Shanghai Daoqin Plastics Co., Ltd.

         mold in as in, remove requirements tool has high strong/high degree and tough property combined combined outer, its surface property can for mold as property can and use lifespan important. this surface property can 指: wear resistant loss property can, corrosion resistant property can, friction coefficient, fatigue property can and other. this property can improvement, mono pure 依赖基体材 material and improve/increase is non has 限, is 不经济, through surface treatment technology, can to semi 功倍 效果, this positive is surface treatment technology to speed development causes.

         mold surface treatment technology, is through surface coating, surface modified or composite/compounding technology, mold surface 形态, chemical formed separation, structure and force 状态, obtain surface property can system engineering. from surface treatment methods upper, also can separation is: chemical methods, material methods, material chemical methods and machine methods. although in improve/increase mold surface property can new technology 不断涌现, in mold manufacturing in, application relatively more main/primary nitrogen, carbon and hard film 沉积.

        1, nitrogen

        渗 nitrogen process has gas nitrogen, 离子渗 nitrogen and liquid nitrogen and other methods. types nitrogen methods in, has dry types nitrogen technology, can different types, different parts requirements. due to nitrogen technology can formed excellent property can surface, and nitrogen process and mold 钢 淬火 process has good 协调, meanwhile, nitrogen temperature degree low, nitrogen rear 不需激烈 cooling, mold deformation small, therefore, mold surface strong/high is using/adopting nitrogen technology relatively 早, is application most 广泛.

        2, carbon

         mold carbon 目, main/primary is is improve/increase mold overall strong/high tough property, mold as surface tool has high strong/high degree and wear resistance. 由此引入 technology is, use relatively low grade material, through carbon 淬火 代替 relatively high grade 别 材 material, from reduce manufacturing cost.

        3, hard film 沉积

         hard film technology, currently relatively formed is CVD and PVD. is increase film and parts surface combined strong/high degree, in development multiple reinforcement type CVD, PVD technology.

         hard film technology most in tool (刀 tool, tool, amount tool and other) upper application, 效果极佳, multiple tool already will coating hard film as is standards process.

         mold upper 世纪80 year 代开始 using/adopting coating hard film technology. currently technology conditions lower, hard film technology (main/primary is equipment) cost relatively high, still in precision, long lifespan mold upper application, if using/adopting hot in methods, coating hard film cost large large reduce. more more mold if using/adopting this technology, can overall improve/increase mold manufacturing water 平.

        4, mold material hard technology

         mold in manufacturing process in, hot is large more mold long time use types process. upper 世纪70 year 代开始, upper 就提出预 hard 化 想 method, due to processing machine rigid degree and 切削刀 tool made 约, hard hardness method to mold use hardness, therefore, hard technology R&D investment large.

        随 processing machine and 切削刀 tool property can improve/increase, mold material hard technology development speed degree add fast, to upper 世纪80 year 代, upper industrial 发达国家 in plastics use upper use hard block ratio/proportion already to 30%(currently in 60% above), in upper 世纪90 year in rear 期开始 using/adopting hard block (main/primary use outer Imported product).

         mold material hard technology main/primary in mold material production development and 实施. through adjustment chemical formed separation and versus hot equipment, can large amount production quality stability hard block. in mold material hard technology 方面, 起步晚, small, currently also can meet/satisfy inner mold manufacturing requirements.

         using/adopting hard mold material, can mold manufacturing process, shrink short mold manufacturing cycle, improve/increase mold manufacturing degree. can 预见, processing technology 进步, hard mold material used for more more mold type type.