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  5. Calculation method for assessing the quality of the threaded portion of oil pipe assortment using the reduced rate

Calculation method for assessing the quality of the threaded portion of oil pipe assortment using the reduced rate

M.A. Kononenko, N.Ya. Gablovska
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The possibility of using Trapeznikov factor-coefficient for a comprehensive assessment of the tubing threaded portion quality for the GOST 632-80 depending on the age was analyzed, namely cycles of screwing and unscrewing when lowering and lifting and transportation operations.
Keywords: pump and of compressor pipe, thread, threaded connection, a single quality index, a comprehensive quality indicator, weighting indicator, the cycle of screwing – unscrewing