ws2

Study on Tribological Characteristics of Ultrafine WS2 Powders in Petrol Engine Oil

超细二硫化钨粉末在汽油机油中的摩擦学性能研究

Moreover , the precipitation and desulphurizing process and the ball-milling-desulphurizing method were tried to use to prepare the inorganic fullerene ( IF - ) WS2 nanoparticles , but in these processes , there had some difficulties .

另外，采用化学沉淀脱硫法和球磨脱硫法，试图制备无机类富勒烯（简称IF）二硫化钨，但尚无获得理想的结果。

WS2 production , application , market and development are presented .

在综述新型钨产品二硫化钨（WS2）的生产工艺、主要设备等基础上，分析了产品的应用及市场状况，并提出了相应的发展对策。

The antiwear ability was improved and the friction coefficient was decreased with the addition of WS2 nanorods in base oil .

结果表明：添加WS2纳米棒可以提高基础油的抗磨减摩性能。

Transition metal WS2 possesses laminate structure and the atoms between each layer bond relatively weakly , which makes it slides easily .

过渡族金属WS2具有层状结构，层与层之间原子结合较弱，易于滑移。

The tribological mechanisms were explained as follows : Firstly , the WS2 nanorods penetrated into the rubbing surface and rolled in rubbing surface ;

其摩擦机理为：首先，WS2纳米棒随着基础油进入到摩擦副之间，从而起到微轴承的作用；

WS2 nanorods were prepared successfully by the ball milling-self-transformation method . Moreover , the tribological properties of WS2 nanorods as oil additive were also investigated .

首先，采用球磨&自转化法成功的制备出了WS2纳米棒，并研究其作为润滑油添加剂的摩擦学性能。

A roll-pressed inorganic bonded WS2 film gives rise to an effective lubrication for miniature bearing under above testing conditions and has been successfully applied to a high temperature gas measuring flowmeter .

一种WS2加无机粘结剂的滚压膜在上述试验条件下可使微型球轴承得到有效的润滑，可在高温气体流量计上成功应用。

Adding proper WS2 submicron particle into the grease used in rolling bearing can reduce the friction factor , consumption , wastage of grease and prolong the working life of grease .

在滚动轴承用润滑脂中添加适量WS2亚微米粒子，能有效降低轴承在高温环境下工作时的摩擦因数，降低能耗，并能减少润滑脂消耗，延长润滑脂的工作寿命。

The results of DC reactive magnetron sputtering & sulfide show that sulfide temperature can significantly affect on the surface of WS2 film and crystallization rate , but little affect on the chemical composition .

反应磁控溅射硫化法检测结果表明硫化温度对WS2薄膜的表面形貌和结晶率有明显的影响，而对膜层的化学成分影响不大。

We analyze the situation of WS2 high temperature lubricating grease in the high temperature using the approach of heating analyze proving that WS2 powder is of good stability and lubricity under high temperature condition .

采用热分析方法对WS2高温锂基脂在高温下的状态进行了分析，得出WS2粉末在800℃高温下具有良好的稳定性和润滑性。

Otherwise , it may follow with a response to H1 , as well as a second outbound Web Service request ( WS2 ), which will be processed in the same fashion as WS1 .

否则，它可能会跟随一个响应到H1，以及第二个出站Web服务请求（WS2），后者的处理方式与WS1相同。

The results of experiment show that WS2 submicron particle can enhance the tribology property , including anti-wear , antifriction and extreme pressure , of two main high temperature grease-lithium complex grease and complex calcium sulfonate grease .

本文的主要研究结果有：1.通过实验发现WS2亚微米粒子能大大提高两种主要高温润滑脂：复合锂基润滑脂和复合磺酸钙基润滑脂的抗磨、减摩、抗极压等摩擦学性能。

As a late-model excellent solid lubrication films tungsten disulfide films performance is better than classical molybdenum disulfide films in some aspects . So the tribological behavior of WS2 films has been paid more and more attention .

WS2作为一种新型的优秀固体润滑材料在某些方面的表现要优于传统的MoS2薄膜，因此人们开始越来越多地关注WS2在摩擦学方面的应用。

We adopt a new one step method producing technology , add many kinds of addictive and produce a kind of WS2 high temperature lubricating grease with high dripping dot , good stability and excellent extreme pressure . There is no decreasing temperature process .

采用新型的一步法制备工艺，加上多种添加剂，制备出一种高滴点、具有良好稳定性和优秀极压性的WS2高温锂基润滑脂。

It is discovered that , under a lower temperature , the metal is lubricated mainly by WS2 adsorption membrane which is formed between metal friction surfaces besides crystal interior layer slipping of WS2 submicron particle in the grease .

发现在较低的温度下，润滑脂中所含的WS2亚微米粒子除了依靠晶体内部层间滑移减少摩擦外，主要依靠在金属摩擦表面形成WS2吸附膜，以起到润滑作用。

Comparing with foreign study , the domestic research of WS2 films was carried out later . The lubricating mechanics of WS2 films still needs discussing , some new phenomenon needs discovering and the WS2 films are not extensive used in practical application now .

同国外相比国内对于WS2的研究起步较晚，对于WS2薄膜的润滑机理仍有待研究，仍有许多新现象有待发现，在实际应用中更没有形成产品规模。

The tribological properties of WS2-Ag composite films varied with the Ag content . The amorphous WS2 in the WS2-Ag41 % composite film made the main function during wear , so the film showed the lowest friction coefficient and the smallest wear rate .

复合薄膜的摩擦学性能随Ag的含量而改变，WS2-Ag41%复合薄膜在摩擦过程中，WS2起主要作用，因而其具有最低的摩擦系数和最小的磨损率。

The nanocrystal WS2 is made by mechanical-physical solid reaction process , its S-W-S nanoclusters are hollow balls , and the smaller the diameter of nanocrystal is , the better the friction performance is , so it is suitable for the field of ultravacuum .

用机械-物理固相反应法制得了WS2纳米晶体，并证明其S-W-S纳米簇团为中空球，且WS2纳米晶粒径越小摩擦性能优越，更适用于超真空等领域。