Compared with general heating and heat treatment in a general furnace, induction heat treatment has the following characteristics:
(1) According to the performance requirements of the product, only the surface or local heating of the part is performed, and the surface or local strengthening is performed, so it is an energy-saving heat treatment.
(2) The production process is pollution-free and is clean and heat-treated.
(3) The induction heating time is short and the speed is fast, which is conducive to the refinement of the quenched structure and obtains the strengthening effect of excellent wear resistance and torsional bending fatigue resistance.
(4) The induction hardening device can be conveniently installed on a production line, which is convenient for production management and reduces logistics costs.
(5) The induction hardening production has fast cycle, high efficiency, and can realize complete automation.
These characteristics of induction heat treatment make induction hardening technology widely used in automotive parts production. At present, automobile parts that are subjected to induction hardening are mainly automobile shaft parts that transmit power torque, such as crankshafts, axle shafts, spline shafts, drive shafts, camshafts and various pin shaft parts.
