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Borating metal surface, giving wear-resistant feathered lamella coating - by applying paste contg. borating cpd., heating to cause remelting of outer layer, and cooling
Borating metal surface, giving wear-resistant feathered lamella coating - by applying paste contg. borating cpd., heating to cause remelting of outer layer, and cooling
Tough, deformable, wear-resistant borate coatings are applied to metal articles by contacting a powdered formulation contg. B with at least one surface of the metal article and then heating. The novelty is that outer layer remelting of the metal article surface is performed using a high-energy heating source, causing boron or boron carbide components of the borating powder to be incorporated in the remelt layer so that on cooling, a B-contg., feathered lamella structure is formed. ADVANTAGE - Reduced boration times and preselection of coating hardness. Small deformations of the borated layer do not lead to cracking and the process is easily incorporated into a production line
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