Dana Canada Corporation

Stefanija Kisielius, Legal Representative

Brian Edward Cheadle

Robert H Krueger

Mark Stephen Kozdras

Kostas F Dockus

Richard A Hoffman

Michael E Graham

Feng Liang

Margaret Anna Hoffman, Legal Representative

A brazing product for fluxless brazing comprises a substrate and a filler metal-forming composition applied to the substrate. The substrate preferably comprises aluminum, an aluminum alloy or another metal and may include at least one layer of a ceramic, carbide or nitride. The filler metal-forming composition comprises a liquid-forming layer comprising silicon and a braze-promoting layer comprising one or more metals selected from the group comprising nickel, cobalt, palladium and iron. The liquid-forming layer comprises one or more material layers. Where the liquid-forming layer comprises a plurality of layers, it may include at least one layer consisting essentially of silicon.

Layered products for fluxless brazing of substrates

A brazing product for low temperature fluxless brazing comprises a filler metal-forming composition which melts in the range from about 380-575&#xb0; C. The filler metal-forming composition comprises zinc optionally in combination with aluminum and/or silicon, and further comprises at least one braze promoter selected from nickel, cobalt, iron and palladium. The filler metal-forming composition may comprise a single layer or may comprise a number of distinct layers. The brazing product may take the form of a brazing preform or a brazing sheet or casting in which the filler metal-forming composition is deposited on a non-consumable substrate. The substrate may preferably comprise aluminum or an aluminum alloy, but may instead be comprised of one or more metals other than aluminum.

Products for use in low temperature fluxless brazing

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Cicero, IL, United States of America

Stefanija Kisielius, Legal Representative