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What is annealing?
May 02, 2018

What is annealing?

Heat the steel to a certain temperature and heat it at this temperature, then slowly cool to room temperature.

Annealing has complete annealing, spheroidizing annealing, destress annealing, etc.

A will heat the steel to the predetermined temperature, keep it warm for a period of time, and then follow the slow cooling of the furnace, which is called complete annealing. The purpose is

Reduce the hardness of steel, eliminate uneven structure and internal stress in steel.

B, heat the steel to 750 degrees, keep it warm for a period of time, slowly cool down to 500 degrees, and finally in the air.

Cooling is called spherification annealing. The purpose is to reduce the hardness of steel and improve cutting performance, mainly for high carbon steel.

C, the stress annealing is also called low temperature annealing, heating the steel to 500 ~ 600 degrees for a period of time.

The furnace is cooled to below 300 degrees and cooled at room temperature. In the annealing process, the organization does not change, mainly eliminating gold.

Internal stresses of the genus.

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