In order to improve the hardness and wear resistance of the crankshaft, we usually use medium frequency induction quenching equipment to perform induction quenching on the crankshaft, which is also a type of surface strengthening heat treatment of the crankshaft. There are many ways to strengthen the surface of crankshaft heat treatment. Today, we will talk about the advantages of crankshaft induction quenching over other methods?
The key technology of crankshaft heat treatment is surface strengthening treatment. Its heat treatment technology and surface strengthening methods include induction quenching, crankshaft soft nitriding, etc.
Medium-frequency induction quenching of the crankshaft uses medium-frequency induction quenching equipment to perform medium-frequency induction heating and quenching of the journal and fillet parts. This method has the characteristics of high efficiency, stable quality, and controllable operation. Crankshaft induction hardening also has the following advantages:
1. Improve the fatigue strength and wear resistance of the crankshaft. According to data, after induction quenching and low-temperature tempering (or autothermal tempering), the fatigue strength of the crankshaft can be increased by 134% compared with the quenched and tempered state, and the wear resistance of the journal surface is greatly improved (quenching and tempering). The tempering hardness can be accurately controlled at 50~55HRC), while other strengthening methods are difficult to achieve the above two indicators at the same time.
2. Due to the small heating range and short heating time, the processed crankshaft will have less deformation and less oxidation, which can reduce the finishing allowance and reduce the workload of machining.
3. For crankshafts, induction hardening is a more energy-saving heat treatment technology. The crankshaft only heats the surface of the parts that need to be quenched and hardened, such as the journal, with high electrical efficiency and short time, and reduces energy consumption by more than 80% compared with other heat treatments.
4. The crankshaft uses medium frequency induction quenching equipment for induction quenching, which has high production efficiency. For example, it only takes about 5 minutes to add a crankshaft to a single machine, and because the induction quenching process is clean and can be produced according to the beat, it can be directly arranged on the crankshaft production line, saving logistics costs and time.
From the above explanation, it can be seen that medium frequency induction quenching equipment is the best equipment for surface strengthening heat treatment of crankshafts. We have been engaged in the production and sales of induction heating equipment for fifteen years and have considerable experience. If you do not have such equipment now, you can come to Zhengzhou Gou's for an on-site inspection to learn more.
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