1. Used for purification treatment of aluminum alloy melt. It has the ability to degas and adsorb slag inclusions to float to the surface of the aluminum solution and form dry slag.
2. It has outstanding degassing and slag removal effects, as well as H2 removal and covering effects.
1. Aluminum alloy refining flux is a white powdery or granular solvent, which is mixed and prepared by a certain proportion of a variety of inorganic salts after drying treatment. Aluminum alloy refining flux is mainly used to remove hydrogen and floating oxidized slag in the aluminum liquid, so that the aluminum liquid is more pure, and it also has the function of slag removal.
2. Aluminum alloy solution treated by aluminum alloy refining flux. Observing the pouring riser, there is no bubble overflow. The pinholes of aluminum alloy castings are usually 5X. Generally, the pores of the castings are 8X or 25% of the parts do not exceed 4X as qualified.
3. When using aluminum alloy refining flux, the crystal of aluminum alloy is finer than before degassing, and it has tensile strength and elongation. The hardness has been improved to different degrees. The above data are all sand-molded, as-cast, and without modification. Such as the deterioration of sodium salt, the performance can be further improved. For hardness (Brinell hardness), take aluminum alloy ZL103 as an example: 69.1 before treatment and 75.5 after treatment (using the average value). As these figures show that the performance of aluminum alloy is improved by adding refining agent
4. Aluminum alloy refining flux has good spreadability, separation and refining properties, and has a wide range of applications and is convenient to use.
5. After aluminum alloy refining flux is added to the aluminum melt, the aluminum melt can be made to have good fluidity and form an isolation covering layer, which has good anti-gas absorption performance, inhibits hydrogen absorption, and prevents oxidation.
6. After aluminum alloy refining flux is added to the aluminum melt, a powdery slag separated from the melt is generated, and the ability to degas and clear the slag is strong.
7. Silicon tetrafluoride in aluminum alloy refining flux is easy to decompose, and has the ability to combine with hydrogen at high temperatures to form fluorosilicic acid to achieve the effect of exhaust. During the melting process, the oxide film on the surface of the aluminum alloy, due to its high tension, will hinder the escape of gas. When aluminum alloy refining flux is added, AI2O3 is reduced, so that hydrogen has a chance to overflow and achieve the effect of degassing. In addition, AI2O3 is an interface substance that makes castings produce bubbles. When AI2O3 is reduced, the conditions for bubble formation are reduced, so the pores in the castings are greatly reduced.