Thursday, April 25, 2013

The Meaning Of Abrasive Blasting

By Cherry Mercer


Abrasive blasting is a procedure that involves the use of compressed air and abrasive materials for modifying a surface. The operation can be of many types: bead, wheel, wet, automated, hydro, micro, dry ice and bristle. Every operation is performed using special equipment in an enclosed environment meant only for this purpose. There are common applications, such as engravings for monuments and buildings, cleaning boat hulls, etc. Some safety measures must be respected.

If a material has contaminant substances on it, its surface can be cleaned and shaped. When steel and plastic have to be wiped, wet procedures can be the right solution. A dust surface could be taken down with a combination of hot water and soap, which also can degrease everything. Because water is used like a lubricant for two materials, individuals could avoid much damage. Through bead operations, glass is used and the increased pressure can take calcium out of pool tiles. Car paint and fungus can also be wiped.

The use of centrifugal forces in wheel operations could eliminate various types of materials. Liquids, air, or gas are not used at all, in many cases. Wheel blasting allows materials like steel shot, cut wire and grit to be recycled. A popular technique is hydro-blasting, as it uses water and only one individual is needed for performing it.

With hydro-blasting, chemicals and paint could be eliminated using high pressure and water, with no effects on the main surface. Water can get into areas that cannot be cleaned with other methods, as they may not be accessible. People can use centrifugal forces for external and internal areas.

For micro-abrasive procedures, the use of small nozzles is what makes the difference. The particles have a size of ten to one hundred and fifty micrometers. High pressure is used for the nozzles as well. An automatic operation is the one of automated blasting. In general, the procedure may be part of a bigger one that has more techniques, such as coating and preparation. The mechanical pieces have to be separated from the chamber, as this will not facilitate dust fouling.

Dry ice procedures use air and dry ice for cleaning purposes. The original material is cleaned with the aid of a huge mass and high pressure. Bristle operations are different than other procedures, because a separate medium is not needed. The surface is wiped using a rotary tool that is similar to a brush, made from carbon steel wire bristles. The brush creates craters, which can dissipate the unwanted materials.

Portable equipments are usually made of an air compressor that is diesel powered. A cabinet is an enclosed system, is which people can perform blasts and recycle the resulted materials. Some portable equipments and cabinets are specifically meant for the use of water and other liquids. Rooms are similar systems, but they are larger.

If people need to eliminate materials form a surface, they can use abrasive blasting techniques. The methods can have their benefits. For example, just the coverage is removed and the main surface is maintained in perfect condition. There is dry blasting, but also wet methods and each procedure can be completed in specific environments.




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