磨削烧伤使表面硬度下降，磨损加剧。
The grinding burn causes the surface hardness falling off and wear speeding up.
描述强度的一种最简单方法是以表面硬度来表示。
One simple way of describing strength is in terms of surface hardness.
磨削热导致回火引起淬硬钢磨削后表面硬度变化。
Tempering resulting from grinding heat caused surface hardness changes of hardened steels after grinding.
因此，辊子需要较高的表面硬度和较深的硬化层深度。
Thus, these rolls require a higher surface hardness and must be hardened to a greater depth.
得出的结轮是提高压头压下速度能提高砂型表面硬度。
Thus we got a conclusion that increasing the velocity of pressing can increasing the hardness of sand mould surface.
分析了工厂网带炉条件下淬火织针表面硬度不足的原因。
Analyse the reason that surface hardness of quench needle is not enough under original production technology circumstance of factory.
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.
为增加切削刀具表面硬度引入了钻石化学蒸发沉淀涂层工艺。
Diamond CVD coating process is introduced to increase the surface hardness of cutting tools.
认为激光硬化处理能够有效地改善材料的表面硬度和耐磨性。
The laser hardening material can effectively improve the surface hardness and wear resistance.
离子注入后，尼龙6表面硬度提高与离子能量损失机制有关。
Surface hardness improvements of Nylon 6 implanted with ions were linked to mechanism of energy loss of ions.
磨削深度是影响工件表面硬度和磨削淬硬层厚度的主要因素。
The effect of grinding depth on work piece surface hardness and hardness layer depth is important factor.
通过合并磨削热模型和回火效应可以预测工件磨削后的表面硬度变化。
Combining the tempering behavior with the grinding thermal model, the change in surface hardness due to grinding heat could be predicted.
另外，研究了消失模铸造法铸型表面硬度、界面换热系数的变化规律。
Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.
通过合并磨削热模型和回火效应，可以预测工件磨削后的表面硬度变化。
Combining the tempering behaviour with the thermal model of grinding, the change in surface hardness due to grinding heat can be predicted.
本文研究了离子注入对钢的表面硬度、光反射率和高温氧化性能的影响。
In this paper, we report on the modification of surface hardness, optical reflectivity, and high temperature oxidation behaviour of ion-implanted steel samples.
结果表明，激光硬化处理的表面能够有效地改善材料表面硬度和耐磨性。
The results show, surface treated by laser hardening can improve the surface hardness and wear resistance.
爪形和环形断裂由表面硬度偏高造成，并提出解决断裂问题的合理化建议。
Ungula and ring fracture are due to higher surface hardness. The rational suggestions to settle fracture are put forward.
土壤摩擦力还随固体表面光洁度降低而增加，随表面硬度增加而趋于减小。
The friction increases with the decrease in solid surface finish and tends to decrease with the increase in its surface hardness.
为此，SKF研制了材料表面处理工艺，可增强表面硬度，并产生压应力。
For this, SKF developed material finishing technology, can enhance exterior hardness, arise press stress.
通过改变组分配比，研究水泡前后材料表面硬度的变化，筛选出最佳配方。
The surface hardness of the materials having different compositions before and after absorbing water was studied, and the best formula was determined.
结果表明：曲轴基体硬度和冷却方式对共渗层表面硬度的提高有着直接的影响。
The result showed that hardness of crankshaft and cooling way had direct influences on enhancement of surface hardness of nitrocarburizing layer.
测量渗氮零件表面硬度时，压痕往往只存于白亮层之中，故只测得白亮层的硬度值。
When determining the surface hardness of nitrided parts, the indentation usually exists in white layers and it is the hardness of white bright layers.
即使所有其它条件保持不变，随着要淬火的零件尺寸的增加其表面硬度也会有所下降。
As the size of parts to be hardened increases, the surface hardness decreases somewhat even though all other conditions have remained the same.
摩擦学测试表明渗氮样品不仅摩擦系数大大降低了，而且表面硬度也获得了显著提高。
Tribological tests reveal that the friction coefficients of the nitrided samples are greatly reduced, and the surface hardness is remarkably improved at the same time.
本文主要针对陶瓷材料磨削表面残余应力对疲劳磨损和表面硬度的影响进行实验研究。
Effect of surface residual stresses by ceramic grinding on fatigue wear property has been researched by experiment.
介绍采用热化学共渗法对硬质合金拉丝模芯进行超硬化处理，以提高其表面硬度的方法。
The article introduces the method of superhardening treating hard alloy drawing die core with thermochemistry copermeation method so as to improve its surface hardness.
系统研究了材料的组成对表面硬度、透光率、冲击强度、热变形温度、密度等性能的影响。
The effects of componets and contents on surface hardness, impact resistance, defromation start temperature, density an so on were systematically studied.
通过铸造表面合金化和复合变质处理，使中锰奥氏体钢的强度、韧性和表面硬度显著提高。
The strength, toughness and surface hardness of medium Manganese austenitic steel have been increased greatly by casting surface alloying and complex modification.
经渗碳及淬火后，具有表面硬度高、心部韧性好的特点、冷变形塑性中等，切削加工性好。
Carburizing and quenching, with high surface hardness, good toughness characteristics, the heart of cold plastic deformation of medium, cutting is good.
随着加工温度升高，工件表面逐渐产生回火马氏体，这是造成工件表面硬度下降的主要原因。
Tempered martensite was gradually generated as the cutting temperature increased, which is the main cause of the decrease in the hardness.
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