RU2008115398A - 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
- RU2008115398A RU2008115398A RU2008115398/02A RU2008115398A RU2008115398A RU 2008115398 A RU2008115398 A RU 2008115398A RU 2008115398/02 A RU2008115398/02 A RU 2008115398/02A RU 2008115398 A RU2008115398 A RU 2008115398A RU 2008115398 A RU2008115398 A RU 2008115398A
- Authority
- RU
- Russia
- Prior art keywords
- rolling mill
- thick
- rolling
- billets
- oblique
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract 3
- 238000005096 rolling process Methods 0.000 claims abstract 28
- 238000000034 method Methods 0.000 claims abstract 6
- 238000009785 tube rolling Methods 0.000 claims abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims abstract 2
- 239000000956 alloy Substances 0.000 claims abstract 2
- 229910045601 alloy Inorganic materials 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims abstract 2
- 238000003303 reheating Methods 0.000 claims abstract 2
- 239000010959 steel Substances 0.000 claims abstract 2
- 238000009434 installation Methods 0.000 claims 1
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- 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 стане косой прокатки на короткой оправке, повторный нагрев толстостенных гильз до температуры пластичности, раскатку в тонкостенные гильзы в стане косой прокатки, прокатку гильз в трубы на пилигримовых станах в профильных валках на длинной оправке - дорне, отличающийся тем, что прошивку слитков и заготовок в толстостенные гильзы производят в первом стане косой прокатки, а раскатку в тонкостенные гильзы - во втором стане косой прокатки, установленном параллельно первому со смещением выходных и входных сторон. ! 2. Способ по п.1, отличающийся тем, что суммарную мощность приводов прошивных станов определяют из выражения ! (N1+N2)=(1,1-1,15)Nmax, ! где Nmax - максимальная мощность приводов стана косой прокатки, необходимая для прошивки максимальных диаметров слитков электрошлакового переплава и заготовок для прокатки труб максимального диаметра из труднодеформируемых марок стали и сплавов для данной трубопрокатной установки, Квт; ! N1 - мощность приводов первого стана косой прокатки для прошивки слитков и заготовок в толстостенные гильзы, Квт; ! N2 - мощность приводов второго стана косой прокатки для раскатки толстостенных гильз в тонкостенные, Квт. ! 3. Способ по п.2, отличающийся тем, что мощность приводов стана косой прокатки для прошивки слитков и заготовок в толстостенные гильзы определяют из выражения ! N1=K(N1+N2), ! где К=(055-0,60) - коэффициент для определения мощности приводов с�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 ductility temperature, flashing them into hollow thick-walled sleeves in an oblique rolling mill on a short mandrel, reheating thick-walled sleeves to ductility temperature, rolling into thin-walled sleeves in an oblique rolling mill, rolling the sleeves into tubes on pilgrim mills in profile rolls on a long mandrel is a mandrel, characterized in that the firmware for ingots and billets in thick-walled sleeves, they are produced in the first oblique rolling mill, and rolling into thin-walled sleeves in the second oblique rolling mill installed parallel to the first with the offset of the output and input sides. ! 2. The method according to claim 1, characterized in that the total power of the drives of the piercing mills is determined from the expression! (N1 + N2) = (1.1-1.15) Nmax,! where Nmax is the maximum power of the drives of the oblique rolling mill necessary for flashing the maximum diameters of electroslag remelting ingots and billets for rolling pipes of the maximum diameter from hard-deformed steel grades and alloys for a given tube rolling plant, kW; ! N1 - drive power of the first oblique rolling mill for flashing ingots and billets into thick-walled sleeves, kW; ! N2 - power of the drives of the second oblique rolling mill for rolling thick-walled sleeves into thin-walled, kW. ! 3. The method according to claim 2, characterized in that the power of the drives of the oblique rolling mill for flashing ingots and billets into thick-walled sleeves is determined from the expression! N1 = K (N1 + N2),! where K = (055-0.60) is the coefficient for determining the drive power with
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008115398/02A RU2387498C2 (en) | 2008-04-18 | 2008-04-18 | Fabrication method of seamless hot-deformed tubes of large and mean diametres on tube-forming installations with pilger mills |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2008115398/02A RU2387498C2 (en) | 2008-04-18 | 2008-04-18 | Fabrication method of seamless hot-deformed tubes of large and mean diametres on tube-forming installations with pilger mills |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2008115398A true RU2008115398A (en) | 2009-10-27 |
| RU2387498C2 RU2387498C2 (en) | 2010-04-27 |
Family
ID=41352560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2008115398/02A RU2387498C2 (en) | 2008-04-18 | 2008-04-18 | Fabrication method of seamless hot-deformed tubes of large and mean diametres on tube-forming installations with pilger mills |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2387498C2 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798071A (en) * | 1986-06-25 | 1989-01-17 | Kocks Technik Gmbh & Co. | Seamless tube production |
| JP3855300B2 (en) * | 1996-04-19 | 2006-12-06 | 住友金属工業株式会社 | Manufacturing method and equipment for seamless steel pipe |
| RU2151658C1 (en) * | 1999-06-01 | 2000-06-27 | АООТ "Челябинский трубопрокатный завод" | Method for making seamless tubes |
| RU2243837C1 (en) * | 2003-07-29 | 2005-01-10 | ОАО "Челябинский трубопрокатный завод" | Method for making hot-deformed seamless large-diameter tubes |
-
2008
- 2008-04-18 RU RU2008115398/02A patent/RU2387498C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2387498C2 (en) | 2010-04-27 |
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| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20100419 |
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| NF4A | Reinstatement of patent |
Effective date: 20130410 |
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| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20180419 |