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Lubrication

Xem 1-20 trên 407 kết quả Lubrication
  • This handbook is intended to help engineers in industry with the operation and maintenance of machinery. It gives the information that these engineers need in a form that is instantly accessible and easy to read. The manufacturers of machinery provide guidance on the operation, lubrication and maintenance required for their particular machines.

    pdf265p beobobeo 01-08-2012 97 33   Download

  • Volume II of the Handbook of Lubrication (Tribology) provides coverage of basic theory involved in friction, wear, and lubrication; characteristics and application practices for lubricants; and design principles for lubricated machine elements such as bearings, gears, couplings, and seals.

    pdf658p trinhvang 18-01-2013 74 27   Download

  • This manual provides guidance on lubricants and hydraulic fluids to engineering, operations, maintenance, and construction personnel and other individuals responsible for the U.S. Army Corps of Engineers (USACE) civil works equipment. Applicability. This manual applies to all USACE commands having civil works responsibility. 3. Discussion. This manual is intended to be a practical guide to lubrication with enough technical detail to allow personnel to recognize and easily discern

    pdf0p chipmoon 19-07-2012 79 23   Download

  • The most important function of lubricants is the reduction of friction and wear and in some cases, the relative movement of two bearing surfaces is only possible if a lubricant is present. In times when saving energy and resources and cutting emission have become central environmental matters, lubricants are increasingly attracting public awareness. Scientific research has shown that 0.4% of gross domestic product could be saved in terms of energy in Western industrialized countries if current tribological knowledge, i.e.

    pdf0p beobobeo 01-08-2012 63 16   Download

  • The lubrication of rolling bearings – similar to that of sliding bearings – mainly serves one purpose: to avoid or at least reduce metal-to-metal contact between the rolling and sliding contact surfaces, i.e. to reduce friction and wear in the bearing. Oil, adhering to the surfaces of the parts in rolling contact, is fed between the contact areas. The oil film separates the contact surfaces preventing metal-to-metal contact (»physical lubrication«).

    pdf69p beobobeo 01-08-2012 74 8   Download

  • This paper presents the experimental study results of the effect of lubricant oil on combustion chamber deposit formation in diesel engines when using the lubricant oil blended with diesel fuel.

    pdf5p vidoraemon2711 04-06-2019 11 0   Download

  • In the paper, results of effect of lubricants on wall thickness in the deep drawing process are researched. The results are verified by the simulation and experimental. The research results order to reduce the minimum thickness of sheet metal in the deep drawing, selection of reasonable lubricants, contribute to improve product quality and meet the requirements of the working conditions of the product.

    pdf6p viengland2711 23-07-2019 4 0   Download

  • This paper proposes an approach to determine the instability threshold for the internal gear motors and pumps based on the safe film thickness. By using the mobility method, the maximum eccentricity and the minimum oil lubrication film thickness can be determined, consequently, the minimum speed limit can be retrieved.

    pdf7p vistockholm2711 13-12-2019 5 0   Download

  • This research focus on to presents of the MQL parameters optimization approach in which the multi-response outputs based on Taguchi's L9 orthogonal array method is used. During the turning AISI-1045 steel, the cutting temperature, the maximum of tool wear, and the surface roughness were measured. The MQL parameters which are ratio of soluble lubricant and water, pressure of spray head, flow volume of emulsion was simultaneously optimized by taking the multi-response outputs using Taguchi based grey relational analysis (GRA) into consideration.

    pdf11p trinhthamhodang9 04-12-2020 5 0   Download

  • Proteoglycan 4 (PRG4) and hyaluronan (HA) are key synovial fluid constituents that contribute synergistically to cartilage boundary lubrication; however, the effects of their concentrations as well as their structure, both of which can be altered in osteoarthritis, on this functional synergism are unknown.

    pdf10p vioregon2711 22-02-2021 3 0   Download

  • This paper presents a visualization solution of the stress state of the connecting-rod big end in the experimental device for lubricating of the connecting-rod big end bearing. The connecting-rod model is in photoelastic material that is subjected to the load simulation corresponding to the engine's operating cycle.

    pdf6p trinhthamhodang1218 04-03-2021 3 0   Download

  • Marine Corps Institute Cooling and Lubrication System Maintenance

    pdf40p lyacau 30-12-2009 80 36   Download

  • The phenomenon of friction has been part of daily life since the beginning of human existence. It is no surprise that some of the earliest human activities involved the reduction of friction when it was wasteful, or the use of friction when it could be beneficial. The first category includes the use of vegetable oils and animal fats as lubricants, as well as the use of rolling motion to take advantage of the resulting low resistance to movement.

    pdf40p lyacau 30-12-2009 84 29   Download

  • Since the dawn of history, human activities have always been closely related to friction, the resistance to sliding. It is thanks to friction that one can stand and walk on the ground, one can wear clothes, one can make fire by rubbing two sticks together, or one can even start and stop a car. In these cases friction is very useful for human beings. In many other cases, however, human activities have been very much hampered by friction since ancient times. How to diminish friction is one of the most basic technological problems. For example, when a heavy...

    pdf238p beobobeo 01-08-2012 85 21   Download

  • Tham khảo tài liệu 'cooling and lubrication system maintenance p2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf10p lyacau 30-12-2009 86 21   Download

  • Records show the use of wheels from 3500 BC, which illustrates our ancestors’ concern with reducing friction in translationary motion. The transportation of large stone building blocks and monuments required the know-how of frictional devices and lubricants, such as water-lubricated sleds. Figure 1.1 illustrates the use of a sledge to transport a heavy statue by Egyptians circa 1880 BC...

    pdf275p iamvip01 18-04-2012 73 20   Download

  • Tham khảo sách 'tribology - lubricants and lubrication_2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf148p 123859674 04-07-2012 71 20   Download

  • This book is intended primarily to be used as a te xtbook, written on the level of senior and graduate students with proficiency in engineering or sciences. It is intended to bring everyone who wants to solve problems in friction and wear to the same understanding of what is (and, more important, what is not) involved. Most engineers and scientists have learned a few simple truths about friction and wear, few of which seem relevant when problems arise. It turns out that the “truths” are often too simple and couched too much in the terms of the academic discipline in...

    pdf263p trinhvang 18-01-2013 56 17   Download

  • This book explains the theory, components, and practical applications of systems in turboprop, turojet, and turbofan aircraft. The author clearly examines electrical, turbine engine, lubrication and coooling , and other systems.

    pdf24p beobobeo 01-08-2012 76 14   Download

  • Bearings (both plain and rolling element) are used as important supporting elements for locating rotating components and confining their motion in desired direction. In order to ensure their operational reliability and desired life, these need to be properly designed/selected for an application more so because of ever increasing operational speeds. This requires the careful performance evaluation of different types of bearings considering aspects such as thermal stability, lubrication, contaminants in lubricants and controlling mechanism etc....

    pdf248p cucdai_1 19-10-2012 62 14   Download

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