本发明是关于钢材氮碳共渗的方法。传统的气体氮化多年来一直被大量使用,且公认它有很多优点;1)表面硬度可高达1000Hv,因此有高抗磨损和擦伤能力。2)氮化层内的压应力大大提高了材料的疲劳抗力。3)氮化温度低于氮化钢的回火温度故不影响心部强度。而且变形小、尺寸变化小、表面光洁度高。但它有两个主要缺点:1)产生“白层”,深度常有0.001～0.0015时,它是Fe_4N(γ′)和Fe_(2-3)N(ε)的双相结构,很脆,使用中有剥落倾向。为此常需进行昂贵的消除“白层”工序。2)处理 The present invention relates to a method of nitrocarburizing steel. Traditional gas nitriding has been extensively used over the years and is recognized for its many advantages; 1) Surface hardness up to 1000 Hv, resulting in high resistance to abrasion and abrasion. 2) The compressive stress in the nitride layer greatly improves the fatigue resistance of the material. 3) nitriding temperature is lower than the tempering temperature of nitrided steel so it does not affect the strength of the heart. And small deformation, small size changes, high surface finish. However, it has two main disadvantages: 1) it produces a “white layer” with a depth of 0.001 to 0.0015, which is a two-phase structure of Fe_4N (γ ’) and Fe_ (2-3) N Peeling off tendency to use. For this often need to eliminate expensive “white layer” process. 2) Processing