Sand Blasting Services

Sand Blasting is the operation of by force propelling a stream of abrasive material against a surface under high compression to smooth a rough surface, roughen a smooth surface, shape a surface, or remove surface contaminants. A pressurized fluid, typically air is used to boost the blast material often call media .There are many types of media from walnut shells for soft exteriors to Garnet which is very wearing mineral. The sandblasting machine can be used effectively on steel, iron, copper etc

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Detailed Description for Sand Blasting Services

 

Sandblasting is primarily used for two somewhat different applications. The first of these is to clean a surface of anything that may be clinging to it. The second is to either etch or carve designs or words into glass or a similar material.

 

Sandblasting is an effective cleaning process for hard surfaces with the use of high pressure air. The sandblasting method can be used for smoothing, shaping and cleaning hard surfaces, debarring, blending and stress relieving of any part that is hard. This process also removes slag, rust, and imperfections in steel as a preparation for various coatings. The effect of sandblasting is similar to that of using sandpaper, but provides a more even finish.

 

The sandblasting process can be used effectively on steel, iron, copper, brass, aluminum and glass. Sandblasting can be used to clean up fabricated parts, structural steel, castings, pipes (inside and out) pipe fittings, auto body parts and machine parts. This process can also be used on new materials to remove rust, paints, stains and glues. Sand blasting works for automotive restoration. It helps avoid a lot of hard labor, especially when working with deeply convoluted surfaces like a rusty wheel rim.

 

Sandblasting Methods

The primary task in sandblasting is creating a two-dimensional design or pattern such as stars, hearts or name initials. A piece of vinyl sheet or rubber is placed on the material to be sandblasted. The vinyl sheet also referred to as the "sandblast resist," is put on the other item to "resist" the effects of the procedures abrasive technique. This method transfers the pattern to the resist medium with either the use of carbon paper, pencil, or ink, through a pouncing method. Some portions of the pattern are cut and removed so that the uncovered areas will be subject to the abrasive steaming of the sandblaster. This method, wherein only partial areas of the pattern's image are etched, is called positive etched. On the other hand, an alternate etch or negative etch is done by keeping the resist on the design pattern and disregarding its background portion.

Other techniques involve the use of a technology that employs a UV-sensitive film for glass carving. Resists can be made by using its photographic techniques. The procedure involves creating line art, producing a film image of the pattern or art, exposing resist material to UV light, washing the material to make openings where the abrasives will pass, placing the resist on glass and finally, blasting it.

The actual blasting process involves pressurizing the sandblaster's pressure pot to blast the material (with 2 to 6 inches distance away from the material). A painting or brushing motion is used to create an etch on a glass.

After the blasting, etching and carving are done, the material is carefully washed with water. It must be handled with care to avoid scratches.

Equipment

Abrasive media or material must be used to sandblast. The most common pieces of equipment used include sand, walnut shells, aluminium oxide or plastic pellets. The actual sandblaster will most likely have a compressor, media screen, pressure pot, a nozzle and a dust collector.

 

 


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