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一、氮化 氮化是钢的表面硬化法之一,此法是使氮渗透、扩散在钢的表面,与钢中的A1、Cr、Mo、Ti等形成硬的氮化物的硬化表面的技术。其特点如下: (a)与淬火(HV=540)、渗碳(HV=720)相对而言,表面硬度非常硬。例如,若将SKD61氮化,则HV(威氏硬度)约是1000。但是,不及最新技术的CVD处理的HV=2500。 (b)由于处理温度是在400～580℃的低温下进行,而CVD是在1000℃下处理,
Nitriding and nitriding are one of the surface hardening methods for steel. This method is a technique that allows nitrogen to penetrate and diffuse on the surface of a steel and form a hardened surface of a hard nitride with Al, Cr, Mo and Ti in steel . Its characteristics are as follows: (a) Surface hardness is very hard in comparison to quenching (HV = 540), carburization (HV = 720). For example, if SKD 61 is nitrided, the HV (Vickers hardness) is about 1000. However, HV = 2500, which is less advanced than the CVD of the latest technology. (b) Since the treatment temperature is carried out at a low temperature of 400 to 580C and the CVD is performed at 1000C,