削磨

The single grain grinding is one of the most important methods to study the ductile mode grinding.

单颗磨粒磨削是研究延性域磨削的一种重要方法。

A method is therefore proposed to change the grinding wheel edge from parallel into inclined form so as to optimize the structure of abrasive layer.

点磨削砂轮磨料层采用有粗磨区修整倾角的结构可获得良好的磨削性能，较传统砂轮磨料层结构可获得更理想的磨后表面。

The comprehensive treatment was not restricted by the accidented of the face in treating deep-II facial burn.Using this method,it was easily to control the depth of wound.This method can eliminate the necrotic tissue effectively and to the most extent, can reserve the health epidermal. So this method was much better than traditional method.

磨、刮、削痂综合治疗面部深Ⅱ度烧伤，不受面部凹凸处的限制，磨削痂的深浅度易掌握，既有效清除坏死组织，又最大程度的保留间生态上皮，比传统削痂术损伤轻，符合整形外科微创手术的技术要求，瘢痕增生明显减少，色素沉着少，提高了创面愈合质量。

The microstructure of hardened layer and formation mechanism were investigated.The microstructure of hardened layer consist of the completely hardened region and the transition region.The completely hardening region is composed of fine acicular martensites,residual austenites and a few dot-like carbonides.From surface to bottom in the hardened layer,the microstructure varies from fine to coar...

结果表明：采用适当的磨削参数可满足该钢所要求的淬火温度，进而获得适宜的淬硬层显微硬度和强化层深度；磨削淬火层由完全硬化区和过渡区组成；完全硬化区主要由细小针状马氏体组成，从表面到里层，组织形貌呈现&细→粗→细&的变化规律，其形成机理是热-力耦合作用影响磨削淬火过程中的奥氏体晶粒大小及其位错密度，并将直接影响转变后的马氏体组织形貌。

In the second part, the effects of grinding depth of cut, workpiece speed of feed, wear of wheel and grinding fluid on workpiece burn are reveal. And also, microhardness of ground surface layer as well as burn colour of surface are investigated experimentally.

第二部分通过大量的实验，探讨了磨削深度，工件进给速度，砂轮磨损和磨削液对磨削烧伤的作用机理，依据实验，本文提出了一些新的观点。

Eenterless grinding involves passing a cylindrical workpiece, which is supported by a rest blade, between two wheels, i.e., the grinding wheel and the regulating or feed wheel.

无心磨削：无心磨削：无心磨削用于加工圆柱形工件，工件由托板支撑，在两轮即砂轮和调节或进给轮之间通过去。

The universal index head is provided at 24 positions so that any particular angle of shape can be obtained, free 3600 or 100 rotation is allowed for grinding End Mills、Twist Drill、Lathe Tools, only replace the attachment to the index head without any complex setup.

磨削分度头可在24种位置下操作以便于磨削任何角度和形状，只需替换分度头上的附件而不需任何复杂的步骤就可进行立铣刀、雕刻刀、钻头、车刀、球头立铣刀的磨削。

Some techniques which are used for the measurement of grinding temperatures,such as infrared radiation pyrometers,optical fiber infrared radiation pyrometer, two-color infrared system and infrared imaging system,are summarized,compared and discussed.

磨削过程中，大量无规则离散分布在砂轮表面的磨粒对工件划擦、耕犁和切削综合作用，其所产生的热体现为工件的温升、砂轮与工件接触面的温升、工件已磨削表层的温升、磨粒切削刃温度和切屑温度。

A new gear grinding way without axial feeding based on the principle of the worm gearing,and how to make up the machine,motions needed in the machine and relationship of the motions are dissertated.

论述了基于这种原理的蜗杆砂轮磨削圆柱齿轮实现无轴向进给磨削的方法及其机床构成和所需要的运动及其相对关系，分析了完成磨削所需要的各种运动及其实现方法。

Over the analysis to grinding methods of mould core in reflecting cover of lamps with paraboloid, the thinking on developing professional grinding tool is provided, and the grinding track of paraboloid with scale distribution on surface is calculated.

通过对抛物面反射罩模具型芯磨削方法的分析，提出了研制专用磨削机床的设想，并对表面有鱼鳞块分布的抛物面磨削轨迹进行了计算。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐