随着塑料工业的发展,塑料制品日益趋向大型或超小型,复杂、精密品种越来越多,更新换代越来越快,因而对塑料模具钢的要求也越来越高,要求它具有高韧性、优良的热处理性、热加工性,以及较好的切割性能、磨削加工、抛光研磨性、光刻性等,同时还需较低的成本。 近年来我们在塑料模具上采用了时效硬化钢、易切削预硬钢等,从去年 With the development of plastic industry, plastic products increasingly tend to large or ultra-small, complex, more sophisticated varieties, replacement faster and faster, so the requirements of plastic mold steel is also higher and higher, requiring it to have high toughness , Excellent heat treatment, hot workability, as well as better cutting performance, grinding, polishing, lithography, etc., at the same time require a lower cost. In recent years, we used in the plastic mold aging hardened steel, easy cutting pre-hardened steel, from last year