AlCl3/TiCl4催化癸烯聚合制润滑油基础油的研究

以AlCl3/TiCl4为催化剂对癸烯聚合制润滑油基础油进行了研究。考察了催化剂用量、Al与Ti摩尔比、反应时间和反应温度等工艺条件对合成油性质的影响，并比较了不同催化剂、不同烯烃原料对聚α-烯烃(PAO)性质的影响。结果表明，癸烯聚合制备PAO，AlCl3/TiCl4是较适宜的催化剂。PAO收率随着AlCl3/TiCl4催化剂用量的增大、反应温度的升高以及反应时间的延长而提高，但随着Al与Ti摩尔比的增加而迅速下降；粘度指数在所考察的条件范围内均较高；100 ℃下的运动粘度随着Al与Ti摩尔比的变化而急剧变化，因此可以根据需求，通过调节Al与Ti摩尔比，可制备各种粘度等级的PAO产品。     

Evaluation of sodium acetylacetonate as a synergist for arylamine antioxidants in synthetic lubricants

Differential scanning calorimetry (DSC) was employed to evaluate the performance of an ester lubricant containing sodium acetylacetonate. In the isothermal DSC oxidation test, sodium acetylacetonate is an effective synergist for arylamine antioxidant p,p′-dioctyldiphenylamine (DODPA). When combining with arylamine antioxidants, sodium acetylacetonate can also effectively reduce the increases in viscosity and acid number of the ester oil in oxidation–corrosion test. The electron paramagnetic resonance (EPR) results indicated that sodium acetylacetonate can reduce the free radical contents in the oxidized oil with arylamine antioxidants present.     

Lubricant effects on strain fields of seven wire strands subjected to tensile load

As a part of an extensive analysis on strand behaviour the lubricant effect in strain fields was examined. The strains were measured by using electrical resistance strain gauges. The results obtained, by loading the unlubricated and lubricated sample both statically and quasi-statically, showed relevant effects caused by different contact loads developed among the wires. By examining the strains measured during the severing of one helical wire the inapplicability to the strands of one Italian regulation relative to wire ropes, was also confirmed.     

谈纸厂机械设备润滑剂的合理选用

纸厂机械设备主要用润滑油或润滑脂来润滑,正确选择和使用润滑油脂是做好纸厂机械设备润滑工作的关键。对润滑油脂的选用方法和使用要点作了简要的论述。     

Tribological properties of pulsed laser deposited Mo-S-Te composite films at moderate high temperatures

Tribological investigations of Mo-S-Te composite films were conducted on films grown at room temperature by pulsed laser deposition. The chemistry and microstructure of the films were characterized by X-ray diffraction, scanning electron microscopy, X-ray energy dispersive spectroscopy, and micro Raman spectroscopy. The films showed a granular morphology and a preferred basal plane growth of 2H-MoS₂ parallel to the substrate after annealing at high temperatures. The friction coefficients of the films were 0.05 at 300 °C and 0.10 at 450 °C for more than 10,000 cycles in air. Smeared hexagonal MoS₂ lubricant films were observed inside wear tracks while the tribochemical formation of wear debris occurred both inside and outside the wear tracks. The Te additives for increasing the film durability were proposed to slow oxidation of the lubricants at elevated temperatures by thermally-induced tellurium migration to the surface and the subsequent formation of the Te diffusion barrier. This mechanism could be significantly effective in high-temperature tribotests because of the increased tellurium mobility at high temperatures.     

JG3合成型汽车制动液的研制

叙述了 JG3合成汽车制动液的配方研制过程,试验证明,该产品具有优良的高温抗气阻性、良好的低温流动性、抗腐蚀性,以及对橡胶皮碗的不溶胀性,该配方已达到GB10830—89标准及台架试验要求。     

国内外生物降解性润滑剂现状及发展趋势

介绍了国外生物降解性润滑剂的种类、性能及应用情况,提出了我国生物降解性润滑剂将来的研究方向及对策意见。     

自润滑钢板的生产

介绍了国外自润滑钢板的研究和生产工艺，自润滑钢板有机涂层的组成，以及国外自润滑钢板的生产情况，同时提出了攀钢生产自润滑钢板的建议。     

一种防卡咬螺纹润滑剂的理化和摩擦学性能研究

Di-aromatics base oil and graphite powder, adding with viscosity index improver and anti-oxidant and rheological additive, were used to prepare a kind of anti-seize thread lubricant. Its physical chemistry properties, such as water resistance, thermal oxidation and aging properties, tribological performance were evaluated and compared with those of some commercial product. The results show that the overall the overall performance of the anti-seize thread lubricant met the level of some commercial product, and some properties such as thermal stability, anti-wear and anti-friction properties were better. It is more suitable for high temperature conditions.