Brazing method
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United States of America Patent
Stats
-
Jul 22, 2008
Grant Date -
Apr 21, 2005
app pub date -
Oct 14, 2004
filing date -
Oct 16, 2003
priority date (Note) -
In Force
status (Latency Note)
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Abstract
For integrally bonding a first member and a second member made of copper or a copper alloy by brazing, a paste brazing material composed essentially of copper (Cu), tin (Sn), nickel (Ni) and phosphorus (P) is beforehand applied to at least one of the first and second members. A base material is exposed at the whole or a part of a contact portion between the first and second members. Thereafter, the first and second members are assembled at a predetermined position, and heated at a temperature in a range of 600.degree. C.-800.degree. C. within a reducing atmosphere furnace. By the brazing method, an oxide film on the surface of the base material can be sufficiently removed, so that the paste brazing material can smoothly flow on the surface at the contact portion.
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