Shanghai Daoqin Plastics Co., Ltd.

anti 止 plastics 变 color

material material color is due to or degradation and other 启事.

（1） material material issues issues:
① material material 传染;
② material material drying good;
③ material material in material more;
④ material material degradation;
⑤ color agent separation 化;
⑥ additives separation 化.

（2） equipment issues issues:
① equipment dry 净;
② material material drying dry 净;
③景象空 gas dry 净, color agent and other in high 空, in material and other upper;
④ hot electrical 偶失灵;
⑤ temperature degree made system 失灵;
⑥ electrical retardant electrical hot 圈（ or outer add hot 拆卸）破 loss;
⑦ material in has material make material material degradation.

（3） temperature degree issues issues:
① material temperature degree high, drop it;
② nozzle temperature degree high, drop it.

（4） injection molding issues issues:
① drop screw speed;
② decrease small back pressure force;
③ decrease small clamping force;
④ drop injection pressure;
⑤ shrink short injection pressure;
⑥ shrink short full pressure 时刻;
⑦ decrease slow injection speed degree;
⑧ shrink short injection cycle.

（5） mold issues issues:
①考虑模子排 gas;
② add large gate dimensions, drop 落剪切 speed degree;
③ add large nozzle 孔, runner and separation runner dimensions;
④ remove inner type and light slip agent;
⑤ more lubricating agent.

in addition, high impact strong/high degree polystyrene (PS) and ABS如 products internal stress large, due to force color.