发明申请
- 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: US20050153155A1公开(公告)日: 2005-07-14
- 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
- 优先权: JP2002-156268 20020529
- 主分类号: F28F19/06
- IPC分类号: F28F19/06 ; F28F21/08 ; B32B5/14
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.
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