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Question:

There are low carbon steel gears and medium carbon steel gears each

There are low carbon steel gears and medium carbon steel gears. In order to make the gear surface have high hardness and wear resistance, what heat treatment method should be chosen?

Answer:

After the nitriding of medium carbon steel, the surface layer should be a little layer of compound and diffusion layer, and the core is a tempered bainite (or a small amount of free ferrite).
After carburizing and quenching, the surface strength and wear resistance of the low carbon steel are remarkably improved, and the core of the low carbon steel has a higher impact resistance. The carburized and quenched layer is a fine martensite structure, and the core of the heart is a balanced structure of ferrite and pearlite
Low carbon steel by carburizing gear, after quenching treatment of tooth surface strengthening; steel gear can be nitrided quenched, or directly used in high frequency heating and quenching enhancement (depending on the specific material and modulus change)

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