Patent ID: 8696829
Filing Date: 2014-04-15
Classification: B23K,Y10T

Abstract:
1. A method for manufacturing a brazing product from a brazing flux powder and a filler metal, said method comprising the steps of: a) providing filler metal particles with a size from 500 μm to 5 mm, and b) mixing said brazing flux powder having a grain size of less than 100 μm with water until a low viscosity paste is obtained, capable of flowing plastically, and c) pouring said brazing flux paste on said metal particles while kneading and heating said metal particles to a temperature of at least 100° C. until a regular coating of the surface of each of said filler metal particles with said paste is obtained, and heating said coated particles to said temperature until the water contained in said brazing flux coating said particles is evaporated, and d) mechanically compacting the particles coated in step c) at a pressure of less than 5,000 bars by heating them to a temperature lower by at least 300° C. than the melting temperature of the brazing flux; and recovering said brazing product.