METHOD AND DEVICE FOR MAKING PROFILED PIPES USED FOR WELL CONSTRUCTION

The method consists in profiling a part of a cylindrical pipe by drawing it through a forming instrument and in reducing the pipe along its whole length so that the diameter of the cylindrical section of the pipe is equal to the diameter of the circumscribed circle of its profiled section. The devic...

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Bibliographische Detailangaben
Hauptverfasser:	BULGAKOV, RISHIT TIMERGALEEVICH, VAKULA, YAROSLAV VASILIEVICH, SHAYAKHMETOV, SHAMIL KASHFULLINOVICH, ABDRAKHMANOV, GABDRASHIT SULTANOVICH, FOTOV, ALEXANDR ANDREEVICH, IBATULLIN, RUSTAM KHAMITOVICH, ALESHIN, VLADIMIR ARKADIEVICH, MOISEEV, GENNADY PETROVICH, FROLOV, ALEXANDR YAKOVLEVICH, PEROV, ANATOLY VASILIEVICH, MINGAZOV, ILMAS FALIKHOVICH, ZAINULLIN, ALBERT GABIDULLOVICH, VAFIN, ILDUS ZAKIEVICH, DUEV, VENIAMIN NIKOLAEVICH, LYASHENKO, IVAN ANDREEVICH
Format:	Patent
Sprache:	eng ; rus
Schlagworte:	ADHESIVES AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL CHEMISTRY COMPOSITIONS BASED THEREON DYES HETEROCYCLIC COMPOUNDS MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS POLISHES PUNCHING METAL THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	The method consists in profiling a part of a cylindrical pipe by drawing it through a forming instrument and in reducing the pipe along its whole length so that the diameter of the cylindrical section of the pipe is equal to the diameter of the circumscribed circle of its profiled section. The device for implementing the method comprises, mounted on a drawing bench, a reducing die (2) secured in a casing (1) and a drawing carriage. In front of the reducing die (2), on both sides of the passage of the pipe (5) to be made, are mounted cams (6) provided on their ends with forming rolls (7) and on the other ends with fork-shaped levers (8) co-operating with the drawing carriage by means of a tie-rod (11) with slots (10) in which are mounted locks (9) interacting with the fork-shaped levers (8). The device further comprises a rotatable lever (29) provided with a support roller (31) and mounted on the casing (1). One arm of the lever (29) co-operates through a support roller (31) with the pipe (5) to be profiled and the other arm is provided with hingedly secured stops (26) periodically interacting with the cams (6). Le procédé consiste à profiler une partie d'un tube cylindrique en l'étirant au moyen d'un instrument de formage et en réduisant le tube sur toute sa longueur afin que le diamètre de la section cylindrique du tube soit égal au diamètre du cercle circonscrit de sa section profilée. Le dispositif permettant la mise en oeuvre du procédé comporte, montée sur un banc d'étirage, une matrice réductrice (2) fixée dans une structure (1) et un chariot d'étirage. Devant la matrice réductrice (2), des deux côtés du passage du tube (5) à fabriquer, sont montées des cames (6) pourvues sur leurs extrémités de cylindres de formage (7) et sur les autres extrémités de leviers (8) fourchus coopérant avec le chariot d'étirage au moyen d'un tirant de raccordement pourvu d'encoches (10) dans lesquelles sont montés des verrous (9) à action conjuguée avec les leviers (8) fourchus. Le dispositif comprend également un levier rotatif (29) muni d'un rouleau porteur (31) et monté sur la structure (1). Un bras du levier (29) coopère, par l'intermédiaire d'un rouleau porteur (31), avec le tube (5) à profiler, et l'autre bras est doté de butées (26) fixées de manière articulée et à action périodique conjuguée avec les cames (6).