Metallurgical furnace

Metallurgical furnace, namely vacuum induction melting furnace, melts metal by induction heating in vacuum, and then molten metal is poured into the mould to obtain the melting equipment of metal ingot. The development of vacuum induction furnace began in 1920, mainly for smelting Ni Cr alloy. Until the Second World War promoted the progress of vacuum technology, the vacuum induction melting furnace really developed. During this period, due to the demand for alloy materials, vacuum induction melting furnace has been developing to large scale, from the initial several tons to tens of tons of super large induction furnace. In order to adapt to the production of large quantities of equipment, in addition to size change, structure of induction furnace from cycle unit furnace to charging, mold preparation, smelting, casting operation to achieve continuous or semi continuous vacuum induction melting. By continuous operation, the charging time and the waiting time of ingot cooling are saved. The continuous production increases the efficiency and increases the output of the alloy. Better meet the needs of actual production. Vacuum induction furnace in China early compared with overseas capacity is relatively small, mainly in the following 2 tons of metallurgical furnace, large still rely on imports from abroad, with decades of development, our country also can be self-developed large-scale metallurgical furnace, smelting reached maximum ten tons. VIM vacuum induction melting furnace developed earlier, simple structure, easy to use, low maintenance cost, has been widely used in actual production.

Is the basic form of vacuum induction melting furnace in the drawing, metal material through the turret can rotate into the melting crucible, vacuum pumping system for pumping air inside the container will arrive at an appropriate vacuum degree, turret rotation angle melting, on the other side of the rotary arm at the crucible, by measuring the temperature even to achieve the temperature down into the determination of the molten metal. The melted metal is driven by the turnover mechanism, and is poured into the molding mould to realize the smelting of metal. The whole process is simple and easy to operate, each melting takes one to two workers can be completed, can realize real-time monitoring of temperature in the smelting process, material composition adjustment, metal materials get more accord with the technological requirements.