Shanghai Daoqin Plastics Co., Ltd.

         mold hot is ensure mold property can important process process, for mold manufacturing degree, mold strong/high degree, mold as lifespan, mold manufacturing cost and other has effect/influence. 20世纪80 year 代以, mold hot technology development relatively fast field/area is true hot technology, mold surface strong/high technology and mold material hard technology.

         mold true hot technology

         true hot technology is year development 起 一 types new type hot technology, it tool features, positive is mold manufacturing in need, ratio anti add hot oxidation and carbon, true gas or remove gas, remove hydrogen 脆, from improve/increase material (parts) property, tough property and fatigue strong/high degree. true add hot slow, parts inner outer temperature relatively small and other factors, true hot process formed parts deformation small and other.

         mold true hot in main applications is true cold 淬火, true gas cold and true 空回火. is maintain parts (如 mold) true add hot excellent features, cooling agent and cooling process selection and made non important, mold process main/primary using/adopting cold and gas cold. for/regarding hot rear again machine processing mold as 面, rear can can using/adopting true 空回火, especially is true 空淬火 工 parts (mold), it can improve/increase and surface quality related mechanical properties, fatigue property can, surface light degree, corrosion resistant property and other.

         hot process machine technology formed development and application, make mold can hot formed is can can. due to mold production small amount (甚至 is mono parts), more product types features, and for hot property can requirements high and 不允许出现 waste product features, also make mold can hot formed is must. outer industrial 发达国家, USA, Japan and other, in true high pressure gas 淬方面, development very fast, main/primary for target/goal is mold.

         mold surface treatment technology

         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. 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. currently in mold manufacturing in application relatively more main/primary is nitrogen, carbon and hard film 沉积.

         due to nitrogen technology can formed excellent property can surface, and nitrogen process and mold 钢 淬火 process has good property, 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.

         mold carbon is is improve/increase mold overall strong/high tough property, mold as surface tool has high strong/high degree and wear resistance. hard film technology currently relatively formed is cvd, pvd. mold upper 世纪80 year {BANNED}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.

         mold material hard technology

        自 upper 世纪70 year {BANNED}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. 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).

        我国 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.