粗糙表面

The conception of the precision of the main parts for dry battery application and the working chart of the tolerance of the dimension and shape and the coarse degree of the surface were put for ward.

本文提出了干电池主要零配件的精度概念以及尺寸公差、形位公差、表面粗糙度等精度要求的工作图表达形式。

CAD/The CAM technology development, enables in the numerical control processing to become directly using the CAD design data possibly, specially the microcomputer and the numerical control engine bed joint, causes the design, the craft plan and the programming entire process completes completely on the computer, does not need to output the special technological document generally.

加工表面粗糙度要求低时，vF 可选择得大些。在加工过程中，vF 也可通过机床控制面板上的修调开关进行人工调整，但是最大进给速 www.3722.cn (整理。版权归原作者所有)如果您不是在 3722.cn 网站下载此资料的，不要随意相信。请访问3722，加入 3722.cn 必要时可将此文件解密度要受到设备刚度和进给系统性能等的限制。

Thermal barrier coatings consist of an electron-beam physical-vapor deposited NiCoCrAlY bond coat and 7 wt.% yttria partially stabilized zirconia top coat with a tetragonal phase. The YPSZ top coat shows a columnar grains forming dense clusters with gaps among grain clusters. The roughness of the as-deposited ceramic top coat is relatively low, but some spots of prominent growth defects can be observed. Such defect is a bundle of zirconia columns.

采用EB-PVD方法沉积热障涂层，其粘结层为NiCoCrAlY，陶瓷层为7wt%Y_2O_3部分稳定的ZrO_2，其表层为单一的四方ZrO_2相，其表层比较致密，但有一定的粗糙度，表面存在一些凸出来的斑点状ZrO_2柱状晶，柱状晶粒簇拥成团，团簇间存在间隙。

For the use on hard and rough package surfaces, a bottom base wearing plate is available as option.

如需在坚硬，粗糙的包装物表面操作，可以另外订购保护底板。

Main camp product :The ball bearing guide screw (may completely according to chart processing, welcome to attempt inquired), the straight line optical axis is by the technology which accumulates in the axis outer diameter common difference, the straight dimension, circumference, in the surface roughness guarantees the very high accuracy.

主营产品：滚珠丝杠（可完全按图加工，欢迎来图询问）、直线光轴是以积累的技术在轴的外径公差，直线度，圆周度，表面粗糙度上保证很高的精密度。

When it gets wet and soaks up water by capillary action, the spaces between the fibers become filled with water.

当它们被一层水覆盖的时候，光线被折射到它们在显微镜下看来非常粗糙的表面的更深处。

Features contain information and rules describing conditions, such as how and where material removal should occur, cutting depths, whether to use climb cutting or not, whether to spot drill or center drill, and preferred machining strategies for roughing and finishing.

加工特征包含了加工条件信息和规则，例如在何处和如何移除材料；切削深度；是否采用同向铣削；采用锪孔钻还是中心孔钻；以及优选的粗糙度和表面处理加工策略。

On the basis of researching sealing pipeline joint structures with double-cone pipe union in depth, this paper used the method of Robust Design, synthesized the mainly factors such as geometrical sizes of components, mechanical property of material, surface roughness of components, axial preloading force, fit clearance, taper and the difference of taper etc., and obtained a set of design rational parameters.

本文在深入研究双锥形管接头密封管路联接结构的基础上，运用稳健设计方法，综合元件几何尺寸、材料力学性能、元件表面粗糙度、轴向预紧力、配合间隙、锥角和锥角差等因素，找出了该结构比较合理的设计参数组合。

This paper introduces structure,working principle,force analyzing and advantage of the clamp using in cutting bearing hole of coal car whee3. A system of the ultrasonic elliptical vibration cutting with the single longitudinal animation was developed.

利用这种结构研制了一套单激励超声椭圆振动车削系统，采用PCD刀具对LY12实心件和薄壁筒工件进行了精密切削实验，实验结果表明椭圆振动切削可以大幅度降低切削力，明显改善薄壁工件的形状精度，同时工件还具有较好的表面粗糙度。

It was found that the composite structure of Ti-Si-N films, nanocrystalline TiN embedded in amorphous Si_3N_4 matrix, was confirmed in this work. The increasing deposition pressure resulted in the appearance of columnar structure, decrease in the film density, increase in the surface roughness, and deterioration of the adhesion strength and tribological properties.

结果表明，Ti-Si-N薄膜为纳米相的TiN镶嵌于非晶态的Si_3N_4基体中的结构，溅射气压的增大导致薄膜中柱状晶的出现，薄膜致密度下降，表面粗糙度增加，结合力和摩擦学性能恶化。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。