What are the surface treatments of precision metal shrapnel?

Precision metal shrapnel processing is a special process in which material metal or non-metal is processed into parts or semi-finished products through cold stamping of stamping dies. Stamping is a pressure processing method that uses a mold installed on a press to apply pressure to the material at room temperature to cause separation or plastic deformation to obtain the required parts. There are cold rolling method and hot rolling method for processing precision metal shrapnel. For hardware shrapnel wires with a diameter less than 8 mm, generally use the cold rolling method, and those with a diameter greater than 8 mm use the hot rolling method. Some precision metal shrapnels need to be subjected to strong pressure or shot peening after they are made, which can improve the load-bearing capacity of precision shrapnels. Precision metal shrapnel is an elastic component widely used in the machinery and electronics industries. The shrapnel can produce large elastic deformation when loaded, converting mechanical work or kinetic energy into deformation energy, and the deformation of the precision shrapnel disappears and recovers after unloading In its original state, transforming deformation energy into mechanical work or kinetic energy. 316L stainless steel can be used to make precision shrapnel. A very thin chromium oxide film is formed on the surface of the material, which can resist corrosion well. Pitting corrosion is a common form of obvious corrosion of stainless steel. Generally, it starts with needle-like corrosion. Due to corrosion, the corroded part turns black or dark brown. In most severely corrosive environments, the number and depth of pitting corrosion increases, giving the surface a corroded appearance. Under weak corrosion conditions, pitting corrosion itself cannot be significantly reduced from the surface, but corrosion may occur on the precision shrapnel to produce a thin film, and when the rust spots leak out, the surroundings may lose luster. Sensitization: Carbon (usually containing 0.08%) in steel is combined with chromium and precipitates at grain boundaries during heat treatment or during welding. The formed carbides cause chromium depletion in the grain boundaries, and an anti-corrosion film is formed on the grain boundaries while local grain boundary corrosion occurs, which reduces the stress corrosion resistance of the material. Choose, can quickly solve the urgent problem of time for you, solve the problem of stamping accuracy, and solve the problem of production quality!