发明名称 |
IMPELLER FOR SUPERCHARGER AND METHOD OF MANUFACTURING THE SAME |
摘要 |
<p>A compressor impeller and a method of manufacturing the compressor impeller. The magnesium alloy compressor impeller as a die-cast part comprises a hub shaft part, a hub disk part having a hub surface extending from the hub shaft part in the radial direction, and a plurality of vane parts disposed on the hub surface. The impeller can be manufactured by a die-cast method in which a magnesium alloy heated to a liquidus temperature or higher is supplied into molds with cavities corresponding to the shape of the impeller for a filling time of 1 sec. or shorter, a pressure of 20 MPa or higher is applied to the magnesium alloy in the cavities, and the pressurized state is maintained for a time of 1 sec. or longer.</p> |
申请公布号 |
EP1857203(A4) |
申请公布日期 |
2012.03.28 |
申请号 |
EP20060714202 |
申请日期 |
2006.02.21 |
申请人 |
HITACHI METALS, LTD.;HITACHI METALS, LTD. |
发明人 |
KUBOTA, YASUHIRO |
分类号 |
B22D17/00;B22C9/06;B22C9/28;B22D17/22;F04D29/30 |
主分类号 |
B22D17/00 |
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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