发明授权
- 专利标题: Aluminum alloy composite materials for brazed heat exchangers
- 专利标题(中): 用于钎焊热交换器的铝合金复合材料
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申请号: US578094申请日: 1984-02-08
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公开(公告)号: US4560625A公开(公告)日: 1985-12-24
- 发明人: Masaharu Kaifu , Jun Takigawa , Hideo Fujimoto , Tomohiro Nishimura , Masao Takemoto
- 申请人: Masaharu Kaifu , Jun Takigawa , Hideo Fujimoto , Tomohiro Nishimura , Masao Takemoto
- 申请人地址: JPX Kobe
- 专利权人: Kabushiki Kaisha Kobe Seiko Sho
- 当前专利权人: Kabushiki Kaisha Kobe Seiko Sho
- 当前专利权人地址: JPX Kobe
- 优先权: JPX58-23546[U] 19830214
- 主分类号: C22C21/00
- IPC分类号: C22C21/00 ; B23K35/02 ; B32B15/01 ; F28F19/06 ; B32B15/20
摘要:
Aluminum alloy composite materials for brazed heat exchangers are described, which comprise an Al core alloy essentially consisting of predetermined amounts of Si, Mg, Cu and at least one element selected from Mn, Cr and Zr, the balance being Al and inevitable impurities, and an Al alloy clad layer formed on one side of the core alloy which is in contact with an aqueous heat transfer medium. The clad layer has a thickness 3-20% based on the thickness of the composite material and a less-noble corrosion potential of 20-100 mV than the core alloy. A filler alloy may be formed on the other side of the core alloy.