METHOD OF MAKING ELECTRICALLY WELDED LIMIT-LENGTH TUBES Russian patent published in 1998 - IPC

Abstract RU 2119837 C1

FIELD: manufacture of electrically welded tubes in piece and small-scale production processes. SUBSTANCE: sheet is secured to mandrel by its lengthwise edge. At normalized rotation of mandrel sheet is wound onto it and it is simultaneously bent and reduced by rollers moving along mandrel until full revolution of the last. Then sheet edges are welded. Walls of tube blank may be reduced simultaneously by means of several rollers. Such procedures allow to use non-specialized low-power equipment for making high-quality tubes of hard-to-form alloys with enhanced elasticity properties. EFFECT: enhanced efficiency of method. 2 cl, 1 dwg

Similar patents RU2119837C1

Title Year Author Number
ROLL GROOVED PASS IN MILL FOR MAKING WELDED STRAIGHT-SEAM TUBES 2000
  • Mjagkov Ju.A.
RU2185909C2
ROLL PASSES FOR ASYMMETRIC FORMING OF BREAKDOWNS OUT OF HARD-TO-FORM ALLOYS 2002
  • Mjagkov Ju.A.
RU2218224C1
METHOD OF MAKING HOLLOW TUBULAR BLANK FOR PRODUCING SEAMLESS TUBES FROM PSEUDO-ALPHA AND (ALPHA+BETA)-TITANIUM ALLOYS 1998
  • Smirnov V.G.
  • Rybakov E.V.
  • Smirnov G.V.
RU2127160C1
METHOD FOR COLD PILGER ROLLING OF TUBES 1999
  • Vasil'Ev B.A.
  • Chalkov N.A.
  • Chernenko A.G.
RU2150342C1
TECHNOLOGICAL TOOL FOR COLD ROLLING OF TUBES 1998
  • Vasil'Ev B.A.
  • Chalkov N.A.
  • Chernenko A.G.
RU2133161C1
DRAWING DIE 1996
  • Sokolovskij V.I.
  • Smirnov V.G.
  • Smirnov G.V.
RU2101109C1
PIPE PRESSING METHOD AND APPARATUS 1996
  • Tetjukhin V.V.
  • Smirnov V.G.
  • Sokolovskij V.I.
  • Smirnov G.V.
RU2094148C1
CUTTING OFF PUNCH 1998
  • Smirnov V.G.
  • Smirnov G.V.
RU2127645C1
METHOD FOR SHAPING TUBULAR BLANK AND SLOT WASHER FOR PERFORMING THE SAME 1998
  • Kolesnikov K.I.
  • Tsykalov V.F.
  • Buksbaum V.B.
  • Kozlovskij A.M.
  • Bezzubov A.V.
  • Pykhov S.I.
RU2149721C1
METHOD FOR MANUFACTURING WELDED STRAIGHT-SEAM PIPES OF TITANIUM ALLOYS 2016
  • Morshinin Sergej Vladimirovich
RU2638476C1

RU 2 119 837 C1

Authors

Smirnov V.G.

Tetjukhin V.V.

Grishechkin A.I.

Sokolovskij V.I.

Smirnov G.V.

Dates

1998-10-10Published

1997-05-15Filed