Carburizing + nitriding + carbonitriding surface treatment process
Carburizing and nitriding generally refers to the surface chemical heat treatment of steel.
Carburizing must be done with low carbon steel or low carbon alloy steel. Can be divided into solid, liquid, gas carburizing three kinds. Widely used gas carburizing, heating temperature 900-950℃. The carburizing depth mainly depends on the holding time, which is generally estimated at 0.2-0.25mm per hour. Surface carbon content up to 0.85-1.05 per cent. After carburizing must heat treatment, commonly used after quenching low temperature tempering. The wear-resistant and impact resistant parts with high hardness and toughness of the surface core are obtained.
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