发明名称 |
Casting core fabrication apparatus |
摘要 |
A mold sand feeding tank 4 is provided for feeding mold sand S into a hollow core molding portion 2 defined by a pair of molds 1a and 1b mating with each other. A switching valve 7 is disposed within the mold sand feeding tank 4 and has a mold sand feeding opening 5, through which the mold sand S is fed into the mold sand feeding tank 4 from the outside, and a mold sand discharging opening 6, through which non-hardened mold sand Sb within the hollow core molding portion 2 is directly and externally discharged.
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申请公布号 |
US5915451(A) |
申请公布日期 |
1999.06.29 |
申请号 |
US19970914508 |
申请日期 |
1997.08.19 |
申请人 |
OSAKA SHELL INDUSTRY CO., LTD. |
发明人 |
NAKAMURA, NOBUHIRO |
分类号 |
B22C9/02;B22C9/10;B22C9/14;B22C13/12;B22C15/24;(IPC1-7):B22C13/08 |
主分类号 |
B22C9/02 |
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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