耐磨

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。

Automatic inflow system,The synchronous coaxial guide cam shaft chain, beltoutput system is stable, wearprooff, durable, easy to maintain and adjust without components dancing.

自动进料系统，同步同轴导片凸轴链式，皮带式输送系统，平稳，耐磨，组件不跳动，使用寿命长，保养容易，调整方面。

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。

When used in p1astic industry, barite powder can be used as filler in plastics like ABS and make the products bright in color and luster.

用于塑料工业，可用于塑料 ABS 原料的填料，使产品光泽亮丽，同时可以提高产品强度，刚度和耐磨性。

Precisely cast ductile iron gear has advantages of low noise, high abrasion resistance index and long service life.

精密铸造球铁齿轮，噪音低，耐磨度高，使用寿命长。

Very often the combination of cast iron gear and a steel pinion will give a well balanced design with regard to cost, strength, and wear.

通常，铸铁大齿轮和钢制小齿轮的组合能够在成本、强度和耐磨性之间达到较好的平衡。

Chain is a high-quality high-strength alloy steel chain plate, wear resistant and reliable.

链条是优质合金钢高强度板式链条，耐磨而可靠。

The effects of normalizing temperature and retaining time on microstructure and properties of low chromium wear resistant cast steel were studied.

采用金相、扫描电镜和力学性能分析方法研究了正火温度和保温时间对低铬耐磨铸铁组织与力学性能的影响。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷