发明名称 |
METHOD AND DEVICE FOR POURING MOLTEN METAL IN VACUUM MOLDING AND CASTING |
摘要 |
A pouring method and a device in a vacuum sealed process to produce a thin-wall cast by using a mold framing for the a vacuum sealed process, and a as-cast product using the pouring method are provided. The pouring method comprises the steps of: sealingly covering the surface of a pattern plate by a shielding member; placing a mold framing on the shielding member and then putting a fill that does not include any binder in the mold framing; sealingly covering an upper surface of the fill and then evacuating an inside of the mold framing to suck the shielding member to the fill to shape the shielding member; removing the pattern plate from the shielding member, thereby forming a mold half that has a molding surface; forming another mold half in a similar way and mating the mold halves to define a molding cavity; pouring molten metal in the molding cavity; and releasing the negative pressure in the mold framing to take out a as-cast product, and further comprises the step of decompressing the molding cavity before pouring molten metal in the mated mold.
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申请公布号 |
EP1731242(A1) |
申请公布日期 |
2006.12.13 |
申请号 |
EP20050727259 |
申请日期 |
2005.04.01 |
申请人 |
SINTOKOGIO, LTD. |
发明人 |
MAKINO, HIROYASU;TOMITA, TAKETOSHI;OBA, TAKAFUMI;SUZUKI, HIROAKI;MIZUNO, KENJI;ANDO, TOSHIAKI;ENOMOTO, YOSHINOBU;INOUE, TAKAO;TAKEDA, SHIZUO |
分类号 |
B22C9/03;B22C9/00;B22C21/01;B22D18/04;B22D18/06;B22D23/06 |
主分类号 |
B22C9/03 |
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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