surface coefficient of friction 中文意思是什麼

surface coefficient of friction 解釋
表面摩擦系數
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  • coefficient : adj. 共同作用的。n. 1. 共同作用；協同因素。2. 【數，物】系數，率；程度。
  • of : OF ＝Old French 古法語。
  • friction : n. 1. 摩擦，阻力。2. 傾軋，沖突，不和 （between）。3. 擦熱皮膚。
  1. Abstract : molecular deposition ( md ) film, a nano film, is assembled by the interaction of static charge between cationic and anionic compounds. the micro - friction properties of an md film on silica has been studied with atomic force microscope ( afm ). it has been found that the md film has lower coefficient of friction as compared with the original surface of silica. moreover, based on the analyses of the surface force versus distance curves, photographic image, friction force image, and modulated force image, it is concluded that the friction reduction effect of md film on silica is attributed to the surface adhesion reduction and surface micro - modification

    文摘:利用原子力顯微鏡對石英巖表面單層分子沉積膜的微觀摩擦特性進行了研究，發現該分子沉積膜具有一定的減摩性.通過對其表面力-位移曲線、表面形貌像、調制力像和摩擦力像的進一步分析表明，石英巖表面分子沉積膜具有減摩作用的原因在於它能夠降低表面的粘著力並對表面具有微觀修飾作用
  2. Against slip coefficient between friction surface of high - strength bolted connection

    高強度螺栓摩擦面抗滑移系數
  3. The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film

    試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。
  4. It has been discovered that ( 1 ) in the region between 100 - 350 the friction coefficient is lowering along with the swing of temperature ; ( 2 ) the friction coefficient is the highest at the temperature of 500, and adhesive wear occurred ; ( 3 ) the global graphite grain layer appeared at the surface of wear scar at 450n and 300, and played an extremely good effect of lubrication, thus makes a fairly lower wear at the temperature of 300

    發現： （ 1 ）在100 ~ 350區間，隨溫度的升高，摩擦因數在降低； （ 2 ）在500時，摩擦因數最高，且發生了粘著磨損； （ 3 ）在450n ， 300時，磨痕表面出現了球狀的石墨顆拉層，這起到了極好的潤滑作用，使得300時，磨損較低。
  5. Biology enzyme is adopted to deal with the rabbit wool fibre, which changes the modality and configuration of the rabbit wool fibre, improves fibre ' s surface friction coefficient, fortifies the holding force among the fibres, enhances the spinnability, and meliorates the depilation of the rabbit wool textiles

    摘要對兔毛纖維採用生物酶處理，使其形態結構發生改變，從而提高了兔毛纖維的表面摩擦系數，增加了纖維之間的抱合力，提高了纖維的可紡性，改善了兔毛紡織品的脫毛現象。
  6. In the process of emergent brake, relations among brake press, parameters of the entire vehicle and adhesive coefficient between tire and road surface influence the distribution of brake disc friction temperature field greatly

    在緊急制動過程中，制動壓力、整車參數以及輪胎與路面間附著系數之間的關系對制動器摩擦溫度場分佈有重要的影響。
  7. Moreover, it was found that the microstructure and physical properties of dlc film were affected to some extent by the distance between target and substrate. when the distance between target and substrate increases, sp 3c content in the deposited dlc film decreases. accordingly, the value of surface roughness, microhardness, friction coefficient, residual stress and band gap became lower in the same way

    此外，靶基距對dlc薄膜的結構和性能也有一定的影響，隨著靶基距增加， dlc薄膜中的sp ~ 3c含量減少， dlc薄膜的表面粗糙度降低，顯微硬度降低，摩擦系數減小，殘余應力減小，光學帶隙eg減小。
  8. It is found that the microstructure and properties of as - deposited dlc films is seriously dependent on the substrate temperature used in deposition processes. with the increase of substrate temperature, sp 3c content in the deposited dlc film decreases, surface roughness and friction coefficient of deposited dlc films increase. at the same time, microhardness, residual stress and optical band gap became lower

    研究發現，基片溫度對dlc薄膜的結構和性能影響最明顯，隨著薄膜沉積過程中基片溫度的增加， dlc薄膜中的sp ~ 3c含量減少， dlc薄膜的表面粗糙度增加， dlc薄膜的顯微硬度降低， dlc薄膜的摩擦系數增大， dlc薄膜的殘余應力都是減小的，光學帶隙eg變窄。
  9. Based on the analysis, we gave an example to study the dynamic contact with friction of the intermittent joint, and got some essential rules : the friction coefficient could n ' t influence the distributing of dynamic stress on the contact surface, and the roading rates affected evidently on the dynamic characteristic on the contact surface. in the last part, this paper made respectively use of the time - history method and the response spectrum method to analyze the dynamic response of the rock slope on baise hydraulic power plant, and got the coincident resultant. simultaneously, the contact theory was applied to study the stability of the intermittent joints

    基於上述的接觸理論和接觸分析結果，本文在最後一部分中分別利用動力時程法和反應譜法對百色水電站尾水渠的巖質邊坡進行動力響應分析，兩者計算方法得出比較一致的結果，同時採用動力摩擦接觸理論重點分析了斷層對于邊坡的穩定影響，認為斷層的存在會使得巖坡的穩定性降低，在地震等動力荷載的作用下對于斷層將發生張開、閉合和錯動現象，尤其是動力荷載和其他荷載如滲流力等的耦合作用將會對斷層產生極為不利的後果，進而影響巖坡的整體動力穩定，應該要引起足夠的重視。
  10. Cnx coating provided a comparable to or better surface than dlc for the normal cellular attachment, growth and morp hology. compared with dlc, cnx coating also exhibited higher hardness, lower coefficient of friction, lower roughness, and lower corrosion, which obviously contributed to more sp3c structure and indicated a longer wear and corrosion life for cnx coating

    本試驗中所制備的碳氮薄膜和類金剛石薄膜都具有很好的光潔度，但cn膜表面的針狀突起少於dlc膜表面，整體更加勻實光滑，三種薄膜的硬度和拉伸強度都很高，顯示出良好的機械性能和很低的摩擦系數。
  11. Owing to the interfacial cracking which occurs under higher applied load conditions, the composite with high content of tib _ 2 phase exhibited a transition from mild wear to severe wear over the applied load range from 10 n to 80 n. under moderate applied load, increasing the sliding speed caused a decrease in wear rate and friction coefficient of the in - situ composites because the formation of a protective oxide film occurred on the sliding surface and the hardness of the subsurface layer was maintained due to reinforcement of tib2 nanoparticles in the cu matrix

    隨著載荷的增加， cu -納米tib2原位復合材料的磨損率和摩擦系數增加；由於在較高載荷下發生表面開裂，高含量的tib2相增強原位復合材料發生了由輕度磨損向嚴重磨損形式的轉化。在中等載荷下由於表面保護性氧化膜的形成和基體中納米tib2相的存在使復合材料具有良好的抗軟化能力， cu -納米tib2原位復合材料的磨損率和摩擦系數隨著滑動速度的增加而下降。
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