发明名称 |
Composite body molding apparatus |
摘要 |
An apparatus is provided for molding composite articles by first rotationally molding a shell-like body with a reinforcing member or frame extending through the body and supported by the walls of a mold. The hollow shell is formed of a liquid or powdered resin or other suitable material disposed in the mold per se or containing reinforcing elements which become encapsulated within the molding material. A second molding material may be injected into the hollow shell to partly or completely fill the volume interior thereof. The second material may comprise a resin containing a blowing agent which causes the resin to expand and form a cellular mass filling the hollow body or forming a shell thereagainst as the mold is rotated. The filler material may be introduced through one or more of the reinforcing members disposed within or across the mold cavity.
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申请公布号 |
US4043721(A) |
申请公布日期 |
1977.08.23 |
申请号 |
US19750547621 |
申请日期 |
1975.02.06 |
申请人 |
LEMELSON, JEROME H. |
发明人 |
LEMELSON, JEROME H. |
分类号 |
B29C33/04;B29C33/06;B29C41/04;B29C41/22;B29C41/36;B29C41/46;B29C44/04;B29C44/38;B29C45/17;(IPC1-7):B29C5/04;B29C27/00 |
主分类号 |
B29C33/04 |
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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