15-year precision mould making

     The surface treatment of mold parts is to change the surface of the mold parts, chemical composition, microstructure and stress state by surface coating, surface modification or composite processing technology to obtain the system engineering of the surface properties.
     Nitriding process has gas nitriding, ion nitriding, liquid nitriding, etc.. Each kind of nitriding method, there are several kinds of nitriding technology, can adapt to different steel grades and different workpieces.
     From the surface treatment method, it can be divided into: chemical method, physical method, physical-chemical method and mechanical method. Although the new processing technology for improving the surface performance of the mold parts continues to appear, but the application of the mold parts manufacturing is more widely used in the process of nitriding, carburizing and hardening film deposition. As the nitriding technology can make the mold parts surface with good performance, and nitriding process and the quenching process of the mould parts steel have good coordination, and the nitriding temperature is low, and it is not necessary to quickly cool after nitriding. So nitriding technology is relatively early used for surface treatment of mold parts and is also the most widely used.