Produts Description

In the process of brazing, the wettability of molten filler metal and base metal depends mainly on the function of brazing agent. The main function of brazing flux including 3 parts, one is the matrix, the second is the film removing agent, and the other is the surfactant.

Application Areas

Brazing flux is mainly used for the welding of silver and copper solder, which plays an important role in assisting heat conduction, removing the oxide on the surface of base material and solder surface, reducing the surface tension of the welded material, removing the oil stain on the surface of the welded material (base material), increasing the welding area and preventing reoxidation.

Product Form

Flux have the two forms of powder and paste.

Product List

Model Name Color Brazing Temp.
°C		 Chemical Composition Application
HZ-102 Silver solder paste White powder 550-850 KBF4, FK, H3BO3 It has a relatively low melting temperature, good wettability and fluidity. It is used in silver-based filler metals and during the brazing process.
HZ-103 Silver solder paste White paste 550-850 KBF4, FK, H3BO3, It has a relatively low melting temperature, good wettability and fluidity. It is used in silver-based filler metals and during the brazing process.
HZ-203 Silver solder paste Greyish-brown paste 505-850   Melting temperature is lower than 103, with better wettability and fluidity, used for silver-based brazing filler metals.
HZ-301 Copper solder powder White powder 850-1150 Na2B4O7, H3BO3, Other It has a relatively high melting temperature, good wettability and fluidity. It is used in copper-based filler metals and is used in the brazing process.
HZ-302 Copper solder paste White powder 850-1150 KBF4, H3BO3,  It has a relatively high melting temperature, good wettability and fluidity. It is used in copper-based filler metals and is used in the brazing process. Compared with powder, it is more convenient to use.