sandblast


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sandblast,

stream of sand or other abrasive particles driven by a jet of compressed aircompressed air,
air whose volume has been decreased by the application of pressure. Air is compressed by various devices, including the simple hand pump and the reciprocating, rotary, centrifugal, and axial-flow compressors.
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 or water or by centrifugal force against a surface to clean or abrade it. When centrifugal force is used, the abrasives are whirled in a rapidly rotating device before being directed against the surface. Powdered quartz, emery, chilled iron globules, and other hard granular substances are used as the abrasive material. The sandblast is used for cleaning castings in foundries; for preparing metal surfaces for painting, enameling, and galvanizing; and for cleaning the stonework of buildings. Frosted designs are worked on glass by placing a stencil or suitable pattern over the surface so that the blast affects only the uncovered parts.

sandblast

To use sand, propelled by an air blast, on metal, masonry, concrete, etc., to remove dirt, rust, or paint, or to decorate the surface with a rough texture.

sandblast

a jet of sand or grit blown from a nozzle under air, water, or steam pressure
References in periodicals archive ?
Under a basic package, New Image tears down old mixers to rolling chassis; installs new wiring harnesses plus air, hydraulic and water lines; sandblasts and paints cab, barrel, hood and fenders; rebuilds engines and major components or replaces with remanufactured Cummins or Caterpillar power; and, performs complete cab interior overhaul.
Shear bond strength of sandblasted group was higher than the diamond roughened group.
In the present study, we firstly employed hybrid technology of sandblast, acid etching, and hydrothermal (HT) to form the micro-nanopermeable surface of Ti and then performed surface characteristic evaluation by using SEM, surface profiler, and contact angle meter, followed by osteogenic differentiation evaluation by using MC3T3-E1 osteoblast cell line proliferation, adhesion, spreading, and differentiation model.
Armbrust DV (1974) Physiological response to wind and sandblast damaged winter wheat plants.
Because the aircraft's front windows looked as if they'd been sandblasted, the flight crew could see what lay ahead only by leaning near the cabin walls and peering forward through the cockpit's side windows.
'The vehicles with the trackers installed can be recovered in minutes if the device is not removed or jammed while the vehicles which have their particulars sandblasted on their screens are less prone to theft or snatch and cannot be sold in the market easily.
To evaluate mechanical surface pretreatment through sandblasting, the specimens were divided into two groups: the AL group, which was sandblasted with 50 [micro]m [Al.sub.2][O.sub.3] (Blasting Medium for crowns and bridges, LOT#444262, Dentaurum, Germany) and the CO group, which was treated with [Al.sub.2][O.sub.3] coated with 30 [micro]m Si[O.sub.2] (CoJet Sand, 3M ESPE, St.
Average roughness of stainless steel plate is [R.sub.a]=1,15 [micro]m (Rz=2,04 [micro]m), while sandblasted plate had resulting average roughness of [R.sub.a]=1,3 [micro]m ([R.sub.z]=11,3 [micro]m).