发明授权
US4794680A Novel wear-resistant laser-engraved ceramic or metallic carbide surfaces for friction rolls for working elongate members, method for producing same and method for working elongate members using the novel friction roll 失效
用于工作细长构件的摩擦辊的新型耐磨激光雕刻陶瓷或金属碳化物表面,其制造方法和使用新型摩擦辊来加工细长构件的方法

Novel wear-resistant laser-engraved ceramic or metallic carbide surfaces
for friction rolls for working elongate members, method for producing
same and method for working elongate members using the novel friction
roll
摘要:
The invention is to friction rolls for working elongate members, e.g., webs or strands, such as crimper rolls, draw rolls, yarn package drive rolls comprising a roll having a generally cylindrical external surface and a ceramic, e.g., alumina, mixtures of alumina and titania, chromia, zirconia, or metallic carbide, e.g., tungsten carbide, coating bonded to the external surface, the coating being laser-engraved, that is, having a plurality of laser-formed depressions having a pattern covering substantially the entire exterior working surface of the roll and providing a uniform, wear-resistant surface texture over substantially the entire working surface.
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