Technology and Organization of Shipbuilding and Ship Repair
DOI: http://www.dx.doi.org/10.24866/2227-6858/2020-1-8
Leont’ev L., Shapkin N., Makarov V., Toklikishvili A.
LEV LEONT’EV, Doctor of Engineering Sciences, Professor,
ORCID: 0000-0002-8072-306X, ResercherID: U-9351-2017, ScopusID: 6603944093, e-mail: leontyev.l.b@yandex.ru
ANTONINA TOKLIKISHVILI, Candidate of Engineering Sciences, Associate Professor, e-mail: Toklikishviliggg@yandex.ru
Department of Welding, School of Engineering
NIKOLAY SHAPKIN, Doctor of Chemical Sciences, Professor,
ORCID: 0000-0002-4287-8917, ResercherID: I-2935-2014, ScopusID: 6603925928, e-mail: npshapkin@gmail.com
Department of Inorganic and Organic Chemistry, School of Natural Sciences
Far Eastern Federal University
8 Sukhanova St., Vladivostok, Russia, 690091
VASILY MAKAROV, Head of the Mechanical-mechanical Section of the Hull-dock Workshop,
Dalzavod Ship Repair Center JSC, e-mail: makarov_vasily@mail.ru
2 Dalzavodskaya St., Vladivostok, Russia, 690001
Selection of organo-inorganic materials for hardening
of crankshafts necks of marine medium-speed diesel engines
Abstract: The present paper presents the results of studies of tribotechnical properties of crankshaft – cover – the neck shaft conjugation of a medium-speed marine diesel engine. In order to increase durability of crankshaft bearings it is proposed to form wear-resistant thin-film ceramic metal coatings on shaft necks, which can be obtained by method of surface tribomodification by natural and artificial layered silicates.
Chemical composition of some tribotechnical materials is given for the first time. It was found that by changing the chemical composition and structure of tribotechnical materials, it is possible to increase the durability of triboscreating in a large range due to optimization of parameters of composition, structure, topography, hardness and modulus of elasticity of the coating. The results of investigation can be used for hardening of crankshafts necks during the overhaul of diesel engines.
Keywords: durability, bearing, crankshaft, diesel, tribotechnical material, coating, wear resistance, repairs.
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