US2016097607A1PendingUtilityA1

Heat exchanger tube precursor and method of producing the same

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Assignee: MITSUBISHI ALUMINIUMPriority: May 6, 2003Filed: Dec 14, 2015Published: Apr 7, 2016
Est. expiryMay 6, 2023(expired)· nominal 20-yr term from priority
Inventors:Masaya KatsumataYasunori Hyogo
B32B 15/017F28F 21/084C23C 4/12B23K 35/0222B23K 2101/06B23K 35/362B23K 35/36B23K 1/0012B23K 35/0238B23K 1/012F28F 2255/16Y10T428/13B23K 35/24B23K 35/3612B23K 1/203B23K 2101/34B23K 35/0244F28F 19/02B23K 2103/10B23K 35/282B23K 2101/14B23K 1/008B23K 35/3603B23K 35/3613B23K 35/3605F28F 19/06B23K 35/28B23K 35/286
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Claims

Abstract

A heat exchanger tube precursor that allows manufacturing a heat exchanger having high corrosion resistance after brazing treatment is provided. The heat exchanger tube precursor includes: an Al alloy tube; and a flux layer including a Si powder, a Zn-containing flux, a Zn-free flux, and a binder, the flux layer being formed on an outer surface of the Al alloy tube.

Claims

exact text as granted — not AI-modified
1 . A heat exchanger tube precursor comprising:
 an Al alloy tube; and   a flux layer including a Si powder, a Zn-containing flux, a Zn-free flux, and a binder,   the flux layer being formed on an outer surface of the Al alloy tube.   
     
     
         2 - 10 . (canceled)

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