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Brake Drums Reclamation
In Hong Kong, a Metallisation Arc Spray Unit which was supplied to the Kowloon Motor Bus Co. Ltd, is used to reclaim worn brake drums and engineers quickly recognize the significance of this application, as the drums are subject to considerable expansion and contraction from heat during use. The drum is first rough turned and a bond coating of is applied, followed by a deposit of S20/S2 Steel after which the surface is finish turned to size. The application would be impossible with a Flame Spray pistol, the improved cohesion and adhesion of the Arc Spray deposit ensures full adhesion during expansion and contraction.
