Definition of abrasives in English English dictionary
Materials for grinding, polishing, blasting, either in loose form or bonded to form wheels, bricks, or files, or applied to paper and cloth by glue or resin Natural abrasives include emery, corundum, garnet, sand, flint, etc Metallic shot and grit are also used as abrasives in cleaning castings
Natural and synthetic materials in fine granular form incorporated in buffing compounds and attached to cloth or paper Abrasives are generally used in grades of coarse to fine and may be identified by a numerical system (paper- and cloth-backed abrasives) For example, number 400 is relatively fine and number 80 coarse Not all abrasives are identified by number
Gritty additives used to increase scouring ability May scratch some surfaces in use
Substances rubbed on wood to smooth the surface Flint, garnet, aluminum oxide, and silicon carbide are common abrasives
Sharp, hard materials used to wear away the surface of softer, less resistant materials. Abrasives are indispensable to the manufacture of the highly precise components and ultrasmooth surfaces required in the manufacture of automobiles, airplanes and space vehicles, mechanical and electrical appliances, and machine tools. Abrasives may be natural (e.g., diamond, corundum, emery) or synthetic (e.g., silicon carbide or Carborundum, synthetic diamond, alumina a synthetic form of corundum). They range from the relatively soft particles used in household cleansers and jeweler's polish to diamonds
Material such as sand, crushed chilled cast iron, crushed steel grit, aluminum oxide, silicon carbide, flint, garnet, of crushed slag used for cleaning or surface roughening
A finely divided, hard, refractory material ranging from 6 to 10 on the Mohs scale, used to reduce, smooth, clean or polish the surfaces of other less hard substances, such as glass, plastic, stone, wood etc Natural abrasive materials include diamond dust, garnet, sand (silica), corundum (Al oxide, emery), pumice, rouge (Fe oxide), & feldspar; the more important synthetic types are SiC, B carbide, Ce oxide & fused alumina Abrasives in powder form are used in several ways: (1) Applied directly to the surface to be treated by mechanical pressure or compressed-air blast, as in cleaning building stone(2) Affixed to a paper or textile backing after the particles have been coated with an adhesive(3) Mixed with a bonding agent such as Na silicate or clay, the particles being compressed into a wheel rotated by a power-driven shaft
 Any of a number of hard materials, such as aluminum oxide, silicon carbide, and diamond, that are powdered and carefully graded according to particle size, and used to shape and/or finish optical elements, including the endfaces of optical fibers and connectors  Note: For finishing the endfaces of optical fiber connectors, abrasive particles are adhered to a substrate of plastic film, in a fashion after that of sandpaper  The film is in turn supported by a hard, flat plate  The connector is supported by a fixture that holds it securely in the proper position for finishing  The grinding motion may be performed manually or by a machine  [After FAA]
A coarse material, such as wet or dry sandpaper that is used to rub against the surface to be altered in order to 1 )make it smooth 2 ) make it rough 3 ) remove the surface material
Any substance used for grinding, cutting, polishing, or sand blasting and sand carving The most popular being different textures of silicon carbide and aluminum oxide Such textures are known as GRITS
Any of a number of hard materials, such as aluminum oxide, silicon carbide, and diamond, that are powdered and carefully graded according to particle size, and used to shape and/or finish optical elements, including the endfaces of optical fibers and connectors Note: For finishing the endfaces of optical fiber connectors, abrasive particles are adhered to a substrate of plastic film, in a fashion after that of sandpaper The film is in turn supported by a hard, flat plate The connector is supported by a fixture that holds it securely in the proper position for finishing The grinding motion may be performed manually or by a machine [After FAA]
Material used for grinding, sanding, polishing or the wearing away of another material Aluminum oxide, garnet and silicon-based compounds are commonly used as abrasives for sanding and smoothing wood
A material used to sandcarve into a substrate Popular abrasives are Aluminum Oxide and Silicon Carbide For standard sandcarving 150 grit is recommended For photo etching 220 grit is recommended
An abrasive substance is rough and can be used to clean hard surfaces. a new all-purpose, non-abrasive cleaner. a rough powder or substance that you use for cleaning something or making it smooth