RU2014133254A - METHOD OF ROLLING PIPES WITH THERMOMECHANICAL PROCESSING - Google Patents
METHOD OF ROLLING PIPES WITH THERMOMECHANICAL PROCESSING Download PDFInfo
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- RU2014133254A RU2014133254A RU2014133254A RU2014133254A RU2014133254A RU 2014133254 A RU2014133254 A RU 2014133254A RU 2014133254 A RU2014133254 A RU 2014133254A RU 2014133254 A RU2014133254 A RU 2014133254A RU 2014133254 A RU2014133254 A RU 2014133254A
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- deformation
- carried out
- heating
- temperature
- induction heating
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- Heat Treatment Of Steel (AREA)
Abstract
1. Способ прокатки труб с термомеханической обработкой, включающий нагрев трубной заготовки, предварительную деформацию, подогрев, окончательную деформацию, охлаждение, отличающийся тем, что нагрев трубной заготовки производят до температуры 1150-1300°C, предварительную деформацию осуществляют с суммарной степенью радиальной деформации не менее 70%, степень радиальной деформации на каждом этапе деформирования после прошивки составляет не более 35%, подогрев под окончательную деформацию проводят до температуры 850-1000°C после ускоренного индукционного нагрева, при этом окончательную деформацию проводят в калибровочном или редукционном стане не более чем через 5 секунд после ускоренного индукционного нагрева, а охлаждение осуществляют на воздухе.2. Способ по п. 1, отличающийся тем, что ускоренный индукционный нагрев осуществляют при температуре 700-880°C.1. A method of rolling pipes with thermomechanical treatment, including heating the tube stock, pre-deformation, heating, final deformation, cooling, characterized in that the tube preform is heated to a temperature of 1150-1300 ° C, the preliminary deformation is carried out with a total degree of radial deformation of not less than 70%, the degree of radial deformation at each stage of deformation after flashing is no more than 35%, heating under the final deformation is carried out to a temperature of 850-1000 ° C after accelerated induction heating, while the final deformation is carried out in a calibration or reduction mill no more than 5 seconds after accelerated induction heating, and cooling is carried out in air. 2. The method according to claim 1, characterized in that the accelerated induction heating is carried out at a temperature of 700-880 ° C.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2014133254/02A RU2580773C2 (en) | 2014-08-12 | 2014-08-12 | Tube rolling method with thermomechanical treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2014133254/02A RU2580773C2 (en) | 2014-08-12 | 2014-08-12 | Tube rolling method with thermomechanical treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2014133254A true RU2014133254A (en) | 2016-02-27 |
| RU2580773C2 RU2580773C2 (en) | 2016-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2014133254/02A RU2580773C2 (en) | 2014-08-12 | 2014-08-12 | Tube rolling method with thermomechanical treatment |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2580773C2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2291903C1 (en) * | 2005-07-15 | 2007-01-20 | ОАО "Синарский трубный завод" | Method for pipe rolling using thermomechanical processing |
| RU2353671C2 (en) * | 2007-06-15 | 2009-04-27 | Открытое акционерное общество "Вятка" | Method for production of thermomechanically treated hot rolled pipes |
| JP5088631B2 (en) * | 2008-09-17 | 2012-12-05 | 新日本製鐵株式会社 | Machine-structured steel pipe with excellent fatigue characteristics and bending formability and its manufacturing method |
| UA98214C2 (en) * | 2010-09-27 | 2012-04-25 | Публичное Акционерное Общество "Металлургический Комбинат "Азовсталь" | Method of production of steel high-strength electric-welded single-seam large diameter pipes for main pipelines |
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2014
- 2014-08-12 RU RU2014133254/02A patent/RU2580773C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2580773C2 (en) | 2016-04-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20180813 |