Shanghai Daoqin Plastics Co., Ltd.

        ① type 腔布置. according to parts structure features, dimensions degree requirements, amount large small, mold manufacturing difficult easy, mold cost and other type amount and its methods. for/regarding injection 模 说, plastics made parts degree is 3 grade and 3a grade, weight is 5克, using/adopting hard 化浇注 system, type 腔数取4-6; plastics made parts is generally degree (4-5 grade), molding material is local crystallization material, type can 取16-20; plastics made parts weight is 12-16克, type 腔数取8-12;而 weight is 50-100克 plastics made parts, type 腔数取4-8.

         for/regarding type plastics made parts type is 24-48, 16-32 and 6-10. again increase plastics made parts weight 时, very less using/adopting more mold. 7-9 grade degree plastics made parts, most more type relatively 之指出 4-5 grade degree plastics increase more 至50%.

        ②确定 separation type 面. separation type 面 位置 need has mold processing, gas, demolding and molding as, plastics made parts surface quality and other.

        ③确定浇注 system (主浇道, separation and gate 形状, 位置, large small) and gas system (排 gas methods, gas 槽位置, large small).

        ④ selection ejection methods (顶杆, tube/pipe, sheet/plate, combined ejection), 决定侧凹处理 methods, methods.

        ⑤决定 cooling, add hot methods and add hot cooling 沟槽 形状, 位置, add hot parts 安装部位.

        ⑥ according to mold material, strong/high degree or experience data, mold parts thick degree and outer dimensions, outer structure and has 连接, 定位, toward parts 位置.

        ⑦确定 main/primary molding parts, structural parts structure 形式.

        ⑧考虑 mold separation strong/high degree, molding parts as dimensions. above this issues if solution, mold structure 形式自然就 solution. this 时, 就应该 手绘 made mold structure 草图, is positive 式绘图 as good 准备.

        ⑨绘 made mold requirements according to made standards made, is requirements combined standards and 国家未规定 factory methods. in mold 总装图之 front, made 工序图, need combined made parts and process material requirements.

        由 lower 道工序 ensure dimensions, in upper 标写注明" process dimensions "字样. if molding rear remove 修理毛刺之 outer, again 不进行 other machine processing, that 么工序图就 and made parts full same. in 工序图 lower most good made parts 编号, 名称, material, material shrinkage rate, ratio/proportion and other. usually 就 工序图画 in mold 总装图 upper.