brazing flux

Application scope:

Common used brazing flux,used with silver brazing alloy,for brazing copper and cpper allloy, steel and stainless steel, carbide steel, PCDsegments etc, can be used as furnace brazing, flame brazing, high frequency brazing.

Apperance:

White powder, density≤150um.

Current standard:

JB/T6045-92<Fluxes for Brazing>

Components:

KF; KBF4;B2O3 ;Fluoroborate;Borate;Activity Agent.

Preparation before brazing operation:

For better brazing results, you need to clean the joint srufaces either mechanically or chemically. Completely remove the oxide and organic compound. Do not make the surfaces too rough; make sure you remove all metal granules, oxide and organic compound at the joints.

Brazing operation:

The flux poeder should be mixed with water to form a thick paste( mixing rate is 100g powder: 35ml water). The paste should then be brushed onto the joint surfaces before brazing. Use a warm brazing rod dipped into flux powder. Suitable gap is 0.01-0.05mm. Do not overheat the allou and flux in one spot. Make sure to heat gradually and evenly using a neutral flame.

Operating afer brazing:

Any or all residue should be removed by hot water. Or it can be soaked in the citric acid.

Storage:

Keep it in dry and cool place . Protect against damp,inedible.