Shanghai Daoqin Plastics Co., Ltd.

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.