Authors: S.G. Chulkin, A.D. Breki, A.M. Kuzmin
Abstract
The article shows the scope of application of thermally expanded graphite as a sealing material in various industries, including shipbuilding, due to its consumer qualities that other carbon materials do not possess: elasticity and plasticity. The relevance and timeliness of the active development of this area of scientific and technological progress are dictated by the requirements of environmental safety. The description of the physical and mechanical and antifriction properties of seals made of thermally expanded graphite has been given together with the examples of specific products. The main technical advantages of new sealing materials made of thermally expanded graphite have also been described. The research methodology has been given, including a description of a device for studying the antifriction properties of seals made of thermally expanded graphite and other materials. Furthermore, the main elements of the device and their functional purpose have been described in detail. The results of studies of the anisotropy of the thermally expanded graphite seal antifriction properties have been presented. It has been established that the friction force of the surfaces of real thermally expanded graphite seals f on steel depends on the direction of movement.
Keywords: thermally expanded graphite, physical and mechanical property, antifriction property, seal, methodology, research.
References
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About authors:
S.G. Chulkin, DSc, professor, St. Petersburg State Marine Technical University, Institute of Problems of Machine Science of the Russian Academy of Sciences (IPMach RAS)
A.D. Breki, DSc, professor, Peter the Great St. Petersburg Polytechnic University, IPMach RAS, St. Petersburg
A.M. Kuzmin, JSC "Central Design Bureau of Mechanical Engineering", St. Petersburg
Issue: 68/69 (2022)
For citation: S.G. Chulkin, A.D. Breki, A.M. Kuzmin. Studies of antifriction properties of seals made of thermally expanded graphite. Research Bulletin by Russian Maritime Register of Shipping. 2022, No. 68/69, pp. 104-113.
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