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What are the high frequency quenching?

What are the high frequency quenching?

Quenching is a kind of heat treatment, including general quenching, pulse quenching and isothermal quenching.

Generally, quenching makes the workpiece have a certain microstructure to ensure that a certain section meets the required mechanical properties after tempering. Can improve hardness and strength; increase wear resistance.

Pulse quenching is to heat the workpiece in a very short time (such as 1/1000 second) with the help of the high energy of the pulse, and cool it very quickly, which can obtain extremely fine grains and high hardness, no deformation, no oxide film, Wear-resistant and corrosion-resistant. No tempering is required after quenching.

Austempering is to heat the workpiece to the quenching temperature, and then put it in a warm salt bath that causes a certain structure to transform for a period of time to obtain bainite and other structures, so that it has higher strength and toughness. The quenching stress is small, which can prevent denaturation and cracking. Suitable for thin and larger size parts.