发明公开
EP1576332A1 ALUMINUM ALLOY TUBE AND FIN ASSEMBLY FOR HEAT EXCHANGERS HAVING IMPROVED CORROSION RESISTANCE AFTER BRAZING
有权
在铝合金EXISTING FOR DEVICE交换剂管和肋条具有改进的防腐蚀焊接后
- 专利标题: ALUMINUM ALLOY TUBE AND FIN ASSEMBLY FOR HEAT EXCHANGERS HAVING IMPROVED CORROSION RESISTANCE AFTER BRAZING
- 专利标题(中): 在铝合金EXISTING FOR DEVICE交换剂管和肋条具有改进的防腐蚀焊接后
-
申请号: EP03782038.8申请日: 2003-12-22
-
公开(公告)号: EP1576332A1公开(公告)日: 2005-09-21
- 发明人: PARSON, Nicholas, Charles , GRAY, Alan , MAROIS, Pierre, Henri , RAMANAN, Thiagarajan
- 申请人: ALCAN INTERNATIONAL LIMITED
- 申请人地址: 1188 Sherbrooke Street West Montreal Quebec H3A 3G2 CA
- 专利权人: ALCAN INTERNATIONAL LIMITED
- 当前专利权人: ALCAN INTERNATIONAL LIMITED
- 当前专利权人地址: 1188 Sherbrooke Street West Montreal Quebec H3A 3G2 CA
- 代理机构: Gaunt, Robert John
- 优先权: US436022P 20021223
- 国际公布: WO2004057261 20040708
- 主分类号: F28F21/08
- IPC分类号: F28F21/08 ; C22C21/00
摘要:
Extruded tubes for heat exchangers have improved corrosion resistance when used alone and when part of a brazed heat exchanger assembly with compatible finstock. The tubes are formed from a first aluminum alloy comprising 0.4 to 1.1% by weight manganese, up to 0.01% by weight copper, up to 0.05% by weight zinc, up to 0.2% by weight iron, up to 0.2% by weight silicon, up to 0.01% by weight nickel, up to 0.05% by weight titanium and the balance aluminum and incidental impurities. The fins are formed from a second aluminum alloy containing 0.9 to 1.5% by weight manganese or an alloy of the AA3003 type, this second aluminum alloy further containing at least 0.5% by weight zinc.
公开/授权文献
信息查询