What is induction melting?
It is a cost-effective and energy-efficient method of raising the temperature of a metal to its melting point and holding that temperature to perform metallurgical processes such as smelting, alloying, mixing, and casting.
When a large AC current flows through a heating coil wound into a ring or other shape (usually made of a copper tube). As a result, a strong magnetic flux with instantaneous polarity changes is generated in the coil. When placing the metals in the coil, the magnetic flux will penetrate the entire heated object. In the opposite direction of the heating current inside the heated object. The corresponding large eddy current. Because the object has a big resistance, it will generate a lot of Joule heat, and the temperature of the object itself will rise rapidly, achieving the purpose of heating all metal materials.
It uses KGPS intermediate frequency power supply. The frequency is small, but the power can be relatively large. The maximum power can reach 4,000 KW. It is suitable for large-scale foundries, such as large-capacity industrial iron furnaces, stainless steel furnaces, steelmaking furnaces, billet induction heating furnaces, etc.
It uses an IGBT intermediate frequency power supply. The advantage of this power supply is high electrical efficiency, which can generally reach more than 90%. Therefore, it saves 10-20% of electricity than the thyristor and has little impact on the power grid. Generally suitable for small-capacity aluminum melting furnaces, copper melting furnaces, zinc melting furnaces, induction heating of steel wire, etc.
Heating temperature is between 200-1400 degrees.
Induction billet furnaces can heat billets to temperatures ranging from room temperature to over 1200°C.
After the Slab is pulled out from the continuous casting machine,Surface temperature is 750 ~ 850℃.
Induction online heating of large steel pipes is widely used in the heat treatment of various high alloy steel pipes required in oil drilling, geological drilling, coal mining, infrastructure exploration and other fields.