Shanghai Daoqin Plastics Co., Ltd.

        挤 pressure mold 时我们会发现,常会 has large 帽 发生,导致 this defect large 发生, generally is 模面不平导致剪切不净, in pressure 时, aluminum in 进行逐步 toward outer viscous rear formed,太空 mold according to understanding,告诉 large 家导致挤 pressure mold formed large causes has which.

        1, pressure mold 端面不平 or has loss make 锁紧面 has 缝隙, aluminum 窜流. mold loss need and 时补焊,模面一定 need 铣平.

        2, material outer 接圆太 large (模距 short),模筒锁紧面积就 small ------进 material outer 接圆同筒壁距离 positive mono 边10mm 极限不 less 于5mm,挤 pressure ratio high mold need simple use expand large separation 流腔 办 method pressure. use this 样 挤 pressure mold production upper lower left right in 心一定 need for 齐, anti 止模距 again 出现偏差.

        3, pressure mold has water 口, mold combined large, mono 位面积受 pressure value small --- small export pressure,模面跑 aluminum viscous aluminum rear 剪切不净,造 formed 模面不平. types large very difficult dry 净. attention/notes need coating again viscous aluminum,模面 aluminum is can more 次剪切掉, in upper pressure can coating 油, make 模面跑 aluminum viscous mold,剪切切 remove. to has small flash formed 功.

        4, pressure mold water dimensions small 于筒工 as dimensions,筒模闭 combined 面积就 small,也 easy loss as 面. attention/notes small machine mold to large machine mold water 口直径同 large as 面直径 large small.

        5, pressure mold thick degree 不够,挤 pressure force in sleeve/set upper. mold and sleeve/set thick degree need combined front 3 rear 1原则,即 mold 导流面 need 突出模 sleeve/set 1mm. ------模 sleeve/set 永远不直接受挤 pressure,否则,模 sleeve/set easy loss easy deformation.

        6, sleeve/set and mold combined large,间隙 inner viscous aluminum 导致剪切不净而 make 模面不平. this type of generally Common from small machine 台改装 mold.

        7, pressure ratio high, export retardant force large pressure,锁紧面不平, aluminum from 锁紧面流出. types more 数会发生闷车 phenomenon, can improve/increase rod temperature and mold temperature,筒 temperature. necessary can for sleeve/set 甚至垫 sheet/slice as add temperature rear again upper machine production, meanwhile, can decrease short rod long, decrease/reduce 定尺. aluminum rod short can pressure production need increase rod temperature, rod temperature high easy 出帽,也限 made speed degree improves.