SE425948B - Rorvalsningsdorn forsedd med inre kylning - Google Patents

Rorvalsningsdorn forsedd med inre kylning

Info

Publication number
SE425948B
SE425948B SE7801807A SE7801807A SE425948B SE 425948 B SE425948 B SE 425948B SE 7801807 A SE7801807 A SE 7801807A SE 7801807 A SE7801807 A SE 7801807A SE 425948 B SE425948 B SE 425948B
Authority
SE
Sweden
Prior art keywords
mandrel
cooling fingers
cooling
plating
pipe rolling
Prior art date
Application number
SE7801807A
Other languages
English (en)
Swedish (sv)
Other versions
SE7801807L (sv
Inventor
H Landgraf
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 SE7801807L publication Critical patent/SE7801807L/xx
Publication of SE425948B publication Critical patent/SE425948B/sv

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)
  • Metal Extraction Processes (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Heat Treatment Of Articles (AREA)
  • Chemically Coating (AREA)
  • Cooling Or The Like Of Semiconductors Or Solid State Devices (AREA)
  • Wire Processing (AREA)
  • Lead Frames For Integrated Circuits (AREA)
SE7801807A 1977-04-07 1978-02-16 Rorvalsningsdorn forsedd med inre kylning SE425948B (sv)

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
SE7801807L SE7801807L (sv) 1978-10-08
SE425948B true SE425948B (sv) 1982-11-29

Family

ID=6006193

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7801807A SE425948B (sv) 1977-04-07 1978-02-16 Rorvalsningsdorn forsedd med inre kylning

Country Status (12)

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

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

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951078A (en) * 1932-02-23 1934-03-13 Nat Tube Co Piercing point
US1950938A (en) * 1932-02-23 1934-03-13 Nat Tube Co Piercing point
GB640866A (en) * 1948-09-17 1950-08-02 Hermann Kurt Wiemer Improvements in rollers for roller mills
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
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
GB1333956A (en) 1971-04-19 1973-10-17 Nippon Kokan Kk Mandrel assembly and a method of ejecting a plug from a mandrel
SU398299A1 (ru) * 1971-10-08 1973-09-27 Институт черной металлургии Прокатный валок
US3780465A (en) * 1972-06-01 1973-12-25 Us Navy Wear resistant gun barrel and method of making the same
DE2331989A1 (de) * 1973-06-20 1975-01-23 Mannesmann Meer Ag Stopfenstange fuer kontinuierliche rohrwalzwerke
US4019846A (en) * 1975-06-05 1977-04-26 Wean United, Inc. Rolls in a briquetting machine or like machines

Also Published As

Publication number Publication date
DE2716315C2 (de) 1978-11-16
ES467878A1 (es) 1978-11-01
DE2716315B1 (de) 1978-03-30
SE7801807L (sv) 1978-10-08
RO76194A (ro) 1981-03-30
FR2386364B1 (cs) 1982-11-26
GB1592754A (en) 1981-07-08
FR2386364A1 (fr) 1978-11-03
BR7802138A (pt) 1978-11-21
IT7821363A0 (it) 1978-03-20
DD135359A5 (de) 1979-05-02
IT1093241B (it) 1985-07-19
JPS5551641B2 (cs) 1980-12-25
JPS53125953A (en) 1978-11-02
CS201511B2 (en) 1980-11-28
US4173880A (en) 1979-11-13

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