«Equipment and technologies for oil and gas complex»

Possibilities of non-destructive methods for controling graphite elements of technical devices

UDC: 620.22-032.36
DOI: 10.33285/1999-6934-2023-2(134)-12-19

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia
² Merzhanov Institute of Structural Macrokinetics and Materials, Russian Academy of Sciences, Chernogolovka, Russia

Keywords: thermally expanded graphite, structural defects, macro-analysis of the structure, counterfeit, visual-measuring control, eddy current control, sealing rings

Annotation:

The article considers tribotechnical factors and the main criteria characterizing sealing and gasket products made of thermally expanded graphite. Graphite parts and elements of technical devices (o-rings of mechanical seals and sheet material) of domestic and foreign manufacturers were chosen as the object of the study. The survey of the object included analysis of technical and operational documentation, visual-measuring control and identification, macro-analysis of the structure, special attention was paid to eddy current testing. It is shown that in order to identify counterfeit products and defects in the macrostructure of graphite parts and technical devices elements of hazardous production facilities it is advisable to use integrated control.

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