耐磨

The using instance of mould is complex, its always abated by abrasion, fatigue, or bad hot stability, and so on. To extend the longevity of mould, people try to use general heat treatment and other surface treatment, especially the gas nitriding, because of its inherent excellence, such as wearable、incohesive、co-fatigue、stand against permanence intensity and causticity under changeable load and so on, also the gas nitriding facility is cheapness, so the gas nitriding technics is abroad used.

为了提高模具的使用寿命，人们除了采用常规热处理外，各种表面强化技术也被广泛应用，特别是气体氮化工艺，因其能显著提高工件的耐磨性、抗擦伤性能、抗粘和性能、接触疲劳性能、冲击或交变载荷下的持久强度和耐腐蚀性能等，而且气体氮化工艺设备投资、生产成本低，更是被广泛关注。

The interlaminar shear strength of long-CF/PSF composite is about 80% of tensile s...

CF/PSF复合材料比纯PSF具有更优异的耐磨性能和更高的热形变温度。

The result indicated that, gathers in advance the emulsion water resistance and mechanics performance which in the body preparation method the one-stage process obtains is good, but two steps obtain the emulsion stability is good; The neutralizaing agent triethylamine amount used should enable to achieve neutral between x-y, to gathers in advance the body disperser and the emulsion stability only then is advantageous; The water affinity chain extendor DMPA content to the emulsion viscosity, stable and the emulsion cellophane water resistance has the remarkable influence, its amount used general control between x-y; Hard section isocyanogen diethylene glycol dinitrate primary control paint film degree of hardness, module, anti-avulsion, wear-resisting and so on performance, the soft section low-molecular polymer polyols primary control paint film elasticity, hydrolisis performance and so on bears the low temperature and bears

结果表明，预聚体制备方法中一步法得到的乳液的耐水性和力学性能较好，而两步法得到的乳液的稳定性好；中和剂三乙胺的用量应使中和度达到x-y之间，对预聚体的分散和乳液的稳定性才有利；亲水扩链剂DMPA的含量对乳液的粘度、稳定性及乳液胶膜的耐水性有着显著的影响，其用量一般控制在x-y之间；硬段异氰酸酯主要控制涂膜的硬度、模量、抗撕裂、耐磨等性能，软段低聚物多元醇主要控制涂膜的弹性、耐低温和耐水解等性能

Guangzhou Jingbang Hydraulic Seal Technology Co., Ltd. is professionally engaged in research, production and sales of fluoroplastics, fluorine products, high polymer wear-resisting material and seals(diameter of 2 meters) of large-scale hydraulic oil cylinders.

广州市晶邦液压密封技术有限公司（下设广州市晶达塑胶科技有限公司，广州市晶程液压密封技术服务有限公司）专业从事液压油缸密封件，氟塑料，氟制品，高分子耐磨材料的研究，生产、销售。

Chain device USES caterpillar chain chain plate adopts double circular and single circular arc form two lap,inpact resistance,wear-resisting,no leadage.

链条装置采用履带链条，链板采用双圆弧和单圆弧两种搭接形式，抗冲击，耐磨顺，不漏料。

The seal element of scroll tooth which is made of lubricative material and wearable board in the bottom of scrolls.

在涡旋齿端面开设密封槽内加由自润滑材料制成的密封条，同时在涡旋盘底平面加耐磨片，它们不但可以阻止泄漏，而且降低了涡旋齿与涡盘底部摩擦功率损失，在此提出了它们的设计方法。

Its comprehensive coverage focuses on development of martensitic layers, ductility, and wear resistance because of direct quenching.

它的广泛报导集中在由于直接淬火马氏体层、延展性和耐磨性发展。

By means of the analyses of SEM and metallograph and physical tests,the microstructure and properties of the composites made from copper-coated-TiB2 have been studied.

1引言硼化物陶瓷具有极高的熔点、高化学稳定性、高硬度和优异的耐磨性，基于这些优点，成为复合材料强化物的首选材料之一。

The metallograph, x-ray diffraction, TEM, EMPA and XPS technigues were used to research the microstructure, phase structure, microhardness, composition, Valence of composed elements, internal stress of coatings, and to measure the wear-resistance and resistance to high-temperature oxidation, too.

文中应用金相分析、X-射线衍射法、透射电镜、电子探针显微分析法和X-射线光电子谱法等手段研究了N膜的显微组织、相结构、显微硬度、膜层成分、组成元素的价态和膜层内应力等性能；还测定了铝合金表面的N膜的耐磨性和抗高温氧化性能。

Results showed that wear-resistance of a metallurgically bonded coating produced by this process, compared with that of the matrix metal, increased approximately by 6 times and 4 times, and the service life is greatly prolonged.

结果表明，采用该工艺制备的涂层与基体呈冶金结合，耐磨性能相较于基体金属分别提高约6倍和4倍，大大延长了零部件的使用寿命。

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％。