Shanghai Daoqin Plastics Co., Ltd.

         plastics injection mold is in has plastics mold in use most mold, can molding complex high degree plastics products. is coarse introduction lower.

         design mold soft parts 也越 越 more, large more already very less use 铅笔 绘 made mold 图.

         design 时, if has product 图, in complex mold in very difficult soft parts made long 处. product made good rear 存底, again utilizing dimensions or ratio/proportion shrink 放 生 formed made as 图形. 图纸保存也 is important, most methods is printing can long time 保存, is can 修改;保存 in soft in is has 保障, can can 明天就出""未格式化" and other 提示; hard is easy consumption product, 随时出 issues; if has machine most good, in light upper can;现 in 网络也 is provide.

         make 你 图纸 can in world 任何 方, 象myspace and other hard property can stability, as easy, 300M 空间任你 use, 不 国 inner use hard also is good, 你明明存 东西, it 却以" data 库连接错误" and other 拒绝承认.

        既然 is structure, that plastics in processing shrinkage direction is polymer separation in force function lower orientation property and cooling shrinkage has 关, in flow direction upper shrinkage need ratio its direction upper shrinkage more. product shrinkage products 形状, gate, hot cold shrink, temperature degree, holding pressure time and internal stress and other factors has 关. usually upper provide shrinkage rate scope/range relatively 广, in application in is product thick, structure and injection molding temperature degree pressure large small and orientation property. generally product if has 芯子支撑, shrinkage versus need large. plastics injection molding mold basic separation is and 动模.

         in injection molding machine injection 头一边 belt/tape gate sleeve/set is 静模, generally has gate sleeve/set, sheet/plate, sheet/plate formed, simple mold (especially is 静模没 has mold)也 can use sheet/plate, use thick 一点 模 sheet/plate can. gate sleeve/set generally is standards parts, remove non causes, 不建议取消. gate sleeve/set use has 利于安装 mold, more 换方便, use 自己抛 light. has mold gate sleeve/set can use or use degree 线割割 formed. separation mold must demolding 时, also add upper demolding machine 构. structure generally is sheet/plate, 动模靠 sheet/plate, demolding machine and and machine solid sheet/plate.

         gate 直接关系 to parts 美观, gate design good 话, easy generate defect. in has retardant 挡 情况 lower very easy generate type 流. for/regarding requirements high product, also design and gas. 溢流处 can use 顶杆, need in sheet/plate upper has flash, 才不至于 effect/influence mold lifespan.

         demolding machine in remove material 杆, also has 回位杆, separation mold also need increase elastic achieve 例如自动 demolding and other function. also has 导柱, cooling water 孔, runner and other is can less mold basic structure. 当然, mold also has box/case, 斜导柱 and other. is product design mold 时, need setting mold basic structure dimensions material, add fast mold manufacturing speed degree. complex product 应先绘 made good product 图, again good mold dimensions. in mold basic upper need hot 处理, add high mold hardness, improve/increase mold use lifespan. in hot front, for sheet/plate 进行初步 processing: good 导柱孔, 回位孔(动模), type 腔孔, filament 孔, gate sleeve/set 孔(静模), material 孔(动模), cooling water and other, good runner, type 腔, has mold also good box/case and other. in precision mold sheet/plate generally use Cr12, Cr12Mov and 一 专业 mold 钢,Cr12 and other hardness can high, in HRC60 degree 时经常 cracking, sheet/plate commonly used hardness generally is HRC55 degree left right. hardness can in HRC58 above. if material is 3Cr2W8v, manufacturing rear again nitrogen 化处理 surface hardness, hardness is HRC58 above, nitrogen 化层应越 thick good.

         design plastics injection mold need for plastics has understanding, plastics main/primary formed separation is polymer. 如我们常说 ABS plastics is acrylonitrile, butadiene, styrene types mono using/adopting emulsion, or polymerization method production, make its tool has types mono excellent property can and can property, in temperature degree and pressure lower injection to mold type 腔, generate flow deformation, obtain type 腔形状, holding pressure cooling rear ejection formed plastics product. polymer separation generally 呈链状 structure, type separation and type separation is is thermoplastic property plastics, can add hot cooling processing, add hot more separation 子发生 crosslinked reaction, formed 网状 体 type separation structure plastics usually is 一此次 property, can heavy injection processing, is hot solid property plastics.