Flux Vaporizer

What is Flux Vaporizer?

UNIPRO Flux Vaporizer is a means for adding flux in a vapour form to any fuel gas (DA/LPG/Propane).

The flux adding form of this process is continuous and uniform which fully covers the brazing part in the torch combustion flame. This makes the welding work more convenient and qualified.

In addition, the welded joints are neat and glossy; the residues are much more cleanable. It also reduces generation of pores, improves weld strength, prevents oxidation and blackening of brazing area which minimises post brazing clean up. Productivity increases at reduced cost.

Operation Of Flux Vaporizer ?

Liquid gas flux is used in flame brazing process because of its specialties of volatility and flammability. In practice, the fuel gas is pumped in to the Flux Vaporizer, which contains the liquid gas flux, and evenly mixed with the gas-phase flux. The mixture goes into the welding torch and is flared together with oxygen, producing a green bright flame. A decomposition reaction takes place during the combustion. The product (which is in gas phase) of this decomposition reaction is sprayed onto the work pieces generating a layer of flux by being liquefied. This liquid layer stays on the surface of the melted filler metals preventing them from being oxidized. Also it enhances the wetting effect of the filler metal and thus trigger the flowing of the filler metal into the welding seams. This flux can dissolve the oxide of many kinds of metals, such as iron, copper, nickel, zinc and silver. Resolving of different metals appears different colours on the surfaces of the welding joint: copper appears amaranth; iron appears red; and other metals mostly appear black.