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Methods and apparatus for surface preparation and dual polymeric layer coating of continuous-strip flat-rolled sheet metal, and coated product
Methods and apparatus for surface preparation and dual polymeric layer coating of continuous-strip flat-rolled sheet metal, and coated product
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机译:连续带状扁轧薄板的表面制备和双聚合物层涂层的方法和设备以及涂层产品
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摘要
Processes and apparatus for manufacturing an engineered-composite combining rigid flat-rolled sheet metal continuous-strip and selected polypropylene thermoplastics, which are formulated into dual polymeric coating layers for extrusion deposition, as distinct layers, on a single surface at a time, of continuous-strip, traveling in-line at ambient temperature. Steps for forming a uniform thickness of polymeric layers across strip width, and attraction to an activated metallic surface which provides enhanced adhesion. Solidification of the polymeric layers is augmented by strip temperature during continuous-in-line travel; final dual-surface finishing provides for complete bonding of the polymeric layers on both metallic surfaces.
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