1. Main use 
ZG series vacuum induction furnace is a modern equipment for melting metal under vacuum condition (or gas protection); Because it can strictly control temperature and alloy composition, and has electromagnetic stirring and strong high vacuum degassing ability, it is widely used in metal, alloy smelting, casting and remelting processes. It is suitable for metallurgical plants and related scientific research departments as an effective equipment for smelting and casting of nickel-based, iron-based, high-precision alloys and high-purity metals under high vacuum conditions. 
ZG series vacuum induction furnaces can be divided into two types according to the working characteristics, such as periodic type and semi-continuous type. Mainly consists of electric furnace body, spindle system, bus bar and power feeding device, vacuum system, pneumatic system, water cooling system, hydraulic system, electrical control system, medium frequency power supply (the structure is different according to the furnace capacity). 
In the metallurgical industry, vacuum induction melting is the most commonly used process, which is mainly for the refining, liquid processing, chemical composition and temperature adjustment of metals and alloys. Vacuum induction melting has the following characteristics: 
· Increase production by saving raw materials such as alloying elements. 
· Effectively control and adjust the alloy composition to produce high performance metal and alloy materials. 
· It can suppress the formation of non-metallic oxide inclusions in metal solutions and cast high quality castings. 
·Using its unique electromagnetic stirring characteristics, it can effectively avoid the phenomenon of element segregation in alloy melting. 
·According to the melting point of the element, it can effectively remove some harmful volatile trace elements such as strontium, barium, selenium and tellurium. 

The main technical parameters of vacuum induction furnace