Shanghai Daoqin Plastics Co., Ltd.

         phenomenon: surface 杂质

         formed and countermeasures

        1. material temperature degree high, 导致熔 material hot separation understanding. 应适当 reduce.

        2.熔 material in material inner time long. formed separation understanding, especially is 不连续 production 时, in material in material already separation understanding, production 时未清 remove dry 净, mold cavity rear in products surface formed 杂质. and 时清洗 material 筒.

        3. raw materials in drying process in mixed 入杂质, or raw materials device tool dry 净. 应净化 raw materials and raw materials device tool.

         phenomenon: surface or 崩落

         formed and countermeasures

        1. mold type surface light degree 太差. using/adopting electroplating, abrasion light and other methods improve/increase mold surface

         light degree.

        2. machine processing process in due to 磕碰, make products surface loss 伤. attention/notes products surface.

        3. in 转换工序 运输 process in products surface. use combined 理 运输工 tool and device tool.

         phenomenon: 凹痕

         formed and countermeasures

        1. mold temperature degree high. 应适当 reduce.

        2. injection and holding pressure time short. 应适当延 long.

        3. injection pressure low. 应适当 improve/increase.

        4.熔 material temperature degree high. 应适当 reduce material temperature degree.

         phenomenon: silver streaks and bubbles

         formed and countermeasures

        1. raw materials separation drying, water separation content high. for raw materials 进行予 drying 处理.

        2.熔 material temperature degree high, material material hot separation understanding. 应适当 reduce material temperature degree.

        3. mold gas defect. increase gas or gas 沟槽, improvement mold gas property can.

        4. injection speed degree fast. 应适当 decrease slow.