ABRASIVE BLAST CLEANING
Sandblast cleaning of metal structures from rust (surface preparation before anti-corrosion protection or painting)
Applying paint materials to metal structures is a specific sequence of actions and a rather complex process requiring knowledge, professional training and specialized equipment. First of all, the surface must be prepared. The most effective method of surface preparation is abrasive, or, as it is commonly called, sandblast cleaning of metal. Quartz sand, nickel slag, copper slag, and crushed or round shot are used as abrasives.
Technology of sandblasting metal, brick and concrete
The principle of abrasive (sandblast) cleaning of metal is to damage the surface with an abrasive, which removes unwanted layers, rust and scale, hardens the material surface and prepares it for the subsequent application of new anti-corrosion coatings. The abrasive particles are sprayed under compressed air or liquid (in the hydro-abrasive method). Using the sandblasting method requires special skills and a fully organized quality-control system. For safety, when working in confined spaces, a supply-and-exhaust system must be present in the blasting area. People must be properly equipped and provided with personal protective equipment.
Sandblasting of containers and tanks is even safer, since a surface with a closed or semi-closed contour is treated.
Advantages of abrasive blast cleaning of metal
Using abrasive blasting, the old coating, rust, mould and scale are removed from the metal surface, and the structures are cleaned of soot. Laitance is removed from concrete surfaces and the required roughness is imparted.
Abrasive blast cleaning of a surface is used in various fields, including as a method of decorative treatment of wooden or brick structures. In addition to the cleaning effect, sandblasting increases the service life of coatings. This makes it possible to further extend the service life of structures and save on repair and installation work. Abrasive or sandblast surface treatment is the most technologically advanced and cost-effective method of surface preparation, which, compared with mechanical cleaning using brushes or grinders, makes it professional and the most popular. We offer sandblasting of metal and concrete in Tashkent, Samarkand, Bukhara, Almalyk, Nukus, Fergana and many other cities and regions of the Republic of Uzbekistan. We work with structures of any kind (bridges, masts, pipes, pipelines, overpasses, tanks, vessels, containers, racks, building structures, etc.).
When sandblasting metal structures, building facades, concrete and pipelines, our specialists use high-tech equipment based on Atlas Copco compressors and DBS-type units. The power of the equipment allows the work to be organized at 1 or 2 stations from each compressor, which guarantees mobility and makes the process economical. The working fraction of the abrasive is carefully selected. Control of the nozzle cross-section is individual for each structure, which allows strict control of abrasive consumption during the process. Ultimately, the combination of all these measures provides the required high quality and proper economic efficiency of sandblasting. On-site sandblasting is possible.
Prices for sandblasting metal
Currently, sandblasting of metal and cleaning of metal structures is considered the most optimal way of cleaning surfaces. Sandblast cleaning of corrosion is a fast and effective method for industrial units, piles, floor slabs and the like. At the same time, the high speed, efficiency and final quality of sandblasting services fully justify the prices set on the market. There is no single price list for sandblasting work.
The cost of sandblasting is calculated based on the following factors:
- the total scope of work and the required degree of surface cleaning;
- the season and weather conditions;
- production conditions (height, access to structures, technical and organizational parameters);
- the geographical location of the facility.