Basic Lubricat Knowledge
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Lubricants are substances that reduce friction between moving parts. This document discusses the basic properties and types of lubricants. It defines lubricants as liquids or greases that decrease machine friction. It then covers key lubricant properties like viscosity, viscosity index, pour point, and flash point. Finally, it categorizes lubricants based on physical state, use, grade, and source; and discusses common additive types for mineral and synthetic lubricants.
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Basic of-lubricants
The document discusses the basics of lubrication and lubricants. It defines lubrication as using a material between surfaces to reduce friction. There are two main methods of lubrication - hydrodynamic lubrication and boundary lubrication. Hydrodynamic lubrication occurs when two surfaces are completely separated by a fluid film, while boundary lubrication occurs when hydrodynamic lubrication fails through adsorption or chemical reaction. Common types of lubricants include liquids, solids, and semi-solids. The document also discusses properties of lubricants like viscosity, viscosity index, pour point, and flash point. It provides examples of typical lubricant applications and components like base oils and additives.
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1. Lubricants reduce friction and wear between moving parts, protect from corrosion, and carry away heat. The main types are solid, semi-solid (grease), and liquid.
2. Important lubricant properties include viscosity, viscosity index, flash point, pour point, and demulsification number. Additives enhance properties like chemical stability, viscosity, contamination control, and lubricity.
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Lubrication is one of the main preventative maintenance activities.
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Oil analysis identifies early signs of contamination, fluid degradation and abnormal wear before they cause costly and permanent damage to equipment.
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Lubrication is important to reduce friction between moving parts and prevent damage. Lubricants like oils minimize friction and energy loss from rubbing surfaces. The main functions of lubricating oil are to reduce friction and wear, act as a coolant, reduce noise, provide sealing and cushioning. Good lubricants have properties like high viscosity index, chemical and thermal stability, cleanliness and resistance to extreme pressure. Lubricants can be mineral oils from petroleum, synthetic or animal/vegetable oils, and come as liquids, greases or solids. Lubrication systems include splash, pressure and dry sump to deliver oil under pressure to engine components like bearings and gears.
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Basic Of Lubricants and Lubrication
The document discusses the basics of lubricants and lubrication. It defines lubrication as using a material between surfaces to reduce friction. The two main methods of lubrication are hydrodynamic lubrication and boundary lubrication. It also describes different types of lubricants including liquids, solids, and gases. It provides examples of typical lubricants and their applications.
Lubrication in Automotive Gears
This document discusses lubrication in automotive gears. It begins by defining gears and their main functions in transmitting power and changing speed or direction. The main functions of gear lubricants are then outlined as reducing friction, wear, heat and noise while protecting against corrosion and metal contact. Various factors that affect gear life are also reviewed. The document proceeds to discuss classifications and specifications for automotive gear oils, including SAE viscosity grades and API service classifications. Common gear failure mechanisms like pitting, spalling and scuffing are then summarized. Finally, the document outlines some potential oil-related problems in gearboxes like foaming, noise, thickening and overheating.
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The document discusses the global lubricants market. It notes that the global demand for lubricants is 41.7 million metric tons, with Asia being the third largest market. The lubricants industry has seen 1700 players consolidate into bigger companies through mergers to increase stability. Technology and engineering have improved lubricant quality and increased demand. Lubricants see derived demand from gasoline, diesel, kerosene and fuel oil. They are also jointly demanded for applications like brake fluids, greases, hydraulic fluids and more. Key organizational customers include OEM manufacturers, car dealerships, fleet operators and race teams. The lubricants market is segmented into automotive, industrial and marine. Market strategies focus on branding, pricing, accessibility, services
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This document summarizes an Israeli company established in 2009 that develops nanotechnology lubricant additives under the brand name NanoLub. NanoLub uses inorganic nanoparticles made from tungsten ore to enhance lubricating oils and greases. Studies show NanoLub outperforms conventional additives by reducing friction and wear while increasing engine efficiency. The company aims to sell NanoLub products directly and through agents to industries including automotive, mining, and aerospace.
Cutting fluids (ina)
Cutting fluids digunakan dalam operasi permesinan untuk mengurangi panas dan gesekan. Terdiri dari pendingin berbasis air dan pelumas berbasis minyak, masing-masing efektif pada kecepatan potong tinggi dan rendah. Unsur seperti belerang dan klorin dapat menurunkan gesekan dengan membentuk paduan logam. Kontaminasi dapat dicegah dengan penyaringan berkala dan penggantian fluida. Dry machining juga dapat digunakan tanpa fluida
NTM Mobil - Lubricant Base Oil Groups
The document discusses base oil classifications and properties. It describes how crude oil is distilled to produce base oils, which are then classified by the American Petroleum Institute (API) into Groups based on characteristics like saturates content and sulfur levels. Group I oils are solvent-refined while Groups II-III are hydroprocessed and Group IV includes polyalphaolefins. The properties of each Group are outlined, with higher-numbered Groups generally having better viscosity-temperature properties and oxidation resistance.
Base oil sadikun
The document discusses base oil, which makes up 80-99% of lubricant composition. It defines base oil as the largest component of lubricants, which can be derived from mineral oil refining or synthetic production. The properties of base oils, including molecular composition and distribution, influence the characteristics and performance of lubricants. Refining processes such as distillation are used to obtain base oils by reducing undesirable molecules and increasing desirable ones.
Reliability Centered Lubrication
This document summarizes a reliability-centered lubrication workshop offered by GPAllied on various dates in 2022. The 2-3 day workshop is designed for maintenance managers, engineers, and operators to teach the fundamentals and process of reliability-centered lubrication. Attendees will learn about lubrication strategies, theory, contamination control, oil sampling, and how to implement effective lubrication programs. The workshop costs vary based on location but has a maximum of 20 attendees. It will be presented by Matt Spurlock, who has over 17 years of experience in lubrication and oil analysis.
Motor lubrication
The Gerhardt pump is a positive displacement plunger pump that can accurately deliver lubricating fluids or process liquids at high pressure. It is suitable for centralized lubrication systems due to its ability to precisely meter fluid over a wide range of pressures. The company's website provides information on lubrication pumps and lubricators for industrial machinery applications.
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If we want to understand the principles of Lubrication, it becomes extremely important to learn about Viscosity because Viscosity is perhaps the single-most important factor and characteristic of oil which directly impacts the performance of the engine. Let’s go back to the definition to get a clear understanding!
https://shieldoils.com/principles-of-lubrication/
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This presentation contains detailed classification of Lubricants on the basis of raw material, usages and viscosity( Monograde oils and Multigrade oils). This presentation will be more helpful to students and researchers by understanding lubricants in details.
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The document discusses lubrication systems for engines. It describes the purpose of lubrication as reducing friction, protecting from wear, removing impurities, forming seals, and serving as a coolant. The main lubrication systems are mist, wet sump, and dry sump. Mist lubrication uses oil mixed with fuel for 2-stroke engines. Wet sump systems include splash and circulating pumps or pressure systems. Properties of lubricants that are important include viscosity, flash point, pour point, and additives that improve properties.
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From the very beginning the machine age has depended on lubrication to keep the gears, shafts and wheels of progress turning. Over the years in agriculture, industry, construction, transportation on the roads and off lubricants have played a critical role in getting the job done and today ever more sophisticated vehicles and machines, demand ever more sophisticated lubrication products.
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Basic Lubricat Knowledge
- 1. Basic Lubricant Knowledge BY: AUNG KHAING HTUN LUBE ENGINEER MJL & AKT PETROLEUM LTD.
- 2. AIM • To get knowledge about lubricants and additives • To know types of lubricant
- 3. What is lubricant? Properties of lubrication Basic Lubricant Knowledge Classification of lubricants Additives
- 4. What is lubricant? • The substances which are used to decrease the force of friction between the moving parts of machine in contact • All liquids will provide lubrication to a degree • There are two main groups, oil lubricants and grease lubricants Basic Lubricant Knowledge
- 5. Properties of lubricant • Viscosity • Viscosity Index • Pour Point • Flash Point • Consistency or penetration number (Grease) • Dropping Point (Grease) • Structural Stability Basic Lubricant Knowledge
- 6. Viscosity • One of the main properties of any oil lubricant • Is the measure of a lubricant’s resistant to flow • Measured by petroleum industry in centistokes, which numerically equal to mm2/s • First consideration in selecting lubricant oil for specific applications Properties of lubricant
- 7. ViscosityProperties of lubricant Operation condition VS viscosity needed • Higher load requires high viscosity • Higher temperature requires higher viscosity • Increased speed requires lower viscosity
- 8. Viscosity index • The property of resisting changes in viscosity due to changes in temperature • The higher the VI number of oil, the less tendency for its viscosity to change with the changes in temperature Properties of lubricant
- 9. Pour Point • The lowest temperature at which the oil will flow Properties of lubricant
- 10. Flash Point • Minimum temperature at which sufficient liquid is vaporized to create a mixture of fuel and air that will burn if exposed to a source of spark Properties of lubricant
- 11. Consistency or penetration number (grease) • Is defined as its resistibility to deformation under an applied force, in other words its relative stiffness or hardness Properties of lubricant
- 12. Dropping point • The temperature at which the oil separates from the thickener Properties of lubricant
- 13. Structural stability • The ability of the grease to resist changes in consistency during mechanical working Properties of lubricant
- 14. Classification of lubricants Based on condition • Solid lubricants • Semi solid lubricants • Liquid lubricants Based on use • Automotive lubricants • Industrial lubricants • Special lubricants Basic Lubricant Knowledge
- 15. Classification of lubricants (Cont’d) Based on grade • Multi grade lubricants • Mono grade lubricants Based on source • Mineral based lubricants • Synthetic based lubricants Basic Lubricant Knowledge
- 16. Mineral based lubricants • The mineral lubricants get from crude oil through refine. • Need to add additives, usually 10% Classification of lubricants
- 17. Synthetic based lubricants • Is a lubricant consisting of chemical compounds that are artificially made (synthesized). • Synthetic lubricants can be manufactured using chemically modified petroleum components rather than whole crude oil Classification of lubricants
- 18. Semisolid lubricants • Greases • An oil with thickening agent added Classification of lubricants
- 19. Solid lubricants • There are many types of solid lubricant used for different applications • Synthetic, metallic or mineral powders such as PTFE (Teflon), copper, graphite Classification of lubricants