๐”– Bobbio Scriptorium
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Improving the quality of enameled pipes for the oil industry

โœ Scribed by I. V. Stefanyuk; L. G. Khodskii; V. G. Shkadretsova


Publisher
Springer US
Year
1989
Tongue
English
Weight
211 KB
Volume
46
Category
Article
ISSN
0361-7610

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The purpose of this invention is to provide an improve threaded pipe joint for the oil and gas industry. This is achieved by the contact between pin and coupling on the bottom diameter of the pin thread and the peak diameter of the coupling thread. The thread has an asymmetric trapezoidal shape. The