RU2008115395A - METHOD FOR PRODUCING SEAMLESS HOT DEFORMED PIPES OF LARGE AND MEDIUM DIAMETERS IN PIPELINE PLANTS WITH PILGRIM MILLS - Google Patents
METHOD FOR PRODUCING SEAMLESS HOT DEFORMED PIPES OF LARGE AND MEDIUM DIAMETERS IN PIPELINE PLANTS WITH PILGRIM MILLS Download PDFInfo
- Publication number
- RU2008115395A RU2008115395A RU2008115395/02A RU2008115395A RU2008115395A RU 2008115395 A RU2008115395 A RU 2008115395A RU 2008115395/02 A RU2008115395/02 A RU 2008115395/02A RU 2008115395 A RU2008115395 A RU 2008115395A RU 2008115395 A RU2008115395 A RU 2008115395A
- Authority
- RU
- Russia
- Prior art keywords
- rolling mill
- ingots
- diameter
- oblique rolling
- billets
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 3
- 238000005096 rolling process Methods 0.000 claims abstract 18
- 238000000034 method Methods 0.000 claims abstract 10
- 230000006835 compression Effects 0.000 claims abstract 4
- 238000007906 compression Methods 0.000 claims abstract 4
- 238000005056 compaction Methods 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000009785 tube rolling Methods 0.000 claims abstract 2
Landscapes
- Metal Rolling (AREA)
Abstract
1. Способ производства бесшовных горячедеформированных труб большого и среднего диаметров на трубопрокатных установках с пилигримовыми станами, включающий нагрев слитков и заготовок до температуры пластичности, прошивку их в полые толстостенные гильзы в одном стане косой прокатки с последующей раскаткой в тонкостенные гильзы во втором стане косой прокатки, установленных последовательно, отличающийся тем, что на первом стане косой прокатки производят обжатие слитков и непрерывно-литых заготовок без оправки - уплотнение с последующей прошивкой в гильзы во втором стане косой прокатки, установленном в технологической линии параллельно первому. ! 2. Способ по п.1, отличающийся тем, что слитки мартеновского производства в первом стане косой прокатки прокатывают без оправки с обжатием по диаметру 7,0-10,0%, большее значение которого относится к слиткам меньшего диаметра. ! 3. Способ по п.1, отличающийся тем, что непрерывно-литые заготовки в первом стане косой прокатки прокатывают без оправки с обжатием по диаметру 4,0-6,0%, большее значение которого относится к заготовкам большего диаметра. ! 4. Способ по п.2, отличающийся тем, что слитки мартеновского производства прошивают во втором стане косой прокатки с подъемом по диаметру 8,0-12,0%, большее значение которого относится к слиткам меньшего диаметра. ! 5. Способ по п.3, отличающийся тем, что непрерывно-литые заготовки прошивают во втором стане косой прокатки с подъемом по диаметру 6,0-10,0%, большее значение которого относится к непрерывно-литым заготовкам меньшего диаметра.1. A method for the production of seamless hot-deformed pipes of large and medium diameters in tube-rolling plants with pilgrim mills, including heating ingots and billets to a plasticity temperature, stitching them into hollow thick-walled sleeves in one oblique rolling mill, followed by rolling into thin-walled sleeves in the second oblique rolling mill, installed sequentially, characterized in that at the first oblique rolling mill, ingots and continuously cast blanks without mandrel are crimped - compaction followed roshivkoy in the sleeve in a second oblique rolling mill installed in parallel with the first processing line. ! 2. The method according to claim 1, characterized in that the open-hearth ingots in the first oblique rolling mill are rolled without a mandrel with compression in diameter of 7.0-10.0%, the larger value of which relates to ingots of a smaller diameter. ! 3. The method according to claim 1, characterized in that the continuously cast billets in the first oblique rolling mill are rolled without a mandrel with compression in diameter of 4.0-6.0%, the larger value of which relates to billets of larger diameter. ! 4. The method according to claim 2, characterized in that the open-hearth ingots are stitched in a second oblique rolling mill with a diameter increase of 8.0-12.0%, the larger value of which relates to ingots of a smaller diameter. ! 5. The method according to claim 3, characterized in that the continuously cast billets are stitched in a second oblique rolling mill with a diameter rise of 6.0-10.0%, the larger value of which relates to continuously cast billets of a smaller diameter.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008115395/02A RU2401171C2 (en) | 2008-04-18 | 2008-04-18 | Method of producing seamless hot-deformed large- and medium-diametre pipes at pipe rolling units with step-rolled mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008115395/02A RU2401171C2 (en) | 2008-04-18 | 2008-04-18 | Method of producing seamless hot-deformed large- and medium-diametre pipes at pipe rolling units with step-rolled mills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008115395A true RU2008115395A (en) | 2009-10-27 |
| RU2401171C2 RU2401171C2 (en) | 2010-10-10 |
Family
ID=41352558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008115395/02A RU2401171C2 (en) | 2008-04-18 | 2008-04-18 | Method of producing seamless hot-deformed large- and medium-diametre pipes at pipe rolling units with step-rolled mills |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2401171C2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2537412C2 (en) * | 2013-03-05 | 2015-01-10 | Открытое акционерное общество "Челябинский трубопрокатный завод" | Production of seamless hot-strained machined 610(36,53(3000-3400mm-pipes from "08-18=10t-+"-grade steel for nuclear power production |
| RU2537638C2 (en) * | 2013-03-12 | 2015-01-10 | Открытое акционерное общество "Челябинский трубопрокатный завод" | PRODUCTION OF SEAMLESS HOT-WORKED MACHINED 610×36,53×3000-3450 mm FROM 15X5M-GRADE STEEL FOR REFINERY COMMUNICATIONS WITH STRINGENT REQUIREMENTS TO GEOMETRICAL SIZES |
| RU2537670C2 (en) * | 2013-03-12 | 2015-01-10 | Открытое акционерное общество "Челябинский трубопрокатный завод" | PRODUCTION OF SEAMLESS HOT-WORKED MACHINED 610×36,53×3550±50 mm PIPES FROM "15Х5М"-GRADE STEEL FOR REFINERY COMMUNICATIONS WITH STRINGENT REQUIREMENTS TO GEOMETRICAL SIZES |
| RU2545948C2 (en) * | 2013-03-12 | 2015-04-10 | Открытое акционерное общество "Челябинский трубопрокатный завод" | PRODUCTION OF SEAMLESS HOT-ROLLED MACHINED 610×36,53 mm PIPES OF 15X5M GRADE STEEL FOR COMMUNICATIONS OF REFINERIES |
| RU2541228C2 (en) * | 2013-05-28 | 2015-02-10 | Открытое акционерное общество "Челябинский трубопрокатный завод" | PRODUCTION OF SEAMLESS COLD-RESISTANT AND NONCORROSIVE 377×9-16 mm PIPES AT PRU WITH PILGER MILLS |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798071A (en) * | 1986-06-25 | 1989-01-17 | Kocks Technik Gmbh & Co. | Seamless tube production |
| RU2243837C1 (en) * | 2003-07-29 | 2005-01-10 | ОАО "Челябинский трубопрокатный завод" | Method for making hot-deformed seamless large-diameter tubes |
| RU2245751C1 (en) * | 2003-10-08 | 2005-02-10 | Открытое акционерное общество "Волжский трубный завод" | Sleeve production method |
-
2008
- 2008-04-18 RU RU2008115395/02A patent/RU2401171C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2401171C2 (en) | 2010-10-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100419 |
|
| NF4A | Reinstatement of patent |
Effective date: 20130410 |
|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20180419 |