Induction Machine For Steering Rack Hardening
The equipment description:
Automotive steering rack tooth surface hardening a direct impact on the quality of their useful life. The world generally use the longitudinal magnetic field induction heating induction heating quenching and complex magnetic field quenching of two ways. Domestic induction heating equipment adopts the former, due to induced magnetic field uniformity, resulting in tooth and tooth root induced current uneven, resulting in quenching temperature, hardness of hardened layer uneven; Hardened layer thickness, deformation large; Efficiency low seriously flawed. Composite magnetic induction heating method is the high-frequency current simultaneously in tooth and tooth root to generate longitudinal and transverse magnetic field, making the tooth root on the tooth surface and produce uniform induced currents to ensure good homogeneity of the heating temperature and high efficiency. Now there were only a handful of companies to spend huge amounts of money from abroad quenching complex magnetic induction heating equipment, most of the enterprises are still using a single magnetic induction heating quenching method, product quality, there are significant flaws.
� Adopt longitudinal and transverse magnetic induction heating quenching compound.
� High heating efficiency, high speed, only need 6 seconds/pieces.
� The hardening layer hardness distribution is uniform.
� Power consumption is small.
� Tooth face edges and intermediate place is correspondent,
� Dedendum hardening layer can accurately control.
� Deformation is small.
Through high frequency power supply, electrical contacts and induction coil connect circuits. The sample above the induction coil becomes induction heating body. In this way, the surface of workpiece not only heated by longitudinal magnetic, and still can be heated by the transverse magnetic field. Achieve the uniform heating purpose. To change different induction coil can heat the different shapes workpiece surface. Compared with the traditional high-frequency heating method.The surface of workpiece heating current is more centralized, density is greater, heating speed is much faster. In this way, heating workpiece surface power density is the traditional induction heating several times. Can implement efficient high quality heat treatment on the workpiece surface.
Put the rack on the induction coil, cylinder decline, press the rack firmly, induction electrode, rack connects with the induction coil. Induction coil and rack distance can be adjusted according to the requirement. Vertical and horizontal magnetic composite induced current generated at the same time on the tooth surface heating. Heating at a very fast rate, control the heating time. After achieving the temperature, equipment will stop heating. Can spray quench fluid to tooth surfaces automatically. Complete a hardening process.