国产91精品天堂一区二区_日韩AV无码久久精品免费3d_一区二区不卡不卡高清在线_亚洲无码成人最新_浓毛丰满熟妇在线视频_影音先锋 欧美精品_大萫蕉伊久久综合_日韩欧美综合第一页_亚洲高清国产拍精品成人_黄色国产在线视频网站

1. Increase the taper of demoulding and polish the surface of mould.

2. Increase the number of thimbles or the diameter of thimbles.

3. Extend cooling time, reduce barrel temperature and die temperature.

1. Strengthen drying, prolong drying time or use vacuum drying.

2. Reduce barrel temperature and screw speed.

3. Reduce the injection speed and pressure.

4. Check whether there are impurities in the material and increase back pressure appropriately.

1. Increase injection pressure, speed, barrel temperature and mould temperature.

2. Change the gate position so that the fusion lines appear in the parts that are not loaded or significant; set up a cooling well to discharge the cold materials at the fusion lines.

1. Adjust the temperature control of the die to make the cooling uniform.

2. The design of the product should make the wall thickness uniform as far as possible.

3. Reduce injection pressure and pressure retention.

4. Reduce the injection speed.

1. Increase the injection speed.

2. Increase die temperature.

3. Reduce the temperature of metering room and the amount of sol.