发明授权
US5993723A Injection compression molding method 失效
注射压缩成型法

Injection compression molding method
摘要:
An injection compression molding method is characterized in that a resin is injected from a resin gate provided near a recess portion of a mold corresponding to a thick rib portion, gas is injected from the thick rib portion before the mold is closed and compressed, and thereafter the resin is made to flow back from the resin gate to an injection nozzle while the mold is closed and compressed.
公开/授权文献
信息查询
0/0