Nitriding develops extreme hardness in the surface of steel. This hardness ranges from 900 to 1,100 Brinell, which is considerably higher than that obtained by ordinary case hardening.
渗氮在钢表面获得远远超出正常标准的硬度。其硬度范围为900到1,100布氏硬度，这远高于普通表面硬化所获得的硬度。
QPQ technology is a surface treatment technology which consists essentially of liquid nitriding and liquid oxidizing.
QPQ技术是一种主要包括盐浴渗氮和盐浴氧化的表面处理技术。
The surface invalidation of H13 hot extruding gear die is analyzed, ion nitriding is used in order to improve H13 hot extruding gear die life.
对H13热挤压齿轮模的表面失效进行了分析，为提高H13热挤压齿轮模的寿命对其进行了离子渗氮。
In general it is thought that nitriding may be slightly change the total geometric figure of metal parts by the micro-changing of the physical and mechanical properties of part surface.
通常认为，渗氮导致零件表面的物理及力学性质的微小变化，从而导致零件整体几何形状的变化。
Two surface heat-treatment processes, liquid nitriding and sulfurizing, are used to compare with the current production process of liquid carburizing, with other variables remaining constant.
两种表面热处理液体渗氮及渗硫工艺与现行生产上原采用之液体渗炭淬火处理工艺，在尽量保持其他可变数不变的情状下加以比较。
The effect of surface roughness on nitriding surface quality is also studied in this paper.
另外，也对表面粗糙度，氮化表面质量的影响作了探讨。
The status and development trend of surface treatments, such as nitriding, vapor deposition, plasma modification and multiplex surface treatment technology used for cutting tools were described.
介绍了渗氮、超低温处理、气相沉积、等离子改性以及复合表面处理技术等在切削刀具中的应用现状和发展趋势。
The results indicate that it has visible effect on restraining arc discharge and hollow cathode discharge as well as ion nitriding on high-chrome steel material surface.
结果表明，交流脉冲放电在抑制弧光放电和空心阴极效应方面是非常有效的，对于高铬钢材料表面的离子渗氮作用是明显的。
Cracks leading to spalling were initiated at surface defects and boundaries between nitriding layes and the core.
导致剥落的疲劳裂纹开始于表面缺陷和氮化层与心部交界处。
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。
The vickers hardness and nitriding surface fulfill requirements, and also improves the machining quality of the products.
主轴锥孔的维氏硬度和氮层深度均达到要求，提高了产品的加工质量。
The results show that the surface hardness wearable and service properties may increase significantly by nitriding into the steel . It can satisfy the technological standard of the factory.
结果表明，渗氮后明显提高钢的表面硬度、耐磨性和使用寿命，满足了工厂提出的技术要求。
The results show that the surface hardness wearable and service properties may increase significantly by nitriding into the steel . It can satisfy the technological standard of the factory.
结果表明，渗氮后明显提高钢的表面硬度、耐磨性和使用寿命，满足了工厂提出的技术要求。
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