KR20110047046A - Cooling device for run out table - Google Patents

Cooling device for run out table Download PDF

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Publication number
KR20110047046A
KR20110047046A KR1020090103801A KR20090103801A KR20110047046A KR 20110047046 A KR20110047046 A KR 20110047046A KR 1020090103801 A KR1020090103801 A KR 1020090103801A KR 20090103801 A KR20090103801 A KR 20090103801A KR 20110047046 A KR20110047046 A KR 20110047046A
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South Korea
Prior art keywords
cover plate
unit
discharge hole
guide
opening
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KR1020090103801A
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Korean (ko)
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KR101175782B1 (en
Inventor
송혁진
조상구
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현대제철 주식회사
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Priority to KR1020090103801A priority Critical patent/KR101175782B1/en
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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • 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
    • B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
    • 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
    • B21B45/0233—Spray nozzles, Nozzle headers; Spray systems

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

Abstract

PURPOSE: A cooling device for a runout table is provided to rapidly discharge cooling water through a discharge hole of a guide unit using a spray unit. CONSTITUTION: A cooling device for a runout table comprises a spray unit(10), a guide unit(20), and an opening and closing unit(50). The spray unit sprays cooling water on a material transferred through rollers(30). The guide unit guides the material and has a outlet hole for discharging cooling water. The opening and closing unit opens and closes the outlet hole and comprises a cover plate(51), a moving unit(52), and a controller(53). The cover plate covers the outlet hole and opens the outlet hole after the material passes thrugh the opening and closing unit. The moving unit is coupled to the cover plate and moves the cover plate. The controller controls the moving unit.

Description

런아웃 테이블용 냉각장치{COOLING DEVICE FOR RUN OUT TABLE}Cooling device for runout table {COOLING DEVICE FOR RUN OUT TABLE}

본 발명은 런아웃 테이블용 냉각장치에 관한 것으로서, 보다 상세하게는 소재를 냉각시킨 냉각수의 배출이 원활히 이루어지도록 하여 소재에 냉각수가 잔재하는 것을 방지하는 런아웃 테이블용 냉각장치에 관한 것이다.The present invention relates to a cooler for a runout table, and more particularly to a cooler for a runout table to prevent the remaining coolant in the material to facilitate the discharge of the cooling water to cool the material.

일반적으로 마무리 압연기를 통과한 소재는 런아웃 테이블을 지나 권취기로 이동되어 감긴다. 이러한 런아웃 테이블에는 소재를 안내하기 위해 가이드가 설치된다.In general, the material that has passed through the finish rolling mill is moved past the runout table to the winder and wound up. The runout table is provided with a guide to guide the material.

압연기를 통과한 소재는 런아웃 테이블 상에서 냉각설비를 통해 냉각되는 공정을 거치게 된다.The material passed through the rolling mill is subjected to a process of cooling through a cooling system on the runout table.

이러한 냉각공정은 소재의 강냉을 통해 압연조직을 변태시켜 주며, 이에 의해 소재는 필요한 기계적 성질(인성이나 강도)을 획득하게 된다.This cooling process transforms the rolling structure through the strong cooling of the material, whereby the material acquires the required mechanical properties (toughness or strength).

냉각공정에서는 냉각수를 이용한 수냉방식이 주로 사용된다. 수냉방식은 냉각수가 분출되어 소재와 직접 접촉됨으로써, 소재를 냉각시키는 방식이다.In the cooling process, a water cooling method using cooling water is mainly used. In the water cooling method, cooling water is ejected and comes into direct contact with the material, thereby cooling the material.

한편, 냉각공정에서 소재 냉각을 위해 사용된 냉각수는 냉각탑에서 냉각된 다음 재사용된다.Meanwhile, the cooling water used for material cooling in the cooling process is cooled in the cooling tower and then reused.

상기한 기술구성은 본 발명의 이해를 돕기 위한 배경기술로서, 본 발명이 속하는 기술분야에서 널리 알려진 종래기술을 의미하는 것은 아니다.The technical structure described above is a background technique for assisting the understanding of the present invention, and does not mean the prior art widely known in the technical field to which the present invention belongs.

종래에는 냉각수가 소재를 냉각시킨 다음, 가이드에 부딪혀 소재로 되돌아오게 됨으로써, 잔존하는 냉각수에 의해 소재가 과냉각되어 소재의 기계적 성질이 기대치와 달라지는 문제점이 있다.Conventionally, since the cooling water cools the material and then hits the guide and returns to the material, the material is overcooled by the remaining cooling water, and thus the mechanical properties of the material are different from those expected.

따라서, 이를 개선할 필요성이 요청된다.Therefore, there is a need for improvement.

본 발명은 상기와 같은 문제점을 개선하기 위해 안출된 것으로서, 소재를 냉각시킨 냉각수의 배출이 원활히 이루어지도록 하는 런아웃 테이블용 냉각장치를 제공하는데 그 목적이 있다.The present invention has been made to improve the above problems, and an object of the present invention is to provide a cooler for a runout table to facilitate the discharge of the cooling water to cool the material.

상기와 같은 목적을 달성하기 위하여 본 발명은 롤러를 통해 이동되는 소재에 냉각수를 분사하는 분사부; 및 상기 소재를 안내하고, 상기 분사부를 통해 분사되는 냉각수를 배출하는 배출홀이 형성되는 가이드부를 포함하는 것을 특징으로 하는 런아웃 테이블용 냉각장치를 제공한다.In order to achieve the above object, the present invention is an injection unit for injecting coolant to the material moved through the roller; And a guide part configured to guide the material and to form a discharge hole for discharging the cooling water sprayed through the spraying part.

상기 배출홀을 개폐하는 개폐부를 더 포함하는 것을 특징으로 한다.It characterized in that it further comprises an opening and closing portion for opening and closing the discharge hole.

상기 개폐부는 상기 배출홀을 커버하는 커버판; 상기 커버판과 결합되고 상기 커버판을 이동시키는 이동부; 및 상기 이동부를 제어하는 제어부를 포함하는 것을 특징으로 한다.The opening and closing portion cover plate for covering the discharge hole; A moving part coupled to the cover plate and moving the cover plate; And a control unit for controlling the moving unit.

상기 커버판의 측단부에는 가이드돌기가 돌출 형성되고, 상기 가이드부에는 상기 가이드돌기를 안내하는 가이드홈이 형성되는 것을 특징으로 한다.Guide protrusions protrude from the side end portions of the cover plate, and the guide portions are formed with guide grooves for guiding the guide protrusions.

상기 커버판은 상기 소재가 통과한 다음 상기 배출홀을 개방하도록 상기 제어부에 의해 제어되는 것을 특징으로 한다.The cover plate is controlled by the controller to open the discharge hole after the material passes.

본 발명에 따른 런아웃 테이블용 냉각장치는 분사부를 통해 소재에 분사되는 냉각수가 가이드부의 배출홀을 통해 신속하게 배출되는 효과가 있다.The cooling apparatus for runout table according to the present invention has the effect that the coolant injected to the material through the injection portion is quickly discharged through the discharge hole of the guide portion.

본 발명에 따른 런아웃 테이블용 냉각장치는 소재의 위치에 대응되어 개폐부가 배출홀을 개폐함으로써, 소재가 배출홀로 유입되어 가이드부에 걸리는 것을 방지하는 효과가 있다.The cooling apparatus for runout table according to the present invention has an effect of preventing the material from flowing into the discharge hole and being caught by the guide part by opening and closing the opening and closing part corresponding to the position of the material.

이하, 첨부된 도면들을 참조하여 본 발명에 따른 런아웃 테이블용 냉각장치의 실시예를 설명한다. 이러한 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로써, 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로, 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 내려져야 할 것이다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of a cooling device for a runout table according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom. Therefore, definitions of these terms should be made based on the contents throughout the specification.

도 1은 본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치에서 배출홀이 폐쇄된 상태를 도시한 도면이고, 도 2는 본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치에서 배출홀이 개방된 상태를 도시한 도면이다.1 is a view showing a state in which the discharge hole is closed in the runout table cooling apparatus according to an embodiment of the present invention, Figure 2 is a discharge hole in the runout table cooling apparatus according to an embodiment of the present invention It is a figure which shows the state.

도 1과 도 2를 참조하면, 본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치(1)에는 분사부(10)와 가이드부(20)가 구비된다.1 and 2, the runout table cooling apparatus 1 according to an embodiment of the present invention is provided with an injection unit 10 and the guide unit 20.

분사부(10)는 소재(40)에 냉각수를 분사한다. 소재(40)는 다수의 롤러(30)에 의해 이동되고, 분사부(10)는 고정된 위치에서 이동되는 소재(40)에 냉각수를 분사하여 소재(40)를 냉각시킨다. The injection unit 10 injects coolant to the material 40. The raw material 40 is moved by a plurality of rollers 30, and the injection unit 10 cools the raw material 40 by spraying cooling water onto the raw material 40 which is moved at a fixed position.

가이드부(20)는 소재(40)가 롤러(30)에서 이탈되지 않도록 안내한다. 이러한 가이드부(20)에는 냉각수 배출을 위한 배출홀(21)이 형성된다.The guide part 20 guides the material 40 not to be separated from the roller 30. The guide portion 20 is formed with a discharge hole 21 for discharging the cooling water.

따라서, 소재(40)의 측방향에 위치되는 분사부(10)를 통해 분사되는 냉각수는 소재(40)를 냉각시킨 다음, 배출홀(21)을 통해 배출된다.Therefore, the coolant injected through the injection unit 10 located in the lateral direction of the raw material 40 cools the raw material 40 and then is discharged through the discharge hole 21.

본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치(1)에는 개폐부(50)가 더 구비된다. 이러한 개폐부(50)는 배출홀(21)을 개폐하는 것으로서, 커버판(51), 이동부(52) 및 제어부(53)가 구비된다.The run-out table cooling apparatus 1 according to an embodiment of the present invention is further provided with an opening and closing part 50. The opening and closing part 50 opens and closes the discharge hole 21, and is provided with a cover plate 51, a moving part 52, and a controller 53.

커버판(51)은 배출홀(21)을 커버한다. 이러한 커버판(51)은 소재(40)가 배출홀(21)로 이탈되는 것을 방지한다.The cover plate 51 covers the discharge hole 21. The cover plate 51 prevents the material 40 from being separated into the discharge hole 21.

이동부(52)는 커버판(51)과 결합되어, 커버판(51)을 이동시킨다. 이러한 이동부(52)는 가이드부(20)의 상단부에 결합되는 고정체(54)에 의해 지지되어 커버판(51)의 상방에 위치되고, 자체 길이가 가변된다.The moving unit 52 is coupled to the cover plate 51 to move the cover plate 51. The moving part 52 is supported by the fixing body 54 coupled to the upper end of the guide part 20 and positioned above the cover plate 51, and its length is variable.

이동부(52)의 길이 변화에 따라 커버판(51)이 상방으로 이동되면 배출홀(21)이 개방되고, 커버판(51)이 하방으로 이동되면 배출홀(21)이 폐쇄된다. When the cover plate 51 is moved upward according to the change in the length of the moving part 52, the discharge hole 21 is opened, and when the cover plate 51 is moved downward, the discharge hole 21 is closed.

커버판(51)의 측단부에는 가이드돌기(51a)가 돌출 형성되고, 가이드부(20)에는 가이드돌기(51a)를 안내하는 가이드홈(21a)이 형성된다. Guide protrusions 51a protrude from the side end portions of the cover plate 51, and guide grooves 21a for guiding the guide protrusions 51a are formed in the guide portion 20.

따라서, 커버판(51)이 상하로 이동될 때, 가이드돌기(51a)는 가이드홈(21a)에 삽입되어 이동되므로, 커버판(51)이 가이드부(20)에서 이탈되지 않게 된다.Therefore, when the cover plate 51 is moved up and down, the guide protrusion 51a is inserted into the guide groove 21a and moved so that the cover plate 51 is not separated from the guide portion 20.

제어부(53)는 이동부(52)를 제어하여 커버판(51)의 이동을 조절한다.The control unit 53 controls the moving unit 52 to adjust the movement of the cover plate 51.

바람직하게는, 커버판(51)이 소재(40)를 안내하는 기능을 수행한 다음, 배출홀(21)을 개방한다. Preferably, the cover plate 51 performs the function of guiding the material 40, and then opens the discharge hole 21.

즉, 소재(40)의 전단부가 커버판(51)을 지난 후에 커버판(51)이 상방으로 이동되어 배출홀(21)을 개방하고, 분사부(10)에서 분사되는 냉각수는 소재(40)를 냉각시킨 후 배출홀(21)을 통해 배출된다.That is, after the front end of the material 40 passes through the cover plate 51, the cover plate 51 is moved upward to open the discharge hole 21, and the coolant injected from the injection part 10 is the material 40. After cooling it is discharged through the discharge hole (21).

이를 위해, 제어부(53)는 소재(40)의 위치를 감지하는 감지부(60)와 연계된다. 이러한 감지부(60)는 소재(40)의 속도를 측정하여 제어부(53)에 전송한다.To this end, the control unit 53 is associated with the detection unit 60 for detecting the position of the material 40. The detection unit 60 measures the speed of the material 40 and transmits it to the control unit 53.

그리하면, 제어부(53)는 감지부(60)를 통과한 소재(40)가 커버판(51)에 도달하는 시간을 계산한 후, 소재(40)의 전단부가 커버판(51)을 지나친 후 커버판(51)이 상방으로 이동되도록 이동부(52)를 제어한다.Then, the control unit 53 calculates the time that the material 40 passing through the sensing unit 60 reaches the cover plate 51, and then after the front end of the material 40 passes the cover plate 51. The moving unit 52 is controlled to move the cover plate 51 upward.

한편, 감지부(60)는 소재(40)의 온도를 측정하여 분사부(10)에 전송한다. 그리하면, 분사부(10)는 소재(40)의 온도에 따라 냉각수의 분사량을 조절하여 소재(40)를 냉각시킨다. 이러한 분사부(10)는 제어부(53)의 신호에 따라 분사시기가 조절되어도 무방하다.On the other hand, the detection unit 60 measures the temperature of the material 40 and transmits it to the injection unit 10. Then, the injection unit 10 cools the material 40 by adjusting the injection amount of the cooling water according to the temperature of the material 40. The injection unit 10 may be controlled by the injection timing in accordance with the signal from the control unit 53.

상기와 같은 구조를 갖는 본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치의 작용을 설명하면 다음과 같다.Referring to the operation of the cooling device for a runout table according to an embodiment of the present invention having the structure as described above are as follows.

롤러(30)에 의해 이동되는 소재(40)는 가이드부(20)에 의해 좌우로 이탈되지 않고 권취기로 안내된다.The material 40 moved by the roller 30 is guided to the winder without being separated from side to side by the guide part 20.

소재(40)가 이동될 때, 분사부(10)는 소재(40)에 냉각수를 분사하여 소재(40)를 냉각시킨다. 이때, 소재(40)를 냉각시킨 냉각수는 가이드부(20)에 형성되는 배출홀(21)을 통해 외부로 배출된다.When the material 40 is moved, the injection unit 10 cools the material 40 by spraying cooling water on the material 40. At this time, the coolant having cooled the material 40 is discharged to the outside through the discharge hole 21 formed in the guide portion 20.

이때, 소재(40)의 전단부가 배출홀(21)로 유입되어 가이드부(20)에 걸리지 않도록, 배출홀(21)을 개폐하는 개폐부(50)가 구비된다.At this time, the opening and closing part 50 for opening and closing the discharge hole 21 is provided so that the front end of the material 40 is introduced into the discharge hole 21 and not caught by the guide part 20.

이러한 개폐부(50)의 커버판(51)은 이동부(52)의 길이 변경에 따라 상하로 이동되어 배출홀(21)을 개폐한다.The cover plate 51 of the opening and closing part 50 is moved up and down in accordance with the change in the length of the moving part 52 to open and close the discharge hole 21.

개폐부(50)의 제어부(53)는 감지부(60)를 통해 소재(40)의 이동속도를 인지하여, 소재(40)에 대한 위치 추정이 가능하다. The control unit 53 of the opening and closing unit 50 recognizes the moving speed of the material 40 through the sensing unit 60, and thus may estimate the position of the material 40.

따라서, 제어부(53)는 소재(40)의 전단부가 배출홀(21)에 도달할 때까지 이동부(52)를 제어하여 커버판(51)이 배출홀(21)을 커버하도록 하고, 소재(40)의 전단부가 배출홀(21)을 지나치면 이동부(52)를 제어하여 커버판(51)이 배출홀(21)을 개방하도록 한다.Accordingly, the control unit 53 controls the moving unit 52 until the front end of the material 40 reaches the discharge hole 21 so that the cover plate 51 covers the discharge hole 21, and the material ( When the front end of the 40 passes the discharge hole 21, the moving part 52 is controlled so that the cover plate 51 opens the discharge hole 21.

한편, 분사부(10)는 커버판(51)이 상방으로 이동되어 배출홀(21)을 개방할 때, 소재(40)에 냉각수를 분사한다. 그리하면, 소재(40)를 냉각시킨 냉각수가 배출홀(21)을 통해 신속하게 배출된다.On the other hand, the injection unit 10 injects cooling water to the material 40 when the cover plate 51 is moved upward to open the discharge hole 21. Then, the coolant having cooled the material 40 is quickly discharged through the discharge hole 21.

본 발명은 도면에 도시된 실시예를 참고로 하여 설명되었으나, 이는 예시적인 것에 불과하며, 당해 기술이 속하는 분야에서 통상의 지식을 가진 자라면 이로부터 다양한 변형 및 균등한 타 실시예가 가능하다는 점을 이해할 것이다.Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and those skilled in the art to which the art belongs can make various modifications and other equivalent embodiments therefrom. I will understand.

따라서, 본 발명의 진정한 기술적 보호범위는 아래의 특허청구범위에 의해서 정하여져야 할 것이다.Therefore, the true technical protection scope of the present invention will be defined by the claims below.

도 1은 본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치에서 배출홀이 폐쇄된 상태를 도시한 도면이다.1 is a view showing a state in which the discharge hole is closed in the cooling device for a runout table according to an embodiment of the present invention.

도 2는 본 발명의 일 실시예에 따른 런아웃 테이블용 냉각장치에서 배출홀이 개방된 상태를 도시한 도면이다.2 is a view showing a state in which the discharge hole is opened in the cooling device for a runout table according to an embodiment of the present invention.

*도면의 주요부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

10 : 분사부 20 : 가이드부10: injection part 20: guide part

21 : 배출홀 30 : 롤러21: discharge hole 30: roller

40 : 소재 50 : 개폐부40: material 50: opening and closing

51 : 커버판 52 : 이동부51: cover plate 52: moving part

53 : 제어부 60 : 감지부53: control unit 60: detection unit

Claims (5)

롤러를 통해 이동되는 소재에 냉각수를 분사하는 분사부; 및An injection unit for injecting coolant into the material moved through the roller; And 상기 소재를 안내하고, 상기 분사부를 통해 분사되는 냉각수를 배출하는 배출홀이 형성되는 가이드부를 포함하는 것을 특징으로 하는 런아웃 테이블용 냉각장치.And a guide part configured to guide the material and to form a discharge hole for discharging the coolant sprayed through the spraying part. 제 1항에 있어서,The method of claim 1, 상기 배출홀을 개폐하는 개폐부를 더 포함하는 것을 특징으로 하는 런아웃 테이블용 냉각장치.Cooling apparatus for runout table further comprises an opening and closing portion for opening and closing the discharge hole. 제 2항에 있어서, 상기 개폐부는The method of claim 2, wherein the opening and closing portion 상기 배출홀을 커버하는 커버판; A cover plate covering the discharge hole; 상기 커버판과 결합되고 상기 커버판을 이동시키는 이동부; 및A moving part coupled to the cover plate and moving the cover plate; And 상기 이동부를 제어하는 제어부를 포함하는 것을 특징으로 하는 런아웃 테이블용 냉각장치.And a control unit for controlling the moving unit. 제 3항에 있어서,The method of claim 3, 상기 커버판의 측단부에는 가이드돌기가 돌출 형성되고, Guide protrusions are formed on the side end of the cover plate, 상기 가이드부에는 상기 가이드돌기를 안내하는 가이드홈이 형성되는 것을 특징으로 하는 런아웃 테이블용 냉각장치.Cooling device for runout table, characterized in that the guide portion is formed with a guide groove for guiding the guide projection. 제 3항에 있어서,The method of claim 3, 상기 커버판은 상기 소재가 통과한 다음 상기 배출홀을 개방하도록 상기 제어부에 의해 제어되는 것을 특징으로 하는 런아웃 테이블용 냉각장치.And the cover plate is controlled by the controller to open the discharge hole after the material passes.
KR1020090103801A 2009-10-29 2009-10-29 Cooling device for run out table KR101175782B1 (en)

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JPH06247B2 (en) 1984-10-02 1994-01-05 石川島播磨重工業株式会社 Side guide device
JP3644140B2 (en) * 1996-07-29 2005-04-27 Ｊｆｅスチール株式会社 High temperature metal plate cooling system
JPH11197734A (en) 1998-01-21 1999-07-27 Sumitomo Metal Ind Ltd Method and device for ejecting draining spray for hot-rolled steel plate

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