SU281381A1 - METHOD OF COLD PERIOD OF PIPE ROLLING - Google Patents

METHOD OF COLD PERIOD OF PIPE ROLLING

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Publication number
SU281381A1
SU281381A1 SU1308052A SU1308052A SU281381A1 SU 281381 A1 SU281381 A1 SU 281381A1 SU 1308052 A SU1308052 A SU 1308052A SU 1308052 A SU1308052 A SU 1308052A SU 281381 A1 SU281381 A1 SU 281381A1
Authority
SU
USSR - Soviet Union
Prior art keywords
mandrel
pipe
pipe rolling
workpiece
rolling
Prior art date
Application number
SU1308052A
Other languages
Russian (ru)
Original Assignee
Н. А. Кочегаров , А. М. Попович
Publication of SU281381A1 publication Critical patent/SU281381A1/en

Links

Description

Известен способ холодной прокатки труб, включающий прокатку цилиндрической заготовки на неиодвижной онравке в валках, калибры которых имеют зоиы редуцировани , обжати  и калибровки.There is a known method of cold-rolling tubes, which involves rolling a cylindrical billet on a non-mobile sliding rolls, the calibers of which have zones of reduction, reduction and calibration.

Дл  предотвра1це|ни  врезани  тонкостениых заготовок при подаче в предложенном способе оправку вместе с трубой перемещают на величину подачи по ходу прокатки. Во врем  редуцировани  заготовки в валках оправку возвращают в очаг деформации. Таким образом , усилие съема трубы с оправки не передаетс  на иоследуюп1.ую заготовку.In order to prevent the incision of thin-walled workpieces when feeding in the proposed method, the mandrel together with the pipe is moved by the amount of feed during rolling. During the reduction of the workpiece in the rollers, the mandrel is returned to the deformation zone. Thus, the removal force of the pipe from the mandrel is not transmitted to the next billet.

Способ по сн етс  схемой, показанпой на чертеже.The method is illustrated by the scheme shown in the drawing.

На чертеже показав: момент деформацип заготовки / зоной редуцировани  de валков 2 и возврата оправки 3 в очаг деформации. В момент подачи заготовки / заготовкой 4 и патроном 5 на величину нодачи но ходу ирокатки была иеремещена и оправка. При деформации заготовки / в зоне редуцировани In the drawing, showing: the moment of deformation of the workpiece / reduction zone de rolls 2 and the return of the mandrel 3 to the deformation zone. At the time of the filing of the workpiece / workpiece 4 and the chuck 5, the mandrel was moved by the amount of the nodachi during the course of the iorkatka. When deformation of the workpiece / in the zone of reduction

оправку возвращают в очаг деформации и ирокатку осуществл ют на ненодвил-сной оиравке .the mandrel is returned to the deformation zone, and the irokatka is performed on a non-subvillage.

Способ может быть использовали при прокатке на стане ХПТ и ХПТР. Он иозвол ет избежать см ти  торцов тонкостеиных труб, подаваемых в стык, за счет удержани  трубы валками при возврате оиравки и отрыве ее от заготовки.The method can be used when rolling on the mill HPT and KPTR. It is possible to avoid seeing the ends of the thin-bone pipes supplied to the joint by holding the pipe with rolls when returning the pipe and separating it from the workpiece.

00

Предмет изобретени  Способ холодной периодической прокатки труб, включающий проьатку цилиндрическо| 1 заготовки па неподвижной оправке в валках, калибр1 1 которых имеют зоны редуцироваиип. обжати  и калибровки, ог.тчающийс.ч тем. что, с целью иредотвраи1,епи  врезани  топкостециых заготовок при подаче, оправку вместе с трубой перемещают па величину иодачи ио ходу прокатки и возвращают в очаг деформации во врем  редуцировани  заготовки валками.The subject of the invention. A method of periodically cold rolling a pipe, comprising a cylindrical proc. 1 workpieces on a fixed mandrel in rolls, caliber1 1 of which have zones of reduction. compression and calibration, og.tchayusch.ch topics. that, for the purpose of iredotrai1, the incision of insertion of toposteous billets during feeding, the mandrel together with the pipe moves the iodine value during the rolling process and returns to the deformation zone during the reduction of the workpiece by rolls.

SU1308052A METHOD OF COLD PERIOD OF PIPE ROLLING SU281381A1 (en)

Publications (1)

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SU281381A1 true SU281381A1 (en)

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