Explanation

Also known as vacuum consumable remelting, it is a smelting method of melting metals and alloy under vacuum conditions by heating the arc thermal effect. Since a certain vacuum degree is adopted and the molten metal is used as consumable electrode, the corresponding equipment is called vacuum consumable electrode electric arc furnace or vacuum consumable furnace for short. The furnace body is composed of furnace shell, electrode, electrode rod, electrode lifting device and water-cooled copper mold. The furnace shell is generally made of stainless steel materials. The consumable electrode (negative electrode) made of remelted metal is installed on the electrode rod. After being pumped to a certain vacuum, it is connected with low voltage and high current. After the metal is melted, it drops into the water-cooled copper mold (positive electrode) and condenses into ingots. The vacuum arc remelting process can melting refractory metals such as tungsten, key, niobium, tantalum, and their alloy, and highly reactive metals such as titanium, zirconium, and their alloy, as well as high temperature alloy, high alloy steel, etc.

Classification