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Shenzhen Su's heat treatment summary: pinion nitrogen methanol atmosphere nitrocarburizing process

Editor：    Date：2014-09-01 16:12:58    Views：6366

(1) 20CrMnMo steel small gear by using nitrogen methanol atmosphere at 860 ℃ carbonitriding, ammonia accounted for about 3%, the total volume of furnace gas carbon potential 0.8% more appropriate. The nitrogen methanol atmosphere of Carbonitriding with energy saving, environmental protection, safety, low cost and fast penetration advantages.
(2) the small gear carbonitriding after re heating quenching, the layer has higher strength and hardness, and can make the core hardness meet the technical requirements, the plasticity and toughness. Temperature and quenching temperature carbonitriding for use low, control of quenching cooling rate plus, workpiece distortion decreases.

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