THE DEVELOPMENT STATUS OF HOT FORGING DIE STEEL IN CHINA
China's mold industry has a large scale,high annual output value,and huge market potential.However,due to its late start,its products are mainly in the middle and low level,and large,precision,and complex molds still heavily rely on imports.Hot forging dies are an important branch of mold steel,and their products are mainly divided into three categories:medium carbon low alloy hot work die steel,chromium based medium alloy hot work die steel,and improved hot work die steel.The temperature range of use covers 300～700 ℃,and they are widely used in the automotive and mechanical manufacturing industries.Briefly introduced the development overview of domestic hot forging die steel;Analyzed the usage conditions,failure modes,and performance requirements of hot forging die steel;Based on the usage and alloying characteristics of domestic molds,this provides a reference basis for the selection of materials and product research and development of hot forging die steel.At the same time,the design and forming situation of alloying elements such as W,Mo,V,and Co are discussed,and it is pointed out that improving the strength,toughness,and wear resistance of hot forging die steel through heat treatment process is the development trend of hot forging die steel.
hot forging die steeldevelopment trendsresearch status
万方数据
维普
