发明名称 |
LIGHTWEIGHT METAL WITH ISOLATED PORES AND ITS PRODUCTION |
摘要 |
A novel lightweight gas-metal composite is produced having isolated particle-stabilized pores. A composite of a metal matrix, e.g. aluminum, and finely divided solid stabilizer particles, e.g. silicon carbide, is heated above the liquidus temperature of the metal matrix and this is mixed such that a vortex (39) is formed. The molten composite is blanketed with a gas and during the vortex mixing, this gas is drawn into the melt to produce an expanded, viscous molten composite material containing pores which are very small, spherical-shaped and quite evenly distributed. The viscous molten composite material can be directly formed into a solid shaped product and is also capable of being remelted and formed by forming processes without destroying the integrity of the pores. The result is a lightweight expanded metal product capable of being formed into shapes to close dimensional tolerances. |
申请公布号 |
WO9203582(A1) |
申请公布日期 |
1992.03.05 |
申请号 |
WO1991CA00300 |
申请日期 |
1991.08.26 |
申请人 |
ALCAN INTERNATIONAL LIMITED |
发明人 |
SANG, HARRY;JIN, ILJOON;THOMAS, MARTIN;KENNY, LORNE, DOUGLAS |
分类号 |
B22D25/00;C22C1/08;C22C1/10 |
主分类号 |
B22D25/00 |
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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