Patent ID: 8956474
Filing Date: 2015-02-17
Classification: B23K,C22C,Y10T

Abstract:
1. A method of manufacturing a brazed structure that comprises a copper alloy, an other material brazed to the copper alloy, and a brazing filler metal that brazes the copper alloy and the other material, wherein the method comprises the steps of: (a) interposing the brazing filler metal between the copper alloy and the other material; (b) heating the brazed portion of the copper alloy, the brazed portion of the other material, and the brazing filler metal to at least 700° C. or higher so as to be brazed; and (c) cooling the brazed portion of the copper alloy at an average cooling rate of 0.1° C./second to 60° C./second in a temperature range from a material temperature when brazing ends to 300° C., or from 700° C. to 300° C., wherein the copper alloy has an alloy composition comprising