10.14489/td.2025.09.pp.016-023

2025, 09 September

DOI: 10.14489/td.2025.09.pp.016-023

Syasko V. A., Litvinov B. Ya., Vasiliev A. Yu., Alekhnovich V. V., Tomsky K. A.
THICKNESS MEASUREMENT OF ELECTRODEPOSITED NICKEL-PHOSPHORUS COATINGS OF BALL PLUGS BY MAGNETIC INDUCTION METHOD
(pp. 16-23)

Abstract. The paper deals with the issues of modernization of magnetic induction measuring transducer for measuring the thickness of magnetic electrodeposited nickel-phosphorus coatings used in the manufacture and operation of ball plugs of shut-off valves of gas pipelines. A finite-element model of a magneto-induction measuring transducer with an external ring permanent magnet has been developed, the interfering parameters have been investigated and the main components of the measurement error have been calculated. The calibration of the measuring transducer was carried out and measurements of coating thickness of certified samples of ball plugs were performed, which confirmed the permissible error of the measurement result not more than 5 % of the measured thickness in the range from 25 to 150 microns.

Keywords: ball plug, ENP coating, thickness measurement, magnetoinduction method.

+ - About the Authors Click to collapse

V. A. Syasko, B. Ya. Litvinov (FGUP “VNIIM named after D.I. Mendeleev”, St. Petersburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
A. Yu. Vasiliev (LLC “CONSTANTA”, St. Petersburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.
V. V. Alekhnovich (St. Petersburg Mining University of Empress Catherine II, St. Petersburg, Russia)
K. A. Tomskiy (FGUP “VNIIM named after D.I. Mendeleev”, St. Petersburg, Russia) E-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

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