Shanghai Daoqin Plastics Co., Ltd.

         core 提示: injection molding, make active in plastics products can obtain complex and complex fine 节, in maintain stability scope/range inner, maintain high quality product surface lower, achieve amount production.

         for/regarding mold manufacturing 商 说, due to mold quality 直接决定 injection molding production efficiency, 并决定 product quality, from 而决定 product add value, therefore, how to in most small cycle time inner high cooling plastics product, formed is cooling mold design and manufacturing process in key/critical amount factors, cooling in this its 间扮演 important color.

        一, cooling 摆脱传统 methods made 约

        随形 cooling principle is, in 一 统一连续 methods lower fast speed reduce parts temperature degree. injection molding parts can in cooling process in from mold in 取出, to cooling separation, rear, from mold in injection molding parts. hot 点都会延迟 injection molding parts injection molding cycle, can can 会导致 demolding rear injection molding parts warpage and 凹陷, can can loss parts surface quality.

         fast speed cooling is through cooling liquid in mold inner 通道流, will injection molding parts hot amount belt/tape 走, this type of cooling speed degree and uniform property is 由流体通道以 and cooling through it speed degree 决定.

        传统 mold inner cooling is through processing achieve. through 交叉钻孔, generate tube/pipe internal 网络, through inner 置流体插头 adjustment speed and direction, this type of methods has its property, water 路网络 形状 is has 限, therefore, cooling 通道离 mold surface 远, make cooling efficiency low. not only 如此, also 不 不面 for outer processing and assembly time, and 盲点 渠道网络 can can by 堵塞 风险. but also, in complex lower, is cooling processing, mold also need by separation formed several separation manufacturing, rear again formed block mold, this 导致 额 outer manufacturing step/link, and also shrink short mold lifespan.

        随形 cooling methods and cooling methods difference in 于, its cooling water 道 形状随 injection molding products outer 形变化, again is 直线状, 如图1 示. this type of cooling water very good solution cooling water and mold type surface 距离不一致 issues, can make injection molding products to uniform cooling, cooling efficiency more high.

        二, 3D printing manufacturing

         3D printing manufacturing make 人们摆脱 交叉钻孔 限 made. in, can design internal more mold cooling surface, tool has slip 角落, more fast amount, increase hot amount to cooling liquid efficiency; also can according to cooling requirements design different cooling 回路, in 以一致 speed degree dispersion hot, promote dispersion hot uniform property. cooling liquid through amount for mold cooling speed degree important. must design light slip 角落, decrease/reduce 沿通道 pressure loss 失.

         metal powder selection property 熔化 3D printing technology, in small 至1.4 mm cooling 通道亦 can production. powder 3D printing manufacturing technology has benefits is, powder 末熔化 belt/tape light micro surface, this type of structure increase cooling surface 积, belt/tape more good hot 效果, from improve/increase cooling efficiency, formed inner small 湍流, from achieve 通道自清洁 效果.

        三, 3D printing for injection molding product belt/tape add value

         through 3D printing manufacturing cooling injection molding mold, can achieve high 达70% injection molding mold processing efficiency. in 图2 示 例子 in, 一 冰刮刀 mold, through increase manufacturing methods processing, make injection molding time from 80秒 drop to 40秒, this injection molding parts production speed degree is 原 两倍.

         through increase manufacturing manufacturing cooling mold other main/primary advantages 包括: can molding more uniform parts products, make products defect, and 避免因 cooling speed degree non-uniform 而导致 shrink 凹痕迹. another, in development new injection molding product 时, has achieve through relatively less 迭代即 can formed product development. 当然, more more advantages also in manufacturing complex mold 时, due to decrease/reduce cooling processing and step/link, increase manufacturing methods ratio methods more fast.

        应该 attention/notes is, increase manufacturing mold surface degree high, need through rear 期 精 processing and light obtain surface degree. in this step/link, machine processing and increase manufacturing advantages formed 互补.