Why do so many manufacturers choose Zhengzhou Gou's medium frequency induction quenching equipment to perform quenching heat treatment on ring gears?

The flywheel ring gear is heated and set on the outer edge of the flywheel. After cooling, it is fastened to the outer edge of the flywheel. It is used to mesh with the starter gear, drive the crankshaft to rotate, and start the important parts of the engine. It can be seen from the working environment of the ring gear that the ring gear requires high wear resistance and high hardness. At present, many manufacturers use Zhengzhou Gou's medium frequency induction quenching equipment to quench them to meet their working performance requirements. Today, I will tell you about the heat treatment process of quenching the ring gear with medium frequency induction quenching equipment and the unique advantages of quenching the ring gear with Zhengzhou Gou's medium frequency induction quenching equipment.

Flywheel ring gears are often made of 45 or 40Cr steel. Today, we are introducing the induction hardening process of ring gears made of 45 steel and m=4m. When the engine starts, the flywheel ring gear is rotated by the engagement gear, and the tooth surface is subject to friction and impact. Therefore, the tooth surface is required to have high wear resistance and can withstand a certain impact load. Therefore, the tooth surface hardness is required to be 41 to 49HRC. . The processing process includes forging blank - normalizing - mechanical processing - medium frequency induction heating, surface quenching - self-tempering - fine grinding - finished product.

The purpose of induction heating surface quenching of the flywheel ring gear is to ensure high hardness and high wear resistance of the tooth surface of the ring gear. Since it is full tooth hardening, and the depth of the hardened layer at the tooth root should be >1mm, the hardened layer is deep, so medium frequency quenching must be used. We generally choose a medium frequency power supply with a frequency of 8kHz and 200kW. The ring gear adopts one-time heating and rotation quenching. After heating, spray liquid once and control the spray time to obtain self-tempering. The quenching liquid generally uses water between 15 and 30°C.

Why do so many manufacturers choose Zhengzhou Gou's medium frequency induction annealing equipment to quench the ring gear? The unique advantages of Zhengzhou Gou's medium frequency induction heating equipment are:

1. Increase heating speed and efficiency.

2. Save energy

3. The working environment of workers can be improved

4. It can save more power and energy and reduce costs. Its power consumption is 60% lower than that of traditional high-frequency equipment and 20% lower than that of silicon-controlled medium frequency equipment.

5. Quenching, the quenching layer is uniform and the temperature is uniform.

6. When the ring gear is quenched, there will be no oxidative decarburization or little oxidative decarburization.

7. Unique cooling circulation system allows the equipment to work uninterrupted 24 hours a day.

If you want to know more about Zhengzhou Gou's induction heating equipment, you can call us for consultation.