Camera sand as the foundation of their work is the principle of the processing of any article of the abrasive jet of compressed air (high pressure).The technology of the plan appeared in the US in the 70s of the 19th century, when one military drew attention to the fact that under the influence of wind sand leave scratches on the glass, so that it gradually becomes opaque.This is a natural phenomenon and formed the basis of the patent.
What materials are used in the "sandblasting"?
Camera sand now works not only with sand.The number of abrasive materials include: silicon carbide fraction, plastics, corundum and others. It is used when necessary to clean from scale, paint or rust, oil or bitumen internal or external surfaces.In addition, "sandblasting" is used for degreasing and processing materials prior to painting, which make it possible to obtain a prolonged lifetime of coatings.
kinds of cameras
Camera sand can be pressure or injection.The first embodiment is characterized in that it is used for large products.Such devices have tanks for abrasives in the amount of 75-900 liters, which allows you to not suspend the workflow for reloading abrasive with them at the same time can work two specialists (on some models).Pressure "sandblasting" often operate in the ship-repair facilities, they are quite large in size (a height of about one and a half or two meters) and weight (up to a quarter of quintal tonnes).With such equipment can handle tens of square meters of surface per hour.
Camera sand type of injection is more simple in design, has a size of less than a meter and a volume of about 20-30 liters.These are commonly used in garages for stripping metals for painting, artificial aging of wood or rocks glass matting.Unlike pressure mechanisms injector embodiments operate on small, lightweight abrasives, m. E. Processing of articles such as shot using them impossible.
works inside the chamber
In addition, sandblasting chamber can be inhabited type.This means that the chamber is an employee in protective attire (including the equipment for autonomous breathing and air flow), which conducts the work.Such devices allow to process large parts in a short time with significant cost savings abrasive.As supplies in these "sandblasting" is used cast iron or steel shot, so they are also called shot blasting chamber.
chamber sandblasting consumes a certain amount of compressed air: 1.3 to 5.63 m3 per minute and articles for pressure up to 1.2 m3 for injection options.Thus on the treated surface creates a pressure of from 3.5 to 7 kilograms per square centimeter.Operation "sandblasting" refers to the category of high risk, ie. K. The presence of high pressure and high velocity of the abrasive particles during cleaning surfaces.Therefore, camera operators should be trained in "Sandblasting" and strictly observe safety precautions.
