RED Copper Soldering Paste

 Silver Solder Flux Paste QJ305

QJ305 silver brazing paste is a new type of researched brazing flux, which gathering advantages from all kinds of welding fluxes.

Usages:

It can work together with silver based brazing alloys for copper and copper alloys, stainless steel, nickel alloys, diamond PCD

at the temperature range of 600 to 850 Celsius degree in flame brazing, resistance welding, high frequency brazing, 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, 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.