Sandblasting. Equipment for sandblasting and cleaning

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2020-05-07 21:00:11

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The Formation of raids, distorting and simply unwanted coatings on various products and designs, as a rule, does not coincide with the requirements for their operational properties. Way out be means of the processing, including grinding and polishing. But such methods of Stripping the surface may be ineffective in removing the scale, rust, and in some cases old paint. The consequences of the deep processes of deformation will only cope sandblasting the surface, based on the principles of abrasion. The tool is activated the sand, which acts as a Stripping component. However, this principle imposes strict demands on safety in the process.

Sand Blasting guns

sandblasting

There are two groups of such equipment. You should start with models of open type. As a rule, small sandblaster, the price of which averaged from 3 to 7 thousand rubles By design, it resembles a building the gun, running on Pneumatics. Such devices can be used in the cleaning of stone, concrete and metal surfaces from old paint, rust, dirt, etc.

The advantages of the pistol include mobility, ease of use and the possibility of a careful construction of complex forms. Due to the small capacity of the unit, sandblasting practically does not damage the base surface. On the other hand, the use of air guns for certain types of work in the workshops is impractical, therefore, in such cases, use the equipment of the closed type.

sandblasting surface

Sandblast camera

This second category of abrasive equipment, whose function also provides sanding. Such devices are used for dry machining of metal parts to rid their surfaces from old paint, rust, scale and varnish. As the working chips are usually used electrocorundum or river sand – the average fraction varies from 0.1 to 0.9 mm. the Specific parameters of the abrasive is determined by the tasks that need to run sandblast. The price of such models is 15-20 thousand rubles. While there are more expensive equipment, which is characterized by large dimensions and, consequently, performance.

The Principle of sandblasting

sandblasting metal

In the process of operation of the apparatus directs a stream of abrasive particles onto the surface. In most devices, the force that accelerates the movement of sand, is produced by the energy of compressed air. A model of such equipment involves three basic elements, among which - directly inkjet device, the compressor and the abrasive particles. Also be aware that sandblasting can be performed with varying degrees of pressure force that acts on the abrasive. The operator adjusts this figure for optimal results. The fact that a high degree of pressure is capable not only to eliminate the cleaned coating, but also cause damage to the main surface. So the user requires certain skills and abilities in adjustment of treatment parameters.

Levels of cleaning in the processing of metal

sandblaster price

Clean up metal surfaces using blasting equipment is considered the most common. Today developed special requirements to the surface quality, ready for further use. They should be guided, if you plan on sandblasting of metal abrasives. Thus, the standards of GOST there are four levels of cleaning surfaces from corrosion and scale:

  • During inspection under a sixfold increase in the incidence of rust and scale are not detected.
  • Visual inspection with the naked eye is not discernible in the scale, the particles of moulding sand, traces of corrosion, metal penetration and other non-metallic layers.
  • Up To 5% of the working square stained slag and foundry edge that can be seen by the naked eye.
  • The product has no obvious signs of corrosion and loose scale.

Safety

In the basic set of elements for ensuring individual protection includes helmet, gloves and if necessary, jumpsuit. At the same time on the workplace where sand blasting is performed must beprovided and spare glasses for the hat in case the main set gets corrupted. As for the apparatus, it should be grounded, otherwise there is a risk of electric shock. Today, more and more inexperienced craftsmen pay attention to models with remote control, believing that they are safer and easier to use. But this is not true, because the design of such devices more susceptible to contamination by abrasives and requires careful maintenance.

blast cleaning of steel structures

Also in the workplace you need to provide a stock of consumable parts. Especially if you are performing sandblasting of the metal, you should have at hand rubber seals for the hoses and ring nozzles. If necessary, it will be possible to replace these elements without stopping organized workflow.

Conclusion

The Formation of corrosion on the surface of the car body leads to the despair of many motorists. This means that you will have to go to a special service and to pay a considerable amount for repairs. Of course, there are alternative means of cleaning metal surfaces in the form of sandpaper and grinders, but sandblasting is much faster and more effectively. And it concerns not only metal, but also stone and concrete products and building structures. Main – to choose the right model sandblaster. The most popular of the pneumatic device. At small cost they guarantee complete elimination of any surface from unwanted coatings without damaging the structure of useful material.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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