(1) Cleaning: Black, yellow and blue scales will appear on the weld bead after welding. Cleaning it, Yunqing brand solder joint cleaning paste can remove the scale, at the same time, it can also play a passivation role and maintain the primary color of stainless steel.
(2) Protection is to form a transparent hard film on the surface, which can isolate the pollution and corrosion of stainless steel by air and water. Yunqing brand film protective liquid also contains antirust substances, which can effectively prevent metal from rusting and has outstanding slow-release effect. After beautification and protection, this product forms a very thin and transparent hard film on its surface, which has no fingerprints. The function of preventing dust from secondary pollution does not affect the texture and color of metal, and it also has outstanding rust-proof and luster-enhancing effects.
Generally, the following welding methods are adopted: 1, covered electrode arc welding 2, argon arc welding 3, flux-cored wire gas shielded welding 4, and special welding methods.