Shanghai Daoqin Plastics Co., Ltd.

        塑化 plant/unit generally has overall machine 构. in injection molding machine screw nozzle, screw and machine 筒时, 首先应 will injection molding base/seat screw 拧松, make its and 原 位置偏转一定角 degree, make injection molding base/seat machine 筒轴线避开 clamping plant/unit 轴线, 以利于 injection molding machine screw, machine 筒 拆装 and repair.

        a. injection molding machine screw nozzle 拆卸

         if machine inner has material, add hot to temperature degree, using/adopting heat stabilized property high polyolefin resin or machine specialized material, separation high speed 清洗, amount will 剩余熔 material 排出, can 进入拆卸工 as, due to nozzle 部位 残余 material is can can full 部排出, add hot nozzle or machine 筒头部, again nozzle 拆卸.

         injection molding machine screw nozzle rise temperature rear, use specialized 锤敲击 make 之松动, 螺栓不宜 full 部松脱, in 松至2/3时 light light 敲击, internal gas 体放出 rear, again will nozzle lower.

         injection molding machine screw nozzle internal 清理应 in high temperature lower hot 进行, from nozzle 孔取出 runner in 残余熔 material. method is nozzle toward internal demolding agent, from nozzle 螺纹一侧 toward material material and inner 壁壁面间滴渗 demolding agent, from make material material and inner 壁脱离, from nozzle in material material.

        b. injection molding machine screw nozzle maintenance repair

         nozzle and mold sleeve/set 接触部 separation in production in 若出现 mono 侧接触 or defect 时, front 端球形R部 separation 会出现 deformation, formed melt 逃逸 沟槽, generate nozzle material, and 口径部 separation 也会出现 deformation, 故出现溢 material and 时检查修理.

        c.应定时检查 nozzle 螺纹部 separation good and machine 筒一侧 密封面情况, 若发现 abrasion loss or 腐蚀严 heavy, and more 换.

        d.检查 injection molding machine screw nozzle internal 通道情况. for injection molding can injection shot material strip/profile surface quality, from nozzle inner 卸出 残余熔 material more can again nozzle inner runner 状况. can analysis material in nozzle inner amount and temperature degree distribution 情况.