Stainless steel does not rust easily because there is passivation layer surface has a layer of dense, if the surface scratch the collision destroyed the passivation layer, or some corrosive particularly strong medium existence of stainless steel surface, such as chlorine containing substances or iron material, will damage the passivation layer, leading to rust. For example, stainless steel gate, stainless steel shutter doors and so on, after being scratched, collision and impurity residues will be rust.
The following is the need to pay attention in the welding of stainless steel in the process of transportation:
A. regardless of stainless steel raw materials or processed in the transportation, loading and unloading, lifting transportation tool should be used special, avoid stainless steel and wire rope or other rigid steel contact, to avoid bumps, scratches the surface.
The processing site B. stainless steel parts to be relatively stable, the table should be matting rubber plate cushion, so as not to damage the surface of stainless steel.
C. stainless steel material, the plate should be used to cut or plasma cutting; pipe and other forms should be cut or sawn by plasma. Shear rubber cushion laid, avoiding damage to the surface; plasma cutting, cutting slag should be cleaned in time; when sawing, clamping should be padded son protection. After sawing sawing at cleaning the oil residue, etc..
D. stainless steel in the installation before welding, oil, must be carefully cleaned the surface dust and debris. Welding should as far as possible the use of argon arc welding. If the manual arc welding, application of small current welding, is strictly prohibited in the non welding arc. The ground should choose the appropriate location, firm connection, so as to avoid the electric arc burn or burn surface area is too large; welding spatter measures should be taken to prevent. When cleaning up after welding welding slag of stainless steel flat shovel, shall not use the carbon steel flat shovel. Welding seam should be carefully grinding, the weld and base material surface smooth, no slag, porosity, undercut, splash, cracks, lack of fusion defects.
E. stainless steel welding completed, should be timely to the surface cleaning.
F. stainless steel surface treatment is completed, should pay attention to the protection of finished product, avoid to touch, to avoid pollution two oil, dust and so to remind customers when ordering, stainless steel door, must pay attention to maintenance, stainless steel door generally adopts 304 stainless steel the best on the market, its corrosion resistance, anti rust ability better. All products have to take with.BACK PAGE