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钛管表面轧制摩擦痕处理研究 被引量:1
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作者 杨亚社 林继频 +3 位作者 王伟 尉北铃 张晓东 朱康平 《钛工业进展》 CAS 2008年第6期42-44,共3页
XпT60轧机在轧制钛管时,管材表面出现摩擦痕,分析了轧机及轧辊的工作过程和出现摩擦痕的原因,提出了解决方案,经过实践验证切实可行。
关键词 钛管 摩擦痕 轧辊
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YB95A型条外透明纸包装机垂直成型通道的改进 被引量:3
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作者 周福儒 施友志 +1 位作者 贺韧 张宁 《食品与机械》 北大核心 2019年第7期121-123,共3页
为解决卷烟条外透明纸摩擦痕的产品缺陷,对YB95A型包装机成型通道进行了改进。通过在通道表面焊接麦粒板和对第一顶升成型结构的滚动折叠设计等措施,大大减小了条外透明纸在包裹成型、输送过程中所承受的摩擦力。新材料和新结构的应用表... 为解决卷烟条外透明纸摩擦痕的产品缺陷,对YB95A型包装机成型通道进行了改进。通过在通道表面焊接麦粒板和对第一顶升成型结构的滚动折叠设计等措施,大大减小了条外透明纸在包裹成型、输送过程中所承受的摩擦力。新材料和新结构的应用表明,条外透明纸摩擦痕缺陷率由改进前的49.21%降低到改进后的3.49%,条外透明纸摩擦痕的质量缺陷得到了有效地解决。 展开更多
关键词 透明纸 包装机 摩擦痕 麦粒板 成型通道 滚动设计
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Zara漏光和Rubbing Mura改善研究 被引量:17
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作者 石天雷 杨国波 +1 位作者 程石 杭苗 《液晶与显示》 CAS CSCD 北大核心 2012年第2期208-211,共4页
研究了摩擦强度对Zara漏光和摩擦痕Mura的影响。实验表明,当摩擦强度偏低时,Zara漏光易发生,而摩擦强度偏高时,则易引发摩擦痕Mura。通过选择合适的摩擦强度,可降低Zara漏光和摩擦痕Mura的发生率。另外,利用FIB对基板表面进行分析,找到... 研究了摩擦强度对Zara漏光和摩擦痕Mura的影响。实验表明,当摩擦强度偏低时,Zara漏光易发生,而摩擦强度偏高时,则易引发摩擦痕Mura。通过选择合适的摩擦强度,可降低Zara漏光和摩擦痕Mura的发生率。另外,利用FIB对基板表面进行分析,找到了FFS型产品容易发生Zara漏光和摩擦痕Mura的原因。 展开更多
关键词 LCD Zara漏光 摩擦痕Mura
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史前刻槽盆功能考察 被引量:2
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作者 丁兰兰 《文博》 2007年第6期45-51,共7页
  刻槽盆是新石器时代遗址中较为常见的一种陶器,它的外形与同期的盆或钵等无异,不同的是,其内壁刻划有深浅不一,或纵横交错、或呈放射状的沟槽.该类器主要发现于黄河中游及长江中下游一带,迄今已有上百个遗址出土.……
关键词 刻槽 摩擦痕 擂钵 器物 仰韶时期 内壁 加工工具 刻槽器 研磨器 外体 灰坑 纹饰 擂茶 功能
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1例罕见的他缢死案
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作者 黄清芳 胡石林 《刑事技术》 北大核心 1997年第4期45-46,共2页
1 案情简介1994年6月4日,某电机厂职工金××(女,25岁)因不同意与其丈失邹××离婚,邹便对金施加暴力,金不堪忍受,拿出一截胶布粘合的带子准备上吊自杀,邹发现后予以制止.后起杀心,夺过金的带子,套其脖子上,将其背在背... 1 案情简介1994年6月4日,某电机厂职工金××(女,25岁)因不同意与其丈失邹××离婚,邹便对金施加暴力,金不堪忍受,拿出一截胶布粘合的带子准备上吊自杀,邹发现后予以制止.后起杀心,夺过金的带子,套其脖子上,将其背在背上缢死.2 尸体检验现场位于金××的卧室内.卧室门边有一木制梯子,梯上端第二横杠左侧有绳索摩擦痕.梯旁有一平板凳,经痕迹检验,其上上留有金的赤足印.死者倒于梯旁,下颌部有一断裂的胶布带,一端从半握拳状的左手中穿过,带长340cm,宽1cm. 展开更多
关键词 胶布带 缢死 痕迹检验 摩擦痕 死者 尸体检验 被害人 缢沟 中国医学百科全书 左腕部
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条石是祸首吗?条石不是祸首
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作者 高警督 《道路交通管理》 2001年第10期15-15,共1页
本案例讨论至此结束。下面请“高警督”作结。
关键词 托车 条石 摩擦痕 现场勘查笔录 能证明 两轮托车 交通事故责任 路面 前照灯 大酒店
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Dry wear behavior of rheo-casting Al-16Si-4Cu-0.5Mg alloy
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作者 胡钊华 吴国华 +7 位作者 徐佳 莫文飞 李艳磊 刘文才 张亮 丁文江 Jonathan QUAN Yuan-Wei CHANG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第11期2818-2829,共12页
Dry wear behavior of the rheo-casting Al-16Si-4Cu-0.5Mg alloy was investigated by micro-scratch and dry sliding weartests. Analyses of the microstructure, scratch grooves, wear tracks, worn surfaces and wear debris of... Dry wear behavior of the rheo-casting Al-16Si-4Cu-0.5Mg alloy was investigated by micro-scratch and dry sliding weartests. Analyses of the microstructure, scratch grooves, wear tracks, worn surfaces and wear debris of the alloy were carried out byoptical microscope and scanning electron microscope. The microstructural analysis showed that via rheo-processing, the primary Siwas refined and rounded, eutectics dispersed more homogenously, and even the skeleton AlFeMnSi phase was fragmented into facetshape. Micro-scratch test showed that the microstructural refinement resulted in better wear resistance. Dry sliding wear test revealedthat the rheo-processed sample exhibit obviously superior wear resistance because of the microstructure improvement. The dominantmechanism in mild wear condition is abrasion, but it turned to adhesion and oxidation in high applied load and fast sliding velocityconditions. 展开更多
关键词 rheo-casting aluminum alloy dry wear micro-scratch
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Nano-Mechanical Behavior and Nano-Tribological Properties of 316 Stainless Steel 被引量:4
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作者 LUO Yong GE Shi-rong 《Journal of China University of Mining and Technology》 EI 2006年第3期249-253,共5页
The microstructure and nano-tribological properties of 316 austenitic stainless steel have been investigated by using the in situ nano-mechanical testing system Tribolndenter, in which six different normal forces were... The microstructure and nano-tribological properties of 316 austenitic stainless steel have been investigated by using the in situ nano-mechanical testing system Tribolndenter, in which six different normal forces were chosen to make a scratch and indentation. The results show that the contact depth of the indentation increases with the normal force and material is piled up on the edge of the indentation as plastic distortion. The stable nano-hardness and the reduced modulus of 316 austenitic stainless steel are approximately 6 GPa and 160 GPa, respectively. The friction coefficients of 316 stainless steel with conic-type diamond tip have a typical value of about 0.13, 0.15, 0.17, 0.19, 0.22 and 0.25 when the normal forces are kept at 500 μN, 1000 μN, 1500 μN, 2000 μN, 2500 μN and 3000 μN, revealing an increasing trend with the normal forces. The increase of the friction coefficient in the unloading segment may result from the adhesion force caused by the material piled up. 展开更多
关键词 NANO-SCRATCH nano-indentation 316 stainless steel biomaterial FRICTION WEAR
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Tribology Performance and Adhesive Strength Evaluation of TiAlSiN Coating 被引量:1
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作者 姜峰 谢鸿 +1 位作者 融亦鸣 言兰 《Transactions of Tianjin University》 EI CAS 2011年第4期248-253,共6页
Scratch test and friction test were performed to evaluate the internal and external interface behaviors of TiAISiN coating, respectively. The critical compressive and shearing stress of coating failure during scratch ... Scratch test and friction test were performed to evaluate the internal and external interface behaviors of TiAISiN coating, respectively. The critical compressive and shearing stress of coating failure during scratch test were calculated and the values are 30.84 MPa and 4.98 MPa respectively. The average friction coefficients of TiAISiN coat- ing against 2Crl2Ni4Mo3VNbN steel are 0.70 (sliding speed 50 m/rain), 0.63 (sliding speed 100 m/min), and 0.81 (sliding speed 150 m/min). The elements diffusion was analyzed by EDS. A1 and Si element of coating material dif- fuse to the steel disc, except Ti element. The oxidation decreases with the increase of sliding speed, but the adhesion increases with the increase of sliding speed. More A1 element diffuses to the steel disc at the high sliding speed, but the diffusion of Si element keeps almost constant at dlfferent sliding speeds. 展开更多
关键词 TiAISiN coating internal and external interface scratch test ball-on-disc friction test
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