Application of Induction Heat Treatment Technology

1. Automobile manufacturing industry
Induction heat treatment technology is most widely used in the automobile industry. Induction heating and quenching of automobile parts has risen to about 50% of all heat treated parts. In addition to improving the wear resistance of parts, induction hardening aims to improve the rotary fatigue strength and bending fatigue strength of parts. Typical parts include crankshaft, camshaft, flywheel ring gear, half shaft, constant velocity universal joint, transmission fork, transmission shaft, cross shaft, shock absorber shaft, etc.

2. Tractors and construction machinery
Except that the quenched parts of the engine are similar to those of the automobile engine, there are many induction quenched parts in the walking part; Such as driving wheel, guide wheel, roller, chain rail link, pin, sleeve, water pump shaft, valve rocker arm Blade of bulldozer, final transmission gear of tractor, etc.

3. Machine tool manufacturing industry
In the machine tool manufacturing industry, induction hardened parts include the transmission gear of the headstock, the spindle, the transmission fork, the guide rail surface and the wear-resistant parts of various small parts.

4. Heavy machinery
Induction heat treatment parts of heavy machinery include: transmission large module gear, shovel tooth plate of excavator.

5. Bearing industry
The proportion of induction hardening used for railway bearings is increasing year by year, especially for the raceways of large bearing rings.

6. Railway transportation
The full length quenching of 60kg and above rails is one of the main ways to improve their strength and toughness. The Ministry of Railways has established more than 10 induction hardening production lines for rails. In addition, induction hardening is applied to locomotive parts, such as crankshaft, gear, shaft, etc,

7. Oil drilling rig
Induction hardening is adopted for oil pipes, sucker rods and couplings used in petroleum industry.

8. Metallurgical machinery
The roll adopts dual frequency induction hardening to achieve the best heating depth, and other products, such as large module gear, steel pipe weld annealing or tempering.

9. Textile machinery

Spindle bar and other parts of the spinning machine are induction quenched and tempered. 

10. Building materials

It mainly includes prestressed reinforcement quenching and weld annealing.

11. Shipbuilding industry
The crankshaft of marine engine adopts induction hardening and tempering, and induction heating can also be used for heat correction of steel plate distortion.