WO1985002796A1 - Table de refroidissement a cylindres - Google Patents
Table de refroidissement a cylindres Download PDFInfo
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B43/00—Cooling 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
- B21B43/04—Cooling 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).
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)
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)
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 |
-
1984
- 1984-12-20 WO PCT/AU1984/000265 patent/WO1985002796A1/fr unknown
Patent Citations (5)
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)
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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