METHOD FOR PRODUCTION OF PIPES WITH PROFILED TIPS Russian patent published in 2010 - IPC B21D51/10 B21D53/08 

Abstract RU 2380188 C1

FIELD: technological processes.

SUBSTANCE: invention is related to the field of metal plastic working by pressure, in particular to processes of production of heat exchange pipes with profiled tips produced with application of effect from localised directed plastic deformation of pipe material. Method includes straightening, cutting as per measure, cleaning of external surface of pipe ends. Then expanding- calibration of pipe end is carried out by means of rigid puncheon. Radial clamping within the limits of calibrated section length part is carried out with provision of cylindrical section of crippling. Annular ledge is formed in two stages by preliminary and final filling of matrix finishing gravure volume with pipe material. End of pipe is installed in cavity of split matrix by external conical section opposite to finishing gravure of matrix. Split matrix comprises finishing gravure in the form of annular groove of trapezoid cross section and preliminary gravure in the form of annular groove. Further shaping of annular ledge is carried out by means of burnishing.

EFFECT: invention provides for production of heat exchange pipes with profiled tips that do not depend on geometrical dimensions of pipe in transverse direction and grades of processed materials.

3 cl, 9 dwg

Similar patents RU2380188C1

Title Year Author Number
METHOD OF PIPES RECEIVING WITH PROFILED EDGE LINES 2008
  • Kozij Sof'Ja Sergeevna
RU2379147C1
METHOD FOR OBTAINING HEAT-EXCHANGE TUBES WITH SHAPED ENDS 2008
  • Kozij Sof'Ja Sergeevna
RU2387515C1
METHOD TO PRODUCE HEAT EXCHANGE TUBES WITH SHAPED TIPS 2008
  • Kozij Sof'Ja Sergeevna
RU2385199C2
METHOD FOR REPAIR OF TUBE BUNDLES IN HEAT-EXCHANGE DEVICES 2008
  • Kozij Sof'Ja Sergeevna
RU2385790C2
PROCEDURE FOR PRODUCTION OF HEAT-EXCHANGING PIPES WITH SHAPED TIPS 2008
  • Kozij Sof'Ja Sergeevna
  • Batraev Gennadij Andreevich
  • Kozij Sergej Ivanovich
RU2397837C2
PROCEDURE FOR PRODUCTION OF PIPES WITH PROFILED EDGE LINES 2009
  • Grechnikov Fedor Vasil'Evich
  • Kozij Sof'Ja Sergeevna
  • Kozij Sergej Ivanovich
  • Batraev Andrej Gennad'Evich
RU2395362C1
METHOD OF PRODUCING HEAT EXCHANGE PIPES WITH PROFILED EDGES 2008
  • Kozij Sof'Ja Sergeevna
  • Kozij Sergej Ivanovich
  • Batraev Gennadij Andreevich
RU2401174C2
METHOD OF PRODUCING HEAT EXCHANGE TUBES WITH SHAPED HEAVY ENDS 2010
  • Kozij Sof'Ja Sergeevna
  • Kozij Sergej Ivanovich
RU2430804C1
METHOD OF PRODUCING HEAT EXCHANGE TUBES WITH SHAPED TIPS 2010
  • Kozij Sof'Ja Sergeevna
  • Kozij Sergej Ivanovich
RU2445183C2
METHOD OF FIXING HEAT EXCHANGE TUBES IN TUBE PLATES 2011
  • Kozij Sergej Ivanovich
  • Kozij Sof'Ja Sergeevna
RU2484911C2

RU 2 380 188 C1

Authors

Kozij Sof'Ja Sergeevna

Dates

2010-01-27Published

2008-05-12Filed