As we all know, die steel is widely used. With the rapid development of steel, die steel in China market has made great progress, especially in terms of service performance and service life. Die wear resistance is often an important factor in mold life. The die bears considerable compressive stress and friction force in working, which requires the die to maintain its dimensional accuracy under strong friction.

Cold working die steel

大家都知道一把好的刀是需要经常保养的，所话说就是磨，普通塑胶模具钢但是模具钢材和刀不一样。模具钢材的磨损主要是熔融磨损、氧化磨损和机械磨损三种类型。

As we all know, a good knife needs to be maintained frequently. In other words, it is grinding ordinary plastic mold steel, but the mold steel is different from the knife. The wear of die steel mainly includes melting wear, oxidation wear and mechanical wear.

为了改善模具钢材的耐磨性，就要既保持模具钢材具有高的硬度，又要保证钢中碳化物或其他硬化相的组成、形貌和分布比较合理。

In order to improve the wear resistance of die steel, it is necessary not only to keep the die steel with high hardness, but also to ensure that the composition, morphology and distribution of carbides or other hardening phases in the steel are reasonable.

冷作模具钢对于重载、高速磨损条件下服役的模具，要求模具钢材表面能形成薄而致密粘附性好的氧化膜，保持润滑作用，减少模具和工件之间产生粘咬、焊合等熔融磨损，又能减少模具表面进行氧化造成氧化磨损。所以模具的工作条件对钢的磨损有较大的影响。

Cold working die steel for heavy load, high-speed wear conditions of the die steel surface to form a thin and dense, good adhesion of oxide film, to maintain lubrication, reduce the die and workpiece between the bite, welding and other molten wear, but also to reduce the die surface oxidation caused by oxidation wear. Therefore, the working conditions of the die have a great influence on the wear of the steel.