KR20040088298A - Strip floating device in apron of table roller - Google Patents

Strip floating device in apron of table roller Download PDF

Info

Publication number
KR20040088298A
KR20040088298A KR1020030022436A KR20030022436A KR20040088298A KR 20040088298 A KR20040088298 A KR 20040088298A KR 1020030022436 A KR1020030022436 A KR 1020030022436A KR 20030022436 A KR20030022436 A KR 20030022436A KR 20040088298 A KR20040088298 A KR 20040088298A
Authority
KR
South Korea
Prior art keywords
apron
strip
table roller
injection holes
cooling water
Prior art date
Application number
KR1020030022436A
Other languages
Korean (ko)
Inventor
하굉수
윤창국
홍상덕
Original Assignee
주식회사 포스코
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 주식회사 포스코 filed Critical 주식회사 포스코
Priority to KR1020030022436A priority Critical patent/KR20040088298A/en
Publication of KR20040088298A publication Critical patent/KR20040088298A/en

Links

Classifications

    • 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
    • B21B39/14—Guiding, positioning or aligning work
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Heat Treatment Of Strip Materials And Filament Materials (AREA)

Abstract

PURPOSE: A device for floating strip transferred in apron of table roller is provided to stably operate facility through cooling of the apron by spraying cooling water onto the upper surface of the apron and manufacture strip products of high quality by forming a water curtain on the apron, thereby minimizing friction of the apron with the strip. CONSTITUTION: The device comprises a water jacket(10) cohesively fixed to the lower surface of the apron(2) of the table rollers(1) for transferring the strip; injection holes(14) which are vertically penetratingly formed on the apron in such a way that the injection holes are communicated with the water jacket; and a cooling water supply line(18) which connects the water jacket and cooling water supply source(20), and on which a cutout valve is formed, wherein the injection holes are formed in such a nozzle shape that diameter of the injection holes is gradually reduced as it goes from the lower side to the upper side of the injection holes.

Description

테이블롤러 에이프런에서의 이송스트립 부상장치{STRIP FLOATING DEVICE IN APRON OF TABLE ROLLER}Transport strip floating device on apron of table rollers {STRIP FLOATING DEVICE IN APRON OF TABLE ROLLER}

본 발명은 압연된 고온의 스트립을 권취기로 이송시킬 때에 테이블롤러중에 설치되어 스트립의 이송을 안내하는 에이프런이 과열팽창되는 것을 방지함과 동시에 스트립 통판시 수막을 형성하여 그 하단면에 형성되는 긁힌흠을 억제토록 개선된 테이블롤러 에이프런에서의 이송 스트립 부상장치에 관한 것이다.The present invention prevents overheating of the apron that is installed in the table roller and guides the transfer of the strip when transferring the rolled hot strip to the winder, and at the same time, a scratch is formed on the bottom surface by forming a water film when the strip is passed. It relates to a conveying strip floating apparatus in a table roller apron which is improved to suppress the pressure.

통상, 압연된 스트립을 권취기로 이송시키는 테이블롤러중에는 에이프런이 설치된다.Usually, an apron is installed in the table roller which transfers a rolled strip to a winding machine.

이러한 에이프런은 도 1의 도시와 같이, 스트립(3)을 안내하기 위한 도시되지 않은 사이드가이드나 혹은 기타 부대설비들을 테이블롤러(1)상에 용이하게 고정시킬 수 있도록 구비되는 보조수단으로서 특히 이들 설비의 장착에 따른 테이블롤러(1)들 사이의 넓어진 간격을 보완하기 위해 구비된다.This apron is an auxiliary means, as shown in FIG. 1, which is provided to easily fix an unshown side guide or other auxiliary equipment for guiding the strip 3 on the table roller 1. It is provided to compensate for the widened gap between the table rollers (1) according to the mounting.

이때, 에이프런(2)은 주행되는 스트립(3)의 최소두께인 대략 1.2mm를 감안하여 그 탑부가 테이블롤러(1)들의 벌어진 간격 사이로 끼임되지 않도록 하기 위해 최소한 0.6~0.8mm 정도 이격되게 조정 관리되고 있다.At this time, the apron 2 is adjusted to be spaced at least 0.6 to 0.8 mm in order to prevent the top portion from being caught between the gaps between the table rollers 1 in consideration of approximately 1.2 mm, which is the minimum thickness of the traveling strip 3. It is becoming.

그런데, 500~750℃ 정도의 고온을 갖는 스트립(3)이 연속적으로 이송되다보면 에이프런(2)이 열팽창되면서 도 2의 도시와 같이 테이블롤러(1)들과 일정간 간격(갭)을 유지하여야 함에도 불구하고 그 갭을 유지하지 못하고 테이블롤러(1)에 밀착되면서 표면마찰에 의한 테이블롤러(1)의 손상을 유발시킬 뿐만 아니라 테이블롤러(1)의 회전상태가 불량하게 됨으로써 이를 구동시키는 모터가 트립되어 이송라인 자체가 정지되는 문제가 야기된다.However, when the strip 3 having a high temperature of about 500 to 750 ° C. is continuously transferred, the apron 2 is thermally expanded and a gap (gap) between the table rollers 1 must be maintained as shown in FIG. 2. Nevertheless, the gap is not maintained and the table roller 1 comes into close contact with the table roller 1, causing damage to the table roller 1, and the rotational state of the table roller 1 becomes poor. The tripping causes a problem that the transfer line itself is stopped.

또한, 테이블롤러(1)의 표면이 손상되었을 때 혹은 구동정지시 그 위를 따라 이송중이던 스트립(3)의 하부면에는 스크래치와 같은 긁힌흠을 유발시켜 제품의 품위를 떨어뜨리게 된다.In addition, when the surface of the table roller (1) is damaged or when the drive is stopped, the lower surface of the strip (3) that is being transported along it causes scratches such as scratches to reduce the product quality.

본 발명은 상술한 바와 같은 종래 기술이 갖는 제반 문제점을 감안하여 이를 해결하고자 창출한 것으로, 압연된 고온의 스트립이 테이블롤러를 통해 권취기로 운반되는 과정에서 에이프런이 과열팽창되는 것을 방지함은 물론 에이프런 상면에서는 수막현상을 일으켜 스트립이 긁힌흠없이 원활하게 이송될 수 있도록 함으로써 생산성 및 이송스트립의 품위향상을 도모할 수 있도록 한 테이블롤러 에이프런에서의 이송 스트립 부상장치를 제공함에 그 목적이 있다.The present invention was created in view of the above-described problems of the prior art as described above, and prevents the apron from overheating and expanding the apron in the process of transporting the rolled hot strip to the winder through the table roller. The object of the present invention is to provide a conveying strip floating device in a table roller apron which can improve the productivity and the quality of the conveying strip by causing water film phenomenon so that the strip can be smoothly conveyed without scratching.

도 1은 종래 기술에 따른 에이프런의 설치상태를 보인 요부 사시도,Figure 1 is a perspective view of the main portion showing the installation state of the apron according to the prior art,

도 2는 도 1의 개략적인 단면도,2 is a schematic cross-sectional view of FIG.

도 3은 본 발명 장치의 설치상태를 보인 요부 사시도,Figure 3 is a perspective view of the main part showing the installation state of the device of the present invention,

도 4는 본 발명 장치의 요부 단면도,4 is a cross-sectional view of main parts of the present invention device;

도 5는 본 발명 장치의 작동상태 일부 단면도.Figure 5 is a partial cross-sectional view of the operating state of the device of the present invention.

* 도면의 주요 부분에 대한 부호의 설명 *Explanation of symbols on the main parts of the drawings

1....테이블롤러 2....에이프런1 .... Table Roller 2 .... Apron

3....스트립 10....워터쟈켓3 .... strip 10 .... water jacket

14....분사공 18....냉각수공급라인14 .... sprayer 18 .... coolant supply line

상기한 목적을 달성하기 위해 본 발명은 스트립 이송용 테이블롤러의 에이프런 하단면에 밀착고정된 워터쟈켓과; 상기 에이프런을 상하방향으로 관통하여 상기 워터쟈켓과 연통되도록 다수 형성된 분사공과; 상기 워터쟈켓과 냉각수공급원을 연결하며 차단밸브를 갖는 냉각수공급라인을 포함하여 구성되는 테이블롤러 에이프런에서의 이송 스트립 부상장치를 제공함에 그 특징이 있다.In order to achieve the above object, the present invention provides a water jacket fixed to the apron bottom surface of the table roller for strip transport; A plurality of injection holes penetrating the apron in a vertical direction to communicate with the water jacket; It is characterized by providing a transport strip floating apparatus in the table roller apron which comprises the cooling water supply line having a shutoff valve and connecting the water jacket and the cooling water supply source.

이하에서는, 첨부도면을 참조하여 본 발명을 보다 상세하게 설명한다.Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

도 3은 본 발명에 따른 스트립 부상장치의 설치상태 요부 사시도이고, 도 4는 본 발명 장치의 일부 단면도이며, 도 5는 본 발명 장치의 작동상태 단면도이다.Figure 3 is a perspective view of the main installation state of the strip floating apparatus according to the present invention, Figure 4 is a partial cross-sectional view of the device of the present invention, Figure 5 is a cross-sectional view of the operating state of the device of the present invention.

도 3 및 도 4에서와 같이, 에이프런(2)의 하단면에는 내부가 비어있는 워터쟈켓(10)이 볼트(12)를 통해 고정된다.3 and 4, the water jacket 10, which is empty inside, is fixed to the lower surface of the apron 2 through the bolt 12. As shown in FIG.

이때, 상기 워터쟈켓(10)과 에이프런(2)의 하단면 사이에는 씰링재가 개재되어 물이 누수되지 않도록 견실히 밀폐시키도록 함이 바람직하다.At this time, it is preferable that the sealing material is interposed between the water jacket 10 and the lower surface of the apron 2 so that the water is tightly sealed so that water does not leak.

아울러, 상기 에이프런(2)의 선단부, 즉 스트립(3)이 테이블롤러(1)를 타고진입되면서 최초 접촉되는 쪽에는 상기 테이블롤러(1)의 길이방향을 따라 다수의 분사공(14)이 일정간격으로 천공형성된다.In addition, a plurality of injection holes 14 along the longitudinal direction of the table roller 1 are fixed to the front end portion of the apron 2, that is, the strip 3 entering and exiting the table roller 1. It is perforated at intervals.

상기 분사공(14)은 상기 에이프런(2)을 상하방향으로 관통하여 상기 워터쟈켓(10)과 연통될 수 있도록 형성된다.The injection hole 14 is formed to communicate with the water jacket 10 through the apron 2 in the vertical direction.

특히, 이 분사공(14)은 그 상단으로 갈수록 좁아지는(직경이 작아지는) 노즐형태를 취하여 노즐 기능을 담당할 수 있도록 함이 바람직하며, 대략 10mm 내외의 직경을 가지도록 함이 바람직하다.In particular, the injection hole 14 preferably takes the form of a nozzle that becomes narrower toward its upper end (diameter becomes smaller) to serve a nozzle function, and preferably has a diameter of about 10 mm.

한편, 워터쟈켓(10)의 하단면 일측에는 호스니플(16)이 고정되고, 이 호스니플(16)에는 냉각수공급라인(18)이 연결된다.On the other hand, the hose nipple 16 is fixed to one side of the bottom surface of the water jacket 10, the cooling water supply line 18 is connected to the hose nipple (16).

냉각수공급라인(18)은 냉각수공급원(20)과 연결되며, 그 길이 일부에는 냉각수의 공급을 단속시킬 수 있는 차단밸브(미도시)가 구비된다.The cooling water supply line 18 is connected to the cooling water supply source 20, and a part of the length of the cooling water supply line 18 is provided with a shutoff valve (not shown) that can control the supply of the cooling water.

이러한 구성으로 이루어진 본 발명의 작동관계는 도 5를 참고하여 설명한다.The operating relationship of the present invention having such a configuration will be described with reference to FIG.

압연이 완료된 스트립(3)이 코일형태로 권취되기 위해 테이블롤러(1)를 통해 권취기측으로 이송되게 된다.The strip 3, which has been rolled, is transferred to the winding machine side through the table roller 1 in order to be wound in a coil form.

이때, 스트립(3)의 진입이 개시되는 순간 냉각수공급라인(18)에 설치된 차단밸브를 개방하게 되면 냉각수가 워터쟈켓(10)으로 급속 충전되게 되고, 일정압 이상이 되면 분사공(14)을 통해 일정 수압으로 분사(출)되게 된다.At this time, when opening of the shutoff valve installed in the cooling water supply line 18 at the moment when the entry of the strip 3 is started, the cooling water is rapidly filled with the water jacket 10, and when the predetermined pressure or more, the injection hole 14 is opened. It is injected (ejected) at a constant hydraulic pressure through.

동시에, 스트립(3)은 테이블롤러(1)를 따라 이송되어 오다가 그 선단부가 상기 에이프런(2)의 선단부, 즉 냉각수가 분출되고 있는 분사공(14)측을 지나게 된다.At the same time, the strip 3 is transported along the table roller 1, and its front end passes through the front end of the apron 2, that is, the injection hole 14 side from which the coolant is ejected.

따라서, 분출된 냉각수는 스트립(3)의 하단면과 충돌된 후 에이프런(2)의 상면으로 비산되게 되는데 이때 비산되는 방향은 스트립(3)의 진행방향을 따르게 된다.Therefore, the ejected coolant is scattered to the upper surface of the apron 2 after colliding with the lower surface of the strip 3, wherein the scattering direction follows the advancing direction of the strip 3.

그러므로, 에이프런(2)은 냉각수에 의해 냉각되게 되므로 스트립(3)를 통해 전도된 열에 의한 팽창이 억제되게 되므로 테이블롤러(1)와의 갭을 일정이상 상시 유지할 수 있게 된다.Therefore, since the apron 2 is cooled by the cooling water, expansion by the heat conducted through the strip 3 is suppressed, so that the gap with the table roller 1 can be maintained at a constant level or more.

또한, 스트립(3)은 그 하단면과 에이프런(2)의 상단면 사이에 비산된 냉각수가 존재하게 되어 수막을 형성시키게 되므로 스트립(3)의 하단면이 에이프런(2)의 상단면과 강하게 접촉되지 않게 되어 스크래치성 결함이 발생하지 않게 된다.In addition, the strip 3 is in contact with the upper surface of the apron 2 because the lower surface and the lower surface of the strip 3 is in contact with the upper surface of the apron 2 to form a water film by the cooling water scattered between the upper surface of the apron 2 This prevents scratch defects from occurring.

이후, 스트립(3)의 권취가 완료되면 차단밸브를 닫아 냉각수의 공급을 차단시키도록 한다.Thereafter, when the winding of the strip 3 is completed, the shutoff valve is closed to cut off the supply of cooling water.

이상에서 상세히 설명한 바와 같이, 본 발명은 에이프런의 상면에 냉각수를 분사시키도록 함으로써 에이프런의 냉각을 통한 설비의 안정적인 운용은 물론 수막현상에 의한 스트립과의 마찰을 극소화시켜 고품위의 스트립 제품을 제조할 수 있게 하여 준다.As described in detail above, the present invention is to produce a high-quality strip product by minimizing the friction with the strip due to the water film phenomenon as well as the stable operation of the equipment by cooling the apron by spraying the cooling water on the upper surface of the apron. To be.

Claims (2)

스트립(3) 이송용 테이블롤러(1)의 에이프런(2) 하단면에 밀착고정된 워터쟈켓(10)과;A water jacket 10 fixed to the bottom surface of the apron 2 of the strip 3 conveying table roller 1; 상기 에이프런(2)을 상하방향으로 관통하여 상기 워터쟈켓(10)과 연통되도록 다수 형성된 분사공(14)과;A plurality of injection holes 14 penetrating the apron 2 in a vertical direction to communicate with the water jacket 10; 상기 워터쟈켓(10)과 냉각수공급원(20)을 연결하며 차단밸브를 갖는 냉각수공급라인(18)을 포함하여 구성되는 것을 특징으로 하는 테이블롤러 에이프런에서의 이송 스트립 부상장치.Conveying strip floating device in a table roller apron characterized in that it comprises a cooling water supply line (18) connecting the water jacket (10) and the cooling water supply source (20) having a shutoff valve. 청구항 1에 있어서,The method according to claim 1, 상기 분사공(14)은 그 상단으로 갈수록 직경이 작아지는 노즐형상인 것을 특징으로 하는 테이블롤러 에이프런에서의 이송 스트립 부상장치.The injection hole (14) is a floating strip floating apparatus in the table roller apron, characterized in that the nozzle shape is reduced in diameter toward the top.
KR1020030022436A 2003-04-09 2003-04-09 Strip floating device in apron of table roller KR20040088298A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020030022436A KR20040088298A (en) 2003-04-09 2003-04-09 Strip floating device in apron of table roller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020030022436A KR20040088298A (en) 2003-04-09 2003-04-09 Strip floating device in apron of table roller

Publications (1)

Publication Number Publication Date
KR20040088298A true KR20040088298A (en) 2004-10-16

Family

ID=37370182

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020030022436A KR20040088298A (en) 2003-04-09 2003-04-09 Strip floating device in apron of table roller

Country Status (1)

Country Link
KR (1) KR20040088298A (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101352097B1 (en) * 2012-05-08 2014-01-15 주식회사 포스코 Apron apparatus of steel sheet
KR101353842B1 (en) * 2011-11-28 2014-01-21 주식회사 포스코 Guide apparatus
KR20150138503A (en) * 2014-05-29 2015-12-10 현대제철 주식회사 Apron apparatus of roller table
KR20170006218A (en) 2015-07-07 2017-01-17 주식회사 포스코 Apparatus for guiding material
CN109108098A (en) * 2018-06-19 2019-01-01 石横特钢集团有限公司 A kind of water tank nozzle system for high line steel rolling production-line
KR20190043649A (en) 2017-09-26 2019-04-29 주식회사 포스코 Apparatus for feeding sheet steel
CN110170537A (en) * 2019-05-21 2019-08-27 河钢股份有限公司承德分公司 Finishing mill outlet transition guide platform
WO2022161721A1 (en) * 2021-02-01 2022-08-04 Sms Group Gmbh Guide table for the guided transfer of a metal strip, and method for operating a guide table of this kind

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03240924A (en) * 1990-02-16 1991-10-28 Ishikawajima Harima Heavy Ind Co Ltd Floating supporting method and device for strip
JPH0788525A (en) * 1993-09-24 1995-04-04 Ishikawajima Harima Heavy Ind Co Ltd Device for adjusting position of strip
KR20000039755A (en) * 1998-12-15 2000-07-05 이구택 Lower cooler for cooling hot rolling plate with water
JP2002001411A (en) * 2000-06-21 2002-01-08 Nippon Steel Corp Hot rolling run out table

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03240924A (en) * 1990-02-16 1991-10-28 Ishikawajima Harima Heavy Ind Co Ltd Floating supporting method and device for strip
JPH0788525A (en) * 1993-09-24 1995-04-04 Ishikawajima Harima Heavy Ind Co Ltd Device for adjusting position of strip
KR20000039755A (en) * 1998-12-15 2000-07-05 이구택 Lower cooler for cooling hot rolling plate with water
JP2002001411A (en) * 2000-06-21 2002-01-08 Nippon Steel Corp Hot rolling run out table

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101353842B1 (en) * 2011-11-28 2014-01-21 주식회사 포스코 Guide apparatus
KR101352097B1 (en) * 2012-05-08 2014-01-15 주식회사 포스코 Apron apparatus of steel sheet
KR20150138503A (en) * 2014-05-29 2015-12-10 현대제철 주식회사 Apron apparatus of roller table
KR20170006218A (en) 2015-07-07 2017-01-17 주식회사 포스코 Apparatus for guiding material
KR20190043649A (en) 2017-09-26 2019-04-29 주식회사 포스코 Apparatus for feeding sheet steel
CN109108098A (en) * 2018-06-19 2019-01-01 石横特钢集团有限公司 A kind of water tank nozzle system for high line steel rolling production-line
CN109108098B (en) * 2018-06-19 2020-04-10 石横特钢集团有限公司 Water tank nozzle system for high-speed wire steel rolling production line
CN110170537A (en) * 2019-05-21 2019-08-27 河钢股份有限公司承德分公司 Finishing mill outlet transition guide platform
WO2022161721A1 (en) * 2021-02-01 2022-08-04 Sms Group Gmbh Guide table for the guided transfer of a metal strip, and method for operating a guide table of this kind
AT18150U1 (en) * 2021-02-01 2024-03-15 Sms Group Gmbh Guide table for the guided transfer of a metal strip and method for operating such a guide table

Similar Documents

Publication Publication Date Title
KR20040088298A (en) Strip floating device in apron of table roller
KR101320126B1 (en) Apparatus for preventing upward movement of strip
KR102328328B1 (en) A Form Molding Device of the Steel Plate
KR101522180B1 (en) 2 roll type coater roll coating device and coating method using the same
KR20120033062A (en) Cooling and transferring apparatus for continuous casting metal
KR101245696B1 (en) Top roll of cooling tower
KR100988150B1 (en) Side sealing apparatus of tube
KR100887409B1 (en) Apparatus for film automatic packing of packing box
KR20090005504A (en) Apparatus for cooling of hot material transfer roll
KR101858854B1 (en) Apparatus for cooling of strip
KR102010365B1 (en) Side guide apparatus for finishing mill
KR101694447B1 (en) Apparatus for cooling materials
KR100435459B1 (en) Movable type cooling apparatus for annealing furnace
KR200319741Y1 (en) Wrapping machine of a package
KR101609672B1 (en) Apparatus for cooling material
KR20040033757A (en) Device for guiding strip in Feeding table
JPS60118360A (en) Installation for producing thin plate at high speed
KR20130034211A (en) An accelerated cooling apparatus
JP6955544B2 (en) Metal strip cooling device
KR100843843B1 (en) Thick Plate Cooling Apparatus
CN206662585U (en) Cooling device for weld seam for hot-rolled stainless steel band continuous annealing pickling line
KR200202430Y1 (en) Apparatus for eliminating hunting and bad transfer of strip during zinc plating process
US20140352911A1 (en) Method of continuously casting thin strip
JPH0238588A (en) Apparatus for pretreatment of pickling
JP2005131677A (en) Cast slab cooling apparatus in continuous casting facility

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E90F Notification of reason for final refusal
E601 Decision to refuse application