SU567522A1 - Method of manufacturing welded tubes - Google Patents

Method of manufacturing welded tubes

Info

Publication number
SU567522A1
SU567522A1 SU7402042988A SU2042988A SU567522A1 SU 567522 A1 SU567522 A1 SU 567522A1 SU 7402042988 A SU7402042988 A SU 7402042988A SU 2042988 A SU2042988 A SU 2042988A SU 567522 A1 SU567522 A1 SU 567522A1
Authority
SU
USSR - Soviet Union
Prior art keywords
welded tubes
manufacturing welded
welding
strip
pipes
Prior art date
Application number
SU7402042988A
Other languages
Russian (ru)
Inventor
Александр Александрович Ромашов
Владимир Яковлевич Иванцов
Рудольф Маркович Шпигельман
Вадим Анатольевич Вердеревский
Игорь Вячеславович Лунин
Лев Николаевич Лоховинин
Александр Николаевич Медведев
Original Assignee
Научно-Исследовательский Институт Трубной Промышленности
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 Научно-Исследовательский Институт Трубной Промышленности filed Critical Научно-Исследовательский Институт Трубной Промышленности
Priority to SU7402042988A priority Critical patent/SU567522A1/en
Application granted granted Critical
Publication of SU567522A1 publication Critical patent/SU567522A1/en

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  • Heat Treatment Of Articles (AREA)
  • Heat Treatment Of Steel (AREA)

Description

(54) СПОСОВ ПРОИЗВОДСТВА СВАРНЫХ ТРУБ(54) WELD PUBLIC MANUFACTURES

1one

Изобретение относитс  к полученшо трубчатых изделий и может быть иснользовано в металлургической промышленное.- .,ти при производстве электросварных труб любой геометрии.-5The invention relates to the obtained tubular products and can be used in the metallurgical industry .-., Ty in the manufacture of electric-welded pipes of any geometry. -5

Известен способ изготовлени  сварных труб радиочастотной сваркой, по которому подогрета  в печи-до температуры ЗОО- 980°С заготовка (штрипс) формуетс  в трех клет х, после чего производитс  ин- ю дукционный догрев кромок до сварочной температуры и сварка их давлением 1J.A known method of making welded pipes by radiofrequency welding, by which the billet (strip) is heated in a furnace-to a temperature of 9,400 ° C is molded in three cells, after which the injection heating of the edges to the welding temperature and welding them by pressure 1J is performed.

Известный способ производства труб предполагает нагрев штрипса в йечи до температур , близких к нижнему пределу темпера- 15 турного интервала (дл  металлов и сплавов с нУ13кой температурой плавлени , например алюминий, медь и их сплавы) и до температур близких к верхнему пределу температурного интервала (дл  железа и его сплавов). В по- 20 следнем случае стальна  полоса дл  значитель. ного повышени  пластичности нагреваетс  выше 540°С (критическа  точка) что со- провождаетс  образованием окалины.The known method of pipe production involves heating the strip in Yech to temperatures close to the lower limit of the temperature range (for metals and alloys with a lower melting point, such as aluminum, copper, and their alloys) and to temperatures close to the upper limit of the temperature range (for iron and its alloys). In the latter case, the steel strip is significant. To increase plasticity, it is heated above 540 ° C (critical point), which is accompanied by the formation of scale.

Предварительный нагрев штрипса перед 25Strip preheat before 25

формовкой позвол ет производить сварные трубы из высокопрочных углеродистых и легированных сталей, склонных к образсванию закалочных структур и гор чих трещин ири охлаждении на воздухе в обычных урлови х формовки и сварки.forming allows to produce welded pipes from high-strength carbon and alloyed steels, which are prone to forming quenching structures and hot cracks and air cooling in conventional molding and welding.

Однако дл  получени  высоких механических свойств труб из всех марок стали, изготовленных по данному способу, требуетс  специальна  термообработка по режи му зшсалки с отпуском.:However, to obtain high mechanical properties of pipes from all steel grades manufactured by this method, a special heat treatment is required for tempering slippers:

Наиболее близким к изобретению техническим решением  вл етс  способ производства сварных труб, nOi кото.ромуКро ки сформованной.трубной заготовки подвергают предварительному подогреву, а затем окончательно догревают их до сварочной температуры с последующей сваркой давлением 2.The closest technical solution to the invention is the method of producing welded pipes, the nOi of which of the molded pipe. The billet is preheated and then finally heated to the welding temperature followed by pressure welding 2.

Однако, использу  известный способ, нелзь  получить необходимый уровень пластичности металла шва и зоны a-epMHHecKOfo вли ни  при высоком уровне механических свойств основного металла, из-за чего ка чество труб ухудшаетс .However, using the known method, it is impossible to obtain the required level of ductility of the weld metal and the a-epMHHKOKOfo zone with a high level of mechanical properties of the base metal, due to which the quality of the pipes deteriorates.

SU7402042988A 1974-07-08 1974-07-08 Method of manufacturing welded tubes SU567522A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU7402042988A SU567522A1 (en) 1974-07-08 1974-07-08 Method of manufacturing welded tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7402042988A SU567522A1 (en) 1974-07-08 1974-07-08 Method of manufacturing welded tubes

Publications (1)

Publication Number Publication Date
SU567522A1 true SU567522A1 (en) 1977-08-05

Family

ID=20590673

Family Applications (1)

Application Number Title Priority Date Filing Date
SU7402042988A SU567522A1 (en) 1974-07-08 1974-07-08 Method of manufacturing welded tubes

Country Status (1)

Country Link
SU (1) SU567522A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2798180C2 (en) * 2013-03-14 2023-06-16 Тенарис Койлд Тьюбз, ЛЛК High-quality material for flexible long-dimensional pipes and method for its manufacture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2798180C2 (en) * 2013-03-14 2023-06-16 Тенарис Койлд Тьюбз, ЛЛК High-quality material for flexible long-dimensional pipes and method for its manufacture

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