New Antifriction Composites for Printing Machines Based on Tool Steel Grinding Waste

Tetiana Roik, Oleg Gavrysh, Ahmad Rashedi, Rasheda Khanam, Ali Raza and Byongug Jeong
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Tetiana Roik: Publishing and Printing Institute, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremogy Avenue, 03057 Kyiv, Ukraine
Oleg Gavrysh: Publishing and Printing Institute, National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”, 37 Peremogy Avenue, 03057 Kyiv, Ukraine
Ahmad Rashedi: School of Mechanical and Aerospace Engineering, Nanyang Technological University, Singapore 639798, Singapore
Ali Raza: Department of Civil Engineering, University of Engineering and Technology Taxila, Taxila 47050, Pakistan
Byongug Jeong: Department of Naval Architecture, Ocean and Marine Engineering, University of Strathclyde, 100 Montrose Street, Glasgow G4 0LZ, UK

Sustainability, 2022, vol. 14, issue 5, 1-11

Abstract: In this article, we present research results on the structure and properties of new self-lubricating antifriction composites based on 4H4VMFS tool steel grinding waste with solid lubricant additives. The new composites are designed to work in the friction units of offset cylinders in printing machines at rotation speeds up to 7000 rpm and increased loads up to 5.0 MPa. The developed technology formed composites with a fine-grained heterophase structure with a metal matrix base of tool steel 4H4VMFS regenerated grinding waste, consisting of high-alloy α−solid solution and hard grains of alloying element carbides, as well as evenly distributed CaF 2 antiseizure solid lubricant. This structure ensured the formation of composites with favorable functional properties. During the friction process, antiseizure films were formed on the contact surfaces, resulting in a self-lubrication mode. Comparative tests for friction and wear showed significant advantages of the new waste composite compared to cast bronze parts, which are traditionally used in the friction units of offset cylinders of rolled newspaper printing machines. The stable operation of the new composite made it possible to ensure a “wear-free” effect. Studies have shown the importance and prospects of using the wide range of valuable grinding waste in the reproduction cycle to manufacture quality composites. Reuse of such waste would significantly protect the environment from pollution connected with human activity industrial and mitigate negative impacts on ecosystems and the biosphere.

Keywords: grinding waste; tool steel; technology; antifriction composite; microstructure; solid lubricant; tribological properties; antiseizure films; offset cylinder; environment (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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