Features：

- The chamber preheating furnace for forged parts is a power supply device that converts the power frequency 50HZ alternating current into an intermediate frequency (above 300HZ to 20K HZ), and converts the three-phase power frequency alternating current into a direct current after rectification, and then changes the direct current through the frequency conversion device to become adjustable. The intermediate frequency current supplies an intermediate frequency alternating current flowing through the capacitor and the induction coil to generate a high-density magnetic field line in the induction coil, and cuts the metal material contained in the induction coil to generate a large eddy current in the metal material. This eddy current also has some properties of the intermediate frequency current, that is, the free electrons of the metal itself flow in the metal body with resistance to generate heat.

Type of chamber preheating furnace for forged parts:

- According to the different power sources used, forging furnaces can be divided into two categories: flame heating furnace and electric heating furnace. The flame heating furnace is divided into an oil furnace, a gas furnace and a coal burning furnace according to different fuels used, and the gas furnace has two types of natural gas forging heating furnaces and gas heating furnaces;

- According to the structure of the heating chamber, it is divided into a chamber furnace (single chamber, double chamber furnace) semi-continuous and continuous furnace;

- According to the bottom structure and mechanized form, it is divided into a trolley furnace and a rotary hearth furnace (also called a ring furnace). Different production conditions choose different furnace structures, single-piece small batch production requires greater flexibility. Room furnaces should be selected as much as possible. Large and medium-sized forgings should use trolley furnaces. Large-scale production of small and medium-sized forgings should be adopted. Turn the hearth furnace. The choice of furnace type must also be considered in terms of the type of fuel, the quality and size of the heated billet, economic conditions and labor conditions.