耐磨性

The splinted shaft is made of alloy and the surface is specially treated, its abrasion performance and fatigue strength is enhanced.

花键轴采用合金材料进行特殊表面处理，提高了耐磨性及疲劳强度。

ZA alloy is based on Zn and composed of Al, Cu, Mg added as alloying elements. It is a kindof environmental friendly material that possesses characteristics of high strength, better plasticity,excellent wear resisting property, low friction coefficient and high specific strength, low meltingpoint and no magnetic. ZA alloy has been widely applicated in the fabrication of mechanical partsand models, such as bearing, axle sleeve, pressing plate and turbine. However, the joiningproblem of ZA alloy that hasnt been solved has limited its application in some fields.

ZA合金是以Zn为基，添加了Al、Cu、Mg等合金元素，具有强度高、塑性好、耐磨性优良、摩擦系数低及较高的比强度、低的熔点、无磁性等特点的环保材料，广泛应用于制造轴承、轴瓦、压板、涡轮等机械零件及模具等，但由于连接问题没有解决限制了ZA合金在一些领域的应用，也因此成为ZA合金急亟待解决的问题之一。

For the sake of solving the problem of great rotary inertia and forged steel rockerarms bad wear-resisting property in the engine of Xia Li cars with modelTJ370Q TJ376Q, we utilize the assembly theory of creative engineeringmethodology to respectively make the aluminum alloy materials and siliconnitride engineering ceramics as base stock of rocker arm and cabochon glut. Inthis way, the goodness of these two kinds of materials are fully strengthened. Forthe new rocker arms, their comprehensive property are enhanced and the cost ofmanufacture is lower than before.

为了解决夏利轿车发动机TJ370Q和TJ376Q中所装配的锻钢镀硬铬气门摇臂所存在的转动惯量大、圆弧面耐磨性差的问题，项目研制中运用创造性方法学中的&组合&原理，有针对性地选用铝合金和氮化硅陶瓷这两种具有不同性能特点的材料分别作为摇臂基体和工作圆弧面镶块，充分发挥两种材料各自不同的性能优势，从而达到提高产品综合性能，降低制造成本的目的。

Thus the lathe bed guide rail carried on special surface layer quenching processing to enhance the guide rail resisitance to wear.

床身导轨进行了特殊的表层淬火处理，从而提高了导轨的耐磨性。

Guiding cover and guiding board adopt separate structure, guiding cover adopts ceramic material with characteristics of good wear resistance and long service life .

导向套与导向板采用分体结构，导向套可单独更换，且导向套采用陶瓷材料，耐磨性好，使用寿命长，大大降低了使用成本。

Thanks to our technology, highly tested in a great variety of applications, the extrusion line supplies a finished product which, through fully computerized process control, reaches levels of complete uniformity and quality as regards to width, thickness, weight, camber, breaking loads, elongations under load, weld ability and resistance to abrasion.

经过我们技术、高度考验繁多申请挤出了成品供应线，通过全面电脑过程控制、游完全一致的水平和质量至于宽度，厚度，重量，拱破负荷下伸长负荷焊接能力和耐磨性。

Electrodeposition during brush plating could be changed at a broad area with the inverter by controlling wave, frequency pass arid close and average value of electric current. Electrocleposition process of metal ion was changed and brush plating coating with tine grain, high hardness and good wear resistance was obtained.

逆变焊镀充电多功能电源通过控制电流的波形、频率、通断和平均值，使刷镀过程的电沉积在很宽的范围内变化，改变了金属离子的电沉积过程，获得了晶粒细密、硬度高、耐磨性好的刷镀层。

In order to improve the conductivity and abrasive resistance of copper-graphite composite brush ,influence of carbon fiber content on the electrical wear behaviors of the copper-graphite brush were investigated under two conditions of electrifying and non-electrifying.

为进一步改善铜-石墨复合材料电刷的导电和耐磨性，提高其使用寿命，研究了在不通电和通电2种条件下，碳纤维含量对铜-石墨电刷磨损量的影响。

Based on the relevant movement between hard shaper cutter and grinding wheel, the movements of grinding wheel are studied. The shaping grinding point and the shaping grinding edge are made up with. In order to easily compare when shaping errors and cutting edge"s angles are the most excellent, uniform expressions for convex curved rake face of hard shaping cutter and spatial cutting edge curve are separately developed. The distributions of new profiling cutter"s shaping errors and cutting edges angles are analyzed. The relevant grinding wheel and cam are designed. Due to this paper, a new profiling hard shaping cutter has been manufactured successfully. At last experiments are made to test the performance of hard shaping cutter and all kinds of precision of hard gear.

本文直接从插齿刀与砂轮之间的相对运动关系出发，单独研究砂轮的运动，提出砂轮成形磨削点和砂轮成形磨削刃的概念；分别建立圆柱砂轮和圆锥砂轮磨削后硬齿面插齿刀的波形前刀面方程及空间切削刃方程；为便于比较何种情况下插齿刀的构形误差和切削角度能同时达到最优，分别对磨削五种不同硬齿面插齿刀所用的砂轮进行了廓形设计，并分析了插齿刀的构形误差和侧切削刃切削角度的分布规律；为插齿刀波形前刀面的磨削加工设计了相应的凸轮，用所设计的凸轮和近似的砂轮成功地制造出新构形法硬齿面插齿刀；最后进行插齿加工试验，检验新构形法硬齿面插齿刀的抗崩刃能力、耐磨性及被加工硬齿面齿轮的各项精度。

Carbon black is a kind of rubber filler, it can increase the wear resistance of rubber. It is mainly produced from coal tar as raw materials under high temperature cracking.

炭黑是橡胶里的一种填充剂，可以增加橡胶的耐磨性等，它主要是以煤焦油为原料在高温下裂解而成的。

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％。