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 。
Our main products include all types of automobile halogen lamps, hid xenon lamp, motorcycle lamps and store floodlight. with high quality, long servic life and top grade, our proudcts sale well both in domestic and abroad market, and have won trust of the cutormer
我廠主要產品有汽車鹵素燈、高壓放射氙氣燈、
摩托車燈、商場照明燈系列，品質優、
壽命長、檔次高，信譽好，贏得了廣大客戶的信賴，產品暢銷國內外。
The success has developed the high tech health care product, it massages the teacher different technique through the machinery imitation, enables the human body to achieve promotes the whole body blood circulation, relaxes the muscles and joints and stimulate blood circulation, relaxes the spinal cord, eliminates wearily, strengthens goal of the metabolism, achieved builds up strength the health care, prolongs the life the effect
成功研製了高科技保健產品，它通過機械模仿按
摩師不同手法，使人體達到促進全身血液循環，舒筋活絡，放鬆脊髓，消除疲勞，加強新陳代謝之目的，達到強身保健，延年益
壽之功效。
Friction wears away metal in the moving parts, which shortens their working life
運動部件間的
摩擦力使金屬磨損，這就縮短了運動部件的使用
壽命。
When mixed with the lubricating oil, the nanometer particles can improve lubricating oil ' s abilities of extreme pressure, anti - wear and reduce frictional resistance
將納米粒子加入到潤滑油中，可以提高其極壓性能和抗磨性能，減少
摩擦阻力，延長機器零部件的使用
壽命。
Study efficiency, friction and wearing and tearing theory, strength life - span, stucture volume of different mechanical trasmission. explore the new - type transmission ways
研究各種機械傳動的效率、
摩擦與磨損理論、強度
壽命、結構體積，探索新型傳動方式。
The experimental result shows that it can improve significantly the abrasive resistance and increase the service life of the moving parts of shiplock by optimizing the match of supportive materials for abrasion and the value of their hardness, improving the precision and roughness of abrasive parts in the process of production, and applying correct lubrication method to the abrasive parts
實驗結果表明：對船閘
摩擦副材料及硬度值進行合理的匹配，提高船閘運轉件
摩擦副零件的加工精度及表面粗糙度，以及運用正確的潤滑方式對
摩擦副進行潤滑，能顯著提高零件的耐磨性能，較大地延長了船閘運轉件的使用
壽命。
The internal surface of cylinder is honed and processed so that the fricition coefficient is low and the service life is long
氣缸內表面經精細珩磨加工，
摩擦系數低，使用
壽命長。
As for complicated dynamic wear, its whole process from beginning to end has not been comprehended clearly up to the present, and there are still three difficult problems awaited to solve, which include the wear longevity forecast of the rub, status surveillance and parameter optimization design
然而，現行的磨損研究方法普遍採用大量的模擬試驗來進行經驗性的探索，而對復雜的動態磨損問題，至今還難以清楚地了解其從始至終的全過程，仍然存在三大難題有待于解決。它們是：
摩擦副磨損
壽命預測、狀態監測及參數優化設計。
Soft pu rollers were used for printing and glazing industry. hard pu rollers were used for iron and steel industry. other polyurethane elastomer such as pu slice, pu bar, pu piece were widely used in all kinds of machine for reduce attrition, acid - resistant, water resistance, insulation with higher toughness, tear strength and low hardness
4 .耐濕性能好，可在水為介質的條件下工作，且在水油等介質的情況下，鑫發聚氨酯與物料的
摩擦系數降低，更利於透篩，提高篩分效率，並可避免潮濕微粒的粘附，同時因磨擦系數降低，磨損減少，使用
壽命提高。
As well as keeping moisture out, cleaning the strings down with a cloth and rubbing wax on the stringbed prolongs string life by reducing friction and notching between strings
同樣是為了避免潮氣，用布擦拭腸線然後上蜂蠟，減少
摩擦和切痕來延長球線
壽命。
The crucial technologies of highly - displacement well mainly include torque / friction and wellbore trajectory control tool, and these technologies require rock bit have the following characteristics : having gage protection ability, long axletree lifespan, wear - resisting shirt - tail and head o. d., and high - temperature - resistant sealed system, etc
大位移井的關鍵技術主要有扭矩
摩阻和井眼軌道控制工具，這些技術要求鉆頭具有以下特點：具有良好的保徑能力，軸承
壽命長，掌尖和掌背部位耐磨損，密封系統耐高溫等。
The output axis and the piston have chosen high quality bearing which have good stability and sealing, low friction coefficient, large range of applicable temperature and long service lift
輸出軸，活塞選擇了高質量的軸承，穩定性好，密封性好，摩擦系數低，適用溫度范圍大，使用壽命長。
