FR2386364A1 - Mandrin de laminage de tubes refroidi interieurement - Google Patents

Mandrin de laminage de tubes refroidi interieurement

Info

Publication number
FR2386364A1
FR2386364A1 FR7807624A FR7807624A FR2386364A1 FR 2386364 A1 FR2386364 A1 FR 2386364A1 FR 7807624 A FR7807624 A FR 7807624A FR 7807624 A FR7807624 A FR 7807624A FR 2386364 A1 FR2386364 A1 FR 2386364A1
Authority
FR
France
Prior art keywords
tube rolling
internally cooled
cooled tube
rolling chuck
mandrel
Prior art date
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.)
Granted
Application number
FR7807624A
Other languages
English (en)
Other versions
FR2386364B1 (fr
Inventor
Helmut Landgraf
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
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of FR2386364A1 publication Critical patent/FR2386364A1/fr
Application granted granted Critical
Publication of FR2386364B1 publication Critical patent/FR2386364B1/fr
Granted 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
    • B21B25/04—Cooling or lubricating mandrels during operation

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Chemically Coating (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Heat Treatment Of Articles (AREA)
  • Metal Extraction Processes (AREA)
  • Wire Processing (AREA)
  • Lead Frames For Integrated Circuits (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)

Abstract

L'invention concerne un mandrin de laminage de tubes refroidi intérieurement. Au moins dans la partie où l'on désire un abaissement de température sont prévus des doigts de refroidissement 2 en matière bonne conductrice de la chaleur, insérés radialement, distribués régulièrement sur la circonférence et la longueur du mandrin et dont la surface extérieure de sortie est recouverte d'un placage soudé. L'invention s'applique aux laminoirs de tubes à pas de pèlerin.
FR7807624A 1977-04-07 1978-03-16 Mandrin de laminage de tubes refroidi interieurement Granted FR2386364A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2716315A DE2716315C2 (de) 1977-04-07 1977-04-07 Innengekühlter Rohrwalzdorn

Publications (2)

Publication Number Publication Date
FR2386364A1 true FR2386364A1 (fr) 1978-11-03
FR2386364B1 FR2386364B1 (fr) 1982-11-26

Family

ID=6006193

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807624A Granted FR2386364A1 (fr) 1977-04-07 1978-03-16 Mandrin de laminage de tubes refroidi interieurement

Country Status (12)

Country Link
US (1) US4173880A (fr)
JP (1) JPS53125953A (fr)
BR (1) BR7802138A (fr)
CS (1) CS201511B2 (fr)
DD (1) DD135359A5 (fr)
DE (1) DE2716315C2 (fr)
ES (1) ES467878A1 (fr)
FR (1) FR2386364A1 (fr)
GB (1) GB1592754A (fr)
IT (1) IT1093241B (fr)
RO (1) RO76194A (fr)
SE (1) SE425948B (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3429524A1 (de) * 1984-08-10 1986-02-20 Kocks Technik Gmbh & Co, 4010 Hilden Dornstange oder stopfen fuer eine walzstrasse zum herstellen nahtloser rohre
DE102007021999A1 (de) * 2006-05-16 2007-11-22 Sms Meer Gmbh Verfahren zum Warmwalzen nahtloser Rohre auf einem Innenwerkzeug und Innenwerkzeug
CN102091719A (zh) * 2010-12-07 2011-06-15 宝钢集团常州轧辊制造公司 连轧管机用限动芯棒及其制造方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950938A (en) * 1932-02-23 1934-03-13 Nat Tube Co Piercing point
US1951078A (en) * 1932-02-23 1934-03-13 Nat Tube Co Piercing point
FR1000909A (fr) * 1949-11-30 1952-02-18 Perfectionnements aux échangeurs de chaleur
GB675604A (en) * 1950-01-06 1952-07-16 David Dalin Extended surface heat exchanger
US3780465A (en) * 1972-06-01 1973-12-25 Us Navy Wear resistant gun barrel and method of making the same
FR2234052A1 (fr) * 1973-06-20 1975-01-17 Mannesmann Meer Ag

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB640866A (en) * 1948-09-17 1950-08-02 Hermann Kurt Wiemer Improvements in rollers for roller mills
US2972472A (en) * 1956-06-11 1961-02-21 Armstrong Cork Co Heat transfer roll
US3135319A (en) * 1959-12-24 1964-06-02 Emery B Richards Leveling roll
FR1272096A (fr) * 1960-08-08 1961-09-22 Csepeli Csogyar Laminoir à pas de pélerin, avec mandrin refroidi pour la fabrication de tubes
US3604237A (en) * 1967-04-03 1971-09-14 Takao Kawanami Work rolls and cooling method thereof
SU398299A1 (ru) * 1971-10-08 1973-09-27 Институт черной металлургии Прокатный валок
US4019846A (en) * 1975-06-05 1977-04-26 Wean United, Inc. Rolls in a briquetting machine or like machines

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950938A (en) * 1932-02-23 1934-03-13 Nat Tube Co Piercing point
US1951078A (en) * 1932-02-23 1934-03-13 Nat Tube Co Piercing point
FR1000909A (fr) * 1949-11-30 1952-02-18 Perfectionnements aux échangeurs de chaleur
GB675604A (en) * 1950-01-06 1952-07-16 David Dalin Extended surface heat exchanger
US3780465A (en) * 1972-06-01 1973-12-25 Us Navy Wear resistant gun barrel and method of making the same
FR2234052A1 (fr) * 1973-06-20 1975-01-17 Mannesmann Meer Ag

Also Published As

Publication number Publication date
FR2386364B1 (fr) 1982-11-26
SE7801807L (sv) 1978-10-08
US4173880A (en) 1979-11-13
IT1093241B (it) 1985-07-19
IT7821363A0 (it) 1978-03-20
DE2716315C2 (de) 1978-11-16
JPS5551641B2 (fr) 1980-12-25
GB1592754A (en) 1981-07-08
BR7802138A (pt) 1978-11-21
ES467878A1 (es) 1978-11-01
JPS53125953A (en) 1978-11-02
CS201511B2 (en) 1980-11-28
SE425948B (sv) 1982-11-29
DD135359A5 (de) 1979-05-02
RO76194A (fr) 1981-03-30
DE2716315B1 (de) 1978-03-30

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Legal Events

Date Code Title Description
ST Notification of lapse