FR870169A - - Google Patents

Info

Publication number
FR870169A
FR870169A FR870169DA FR870169A FR 870169 A FR870169 A FR 870169A FR 870169D A FR870169D A FR 870169DA FR 870169 A FR870169 A FR 870169A
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.)
Publication date
Application granted granted Critical
Publication of FR870169A publication Critical patent/FR870169A/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C45/00—Separating mandrels from work or vice versa
    • 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
    • B21B19/02—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 diagonally to the axis of the work, e.g. "cross" tube-rolling ; Diescher mills, Stiefel disc piercers or Stiefel rotary piercers
    • B21B19/06—Rolling hollow basic material, e.g. Assel mills

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
FR870169D 1938-12-10 Expired FR870169A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM143597D DE712585C (de) 1938-12-10 1938-12-10 Maschine zum Abwalzen von kalt ueber die Stange gezogenen Rohren fuer eine Anlage

Publications (1)

Publication Number Publication Date
FR870169A true FR870169A (ja) 1942-03-04

Family

ID=7335338

Family Applications (1)

Application Number Title Priority Date Filing Date
FR870169D Expired FR870169A (ja) 1938-12-10

Country Status (2)

Country Link
DE (1) DE712585C (ja)
FR (1) FR870169A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3148498C2 (de) * 1981-12-08 1986-06-05 Esser-Brieden GmbH & Co KG, 4788 Warstein Verfahren zur Herstellung eines doppelwandigen Rohres für den Feststofftransport

Also Published As

Publication number Publication date
DE712585C (de) 1941-10-22

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