Blasting feathers is a process of cleaning a mechanical abrasion performed on a metal surface by a rotary electric device such as a brush. It is made up of high-grade carbon steel wire edges, which are designed with a bend in the forward angle, ie, the wire shank is bent toward the rotation of the tool. During operation, the rotating tip of the hair is brought into direct contact with the metallic surface, where the feather ends hit the surface with kinetic energy equivalent to a process using a grit blast medium. This repeated contact from the sharp end of the feather to the target surface results in localized, rebound, and crater-shaping effects, thus simultaneously cleaning and soiling the surface, while exposing the base metal free of contamination.
Video Bristle blasting
Differences from conventional brushes
The difference from conventional wire brushing with angle grinders lies first with the installation of bristle bristles. With a conventional swivel brush, the wire feathers are mounted stiffly on the hub, the feathers are sometimes twisted or tied in a group for extra stiffness. With blasting feathers, the cable is fitted firmly in a flexible belt. As the brush spins, immediately before contacting the work, a row of feathers is trapped behind the 'accelerator rod', which causes them to bend back in their flexible holder. As the feathers pass through the accelerator rod, they are released to the spring forward. The extra energy stored for each feather when flexed backward is added to their kinetic energy when released, and when they affect the workpiece surface. This gives a harsher impact to the surface, resulting in greater cleaning power, compared to a simple rotary brush at the same speed.
Because the brush geometry is also distorted from the circle by the accelerator rod, the angle of contact of the tip of the jar with the surface is also closer to perpendicular than the tangential contact of the circular brush. This encourages cleansing and reduces the polishing action that can be a problem with the swivel brush, where the surface is polished, but not completely cleared from the surface eater. The sharper action of the tip pushes the pitting effect on the surface, which may be considered useful for further painting.
Maps Bristle blasting
Details
The cleaning performance of the feather blasting process is a consequence of the synchronized impact from the tip of the feather to the target surface. The head of the tool with the feather belt rotates about 2,500 rpm. A 'bar accelerator' holds the tip of its fur and by releasing it increases their kinetic energy by which they attack the surface. As soon as the feathers attack the rusted steel surface, they pull back (rebound) from the surface ('single impact'), which results in corrosion removal and micro-identification that exposes a very thin metallic surface. The number of major impact craters produces textures and surfaces that in visual hygiene and roughness (anchor profiles) mimic those obtained by a grit blasting process. The cleaned and crude surfaces are considered advantageous for subsequent applications and adhesion of protective films and industrial coatings.
Process and tools
A feather blasting device made from high-carbon steel wire protruding through a flexible circular belt. The belt, in turn, is attached to a rotating hub, which is supported by electric or pneumatically driven spindles. This tool is lightweight, portable, and easy to implement by workers without the need for complicated settings or sophisticated safety equipment.
Apps
Fur blasting is most commonly used to remove unwanted film layers and corrosion coatings that can form on metal surfaces. Common applications include cleaning, preparation, and repair of iron and steel components used for fabrication of bridges, ships, and piping systems.
See also
- Abrasive blasting
- Peening Shot
- Wire brush
- Needlegun scaler
References
{{Kategori Commos | Bristle blasting {{
Source of the article : Wikipedia
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