How about the heat treatment for bearings
Angela Chen
Bearings,wheel hub assembly Product Manager at Hangzhou Motion Auto Parts Co.,Ltd
What is heat treatment?
Heat treatment is the method by which metal is heated and cooled in a series of specific operations, without melting it. The purpose of heat treatment is to make a metal more useful by changing or restoring its mechanical properties. By heat treating, a metal can be made harder, stronger, and more resistant to impact.Also, heat treating can make a metal softer and more ductile.
3 Steps Of Heat Treatment Process
Stage 1 – Heating the metal slowly to ensure a uniform temperature
Stage 2 – Soaking (holding) metal at a given temperature for a given time and cooling the metal to room temperature
Stage 3 – Cooling the metal to room temperature
The various types of heat-treating processes all involve the heating and cooling; they differ in the heating temperatures and the cooling rates used and the final results. The usual methods of heat-treating ferrous metals (metals with iron) are annealing, normalizing, hardening, and tempering. Most nonferrous metals can be annealed, but never tempered, normalized, or case-hardened.
