Mold surface treatment technology

　　Die on the job in addition to the substrate with a high enough strength and toughness of reasonable match, the surface properties of mould is very important for the performance and service life.

　　Performance refers to: the surface wear resistance, corrosion resistance, friction coefficient, fatigue performance, etc. The improvement of the performance, to improve and improve of relying on a substrate material is very limited, also not economic, and through the surface processing technology, often can get twice the result with half the effort, which is surface treatment technology has been developed rapidly.

　　Mold surface treatment technology, is through the surface coating, surface modification, or composite processing technology, mould surface morphology, chemical composition, structure and stress state, in order to obtain the required surface performance of the system engineering.

　　从表面处理的方式上，又可分为:化学方法、物理方法、物理化学方法和机械方法。虽然旨在提高模具表面性能新的处理技术不断涌现，但在模具制造中应用较多的主要是渗氮、渗碳和硬化膜沉积。