RU2001133971A - Method for the production of pipes of large and medium diameters in tube-rolling plants with pilgrim mills - Google Patents

Method for the production of pipes of large and medium diameters in tube-rolling plants with pilgrim mills

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Publication number
RU2001133971A
RU2001133971A RU2001133971/02A RU2001133971A RU2001133971A RU 2001133971 A RU2001133971 A RU 2001133971A RU 2001133971/02 A RU2001133971/02 A RU 2001133971/02A RU 2001133971 A RU2001133971 A RU 2001133971A RU 2001133971 A RU2001133971 A RU 2001133971A
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RU
Russia
Prior art keywords
pipes
diameter
rolling
tube
production
Prior art date
Application number
RU2001133971/02A
Other languages
Russian (ru)
Other versions
RU2220793C2 (en
Inventor
Александр Анатольевич Фёдоров
Анатолий Васильевич Сафьянов
Валерий Валерьевич Игнатьев
Игорь Александрович Романцов
Леонид Игнатьевич Лапин
Сергей Васильевич Ненахов
Валерий Андреевич Логовиков
Original Assignee
ОАО "Челябинский трубопрокатный завод"
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Publication date
Application filed by ОАО "Челябинский трубопрокатный завод" filed Critical ОАО "Челябинский трубопрокатный завод"
Priority to RU2001133971/02A priority Critical patent/RU2220793C2/en
Priority claimed from RU2001133971/02A external-priority patent/RU2220793C2/en
Publication of RU2001133971A publication Critical patent/RU2001133971A/en
Application granted granted Critical
Publication of RU2220793C2 publication Critical patent/RU2220793C2/en

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Claims (1)

Способ производства труб большого и среднего диаметров на трубопрокатных установках с пилигримовыми станами, включающий нагрев слитков и заготовок до температуры пластичности, прошивку их в гильзы и пилигримовую прокатку гильз в трубы на дорнах, средний диаметр которых меньше внутреннего диаметра гильз на 20-50мм, отличающийся тем, что разность между внутренним диаметром гильзы и диаметром дорна (Δ-зазор) увеличивают с увеличением коэффициента вытяжки и диаметра прокатываемых труб и определяют из выраженияA method for the production of large and medium diameter pipes in tube-rolling plants with pilgrim mills, including heating ingots and billets to a plasticity temperature, piercing them into sleeves and pilgrim rolling the sleeves into pipes on mandrels, the average diameter of which is 20-50 mm smaller than the inner diameter of the sleeves, that the difference between the inner diameter of the sleeve and the diameter of the mandrel (Δ-gap) increase with increasing coefficient of drawing and the diameter of the rolled pipes and is determined from the expression
Figure 00000001
Figure 00000001
где Δj - зазор между внутренним диаметром гильзы и средним диаметром дорна при прокатке труб j-го размера, мм;where Δj is the gap between the inner diameter of the sleeve and the average diameter of the mandrel when rolling pipes of j-th size, mm; μj - коэффициент вытяжки при прокатке труб j-го размера;μj is the drawing coefficient for rolling tubes of the jth size; DJ - номинальный диаметр труб j-го размера, мм;DJ - nominal diameter of j-size pipes, mm; Dmjn - минимальный диаметр труб, прокатываемых на данной пилигримовой установке, мм.Dmjn is the minimum diameter of pipes rolled on this pilgrim installation, mm.
RU2001133971/02A 2001-12-13 2001-12-13 Method for making tubes with large and mean diameters in tube rolling plants with pilger mills RU2220793C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2001133971/02A RU2220793C2 (en) 2001-12-13 2001-12-13 Method for making tubes with large and mean diameters in tube rolling plants with pilger mills

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2001133971/02A RU2220793C2 (en) 2001-12-13 2001-12-13 Method for making tubes with large and mean diameters in tube rolling plants with pilger mills

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RU2001133971A true RU2001133971A (en) 2003-12-10
RU2220793C2 RU2220793C2 (en) 2004-01-10

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Country Status (1)

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RU (1) RU2220793C2 (en)

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