Скачать или смотреть Lubricants Purpose of Lubricant I Properties of Lubricant I Grade of Lubricant I Lubricant

Lubricants | Purpose of Lubricant I Properties of Lubricant I Grade of Lubricant I Classification of Lubricant I Lubricant Important Functions And Classification | Lubrication | Lubricant Types and Properties I What are the most important properties for a lubricating oil I Lubricant | Classification of Lubricants | Grease |Properties of Lubricants | Viscosity | Viscosity index I Solid Lubricants I Flash point | Fire Point | Cloud point | Pour point

Dear friends,
In this video, we will discuss about “Lubricant”. Following are the topic:
f. What is lubricant and its purpose?
g. What are the Classification of Lubricants?
h. What are the quality of lubricant?
i. What are the chemical properties of lubricant?
j. What are different grade of lubricant?
Let me start presentation.
d. What is lubricant?
Lubricants are substances used to reduce friction between two surfaces in contact, thus minimizing wear and tear and allowing smooth movement. They are commonly employed in various industries and applications, ranging from machinery and automotive engines to household items and personal care products.
The primary purpose of lubricants is to create a thin, protective layer between the moving parts to reduce the force of friction and prevent direct metal-to-metal contact. By doing so, they help to:
1. Reduce wear:
2. Decrease heat:
3. Improve efficiency:
4. Prevent corrosion:
Lubricants come in various forms, including oils, greases, and solid lubricants, and they are formulated to meet the specific requirements of different applications. The selection of the appropriate lubricant depends on factors such as temperature, pressure, load, speed, and the materials involved in the contact.

e. What are the Classification of Lubricants?
Lubricants can be classified based on various factors, including their physical state, composition, application, and use. Here are some common classification methods for lubricants:
1. Classification based on Physical State:
a. Liquid Lubricants:
b. Solid Lubricants:
c. Semi-Solid Lubricants (Greases):
2. Classification based on Composition:
a. Mineral-based Lubricants:
b. Synthetic Lubricants:
c. Bio-based Lubricants:
3. Classification based on Application:
a. Automotive Lubricants:
b. Industrial Lubricants:
c. Marine Lubricants:
d. Aviation Lubricants:
e. Food-Grade Lubricants:
4. Classification based on Use:
a. General Purpose Lubricants:
b. Extreme-Pressure (EP) Lubricants:
c. High-Temperature Lubricants:
d. Low-Temperature Lubricants:

f. What are the quality of lubricant?
The quality of a lubricant is crucial to ensure optimal performance and protection of the machinery or equipment it serves. Several key parameters determine the quality of a lubricant:
12. Viscosity:
13. Oxidation resistance:
14. Thermal Stability:

15. Load-Carrying Capacity:
16. Anti-wear properties:
17. Corrosion Protection:

18. Foam Resistance:
19. Water separation:
20. Filterability:
21. Compatibility:
22. Environmental factors:
D. What are the chemical properties of lubricant?
Chemical properties of lubricants refer to their characteristics and behavior at a molecular level, which can significantly influence their performance and effectiveness. Some important chemical properties of lubricants include:
15. Chemical Composition:
16. Viscosity Index (VI):
17. Additives:
18. Oxidation Stability:
19. Hydrolytic Stability:
20. Demulsibility:
21. Volatility:
22. Flash Point:
23. Fire Point:
24. Cloud Point:
25. Pour Point:
26. Acid and Base Numbers:
27. Compatibility:
28. Biodegradability:
E. What are different grade of lubricant?
1 Society of Automotive Engineers (SAE) viscosity grades:
2. International Organization for Standardization (ISO) viscosity grades:
3. Industrial Lubricant grades:
4. Food-Grade Lubricants:
5. Aerospace Lubricant grades: