QJ302 copper solder paste made in China

 Copper solder paste

HUAZHONG HZ-QJ302 flux is a high temperature flux for use with copper based brazing filler metals melting between 850-1150 degree. Featuring better in fluidity, and permeability, and it could avoid the problem of fluidity and moisture-absorption. HZ-QJ302 paste is used for brazing of copper and copper alloys, stainless steel, carbon steel, hard metal within 850°C to 1150 degree. It can meet the requirement of high process and automation.

Preparation: The surface of the work pieces should be cleansed carefully before brazing. The performance of the flux can be optimized on a surface without oil and oxide. In flame brazing, neutral flame is usually required.

Conditions for use: Stir the paste before using it .The paste should then be brushed onto the joint surfaces before assembly. Further flux should then be applied externally either side of the joint mouth.

Anhui Huazhong Welding Material Manufacturing Co., Ltd is established in 2004, and located in Hefei——the central City of Anhui Province. We are specialized good in manufacturing and producing brazing materials. Our main products include silver-based brazing filler metal, copper-based brazing filler metal, aluminum-based brazing filler metal and associated brazing flux, flux-cored welding wire etc. Our brazing flux products included: silver welding paste, silver welding powder, copper welding paste, copper welding powder, aluminum welding paste, aluminum welding powder, spot welding paste (water), etc. The available shape of brazing alloys are rod, ring, sheet, strip, wire etc .

Technique innovation& Products excellent & Quality first & Customer satisfaction