Composite sheet material for brazing
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United States of America Patent
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Jun 22, 2004
Grant Date -
N/A
app pub date -
Jan 24, 2002
filing date -
Apr 22, 1999
priority date (Note) -
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Abstract
The invention relates to a composite sheet material for brazing, the composite sheet material having a structure comprising an aluminium or aluminium alloy substrate on at least one side coupled to a layer comprising a polyolefin/acrylic acid copolymer as a carrier filled with brazing flux material, and optionally also with a metal powder, in an amount sufficient to achieve brazing. The invention further relates to a method of manufacturing composite sheet material for brazing, which method comprises the steps (a) mixing the polyolefin/acrylic acid copolymer with the brazing flux material and/or metal powder, and (b) applying to at least one surface of the metal substrate a mixture of said copolymer filled with the brazing flux material and/or metal powder, in an amount sufficient to achieve subsequent brazing.
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