Sandblasting also known as abrasive blasting is the process of propelling high pressure streams of abrasive material against surfaces. This process is done to achieve one or more of the four purposes. The main applications are smoothening rough surfaces, roughening smooth surfaces, removing surface contaminants, and shaping surfaces. The use of the method is determined by the amount of pressure in the abrasive. For elegantly done sandblasting Los Angeles should be the first place to visit.
There are two main mechanisms through which the abrasive is propelled. The first method involves use of pressurized fluid, which can be air or water. The second mechanism involves the use of a centrifugal wheel to push the abrasive media. The first application of this process was in 1870. It was also patented the same year by Benjamin Chew Tilghman. At the time of patenting, sand was the main abrasive media in use, but that has changed since.
Increased applications of sandblasting made it possible for variations to be introduced. Currently there are several types in use for different purposes. The major types are, wet abrasive, bead, wheel, dry ice, automated, bristle, hydro, and micro-abrasive blasting. Some of the methods are named according to the nature of abrasive media they use. Each type of blasting is uniquely suited for a specific application.
In wet abrasive sandblasting, water or other liquids are added into the abrasives before they are used. Normally fine-textured media is used. Material of media used can be anything including stone, wood, steel, plastic, and glass. Most surface contaminants are effectively eliminated using this method. Grease, radioactive material, oil, graffiti, dust, old paint, mold, and asbestos are among contaminants that can be removed well. Cleaning agents and water added in the process is part of the reason why the method is very effective.
Wet abrasive blasting offers many advantages that cannot be found in dry media blasting. First, it can be done using any of the many device formats available. The types of device formats available include total loss portable units, walk-in booths, hand cabinets, and automated production machinery. The process can also be done in the same time frame as conventional dry sand blasting.
Main benefit of using wet blasting is that surfaces remain intact after the process because they are protected. A lubricating cushion is created between the substrate and abrasive by the fluid. Therefore, the impact of the propulsion is reduced a lot. Additionally, the level of media breakdown is low and foreign materials do not get impregnated into the surface.
When dry media processing is used, dust particles cling onto surfaces due to static forces. This is never observed in wet blasting because the liquid discharges surfaces of all static forces. Different types of media can also be used in the same equipment without causing contamination.
The levels of cleanliness achieved through use of wet materials makes the process to be more preferred for use in surface preparation. Surfaces can be prepared for bonding or coating operation using blasting. The resultant surfaces are normally very clean and improve the strength of the bond formed.
There are two main mechanisms through which the abrasive is propelled. The first method involves use of pressurized fluid, which can be air or water. The second mechanism involves the use of a centrifugal wheel to push the abrasive media. The first application of this process was in 1870. It was also patented the same year by Benjamin Chew Tilghman. At the time of patenting, sand was the main abrasive media in use, but that has changed since.
Increased applications of sandblasting made it possible for variations to be introduced. Currently there are several types in use for different purposes. The major types are, wet abrasive, bead, wheel, dry ice, automated, bristle, hydro, and micro-abrasive blasting. Some of the methods are named according to the nature of abrasive media they use. Each type of blasting is uniquely suited for a specific application.
In wet abrasive sandblasting, water or other liquids are added into the abrasives before they are used. Normally fine-textured media is used. Material of media used can be anything including stone, wood, steel, plastic, and glass. Most surface contaminants are effectively eliminated using this method. Grease, radioactive material, oil, graffiti, dust, old paint, mold, and asbestos are among contaminants that can be removed well. Cleaning agents and water added in the process is part of the reason why the method is very effective.
Wet abrasive blasting offers many advantages that cannot be found in dry media blasting. First, it can be done using any of the many device formats available. The types of device formats available include total loss portable units, walk-in booths, hand cabinets, and automated production machinery. The process can also be done in the same time frame as conventional dry sand blasting.
Main benefit of using wet blasting is that surfaces remain intact after the process because they are protected. A lubricating cushion is created between the substrate and abrasive by the fluid. Therefore, the impact of the propulsion is reduced a lot. Additionally, the level of media breakdown is low and foreign materials do not get impregnated into the surface.
When dry media processing is used, dust particles cling onto surfaces due to static forces. This is never observed in wet blasting because the liquid discharges surfaces of all static forces. Different types of media can also be used in the same equipment without causing contamination.
The levels of cleanliness achieved through use of wet materials makes the process to be more preferred for use in surface preparation. Surfaces can be prepared for bonding or coating operation using blasting. The resultant surfaces are normally very clean and improve the strength of the bond formed.
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