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METHOD TO PRODUCE HIGH CORROSION AND WEAR RESISTANT CAST IRON COMPONENTS BY WATER JET SURFACE ACTIVATION, NITROCARBURIZATION AND THERMAL SPRAY COATING
METHOD TO PRODUCE HIGH CORROSION AND WEAR RESISTANT CAST IRON COMPONENTS BY WATER JET SURFACE ACTIVATION, NITROCARBURIZATION AND THERMAL SPRAY COATING
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机译:通过水射流表面活化,氮碳化和热喷涂涂层生产高腐蚀和耐磨铸铁组分的方法
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摘要
The invention relates to a method of producing a corrosion resistant coating system on a cast iron substrate preferably in the shape of a brake disc, the coating system being completed by a thermally sprayed top layer, characterised in that the cast iron substrate is first subjected to activation by means of a pulsed water jet after completion of machining which increases the surface roughness of the surface thus treated, whereupon the surface is nitrocarburized so that a corresponding diffusion layer is formed on it, whereupon the surface is subjected to an oxidation process in a next step and only then the top layer is applied by thermal spraying.
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