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Functions of Lubricants

5/11/2012 6:26:24 PM | by Anonymous

LUBRICANTS

You might have used oil to ease the creaking sound the door makes. In this case, the oil served the purpose of a lubricant. A lubricant is a substance, solid or liquid, that can be used to ease the friction between two moving surfaces that are in contact. Lubricity is the property of a lubricant’s ability to reduce friction. Reducing friction improves the frequency of a device or machine and it also reduces wear. Lubricants are used in almost every type of machinery and also in sectors such as agriculture, transport, construction and some times even at home. They are usually oil based and largely used as motor oil to protect the internal combustion engines in vehicles.

 

How lubricants work to keep moving parts apart is by forming a thin layer between them. This reduces friction, noise, vibrations and heat generation. A great advantage of using lubricants can be that they are able to remove the debris that gets stuck in machines such as automotive engines. These lubricants are able to easily filter the debris out of the system.

 

Some forms of solid or non liquid lubricants are grease, powders and air cushions. Tungsten disulfide can replace the liquid lubricants as they are still able to function in high temperature, unlike liquid or oil-based lubricants. Another method to reduce friction can be by using ball bearings. However, the ball bearings would themselves require some form of lubrication applied to function. Despite being used for industrial purposes, lubricants can be used in household appliances and devices such as frying pans and bicycles.

 

Lubricants are even used in biomedical science. A person who has artificial joints has to use lubricants to ensure that the joints function properly. This substance even exists naturally inside our bodies in between joints which allow us to be able to move. Lubricants, natural or man-made, are a very key component in our society today.

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