The laser hardening material can effectively improve the surface hardness and wear resistance.
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 results showed that the steel after combined treatment had higher surface hardness and wear resistance, and prolonged the service life of cutting tool.
结果表明，该钢经复合处理后，具有较好的表面硬度和良好的耐磨性，显著地增加了刀具的使用寿命。
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.
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。
One simple way of describing strength is in terms of surface hardness.
描述强度的一种最简单方法是以表面硬度来表示。
Suggestion: pump shaft or protective set of surface hardness to achieve 60hrc.
建议：泵轴或防护套的表面硬度要达到60hrc。
The grinding burn causes the surface hardness falling off and wear speeding up.
磨削烧伤使表面硬度下降，磨损加剧。
After drying, the workpiece surface hardness will be increased, smooth and beautiful.
干燥后，涂装物表面硬度提高，光洁亮丽。
Thus, these rolls require a higher surface hardness and must be hardened to a greater depth.
因此，辊子需要较高的表面硬度和较深的硬化层深度。
The effect of grinding depth on work piece surface hardness and hardness layer depth is important factor.
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。
Tempering resulting from grinding heat caused surface hardness changes of hardened steels after grinding.
磨削热导致回火引起淬硬钢磨削后表面硬度变化。
The results show, surface treated by laser hardening can improve the surface hardness and wear resistance.
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。
Moreover, the variation law of mold surface hardness and interface heat transfer coefficient were studied.
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。
During the past 20 years, several processes have been introduced to obtain enhanced surface hardness of steels.
在过去的20年里，一些工艺被引入用来提高钢的表面硬度。
Experiments show that this is a good method of increasing the surface hardness of the needle cloth-making part.
试验表明，此法是提高针布齿的硬度的一个好途径。
The surface hardness and wear resistance of aluminum alloy are both improved by means of scanning electron beam.
电子束表面处理可以提高铝合金材料的表面硬度、增加耐磨性。
Gd3 + -containing organic glass had better transparency, solvent resistance, surface hardness and heat resistance.
含钆有机玻璃具有较好的透明性、耐溶剂性、表面硬度和耐热性。
A high surface temperature, longer austenitization duration and the rapid cooling rates result in high surface hardness.
表面温度高、奥氏体化时间相对较长及冷却速率快导致了表面的高硬度。
Ungula and ring fracture are due to higher surface hardness. The rational suggestions to settle fracture are put forward.
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。
The relationship between the surface hardness of ferromagnetic material and the intensity of Barkhausen noise was studied.
通过实验研究了巴克豪森噪声强度与铁磁材料表面硬度之间的关系。
The friction increases with the decrease in solid surface finish and tends to decrease with the increase in its surface hardness.
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。
Analyse the reason that surface hardness of quench needle is not enough under original production technology circumstance of factory.
分析了工厂网带炉条件下淬火织针表面硬度不足的原因。
Combining the tempering behavior with the grinding thermal model, the change in surface hardness due to grinding heat could be predicted.
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。
The influence of filling coefficient on mechanical properties, including surface hardness, impact and flexural strength, are investigated.
考察了填充系数对力学性能的影响，包括表面硬度、冲击强度和弯曲强度。
Combining the tempering behaviour with the thermal model of grinding, the change in surface hardness due to grinding heat can be predicted.
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。
As the size of parts to be hardened increases, the surface hardness decreases somewhat even though all other conditions have remained the same.
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。
The result showed that hardness of crankshaft and cooling way had direct influences on enhancement of surface hardness of nitrocarburizing layer.
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 effect of rare-earth elements, RE content, temperature and time on the penetrated depth, surface hardness and its distribution was investigated.
研究了稀土及稀土加入量、共渗温度、共渗时间对共渗层厚度、表面硬度及其分布的影响。
The surface hardness of the materials having different compositions before and after absorbing water was studied, and the best formula was determined.
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。
With high surface hardness and sound glossiness and weather resistance properties, these resins are suitable for the manufacture of polyester plywood.
具有表面硬度高、耐候性好等特点，适用于制作宝丽板。
With high surface hardness and sound glossiness and weather resistance properties, these resins are suitable for the manufacture of polyester plywood.
具有表面硬度高、耐候性好等特点，适用于制作宝丽板。
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