Many novice welders are wondering which electrodes for the inverter are better to choose. After all, this equipment is most often used by home craftsmen. In general, welding inverters supplanted transformer units that were previously used quite a while ago. This is due to the fact that the inverter is easy to operate, inexpensive, in addition, it can be used to quickly weld metal parts and structures.
Such equipment is commonly used in arc welding. Inverters are characterized by constant stability and welding current indicators, which provides ultra-strong connection due to the high quality of the seam. An electrode acts as one of the main components of the described welding . These are metal rods that are necessary for supplying current to the welding zone. In this case, it should be borne in mind that welding units are represented by different types. Therefore, they require different electrodes.
Which electrodes to choose
If you, too, were among those who wondered about which electrodes are best for the inverter, then you should familiarize yourself with the information presented below. The melting type electrodes used in inverter and generally arc welding are made of welding wire, in the process of which state standards of 1970 are used.
According to GOST 2246, electrodes for inverter welding are classified into:
- alloyed;
- carbon
- highly alloyed.
The first are made of the following types of wire:
- Sv-08Kh3G2SM.
- Sv-08KhN2GMTA.
- SV-08HGSMFA.
When deciding which electrodes are best for inverter welding, you should become more familiar with carbon rods, which are made of wire Sv-08 and Sv-08AA, etc. High-alloyed electrodes are based on the wire Sv-30X25N16G7 and Sv-01X23N28M3D3T. However, none of these lists can be called complete. The rod is coated by pressing. It protects the weld pool from atmospheric influences and allows the arc to burn more steadily.
Beginners should be aware that electrodes can be classified into two subgroups. The first provides products designed to make a seam when connecting critical metal structures. The second subgroup is for working with conventional compounds.
For critical products, it is best to prefer UONI or ANO electrodes. If you are faced with the question of which electrodes are best for the inverter, you should also pay attention to products marked MP-3, which are designed for conventional welded joints. The SUMI electrode brand is rather moody. This is due to the fact that not every novice master will be able to work with such rods. If you do not have experience in such events, then it is better to refuse such electrodes.
Popular types of electrodes
If you can not make a choice, then you should pay attention to the most popular brands, they look like this:
- SSSI – 13/55.
- MR – 3C; MP – 3.
- ANO.
The former are popular among experienced craftsmen. These rods allow you to achieve a high-quality seam, which is true at low temperatures of external air. In this case, the density indicators remain optimal.
When deciding which electrodes are best for the inverter, it is worth paying special attention to the rods MP – 3C, which are used when it is necessary to make a weld with high quality requirements. These electrodes are used to connect elements with direct and alternating current of reverse polarity.
The most universal brand is MP-3, with its help it is possible to connect metal billets with a contaminated surface, rusty and wet structures. The most bought among Russians are ANOs. They do not require preliminary calcination, and they can be ignited without much effort. In the end, you are guaranteed to get an excellent result, even when welding is performed by an inexperienced craftsman.
Selection of electrodes for different materials
Before starting work, it is necessary to remember that products from different materials require specific electrodes. If you plan to work with high alloy or stainless steel, it is best to use the TsL-11 rods, which are manufactured according to state standards 9466–75. But if you plan to weld blanks made of carbon steel, then OZS-4 electrodes are best suited.
If you are still deciding which welding electrodes are best for the inverter, then pay attention to ANO-6. They are designed for low carbon steel products. In this case, we are talking about rods with ilmenite coating.
Mild steels are also welded by ANO-4, which have a rutile coating. Different grades of cast iron can be connected using OZCh-2. When purchasing electrodes, you should ask if they have epidemiological certificates that guarantee high-quality welding. The use of material manufactured according to state standards also indicates work safety.
For reference
An inverter is a modern equipment with which you can weld different surfaces using almost all existing types of electrodes. This is the popularity of the device. However, choosing the best welding electrodes, you should remember that not all rods provide a high-quality result and an excellent salable appearance.
In addition, safety issues when using rods that are not recommended for this type of welding will be “lame." This suggests that when choosing the rods must be guided by the recommendations of specialists.
The choice of electrodes for the apparatus "Resanta"
Regardless of which brand of apparatus will be used for welding, the electrodes are selected according to the above scheme. If you are faced with the question of which electrodes are best for the Resant 190 inverter, then you should be guided by the current settings and the diameter of the rods. The last parameter is selected depending on the thickness of the workpiece. If it is 1.5 mm or less, it is better to use argon-arc or semi-automatic welding.
Which electrodes are best for the Resanta inverter are of interest to many. Answering this question, it can be argued that the diameter of the electrode is selected, as mentioned above, according to the thickness of the steel. If it is 2 mm, then the diameter of the rod can vary from 2 to 2.5 mm. With a steel thickness of 12 mm, it is best to prefer an electrode whose diameter is 5 mm.
Additional recommendations
Choosing the best electrodes for welding, you may be faced with the need to purchase a rod for a 13 mm workpiece. In this case, the diameter of the electrode is 5 mm. It is this parameter that will be relevant for workpieces of more impressive thickness. But as for the current, it is set depending on the diameter of the electrode. Thus, based on 1 mm diameter, it is necessary to set 30 A. For a 3 mm rod, the current can reach a limit of 80-110 A. The final value will depend on the spatial position, the number of passes and the thickness of the metal.
Finally
If you have already decided for yourself which electrodes are best for the Resanta 220PN inverter, taking into account the above recommendations, you should remember that the same and exact settings do not exist today. The master sets the current parameters independently by the method of errors and samples. At high currents, you should be prepared for the fact that the weld pool is less controlled and more fluid.