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RU2001133970A - Method for the production of seamless hot-rolled conversion long pipes from hard-deformed grades of steel and alloys - Google Patents

Method for the production of seamless hot-rolled conversion long pipes from hard-deformed grades of steel and alloys

Info

Publication number
RU2001133970A
RU2001133970A RU2001133970/02A RU2001133970A RU2001133970A RU 2001133970 A RU2001133970 A RU 2001133970A RU 2001133970/02 A RU2001133970/02 A RU 2001133970/02A RU 2001133970 A RU2001133970 A RU 2001133970A RU 2001133970 A RU2001133970 A RU 2001133970A
Authority
RU
Russia
Prior art keywords
polishing section
rolls
caliber
alloys
hard
Prior art date
Application number
RU2001133970/02A
Other languages
Russian (ru)
Other versions
RU2226132C2 (en
Inventor
Анатолий Васильевич Сафьянов
Александр Анатольевич Фёдоров
Валерий Валерьевич Игнатьев
Леонид Игнатьевич Лапин
Игорь Александрович Романцов
Сергей Васильевич Ненахов
Николай Григорьевич Дановский
Марат Раифович Хамедзянов
Original Assignee
ОАО "Челябинский трубопрокатный завод"
Filing date
Publication date
Application filed by ОАО "Челябинский трубопрокатный завод" filed Critical ОАО "Челябинский трубопрокатный завод"
Priority to RU2001133970/02A priority Critical patent/RU2226132C2/en
Priority claimed from RU2001133970/02A external-priority patent/RU2226132C2/en
Publication of RU2001133970A publication Critical patent/RU2001133970A/en
Application granted granted Critical
Publication of RU2226132C2 publication Critical patent/RU2226132C2/en

Links

Claims (1)

Способ производства бесшовных горячекатаных передельных длинномерных труб-заготовок из труднодеформируемых марок стали и сплавов, включающий обточку, сверловку, расточку слитков ЭШП и кованых заготовок или прошивку их на прессе с последующей обточкой и расточкой в гильзы-заготовки, нагрев их до температуры пластичности, прокатку в пилигримовом стане в валках, имеющих на полирующем участке калибр с тангенциальными выпусками или овальный, на дорнах средний диаметр которых меньше внутреннего диаметра гильз-заготовок, отличающийся тем, что прокатку гильз-заготовок в передельные горячекатаные трубы-заготовки в пилигримовом стане ведут в валках с круглым калибром с углом поперечного выпуска на полирующем участке α=25-30° или в валках с овальным калибром с отношением В/Н=1,1-1,15, с разностью (зазором) между внутренним диаметрм гильз-заготовок и средним диаметром дорнов равным Dг.-з.вн.-Dcp.q=l0÷20(мм) и с обеспечением вытяжки μ≤6,0, где α-угол поперечного выпуска валков пилигримового стана на полирующем участке, град., В-ширина калибра валка на полирующем участке, мм; Н-высота калибра валка на полирующем участке, мм, μ-коэффициент вытяжки на пилигримовом стане, Dг.-з.вн.-внутренний диаметр гильзы-заготовки, мм, Dcp.q.-средний диаметр дорна, мм.A method for the production of seamless hot-rolled conversion lengthy pipe billets from hard-to-deform grades of steel and alloys, including turning, drilling, boring ESR ingots and forged billets or flashing them on a press followed by turning and boring into billet sleeves, heating them to ductility temperature, rolling them into a pilgrim mill in rolls having a caliber with tangential outlets on the polishing section or oval, on the mandrels whose average diameter is smaller than the inner diameter of the shell blanks, characterized in that then the rolling of the sleeve blanks into hot-rolled pig tubes in the pilgrim mill is carried out in rolls with a round gauge with an angle of transverse outlet in the polishing section α = 25-30 ° or in rolls with an oval gauge with a ratio B / N = 1.1-1 , 15, with the difference (gap) between the inner diameter of the shell blanks and the average diameter of the mandrels equal to Dg.-w.p.-Dcp.q = l0 ÷ 20 (mm) and with extracting μ≤6,0, where α- the angle of the transverse release of the rolls of the pilgrim mill in the polishing section, deg., B-width of the caliber of the roll in the polishing section, mm; H-height of the caliber of the roll in the polishing section, mm, μ-coefficient of extraction on the pilgrim mill, Dg.-wc-inner diameter of the sleeve-workpiece, mm, Dcp.q.-average diameter of the mandrel, mm.
RU2001133970/02A 2001-12-13 2001-12-13 Method for making seamless hot rolled conversion elongated tubes of hard-to-form kinds of steels and alloys RU2226132C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001133970/02A RU2226132C2 (en) 2001-12-13 2001-12-13 Method for making seamless hot rolled conversion elongated tubes of hard-to-form kinds of steels and alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001133970/02A RU2226132C2 (en) 2001-12-13 2001-12-13 Method for making seamless hot rolled conversion elongated tubes of hard-to-form kinds of steels and alloys

Publications (2)

Publication Number Publication Date
RU2001133970A true RU2001133970A (en) 2003-12-10
RU2226132C2 RU2226132C2 (en) 2004-03-27

Family

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Family Applications (1)

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RU (1) RU2226132C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2278750C2 (en) * 2004-07-14 2006-06-27 ОАО "Челябинский трубопрокатный завод" Method for producing hot rolled conversion large- and mean-diameter tubes of hard-to-form steels and alloys in tube rolling plants with pilger mills
RU2322316C2 (en) * 2006-04-17 2008-04-20 ОАО "Челябинский трубопрокатный завод" Method for producing ingot-blanks by electroslag refining of hard-to-form steels and alloys and for rolling of them commercial tubes of large and mean diameters in tube rolling plants with pilger mills and conversion tubes for rerolling in tube cold rolling mills
RU2322317C2 (en) * 2006-04-17 2008-04-20 ОАО "Челябинский трубопрокатный завод" Method for producing by electrolag refining ingot-blanks of hard-to-form steels and alloys and for rolling of them commercial tubes of large and mean diameters in tube rolling plants with pilger mills and conversion tubes for further rerolling in tube cold rolling mills
RU2522514C1 (en) * 2012-11-26 2014-07-20 Открытое акционерное общество "Челябинский трубопрокатный завод" PRODUCTION OF SEAMLESS HOT-ROLLED PIPES SIZED TO 610×28-32×4700-5400 mm FROM "15Х1М1Ф"- AND "10Х9МФБ"-GRADE STEELS AT PRU 8-16'' WITH PILGER MILLS FOR PIPELINES OF BOILER UNIT STEAM INTERMEDIATE OVERHEATING WITH HIGHER MECHANICAL PROPERTIES
RU2550045C2 (en) * 2013-08-13 2015-05-10 Открытое акционерное общество "Челябинский трубопрокатный завод" MANUFACTURING METHOD OF SEMI-FINISHED HOT-ROLLED MECHANICALLY PROCESSED PIPES WITH SIZE OF 325×12 mm WITH INCREASED ACCURACY AS TO DIAMETER AND WALL FROM STEEL GRADES "12Х12М1БФРУ-Ш" AND "16Х12МВСФБР-Ш" FOR REROLLING ON "ХПТ" 450 AND "ХПТ" 250 MILLS INTO SEMI-FINISHED PIPE WORKPIECES WITH SIZE OF 202±1,2×3,5+0,3/-0,2 mm, 194±1,2×2,5+0,3/-0,2 mm AND FURTHER SHAPING INTO HEXAGONAL PIPE WORKPIECES WITH FLAT-TO-FLAT SIZE OF 181,8±0,4×3,5+0,3/-0,2×3750+20/-0 mm AND 175±0,4×2,5+0,3/-0,2×2680+20/-0 mm FOR FAST NEUTRON REACTORS OF NEW GENERATION
RU2545970C2 (en) * 2013-08-20 2015-04-10 Открытое акционерное общество "Челябинский трубопрокатный завод" MANUFACTURING METHOD OF COLD-ROLLED MARKETABLE PIPES WITH SIZE OF 170±1,5×3±0,25×370 mm WITH INCREASED ACCURACY AS TO WALL FROM STEEL GRADE "16Х12МВСФБР-Ш" FOR FAST NEUTRON REACTORS OF NEW GENERATION
RU2550041C2 (en) * 2013-08-20 2015-05-10 Открытое акционерное общество "Челябинский трубопрокатный завод" MANUFACTURING METHOD OF SEMI-FINISHED HOT-ROLLED MECHANICALLY PROCESSED PIPES WITH SIZE OF 325×12 mm WITH INCREASED ACCURACY AS TO DIAMETER AND WALL FROM STEEL GRADES "12Х12М1БФРУ-Ш", "16Х12МВСФБР-Ш" FOR REROLLING ON "ХПТ" 450 AND "ХПТ" 250 MILLS INTO SEMI-FINISHED PIPE WORKPIECES WITH SIZE OF 202±1,2×3,5+0,3/-0,2 mm AND FURTHER SHAPING INTO HEXAGONAL PIPE WORKPIECES WITH FLAT-TO-FLAT SIZE OF 181,8±0,4×3,5+0,3/-0,2×3750+20/-0 mm AND 175±0,4×2,5+0,3/-0,2×2680+20/-0 mm FOR FAST NEUTRON REACTORS OF NEW GENERATION
CN107639129B (en) * 2017-08-31 2019-03-29 宝丰钢业集团有限公司 Processing technology of corrosion-resistant stainless steel seamless steel pipe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3717698A1 (en) * 1986-06-25 1988-01-14 Kocks Technik METHOD AND SYSTEM FOR PRODUCING SEAMLESS TUBES
RU2009739C1 (en) * 1991-06-26 1994-03-30 Акционерное общество "Челябинский трубопрокатный завод" Method of cross-screw piercing
RU2151658C1 (en) * 1999-06-01 2000-06-27 АООТ "Челябинский трубопрокатный завод" Method for making seamless tubes

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