提高塑料模具寿命研究进展

Progress in Prolonging Plastic Moulds' Service Life

本文从新型塑料模具钢研制、塑料模具表面强化技术开发两方面综述了国内在提高塑料模具寿命研究方面的进展。国产新型塑料模具钢主要有预硬钢、时效硬化钢、淬火——回火钢、冷挤压成型模具钢、耐蚀钢等类型。采用新型塑料模具钢,模具的加工工艺性能改善,质量提高,寿命延长。化学镀 Ni—P、Ni—P—PTFE镀层、刷镀、硼氮碳复合渗、PECVD、PEMOCVD、可显著提高塑料模具的使用寿命。

A review is given on the progress in prolonging plastic moulds' service life by developing new domestic plastic mould steels and surface strengthening technology. The new domestic - developed plastic mould steels include prehardening steel .age hardening steel,quenching-tempering steel, cold -forming steel,and anti - corrosion steel,etc. By employing the new steels,plastic moulds' processing property is improved,quality is raised,and service life is prolonged. Electroless Ni - P and Ni-P -PTFE plating,brush plating,nitro -carbon -boronizing,PECVD,and PEMOCVD can significantly prolong plastic mould's service life.