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。
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。
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 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。
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。
Meanwhile, high surface hardness after heat treatment, the coating surface formed into the amorphous and crystalline mixture, the hardness is up to 1200hv.
同时表面硬度高，经热处理后，其镀层表面形成非晶态和晶态的混合物时，硬度可达1200 HV。
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。
Diamond CVD coating process is introduced to increase the surface hardness of cutting tools.
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。
Surface hardness improvements of Nylon 6 implanted with ions were linked to mechanism of energy loss of ions.
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。
Glass fiber encryption tensile strength increases, the more enhance bubble board with size, surface hardness and easy construction land mark fixed tube.
玻璃纤维加密抗张强度增大，更增强泡沫板硬度，表面带有尺寸标记，易于施工固定地热管。
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。
New environment-friendly water-based varnish: excluding ketones, volatile organic compounds were very low; durability and good abrasion resistance, surface hardness of up to 2H.
新型环保水性清漆：不含酮，有机挥发物含量极低；耐久性和抗磨损性好，表面硬度可达2H。
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。
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。
The experiment shows that it can improve metal surface hardness and prolong service life of parts and increase the stress.
经试验证明可以大大提高金属表面的硬度、零件的使用寿命及其受力情况。
All requirements of high surface hardness and resistance, good toughness and center of all steel products to carburizing.
凡是要求表面具有较高的硬度和耐磨性，而中心具有良好韧性的所有钢制品都要进行渗碳。
The article introduces the method of superhardening treating hard alloy drawing die core with thermochemistry copermeation method so as to improve its surface hardness.
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。
Carburizing and quenching, with high surface hardness, good toughness characteristics, the heart of cold plastic deformation of medium, cutting is good.
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。
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。
The strength, toughness and surface hardness of medium Manganese austenitic steel have been increased greatly by casting surface alloying and complex modification.
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 effects of componets and contents on surface hardness, impact resistance, defromation start temperature, density an so on were systematically studied.
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 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。
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 surface hardness, carburized structure and thickness of the carburized layer on the TiAl-alloy obtained through the different carburization technologies was studied.
试验研究了钛铝基合金离子渗碳后的渗层组织结构、渗碳温度和时间对渗层厚度、表面硬度的影响。
The product exhibits excellent clarity, toughness, chemical resistance, surface hardness, mar resistance, dimensional stability, and UV light screening properties.
该产品具有优良的透明度，韧性，耐化学性，表面硬度，抗磨损，尺寸稳定性，和抗紫外线等特点。
It may be used effectively in deburring, reducing the value of surface roughness, chamfering. improving conditions of surface residual stress and surface hardness and reducing greatly microdefects.
它的使用可以有效地去除毛刺，降低表面粗糙度值，棱边倒圆，改善表面残余应力状况，提高表面硬度，大幅度减少微观缺陷。
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。
Author used laser beam to quench the surface of the ore milling roller, so that increase its surface hardness and improve its wear resistance properties, and prolong its service life.
笔者对磨辊表面进行激光束淬火处理，以提高磨辊的表面硬度，增强磨辊的抗磨粒磨损性能，从而达到延寿的目的。
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。
The surface hardness variations of some kinds of polymers were compared and the influence factors such as ion species, particle energy and dose were analyzed.
通过比较几种不同类型的聚合物材料在注入前后表面硬度的变化，分析注入离子种类、注入能量、注入剂量等工艺参数对聚合物的影响。
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