WO1985002796A1 - Table de refroidissement a cylindres - Google Patents

Table de refroidissement a cylindres Download PDF

Info

Publication number
WO1985002796A1
WO1985002796A1 PCT/AU1984/000265 AU8400265W WO8502796A1 WO 1985002796 A1 WO1985002796 A1 WO 1985002796A1 AU 8400265 W AU8400265 W AU 8400265W WO 8502796 A1 WO8502796 A1 WO 8502796A1
Authority
WO
WIPO (PCT)
Prior art keywords
cooling table
pipes
roller cooling
rolls
rollers
Prior art date
Application number
PCT/AU1984/000265
Other languages
English (en)
Inventor
Peter Keating
Kenneth Liall
Original Assignee
Tubemakers Of Australia Pty. Limited
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 Tubemakers Of Australia Pty. Limited filed Critical Tubemakers Of Australia Pty. Limited
Priority to KR1019850700178A priority Critical patent/KR850700119A/ko
Priority claimed from AU37152/84A external-priority patent/AU577081B2/en
Publication of WO1985002796A1 publication Critical patent/WO1985002796A1/fr

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21BROLLING OF METAL
    • B21B43/00Cooling beds, whether stationary or moving; Means specially associated with cooling beds, e.g. for braking work or for transferring it to or from the bed
    • B21B43/04Cooling beds comprising rolls or worms

Definitions

  • the present invention relates to a roller cooling table.
  • a conventional cooling table 1 consist of a horizontal array of water cooled rolls 2 onto which the hot finished pipes 3 are fed where upon the pipes 3 are rotated and transported to the exit side of the table and discharged in a straight cool condition.
  • a typical cooling table could consist-'of 48 water cooled pipes 330 mm in diameter and 8.6 m in length. The roll diameters, number of rolls, length of table, speed of rotation, and flow of cooling water are chosen to achieve the desired rate of cooling for the intended range of pipe sizes and output rates.
  • the pipes 1 In operation, depending upon the size of the pipes to be cooled, the pipes 1 rotate in the V-spaces 4 between adjacent rolls 2 in twos or threes and are moved one at a time into the adjacent V-spaces by an additional pipe being transported into the particular V-space.
  • a problem with these conventional cooling tables is that small size pipes, such as 15 and 20 mm nominal bore, do not always remain parallel and straight, but become entangled with each other and cool in a bent condition. requiring re-straightening. Thus reducing the efficiency of the operation.
  • the present invention seeks to ameliorate this problem by providing a roller cooling table having at least a first group of rollers at the entrance side of the table located in a generally downwardly sloping plane.
  • the first rollers are smaller in diameter than the remaining group of rollers.
  • Figure 2 illustrates the first group of rolls of one embodiment of the present invention.
  • FIG 3 illustrates a stretch reducing mill runout of an embodiment of the present invention.
  • the cooling table comprises interlocked castellated water cooled rolls 5, the first seven rolls 5, adjacent the kick-off table 6 are 220 mm in diameter, with the eighth roll 7 being 243 mm in diameter. These rolls are arranged in a generally downwardly sloping plane, and are followed by a horizontal array of 330 mm diameter rolls 8.
  • the sloping of the plane of the first rolls reduces the number of pipes that can be held in the V-space 4 between rolls 5 and uses gravity to assist forward pipe travel.
  • the use of the smaller rolls in the first group of rolls adjacent the kick-off 6 from the stretch reducing mill runout further reduces the number of pipes in the V-spaces between rolls.
  • a variable speed drive can be fitted to the rolls on the entry side of the table.
  • the pipes 3 leave the stretch reducing mill on the runout 9 and travel in the direction of the arrow 10.
  • the paddles 12 are used to kick-off the pipe down the sloping skid plate 11 to come to a longitudinal rest abutting against the first roll of the cooling table.
  • the addition of the arrestor plates 13 for pipes travelling along the stretch reducing mill runout conveyor at speeds above 4.5 m/s present the following advantages: . overcomes the difficulty of fine adjustment of the prior art suspended bar; prevents the pipe tail from bending ahead thereby lessening the risk of entanglement; and provides more effective braking thereby allowing removal and use as spares of two paddles and gear box drives.
  • the space required could be saved in future installations, moreover the necessity to engage and disengage gear boxes to extend and reduce length of paddles in unison motion (a task for which it is essential to interrupt production) has been reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Abstract

Table de refroidissement à cylindres (1) pour tuyaux d'acier (3) comportant un groupe de cylindres (5) accouplés, crénelés et refroidis par eau, situés dans un plan incliné généralement vers le bas au côté d'entrée de la table de refroidissement (1) et étant situés près d'un pan de glissement incliné (11) d'une table de séparation (6).
PCT/AU1984/000265 1983-12-20 1984-12-20 Table de refroidissement a cylindres WO1985002796A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019850700178A KR850700119A (ko) 1983-12-20 1984-12-20 로울러 냉각 테이블

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AUPG2909 1983-12-20
AUPG290983 1983-12-20
AU37152/84A AU577081B2 (en) 1983-12-20 1984-12-20 Roller cooling table

Publications (1)

Publication Number Publication Date
WO1985002796A1 true WO1985002796A1 (fr) 1985-07-04

Family

ID=25623916

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1984/000265 WO1985002796A1 (fr) 1983-12-20 1984-12-20 Table de refroidissement a cylindres

Country Status (1)

Country Link
WO (1) WO1985002796A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577081B2 (en) * 1983-12-20 1988-09-15 Tubemakers Of Australia Limited Roller cooling table
CN104209351A (zh) * 2014-08-27 2014-12-17 鞍钢集团工程技术有限公司 具有矫直功能的铰笼式圆盘钢管冷床

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU353767A1 (ru) * Роликовый холодильник для проката
US3534575A (en) * 1966-07-11 1970-10-20 Kocks Gmbh Friedrich Apparatus for straightening hot-rolled tubes
GB1378760A (en) * 1970-12-09 1974-12-27 Kocks Gmbh Friedrich Roller beds for cooling and straightening elongated round articles
SU863040A1 (ru) * 1979-12-17 1981-09-15 Предприятие П/Я В-2869 Устройство дл передачи труб с рольганга на холодильник
FR2531356A1 (fr) * 1982-08-06 1984-02-10 Mannesmann Ag Train de rouleaux d'acces de bancs de refroidissement pour freiner par paliers des barres de laminage

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU353767A1 (ru) * Роликовый холодильник для проката
US3534575A (en) * 1966-07-11 1970-10-20 Kocks Gmbh Friedrich Apparatus for straightening hot-rolled tubes
GB1378760A (en) * 1970-12-09 1974-12-27 Kocks Gmbh Friedrich Roller beds for cooling and straightening elongated round articles
SU863040A1 (ru) * 1979-12-17 1981-09-15 Предприятие П/Я В-2869 Устройство дл передачи труб с рольганга на холодильник
FR2531356A1 (fr) * 1982-08-06 1984-02-10 Mannesmann Ag Train de rouleaux d'acces de bancs de refroidissement pour freiner par paliers des barres de laminage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577081B2 (en) * 1983-12-20 1988-09-15 Tubemakers Of Australia Limited Roller cooling table
CN104209351A (zh) * 2014-08-27 2014-12-17 鞍钢集团工程技术有限公司 具有矫直功能的铰笼式圆盘钢管冷床

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