MANUFACTURING METHOD OF HEAVY-WALLED TUBES

FIELD: metallurgy. ^ SUBSTANCE: method includes double-line screw rolling of heated tubular billet plug rolling by three rollers and screw calibration by three rollers. In the capacity of blank there are used coupling fittings of served drill pipes. From drill pipe there are cut lock ends, heated an...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	RJABOV IGOR' EVGEN'EVICH, DMITRIEV ANATOLIJ VALENTINOVICH, SYVOROTKIN ALEKSANDR SERGEEVICH, SHULIKA IGOR' PAVLOVICH, V'JUGINA LJUDMILA ANATOL'EVNA
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	DISPOSAL OF SOLID WASTE MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL RECLAMATION OF CONTAMINED SOIL SOIL ROLLING OF METAL TRANSPORTING
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