FR1574941A - - Google Patents

Info

Publication number
FR1574941A
FR1574941A FR1574941DA FR1574941A FR 1574941 A FR1574941 A FR 1574941A FR 1574941D A FR1574941D A FR 1574941DA FR 1574941 A FR1574941 A FR 1574941A
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19681752078 external-priority patent/DE1752078A1/de
Priority claimed from DE19681752116 external-priority patent/DE1752116A1/de
Application filed filed Critical
Application granted granted Critical
Publication of FR1574941A publication Critical patent/FR1574941A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
    • B21B19/12—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
    • B21B19/14—Rolling tubes by means of additional rollers arranged inside the tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
FR1574941D 1967-06-28 1968-06-28 Expired FR1574941A (cs)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEM0074544 1967-06-28
DE19681752078 DE1752078A1 (de) 1968-03-30 1968-03-30 Verfahren zum Herstellen nahtloser Stahlrohre grossen Durchmessers
DE19681752116 DE1752116A1 (de) 1968-04-05 1968-04-05 Verfahren und Vorrichtung zum Herstellen nahtloser Stahlrohre

Publications (1)

Publication Number Publication Date
FR1574941A true FR1574941A (cs) 1969-07-18

Family

ID=27181138

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1574941D Expired FR1574941A (cs) 1967-06-28 1968-06-28

Country Status (3)

Country Link
BE (1) BE717325A (cs)
FR (1) FR1574941A (cs)
LU (1) LU56343A1 (cs)

Also Published As

Publication number Publication date
BE717325A (cs) 1968-12-02
LU56343A1 (cs) 1968-10-04

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Legal Events

Date Code Title Description
ST Notification of lapse