Drawing Deep processing: It is easy to generate frictional heat, so use stainless steel with high pressure resistance and heat resistance. At the same time, the oil attached to the surface should be removed after the molding process is completed.
Welding: Before welding, rust, oil, moisture, paint, etc., which are harmful to welding, should be thoroughly removed, and electrodes suitable for steel grades should be selected. The spot welding time interval is shorter than that of carbon steel spot welding, and stainless steel brushes should be used to remove welding slag. After welding, in order to prevent local corrosion or strength reduction, the surface should be ground or cleaned.
Cutting and punching: Since stainless steel has higher strength than general materials, higher pressure is required for punching and shearing, and when the gap between the knife and the knife is accurate, poor shearing and work hardening will not occur. It is best to use plasma or laser cutting. When gas cutting or arc cutting has to be used, the heat affected zone is ground and heat treated as necessary.
Bending processing: The thin plate can be bent to 180°, but in order to reduce the crack of the curved surface, it is better to have 2 times the thickness of the plate with the same radius. A radius of 4 times the thickness of the plate is necessary, especially during welding, in order to prevent machining cracks, the surface of the welding area should be ground.
Construction and construction precautions:
In order to prevent scratches and pollutants from adhering during construction, stainless steel construction is carried out in the state of film. However, with the extension of time, the residue of the paste liquid is based on the service life of the film. When the film is removed after construction, the surface should be washed, and special stainless steel tools should be used. When cleaning utilities with general steel, in order to prevent iron filings from sticking, it should be cleaned.
Care should be taken not to let the highly corrosive magnetism and stone luxury cleaning drugs come into contact with the stainless steel surface. If they come into contact, they should be washed immediately. After the construction is completed, use neutral detergent and water to wash the cement, dust and other objects attached to the surface.
