采用氩弧局部强化可提高环槽的硬度和高温耐磨性。
Application of argon arc local strengthen can increase hardness and high-temperature wear resistance of the ring groove.
硬块。通常由于局部淬火引起钢管上某一部位硬度值远高于周围金属的硬度值。
Hard Spot. An area in the pipe with a hardness level considerably higher than that of the surrounding metal, usually due to localized quenching.
硬度是材料抵抗局部塑性形变的量度。
Hardness is a measure of the resistance to localize plastic deformation.
局部淬火处理的齿轮具备比心部组织硬度高的表面硬度。
The case hardening process results in gears that have much harder surfaces than cores.
文章对存在此现象的钢材切割面进行了系统的分析，找出引起钢材硬度局部增大的原因。
As the result reasons for its phenomena were found that there were bigger size and rigid inclusions in part area of the steel and thus raised hardness of that part of the steel.
文章对存在此现象的钢材切割面进行了系统的分析，找出引起钢材硬度局部增大的原因。
As the result reasons for its phenomena were found that there were bigger size and rigid inclusions in part area of the steel and thus raised hardness of that part of the steel.
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