表面层氮化法
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For obtaining high surface hardness and great thickness, the main factors which affect the nitriding layer structure and properties were analyzed, and the optimized parameters were obtained.
以获得较高表面硬度和渗层厚度为依据，分析影响渗氮层结构和性能的主要工艺因素，确定出最佳工艺参数。
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