SU385645A1 - - Google Patents

Info

Publication number
SU385645A1
SU385645A1 SU1688590A SU1688590A SU385645A1 SU 385645 A1 SU385645 A1 SU 385645A1 SU 1688590 A SU1688590 A SU 1688590A SU 1688590 A SU1688590 A SU 1688590A SU 385645 A1 SU385645 A1 SU 385645A1
Authority
SU
USSR - Soviet Union
Prior art keywords
pipes
mandrel
pipe
editing
pressure
Prior art date
Application number
SU1688590A
Other languages
Russian (ru)
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 filed Critical
Priority to SU1688590A priority Critical patent/SU385645A1/ru
Application granted granted Critical
Publication of SU385645A1 publication Critical patent/SU385645A1/ru

Links

Landscapes

  • Bending Of Plates, Rods, And Pipes (AREA)

Description

СПОСОБ ПРАВКИ ОСОБО ТОНКОСТЕННЫХ ТРУБ ОБКАТКОЙMETHOD FOR THE EDITION OF ESPECIALLY THIN-WALL PIPES BY ROUND

1one

Изобретение относитс  к области обработки труб давлением, преимущественно к правке особо тонкостенных труб.The invention relates to the field of pressure treatment of pipes, mainly to straightening of particularly thin-walled pipes.

Известен способ правки особо тонкостенных труб обкаткой роликами на оправке. Такой способ не обеспечивает качественную правку труб с отношением диаметра к толщине стенки более 250.There is a method of editing particularly thin-walled pipes run-in rollers on the mandrel. This method does not provide quality editing of pipes with a ratio of diameter to wall thickness of more than 250.

По предлагаемому способу с целью обеспечени  правки особо тонкостенных труб одновременно с обкаткой на внутреннюю поверхность трубы воздействуют давлением %жидкости , вводимой в полость между оправкой и внутренней поверхностью трубы.According to the proposed method, in order to provide straightening of particularly thin-walled pipes, simultaneously with running-in, the internal surface of the pipe is affected by the pressure of% liquid introduced into the cavity between the mandrel and the internal surface of the pipe.

Па чертеже изображено устройство дл  осуществлени  данного способа правки.Pa the drawing shows a device for implementing this method of editing.

Правку труб производ т следующим образом . Па трубе-оправке 1 по концам закреплены шайбой 2 и гайкой 3 резиновые уплотнени  4. Выпр мл емую трубу 5 надевают на трубу-оправку 1 по уплотнени м 4 и снаружи зажимают цанговыми патронами 6. Цаиговые патроны закреплены в неподвижной 7 и подвижной 8 тележках. В трубе-оправке / посередине просверлены отверсти  дл  подачи жидкости внутрь выпр мл емой трубы. Жидкость под давлением подаетс  через специальный клапан 9. После создани  давлени  жидкости Б выпр мл емой трубе клапан закрываетс . Правку трубы производ т вращающимс  барабаном 10, в котором закреплены косо расположенные ролики 11. Правка труб осуществл етс  знакопеременным изгибом и знакопеременным сплющиванием на гидропластовой оправке. Правку данным способом можно совместить с гидроиспытани ми.Editing of pipes is made as follows. At the ends of the tube-mandrel 1, the washers 2 and the nut 3 are secured with rubber seals 4. The straightened pipe 5 is put on the mandrel-pipe 1 by seals 4 and is clamped outside by the collet chuck 6. The zipper cartridges are fixed in the fixed 7 and movable 8 carts. Holes are drilled in the mandrel / middle pipe for supplying fluid to the inside of the tube being straightened. The pressure fluid is supplied through a special valve 9. After the pressure B of the straightened tube is created, the valve closes. The tube is edited by a rotating drum 10, in which obliquely arranged rollers 11 are fixed. The tubes are straightened by an alternating bend and alternating flattening on a hydroplastic mandrel. Editing in this way can be combined with hydrotesting.

15Предмет изобретени 15 of the invention

Способ правки особо тонкостенных труб обкаткой роликами на оправке, отличающийс  тем, что, с целью обеспечени  правки труб 20 с отношением диаметра к толщине стенки более 250, одновременно с обкаткой на внутреннюю поверхность трубы воздействуют давлением жидкости, вводимой в полость между оправкой « внутренней поверхностью трубы.A method of straightening particularly thin-walled pipes with rollers on a mandrel, characterized in that, in order to provide straightening of pipes 20 with a ratio of diameter to wall thickness of more than 250, simultaneously with the rolling in, the inner surface of the pipe is influenced by the pressure of the fluid introduced into the cavity .

SU1688590A 1971-08-09 1971-08-09 SU385645A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1688590A SU385645A1 (en) 1971-08-09 1971-08-09

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1688590A SU385645A1 (en) 1971-08-09 1971-08-09

Publications (1)

Publication Number Publication Date
SU385645A1 true SU385645A1 (en) 1973-06-14

Family

ID=20485217

Family Applications (1)

Application Number Title Priority Date Filing Date
SU1688590A SU385645A1 (en) 1971-08-09 1971-08-09

Country Status (1)

Country Link
SU (1) SU385645A1 (en)

Similar Documents

Publication Publication Date Title
EP0037177A3 (en) Device for hydraulically expanding tubes
ES403299A1 (en) Multi-pass method and apparatus for cold-drawing of metallic tubes
US2440725A (en) Method of making composite plastic lined metal pipe
GB1328483A (en) Apparatus and process for shaping tubular metallic components
SU385645A1 (en)
GB1282062A (en) A method and apparatus for manufacturing a biaxially oriented cylindrical film
US4134287A (en) Method for mechanical removal of tensile stresses in a tube which has been expanded in a support
ATA563780A (en) PIPE ROLLING MILL AND METHOD FOR THE PRODUCTION OF FINISHED TUBES, REDUCED IN DIAMETER AND IN THE WALL THICKNESS, FROM TUBE PIPES
FR2308436A1 (en) Avoiding carbon deposits during annealing, from lubricants - in the bore of drawn copper tubes, by sweeping with nitrogen
DE697849C (en) Process for the production of corrugated pipes
US2960141A (en) Hydrofolding of metal
US3458106A (en) Vacuum supply for internal pipeline line-up clamp seal space
SU1820537A1 (en) Method of cold rolling of polyhedral tubes
ATE35231T1 (en) DEVICE FOR REDUCING THE WALL THICKNESS OF A PIPE BY ROLLING.
US1465073A (en) Process of producing seamless internally-ribbed tubes
ATE13745T1 (en) PROCESSES AND EQUIPMENT FOR ROLLING IN PIPES WITH COATED INSIDE.
US3537289A (en) Method of producing webbed steel pipes
US3243982A (en) Cold tube bending apparatus
SU416122A1 (en)
GB1074958A (en) Process and mill for rolling hollow bodies
JPS57112911A (en) Working device for outer and inner surface of metallic pipe
JPS5594131A (en) Leakage test method of and apparatus for cylindrical circumferential joint
SU426737A1 (en) METHOD FOR ROLLING A PIPE ::.
ES484879A1 (en) Method and machine for spin forming thin-walled seamless tubular elbows.
JPS62292215A (en) Grooving device for metal pipe inner face