RU95110580A - Backup roll - Google Patents

Backup roll

Info

Publication number
RU95110580A
RU95110580A RU95110580/02A RU95110580A RU95110580A RU 95110580 A RU95110580 A RU 95110580A RU 95110580/02 A RU95110580/02 A RU 95110580/02A RU 95110580 A RU95110580 A RU 95110580A RU 95110580 A RU95110580 A RU 95110580A
Authority
RU
Russia
Prior art keywords
roll
barrel
length
rolling
bevel
Prior art date
Application number
RU95110580/02A
Other languages
Russian (ru)
Other versions
RU2081716C1 (en
Inventor
В.В. Ветер
Г.А. Белкин
А.В. Мельников
И.С. Сарычев
А.А. Букинич
Д.П. Мельник
Original Assignee
Акционерное общество "Новолипецкий металлургический комбинат"
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Акционерное общество "Новолипецкий металлургический комбинат" filed Critical Акционерное общество "Новолипецкий металлургический комбинат"
Priority to RU95110580A priority Critical patent/RU2081716C1/en
Publication of RU95110580A publication Critical patent/RU95110580A/en
Application granted granted Critical
Publication of RU2081716C1 publication Critical patent/RU2081716C1/en

Links

Landscapes

  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)

Abstract

FIELD: rolling, particular, sheet rolling; applicable, for instance, in production of strips and sheets on hot-rolling wide-strip mills. SUBSTANCE: backup roll barrel has bevels on its edges with bevel length equalling 0.02-0.185 of barrel length and with depth equalling 3.2x1010- 16x1010of roll barrel diameter, and roll length-to-depth ratio of 30-600. Place of transition to bevel on roll barrel is smooth, for instance, of fillet type. In course of operation of the offered rolls, the mill output rises due to reduced time for emergency shutdowns caused by roll spilling, roll consumption coefficient per ton of rolled products reduces and loading degree of roll-turning and roll-grinding equipment decreases. EFFECT: higher stability of backup rolls due to elimination of cracks and spilling.

Claims (1)

Изобретение относится к листопрокатному производству, и может быть использовано, например, при производстве полос и листов на широкополосных станах горячей прокатки. Цель изобретения - повышение стойкости опорных прокатных валков путем устранения трещин и выкрашивания. Поставленная цель достигается тем, что бочка опорного валка по своим краям имеет скосы длиной, равной 0,02-0,185 от длины бочки, и глубиной, равной 3,2•10-4 - 16•10-4 от диаметра бочки валка, при соотношении длины скоса к его глубине равном 30-600, причем место перехода к скосу на бочке валка выполнено плавным, например, типа "галтель". В процессе эксплуатации таких валков повышается производительность стана за счет уменьшения времени на аварийные остановки из-за выкрашивания валков, уменьшается расходный коэффициент валков на тонну проката, снижается степень загруженности вальцетокарного и вальцешлифовального оборудования.The invention relates to sheet rolling production, and can be used, for example, in the production of strips and sheets on broadband hot rolling mills. The purpose of the invention is to increase the resistance of the supporting rolls by eliminating cracks and spalling. This goal is achieved in that the roll of the back-up roll has bevels along its edges with a length of 0.02-0.185 of the length of the barrel and a depth of 3.2 • 10 -4 - 16 • 10 -4 of the diameter of the roll barrel, with the ratio the length of the bevel to its depth equal to 30-600, and the place of transition to the bevel on the roll barrel is made smooth, for example, such as "fillet". During the operation of such rolls, the productivity of the mill increases due to the reduction of time for emergency stops due to roll chipping, the expenditure coefficient of rolls per ton of rolled metal decreases, and the degree of congestion of the roll-rolling and roll-grinding equipment is reduced.
RU95110580A 1995-06-23 1995-06-23 Supporting roll RU2081716C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU95110580A RU2081716C1 (en) 1995-06-23 1995-06-23 Supporting roll

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU95110580A RU2081716C1 (en) 1995-06-23 1995-06-23 Supporting roll

Publications (2)

Publication Number Publication Date
RU95110580A true RU95110580A (en) 1997-06-10
RU2081716C1 RU2081716C1 (en) 1997-06-20

Family

ID=20169248

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95110580A RU2081716C1 (en) 1995-06-23 1995-06-23 Supporting roll

Country Status (1)

Country Link
RU (1) RU2081716C1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112264465A (en) * 2020-09-29 2021-01-26 武汉钢铁有限公司 Centrifugal composite roller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112264465A (en) * 2020-09-29 2021-01-26 武汉钢铁有限公司 Centrifugal composite roller
CN112264465B (en) * 2020-09-29 2022-06-17 武汉钢铁有限公司 Centrifugal composite roller

Also Published As

Publication number Publication date
RU2081716C1 (en) 1997-06-20

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Legal Events

Date Code Title Description
MM4A The patent is invalid due to non-payment of fees

Effective date: 20070624