Commenced in January 2007
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An Advanced Technology for Renovation of Extruding Shafts

Authors: Dimitar Karastoyanov, Vladimir Monov


The paper is concerned with the technological process of renovation of shafts used in industrial manufacturing for extruding of sheet material. In the classical renovation technologies, a chrome based coating is applied to the working surface of the shaft in galvanic baths. The process, however, is known to be exclusively harmful due to the waste cyanide products. In this work, we present an advanced nanotechnology based on nonelectric chemical laying of a nickel coating with included nanoparticles. The technology is environmentally harmless and the new coating features an increased hardness and wear resistance. Results from experimental tests of the nanostructured nickel coating are presented and discussed.

Keywords: Materials Processing, Nanoparticles, nickel coating, shafts renovation

Digital Object Identifier (DOI):

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