HPM7新型预硬塑料模钢 化学成份 CHEMICAL COMPOSITION 专利申请中 Patent Pending Steel 出厂硬度 DELIVERY HARDNESS 预硬处理HB300-330 Prehardened HB300-330 特征 FEATURES 切削性、焊接性优越钢材。 Good machinability & weldability steels. 洁净度高、具有良好的镜面精加 工性能。 Good polishabiluty due to lower volume fractions of nonmetallic inclusions 严格挑选化学成份，经新技术特 别提炼后，能提高钢材本质伸延 性、韧性、及溶接性，不容易爆 裂。
（尤其经而wire-cut后一些薄位 及较难度设计位都不会因碳的氧 化而变得太脆弱，容易爆裂。） Selected chemical composition and new technical skill improve the quality of tensile strength, toughness, meltability of the steel.
(Especially, the oxidation from carbon created by the wire-cut will cause easy wearings cracking.) 大尺寸模具中心部位也同样有相对硬度。 Uniform hardness distribution even in large cross section mold dies because of excellent hardenability. 用途 APPLICATIONS 因设计变更，而需要焊接频繁模具。
汽车部件如尾灯、表盘。
家电如电视机体、空调机壳和电话等。
其它：大型日用品、胶卷、容器、导管等。 Freqent design changes of molds.
Automobile Parts such as Light case, Instrument Panel, Radiater grill.
Home Electronics Parts such as TV cabinets. Air Conditioner and Telephone cases.
Others:Film, Pipe, Container and Bigger plastic products.
