耐磨性

XRD picture of the sample shows that the change of the abrasiveness of the composite is due to that of the p...

样品的XRD图显示材料的耐磨性变化是由于材料中的相组成发生了变化，耐磨材料中有新的结晶相产生。

ABSTRACT A new category of steels having excellent combinations of strength, toughness and strain-hardening ability and excellent resistances to high-stress, especially to severe impact-loaded abrasion was developped with a new idea of abrasion-resistant materials designing.

本文以新的耐磨材料合金设计思想，研制了一类同时具有很高强韧性和良好加工硬化能力、在高应力尤其是高冲击负荷磨损条件下耐磨性十分优异的新型耐。。。

These tests include colour fastness to rubbing/crocking, light, perspiration, water, chlorinated water and seawater; strength tests, namely of tensile strength, tearing strength, seam strength, slippage characteristics, bursting strength etc.; pilling resistance; oil repellence; soil release; air permeability; water vapour permeability; abrasion resistance; water repellence; zipper strength, durability and operability; velcro shearing and peeling; snap fastener security; and the corrosion of metallic finishes, etc.

这些测试包括磨擦、日晒、汗液、水、氯水和海水的色牢度；强度，即拉伸强度、撕裂强度、接缝强度、滑移特性、破裂强度等；抗起球特性；防油性；防污性；透气性；水气通透性；耐磨性；防水性；拉链的强度、耐用性和运作顺畅性；尼龙搭扣剪切力和剥离力；按扣强度；金属饰物的耐腐蚀性等。

Polyurethane elastomer has good elasticity, wearable property, good oil resistance, the ozone(O_3) resistance, microtherm resistance, well viscidity, good mechanical property and electrical resistance and so on. So it has been widely applied in the every area of civil affairs.

聚氨酯弹性体具有许多优良特性，如高弹性，耐磨性，耐油性，耐臭氧性，耐低温性，高粘接性，有良好的机械强度以及好的电绝缘性等，因而被广泛应用于国民经济的各个领域，成为不可缺少的重要材料之一。

As the bamboo has natural beauty efficacy, quick-drying with high moisture absorption, high permeability; drape, elasticity, abrasion resistance, dyeability trilingual; luster bright, cool touch, such as silk soft; anti-ultraviolet; mothproof mold, has a good natural anti-bacterial inhibitory effect, conform to the pursuit of health and comfort of the modern trend.

由于竹子有天然的美容功效，具有高吸湿性快干性、高透气性；悬垂性、回弹性、耐磨性、染色性俱佳；光泽亮丽，手感清凉爽滑、如丝柔软；抗紫外线；防霉防蛀，具有良好的天然抗菌抑菌效果，顺应了现代人追求健康舒适的潮流。

This welding wire not only has the inherent properties of metal powder-cored wire, such as with better welding quality, without slag, highly efficiency and conveniently adjusting the alloying elements etc., but also has the advantage of low hardness in as-welded (less than HRC45), good machinability, high hardness in as-aged (more than HRC55) and better wear resistance with customary working procedure on making or repairing equipments such as rollers when reasonable designing the alloys content. The author adequately makes use of the high-tempering in the required stress relieving working procedure. During this working procedure, which causes the hardness of overlaying metal increased by the reason of austenite changes into tempered martensite and more chiefly what is the precipitation of a lot of carbide by secondary hardening simultaneously. This wire can solve the hard rolled problems of some solid wires with higher alloys while it can get over the conflict of existing overlaying materials what are always possesed high hardness with poor machinability or low hardness, good machinability with poor wear resistance. Further, it also can overcome the intenerating phenomena between welding beads and make the external hardness of overlaying metal uniform. Be sure it could be found important meaning in the overlaying of wear-resistant equipments, such as the precise roller.

该焊丝除了具有金属粉型药芯焊丝焊接质量好、无渣、高效率和合金成分可方便调节等固有的优点外，合理的设计粉芯中的合金成分，按通常工序制造与修复轧辊等设备，充分利用必需的消除应力工序的高温回火，堆焊层金属在奥氏体转变为回火马氏体的同时更主要是通过二次硬化析出了大量碳化物导致硬度增加，使得该焊丝还具有焊态硬度低(小于HRC45)、机加工性能好和时效态硬度高(大于HRC55)、耐磨性能好等优点，解决了某些高合金实芯焊丝轧制困难的问题，同时克服了现行堆焊材料硬度高、加工性能差或者硬度低、加工性能好、耐磨性差的矛盾，并能克服焊道之间的软化现象，使堆焊表面硬度较为均匀，对耐磨件，譬如精轧辊的堆焊具有重要意义。

The overlapped zone underneath the molted zone exhibited better wear resistance,only half wear rate as compared with the untreated material under given experimental conditions.

熔化区下方的应力与热影响重叠区呈现了很好的耐磨性，在一定的载荷条件下耐磨性提高一倍。

The contributing law of initial surface hardness, micro hardness and its hardness gradient, metallography of bush and pin on chain wear resistance were demonstrated according to the micro analysis and the design rules under different wear mechanism were put forward.

由此可见，研究三轮农用车正时链和传动链的磨损机制，分析影响其耐磨性的因素，寻求提高其耐磨性的原理与技术，具有十分重要的学术价值和实用意义。1 磨损试验为了增强试验结果的可比性，实现不同质量水平的链条在完全相同

In the meantime, fine bainite is favourable to the wear resistance of ADI while coarse bainite is disadvantageous.

同时强调细小分布的贝氏体对ADI耐磨性有利，而粗大的贝氏体条件对ADI 耐磨性不利。

High carbon and high molybdenum high speed steel has ...

高碳高钼高速钢具有硬度高、红硬性和耐磨性好等特点，但铸造高速钢脆性大，采用RE -Mg -Ti复合变质处理，可以改变共晶碳化物的形态和分布，使铸造高速钢冲击韧性提高 86 。2 %，热疲劳抗力和耐磨性也明显改善。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。