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儿童 safety base/seat injection molding and blow molding process 4 large difference
plastics parts is safety base/seat very large 一 组 formed separation, plastics parts quality good bad its in 发生事故时 is 否会出现 fracture 况. base/seat plastics mold in processing process in, main/primary separation is injection molding and blow molding types process, this types industrial separation is how to 呢?我们一起 看一 lower.
1, 材质
currently upper safety base/seat main/primary separation is 2 types:
injection molding: 简称PP
blow molding: 简称HDPE5502
2, structure
injection molding:
1) injection molding parts structure comparison complex
(2) suitable structure comparison complex product
(3) due to injection molding parts has mono thick, strong/high degree generally is 不够, therefore generally in injection molding parts increase iron parts, increase base/seat strong/high degree
blow molding:
(1) blow molding parts structure comparison simple
(2) suitable for structure comparison simple product
(3) blow molding parts is di thick, strong/high degree comparison strong/high, can base/seat in 撞击时 strong/high degree
3, process
injection molding: injection molding is use injection molding machine and mold, plastics melt pressure to mold molding
blow molding: blow molding is extrusion machine plastics melt extrusion formed in again to mold upper, use pressure shrink gas in melt molding.
4, excellent disadvantages
injection molding:
advantages: (1) surface 美观
(2) base/seat function comparison more
disadvantages: (1) base/seat comparison heavy
(2) structure complex
(3) cost comparison high
blow molding:
advantages: (1) structure simple
(2) base/seat comparison light 便
(3) property ratio high
(4) plastics is in 空, can comparison good
disadvantages: (1) function comparison simple
(2) surface appearance is very 美, product 档次看起 落现 low.
