Prof. Zorin Vladimir
Academician of the International Academy of Engineering and the Academy of Quality Problems, Russia
Title: The use of protective coatings made of polymer composite materials in the manufacture and repair of machinery
Abstract:
The parts of transport and technological machines operate under the simultaneous influence of a complex of factors:
• Mechanical abrasive wear
• Shock dynamic loads
• Aggressive chemical environment
• Long service life of machines
• Fatigue failure and vibration: cyclic loads and vibrations of machine parts lead to the accumulation of fatigue damage and deterioration of technical condition, resulting in reduced productivity and safety of machine use.
The combined influence of these factors forms complex mechanisms of damage to parts, significantly reducing machine productivity, working equipment life and increasing operating costs. Traditional strategies for increasing the durability of machine working equipment parts include optimizing cleaning procedures, modifying component geometry, or increasing the hardness of structural materials of parts (using high-hardness materials, quenching, and chemical and thermal treatment of parts during production and repair). These approaches have fundamental limitations.:
• Their effectiveness is limited and does not solve the fundamental problems of protecting parts from external aggressive influences.
• The use of traditional protective coatings often involves significant costs for maintenance, repair and replacement of parts.
• They do not provide long-term sustainability and economic efficiency.
The use of polymer composite coatings applied to the working surface of machine parts is proposed as a technically and economically sound solution. Key components of coating formation:
• Polymer matrix: selected based on materials with suitable complex properties, mainly epoxy resins (EP) and polyurethanes/polyureas (PU/PM).
• Multifunctional fillers: A combination of fillers for various purposes: Reinforcing fillers (Al₂o₃, SiC) to increase wear resistance; Solid lubricating fillers (graphite, Mos₂, h-BN) to reduce the friction; Nanofillers (nano-SIO₂, CNT) to improve the mechanical strength and operational properties of protective coatings.
Objective: to achieve a balanced combination of hardness, toughness, wear resistance, chemical resistance and performance properties of protective coatings.
Biography:
Zorin Vladimir graduated from the Moscow Automobile and Road Institute MADI in 1970. Currently Head of the Department of Production and Repair of Cars and Road Machines MADI, Academician of the International Academy of Engineering and the Academy of Quality Problems, Honored Scientist of the Russian Federation, Honored Engineer of Russia, Dr. tech. Sciences, professor, laureate of the competition "Golden Names of Higher School of Russia" for 2020, is the author of a number of fundamental works and conducts active research activities in the field of quality assurance of transport and technological machines at the stages of design, production, operation and repair. He is the head of master's training programs in the fields of engineering technology, production and repair of cars and road-construction machines , as well as a number of programs for training graduate students and doctors of technical sciences.
More than 550 scientific papers have been published, including more than 60 textbooks, study guides and monographs, more than 40 patents for inventions and computer programs have been obtained.
V.A. Zorin worked abroad for many years: he lectured at universities in Hungary, Yugoslavia, China, Kazakhstan. Actively cooperates with educational, research and production organizations in Germany, USA, China, Sweden, Italy, etc.