发明名称 |
Method and apparatus for molding hollow articles |
摘要 |
A method of rotationally molding hollow articles from cross-linkable polymeric material wherein the mold and molding material are simultaneously revolved about two nonparallel axes while being heated to fuse and cross-link polymeric material. When the polymeric material is partially cross-linked the mold containing the hollow article is opened at at least one location to admit heated air circulated therethrough to facilitate cross-linking of the inner portion of the molded tubular article and produce a smooth inner surface therein. Also disclosed is apparatus for performing the molding method of the invention.
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申请公布号 |
US4690632(A) |
申请公布日期 |
1987.09.01 |
申请号 |
US19850743131 |
申请日期 |
1985.06.10 |
申请人 |
PHILLIPS PETROLEUM COMPANY |
发明人 |
CARROW, GUY E. |
分类号 |
B29C35/04;B29C41/06;B29C41/46;(IPC1-7):B29C39/26 |
主分类号 |
B29C35/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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