IT1239991B - Procedimento per la fabbricazione di tubi senza saldatura - Google Patents

Procedimento per la fabbricazione di tubi senza saldatura

Info

Publication number
IT1239991B
IT1239991B IT19951A IT1995190A IT1239991B IT 1239991 B IT1239991 B IT 1239991B IT 19951 A IT19951 A IT 19951A IT 1995190 A IT1995190 A IT 1995190A IT 1239991 B IT1239991 B IT 1239991B
Authority
IT
Italy
Prior art keywords
pipes
welding
manufacture
Prior art date
Application number
IT19951A
Other languages
English (en)
Other versions
IT9019951A0 (it
IT9019951A1 (it
Inventor
Alfred Lampe
Gheorghe Arnautu
Hermann Josef Frentzen
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 IT9019951A0 publication Critical patent/IT9019951A0/it
Publication of IT9019951A1 publication Critical patent/IT9019951A1/it
Application granted granted Critical
Publication of IT1239991B publication Critical patent/IT1239991B/it

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Metal Extraction Processes (AREA)
IT19951A 1989-04-25 1990-04-06 Procedimento per la fabbricazione di tubi senza saldatura IT1239991B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3914016A DE3914016C1 (it) 1989-04-25 1989-04-25

Publications (3)

Publication Number Publication Date
IT9019951A0 IT9019951A0 (it) 1990-04-06
IT9019951A1 IT9019951A1 (it) 1991-10-06
IT1239991B true IT1239991B (it) 1993-11-27

Family

ID=6379651

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19951A IT1239991B (it) 1989-04-25 1990-04-06 Procedimento per la fabbricazione di tubi senza saldatura

Country Status (7)

Country Link
US (1) US5156035A (it)
JP (1) JPH02299709A (it)
CA (1) CA2015124A1 (it)
DE (1) DE3914016C1 (it)
FR (1) FR2646112B1 (it)
IT (1) IT1239991B (it)
RU (1) RU1838011C (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0476793B1 (de) * 1990-09-19 1995-04-19 MANNESMANN Aktiengesellschaft Walzwerk zum Strecken von Hohlkörpern auf einem Dorn
US5218851A (en) * 1991-06-21 1993-06-15 Kawasaki Steel Corporation Mandrel mill capable of preventing stripping miss
JP2897652B2 (ja) * 1994-09-05 1999-05-31 住友金属工業株式会社 マンドレルミルおよびそれを用いた管圧延方法
CA2550913C (en) * 2005-06-28 2009-01-13 Sumitomo Metal Industries, Ltd. Cold rolling process for metal tubes
EP1738839B1 (en) * 2005-06-28 2009-08-26 Sumitomo Metal Industries, Ltd. Cold rolling process for metal tubes
CN103447303B (zh) * 2013-08-20 2016-04-27 莱芜钢铁集团有限公司 一种热轧圆钢用成品孔型

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190911496A (en) * 1909-05-14 1911-05-25 Mathias Peters Rolling Mill for Producing Tubes.
US988834A (en) * 1909-11-12 1911-04-04 Shelby Steel Tube Company Tube-rolling.
US1283692A (en) * 1917-12-27 1918-11-05 Guido Debenedetti Manufacturing of section-tubes.
US2083698A (en) * 1934-02-17 1937-06-15 William H Engelbertz Push bench method and apparatus
US2599847A (en) * 1950-02-09 1952-06-10 Nat Tube Co Entry guide for seamless tube plug rolling mills
US3661005A (en) * 1969-10-29 1972-05-09 Mannesmann Ag Method for producing seamless tubes with small diameters
JPS5856648B2 (ja) * 1979-01-31 1983-12-16 新日本製鐵株式会社 管の連続圧延法
JPS59286B2 (ja) * 1979-08-20 1984-01-06 新日本製鐵株式会社 管の連続圧延法
JPS5850112A (ja) * 1981-09-22 1983-03-24 Nippon Steel Corp 管圧延法
JPS6021803B2 (ja) * 1981-12-29 1985-05-29 川崎製鉄株式会社 継目無管の連続圧延機
JPS6046805A (ja) * 1983-08-26 1985-03-13 Nippon Steel Corp マンドレルミルの制御法
JPH0714524B2 (ja) * 1987-06-26 1995-02-22 川崎製鉄株式会社 管の連続延伸圧延方法およびその圧延機
JPH0729125B2 (ja) * 1987-07-17 1995-04-05 新日本製鐵株式会社 鋼管の冷間サイジング法およびそのための圧延機

Also Published As

Publication number Publication date
JPH02299709A (ja) 1990-12-12
FR2646112A1 (fr) 1990-10-26
US5156035A (en) 1992-10-20
CA2015124A1 (en) 1990-10-25
RU1838011C (ru) 1993-08-30
IT9019951A0 (it) 1990-04-06
FR2646112B1 (fr) 1995-10-27
DE3914016C1 (it) 1990-07-26
IT9019951A1 (it) 1991-10-06

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19990331