Melting metal vacuum furnace

The pressure in the furnace can be pumped into an industrial furnace below atmospheric pressure. The vacuum furnace is electrically heated, and the surface of the heated workpiece is not oxidized, does not decarburize, has small deformation, and has good mechanical properties. Melting the metal in a vacuum furnace is advantageous for removing impurities, and the product has less pinholes, small segregation, and good quality. Vacuum furnaces are suitable for the smelting and heating of high quality, high purity, refractory metals, such as smelting and magnetic materials for tungsten, molybdenum, niobium, tantalum, titanium, heat resistant alloy steel, electrical materials, high strength steel, stainless steel, tools Heat treatment of steel, die steel, etc.vacuum-furnace-application

    Vacuum furnaces appeared around the 1930s. In 1927, the United States made a vacuum annealing furnace for electrical materials. In 1953, vacuum consumable electric arc furnaces have been used industrially to smelt titanium sponge. Vacuum induction furnaces were widely used in the industry around the 1950s. In 1960, the United States developed an oil quenching vacuum furnace.vacuum-oil-quenching-furnace

The vacuum furnace generally consists of a furnace, an electric heating device, a sealed furnace shell, a vacuum system, a power supply system, and a temperature control system. The sealed furnace shell is welded with carbon steel or stainless steel, and the joint surface of the detachable member is sealed with a vacuum sealing material. In order to prevent deformation of the furnace shell after heating and deterioration of the sealing material, the furnace shell is generally cooled by water or air cooled. The furnace is located in a sealed furnace shell. Depending on the furnace application, different types of heating elements, such as resistors, induction coils, electrodes and electron guns, are installed inside the furnace. The vacuum furnace furnace for melting metal is equipped with crucibles, and some are equipped with automatic pouring devices and robots for loading and unloading. The vacuum system is mainly composed of a vacuum pump, a vacuum valve and a vacuum gauge.vacuum-gas-quenching-furnace-pellet-die-heat-treatment-process/

The vacuum furnace is divided into a vacuum resistance furnace, a vacuum induction furnace, a vacuum arc furnace, a vacuum consumable electric arc furnace, an electron beam furnace (also called an electron bombardment furnace), and a plasma furnace according to heating elements.vacuum-heat-treatment-furnace-principle