Abrasive grit blasting, or sand blast cleaning, is a surface treatment process widely used in a variety of different industries with many diverse purposes. Abrasive blasting is a procedure in which compressed air accelerates an abrasive material through a blasting nozzle. The type of abrasive used depends on the type of surface treatment required. Abrasives that are commonly utilised include:
The choice of media is critical in the design of abrasive blasting procedures. The hardness, shape, and density of the various media types vary, and each is available in a wide range of particle sizes. Sample processing is frequently required in order to lock in the final media type and size. Sand blasting equipment varies by industry; manual cabinets, dedicated automatic high-production units, and completely robotic systems with closed loop process controls are all available. The type of equipment used is determined by the surface treatment applied as well as the component's intended usage.
Traditionally, abrasive grit blasting, also known as sand blasting, has been considered a "low tech" operation. Abrasive blast cleaning is now a critical procedure utilised not only to remove rust, but also to prepare surfaces for high-performance coatings or to treat finished items to give them the sheen and surface texture demanded by the retail consumer.
Abrasive grit blasting has a wide range of applications, including:
Grit blasting is the process of forcing a stream of abrasive material against a surface under high pressure to clean or change its surface qualities. The abrasive material is either contained in a stream of compressed air (dry blasting) or in water (wet blasting) (wet blasting). We employ a variety of abrasives at airo shot blast, depending on the client's specifications, the desired surface finish, and/or the subsequent activity. Garnet, Chilled Iron Grit, SteelGrit, Aluminium Oxide, Glass Beads, and Crushed Glass are examples of commonly used abrasives that remove previous coatings, mill scale, rust, heat scale, and impurities from the substrate, preparing it for subsequent coating, lining.
Depending on your application, the abrasive and pressure are chosen to prepare a surface that meets your needs.
Grit blasting can be done in a variety of ways. Abrasive can be driven by compressed air alone, with water added for wet blasting, or manually in a wheelabrator machine. This guarantees that grit blasting is a viable option for a wide range of applications.
Grit blasting is a technique for preparing a surface for Non-Destructive Testing/Evaluation. Its goal is to give a clean surface that is free of mill scale, rust, heat scale, and pollutants so that professionals may assess the substrate.
Coatings and linings serve as a barrier between the underlying surface and corrosion, erosion, or both. When a coating or lining is applied to a properly prepared surface, it improves the performance and life expectancy of both the coating/liner and, more importantly, the plant, equipment, or item to which it is applied. Grit blasting removes previous coatings, mill scale, and other surface impurities while also creating a surface anchor profile that assists subsequent coating or liner adhesion.
Grit blasting can be used to clean a surface by removing residues, impurities, and scale, enhancing and increasing the efficiency of a seemingly endless variety of plant and equipment.
The following items are required for industrial blast cleaning / grit blasting:
When it comes to grit blasting, health and safety are crucial, and personal protective equipment (PPE) is the blast operative's last line of defence. A blast operative is required to wear a blast helmet that provides impact protection as well as a supply of clean breathing air. Blasting overalls offer additional protection against the abrasive mediaricochet. Blasting gauntlets and safety footwear to protect the hands and forearms.