The guide rail is an important part of the machine tool. During the working process, it must bear huge friction. Therefore, the guide rail is required to have high hardness, wear resistance and service life. We usually use medium frequency induction heating equipment for quenching heat treatment to meet its requirements. Require. The medium frequency induction heating equipment produced by Zhengzhou Gou's is not only very popular in China, but also very popular abroad.
1. Medium frequency induction heating surface quenching heat treatment technical conditions Intermediate frequency quenching electrical parameters: primary voltage, 750V; primary current, 70A; primary side coil turns, 12 turns; secondary side coil turns, 1 turn; quenching power. 60-70KW; power factor, 0.9.
2. Process specification for medium frequency induction heating surface quenching heat treatment
a. The gap between the sensor and the rail surface is 1.5-2mm.
b. Mobile quenching 4mm/s.
c. Quenching temperature 900°C.
d. Quenching medium Water.
e. Cooling method Continuous injection 45-55HRC。
3. The surface quenching process parameters of medium frequency induction heating should be determined according to power, maximum primary voltage and heating temperature. In the case of primary voltage ≤ 800V, select the number of primary coil turns to obtain the maximum output power. The speed of heating movement determines the heating temperature, output power and the size of the gap between the inductor and the guide rail. As the power increases, the heating rate increases, and the moving speed should also increase. The gap increases and the temperature rise slows down, so the moving speed needs to be reduced accordingly.
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