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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。

Traditional Ni coating and brush electroplated composite coating of nano-diamond/Ni are prepared respectively on 45(superscript #) steel matrix. A comparative study of the structure and performance of the two brush electroplated composite coatings is carried out by metallographic microscope, scanning electron microscope, energy dispersive spectrometry and X-ray diffraction.

以45钢为基体，制备了普通镍镀层和nano-diamond/Ni复合刷镀层，采用扫描电镜、能谱仪、X射线衍射仪和金相显微镜等设备对比研究了两种镀层的组织形貌。

Metallographic microscope and SEM results show that the surface and structure of nano-diamond/Ni brush electroplated composite coating are more smooth and compact than that of Ni coating. And on the surface of brush electroplated composite coatings, which appear to be the typical cluster crystals in a cauliflower shape, nano-diamonds are wrapped by nickel crystal grains.

金相显微镜和扫描电镜分析结果表明，与普通镍镀层相比，nano-diamond/Ni复合刷镀层的表面更加平整、致密，组织更加细化：nano-diamond/Ni复合刷镀层表面呈典型的&菜花头&形状，弥散分布的纳米金刚石被镍包裹。

The effect of nano-diamond powder on the forming speed, microhardness and wear-resistance of compound brush plating Ni-P coating, the wear-resistance of brush plating Ni-P coating, Ni-P nano-diamond composite coating and Ni-P micro-diamond composite coating was tested. The mechanism of improving wear-resistance by of composite coating was analyzed.

中文摘要：研究了纳米金刚石粉对复合电刷镀镀层形成速率、显微硬度和耐磨性的影响；测试了在不同的热处理温度、载荷及金刚石粉含量下复合刷镀层的耐磨性能；分析了复合镀层的磨损机理。

Click and drag the brush to move the brush in any of the 2D views.

在任意二维视图中点击并拖拽笔刷。

Existing fixed assets of 28,000,000 yuan, more than 280 employees, of which specializes in chemical fiber production has thirty years of excellent quality all kinds of technical personnel, engineers, senior engineers and management personnel for nearly 20 people, is the largest types of system using fiber wire brush professional manufacturer, now has the domestic leading brush system with a dedicated fiber spinning production lines and advanced production technology silk mill tip.

现有固定资产2800万元，在职员工280多人，其中有专业从事化纤生产三十多年的素质优秀的各类技术人员、工程师、高级工程师和管理人员近20人，是国内规模最大的各类制刷用化纤丝专业生产厂商，现拥有国内领先的制刷用化纤专用纺丝生产线和先进的磨尖丝生产技术。

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。

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.

结果表明，在试验条件下，在合金接触线-黄铜粉末冶金滑块系统的电磨损过程中，Cu-Cr-Zr合金接触线的电磨损率随电流强度升高显著加强，由加载较小电流引起的磨损份额为0。

The output -6KV high voltage is applied to the front end of the carbon fiber brush and negative ions are generated when air goes through the brush.

利用单片机软件产生20KHz间歇性脉冲信号，通过功放、升压、整流变换，输出-6KV左右的高压，加到碳纤维电极上，由空气电离效应产生所需的负离子。

The intermittent pulse signal with frequency 20khz is generated by embedded software and then amplified by external power driving and voltage transforming circuit. the output -6kv high voltage is applied to the front end of the carbon fiber brush and negative ions are generated when air goes through the brush.

利用单片机软件产生20khz间歇性脉冲信号，通过功放、升压、整流变换，输出-6kv左右的高压，加到碳纤维电极上，由空气电离效应产生所需的负离子。

This paper designs the communication system of radio telescope FAST.

针对500m口径球面射电望远镜FAST分布式控制系统的特点完成了其通信系统的设计。

Political sheep's step-by-step a large number of fossils unearthed in the county soil Ma Ali after rural village in the middle of sallow pelitic siltstone.

步氏和政羊化石大量出土于广河县阿力麻土乡后山村，产于灰黄色泥质粉砂岩中。