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process for producing low density polymer or metal matrix with ceramic substrates and / or metal ceramic coating and low density components with high strength so produced
process for producing low density polymer or metal matrix with ceramic substrates and / or metal ceramic coating and low density components with high strength so produced
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机译:具有陶瓷基材和/或金属陶瓷涂层以及具有高强度的低密度组件的低密度聚合物或金属基质的生产方法
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摘要
Process for the manufacture of low density components of high surface strength having a polymer or metal matrix substrate and ceramics and/or metal-ceramics coating, wherein the low density substrate to be coated is subjected to the following steps: optionally, matching the surface in order to generate residual compressive stress in the outer layers; optionally, thermal stabilizing at a temperature lower than 350° C.; depositing onto the outer surface, with hot spraying techniques at a temperature ranging from 70 to 350° C., of a coating layer in ceramics and/or metal-ceramics material of a surface strength higher than that of the component to be coated, the surface of the coating layer being optionally subjected to a finishing treatment. The invention also relates to the low density components of high surface strength thus obtained. The FIGURE is a perspective view of a recirculating ball unit with the raceway P coated in conformity with an embodiment according to the invention.
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