Aluminium Silicate Abrasive
Aluminium silicate is also known as also known as coal slag is a dispensable abrasive which is a by-product of coal fired electric power generation plants. Aluminum silicate generates less dust than copper slag and is mainly used in open blasting shot and sand operations is done by sand blasting machine and shot blasting machine in the oil- and shipyard industry. Aluminum silicate is also called aluminum silicate might be a nom de plume applied to substance intensifies that are gotten from aluminum oxide(Al2O3) and silica (SiO2) which can be anhydrous or hydrated, normally happening as minerals or synthetic. This makes out aluminum silicate(Al2SiO5) from Al2O3 and SiO2. The quest for white fillers that can supplant and rival titanium dioxide has favored the amorphous aluminum silicates.
Aluminum and sodium silicate is a white-colored amorphous strong, acquired by the response of synthetic precipitation between sodium silicate and an aluminum salt in a watery medium. It is a filler with a wide range of utilizations, and it is used as an unrefined substance in sectors like the manufacture of paints, printing inks, the rubber or the paper sector.
Usage of aluminium silicate
Aluminum silicate (Al2SiO5) is moreover alluded to as kaolin, or hydrated aluminum silicate when in powder form. Aluminum silicate is a mixture of alumina, silica, and oxygen. Kaolin is often used as a demulcent and adsorbent in the pharmaceutical industry. It is used in color lakes (insoluble dyes).
Advantages of aluminum silicate
1.The improvement of the optical properties: a more serious level of splendor and mistiness.
2. Cost saving in the paint.
3. An improvement of the rheological behavior of the paint on account of its more noteworthy security during storage, on managing the pH, keeping a steady viscosity and going about as an enemy of sedimenting specialist.
4. An improvement of the properties of the paint applied on giving more noteworthy resistance to wash and friction and less tendency to fouling.
Aluminium slicate the chemical composition is
Silicon di oxide is 42-58%, Aluminium oxide 23-42% and Iron Oxide 3-15% , Calcium Oxide 2-8.5% and Potassium oxide 0.5 -4.6% . The chemical percentage as given in the above list as prcentage wise in the aluminium silcate.
Aluminium slicate the Physical properties is
Grain density is 2.4 to 2.6 kg/dm cube, bulk density 1.05-1.4 KG/dm cube and the hardness is minnium 6 mohs scale.
Sizes are available in aluminium silicate are
0.2 mm -0.5 mm , 0.2 mm-1.0 mm, 0.2 mm- 1.4 mm, 0.2mm-2.0 mm , 0.5 mm- 1.4mm, 0.5 mm-2.0 mm, 1.0 mm-2.0 mm and 2.0 mm- 2.8 mm etc.
Application of Aluminium silicate :
The usage of aluminium silicate are for cleaning, strengthening, shot peening, shot blasting, pre-treatment, descaling, removal of dust, removal paint, loose particles sand and its mainly used for removing of dust particles by portable blasting machine, wheel blasting machine, water jet cutting machine, all the suction type and pressure type machine the silicon carbide abrasive media is used. it can recycle many times for sand blasting. Mostly the usage of aluminium silicate is to make the paint or rubber.
The abrasive media which is used in blasting is glass beads and copper slag , aluminum oxide , garnet, Quartz Sand etc.
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