Steel surface nitriding 金属表面氮化
Laser surface nitriding 激光表面氮化
surface nitriding treatment 表面氮化处理
surface layer nitriding 表面层氮化法
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.
Q PQ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。
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