Stainless steel (popularly just "stainless steel") is a special iron-carbon alloy, which is the most popular among all types of steel. Advantages of stainless steel - high resistance to corrosion, surface smoothness, hygiene, strength, manufacturability. But it happens that this type of steel fails, and it becomes necessary to weld it.
It is necessary
Certain qualifications for working with welding machines so that this process takes place quickly, efficiently and without harm to anyone
Instructions
Step 1
Cook stainless steel using a welder and straightener, but not a simple one, but a rectifier with a choke. The usual one will not work absolutely, because with it the process will go harder and turn into a continuous torment, so spare your nerves and take what you need. Also, for welding stainless steel, you will need special electrodes, preferably of good quality, otherwise the whole process will be ruined. It can also be black electrodes, but in this case, problems with the seams can arise. Better to cook stainless steel with argon. If you do not have the equipment for this option, then go to step 2.
Step 2
Weld in a preheated state at a temperature of about 2000 degrees, carefully making sure that the heating of the stainless steel during welding is minimal. If we compare, then a more acceptable result is obtained with electric arc than with gas welding. After the work done, heat the connection to 7200-7800 degrees and then cool it very quickly. If you do not have the equipment for this option, then go to step 3.
Step 3
Cook stainless steel at high speed and very fast cooling, which can most often be done with cooling or copper and weld pads. Previously, the product should be subjected to "hardening" 1050-1150 degrees, followed by instant cooling. If you do not have the equipment for this option, then go to step 4.
Step 4
Preheat stainless steel to 2500-3500 degrees before welding. This will avoid the appearance of cracks and rupture of welded joints. Use austenitic steel as electrodes, which forms a tough weld. The main thing is to do everything carefully, calmly and measuredly, and then the probability of errors and failures during welding will be minimal.
