发明授权
- 专利标题: Aluminum alloy composite material for brazing
- 专利标题(中): 铝合金复合材料用于钎焊
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申请号: US156827申请日: 1993-11-24
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公开(公告)号: US5350436A公开(公告)日: 1994-09-27
- 发明人: Osamu Takezoe , Jun Takigawa , Tadashi Okamoto , Mituo Hashiura , Sunao Fukuda , Keizo Takeuchi , Yasuaki Isobe
- 申请人: Osamu Takezoe , Jun Takigawa , Tadashi Okamoto , Mituo Hashiura , Sunao Fukuda , Keizo Takeuchi , Yasuaki Isobe
- 申请人地址: JPX Tokyo JPX Kariya
- 专利权人: Kobe Alcoa Transportation Products Ltd.,Nippondenso Co., Ltd.
- 当前专利权人: Kobe Alcoa Transportation Products Ltd.,Nippondenso Co., Ltd.
- 当前专利权人地址: JPX Tokyo JPX Kariya
- 优先权: JPX4-337904 19921124
- 主分类号: B23K35/02
- IPC分类号: B23K35/02 ; B23K35/28 ; B32B15/01 ; F28F13/12 ; F28F21/08 ; B32B15/20
摘要:
An aluminum alloy composite material for brazing has a core member, an Al--Si filler member clad on one surface of the core member and an aluminum alloy cladding member clad on the other side of the core member. The core member is made of an aluminum alloy containing 0.3 to 1.3 wt. % of Si, 0.3 to 1.5 wt. % of Mn, 0.02 to 0.3 wt. % of Ti, and, as required, 0.3 wt. % or less of Cr and 0.2 wt. % or less of Zr, the content of Mg being restricted to 0.2 wt. % or less and the content of the Cu being restricted to 0.2 wt. % or less as an impurity. The cladding member is made of an aluminum alloy containing 0.3 to 3 wt. % of Mg, 5 wt. % or less of Zn, 0.1 to 1.0 wt. % of Si. The thickness of the core member is preferably, 2.5 times or more greater than that of the filler member, falling within a range of 0.1 to 1 mm. With this, it is possible to obtain an aluminum alloy composite material which cannot degraded in brazability and corrosion resistance even when brazed by the brazing method with noncorrosive flux and which has enough high strength to be used for a material of a high-strength heat exchanger, highly improved corrosion resistance and excellent brazability.
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