Automobile steering knuckle hardening by medium frequency induction heating machine

Automobile steering knuckle is a more important part of the automobile. It mainly bears the bending load, that is, the bending and torsional stress. Its characteristic is that the stress distribution on the cross section is uneven. In addition, the maximum stress is concentrated on the outer edge of the part, and the stress becomes smaller as it goes to the inside. For this reason, automobile steering knuckles are required to have high hardness, wear resistance and service life. We often use medium frequency induction heating machines for quenching heat treatment to meet their requirements.

After the blank is machined, the shaft diameter, fillet, and end face of the steering knuckle are subjected to medium frequency induction hardening at the same time. The hardness is 52-63HRC, the depth of the hardened layer is 3-5mm, and the structure is fine needle-shaped martensite. The steering knuckle of the part has many processing procedures, and it may become a waste product due to improper process and poor material. Therefore, in the actual manufacturing process, most of the waste products appear in the heat treatment process of forging and quenching and tempering.

Performance characteristics of Zhengzhou Gou's medium frequency induction heating machine

1. The efficiency of the whole machine is high, and the efficiency of the whole machine can reach more than 85%.

2. High reliability, with a unique circuit design, the power module unit used constitutes the system, even if a single power module unit is damaged, it will not cause equipment work interruption, so that the reliable operation of the equipment has been substantially improved.

3. Realize large capacity, and the power of a single machine can reach more than 200kw.

4. The output power is easy to adjust, the response speed is fast, the control is accurate, and the heating conditions can be selected arbitrarily.

5. Low failure rate, low working voltage (380V), high safety factor, convenient use, inspection and maintenance.

6. Due to the use of energy-saving devices, the whole machine has a long life.。

7. Energy saving: Compared with the electronic tube high-frequency induction heating equipment of the same power level, it can save more than 50% of electricity and more than 70% of water.

8. Simple structure, small footprint and light weight.