Information on Industrial Abrasives

by Marcus Ronan

Industrial abrasives are usually made from hard minerals which can then be utilized for shaping or completing a piece of work by rubbing it. This actually causes part of the surface of the item to be worn away which results in a smooth and reflective surface. However, sometimes the surface may end up slightly more rough and this will result in a matte, satin or beaded finish to the work.

These abrasives are extremely commonplace and are used in a variety of different industries. Because of this the chemical and physical composition of the abrasive being used varies greatly from one industry to the next. Along with abrasives being used to polish the surface of an item they are also used for buffing, grinding, honing, drilling, sharpening, sanding and cutting.

As we mentioned before the majority of industrial abrasives being used today are made from hard minerals and has achieved a Mohs rating of seven or more. But as well as abrasives being made from minerals there are some which are made from synthetic stones as well.

These synthetic stones often have both the physical and chemical characteristics that you would find in minerals which occur naturally. However, they are not able to be classified as minerals as they have not actually been constructed naturally.

There are numerous types of minerals and synthetic stones being used to make abrasive materials and the most commonly used of all is diamonds. These are not only some that is formed naturally but can also be synthetically produced as well. Those that are made naturally and which are then mined for are often constructed from corundum. Whilst those that have been synthetically produced will be constructed from bauxite.

The diamond is one of the hardest substances known to man and yet there are plenty of minerals which are far softer than this and which can also are used for abrasive materials. One of the softest minerals being used today is calcium carbonate and this is frequently used as a polishing agent in toothpastes. It is this mineral in the toothpaste which will actually help to improve the whiteness of a person’s teeth overtime.

But just how effective the industrial abrasive is, is dependent on a number of different factors. One of these is the actual sizes of each grain or grit that makes up the abrasive material. The sizes from ones that are only 40 micrometers in size to those which are 2mm in size and these are the largest. But in order to get the right size pieces of grit for use in abrasive materials the mineral or synthetic stone needs to be crushed first. As it is crushed each piece of grit has rough edges to them that will end in points. This actually reduces the amount of surface which the abrasive comes into contact with but it does allow the user to localize the amount of pressure that they place on an item they are using the abrasive on.

When industrial abrasives are being used the force which is applied to each of the grains that make it up will cause part of the item on which they are rubbing to break away. But not only does the surface of the item begin to wear away so does the surface of the abrasive and this means that after a period of time the actual abrasive will need to be replaced.

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