国产美女被遭强高潮网站不再|人体大胆艺术|国产自拍免费视频网站|伊相蕉75在线观看|三年在线观看免费大全哔哩哔哩|强行打扑克又疼又叫哔哩哔哩|欧美阿v高清资源不卡

Spray up roving and resin curing speed


AddTime: 2025-05-16 Print Favorites Email: liyibin@169chem.net
Spray up roving technical support

The glass fiber spray up technology is a kind of glass fiber reinforced plastic production method which is used to spray chopped glass fiber and resin on the mold and solidify. This production process has certain requirements on the curing speed of resin and the wetting performance of spray up roving. The good spay up roving will be wetted out in the resin quickly, and the poor spray up roving will not be wetted out even if the resin is cured. The white glass fiber can be seen on the surface of the product by naked eyes. There are two possible factors to make the visible white fiber. The curing speed of resin is too fast, and the infiltration of glass fiber is not good. This requires specific analysis of specific problems, but basically for these two reasons.

?

Related News