Publication detail

Development of accelerated cooling for new plate mill

RAUDENSKÝ, M. HORSKÝ, J. LEE, P.

Original Title

Development of accelerated cooling for new plate mill

English Title

Development of accelerated cooling for new plate mill

Type

journal article - other

Language

en

Original Abstract

The aim of the paper is to design the new wide plate mill. The work on the new cooling technology was supported by extensive laboratory testing while a simulator with full scale testing of cooling units was used. The principal objective of the investigation was to establish the design specification of equipment for accelerated cooling, particularly with respect to the product dimensions and steel grades. The possibilities of accelerated cooling are limited by technical parameters of cooling equipment such as thickness of water layer, flowrate, spray height, position of cooled surface to the nozzles and water or plate speed. These parameters were studied for different product temperatures and water impingement densities from 50 to 110 l s21 m22. The heat transfer coefficient was determined and compared for each case. There were three recognised significant cooling regions: water layer region, impinging jet region without water layer and impinging region with water layer, which must be taken into account. The pplication of the new cooling technology showed better flatness product and productivity higher than previous accelerated cooling system, even shorter cooling length. The rejection ratio by flatness problem ofnew mill was nearly half of the previous one.

English abstract

The aim of the paper is to design the new wide plate mill. The work on the new cooling technology was supported by extensive laboratory testing while a simulator with full scale testing of cooling units was used. The principal objective of the investigation was to establish the design specification of equipment for accelerated cooling, particularly with respect to the product dimensions and steel grades. The possibilities of accelerated cooling are limited by technical parameters of cooling equipment such as thickness of water layer, flowrate, spray height, position of cooled surface to the nozzles and water or plate speed. These parameters were studied for different product temperatures and water impingement densities from 50 to 110 l s21 m22. The heat transfer coefficient was determined and compared for each case. There were three recognised significant cooling regions: water layer region, impinging jet region without water layer and impinging region with water layer, which must be taken into account. The pplication of the new cooling technology showed better flatness product and productivity higher than previous accelerated cooling system, even shorter cooling length. The rejection ratio by flatness problem ofnew mill was nearly half of the previous one.

Keywords

Accelerated cooling, Plate mill, New cooling technology, Spray cooling, Heat transfer coefficient, Experimental

RIV year

2013

Released

14.11.2013

Publisher

Maney Publishing

Location

Spojené království Velké Británie a Severního Irska

Pages from

598

Pages to

604

Pages count

7

BibTex


@article{BUT102620,
  author="Miroslav {Raudenský} and Jaroslav {Horský} and P.J. {Lee}",
  title="Development of accelerated cooling for new plate mill",
  annote="The aim of the paper is to design the new wide plate mill. The work on the new cooling technology was supported by extensive laboratory testing while a simulator with full scale testing of cooling units was used. The principal objective of the investigation was to establish the design specification of equipment for accelerated cooling, particularly with respect to the product dimensions and steel grades. The possibilities of accelerated cooling are limited by technical parameters of cooling equipment such as thickness of water layer, flowrate, spray height, position of cooled surface to the nozzles and water or plate speed. These parameters were studied for different product temperatures and water impingement densities from 50 to 110 l s21 m22. The heat transfer coefficient was determined and compared for each case. There were three recognised significant cooling regions: water layer region, impinging jet region without water layer and impinging region with water layer, which must be taken into account. The pplication of the new cooling technology showed better flatness product and productivity higher than previous accelerated cooling system, even shorter cooling length. The rejection ratio by flatness problem ofnew mill was nearly half of the previous one.",
  address="Maney Publishing",
  chapter="102620",
  doi="10.1179/1743281212Y.0000000089",
  institution="Maney Publishing",
  number="8",
  volume="40",
  year="2013",
  month="november",
  pages="598--604",
  publisher="Maney Publishing",
  type="journal article - other"
}