The quenching process of crankshaft quenching with half-turn inductor by medium frequency induction heating power supply

The crankshaft is an important part of the car and a key component of the engine. Its performance directly affects the service life of the car. Crankshafts are required to have high fatigue strength and good wear resistance. For this reason, many manufacturers use medium-frequency induction heating power sources to perform quenching heat treatment on crankshafts. Zhengzhou Gao's is a professional manufacturer of induction heating power supplies. Today, we will analyze the medium frequency induction quenching process of the crankshaft.

The crankshaft is one of the most important and critical parts of the engine. Therefore, it is very important and urgent to steadily improve the intrinsic quality and fatigue strength of the crankshaft to extend the service life of the crankshaft.

In the past, the engine crankshaft has been quenched by medium-frequency heating with a separate full-circle inductor. This process is backward, cumbersome to operate, and the induction coil is easy to deform. Especially during the quenching process, the hardness of the rounded corners of the crankshaft is easily reduced (lower than the quenching and tempering hardness). The metallographic structure of the heat-affected zone deteriorates, which reduces the fatigue strength there and is one of the main factors leading to rail-stage fracture. Most of the fracture locations are concentrated at the inner fillet of the connecting rod neck.

Zhengzhou Gou's has developed a half-turn inductor through continuous research. The medium-frequency induction heating power supply uses a half-turn inductor to rotate, heat and quench the engine crankshaft. It uses a programmable controller PC and uses the programmer to send the program and preset quenching. The process time, reliable work, convenient operation and stable quality have overcome the hidden danger of early fracture of the crankshaft during use. At the same time, it can greatly reduce the auxiliary time, reduce the labor intensity, improve the working conditions, increase the productivity and achieve good results. It has economic and social benefits, and creates conditions for simultaneous heating and quenching of journals and fillets. It is a relatively advanced crankshaft strengthening process.

The medium frequency induction heating power supply uses a half-turn inductor to quench the crankshaft, which greatly improves its quenching quality. Zhengzhou Gou's has a good understanding of equipment manufacturing and sensor manufacturing. If you have workpieces that require quenching heat treatment, you can contact us.