EP0001770A1 - Procédé et dispositif de refroidissement pour brames - Google Patents

Procédé et dispositif de refroidissement pour brames Download PDF

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Publication number
EP0001770A1
EP0001770A1 EP78101138A EP78101138A EP0001770A1 EP 0001770 A1 EP0001770 A1 EP 0001770A1 EP 78101138 A EP78101138 A EP 78101138A EP 78101138 A EP78101138 A EP 78101138A EP 0001770 A1 EP0001770 A1 EP 0001770A1
Authority
EP
European Patent Office
Prior art keywords
billets
spray
water jets
cooling
cooling device
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP78101138A
Other languages
German (de)
English (en)
Other versions
EP0001770B1 (fr
Inventor
Horst Ganseuer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemag GmbH
Original Assignee
Siemag Transplan GmbH
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 Siemag Transplan GmbH filed Critical Siemag Transplan GmbH
Publication of EP0001770A1 publication Critical patent/EP0001770A1/fr
Application granted granted Critical
Publication of EP0001770B1 publication Critical patent/EP0001770B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
    • B21B45/0203—Cooling
    • B21B45/0209—Cooling devices, e.g. using gaseous coolants
    • B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes

Definitions

  • the invention relates to a method and a device for cooling billets of square or rectangular cross-section, which are moved by means of a transport device, with water, in which the billets are simultaneously acted upon from opposite sides by converging water jets.
  • This so-called spray cooling has the essential advantage over immersion cooling that the rolling stock or the continuous casting can be acted upon on the way over the predetermined cooling section with precisely defined amounts of water, so that the cooling process can easily be optimally adjusted.
  • the undesirable curving and / or twisting of the rolling or continuous casting means is apparently due to the fact that attempts were made to cool the billets in the same way as for cooling the billets, such as when cooling slabs , Blocks and rolled strip.
  • the purpose of the invention is to eliminate the disadvantages inherent in the known types of spray cooling for roll or continuous casting billets.
  • this problem is essentially solved in that the billets are acted upon by water jets along or approximately along their diagonals and at the same time and uniformly on all the tear surfaces.
  • the billets are guided continuously in the crossing plane of both water beams in the direction of their longitudinal axis and with a predetermined lagonal plane.
  • the billets can also be used in accordance with the invention transversely to their longitudinal axis and with a predetermined diagonal plane are only temporarily transported lying in the crossing plane of the two water jets.
  • This cooling process can be used particularly where the billets, after they have left the roller mill or the continuous casting installation, are transported on a cross conveyor.
  • an essential feature of the method is that a distance is maintained between a plurality of billets moving in a direction parallel to one another. This distance should be adjusted to the cross-sectional dimension of the billet. Only in this way can it be ensured that all side surfaces of the billets are simultaneously and specifically wetted with sarah water.
  • the billets can be guided horizontally past the water jets. In some cases, however, they can easily be transported vertically hanging from the water jets.
  • a cooling device for carrying out the method according to the invention which is equipped with a transport device and 3 spray nozzles for water arranged on opposite sides of the billet passage area, is mainly characterized in that the spray width of the spray nozzles is essentially matched to the total width of the billet surfaces facing them and the transport plane the transport device runs at an acute angle or parallel to a certain diagonal plane of the cross-section of the billet.
  • the spray width of the spray nozzles can be changed. According to the invention, this can be done in an advantageous manner in that, with a diverging spray angle, the spray width can be varied by changing the distance of the spray nozzles from the stick passage area.
  • the transport device moving the billets in the direction of their longitudinal axis can be a roller table. It is particularly advantageous if the transport device has several billet conveyor tracks next to one another and each of the same spray nozzles is assigned.
  • the transport device which moves the billets transversely to their longitudinal axis can be a drag chain, walking beam or rake conveyor to which rows of spray nozzles are assigned over a width corresponding to the maximum billet length.
  • the spray nozzles of each row of nozzles can be operated individually and independently of one another, so that the operating range of the cooling device can be matched to the length of the billet to be cooled without difficulty.
  • billets 2 are transported lying on one of their side surfaces in the direction of their longitudinal axis on a roller table.
  • spray nozzles 4 and 5 are mounted in radii parallel to the transport direction, which are supplied with water by pipes 6 and 7.
  • the arrangement of the spray nozzles 4 and 5 is drawn here so that their main spray axis each has a position inclined by 45 ° relative to the transport plane 3-3 and cuts the edge of the stick 2 running on the roller table 1 that faces them.
  • the inclination of the jet will be set somewhat differently than drawn. It is obvious that care must be taken to ensure that more cooling water than the vertical side surfaces has to be supplied, for example, to the lower surface of the billet 2 in order to achieve uniform cooling. Therefore you will e.g. Arrange the spray nozzle 5 at an angle slightly greater than 45 ° to the transport plane 3-3.
  • the vertical distance 9 thereof from the transport plane 3-3 is set such that the water jets emerging from the spray nozzles 4 and 5 simultaneously coat two surfaces of the billet 2 running on the roller table 1 at right angles to each other and wet them accordingly with cooling water.
  • the spray cooling device differs from that according to FIGS. 1 and 2 essentially in that the billets 2 are transported on the roller table 1 in a skewed position.
  • their distance 9 from the transport plane is set such that each of the spray nozzles 4 and 5 fully covers two side surfaces of the stick 2 which are at right angles to one another. A uniform cooling of all side surfaces of the stick 2 is guaranteed.
  • 5 and 6 show a spray cooling device for billets 12 which are moved transversely to their longitudinal axis and lying on one of their side surfaces, for example with the aid of a walking beam transport device, step by step over the transport plane 13.
  • the spray nozzles 14 and 15 of each row are aligned so that their main spray axis is at an adjustable angle to the transport plane 13-13.
  • the spray cooling device according to FIGS. 7 and 8 differs from that according to FIGS. 5 and 6 essentially only in that the billets 12 are transported in a spiked edge position on the transport device 11, which is designed, for example, as a rake cooling bed.
  • the billets 12 are gradually transported in the direction transverse to their longitudinal axis and, after each transport step, pass between a different set of spray nozzle rows 14 and 15.
  • the spray cooling devices according to FIGS. 1 to 4 can, if necessary, also be designed so that several sticks lying next to one another and transported in the direction of their longitudinal axis can be treated at the same time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Continuous Casting (AREA)
EP78101138A 1977-11-09 1978-10-13 Procédé et dispositif de refroidissement pour brames Expired EP0001770B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2750085 1977-11-09
DE2750085A DE2750085C2 (de) 1977-11-09 1977-11-09 Verfahren und Vorrichtung zum Kühlen von Knüppeln

Publications (2)

Publication Number Publication Date
EP0001770A1 true EP0001770A1 (fr) 1979-05-16
EP0001770B1 EP0001770B1 (fr) 1980-09-03

Family

ID=6023343

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101138A Expired EP0001770B1 (fr) 1977-11-09 1978-10-13 Procédé et dispositif de refroidissement pour brames

Country Status (5)

Country Link
EP (1) EP0001770B1 (fr)
JP (1) JPS5475414A (fr)
AT (1) AT364749B (fr)
DE (2) DE2750085C2 (fr)
IT (1) IT1100053B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7226343B2 (en) * 2005-05-09 2007-06-05 Gunther Bohler Gmbh Device for abrasive-blasting of workpieces

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140930A1 (de) * 1991-12-09 1993-06-17 Mannesmann Ag Vorrichtung zum kuehlen laengsnahtgeschweisster rohre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558690A (fr) *
FR2104964A1 (en) * 1970-09-10 1972-04-28 Ts Nauchno Issle Reduction of cooling of continuous castings - in secondary cooling zo
DE2263755A1 (de) * 1971-12-29 1973-07-05 Nippon Steel Corp Verfahren und vorrichtung zum schnellen abkuehlen von hochtemperaturmetallwerkstuecken
DE2361305A1 (de) * 1973-12-08 1975-06-12 Kessler & Luch Kg Vorrichtung zum kuehlen von metallprofilen
US3889507A (en) * 1973-11-15 1975-06-17 Bethlehem Steel Corp Apparatus for cooling a steel member while being rolled on a continuous hot-rolling mill

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE558690A (fr) *
FR2104964A1 (en) * 1970-09-10 1972-04-28 Ts Nauchno Issle Reduction of cooling of continuous castings - in secondary cooling zo
DE2263755A1 (de) * 1971-12-29 1973-07-05 Nippon Steel Corp Verfahren und vorrichtung zum schnellen abkuehlen von hochtemperaturmetallwerkstuecken
US3889507A (en) * 1973-11-15 1975-06-17 Bethlehem Steel Corp Apparatus for cooling a steel member while being rolled on a continuous hot-rolling mill
DE2361305A1 (de) * 1973-12-08 1975-06-12 Kessler & Luch Kg Vorrichtung zum kuehlen von metallprofilen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7226343B2 (en) * 2005-05-09 2007-06-05 Gunther Bohler Gmbh Device for abrasive-blasting of workpieces

Also Published As

Publication number Publication date
DE2860151D1 (en) 1980-12-11
AT364749B (de) 1981-11-10
DE2750085C2 (de) 1979-12-13
IT7829399A0 (it) 1978-11-03
ATA787478A (de) 1981-04-15
IT1100053B (it) 1985-09-28
JPS5475414A (en) 1979-06-16
EP0001770B1 (fr) 1980-09-03
DE2750085B1 (de) 1979-04-26

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