Shanghai Daoqin Plastics Co., Ltd.

         extrusion debugging

        操 as 人员必 must 熟悉自己 操 as extrusion machine, need positive 确掌握 screw features, add hot and cooling control, table/sheet features, machine control mold structure and assembly and other, positive 确 掌握 extrusion process conditions, positive 确 操 as machine.

         debugging generally as steps lower:

        (1) machine front 应检查 temperature degree control is 否灵敏, table/sheet is 否失灵, cooling water is 否畅通 and other. usually using/adopting temperature degree 计, cooling water and other methods testing.

        (2) extrusion machine as will extrusion machine screw, machine and 模头进行 add hot, temperature degree rise to setting temperature degree rear, must again temperature 10 separation left right can machine, make machine separation temperature degree stability.

        (3) machine front need will 模头各部 separation 联接螺钉 and 螺栓趁 hot 拧紧. in material material by extrusion front, as 者不 站 in positive front 方, anti 止螺栓 or fracture generate 伤害事故.

        (4) extrusion 时, screw speed use slow speed, rear again add fast, anti 止启动时 载而 loss bad machine parts.

        (5) machine 时, add a small amount of material material, maintain add material 均衡, add material need attention/notes and other various table/sheet value, material material from 模头口模 extrusion upper equipment rear, can increase material amount positive extrusion.

        (6) 开始牵引时, type and 模头应 has 一定 距离以便于牵引. will water 路打开(attention/notes can will water to 模头, 否则会引起模头出 material 失常而导致断 material or 堵模), complex relatively small and more type will type cover/cap sheet/plate 打开; in extrusion material material positive rear, through already good 牵引绳 will material material 牵至牵引 machine upper. shrink short type and between 距离, cover/cap upper cover/cap sheet/plate, true 空泵, extrusion speed degree and speed degree basic balanced 时, type positive extrusion rear again will type and 模头距离 shrink to value.

        (7) 若发现 type in type 模入口端不 formed or inner viscous type inner 腔面时, can use 尖头工 tool in 首节定 type 模入口端 type formed 形部位 or inner 筋部位戳数 small 洞, make small and large gas 贯通, type 坯进定 type 模时呈开放式, 便于形 formed negative pressure, make type 坯紧紧贴附于定 type 模 模壁.

        (8) 如遇堵模(未堵死)情况, 应立即 will type rear or improve/increase speed degree, or meanwhile above types solution/scheme, rear again through process adjustment 以恢复 positive production. already 堵死实施 upper solution/scheme 无效时, 则应立即 will type rear 移, 并沿定 type 模铲断 material material, 关闭定 type water gas, reduce speed degree, will type from type in slow 拉出. if has separation type in type in, 则需拆开定 type 模, will material 彻底清 remove dry 净.

        (9) machine generally add machine material will machine inner production material extrusion 排尽, rear machine hot 拆卸模头进行清模处理.

         extrusion 模 维护

        1, in and process in or 清理不当, is loss mold main/primary causes 之一. therefore, mold and 清理应由专业人员完 formed.

        2, in 拆卸清理时应 use copper device parts.

        3, 模头拼 combined 面(密封面) can use fine or versus 砂纸予以清理.

        4, mold has assembly front, runner application versus 砂纸抛 light low coarse degree, coating thin has machine silicon ester, in long 期储存 process in decrease/reduce gas and water 份腐蚀保护 runner.

        5, in assembly process in, has 螺栓, 螺钉承载 surface and 螺纹, must coating has high temperature lubricated 脂.

        6, type in 拆卸时, attention/notes 避免碰撞;安装时, type sheet/plate 顺序号排列安装.

        7, water tank in day 常维护 in ensure type block rear 四侧留 has adjustment active 动空间.

         extrusion 模 储存

        1, mold 应贮存 in drying, 清洁通风 库房 inner, and product 同库存放;

        2, mold use 完毕, must dry 净, heavy new good. rear, 存入库房;

        3, mold 应存放 in specialized mold 储存架 upper, ensure safety, 存取方便.