Scientific and technical journal

«Proceedings of Gubkin University»

ISSN 2073-9028

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Proceedings of Gubkin University
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1 (302)
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ANALYSIS OF CAUSES FOR METAL DEFECTS IN MAIN LINE PUMP IMPELLER

UDC: 662.692.4.004.6
DOI: 10.33285/2073-9028-2021-1(302)-104-110

Authors:

NEGANOV DMITRY A.1,
ZORIN EVGENIY E.1,2

1 LLC “Pipeline Transport Research and Development Institute”, Moscow, Russian Federation
2 Gubkin Russian State University of Oil and Gas (National Research University), Moscow, Russian Federation

Keywords: cast impeller of main line pump, non-destructive testing, defects, chemical analysis, mechanical tests

Annotation:

The faulty cast impellers of main line pumps, selected in the course of visual inspection, underwent non-destructive testing for defect detection, as well as chemical analysis and metallic mechanical tests for compliance with the existing regulations. Specialists established deviations of physical, metallurgical and technological properties from normal values, these appeared in the course of manufacturing, and which led to the appearance of metal defects in researched impellers.

Bibliography:

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