耐磨性

High hardness and high wear resistance can be made for TiN coating on pure Ti by laser nitriding.

用激光氮化的方法在纯钛基体表面可以得到高硬度、高耐磨性的TiN涂层。

Exceed high molecular weight polyvinyl (English curtailment UHMW-PE )be thermoplastic engineering plastics it integrative all plastics's high-performance, but endure impulsive ,anti-abrasive ,endure chemistry eat away, oleiferous inhouse ,absorb impulsive energy this 5 piece behavioural is now deposit that is among plastics all tiptop numerical value.

超高分子量聚乙烯（英文缩写UHMW-PE）是热塑性工程塑料。它综合了所有塑料的优越性能，而耐冲击、耐磨性、耐化学腐蚀、自身润滑、吸收冲击能这五个特性乃是目前既存塑料中所有的最高数值。已成为一种引人注目的完全新型的产品。

Zirconium silicate has higher refractive index 1.93～2.01, enjoys sound chemical stability. It's a quality and cheaper opacifier finding widespread application in manufacturing various building ceramics, sanitarty ware,daily ceramic products,and high-quality ceramic products.

硅酸锆的折射率高1.93-2.01，化学稳定性能好，是一种优质、价廉的乳浊，被广泛用于各种建筑陶瓷、卫生陶瓷、日用陶瓷、一级工艺品陶瓷等的生产中，在陶瓷釉料的加工生产中，使用范围广，乳浊行，流动行好，具有较强的耐磨性和增白作用。

Applicable scope:overground and underground high stringent concrete project.

适用范围：应用于地上、地下高强度的混凝土工程及抗冻、抗渗、耐磨性要求的混凝土工程。

The properties such as high hardness,low friction coefficient,excellent wearability and photics properties,can provide the profound foundation for the application of carbon nitride materials in many fields.

许多研究小组已经合成出具有独特性能的氮化碳，其高硬度、低摩擦系数、良好的耐磨性、较好的光学性质等对氮化碳在广阔领域里的应用提供了坚实的基础。

The special tribo-electdc tester with high sliding speed and electric current was developed,which mail working parameters are, current density up to 2.5 A/mm~2, the sliding speed 100 m/s,the load over 500 N (3.2 MPa) and the pulsant strike pressure within 20 N. This testersuccessfully simulates the tribological and electric properties of strip materials. 2, By using the above tester, study on tdbological properties and carrying currentperformances of copper-base powder metallurgy material and metal impregnation carbonmaterial are carded out.

本论文开展的主要研究内容和所取得的成果如下： 1、首次开发了大电流、高速度和重载荷的载流摩擦磨损专用试验机，能够稳定提供恒定交流电流密度2.5 A／mm~2，相对滑动速度100 m／s(12000 r／min)，载荷可达500 N(3.2MPa)，脉动冲击载荷可达20 N，为研究提速接触网和滑板的高速载流摩擦学特性及其机理，以及开发新型高耐磨性、高载流性能滑板材料提供了先进可靠的试验手段(该机已获得一项实用新型专利，ZL 2006 2 0096036.5)。

Wear resistance less than YG3X only,sensitive to impact and vibration.Used for continuous semifinish turning of cast iron,nonferrous metals and their alloys and for finish turning.

耐磨性仅次于YG3X，对冲击和振动较敏感，适用于铸铁、有色金属及其它合金连续切削时的精车、半精车、精车螺纹与扩孔。

The results showed that under the given experimental conditions,the surface layer with richiron and poor copper was formed in the surface worn region of the semimetallic friction material,the depth of organic ingredient pyrolysis caused by friction heat in worn surfaces was atout 0.35mm; the semimetallic friction material containing 15%-20%of Cu had better wear-resistance,and can form a even and continuous transfer film of copper; crack peeling was the importantmechanism of the counterpart.

半金属摩擦材料具有摩擦系数稳定，耐磨性好，对环境污染小和对偶件表面损伤小等优点，但其在摩擦热和界面应力等因素作用下，表层会发生弹性变形，塑性变形，元素扩散，组分转移和摩擦化学反应等现象，因此，利用扫描电子显微镜X射线能量色散谱和差热－热重分析，对铜纤维增强的半金属摩擦材料与灰铸铁滑动摩擦表面层的特性作了分析研究，考察了表面层特性对摩擦损行为的影响。

The experiment results indicate that a hardened layer is obtained on the surface of the materials after two kinds of surface hardening. Microstructure of the hardened layer is fine spiculate martensite which can help to improve the wear and friction properties of the materials.

研究结果表明：经2种表面淬火后，材料的表面得到一均匀的硬化层，其组织为细针状的马氏体组织，材料表面的耐磨性和摩擦系数得到了显著的改善。

Low temperature ion sulphurization,sulfide layer,friction reducing effect,wear resistance

中文关键词：低温离子渗硫；渗硫层；减摩作用；耐磨性

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。