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EMAIL: [email protected]
Silicon metal is widely used in the manufacturing process of aluminum alloy. When smelting aluminum alloy, it is usually necessary to wait for the aluminum ingot to dissolve before adding a certain percentage of silicon metal. The silicon metal used in the aluminum alloy manufacturing process is mainly 441#, 553#, 3303#, 2202#, and 1101#. High-quality silicon metal can effectively improve the mechanical properties of aluminum alloy and increase the yield.
The emergence of silicon metal powder solves the problem of slow melting speed in use, but because of the small particles and light weight of silicon metal powder, it tends to float on the surface of the aluminum liquid when used, easily covered by alumina, which affects the subsequent slag removal effect, thus affecting the quality of aluminum alloy and causing difficulties for subsequent processing.
How to properly use silicon metal in the production of aluminum alloys?
By adding aluminum ingots to the smelting furnace and putting silicon metal into the aluminum foil tape for vacuum treatment, after which the treated silicon metal is put into the aluminum solution and stirred thoroughly and uniformly at 730~760 degrees Celsius for half an hour, after which the aluminum solution is de-slagged and de-gassed to obtain a higher purity aluminum solution.
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