Welding is today a popular process both in the work of professional craftsmen and home professionals. With its help, you can fix metal products, and also, if necessary, create new ones. For the quality of the seams to be decent, a minimum experience with the welding machine is required. Not the least role is played by properly selected consumables.
Therefore, many novice welders are interested in the question of which electrodes to choose for welding with an inverter. This process should be treated responsibly. The advice of experienced craftsmen will help to understand the difference between the material presented and choose the best option for each type of work.
Inverter welding characteristic
Before choosing electrodes for inverter welding, it is necessary to familiarize yourself with the features of this process. It involves the use of special equipment. The inverter is a welding machine that uses the melting method for arc welding.
The advantages of this technique in comparison with transformer varieties have long been appreciated by professional craftsmen. Inverters today are used much more often than other types of equipment. This is due to their stable welding current performance. At the same time, it turns out to be very durable and high-quality.
An inverter unit equipped with a rectifier is capable of generating a constant and alternating current voltage when turned on. If there is no line filter, only constant voltage is obtained at the output. This feature must be considered when carrying out work.
Welding pattern
Applying an inverter in your work, you need to familiarize yourself with its scheme of action. The main consumables for this equipment are electrodes. They are made in the form of a metal rod through which current approaches the working surface. Studying which electrodes are best for inverter welding machines, you should delve into the scheme of equipment operation and the process.
When operating the inverter, other devices are also involved. These include a control system, a line filter (or rectifier), a transformer, and a frequency converter. This allows the device to work with various materials. Even the same installation instance suggests using different brands of electrodes when welding various materials. Therefore, their choice must be given special attention.
The essence of the electrodes
Studying the question of which electrodes are better to choose for welding with an inverter, you should familiarize yourself with the device of this consumable. As mentioned above, the same model of the device is used in different conditions. Therefore, the electrodes have to be selected according to the working process.
Modern production predominantly releases its products in the form of consumables for manual arc welding with an inverter. This tool is made of metal wire. This rod is processed by pressing with a layer of a special coating. It is designed to ensure combustion stability, as well as protect the weld pool from exposure to atmospheric air. Materials for the production of such products are used very different. The production standards of electrodes are regulated by GOST 2246, approved back in 1970.
Varieties
When deciding how and which electrodes to choose for welding with an inverter, you must refer to the above GOST. It states that there are three types of consumables suitable for such work. The electrodes can be carbon, alloyed and highly alloyed. They are made from different types of wire.
For a beginner who is going to make inverter welding at home, it is not at all necessary to delve into such varieties. It should only be noted that all the electrodes are divided into two large groups. The first category includes materials intended for critical structures, and the second - for ordinary ones.
If welding is not involved in the process of creating load-bearing metal structures, which will be subjected to significant pressure, then simple varieties of products should be preferred. When using the inverter for household needs this will be enough.
Overview of Household Electrodes
Professional craftsmen are ready to share their experiences and talk about which electrodes are best for a welding inverter. A review of the most popular varieties will allow the beginner to choose the right variety of products. To date, the most popular electrodes for the inverter, used in domestic conditions, are ANO, MP-3. Their characteristics should be discussed in more detail.
The first type of electrodes do not cause problems during operation. They are easily ignited without requiring prior calcination. For a novice welder, ANO is the best option. MP-3 is considered a universal consumable. It allows welding even on rusty, dirty surfaces, as well as in wet conditions.
Overview of Professional Electrodes
Studying which electrodes to choose for inverter welding, for critical types of structures it is necessary to choose brands such as MR-3C, as well as UONI-13/55. They belong to the group of consumables used to create critical structures.
With increased requirements for the quality of the finished seam, it is better to give preference to the brand MP-3C. Such electrodes are used in the processing of metal by direct, alternating current of reverse polarity.
For particularly responsible work when welding supporting structures, you should choose consumables of the UONI brand. However, only a professional master can work with them. For a beginner, the capricious nature of such an electrode will be too tough. But, having learned how to handle SSSI, you can create the most durable seams with high density (and even at low temperatures).
Kind of metal
Studying which electrodes to choose for inverter welding, you need to pay attention to the type of working material. For each metal, there are different types of welding rods.
For cast iron, it is necessary to give preference to OZCH-2 type electrodes. Their production is regulated by GOST 9466 of 1975. If it is necessary to work with low carbon steel, it is better to purchase ANO-4 products with a rutile top layer or ANO-6, which have an ilmenite type of coating.
Conventional carbon steels require the use of OZS-4, MP-3S, MR-3, UONI13 / 45, ANO-21 electrodes, etc. Stainless and high alloy steels require the use of consumables for inverter welding under the TsL-11 brand.
How to choose an electrode
Having considered which electrodes are best for inverter welding, it is worth saying a few words about the features of their purchase. First of all, you need to pay attention to the composition of the coating applied to the product. This information can be found in the instructions for use. This will allow you to choose the right variety in accordance with the type of material.
Further in the accompanying documentation it is necessary to consider the deposition coefficient. Depending on the scope of work, as well as the consumption rate, the required number of electrodes is acquired.
Also, do not purchase products that do not have appropriate quality certificates. This may be unsafe. The quality of the seams when using questionable materials can differ greatly from the desired result. Therefore, the process of selection and purchase must be treated responsibly.
Having considered which electrodes to choose for welding with an inverter, even a novice master will be able to acquire the correct variety. The work will be quick and safe. The result will be good even for a beginner.