RU2001123772A - A method of manufacturing a rectangular longitudinal welded pipe - Google Patents

A method of manufacturing a rectangular longitudinal welded pipe

Info

Publication number
RU2001123772A
RU2001123772A RU2001123772/02A RU2001123772A RU2001123772A RU 2001123772 A RU2001123772 A RU 2001123772A RU 2001123772/02 A RU2001123772/02 A RU 2001123772/02A RU 2001123772 A RU2001123772 A RU 2001123772A RU 2001123772 A RU2001123772 A RU 2001123772A
Authority
RU
Russia
Prior art keywords
rectangular
pipe
passage
manufacturing
longitudinal welded
Prior art date
Application number
RU2001123772/02A
Other languages
Russian (ru)
Other versions
RU2208491C2 (en
Inventor
Андрей Михайлович Ламухин
Геннадий Ефимович Барабанцев
Александр Николаевич Тюляпин
Василий Леонидович Черноусов
Александр Владимирович Колобов
Валентина Константиновна Рябинкова
Виктор Валентинович Кузнецов
Владимир Сабитович Юсупов
Александр Иванович Трайно
Original Assignee
Открытое акционерное общество "Северсталь"
Filing date
Publication date
Application filed by Открытое акционерное общество "Северсталь" filed Critical Открытое акционерное общество "Северсталь"
Priority to RU2001123772A priority Critical patent/RU2208491C2/en
Priority claimed from RU2001123772A external-priority patent/RU2208491C2/en
Publication of RU2001123772A publication Critical patent/RU2001123772A/en
Application granted granted Critical
Publication of RU2208491C2 publication Critical patent/RU2208491C2/en

Links

Claims (1)

Способ изготовления прямоугольных прямошовных сварных труб, включающий их формовку из труб круглого поперечного сечения за два прохода в черновом и чистовом четырехвалковых калибрах, причем в черновом проходе формуют трубу выпуклого прямоугольного сечения, а в чистовом проходе - правильного прямоугольного сечения, отличающийся тем, что в черновом проходе трубу формуют вогнутыми валками с радиусом вогнутости R=(3,1-4,1)·A, где А - соответствующая сторона готовой прямоугольной трубы, а в чистовом проходе большие стороны прямоугольной трубы формуют вогнутыми валками с вогнутостью 0,2 - 0,4 мм, при этом меньшие стороны прямоугольной трубы формуют цилиндрическими валками.A method of manufacturing rectangular longitudinal welded pipes, including molding them from pipes of circular cross-section in two passes in a rough and finish four-roll gauge, and in the rough passage a pipe of convex rectangular section is formed, and in the finishing passage is a regular rectangular section, characterized in that in the draft the pipe passage is formed by concave rolls with a concavity radius R = (3.1-4.1) · A, where A is the corresponding side of the finished rectangular pipe, and in the finishing passage the large sides of the rectangular pipe rmuyut concave rollers concavely 0.2 - 0.4 mm, while the smaller side of the rectangular tube formed by cylindrical rollers.
RU2001123772A 2001-08-27 2001-08-27 Method for making rectangular straight-seam welded tubes RU2208491C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001123772A RU2208491C2 (en) 2001-08-27 2001-08-27 Method for making rectangular straight-seam welded tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001123772A RU2208491C2 (en) 2001-08-27 2001-08-27 Method for making rectangular straight-seam welded tubes

Publications (2)

Publication Number Publication Date
RU2001123772A true RU2001123772A (en) 2003-05-27
RU2208491C2 RU2208491C2 (en) 2003-07-20

Family

ID=29210304

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001123772A RU2208491C2 (en) 2001-08-27 2001-08-27 Method for making rectangular straight-seam welded tubes

Country Status (1)

Country Link
RU (1) RU2208491C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2568804C1 (en) * 2014-04-30 2015-11-20 Открытое акционерное общество "Российский научно-исследовательский институт трубной промышленности" (ОАО "РосНИТИ") Method of manufacturing of longitudinally welded pipes with rectangular or square cross-section

Similar Documents

Publication Publication Date Title
EP1121992A3 (en) Method of manufacturing pipe body and pipe body manufactured by the method
US7578160B2 (en) Pipe-bending machine mandrel
RU2004126230A (en) METHOD FOR PRODUCING SEAMLESS STEEL PIPES
CN102059514A (en) Processing method of small-curvature and small-angle bent pipe
RU2001123772A (en) A method of manufacturing a rectangular longitudinal welded pipe
DE50203594D1 (en) DEVICE FOR PRODUCING A TUBE
BE1001122A3 (en) LAMINATE PROFILE COMPRISING A CORRUGATED PART, METHOD FOR THE MANUFACTURE THEREOF AND INSTALLATION FOR THEIR MANUFACTURE.
RU93003680A (en) METHOD OF FORMING TIGHT-RUNNED TUBES AND STAMP FOR ITS IMPLEMENTATION
CN208025118U (en) A kind of hot rolling deformed channel steel
RU2208491C2 (en) Method for making rectangular straight-seam welded tubes
RU2009119460A (en) STAND FOR CONSTRUCTION AND METHOD OF PRODUCING PIPES STAND FOR CONSTRUCTION
KR101722693B1 (en) Manufacturing apparatus of small caliber ribbed pipe
RU2002135714A (en) METHOD FOR PRODUCING ELECTROWELDED RECTANGULAR PIPES
KR200250930Y1 (en) Block for Manufacturing Pipe
CN212096868U (en) Precast beam hogging moment bellows anti-deformation device
SU1237283A1 (en) Method of producing shaped tubes with intermittent concave and convex profile sections
RU2001104466A (en) METHOD FOR MAKING HOLLOW DETAILS WITH TAPES EQUAL STRONG WITH THE ORIGINAL PIPE
JP2731112B2 (en) Rolling method for deformed steel bars
RU98122350A (en) DORN FOR PRODUCING PIPES ON PERIODIC ROLLING MACHINES
SU1279690A1 (en) Arbor for screw broaching
RU1818167C (en) Process of manufacture of ribbed welded metal structures
RU2003100487A (en) MOLDING CELL OF A PIPELINE
KR20010003162A (en) Iron reinforcing rod and method for making the same
RU98123449A (en) CALIBRATION TOOL FOR COLD PIPE ROLLING
JPS5844884Y2 (en) Forming roll of pipe making equipment