RU2001121103A - Method for the production of pipes from difficult to deform steel grades and alloys with a high coefficient of linear expansion - Google Patents

Method for the production of pipes from difficult to deform steel grades and alloys with a high coefficient of linear expansion

Info

Publication number
RU2001121103A
RU2001121103A RU2001121103/02A RU2001121103A RU2001121103A RU 2001121103 A RU2001121103 A RU 2001121103A RU 2001121103/02 A RU2001121103/02 A RU 2001121103/02A RU 2001121103 A RU2001121103 A RU 2001121103A RU 2001121103 A RU2001121103 A RU 2001121103A
Authority
RU
Russia
Prior art keywords
mandrel
pipes
temperature
working part
heated
Prior art date
Application number
RU2001121103/02A
Other languages
Russian (ru)
Other versions
RU2214312C2 (en
Inventor
Анатолий Васильевич Сафьянов
Александр Анатольевич Фёдоров
Валерий Валерьевич Игнатьев
Леонид Игнатьевич Лапин
Игорь Александрович Романцов
Сергей Васильевич Ненахов
Николай Григорьевич Дановский
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 RU2001121103A priority Critical patent/RU2214312C2/en
Priority claimed from RU2001121103A external-priority patent/RU2214312C2/en
Publication of RU2001121103A publication Critical patent/RU2001121103A/en
Application granted granted Critical
Publication of RU2214312C2 publication Critical patent/RU2214312C2/en

Links

Claims (2)

1. Способ производства труб из труднодеформируемых марок стали и сплавов с повышенным коэффициентом линейного расширения, включающий прокатку нагретых до температуры пластичности гильз или полых заготовок в пилигримовом стане в трубы на дорнах с повышенной конусностью, разогретых путем прокатки настроечных труб из углеродистых марок стали, отличающийся тем, что рабочую часть дорна нагревают до средней температуры, равной или большей необходимой температуры переднего конца трубы в момент схода ее с дорна1. A method for the production of pipes from hardly deformable steel grades and alloys with an increased coefficient of linear expansion, which includes rolling sleeves heated to a plasticity temperature or hollow billets in a pilgrim mill into pipes on taper mandrels heated by rolling adjusting pipes from carbon steel grades, characterized in that the working part of the mandrel is heated to an average temperature equal to or greater than the required temperature of the front end of the pipe at the time of its descent from the mandrel Тср.д.≥Тпер.к.т.,Tcd ≥ ≥ Ter.k.t. где Тср.д.- средняя температура дорна перед началом прокатки, °С;where Tsr.d.- the average temperature of the mandrel before rolling, ° C; Тпер.к.т.- необходимая температура переднего конца трубы в момент схода ее с дорна, °С.Tper.k.t.- the required temperature of the front end of the pipe at the time of its descent from the mandrel, ° C. 2. Способ по п.1, отличающийся тем, что рабочую часть дорна нагревают с перепадом температуры по длине рабочей части не более 100°С2. The method according to claim 1, characterized in that the working part of the mandrel is heated with a temperature difference along the length of the working part of not more than 100 ° C Tmax-Tmin <100°С,Tmax-Tmin <100 ° C, где Ттах-максимальная температура рабочей части дорна в зоне интенсивной деформации, °С;where Tmax is the maximum temperature of the working part of the mandrel in the zone of intense deformation, ° C; Tmin-минимальная температура рабочей части дорна (зона прилегающая к дорновому кольцу и конец дорна), °С.Tmin is the minimum temperature of the working part of the mandrel (the zone adjacent to the mandrel ring and the end of the mandrel), ° С.
RU2001121103A 2001-07-26 2001-07-26 Method for making tubes of hard-to-form steels and alloys with increased coefficient of linear expansion RU2214312C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001121103A RU2214312C2 (en) 2001-07-26 2001-07-26 Method for making tubes of hard-to-form steels and alloys with increased coefficient of linear expansion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001121103A RU2214312C2 (en) 2001-07-26 2001-07-26 Method for making tubes of hard-to-form steels and alloys with increased coefficient of linear expansion

Publications (2)

Publication Number Publication Date
RU2001121103A true RU2001121103A (en) 2003-05-27
RU2214312C2 RU2214312C2 (en) 2003-10-20

Family

ID=31988291

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2001121103A RU2214312C2 (en) 2001-07-26 2001-07-26 Method for making tubes of hard-to-form steels and alloys with increased coefficient of linear expansion

Country Status (1)

Country Link
RU (1) RU2214312C2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2547362C2 (en) * 2013-08-20 2015-04-10 Открытое акционерное общество "Челябинский трубопрокатный завод" METHOD TO PRODUCE HEXAHEDRAL STOCK PIPES WITH FLAT-TO-FLAT DIMENSION 175×2,5+0,3/-0,2×2680+20/-0 mm FROM STEEL OF GRADE "16Х12МВСФБР-Ш (ЭП823-Ш)" FOR FAST FEEDER REACTORS
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
RU2545949C2 (en) * 2013-08-20 2015-04-10 Открытое акционерное общество "Челябинский трубопрокатный завод" MANUFACTURING METHOD OF HEXAGONAL PIPE WORKPIECES WITH FLAT-TO-FLAT DIMENSION OF 181,8±0,4×3,5+0,3/-0,2×3750+20/-0 mm FROM STEEL GRADE "12Х12М1БФРУ-Ш" FOR FAST NEUTRON NPP REACTORS
RU2547053C1 (en) * 2013-09-10 2015-04-10 Открытое акционерное общество "Челябинский трубопрокатный завод" PRODUCTION OF HEXAGON PIPE BILLETS OF "TURN KEY" 181,8×3,5+0,3/-0,2×3750+20/-0 mm OF "12Х12М1БФРУ-Ш (ЭП450У-Ш)"-GRADE STEEL

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