High-frequency induction heating machine for bed rail quenching process

High-frequency induction heating machine for surface hardening process of workpiece

①Name of high-frequency induction heating surface hardening work piece CA6140 lathe bed rail high-frequency hardening inductor structure, the material used is HT300.

②High frequency induction heating surface quenching heat treatment technical conditions, medium frequency quenching electrical parameters: primary voltage, 520V; incoming line current, 150A; primary coil turns, 12 turns; secondary coil turns, 120kW; power factor, 90% .

③High-frequency induction heating surface quenching heat treatment process specification: a. The gap between the inductor and the guide rail surface is 1.5-2mm. b. Moving speed 4mm/min. Quenching temperature 900℃. d. Quenching medium water. e. Cooling method: continuous spraying.

④Intermediate frequency induction heating surface quenching heat treatment process analysis a. Hardness After high-frequency quenching, the hardness reaches 45～55HRC. b. The depth of the hardened layer is 2mm. c. Microstructure The hardened layer is cryptocrystalline and fine needle-shaped martensite. Graphite. There is a small amount of phosphorus eutectic without obvious transition layer. d. Bending deformation, the depression in the middle is less than or equal to 0.5mm.