Many people must be familiar with medium frequency smelting, but the concept of medium frequency diathermy is relatively vague, because the previous diathermy forging process mostly used coal-fired diathermy. Let's introduce the characteristics and application of medium frequency diathermy furnace.
What is diathermy?
Diathermy refers to the overall penetration heating of metal before thermal deformation or heat treatment.
How to realize diathermy process in medium frequency furnace?
The medium frequency diathermy furnace is a power supply device that converts the power frequency 50Hz alternating current into medium frequency (2-6khz). It converts the three-phase power frequency alternating current into direct current after rectification, and then converts the direct current into adjustable medium frequency current to supply the medium frequency alternating current flowing through the capacitor and induction coil, generates high-density magnetic lines in the induction coil, and cuts the metal materials contained in the induction coil, Large eddy currents are generated in metal materials. This eddy current also has some properties of medium frequency current, that is, the free electrons of the metal itself flow in the metal body with resistance to produce a lot of heat, so as to achieve the purpose of heat transmission. The medium frequency diathermal furnace produced by GuangYuan · GuangZhiYuan electric furnace in China is widely used for forging heating:
1. Overall heat transmission: heat transmission and temperature supplement of bar, round steel, square steel and steel plate;
2. Local heat penetration: local heat penetration forging of round steel, bar material and standard parts
3. On line diathermal forging of metal materials: such as precision forging, extrusion, hot rolling, heating before shearing, spraying heating, etc. of gears, half shaft connecting rods and bearings.