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friction tests
相关语句
  摩擦试验
     A series of dry friction tests of metal/ceramic composite coatings and carbon steel coating against mild carbon steel were carried out under room temperature using an SRV Friction and Wear Tester. The tribological behaviors of plasma sprayed CoCrMoSi+Al2O3ZrO2, CoCrMoSi+FesO4 and Cr1Mn1C1 carbon steel coatings were compared by means of SEM and Scanning Electron Acoustic Microscopy (SEAM).
     在SRV摩擦磨损试验机上进行常温干摩擦试验,比较了CoCrMoSi+Al2O3ZrO2和CoCrMoSi+Fe3O4两种大气等离子喷涂金属-陶瓷复合涂层以及C1Mn1Cr1碳钢涂层与35#中碳钢对磨的摩擦学特性;
短句来源
     Friction Tests of Structural Prestressed Steel Strands of the Safety Shell of Tianwan Nuclear Power Station
     田湾核电站内安全壳结构预应力钢束摩擦试验
短句来源
     Engineers made some friction tests on the prestressed safety shell in order to verify whether the friction coefficient adopted in the bearing calculation of prestressed steel strands is equal to the friction coefficient existed in practical on-site construction,and then they could determine exactly the prestressed value and ensure construction quality of the prestress system.
     通过在预应力安全壳实体上进行摩擦试验 ,验证预应力钢束受力计算时所采用的摩擦系数与现场实际施工中所产生的摩擦系数是否一致 ,从而准确地确定预应力值 ,保证预应力体系的工程质量。
短句来源
     The test results of sputtered MoS 2 show that the solid lubrication performance is directly affected by the selected sputter parameters (power, density, pressure, sputter etch, direct current deflection voltage etc) and material temperature, surface chemical properties, profile and environment conditions at the friction tests.
     溅射MoS2膜试验结果表明 ,固体润滑特性直接受选择的溅射参数(功率、密度、压力、溅射蚀刻、直流偏压等 )和底材温度、表面化学性质、外形以及摩擦试验时环境条件的影响。
短句来源
     Heavy stress and friction tests showed that the characters of elasticity and scrape tolerance of Zoysia japonica was obviously better that of Poa pratensis.
     重压与摩擦试验表明,结缕草的弹性和耐磨性明显高于早熟禾。
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  “friction tests”译为未确定词的双语例句
     The friction tests were carried out using a block-on-disk type friction tester, with various sliding speeds from 20 to 60m/s, and normal pressures from 0.2 to 0.8MPa.
     用低碳钢盘为对摩体,试验在盘-块式摩擦试验机上进行; 滑动速度为20-60 m/s,法向压强为0.2-0.8MPa。
     Friction tests also showed that A-6G alloy rubbed against itself materialgave low friction coefficient and low wear rate, while being rubbed against 1Cr18Ni9Ti it exhibited highfriction coefficient but low wear rate
     与自身配副,也具有较好的摩擦磨损性能。 与1Cr18Ni9Ti配副,摩擦系数虽然较高,但对偶双方的磨损都很小。
短句来源
     Wear and friction tests were performed in a reciprocating sliding tribotester at room temperature at a nominal pressure of 5.8 MPa and counterface roughness of R_a 0.8 μm.
     实验条件为正压力5.8 MPa,往复频率1 Hz,对摩面粗糙度Ra0.8μm。
短句来源
     A two dimension small scale force sensor is developed which is used in the adhesion and friction tests,the sensor works well in the experiments.
     本文首先研制了一种运用于材料粘着、摩擦综合实验台测力部分的二维小量程力传感器,该传感器在后续实验中取得良好的效果。
短句来源
     The self repairing performance of LaF_3 particle was also evaluated by comparing the weight of the steel balls before and after friction tests.
     通过对试验前后钢球的称重分析,评价了LaF3在润滑脂中的自修复性能.
短句来源
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  相似匹配句对
     Wear and friction tests were done.
     摩擦磨损实验测定了薄膜的磨损性能。
短句来源
     On Friction
     谈谈摩擦力
短句来源
     Study on interfacial friction effect in the SHPB tests
     SHPB实验中端面摩擦效应研究
短句来源
     and V.P. tests are negative.
     MR和 V.P.
短句来源
     level tests;
     企业信息化水平测评的研究。
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  friction tests
Laboratory room temperature triaxial friction tests on sawcut granite and serpentinite specimens suggest that stick-slip at high confining pressures is preceded by dilatancy in the intact rock adjacent to the shear surface.
      
Three orders of magnitude lower volume loss were found for CC-TS (HVOF) after friction tests compared with HC.
      
Microhardness and friction tests were carried out to measure the hardness depth profile and friction coefficient at the surface.
      
Friction tests, simulative formability tests, and coating characterization were performed.
      
Friction tests were carried out at three different loads of 44, 88, and 176 N using a pin-on-disk testing method for the base copper alloy and the copper-graphite composite against a 1045 steel disk counterface.
      
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In the view of reasonable selection of the friction couple, a systematicexperimental study simulating the operating mode has been completed on a constant velocity type friction test machine. The test friction couples consist of two types of material pieces of drilling rig brake blocks (molded asbestos and woven asbestos) and test disks made from five types of materials of drilling rig rims. In this paper, the influence of specific pressure, velocity and temperature on the friction...

In the view of reasonable selection of the friction couple, a systematicexperimental study simulating the operating mode has been completed on a constant velocity type friction test machine. The test friction couples consist of two types of material pieces of drilling rig brake blocks (molded asbestos and woven asbestos) and test disks made from five types of materials of drilling rig rims. In this paper, the influence of specific pressure, velocity and temperature on the friction and wear characteristics of friction couples is investigated and the better brake pair domestic materials are screened out; moreover, it is concluded that the tribological performance of home made ZJS -771 brake blocks are better than several foreign products of the same type, and that 18CrMnSiMoVA can be used as brake rim's material instead of 18Cr 3MoWB.

本文从合理选配摩擦对偶的观点出发,用两种类型的钻机刹车块材料(压制型和编织型)的小试样,与用钻机刹车鼓材料制成的对偶圆盘在定速式摩擦试验机上,以模拟下钻工况的试验规范进行了系统的试验。主要研究了比压、速度和温度对刹车副材料摩擦磨损性能的影响;并初步筛选出性能优良的国产刹车副材料,试验表明,国产ZJS-771型编织型刹车块的摩擦磨损性能已超过某些国外的同类型产品,而刹车鼓材料可用18CrMnSiMoVA取代18Cr3MoWB。

The paper describes a special equipment for vacuum friction test, and presents f-v test curves for combinations of PTFE-granite, PTFE-chromium plating steel and PTFE-steel ball in a vacuum of 10-3 Torr. It, in addition, gives the kinetic and static coefficients of friction of the combination of PTFE and granite under various contact stress, and also gives a comparison of f-v curves in atmosphere with that in a vacuum.The results indicate that, of three combinations, the PTFE-granite couple...

The paper describes a special equipment for vacuum friction test, and presents f-v test curves for combinations of PTFE-granite, PTFE-chromium plating steel and PTFE-steel ball in a vacuum of 10-3 Torr. It, in addition, gives the kinetic and static coefficients of friction of the combination of PTFE and granite under various contact stress, and also gives a comparison of f-v curves in atmosphere with that in a vacuum.The results indicate that, of three combinations, the PTFE-granite couple has the smallest difference, only 0.02, between the kinetic and the static coefficient. The combination of PTFE and chromium plating steel, on the other hand, provides a lowest kinetic coefficient, 0.067, but the largest difference between the kinetic and static coefficient. Thus, it is possible to use PTFE-granite as the sideway face material at low speed and load in a vacuum to reduce stick-slip.

本文描述了一台专用的真空摩擦试验装置,并给出了真空度为10~(-3)托下,PTFE-花岗石、PTFE—镀铬铜和PTFE—钢球三种摩擦副材料的f-v实验曲线;给出了接触压力为不同数值时PTFE—花岗石的动、静摩擦系数,并比较了它们在大气和真空下的f—v曲线。试验结果表明,PTFE—花岗石的动、静摩擦系数之差是三种摩擦副中最低的,仅为0.02。而PTFE—镀铬铜的动摩擦系数最低(0.067),但其动、静摩擦系数之差最大。故选用PTF正-花岗石作为真空中低速、低负荷工作台导轨面材料有可能收到减小低速爬行的效果。

A method of studying oil films at dynamic state is presented.A set of electric apparatus was mounted on a four ball tester and the variations of oscillogram and voltage between upper ball and lower balls were examined to identify whether the oil film in frictional couple exists. The critical load for oil film failure decreases with an increase in operating speed in the friction test using 50, gear oil.A phenomenon that the oil film appears and disappears alternatively twice was observed during the test...

A method of studying oil films at dynamic state is presented.A set of electric apparatus was mounted on a four ball tester and the variations of oscillogram and voltage between upper ball and lower balls were examined to identify whether the oil film in frictional couple exists. The critical load for oil film failure decreases with an increase in operating speed in the friction test using 50, gear oil.A phenomenon that the oil film appears and disappears alternatively twice was observed during the test in which the load increased .These results indicate that the application of an added voltage method to study oil film in frictional couple at dynamic state is avalable.

本文介绍了一种在动态下研究油膜的方法。它是在四球试验机上安装一套电器装置,通过观察上下球之间的电压值和示波器波形变化来判断摩擦付间润滑膜的存在与否。作者在50~#齿轮油的摩擦试验中,获得了油膜破裂负荷随运转速度的上升而下降的关系;在随负荷增加的摩擦过程中出现两个有膜区和两个无膜区的结果。由这些结果表明,用这种外加电压法来研究动态下摩擦付之间润滑膜的存在与否是可行的方法之一。

 
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