In the cast iron products on the basis of the gradual improvement of the quality level, in recent years, but also its surface treatment technology proposed a higher development requirements to improve the anti-wear properties of cast iron, to extend the service life.
According to experts, steel induction heating quenching, laser heating quenching and soft nitriding process are applicable to the cast iron industry surface treatment technology. Such as laser heating cast iron pieces of heating speed, air-cooled workpiece can form a layer of high-carbon martensite hardening layer, and thus greatly enhance the wear resistance. Or can also use soft nitriding technology to deal with cast iron, so that the surface layer of e-phase compound (Fe2-3N) high hardening layer, not only high hardness, while the friction coefficient is small, so cast iron pieces of anti-wear ability greatly improved The