发明名称 |
MOLD AND METHOD FOR MOLDING EXPANDABLE RESIN BEADS |
摘要 |
A mold for use in heat expanding prefoamed polystyrene beads to form a part of a predetermined shape is disclosed. The mold comprises a cavity defined by separable mold wall portions. Each mold wall portion has on its exterior a chamber into which a heating medium is introduced to heat the mold walls and also into which cooling medium is introduced to cool the walls. A plurality of nozzles are provided in the mold walls and a corresponding plurality of tubes interconnect the nozzles to a manifold located in the corresponding chamber. A pressurized heating medium is introduced to the manifold whereby the heating medium is injected into the cavity to expand prefoamed polystyrene beads in the cavity. A device is provided on the manifold for the selective removal of condensate from the manifold. The mold construction provides for an economical, readily manufactured unit. |
申请公布号 |
EP0180351(B1) |
申请公布日期 |
1990.08.29 |
申请号 |
EP19850307193 |
申请日期 |
1985.10.08 |
申请人 |
FOSECO INTERNATIONAL LIMITED |
发明人 |
CRABTREE, LARRY VICTOR |
分类号 |
B29C44/00;B29C33/00;B29C33/02;B29C44/44;B29K25/00;B29K105/04 |
主分类号 |
B29C44/00 |
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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