Al Brazing Flux Powder(Non-corrosive)

As the latest non-corrosive flux for aluminum-silicon alloy brazing, KAlF flux is used in a small amount throughout the brazing process, but its role is very important, related to the quality and effect of product welding.

KALF fluxes sold by our company have been verified and tried by well-known domestic and international customers, and have been widely recognized by customers in different countries and regions in the heat exchanger industry.

Compared with the well-known international top brands, we have a higher price-performance ratio without obvious quality differences.

FLUX SPECIFICATION(Potassium Fluoroaluminate)

PHYSICAL PROPERTIES:

Appearance:                                                   White Powder

Melting temperature:                                      560～570 ℃

Bulk density:                                                   0.40～0.55 g/cm³

Solubility (20 ° C):                                           4.4 g / l

PARTICLE SIZE (μm) and DISTRIBUTION:

Average particle size                                       7.0 ± 1.0, 2-6 μm not less than 46%

CHEMICAL COMPOSITION:

Potassium:                                                     28.5%～31.0 %

Aluminum:                                                     16.5 %～18.5 %

Fluorine:                                                         49.0 %～52.5 %

Moisture and others:                                       ≤ 2.5% (@ 300 ℃)

RoHS： Compliant

APPLICATION INSPECTION:

Spreadability:                                                 510-540 cm² / g

Test Conditions:                                              Atmospheric environment, pure aluminum plate, melting time 2 minutes

Settling Property:                                           10.0-12.0 cm/min

Test Conditions:                                              In a 100 ml measuring cylinder with flux concentration 5%, and averaged deceleration of 10 min.

APPLICATION：

It is used as aluminum and aluminum alloy flux in automotive aluminum heat exchangers.

FEATURES OF PRODUCT:

1. Excellent spreading performance, rapid diffusion, uniform diffuse flow, strong permeability, and good wetting process performance;

2. Uniform particle size distribution, high stability between batch qualities;

3. Higher reaction activeness, fast reaction with alumina, reducing flux loading;

Here below is the picture of the package:

Please feel free to contact us for a sample trial.