Aluminum Smelter Refining Flux has a better effect on the removal of gas and impurity in the melting of aluminum and its alloys, which results in a lower hydrogen content in the melt and a more effective reduction in the burning loss of the metals.
At the same time, the refining agent has a certain heating effect, which makes the hot slag recovery more convenient and higher recovery rate.
In order to make high quality aluminium or aluminium alloy profiles, it is necessary to Refine the raw materials of the aluminium or aluminium alloy profiles, which requires good Refine Flux.
Aluminum Smelter
Refining Flux generally passes through the melt of aluminum and aluminum alloy with inert gas as the carrier for the removal of gas and impurity.
When Aluminum Smelter Refining Flux is used incorrectly, the following undesirable things happen:
For example, the separation of aluminum slag is poor, the degassing effect is poor, the heating effect is too large, the burning loss of aluminum is increased, or there is no heating effect, leading to the recovery of hot slag.
Under normal circumstances, the H(hydrogen) content of aluminum and aluminum alloy melt is usually above 0.30mL /100gAl before degassed and deimpurity. If the raw material is poor, the H content even exceeds 0.40mL /100gAl. The H content of aluminum melt in furnace can be reduced to 0.18mL /100gAl level by high quality refining agent.
When the flux is added to the aluminum alloy melt, it melts into flux drops. Because the proportion of flux is smaller than that of melt, flux drops float in the melt.
It encounters non-metallic inclusion particles in the melt as it floats up.
Because of the low surface tension of the flux at the interface of the non-metallic inclusion, the flux can wet the non-metallic inclusion and make it adsorbed on the flux droplet.
The
aluminum casting flux has a large surface tension on the interface of liquid aluminum and does not infiltrate, so the flux can float out of the liquid surface with the non-metallic inclusion adsorbed together under the action of specific gravity difference, and then be removed by slag picking. This kind of slagging is generally called flotation slagging.
Aluminum Smelter Refining Flux has the following characteristics
1. It has certain dissolution ability for oxide.
2 enough to increase the fluidity of the melt flux.
3. It can effectively remove the oxide film on the melt surface and improve the degassing effect.
4. Increase the surface tension of the mixed molten salt, so that the molten salt with adsorbed oxide is spherified, which is convenient for separation from the melt and reduces the loss caused by the solid slag wrapping aluminum. Moreover, due to the improvement of the surface tension of flux and melt, the volume adsorption process of inclusion is accelerated.
