EN
News & Knowledge
Contact Us
Mobile: +86-19279864570
Email: 40045692@qq.com
QQ: 40045692
Address: Building 5, No. 936 Guoshun Road, Nanqiao Town, Fengxian District, Shanghai
injection molding effect/influence products cooling speed rate factors
1. plastics products design 方面: main/primary is plastics products thick. products thick degree large, cooling time long. generally 而言, cooling time and plastics products thick degree formed positive ratio, or is and most large runner 直径 1.6次方 formed positive ratio. plastics products thick degree add 倍, cooling time increase 4倍.
2. mold material and its cooling methods: mold material, mold type 芯, type material and 模架材 material for cooling speed degree effect/influence very large. mold material hot 传导系数越 high, mono time inner will hot amount from plastics 传递而出 效果越佳, cooling time short.
3. cooling water tube/pipe methods: cooling water tube/pipe 越靠近 mold cavity, tube/pipe large, 数目越 more, cooling 效果越佳, cooling time short.
4. cooling liquid amount: cooling water amount large (generally to is 佳), cooling water hot for methods belt/tape hot amount 效果也越 good.
5. cooling liquid property 质: cooling liquid viscosity and hot 传导系数也会 effect/influence to mold hot 传导效果. cooling liquid viscosity low, hot 传导系数越 high, temperature degree low, cooling 效果越佳.
6. plastics selection: plastics is plastics will hot amount from hot direction cold 方传导 speed degree amount degree. plastics hot 传导系数越 high, table/sheet hot 传导效果越佳, or is plastics ratio hot low, temperature degree easy 发生变化, therefore hot amount easy dispersion 逸, hot 传导效果 relatively 佳, cooling time relatively short.
7. processing parameters setting: material temperature high, mold temperature high, ejection temperature degree low, cooling time long.
cooling system design 规则:
8. design cooling need ensure cooling uniform speed. design cooling system in 于维持 mold 适当而 has efficiency cooling. cooling use standards dimensions, 以方便 processing and 组装.
9. design cooling system 时, mold design must according to parts thick and 体积决定 lower design parameters —— cooling 孔 位置 and dimensions, long degree, types type, 孔 配置 and 连接以 and cooling liquid flow speed rate and hot property 质.
