发明公开
EP0233828A2 A method of forming dense ingots having a fine equiaxed grain structure
失效
一种用于形成具有整流后的细晶粒结构致密锭料的方法。
- 专利标题： A method of forming dense ingots having a fine equiaxed grain structure
- 专利标题（中）： 一种用于形成具有整流后的细晶粒结构致密锭料的方法。
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申请号： EP87420035.5申请日： 1987-02-06
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公开(公告)号： EP0233828A2公开(公告)日： 1987-08-26
- 发明人: Freeman William R. JR
- 申请人： HOWMET CORPORATION
- 申请人地址： 475 Steamboat Road Greenwich, CT 06830 US
- 专利权人： HOWMET CORPORATION
- 当前专利权人： HOWMET CORPORATION
- 当前专利权人地址： 475 Steamboat Road Greenwich, CT 06830 US
- 代理机构： Séraphin, Léon
- 优先权： US827541 19860210
- 主分类号： B22D27/04
- IPC分类号： B22D27/04 ; B22D27/09
摘要：
A method of forming a fine grained equiaxed ingot by melting metal and placing it in a mold (12) having a restriction (22) at the entrance disposed to solidify the metal in the entrance to the mold prior to complete solidification of the metal in the mold such that a shrinkage void (18) is formed below the entrance to the mold. The ingot is then hot isostatically pressed (HIPped) to fully densify the ingot and eliminate the shrinkage void.
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