磨损的

During the fabrication process, a low frequency alternative electromagnetic field was employed to improve the properties of composites by EMS.

干滑动摩擦磨损试验表明：复合材料的耐摩擦性比纯基体合金明显提高，施加电磁搅拌后复合材料的耐摩擦性进一步提高，特别是在较大载荷下的耐摩擦性大幅提高，从轻微磨损到急剧磨损的临界转变载荷由58.8N提高到78.8N。

This paper also analyzes the ash wear mechanism,and then does the effects of low temperature economizer wear five factors: the first is the smoke corridor caused by wear mechanism,the second is the impact on the wall material,and the third is that of flying ash concentratio.

分析了飞灰磨损的机理，然后分析了影响低温省煤器磨损的5种因素，一是烟气走廊引起磨损的机理；二是管壁材料的影响；三是飞灰浓度的影响；四是过量空气系数的影响；五是烟气成分的变化对磨损的影响。

Three kinds of cutting material were selected to machine stainless steel machining experiment such as ceramic cutting tools, cermets cutting tools and coated carbide cutting tools, in which the best range of each kind of tool material was founded. For example, LT55 was suitable to be machine lCrl8Ni9Ti as the cutting speed surpasses 120m/min and have a good wearable property.(3) Surface roughness was measured under different cutting conditions. Feed rate played the most important role in impacting surface roughness, and then cutting speed.(4) Chip patterns in different cutting speed with various cutting materials were analyzed. With the increase of turning speed, chip became shorter and was easy to be broken. For instance, serration chip appeared in high sped turning stainless steel with LT55;(5) Work hardening of austenitic stainless steel was analyzed.

陶瓷刀具LT55适合在Vc=120m/min以上切削加工不锈钢，耐磨性好；③通过试验研究了不同刀具材料高速车削加工1Cr18Ni9Ti不锈钢时的表面粗糙度，其中进给量对表面粗糙度的影响最为显著，其次为切削速度；④分析了不同刀具材料在不同切削速度下加工1Cr18Ni9Ti不锈钢的切屑形态，随着车削速度的提高，切屑变短且易断屑，其中LT55陶瓷刀具切削加工时产生了锯齿状切屑；⑤分析了奥氏体不锈钢的加工硬化机理及其对刀具磨损的影响；⑥根据试验结果分析在不同切削条件下切削不锈钢的刀具磨损形式及其磨损机理。

From the study of the wear behavior, the main wear mechanism of chilled cast iron tappet under boundary lubricating condition is suggested as a fatigue process.

作者针对冷激铸铁挺杆的磨损特性，提出了在边界润滑状态下挺杆磨损的主要机制是疲劳磨损。

Directing against serious wear-out problems occurred on large-capacity circulating fluidized bed boilers, the wearing mode and causes leading to wear-out have been analysed, and some anti-wear measures being put forward from view point of retrofitting the equipments.

针对大容量循环流化床锅炉磨损严重的问题，分析了磨损的形式和产生磨损的原因，并从设备改造角度提出了一些防磨措施。

The fretting wear experiments were made on nitrogen imp-larted samples and unimplanted samples of 9Crl8Mo steel respectively in this in vestigation. SEM was used to observe the topography of the fretted surfaces. AES and micro-region X-ray diffraction were also used to deter mine the elements distribution and phase construction of the implanted surface tilm and wear track surface.

作者对9Cr18Mo钢的氮离子注入试样及未注入试样进行了微动磨损的对比试验，利用扫描电子显微镜对磨损表面的形貌进行了观察，利用俄歇电子能谱仪和微区X-射线衍射仪对氮离子注入试样表面与磨损表面的元素分布及相组成进行了分析。

Wear resistance and wear mechanism of carburized layer of meta-bainitic steel in pin-on-disk abrasive wear and impact abrasive wear were investigated.

研究了准贝氏体钢销盘磨料磨损和冲击磨料磨损的耐磨性和磨损机制，确定了回火温度对耐磨性的影响，探讨了残余奥氏体的机械稳定性及其对耐磨性的作用。

In the paper,the working principles of the cutting tools are analyzed,the wearing of the cutting tools during the shield boring is investigated,analysis and study are made on the features of and causes for the wearing of the disc cutters and scrapers,the reasons for the wearing are summarized and some recommendations are made.

在对刀具切削原理的分析和盾构掘进中的刀具磨损情况进行了现场调查的基础上，对滚刀和刮刀的磨损特点及原因进行了分析和研究，指出了磨损的主要原因，最后提出了合理的建议和意见。

In the paper,the working principles of the cutting tools are analyzed,the wearing of the cutting tools during the shield boring is investigated,analysis and study are made on the features of and causes for the wearing of the disc cutter s and scrapers,the reasons for the wearing are summarized and some recommendations are made.

在对刀具切削原理的分析和盾构掘进中的刀具磨损情况进行了现场调查的基础上，对滚刀和刮刀的磨损特点及原因进行了分析和研究，指出了磨损的主要原因，最后提出了合理的建议和意见。

Theoretically the pump blade failure mechanism was worn on, the impact of wear failure leaves the various factors was analyzed, combined with practice pumping station operation and maintenance experience, the focus at a reasonable selection, surface heat treatment, non-metallic protective coating alloy powder spray repair welding and welding six aspects, premature wear of the pump blade technical measures and repair methods was prevented in order to enhance its effective life.

理论上阐述了水泵叶片磨损失效的机制，具体分析了影响叶片磨损失效的各种因素，并结合泵站运行实践和维修经验，重点在合理选材、表面热处理、非金属涂层防护、合金粉末喷焊和补焊等6个方面，提出了防止水泵叶片过早磨损的技术措施和修补方法，以提高其有效的使用寿命。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。