Shot peening is a surface treatment process used to restore deformed or damaged drive belts and improve the durability and mechanical properties of materials.
Each ball that strikes the belt acts like a peening hammer, creating a small indentation, or dimple, on the surface.
In order to address the need to restore deformed belts, there are so-called portable shot blasting units.
[5] An electric shut-off valve is mounted on the inlet air hose to protect the belt from over-blasting should it suddenly stop during the blasting operation.
[7] The machine operates by drawing a quantity of tungsten shot from the bottom of the scroll case into the high-velocity nozzles.
[9] This process is time-consuming and expensive, requiring cutting the belt, dismantling it from the press, turning it, and then reinstalling it.
The reinstallation involves various belt joining operations such as welding and grinding of the joint, as well as running-in procedures.