Shanghai Daoqin Plastics Co., Ltd.

1, anti 延: screw amount to rear, also 直线 倒退一距离, make amount ratio large, inner pressure decline, anti 止流体 from amount in 流出. 2, anti also has is injection nozzle rear 进 行预塑时, reduce nozzle runner system pressure, reduce internal stress, in mold opening easy water 口. 3, anti amount large make amount in has bubbles, 甚至造 formed formed product appearance defect. for viscosity large material material can anti amount.