The melting process of magnesium and magnesium alloy is as follows:

(1) Mechanical stirring and gas stirring combined so as to remove magnesium oxide impurities, the molten magnesium will steadily flow in circle during refining process, this can help the oxide inclusions in molten magnesium can be fully adsorbed by refining agent, and then precipitate in the bottom of the crucible. Compared with the traditional melting furnace, it can save refining agent by more than 40%;

(2) Use the new protective gas technology in melting which greatly improve the purity of the magnesium alloy, the commonly used gas combination is SF6 + N2, SF6 + CO2 or SO2 + N2, we succeeded in trial of new protective gas combined by CO2 + argon + xenon;

(3) We successfully using melting mode of 3+1 or 4+1 which can save energy consumption, According to the customer's specific needs, we equip three/four gas or resistance heating furnace on a heating, holding electric resistance furnace.

(4) Gas melting furnace is controlled by PLC double regenerative waste heat utilization system, it can save energy by 25-30%;

(5) Melting furnace, holding furnace work independently. The molten magnesium is transferred to the holding furnace by the U-shaped infusion tube which can automatic heat the magnesium, then the molten magnesium passes through the metering system, flows to the terminal equipment such as magnesium ingot casting machine, semi-continuous casting machine or slab continuous casting and rolling mill, it realizes safe and efficient automated melting production.