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1.大型塑料模具钢该成果系统地完成了大型塑料模具钢 P20的物理、力学、工艺性能的测定,研究了钢的化学成分范围的波动对钢材组织和力学性能的影响,为制定冶金生产工艺和模具的设计、制造、使用提供理论依据。该模具钢试制1000多吨,制造了电视机外壳、收录机外壳、洗衣机面板及盖等大型塑料模具,证明P20钢的开发,为大型精密、长寿命塑料模具国产化提供了重要条件,从而顶替进口,争取出口,节汇、创
1. Large-scale plastic mold steel The achievement of the system completed a large plastic mold steel P20 physical, mechanical, technical performance measurement, the chemical composition of the steel fluctuations in the impact on the steel structure and mechanical properties, for the development of metallurgical production process And die design, manufacture, use to provide a theoretical basis. The die steel trial production of more than 1,000 tons, the manufacture of the TV case, tape recorder shell, washing machine panels and covers and other large plastic mold to prove the development of P20 steel, large-scale precision, long life plastic mold localization provided an important condition to replace the import , For export, section exchange, record