Rotary Wire Brushing Post-Treatment
Rotary brush finishing is a mechanical process where surfaces or welds are cleaned with rotating stainless steel wire brushes. This removes heat tint and light scale. It is important to use iron-free tools.
Physicochemical Mechanism of Action
Rotary brush post-treatment uses the mechanical friction between the stainless steel wire and the surface being worked to remove heat tint and scale. The pressure and torque of the brush remove surface contamination through microscopic damage to the surface.
Metallurgical Relevance & Welding Risks
Rotary brush post-treatment is important to remove heat tint and scale that form during welding. These contaminants can hurt the structure and lead to cracks or unevenness. Iron-free tools must be used to avoid contamination and ensure a defect-free weld.
Workshop Practice & Instructions
Use stainless steel wire brushes with a torque of 10-20 Nm. The brush should be turned perpendicular to the surface and hold a speed of 300-500 rpm. The working time is normally 1-2 minutes per cm² of surface. Make sure the tools are iron-free and contain no contamination.