electrodes are used most effectively when welding low-carbon steels, but in some cases joining non-ferrous metals is also possible. Many brands of rutile electrodes are often used by inexperienced welders, and the connection is characterized by a high quality weld.

Source: https://FB.ru/article/469131/luchshie-marki-elektrodov-s-rutilovyim-pokryitiem-osobennosti-i-primenenie

Rutile electrodes

The choice of electrodes is quite wide, so it is necessary to select the most optimal options for various workpieces. That is why it is worth looking not only at the types of electrodes, but also at the welding wire contained in their composition and at the coating.

Rutile coating on electrodes can often be found in welding applications, they are considered the most common of all. The most important feature of this type of tool is that the electrode consists of 50% rutile concentrate. Therefore, metal seams begin to resemble semi-quiet and calm steel in appearance and properties.

The seams are strong and of very high quality, they do not form cracks or damage.

Rutile coated electrodes

Electrodes often contain a variety of carbonates, rutile or aluminosilicate materials. The greater the number of them in the composition, the less oxygen and silicon will be in the finished seam after all the work performed.

Such coatings on products make the material much more viscous, because the alkalinity of the slag becomes higher. This prevents the formation of hot cracks and damage. When using this type of material, you first need to thoroughly dry it for about 60 minutes at a temperature of 200 degrees.

If the temperature is higher and the time is longer, pores may form during welding.

Rutile electrodes have many advantages, because they are able to make high-quality welding, even if the metal has rust or damage, if the arc changes its size during welding, or other unpleasant situations occur. Also, the electrodes light up perfectly not only for the first time, but also during further work. The arc burns stably, it does not change its pressure and direction.

It can be used with any type of current. Whether it is constant or variable. The coating makes the combustion dense, so the metal does not splash. To reduce carbon, iron powder is added to the coating, which makes it possible to virtually eliminate cracks during welding. Such materials have found their application in various types of steel.

It is not advisable to use these tools at elevated temperatures.

Positive sides

1. electrodes with rutile coating perfectly protect against adverse external influences and other factors, while the seam remains of the highest quality;
2. the coating ensures stability during arc burning;
3. you can use the tool in all positions;
4. if you properly prepare for welding work, you can completely eliminate the appearance of cracks and minor damage;
5. The impact strength of the metal increases significantly.

Negative sides

1. You must first carefully prepare for working with electrodes, dry and calcine them at a precise temperature and time interval;
2. interacts with metals in a low range, because it is customary to use it for various types of steel;
3. it is necessary to constantly monitor the accuracy of the modes so that the electrodes operate correctly;
4. After calcination, you need to wait a day before using the element.

Properties and composition of electrodes

Rutile-coated electrodes differ in their composition and characteristics. However, they all have average composition indicators that can be found in any type of product. Typically it consists of:

1. 48% rutile;
2. 30% feldspar;
3. 15% ferromanganese;
4. 15% magnesite;
5. 2% dextrin.

In most cases, the amount of coating is approximately half that of the electrode rod itself. The mass of the coating is often half the mass of the electrode rod.

Characteristics

Rutile coated welding electrodes have the same properties that the coating provides as well as those that the inner rod material can provide.

Welding with rutile electrodes

When welding with rutile-coated electrodes, the process does not cause any particular problems and takes place in a minimum amount of time. This is why professionals in most cases choose electrodes of this type. It is necessary to take into account not only the composition of the coating itself, but also the composition of the rod.

Typically these qualities should be the same as the metal being welded. Most manufacturers create materials that create a weld metal similar to structural steel. It is also recommended to pay attention to the thickness of the product. This is very important, because not all brands have thin electrodes.

The thickness should be the same as the thickness of the metal, this will be the perfect combination.

Important! In some cases, in order to achieve the required properties, it is recommended to use an additional flux that will help cope with an unforeseen situation.

How are rutile coated electrodes used?

Any electrodes with rutile coating have their own characteristics and characteristics. However, they are all directly dependent on the diameter size.

The most important nuance in the use of electrodes of this sample is the need for preliminary preparation of the material for work. It is necessary to dry and warm the electrode for the required amount of time at a high temperature, and it can only be used after 24 hours.

Source: https://svarkagid.com/rutilovye-jelektrody/

Description: advantages and disadvantages

Rutile electrodes, like many others, consist of a metal core and a rutile electrode coating. They are used for manual arc welding, where direct or alternating current is used. Rutile-coated electrodes differ from others in that their coating includes the natural mineral rutile. This mineral has a beneficial effect on the formation of the weld seam and protects the weld pool. Rutile electrodes are marked using the letter “P”.

Rutile-coated electrodes differ from others in the following respects:

• due to the use of titanium oxide (from which the mineral rutile is obtained), the harmful effects on the respiratory system are reduced;
• arc ignition is faster and easier;
• arc burning is stable;
• During spattering, a small amount of metal is lost;
• slag is removed from the weld more easily and quickly;
• the rutile coating of the electrodes effectively protects the weld pool from oxygen entering it, which leads to a reduction in the formation of pores;
• good resistance of seams to tearing and fracture;
• Welding with rutile electrodes can be carried out when working in any spatial position.

Rutile rods provide high quality welding even when scale and rust are present on the surface of the metal being welded. When changing the length of the arc, a high-quality connection is still obtained. Stable arc burning is ensured even with sudden movements.

The coating, in turn, prevents spattering, which is a big plus when welding ceiling and vertical seams. Iron powder can be added to the coating to increase the mass of the welded metal and prevent the occurrence of cracks.

The rods are suitable for working with low-alloy and low-carbon steels.

Despite the listed advantages, this type of rods also has disadvantages:

• before work it is necessary to carry out preparations such as drying and calcination;
• the rods are only suitable for working with low-alloy and low-carbon steels;
• during calcination, electrodes can be used only after 24 hours;
• It is necessary to maintain the accuracy of the modes, otherwise the properties of the electrodes deteriorate.

Chemical composition

Rutile welding electrodes contain the following elements in their coating: rutile - 48%, feldspar - 30%, ferromanganese - 15%, magnesite - 15%, dextrin - 2%. The mass of the coating is usually two times lower than the mass of the metal rod.

Some brands of rutile electrodes

Today there are a huge number of brands of electrodes on the market. Rutiles are no exception. Below are some brands of electrodes of this type.

Electrodes mgm 50k

Rods of this brand are used for manual arc welding. They have high welding and technological properties, which ensures a high-quality durable seam. There is little slag and it separates easily. Rods of the MGM-50K brand can be used when working with dirty and rusty metal, which is not possible for many other types of electrodes. The arc burning is soft and even.

Electrodes brand aws e6013

Rods of this brand are used to work with low-carbon steel on alternating and direct current. By maintaining a stable arc, good processability of the process is ensured. Like rods of the MGM 50k brand, electrodes of the aws e6013 type can be used when working in any spatial position. The slag has fairly good fluidity, which has a beneficial effect on protecting the weld pool from harmful inclusions and on the ease of removing slag from the seam.

Source: https://svarkaed.ru/rashodnye-materialy/elektrody/elektrody-s-rutilovym-pokrytiem.html

Conventional rutile electrodes: what are they?

Electric and gas welding has become widespread in industry. Each type has specific advantages, but also has some negative qualities. Various consumables are used for the welding process. Rutile electrodes are no exception.

Features of the material

The welding process cannot take place without a welding electrode. A specific type of electrode has been developed for each type of welding.

The welding electrode itself is made of two parts. This is its core and corresponding coating. The core is made of metal and coated with a special powder, which is applied evenly. The composition of the coating largely influences the quality indicators of the welding process; it determines what material can be welded with a given electrode.

Recently, an electrode with a special coating called rutile has become very popular among welders. What are rutile electrodes? The coating is mainly made of titanium oxide and has great advantages over others. This is due to several reasons.

First of all, the coating does not emit toxic gases. This is very important as it is directly related to the health of the worker. Such electrodes make it possible to significantly reduce the time of the welding process. Materials with a rutile coating can be used for work in a vertical plane.

When welding various types of steel, it is necessary to take into account the level of technological indicators of the electrodes:

• welding in space;
• type of welding current;
• performance;
• the possibility of pores appearing;
• presence of hydrogen;
• appearance of cracks.

All of the above characteristics must be taken into account when choosing the brand of electrode. This greatly depends on the coating used. They can be:

• cellulose;
• sour;
• mixed;
• rutile.

Let's consider welding electrodes that have a rutile coating. The basis of this coating is rutile concentrate, of which more than 50%. The seam, which is obtained after welding with a rutile electrode, consists of low-carbon steel. The resulting metal seam is highly resistant to cracking when compared with similar acid-coated electrodes.

The main parameters of a weld produced with rutile electrodes are reminiscent of welding carried out with E42 electrodes. This species is endowed with low sensitivity to the formation of pores when the arc length changes. The electrodes are not sensitive when welding a watery surface or need to weld an acidic surface.

Positive qualities of rutile electrodes

If we compare them with similar species, we can highlight various positive qualities:

1. Gas emissions are non-toxic. Cause minimal harm to the welder's health.
2. When operating with alternating current, a stable and strong arc is maintained.
3. In case of spattering, small losses of metal are observed.
4. The slag crust is easily separated.
5. High-quality seam formation.

When the coating has a lot of carbonates, the alkalinity of the slag increases. As a result, the deposited metal receives a small amount of silicon, and a low oxygen content is detected. The impact strength increases, the durability of the metal increases, and the formation of cracks is reduced to zero.

In the case of high humidity of coatings, a small amount of hydrogen is observed in the metal seam, and the formation of pores is practically minimized.

Due to the presence of TiO2 in rutile coated electrodes, they are able to re-ignite the arc with ease.

Moreover, this process does not require removing the film from the electrode crater, since with a large amount of TiO2 it has the properties of semiconductor conductivity. It is capable of lighting an arc without its rod coming into contact with the metal being welded.

This positive quality of the rutile coating makes it possible to perform work with short seams, in which it is necessary to interrupt the arc very often.

To carry out welding work, you can only use high-quality rutile electrodes that have been dried for more than 24 hours. If they were calcined at high temperatures, pores may appear. Their appearance may be associated with an increase in current strength when welding with T-seams is performed, when thin metal is being welded and the use of large electrodes is required.

When welding steel that has scale, such electrodes do not form pores. They are endowed with high resistance to crack formation when compared with similar electrodes with an acidic coating.

Basically, this type has technological indicators that are much better than those of electrodes with a different coating. The use of rutile provides excellent arc consistency when welding with direct electric current.

The electrodes are distinguished by low spattering and easy separation of slag formations. This type is considered the best for welding work on the ceiling, as well as in the vertical plane. This simplicity arises because this type of coating, during melting, begins to form titanium compounds that instantly appear on the surface, floating out of the molten bath.

In addition, such titanium coatings greatly increase the viscosity of the slag, especially when the temperature drops. These slags are called “short”.

Technological properties of rutile electrodes:

• ease of arc ignition;
• minimal formation of pores at the time of ignition;
• high resistance to fatigue characteristics of welded joints.

Due to the high content of metal powder in rutile coatings, the amount of carbon in the weld seam is reduced, and sulfur is distributed more uniformly.

Source: https://tools.adstores.ru/article/obychnye-rutilovye-elektrody-chto-eto-takoe