Basic Lubrications
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Dokumen tersebut membahas tentang ilmu pelumasan (tribology) yang mencakup gesekan, keausan, dan pelumasan. Ia juga menjelaskan komposisi pelumas yang terdiri dari minyak dasar dan aditif, fungsi masing-masing aditif, serta sifat penting minyak mesin seperti viskositas dan kemampuan membersihkan. Diakhiri dengan penjelasan kondisi yang dapat menurunkan mutu pelumas.
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Lubrikasi
Dokumen tersebut membahas tentang pelumasan, termasuk filosofi, fungsi, karakteristik, jenis, aplikasi, dan metode pelumasan serta cara menyimpan pelumas. Jenis pelumas yang dijelaskan antara lain pelumas cair, semi padat, padat, serta istilah-istilah yang terkait dengan pelumasan.
Lubrication fundamentals
Lubrication is one of the main preventative maintenance activities.
Lubricants have a wide range of properties that impact their physical and chemical properties Knowing about these properties is important in determining which lubricant is best for which situation.
Oil analysis identifies early signs of contamination, fluid degradation and abnormal wear before they cause costly and permanent damage to equipment.
Lubricants
This document discusses lubricants, their functions, properties, types, additives, and testing. The key points are:
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.
3. Lubricants are tested using standards like ASTM to determine properties. Grease viscosity is indicated using NLGI grades while oil viscosity uses ISO viscosity grades. Tests measure viscosity,
Lubrication fundamentals
The document provides an overview of lubrication fundamentals including tribology, lubrication functions, lubrication films and regimes, base oils, additives, greases, lubricant failures, and oil analysis basics. It discusses topics such as how lubricants are formulated using base oils and additives, common lubricant types, mineral and synthetic base oil properties, grease consistency, grease thickeners, and ways that lubricants can fail through contamination, oxidation, thermal degradation, and additive depletion.
Lubrication Fundamentals: Lubricating Oil Basics
One of the most important things an operator can do for his machinery is to make sure it is properly lubricated. So what is a lubricant and how does it affect operations when used properly? In this webinar we will answer these questions and more by covering the fundamentals of lubrication. During this webinar we will discuss how a lubricant works to remove friction, the physical and chemical properties of the lubricant, and the many functions of a lubricant.
Lubrication and lubricants (1)
This document discusses lubricants used in chemistry. It covers the functions of lubricants in decreasing friction and absorbing heat. It describes different types of lubricants including oils, greases, and solid lubricants. It outlines the process for extracting lube oils from raw oil through steps like vacuum distillation, de-waxing, and hydrogen treatment. Key tests for lube oils are described like viscosity measurements and oxidation resistance tests. Factors for choosing lubricants are discussed like viscosity changes with temperature and resisting chemical reactions.
grease-overview-amp-application-presentation.pdf
This document provides an overview of greases, including their composition, manufacturing process, advantages, disadvantages, and applications. A grease consists of a thickening agent dispersed in a liquid lubricant. Common thickeners include metal soaps, such as lithium, calcium, and aluminum complexes. The manufacturing process involves mixing the thickener with base oils and additives. Milling the grease improves its consistency and stability. Greases are suitable for applications where oils cannot be contained and provide benefits such as excluding contaminants and lubricating intermittent machinery. However, greases also have disadvantages like reduced heat transfer compared to oils.
Mobil Lubricant Analysis
This presentation will explain the importance of used oil analysis. If you want to cut the cost, don't try to use cheap product but try to extend premium lubricant by monitoring with lubricant analysis.
Recommended
Lubrikasi
Dokumen tersebut membahas tentang pelumasan, termasuk filosofi, fungsi, karakteristik, jenis, aplikasi, dan metode pelumasan serta cara menyimpan pelumas. Jenis pelumas yang dijelaskan antara lain pelumas cair, semi padat, padat, serta istilah-istilah yang terkait dengan pelumasan.
Lubrication fundamentals
Lubrication is one of the main preventative maintenance activities.
Lubricants have a wide range of properties that impact their physical and chemical properties Knowing about these properties is important in determining which lubricant is best for which situation.
Oil analysis identifies early signs of contamination, fluid degradation and abnormal wear before they cause costly and permanent damage to equipment.
Lubricants
This document discusses lubricants, their functions, properties, types, additives, and testing. The key points are:
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.
3. Lubricants are tested using standards like ASTM to determine properties. Grease viscosity is indicated using NLGI grades while oil viscosity uses ISO viscosity grades. Tests measure viscosity,
Lubrication fundamentals
The document provides an overview of lubrication fundamentals including tribology, lubrication functions, lubrication films and regimes, base oils, additives, greases, lubricant failures, and oil analysis basics. It discusses topics such as how lubricants are formulated using base oils and additives, common lubricant types, mineral and synthetic base oil properties, grease consistency, grease thickeners, and ways that lubricants can fail through contamination, oxidation, thermal degradation, and additive depletion.
Lubrication Fundamentals: Lubricating Oil Basics
One of the most important things an operator can do for his machinery is to make sure it is properly lubricated. So what is a lubricant and how does it affect operations when used properly? In this webinar we will answer these questions and more by covering the fundamentals of lubrication. During this webinar we will discuss how a lubricant works to remove friction, the physical and chemical properties of the lubricant, and the many functions of a lubricant.
Lubrication and lubricants (1)
This document discusses lubricants used in chemistry. It covers the functions of lubricants in decreasing friction and absorbing heat. It describes different types of lubricants including oils, greases, and solid lubricants. It outlines the process for extracting lube oils from raw oil through steps like vacuum distillation, de-waxing, and hydrogen treatment. Key tests for lube oils are described like viscosity measurements and oxidation resistance tests. Factors for choosing lubricants are discussed like viscosity changes with temperature and resisting chemical reactions.
grease-overview-amp-application-presentation.pdf
This document provides an overview of greases, including their composition, manufacturing process, advantages, disadvantages, and applications. A grease consists of a thickening agent dispersed in a liquid lubricant. Common thickeners include metal soaps, such as lithium, calcium, and aluminum complexes. The manufacturing process involves mixing the thickener with base oils and additives. Milling the grease improves its consistency and stability. Greases are suitable for applications where oils cannot be contained and provide benefits such as excluding contaminants and lubricating intermittent machinery. However, greases also have disadvantages like reduced heat transfer compared to oils.
Mobil Lubricant Analysis
This presentation will explain the importance of used oil analysis. If you want to cut the cost, don't try to use cheap product but try to extend premium lubricant by monitoring with lubricant analysis.
Grease product knowledge
Greases are solid to semi-fluid products consisting of a fluid lubricant and a thickener. They typically contain 80-87% oil, 8-15% thickener, and 5% additives. Greases stay in place to seal and lubricate, unlike oils which can run away. Greases are used when intermittent lubrication is needed or operating conditions are extreme. Grease properties like penetration, drop point, and resistance to water washout are tested. Greases are formulated with base oils, thickeners like metal soaps, and performance additives. They are tested for properties like anti-wear protection and corrosion resistance. Proper grease storage and avoiding contamination are important.
Grease presentation
This document provides information about maintenance practices at Uranium Corporation of India Ltd (UCIL). It discusses how UCIL conducted a root cause analysis after equipment failures and found that improper greasing was often to blame due to lack of training. UCIL then implemented an educational program to train workers on lubrication and greasing. This included creating training materials, identifying personnel for training, and instructing them on lubrication basics, types of grease, and proper grease selection. The training aimed to improve maintenance practices and reduce equipment breakdowns at UCIL.
Principles of lubrication new
This document provides an overview of lubrication principles and practices. It discusses the types of lubricants including oils, greases, and synthetics. Key topics covered include viscosity, additives, lubrication methods, grease characteristics, storage, handling, and selecting the right lubricant. The document emphasizes selecting the right lubricant for the application, maintaining proper lubricant storage conditions, and using lubricants to improve productivity while reducing costs and equipment failure.
Grease Fundamentals and Analysis
Grease is a thickened lubricant that remains in contact with moving surfaces. It is formulated from a base oil thickened with a soap, clay, or polymer. Grease properties depend on the base oil viscosity and consistency grade determined by penetration testing. Additives provide oxidation resistance, extreme pressure properties, anti-wear performance, and other characteristics. Standard tests evaluate grease properties like dropping point, oil separation, load carrying capacity, and resistance to water and corrosion. Proper grease selection depends on application parameters like temperature, speed, and load.
Machinery Oil Analysis
Oil analysis involves sampling machine lubricants and analyzing them to monitor lubricant health, equipment health, and contamination levels. It can detect wear in components, coolant leakage, and filter effectiveness. Common tests analyze viscosity, water content, acidity, additives, and wear particles. Together these provide information on lubricant condition, equipment operation, and maintenance strategy effectiveness to optimize service intervals and avoid unexpected breakdowns.
Lubricant
The document presents information on lubricants including their definition, functions, classification, properties, and test methods. It defines lubricants as substances that reduce friction between sliding surfaces. Lubricants are classified as solid, semi-solid, or liquid. Key properties discussed include oiliness, volatility, emulsification, and thermal stability. Test methods covered include emulsification number, neutralization number, saponification value, and flash and fire points.
Grease basic knowledge_nk0906
The document discusses grease, including its composition, advantages, disadvantages, and applications. It describes that grease is a thickened liquid lubricant composed of 70-95% base oil, 10-20% thickener, and 5-10% additives. The document discusses various base oils, thickeners, and additives used in grease and how they influence properties. It also covers grease selection factors, compatibility, consumption calculation, testing, troubleshooting, and classification.
LUBRICATING OILS
This document discusses lubricating oils used in mechanical engineering. It begins by defining lubricating oils and their uses in reducing friction and wear between surfaces. It then discusses the key properties oils should have and different types including mineral oils derived from petroleum and vegetable/animal oils. The rest of the document discusses additives used in mineral oils, classification systems for oils, and commercial automotive lubricants and their properties.
Lubrication
This document provides an overview of lubrication. It defines lubrication as reducing wear between surfaces in contact by interposing a lubricant between them. There are three regimes of lubrication depending on the load: fluid film lubrication, hydrostatic lubrication, and hydrodynamic lubrication. The main types of lubrication are hydrodynamic lubrication, hydrostatic lubrication, boundary lubrication, and extreme pressure lubrication. Lubricants are typically composed of a base oil plus additives and perform functions like keeping parts apart and transferring heat. Common lubricants include oils, greases, and solid lubricants like graphite and molybdenum disulfide. The document discusses lubricant formulation, properties, types, and
5.lubrication
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.
Lubricants 101
Everything you wanted to know about Lubricants but were afraid to Ask!
Presented by Terry Reynolds from TR Market Management - www.trmarketman.com
Oil Analysis Report Interpretation
The oil analysis report is a vital tool for a smooth running operation. Going deeper than the report summaries and knowing how to analyze the oil analysis report can help prevent equipment breakdown and unnecessary equipment teardowns. During this educational webinar you will learn from analyst, Dwon Ruffin, his process for reviewing and analyzing oil analysis reports. Dwon will review some of the most common tests run on industrial equipment and teach you how to read test reports. He will also walk you through marginal and critical reports and teach you how to decipher various alarms. You will walk away with an improved knowledge of oil analysis report interpretation.
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.
Lubricants, Grease and Oil
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
Presentation on lubricants
This document provides an overview of lubricants presented by Md. Arman Hossain of SAJ Engineering & Trading Company. It defines lubricants as substances that reduce friction between surfaces. The presentation covers the functions of lubricants, properties, classifications, types (mineral-based, synthetic, semi-synthetic), brands and institutes. It provides details on mineral oils, additives, and limitations while emphasizing advantages of synthetic lubricants. Pertamina lubricants and their approvals from automobile and equipment manufacturers are highlighted. The presentation stresses the importance of using quality lubricants for engine protection and performance.
Basic Lubricat Knowledge
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.
Enabling Corporate Failure Metrics at Nexen Energy with ISO 14224
The document discusses Nexen Energy's implementation of ISO 14224 standards for asset reliability data collection and analysis using SAP software. It describes how Nexen redesigned its technical hierarchy to align with ISO 14224, defining clear equipment boundaries and relationships. This improved data quality and enabled aggregated reliability metrics at the equipment level. The redesign process and lessons learned are discussed. Standard methods like the Industry Standard Plant Maintenance (ISPM) approach are presented for simplifying and automating failure analysis to identify high-risk equipment and prioritize corrective actions.
Lubrication,Types & Stribeck Curve
This document discusses different types of lubrication used in mechanical systems. It describes boundary lubrication as metal-to-metal contact that occurs during startup. Hydrostatic lubrication uses an external pressure source to separate surfaces with a lubricant film. Hydrodynamic lubrication fully separates surfaces using hydraulic forces generated by fluid viscosity as surfaces move. Elastohydrodynamic lubrication involves rolling contact that elastically deforms surfaces to lubricate them. Mixed lubrication is a combination of boundary and hydrodynamic lubrication, where asperities still contact but surfaces are mostly separated. The Stribeck curve illustrates the relationship between friction and the lubrication regime from boundary to hydrodynamic.
Gear lubrication
(1) There are three main methods for gear lubrication: grease lubrication suitable for low speeds, splash (oil bath) lubrication for medium speeds, and forced oil circulation for high speeds.
(2) Grease lubrication applies grease directly but requires periodic reapplication. Splash lubrication risks insufficient lubrication from low oil levels or overheating from high levels. Forced circulation ensures lubricant reaches contact areas through spraying or misting.
(3) The purpose of gear lubrication is to reduce friction through lubricant film formation and limit temperature rises from rolling and sliding contact. Proper lubricant selection depends on operating conditions like speed and load.
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.
Basic Lubrication (Pelumasan) 23092022.pdf
Dokumen tersebut membahas tentang pelumasan yang mencakup tujuan pelumasan untuk mengurangi gesekan antar permukaan, jenis pelumas, dan manfaat program pelumasan yang tepat untuk menghemat biaya dan memperpanjang umur mesin."
GREASE MANDATORY MODUL_001XX-19-0000147 (1)-converted.pptx
Dokumen tersebut membahas tentang komponen dasar dan jenis-jenis grease serta karakteristiknya. Grease terdiri dari minyak dasar, aditif, dan pengental. Jenis pengental masing-masing memiliki karakteristik yang berbeda seperti ketahanan air, stabilitas mekanik, dan titik leleh. Dokumen juga menjelaskan aplikasi grease yang sesuai berdasarkan kondisi peralatan.
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Grease product knowledge
Greases are solid to semi-fluid products consisting of a fluid lubricant and a thickener. They typically contain 80-87% oil, 8-15% thickener, and 5% additives. Greases stay in place to seal and lubricate, unlike oils which can run away. Greases are used when intermittent lubrication is needed or operating conditions are extreme. Grease properties like penetration, drop point, and resistance to water washout are tested. Greases are formulated with base oils, thickeners like metal soaps, and performance additives. They are tested for properties like anti-wear protection and corrosion resistance. Proper grease storage and avoiding contamination are important.
Grease presentation
This document provides information about maintenance practices at Uranium Corporation of India Ltd (UCIL). It discusses how UCIL conducted a root cause analysis after equipment failures and found that improper greasing was often to blame due to lack of training. UCIL then implemented an educational program to train workers on lubrication and greasing. This included creating training materials, identifying personnel for training, and instructing them on lubrication basics, types of grease, and proper grease selection. The training aimed to improve maintenance practices and reduce equipment breakdowns at UCIL.
Principles of lubrication new
This document provides an overview of lubrication principles and practices. It discusses the types of lubricants including oils, greases, and synthetics. Key topics covered include viscosity, additives, lubrication methods, grease characteristics, storage, handling, and selecting the right lubricant. The document emphasizes selecting the right lubricant for the application, maintaining proper lubricant storage conditions, and using lubricants to improve productivity while reducing costs and equipment failure.
Grease Fundamentals and Analysis
Grease is a thickened lubricant that remains in contact with moving surfaces. It is formulated from a base oil thickened with a soap, clay, or polymer. Grease properties depend on the base oil viscosity and consistency grade determined by penetration testing. Additives provide oxidation resistance, extreme pressure properties, anti-wear performance, and other characteristics. Standard tests evaluate grease properties like dropping point, oil separation, load carrying capacity, and resistance to water and corrosion. Proper grease selection depends on application parameters like temperature, speed, and load.
Machinery Oil Analysis
Oil analysis involves sampling machine lubricants and analyzing them to monitor lubricant health, equipment health, and contamination levels. It can detect wear in components, coolant leakage, and filter effectiveness. Common tests analyze viscosity, water content, acidity, additives, and wear particles. Together these provide information on lubricant condition, equipment operation, and maintenance strategy effectiveness to optimize service intervals and avoid unexpected breakdowns.
Lubricant
The document presents information on lubricants including their definition, functions, classification, properties, and test methods. It defines lubricants as substances that reduce friction between sliding surfaces. Lubricants are classified as solid, semi-solid, or liquid. Key properties discussed include oiliness, volatility, emulsification, and thermal stability. Test methods covered include emulsification number, neutralization number, saponification value, and flash and fire points.
Grease basic knowledge_nk0906
The document discusses grease, including its composition, advantages, disadvantages, and applications. It describes that grease is a thickened liquid lubricant composed of 70-95% base oil, 10-20% thickener, and 5-10% additives. The document discusses various base oils, thickeners, and additives used in grease and how they influence properties. It also covers grease selection factors, compatibility, consumption calculation, testing, troubleshooting, and classification.
LUBRICATING OILS
This document discusses lubricating oils used in mechanical engineering. It begins by defining lubricating oils and their uses in reducing friction and wear between surfaces. It then discusses the key properties oils should have and different types including mineral oils derived from petroleum and vegetable/animal oils. The rest of the document discusses additives used in mineral oils, classification systems for oils, and commercial automotive lubricants and their properties.
Lubrication
This document provides an overview of lubrication. It defines lubrication as reducing wear between surfaces in contact by interposing a lubricant between them. There are three regimes of lubrication depending on the load: fluid film lubrication, hydrostatic lubrication, and hydrodynamic lubrication. The main types of lubrication are hydrodynamic lubrication, hydrostatic lubrication, boundary lubrication, and extreme pressure lubrication. Lubricants are typically composed of a base oil plus additives and perform functions like keeping parts apart and transferring heat. Common lubricants include oils, greases, and solid lubricants like graphite and molybdenum disulfide. The document discusses lubricant formulation, properties, types, and
5.lubrication
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.
Lubricants 101
Everything you wanted to know about Lubricants but were afraid to Ask!
Presented by Terry Reynolds from TR Market Management - www.trmarketman.com
Oil Analysis Report Interpretation
The oil analysis report is a vital tool for a smooth running operation. Going deeper than the report summaries and knowing how to analyze the oil analysis report can help prevent equipment breakdown and unnecessary equipment teardowns. During this educational webinar you will learn from analyst, Dwon Ruffin, his process for reviewing and analyzing oil analysis reports. Dwon will review some of the most common tests run on industrial equipment and teach you how to read test reports. He will also walk you through marginal and critical reports and teach you how to decipher various alarms. You will walk away with an improved knowledge of oil analysis report interpretation.
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.
Lubricants, Grease and Oil
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
Presentation on lubricants
This document provides an overview of lubricants presented by Md. Arman Hossain of SAJ Engineering & Trading Company. It defines lubricants as substances that reduce friction between surfaces. The presentation covers the functions of lubricants, properties, classifications, types (mineral-based, synthetic, semi-synthetic), brands and institutes. It provides details on mineral oils, additives, and limitations while emphasizing advantages of synthetic lubricants. Pertamina lubricants and their approvals from automobile and equipment manufacturers are highlighted. The presentation stresses the importance of using quality lubricants for engine protection and performance.
Basic Lubricat Knowledge
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.
Enabling Corporate Failure Metrics at Nexen Energy with ISO 14224
The document discusses Nexen Energy's implementation of ISO 14224 standards for asset reliability data collection and analysis using SAP software. It describes how Nexen redesigned its technical hierarchy to align with ISO 14224, defining clear equipment boundaries and relationships. This improved data quality and enabled aggregated reliability metrics at the equipment level. The redesign process and lessons learned are discussed. Standard methods like the Industry Standard Plant Maintenance (ISPM) approach are presented for simplifying and automating failure analysis to identify high-risk equipment and prioritize corrective actions.
Lubrication,Types & Stribeck Curve
This document discusses different types of lubrication used in mechanical systems. It describes boundary lubrication as metal-to-metal contact that occurs during startup. Hydrostatic lubrication uses an external pressure source to separate surfaces with a lubricant film. Hydrodynamic lubrication fully separates surfaces using hydraulic forces generated by fluid viscosity as surfaces move. Elastohydrodynamic lubrication involves rolling contact that elastically deforms surfaces to lubricate them. Mixed lubrication is a combination of boundary and hydrodynamic lubrication, where asperities still contact but surfaces are mostly separated. The Stribeck curve illustrates the relationship between friction and the lubrication regime from boundary to hydrodynamic.
Gear lubrication
(1) There are three main methods for gear lubrication: grease lubrication suitable for low speeds, splash (oil bath) lubrication for medium speeds, and forced oil circulation for high speeds.
(2) Grease lubrication applies grease directly but requires periodic reapplication. Splash lubrication risks insufficient lubrication from low oil levels or overheating from high levels. Forced circulation ensures lubricant reaches contact areas through spraying or misting.
(3) The purpose of gear lubrication is to reduce friction through lubricant film formation and limit temperature rises from rolling and sliding contact. Proper lubricant selection depends on operating conditions like speed and load.
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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Enabling Corporate Failure Metrics at Nexen Energy with ISO 14224
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Basic Lubrications
- 1. Basic Lubrications Billy Purnama Technical Support PT Petrolube Cakra Persada
- 2. Fundamental Tribology ( Leonardo Da vinci, 1966 ) : ilmu pelumasan ; suatu studi mengenai : • Friction : gaya yang menahan gerakan sliding atau rolling satu benda terhadap benda lainnya • Wear : hilangnya materi dari permukaan benda padat sebagai akibat dari gerakan mekanik • Lubrication : tindakan menempatkan pelumas antara permukaan yang saling bergeser untuk mengurangi keausan dan friksi.
- 3. Lubricants
- 4. Komposisi Base Oils Additives+ Lubricants • Mineral oils • Synthetic oils (PAO, PAG …) One or several packages if requested
- 5. BASE OIL : Mineral Hydrocra cked Synthetic ADDITIVE : Detergent/ Dispersant Anti Wear Anti Oxidant VI Rust/ Corrosion Inhibitor Anti Foam Friction Modifier Pour Point Depressants
- 6. Base Oil
- 7. Additive Function Detergent/ Dispersant merupakan 1 kombinasi, untuk membersihkan, mengambangkan partikel kotoran, sludge, soot, deposit dan menetralkan asam (poor quality fuel) Anti Wear Proteksi terhadap part engine dari kontak metal to metal Anti Oxidant Memperlambat terjadinya proses oksidasi pada pelumas Viscosity Index Menaikan nilai Viscosity Index (perubahan kekentalan akibat perubahan temperature) Rust/corrosion Inhibitors Menghilangkan/mengurangi rust dan korosi Anti foam Mencegah foaming dan mempercepat pelepasan udara yang terperangkap Friction Modifier Mengurangi friksi Pour Point Depressants Menurunkan temperatur titik tuang Additive
- 8. Sifat – Sifat Oli 1. Start Pumping : Engine oil harus mudah dipompakan pada temperatur rendah, sehingga tidak terjadi delay penyuplaian oli pada starting engine. 2. Stability of Viscosity : Engine oil harus mempunyai stabilitas yang tinggi mengenai viskositas terhadap perubahan temperatur. 3. Corrosion Inhibitor : Engine oil harus mempunyai sifat dapat mencegah atau menghambat terjadinya proses korosi 4. Defoaming Property : Engine oil harus mempunyai sifat mencegah terjadinya gelembung busa ( bubble ) pada oil. 5. Cleaning & Dispersing properity: Engine oil harus mempunyai sifat dapat membersihkan sisa karbon dan kotoran lainnya, dan menguraikan kotoran itu
- 9. Performance Engine Oil Viscosity Carbon Residue Pour & Cloud Point Flash Point Total Base Number
- 10. Kondisi penyebab penurunan mutu oli 1. Temperatur coolant terlalu rendah Temperatur Coolant yang rendah mempengaruhi pembentukan asam yang korosif di dalam engine. Hal ini menyebabkan deposit, pembentukan lumpur, pernis dan karbon, yang meningkatkan blow-by,pengerusan lubang liner dan penghambatan ring. 2. Kelembaban yang tinggi Dalam aplikasi khusus, dimana kelembaban sekitar 85% atau lebih dari kondisi operasi, gas asam akan terbentuk karena kandungan air di udara yang menyebabkan korosi. 3. Bahan bakar tidak sesuai Bahan bakar yang tidak memenuhi spesifikasi engine akan menyebabkan proses pembakaran tidak sempurna yang menyebabkan pembentukan deposit. 4. Perawatan kurang baik Penggunaan oli dan filter yang terlalu lama serta perlakuan perawatan yang kurang menyebabkan deposit.
- 11. Classification
- 12. Terima kasih