Patent Number: 8,870,053

Title: Method for brazing metal parts

Abstract: A method of forming a brazed joint is provided in which a surface portion of a first metal part is placed in contact with a surface portion of a second metal part to form a contact area therebetween, and the first and second metal parts include copper, silver and/or gold as the primary base metal(s) and at least the surface portion of the first metal part is a modified alloy of the primary base metal(s) having 0.5-12 wt. % phosphorus as a modifier. The surface portion of the first metal part is heated to a temperature sufficient to cause the phosphorus to wet the surface portion of the second metal part and to flow a low melting portion of the first metal part into the contact area by capillary attraction to form the brazed joint between the first and second metal parts.

Inventors: Harris; Joseph W. (Cincinnati, OH)

Assignee:

International Classification: B23K 1/19 (20060101); B23K 20/16 (20060101); B23K 31/02 (20060101); B23K 35/24 (20060101); B23K 20/22 (20060101)

Expiration Date: 2018-10-28 0:00:00