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RU92004380A - METHOD FOR LONGITUDINAL ROLLING OF SEAMLESS PIPES - Google Patents

METHOD FOR LONGITUDINAL ROLLING OF SEAMLESS PIPES

Info

Publication number
RU92004380A
RU92004380A RU92004380/02A RU92004380A RU92004380A RU 92004380 A RU92004380 A RU 92004380A RU 92004380/02 A RU92004380/02 A RU 92004380/02A RU 92004380 A RU92004380 A RU 92004380A RU 92004380 A RU92004380 A RU 92004380A
Authority
RU
Russia
Prior art keywords
rolling
pipe
pass
wall thickness
along
Prior art date
Application number
RU92004380/02A
Other languages
Russian (ru)
Other versions
RU2097155C1 (en
Inventor
Хайнрих Роде Йоханн
Шифферингс Буркхарт
Кюммерлинг Рольф
Воксен Йохен
Хайнц Хойслер Карл
Original Assignee
Маннесманн Аг
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
Priority claimed from DE4138178A external-priority patent/DE4138178A1/en
Application filed by Маннесманн Аг filed Critical Маннесманн Аг
Publication of RU92004380A publication Critical patent/RU92004380A/en
Application granted granted Critical
Publication of RU2097155C1 publication Critical patent/RU2097155C1/en

Links

Claims (1)

Способ продольной прокатки бесшовных стальных труб в непрерывном процессе при помощи оправки в многоклетьевой прокатной линии. Валки последовательно расположенных клетей установлены со взаимным наклоном. В первом из двух последовательных проходов прокатки по дну калибра происходит уменьшение толщины стенки, соответствующее или слегка меньшее этой толщины. Во втором проходе зону боковых поверхностей первого прохода обжимают по дну калибра для второго прохода до толщины стенки готовой трубы. Приложением к трубе регулируемой силы натяжения между проходами прокатки уменьшают увеличение периметра трубы, вызванное ее уширением, путем вытяжки трубы вдоль оси без уменьшения толщины стенок. При этом при минимально возможном числе прокатных клетей достигается высокая вытяжка для получения сдвоенной длины труб.Method for longitudinal rolling of seamless steel pipes in a continuous process using a mandrel in a multi-stand rolling line. The rolls of successive stands are set with a mutual inclination. In the first of two consecutive rolling passes along the bottom of the gauge, the wall thickness decreases, corresponding to or slightly less than this thickness. In the second pass, the area of the side surfaces of the first pass is crimped along the bottom of the gauge for the second pass to the wall thickness of the finished pipe. An application to the pipe of an adjustable tension force between the rolling passes reduces the increase in the perimeter of the pipe caused by its broadening, by drawing the pipe along the axis without reducing the wall thickness. At the same time, with the minimum possible number of rolling stands, a high extraction is achieved to obtain double the length of the pipes.
RU9292004380A 1991-11-15 1992-11-13 Method of lengthwise continuous rolling of seamless tubes RU2097155C1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP4138178.5 1991-11-15
DE4138178A DE4138178A1 (en) 1991-11-15 1991-11-15 METHOD FOR LENGTH ROLLING SEAMLESS TUBES

Publications (2)

Publication Number Publication Date
RU92004380A true RU92004380A (en) 1996-04-10
RU2097155C1 RU2097155C1 (en) 1997-11-27

Family

ID=6445205

Family Applications (1)

Application Number Title Priority Date Filing Date
RU9292004380A RU2097155C1 (en) 1991-11-15 1992-11-13 Method of lengthwise continuous rolling of seamless tubes

Country Status (7)

Country Link
US (1) US5357773A (en)
EP (1) EP0542387B1 (en)
JP (1) JPH08243B2 (en)
AT (1) ATE111788T1 (en)
CZ (1) CZ283112B6 (en)
DE (2) DE4138178A1 (en)
RU (1) RU2097155C1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4213276C2 (en) * 1992-04-16 1996-05-23 Mannesmann Ag Process for producing seamless pipes using the plug rolling process
RU2271885C2 (en) * 2004-06-02 2006-03-20 ОАО "Челябинский трубопрокатный завод" Tube rolling method in plant with automatic mill
RU2259242C1 (en) * 2004-06-15 2005-08-27 Стазаев Владимир Николаевич Wire production method

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1858990A (en) * 1928-04-16 1932-05-17 Globe Steel Tubes Co Method of and means for rolling seamless tubing
US3392565A (en) * 1965-02-15 1968-07-16 Blaw Knox Co Manufacture of seamless tubing
US4002048A (en) * 1975-12-19 1977-01-11 Aetna-Standard Engineering Company Method of stretch reducing of tubular stock
GB1557872A (en) * 1976-09-15 1979-12-12 Shevchenko A A Others method of continuous tube rolling and rolling mill therefor
JPS5747517A (en) * 1980-09-04 1982-03-18 Ishikawajima Harima Heavy Ind Co Ltd Method and apparatus for controlling rolling speed of mandrel mill
IT1168096B (en) * 1981-06-11 1987-05-20 Innocenti Santeustacchio Spa CONTINUOUS CROSS-CAGE ROLLING MACHINE FOR THE PRODUCTION OF PIPES WITHOUT WELDING
JPS59104207A (en) * 1982-12-08 1984-06-16 Kawasaki Steel Corp Method for controlling elongation length of steel pipe in mandrel mill
JPS6099423A (en) * 1983-11-02 1985-06-03 Kawasaki Steel Corp Continuous stretching and rolling method for pipes
JPH0714524B2 (en) * 1987-06-26 1995-02-22 川崎製鉄株式会社 Method for continuously stretching and rolling tube and rolling machine therefor

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