发明名称 |
Method for producing aluminum material for use as electronic material. |
摘要 |
<p>An aluminum material for use as an electronic material is produced by a method comprising the steps of melting aluminum inevitably containing U and Th to obtain molten aluminum, holding the molten aluminum heated at a temperature above the solidification temperature thereof, and immersing a hollow rotary cooling member in the molten aluminum and rotating the cooling member in the molten aluminum while maintaining the surface of the cooling member at a temperature lower than the solidification temperature by supplying a cooling fluid to the interior of the cooling member to cause aluminum to crystallize out on the surface of the cooling member with reduced U and Th contents. <IMAGE></p> |
申请公布号 |
EP0459303(A1) |
申请公布日期 |
1991.12.04 |
申请号 |
EP19910108378 |
申请日期 |
1991.05.23 |
申请人 |
SHOWA ALUMINUM CORPORATION |
发明人 |
TOYODA, KAZUO;MAEDA, MASAO |
分类号 |
C22B9/02;C22B21/06 |
主分类号 |
C22B9/02 |
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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