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。
Grinding hardening, the technology of hardening steel piece surface with grinding heat instead of high or medium frequency induction hardening heat, can integrate grinding surface hardening.
磨削强化处理技术是利用磨削热替代高、中频感应淬火热源对钢件表层进行强化处理，将磨削加工与表面强化合为一体。
This paper reviews the steel grades for the quenching - tempering and surface - hardening gears.
介绍了国内外调质表面淬火齿轮用钢的情况。
Derusting, oxide skin removing and surface hardening for copper castings, sheet metal, stainless steel strips, aluminum castings.
铜合金铸件，薄板、不锈钢带、铝合金铸件除锈、除氧化皮及表面强化。
The Super carburization process can provide outstanding performance in the surface hardening of high-alloyed steel.
过渗碳处理可以有效提升高合金工具钢的表面特性。
The surface hardening of 40cr steel was performed on a surface grinder by transverse feed grinding; the changing trends of microstructure and wear behavior of surface hardened layer were researched.
在平面磨床上对非淬硬钢进行了磨削硬化处理，研究了磨削方式和冷却条件对表面硬化层的影响。
Induction surface hardening of the workpiece material is usually carbon steel.
感应加热表面淬火的工件材料一般为中碳钢。
Induction surface hardening of the workpiece material is usually carbon steel.
感应加热表面淬火的工件材料一般为中碳钢。
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