SU567522A1 - Method of manufacturing welded tubes - Google Patents
Method of manufacturing welded tubesInfo
- 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
Links
Landscapes
- 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.
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)
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 |
-
1974
- 1974-07-08 SU SU7402042988A patent/SU567522A1/en active
Cited By (1)
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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