China brazing silver solder paste

Anhui Huazhong Welding Material Manufacturing Co.,Ltd is a leading supplier of superior quality of Brazing Flux. Brazing Flux is a substance, which cleans the metals when they are joining while soldering, brazing, and welding. In high temperature metal joining processes, the primary purpose of flux is to prevent oxidation of the base and filler materials. Secondarily, Brazing Flux acts as a wetting agent in the soldering process, reducing the surface tension of the molten solder and causing it to better wet out the parts to be joined. Additionally, flux allows solder to flow easily on the work piece.

Features :-

Cleans the metals when they are joining while brazing and welding

High-temperature metal joining processes

Prevent oxidation of the base and filler materials

Acts as a wetting agent in the soldering process

Reducing the surface tension of the molten solder and causing it to better wet out the parts to be joined

Allows solder to flow easily on the work piece

Featuring better fluidity and permeability than other silver brazing pastes, HZ-QJ305 silver brazing paste is a new type of researched and developed brazing flux gathering advantages from all kinds of welding flux.

Usages: HZ-QJ305 can work together with silverbased brazing alloysfor copper and copper alloys, stainless steel, nickel alloys, diamond PCD at the temperature range of 600 to 850 °C in flame brazing, resistance welding, highfrequencybrazing, furnace brazing.

Physical status: paste  Granularity:≤150μm   Density: 1.9-2.1   Standard: JB/T6045-92

Chemical composition: complex borate, complex fluoborate, activities, water etc. No contain restricted compounds.

Characters: The flux is very stable chemically and physically. No precipitate, caking or loss of activity and fluidity for long time storage. Featuring smooth surface and small welding seam, HZ-QJ305 can replace similar foreign product. 

Application areas: Refrigerator accessories, compressor, stone and wood cutter, automobile accessories, glass frame, ornament and jewelry, electric apparatus, hardware tools, etc.

Preparation: To optimize the result, the work pieces should be cleansed thoroughly previous to brazing operation, the surface should not be too rough or attached on metallic particle or dirt. Stainless steel work piece should not be scrubbed by steel wire brush.

Operation: Dip the work pieces into the paste or diluted paste before brazing.

Post treatment: the residue can be eliminated by merging the work piece into hot water on 10% mass fraction citric acid.

Caution: inesculent. Immediate water flashing is need if it is splashed into eye or mouth. Do not mix it with other impurity materials. After the packing is opened, the paste can be hardened easily. 

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 .

After-sale Service Warranty

1)If any quality problems such as manufacture, function or procedure occur within the guarantee period, We shall take responsibility and bear some theconomic losses.

2)If any quality problems such as occur within the guarantee period, we shall provide on line service after receive the buyer’s notice in 24 hours .

3)We will provide a lifetime favorable price to the buyers .