RU2003137063A - METHOD OF COMBINED CONTINUOUS SCREW AND LONGITUDINAL ROLLING - Google Patents

METHOD OF COMBINED CONTINUOUS SCREW AND LONGITUDINAL ROLLING Download PDF

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Publication number
RU2003137063A
RU2003137063A RU2003137063/02A RU2003137063A RU2003137063A RU 2003137063 A RU2003137063 A RU 2003137063A RU 2003137063/02 A RU2003137063/02 A RU 2003137063/02A RU 2003137063 A RU2003137063 A RU 2003137063A RU 2003137063 A RU2003137063 A RU 2003137063A
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RU
Russia
Prior art keywords
rolling
workpiece
helical
rolls
deformation
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RU2003137063/02A
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Russian (ru)
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RU2278747C2 (en
Inventor
Сергей Петрович Жерновков (RU)
Сергей Петрович Жерновков
Original Assignee
Общество с ограниченной ответственностью "Научно-производственное предпри тие "ТОЧМЕТ" (RU)
Общество с ограниченной ответственностью "Научно-производственное предприятие "ТОЧМЕТ"
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Priority to RU2003137063/02A priority Critical patent/RU2278747C2/en
Publication of RU2003137063A publication Critical patent/RU2003137063A/en
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Publication of RU2278747C2 publication Critical patent/RU2278747C2/en

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Claims (1)

Способ совмещенной непрерывной винтовой и продольной прокатки, включающий вневалковую деформацию заготовки скручиванием в промежутке между смежными клетями винтовой и продольной прокатки, отличающийся тем, что вневалковую деформацию заготовки скручиванием производят в клети винтовой прокатки, останавливая вращение заготовки при выходе из валков роликовой проводкой, при этом величину радиального обжатия t заготовки неприводными удерживающими роликами проводки выбирают из интервала: t=[a, b], где:A method of combined continuous helical and longitudinal rolling, including extralock deformation of the workpiece by twisting in the gap between adjacent helical and longitudinal rolling stands, characterized in that the extralock deformation of the workpiece by twisting is performed in the helical rolling mill, stopping the rotation of the workpiece upon exiting the rolls by roller wiring, while radial compression t of the workpiece by non-driving holding rollers of the wiring is selected from the interval: t = [a, b], where: а=0,52d11,5/D0,5/m1;a = 0.52d 1 1.5 / D 0.5 / m 1 ; b=0,35d1(mtgα /tgγ )1/3((λ -1)(1–2nσ tgα )/m1/n)2/3,b = 0.35d 1 (mtgα / tgγ) 1/3 ((λ -1) (1–2n σ tgα) / m 1 / n ) 2/3 , где t – радиальное обжатие заготовки неприводными удерживающими роликами, мм;where t is the radial compression of the workpiece by non-drive holding rollers, mm; d1 - диаметр проката на выходе из валков клети винтовой прокатки, мм;d 1 is the diameter of the rolled products at the exit from the rolls of the screw rolling stand, mm; λ – вытяжка в клети винтовой прокатки;λ is the hood in the screw rolling stand; m – число рабочих валков клети винтовой прокатки;m is the number of working rolls of the screw rolling stand; γ – угол подачи валков, град;γ is the feed angle of the rolls, deg; α – угол обжимного конуса очага деформации винтовой прокатки, град;α is the angle of the crimp cone of the deformation zone of helical rolling, deg; D – диаметр неприводного удерживающего ролика, мм;D is the diameter of the non-drive holding roller, mm; m1 - число неприводных удерживающих роликов;m 1 - the number of non-drive holding rollers; nσ – коэффициент напряженного состояния при винтовой прокатке;n σ is the stress state coefficient during helical rolling; n- коэффициент напряженного состояния при продольной прокатке.n is the stress coefficient during longitudinal rolling.
RU2003137063/02A 2003-12-24 2003-12-24 Combination type continuous screw and lengthwise rolling method RU2278747C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003137063/02A RU2278747C2 (en) 2003-12-24 2003-12-24 Combination type continuous screw and lengthwise rolling method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003137063/02A RU2278747C2 (en) 2003-12-24 2003-12-24 Combination type continuous screw and lengthwise rolling method

Publications (2)

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RU2003137063A true RU2003137063A (en) 2005-06-10
RU2278747C2 RU2278747C2 (en) 2006-06-27

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RU2003137063/02A RU2278747C2 (en) 2003-12-24 2003-12-24 Combination type continuous screw and lengthwise rolling method

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114653748A (en) * 2022-04-15 2022-06-24 宁波大学 Three-roller skew rolling forming method for right-angle stepped shaft

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114653748A (en) * 2022-04-15 2022-06-24 宁波大学 Three-roller skew rolling forming method for right-angle stepped shaft
CN114653748B (en) * 2022-04-15 2022-10-11 宁波大学 Three-roller skew rolling forming method for right-angle stepped shaft

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Publication number Publication date
RU2278747C2 (en) 2006-06-27

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Date Code Title Description
FA94 Acknowledgement of application withdrawn (non-payment of fees)

Effective date: 20051115

FZ9A Application not withdrawn (correction of the notice of withdrawal)

Effective date: 20051212

MM4A The patent is invalid due to non-payment of fees

Effective date: 20061225