发明授权
- 专利标题： Aluminum alloy heat exchanger and method of producing the same
- 专利标题（中）： 铝合金换热器及其制造方法
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申请号： US10999232申请日： 2004-11-30
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公开(公告)号： US07247392B2公开(公告)日： 2007-07-24
- 发明人: Kazumitsu Sugano , Noriyuki Yamada , Akio Niikura , Yoshiaki Ogiwara , Masaki Shimizu , Kenji Negura , Sunao Fukuda , Yoshihiko Kamiya
- 申请人： Kazumitsu Sugano , Noriyuki Yamada , Akio Niikura , Yoshiaki Ogiwara , Masaki Shimizu , Kenji Negura , Sunao Fukuda , Yoshihiko Kamiya
- 申请人地址： JP Tokyo JP Aichi
- 专利权人： Furukawa-Sky Aluminum Corp.,Denso Corporation
- 当前专利权人： Furukawa-Sky Aluminum Corp.,Denso Corporation
- 当前专利权人地址： JP Tokyo JP Aichi
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP.
- 优先权： JP2002-156268 20020529
- 主分类号： B32B15/20
- IPC分类号： B32B15/20 ; F28F21/08 ; B23K101/14 ; B23K10/06
摘要：
An aluminum alloy heat exchanger having a tube composed of a thin aluminum alloy clad material, wherein, in the clad material, one face of an aluminum alloy core material containing Si 0.05–1.0 mass % is clad with an Al—Si-series filler material containing Si 5–20 mass %, and the other face is clad with a sacrificial material containing Zn 2–10 mass % and/or Mg 1–5 mass %, and wherein an element diffusion profile of the clad material by EPMA satisfies (1) and/or (2): L-LSi-LZn≧40(μm) (1) L-LSi-LMg≧5(μm) (2) wherein L is a tube wall thickness (μm); LSi is a position (μm) indicating an amount of Si diffused from the filler material; and LZn and LMg each represent a region (μm) indicating an amount of Zn or Mg diffused from the sacrificial material, respectively; and a method of producing the heat exchanger.