What are the classification of lubricants?

Lubricants are classified in several ways; these could be liquid, semisolid (greases), and solids such as graphite, molybdenum disulfide, boron nitride, tungsten disulfide, and polytetrafluoroethylene.

What are the 3 types of lubricants?

There are three main types of lubricants: oil-based, water-based, and silicone-based.

What are the examples of liquid lubricant?

Based on their origin, we classify as vegetable oil (i.e. castor and rapeseed); animal oil (fish oil); olive oil, mineral oil (the most popular and most economic category of liquid lubricant); finally, comes the synthetic lubricant.

What are lubricants give 1 example?

A lubricant is a substance which introduced to reduce friction between surfaces in mutual contact, which ultimately reduces the heat generated when the surfaces move. For example – motor oil, friction modifier, friction additive, gel, silicons, flourocarbons, ect.

What are the 5 types of lubricants?

Here given are the common lubricants and their uses:
  • Greases. Greases are composed by utilizing oil (typically mineral oil) and combining it with thickeners (such as lithium-based soaps). …
  • Oils. These thin liquids are composed of long polymer chains with some extra additives. …
  • Penetrating Lubricants. …
  • Dry Lubricants.

What are lubricants and its types?

Lubricants are classified into four types: oil, grease, penetrating lubricants, and dry lubricants. The two most common lubricants you’ll encounter on a daily basis are oil and grease, but your facility will still use dry and penetrating lubricants.

What are Class 8 lubricants?

A substance that is introduced between two surfaces in contact, to reduce friction, is called a lubricant. Fluid friction can be minimized by giving suitable shapes to the objects moving in the fluids.

What are lubricants give examples of liquid and solid lubricants?

An example of the solid lubricants is Graphite. The liquid lubricants are composed of different kinds of base oil and some additives. An example of the liquid lubricants is mineral oil. The solid lubricants are inserted between the bearing surfaces.

What are lubricants give three examples?

Common examples of internal lubricants include fatty alcohols, esters (low esterification), and EVA wax. External lubricants provide metal release and help reduce process temperature. Common examples of external lubricants include PE waxes, paraffin, metal soaps, esters (high esterification), amides, and fatty acids.

What are lubricants in pharmacy?

Lubricants reduce the friction between the tablet and the die metal surface, which reduces the ejection force and helps to ensure that the tablet is cleanly ejected and without cracking or breakage.

What are the most common uses of lubricants?

Lubricants are substances typically used to reduce friction between parts in contact. Depending on the type, lubricants also perform various other functions such as heat regulation, power transmission, sealing against dust or dirt, as well as reducing oxidation and preventing corrosion.

What lubricant means?

: a substance (such as grease) capable of reducing friction, heat, and wear when introduced as a film between solid surfaces. : something that lessens or prevents friction or difficulty.

What are the characteristics of good lubricant?

A good lubricant generally possesses the following characteristics:
  • A high boiling point and low freezing point (in order to stay liquid within a wide range of temperature)
  • A high viscosity index.
  • Thermal stability.
  • Hydraulic stability.
  • Demulsibility.
  • Corrosion prevention.
  • A high resistance to oxidation.

What is lubricant agent?

A lubricant is an additive substance that is included during direct compression to reduce the interparticle friction and the friction between the solid particles and surfaces of the die and punches, thus facilitating the formation of the tablet and its removal from the die.

Why is lubricant used in medicine?

It ensures that products are consistently produced and controlled according to quality standards and aims to minimise the risks involved in pharmaceutical production that cannot be eliminated by testing the final product.

What are the applications of lubricants?

Applications of Lubricants
  • As antiwear, antioxidants, and antifoaming agents.
  • As demulsifying and emulsifying agents.
  • As rust and corrosion inhibitors.
  • In machinery as engine oils, compressor oils, gear oils, and piston oils.
  • As hydraulic, brake, and gear box fluids.
  • Used in the soap and paint industries.

What is viscosity in lubricants?

The viscosity of a lubricant is actually its resistance to flow and shear. It is affected by several, such as contamination with water, particles or other lubricants, but also oil ageing can affect viscosity. The two common types of viscosity are kinematic viscosity and dynamic viscosity.