The working conditions of the engine cylinder set are at a higher temperature, semi-drying state, and is strongly friction-by the piston ring, therefore, the surface of the cylinder line should have a high hardness; the cylinder line is also affected by the alternating load, so it is hard The sur...

The crank neck induced quenching has the following four quenching processes: 1. The crankshaft is not rotated, and the opening and joint sensor is used to heat on the journal to be heated, and the spray is quenched. Later, a semi-automatic crankshaft quenching machine was developed, and a large ...

The sensing heat treatment process adjustment is done after the quenching machine, the process equipment adjustment is completed, which includes: 1. Electrical regulatory adjustment The power required to quench is transferred, and the high and intermediate frequency power supply devices are not ...

Zhang Shiqi and so on have carried out the effect of inductive quenching parts without tempering the fatigue life. Tests show that there is no tempering after induction quenching, the residual pressure stress of the workpiece can be retained, and the fatigue strength of the workpiece can be impro...