发明授权
- 专利标题： Methods for manufacturing investment casting shells
- 专利标题（中）： 投资铸造壳的制造方法
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申请号： US10825396申请日： 2004-04-15
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公开(公告)号： US06951239B1公开(公告)日： 2005-10-04
- 发明人: Jacob A. Snyder , James T. Beals , Joshua E. Persky , Carl R. Verner , Lea D. Kennard , Dawn D. Mandich , Stephen D. Murray
- 申请人： Jacob A. Snyder , James T. Beals , Joshua E. Persky , Carl R. Verner , Lea D. Kennard , Dawn D. Mandich , Stephen D. Murray
- 申请人地址： US CT Hartford
- 专利权人： United Technologies Corporation
- 当前专利权人： United Technologies Corporation
- 当前专利权人地址： US CT Hartford
- 代理机构： Bachman & LaPointe, P.C.
- 主分类号： B22C9/04
- IPC分类号： B22C9/04 ; B22C9/10 ; B22C9/12 ; B22C13/08
摘要：
An at least two step heating process is used to strengthen the shell of an investment casting mold including a refractory metal core. The first stage may occur under otherwise oxidizing conditions at a low enough temperature to avoid substantial core oxidation. The second stage may occur under essentially non-oxidizing conditions at a higher temperature.
公开/授权文献
- US20050230078A1 METHODS FOR MANUFACTURING INVESTMENT CASTING SHELLS 公开/授权日：2005-10-20
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