FR2163771B1 - - Google Patents

Info

Publication number
FR2163771B1
FR2163771B1 FR7245137A FR7245137A FR2163771B1 FR 2163771 B1 FR2163771 B1 FR 2163771B1 FR 7245137 A FR7245137 A FR 7245137A FR 7245137 A FR7245137 A FR 7245137A FR 2163771 B1 FR2163771 B1 FR 2163771B1
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
FR7245137A
Other languages
French (fr)
Other versions
FR2163771A1 (de
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vodafone GmbH
Original Assignee
Mannesmannroehren Werke AG
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
Application filed by Mannesmannroehren Werke AG filed Critical Mannesmannroehren Werke AG
Publication of FR2163771A1 publication Critical patent/FR2163771A1/fr
Application granted granted Critical
Publication of FR2163771B1 publication Critical patent/FR2163771B1/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
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs
    • B21B25/06—Interchanging mandrels, fixing plugs on mandrel rods or cooling during interchanging mandrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B25/00—Mandrels for metal tube rolling mills, e.g. mandrels of the types used in the methods covered by group B21B17/00; Accessories or auxiliary means therefor ; Construction of, or alloys for, mandrels or plugs

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Crushing And Grinding (AREA)
FR7245137A 1971-12-17 1972-12-13 Expired FR2163771B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE7148215 1971-12-17
DE2163818A DE2163818A1 (de) 1971-12-17 1971-12-17 Stopfen fuer rohrwalzwerk

Publications (2)

Publication Number Publication Date
FR2163771A1 FR2163771A1 (de) 1973-07-27
FR2163771B1 true FR2163771B1 (de) 1975-06-20

Family

ID=25762205

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7245137A Expired FR2163771B1 (de) 1971-12-17 1972-12-13

Country Status (6)

Country Link
US (1) US3762201A (de)
JP (1) JPS4867164A (de)
DE (1) DE2163818A1 (de)
FR (1) FR2163771B1 (de)
GB (2) GB1418687A (de)
IT (1) IT971762B (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA960885A (en) * 1972-08-02 1975-01-14 Frederick W. Kruppert Device for inserting plugs in a plug mill
FR2322674A1 (fr) * 1974-01-10 1977-04-01 Vallourec Dispositif de changement mecanique de mandrins pour laminoirs
FR2266557B1 (de) * 1974-04-05 1977-10-14 Valti Fabr Tubes Roulements
FR2282301A1 (fr) * 1974-08-22 1976-03-19 Mannesmann Roehren Werke Ag Bouchons de securite en plusieurs parties pour laminoir
US4015460A (en) * 1976-01-09 1977-04-05 Damascus Steel Casting Company Rolling mill plug assembly
FR2338093A1 (fr) * 1976-01-19 1977-08-12 Vallourec Nouveau laminoir de fabrication de tubes sans soudure et installation de fabrication de tubes sans soudure comportant un tel laminoir
US4028923A (en) * 1976-05-04 1977-06-14 Aetna-Standard Engineering Company Plug and shoe changing in piercing and reeling mills
DE2652759C3 (de) * 1976-11-16 1980-05-22 Mannesmann Ag, 4000 Duesseldorf Lösbare Verbindung zwischen einem Dorn und der Dornstange eines Schrägwalzwerkes
US4115958A (en) * 1977-02-18 1978-09-26 The Warner & Swasey Company Method of cylindrical and shoulder grinding
DE4431389C1 (de) * 1994-08-25 1995-08-10 Mannesmann Ag Verfahren und Vorrichtung zum Setzen von Stopfen an Stopfenwalzwerken

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US529910A (en) * 1894-11-27 Apparatus for the manufacture of tubing
US769709A (en) * 1901-04-03 1904-09-13 Nat Tube Co Tube-rolling mill.
US1537206A (en) * 1923-03-17 1925-05-12 Malcolm U Wikstrom Tube-rolling method and apparatus
US1931571A (en) * 1931-08-04 1933-10-24 Frank J Burns Plug bar for seamless tube mills
US1997997A (en) * 1933-03-03 1935-04-16 Diescher Tube Mills Inc Mandrel for tube rolling mills
US2635492A (en) * 1946-03-20 1953-04-21 Martin S Gettig Plug-handling mechanism for seamless tube mills
US3277687A (en) * 1963-09-09 1966-10-11 Gen Mills Inc Plug handling apparatus for seamless tube mill
BE715196A (de) * 1967-05-18 1968-09-30

Also Published As

Publication number Publication date
GB1418688A (en) 1975-12-24
JPS4867164A (de) 1973-09-13
GB1418687A (en) 1975-12-24
IT971762B (it) 1974-05-10
US3762201A (en) 1973-10-02
DE2163818A1 (de) 1973-06-20
FR2163771A1 (de) 1973-07-27

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Legal Events

Date Code Title Description
ST Notification of lapse