By investigating the relations of hardness difference to wear rate, the best friction pair mate was ascertained.
研究了配副硬度差与磨损率的关系，根据这种关系确定了最佳配副组合。
Compared with base metal, the microstructure in fusion zone is finer, and the hardness is higher. The hardness difference exists at various places in fusion zone.
与母材相比，焊缝区组织细小，硬度较高，焊缝区不同部位的硬度存在一定差异。
The influence of hardness difference on the wear behaviour of steel-steel worm gear's material is investigated, which provides a foundation for proper hardness matching.
探讨了硬度对钢蜗轮副材料磨损特性的影响，为研究钢蜗轮副合理的硬度配对提供试验依据。
The influence of hardness difference on the wear behaviour of steel-steel worm gear's material is investigated, which provides a foundation for proper hardness matching.
探讨了硬度对钢蜗轮副材料磨损特性的影响，为研究钢蜗轮副合理的硬度配对提供试验依据。
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