This surface has extreme hardness (60 RC. ), excellent wear and corrosion resistance, and low coefficient of friction.
这表面有极高的硬度（60局。），耐磨性和耐腐蚀性，低摩擦系数。
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。
It shows that the composites' tensile strength and elongation decrease while the hardness and friction coefficient increase with the addition content of graphite.
结果表明，随着石墨添加量的增加，复合材料的抗拉强度和伸长率逐渐下降，硬度逐渐上升，摩擦系数逐渐变大。
Hardness and friction coefficient of the three composites were determined to investigate the influence of particle type and content.
研究了颗粒性质和含量对复合材料硬度、摩擦系数和耐磨性能的影响。
The tube surface has extreme hardness (60 RC.), excellent wear and corrosion resistance, and low coefficient of friction.
管表面有极大的硬度(60钢筋混凝土。)，良好的耐磨性和耐腐蚀性，低摩擦系数。
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。
The effects of metal base content and NiCr alloy addition on hardness, friction coefficient and wear rate of the composites were studied.
研究了金属基体及其中镍铬合金的含量对复合材料的硬度、摩擦系数和磨损率的影响。
The coupling agent can evidently increase impact strength of the composite. Coupling agent, lower the hardness and friction coefficient o…
这种偶联剂使复合材料的抗冲击强度明显提高、硬度降低、耐磨性有较大的提高而摩擦系数略有降低。
These kind of cutting tools have high hardness, good wear-resistance, low friction coefficient, can be used for high surface finishes machining of non-ferrous.
金刚石膜刀具和聚晶金刚石刀具硬度高，耐磨性好、磨擦性好、磨擦系数小、抗粘接性强，用于有色金属的高光洁度加工。
The invention is high in compressive strength, good in hardness and not easy to fall off; the product has small coefficient of thermal conductivity and good thermal conservation performance.
本发明抗压强度高，涂料较硬，不易脱落，产品的导热系数较小，保温性能良好。
The invention is high in compressive strength, good in hardness and not easy to fall off; the product has small coefficient of thermal conductivity and good thermal conservation performance.
本发明抗压强度高，涂料较硬，不易脱落，产品的导热系数较小，保温性能良好。
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