发明名称 Directional solidification mould
摘要 <p>A mould for use in directionally solidifying a component has a casting cavity including a single crystal selector spiral which is a helical passage having not less than 1¼ and not more than 1½ turns.</p>
申请公布号 EP2165787(A1) 申请公布日期 2010.03.24
申请号 EP20090251609 申请日期 2009.06.20
申请人 ROLLS-ROYCE PLC 发明人 BOSWELL, JOHN HAROLD;LOCKWOOD, SIMON TRAVIS
分类号 B22C7/02;B22C9/04;B22C9/24;B22D25/02 主分类号 B22C7/02
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