发明名称 |
Process for preparing mold |
摘要 |
A cast article having a complicated shape of the appearance and the hollow can be obtained by forming a coating film on the surface of a pattern from a solvent-insoluble material to prepare a mold pattern, filling and hardening a molding material around the mold pattern, dissolving the pattern with a solvent, and removing the residue of dissolution and the coating film outside the mold.
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申请公布号 |
US4812278(A) |
申请公布日期 |
1989.03.14 |
申请号 |
US19870019135 |
申请日期 |
1987.02.25 |
申请人 |
HITACHI, LTD. |
发明人 |
NATORI, TATSUO;HIOKI, SUSUMU;SHIMAGUCHI, TAKASHI;YAMADA, TOSHIHIRO;WATANABE, AKIHIDE;KANEKATSU, KENSUKE |
分类号 |
B22C9/04;(IPC1-7):B29C33/38 |
主分类号 |
B22C9/04 |
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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