JPH02151312A - Apparatus and method for controlling temperature of hot strip - Google Patents
Apparatus and method for controlling temperature of hot stripInfo
- Publication number
- JPH02151312A JPH02151312A JP63300985A JP30098588A JPH02151312A JP H02151312 A JPH02151312 A JP H02151312A JP 63300985 A JP63300985 A JP 63300985A JP 30098588 A JP30098588 A JP 30098588A JP H02151312 A JPH02151312 A JP H02151312A
- Authority
- JP
- Japan
- Prior art keywords
- strip
- tube body
- width direction
- temperature control
- armatures
- 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
Links
- 238000000034 method Methods 0.000 title claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000000696 magnetic material Substances 0.000 claims description 4
- 238000005098 hot rolling Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 101100520159 Arabidopsis thaliana PIS2 gene Proteins 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
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
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
- B21B37/76—Cooling control on the run-out table
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、ホットストリップの温度制御装置及び制御方
法に関し、幅方向の水噴射幅を自在に制御することによ
り、ホットストリップの幅方向の温度を自在に制御する
ことができる装置とその制御方法に関するものである。Detailed Description of the Invention [Industrial Application Field] The present invention relates to a hot strip temperature control device and a control method, and the present invention relates to a hot strip temperature control device and control method, and the present invention relates to a hot strip temperature control device and a control method. This invention relates to a device that can freely control and a control method thereof.
従来、用いられでいたホットストリップの温度制御装置
及び制御方法としては種々あるが、その中で代表的な構
成について述べると、実閉昭６３−１３３８０７号公報
及び特開昭５９−８７９１５号公報に開示されているよ
うに、多数の噴射ノズルをストリップの幅方向に並設し
、各噴射ノズルの作動を選択的に制御してストリップの
幅方向の温度を制御するｐＩＳ１従米例従来案されてい
る。There are various temperature control devices and control methods for hot strips that have not been used in the past, but representative configurations are described in Japanese Patent Publication No. 63-133807 and Japanese Unexamined Patent Publication No. 59-87915. As disclosed, a pIS1 conventional example has been proposed in which a large number of injection nozzles are arranged in parallel in the width direction of the strip and the operation of each injection nozzle is selectively controlled to control the temperature in the width direction of the strip. .
又、文献名は開示していないが噴射ノズルを有するパイ
プラミナー又はスリットラミナーの長手方向に位置制御
可能な樋を設け、この樋によって水切りを行い、ストリ
ップの幅方向の温度を制御するシステムからなる第２従
来例が提案されている。Although the name of the document is not disclosed, this system consists of a system in which a pipe laminar or slit laminar having an injection nozzle is provided with a gutter whose position can be controlled in the longitudinal direction, and this gutter drains water to control the temperature in the width direction of the strip. A second conventional example has been proposed.
従来のホットストリップの温度制御装置及び制御方法は
、以上のように構成されていたため、次のような課題を
有しでいた。Since the conventional hot strip temperature control device and control method were configured as described above, they had the following problems.
すなわち、前述の各公報に開示されていた第１従来例の
構成の場合、樋を移動させる機構部が複雑且つ大がかり
となり、信頼性とコストの面で問題が存在していた。又
、ミスロール発生時にはヘッダーを逃すｆＪ造を用いな
ければならない等の制約によって、取付に困難があり、
現在のところ実用化されていない。That is, in the case of the configuration of the first conventional example disclosed in each of the above-mentioned publications, the mechanism for moving the gutter was complicated and large-scale, and there were problems in terms of reliability and cost. In addition, installation is difficult due to restrictions such as having to use an fJ structure that allows the header to escape when a misroll occurs.
It has not been put into practical use at present.
又、スリットラミナーの樋弐幅方向の温度制御について
は、実用化されているが、スリットラミナー自体が有す
る冷却特性（１ヘツグー当たりの冷却能力が大きすぎて
細かい温度制御が不可）から実際のラインへの適ｍには
問題があり、実用化が困難であった。Furthermore, temperature control in the gutter width direction of slit laminars has been put into practical use, but due to the cooling characteristics of the slit laminar itself (the cooling capacity per groove is too large, detailed temperature control is not possible), it is difficult to control the temperature in the actual line. There were problems in its suitability for use, making it difficult to put it into practical use.
従って、ス） ｌ）ツブ両端の品質が安定しないために
、圧延後、両端をトリミングによって切除していたこと
により、歩留まりが大巾に１氏下していた。Therefore, (i) l) Since the quality of both ends of the whelk was not stable, both ends were removed by trimming after rolling, and the yield was significantly lowered by one millimeter.
本発明は、以上のような課題を解決するためになされた
乙ので、特に、幅方向の水噴射幅を自在に制御すること
により、ストリップの幅方向の温度を自在に制御するこ
とができるようにした熱間圧延設備におけるホントスト
リップの温度毒ＩＩ御装置及び制御方法を提供すること
をｎ的とする６〔課題を解決するだめの手段〕
本発明によるホットストリップの温度制御装置は、長手
形状に構成された管体と、前記管体に設けられた複数の
ノズルと、前記管体の外周に設けられ各々独立して励磁
可能な複数の電磁フィルと、前記管体内に移動可能に設
けられ磁性材よりなるアマチュアと、前記各電磁コイル
に通電するためのエツジ温度コントローラとを備えた構
成である。The present invention has been made to solve the above-mentioned problems, and in particular, it is possible to freely control the temperature in the width direction of the strip by freely controlling the water jet width in the width direction. It is an object of the present invention to provide a hot strip temperature control device and a control method in a hot rolling facility having a longitudinal shape. a plurality of nozzles provided on the tubular body; a plurality of electromagnetic filters provided on the outer periphery of the tubular body and each of which can be independently excited; and a plurality of electromagnetic filters movably provided within the tubular body. This configuration includes an armature made of a magnetic material and an edge temperature controller for energizing each of the electromagnetic coils.
又、他の発明であるホットストリップの温度制御方法は
、長手形状に構成され電磁コイル及びアマチュアを有す
る管体のノズルから冷却水を走行するストリップに供給
してストリップの冷却を行うようにしたものにおいて、
前記ストリップの蛇行状態を蛇行センサによって検出す
るＰｔ５ｌ工程と、前記蛇行センサからの蛇行センサー
信号に基づいて前記管体内のアマチュアの位置を制御す
るＰｔ５２工程とよりな９、前記ストリップの幅方向へ
の冷却水の供給状態を変えるようにした方向である。Another invention is a temperature control method for a hot strip, in which cooling water is supplied to a running strip from a nozzle of a tubular body configured in a longitudinal shape and having an electromagnetic coil and an armature to cool the strip. In,
A Pt5l step in which the meandering state of the strip is detected by a meandering sensor, and a Pt52 step in which the position of the armature in the tube is controlled based on a meandering sensor signal from the meandering sensor. This is a direction in which the supply state of cooling water is changed.
本発明によるホットストリップの温度制御装置及び制御
方法においては、前記各電磁コイルに移動磁界を与えて
前記アマチュアを移動させることにより、前記各ノズル
を選択的に開閉することができ、管体の両端における幅
方向の水の吐出を制御することができる。In the hot strip temperature control device and control method according to the present invention, by applying a moving magnetic field to each of the electromagnetic coils and moving the armature, each nozzle can be selectively opened and closed, and the nozzles can be selectively opened and closed at both ends of the tube body. The discharge of water in the width direction can be controlled.
又、蛇行センサからの蛇行センサー信号に基づいて前記
管体内のアマチュアの位置を制御することにより、スト
リップの両端における幅方向の冷却水の供給状態を変え
ることができ、ストリップの蛇行状態に応じて冷却水の
供給を追随して変更し、常に、ストリップの走行状態に
拘わらず、幅方向の温度を制御することができるため、
幅方向の組織の均一化が可能となる。Furthermore, by controlling the position of the armature in the tube based on the meandering sensor signal from the meandering sensor, the cooling water supply state in the width direction at both ends of the strip can be changed, depending on the meandering state of the strip. By changing the cooling water supply accordingly, the temperature in the width direction can be controlled at all times, regardless of the running condition of the strip.
It becomes possible to make the structure uniform in the width direction.
以下、図面と共に本発明によるホットストリップの温度
制御装置及び温度制御方法の好適な実施例について詳細
に説明する。Hereinafter, preferred embodiments of the hot strip temperature control device and temperature control method according to the present invention will be described in detail with reference to the drawings.
第１図からＰｔ５３図は本発明を示すためのもので、第
１図は全体構造を示す構成図、Ｐｔ５２図はストリツブ
に冷却水を供給する状態を示す斜視図、第３図は第１図
の要部の断面図である。Figures 1 to 53 are for illustrating the present invention. Figure 1 is a block diagram showing the overall structure, Figure 52 is a perspective view showing the state in which cooling water is supplied to the strips, and Figure 3 is the same as Figure 1. FIG.
図において符号１で示されるものは、長手形状をなし非
磁性体よりなる管体であり、この管体１内の長手孔２内
の両端位置には、この長手孔２の内径より若干小径に構
成され磁性材よりなる一対の柱状のアマチュア３及び３
ａが摺動自在に設けられている。What is indicated by the reference numeral 1 in the figure is a tube body made of a non-magnetic material and has a longitudinal shape, and a tube with a diameter slightly smaller than the inner diameter of the longitudinal hole 2 is provided at both ends of the longitudinal hole 2 in the tube body 1. A pair of columnar armatures 3 and 3 made of magnetic material.
a is slidably provided.
前記管体１の外周には、複数のノズル４が艮手力向と直
交する方向において一対ずつ所定の間隔で配設されてお
り、オーバー７０−形の７スル４をｆ１η成すると共に
、各ノズル４間には複数の電磁コイル５が設けられてい
る。On the outer periphery of the tubular body 1, a plurality of nozzles 4 are arranged in pairs at predetermined intervals in a direction perpendicular to the direction of force applied by the hand. A plurality of electromagnetic coils 5 are provided between the nozzles 4.
前述の各電磁コイル５のうち、前記管体１の両端におけ
る各々５個組のノズル５ａ〜５ｅ及び５ａ’ 〜５ｅ’
に対しては、電源６に接続されたＧＴＯサイリスタ５１
〜Ｓ、及びＳ １１ 〜Ｓ１５が設けられており、各サ
イリスタＳ１〜Ｓ、及びＳ゛、〜Ｓ゛５はエツジ温度コ
ントローラ７に接続されている。Among the electromagnetic coils 5 described above, sets of five nozzles 5a to 5e and 5a' to 5e' are located at both ends of the tube body 1.
, the GTO thyristor 51 connected to the power supply 6
~S, and S11~S15 are provided, and each thyristor S1~S, S', ~S'5 is connected to the edge temperature controller 7.
このエツジ温度コントローラ７１こは、ストリップ８を
定速で搬送する各ローラテーブル９と並列に設けられた
蛇行センサ１０からの蛇行センサー信号１０ａ１励磁時
期を制御するためのストリップ８の搬送情報であるトラ
ッキング信号１１及びこのエツジ温度コントローラ７の
作動の大切を行うためのエッソコントロール人切４３号
１２が入力されている。This edge temperature controller 71 receives a meandering sensor signal 10a1 from a meandering sensor 10 provided in parallel with each roller table 9 that conveys the strip 8 at a constant speed. Tracking is conveyance information of the strip 8 for controlling the excitation timing. A signal 11 and an Esso control Hitokiri No. 43 12 for controlling the operation of this edge temperature controller 7 are input.
本発明は以上のようにＩ：７成されており、以下に、そ
の動作について説明する。The present invention has an I:7 structure as described above, and its operation will be explained below.
まず、管体１内に冷却水を圧送した状態とすると、各ノ
ズル４からオーバー７０−水として、冷却水がストリッ
プ８に対して落下供給される。First, when the cooling water is pumped into the pipe body 1, the cooling water is supplied to the strip 8 by falling from each nozzle 4 as overwater 70-water.
前述の状態で、蛇行センサ１０からの蛇行センサー信号
１０ａに基づいて、エツジ温度コントローラ７からの制
御信号７ａ及び７ｂが各サイリスタ８１〜Ｓ、及びＳ
＋１〜Ｓ＋、に供給されることにより、各サイリスタＳ
１〜Ｓｔ５に対応した電磁コイル５８〜５ｅ’に移動磁
界が与えられ、管体１の両端に位置する一対のアマチュ
ア３及び３ａが移動するため、このアマチュア３及び３
ａｌ：対応したノズル５ａ〜５ｅ’の何れかが閉弁状態
となって、冷ノＪ水の供給が停止される。In the above state, based on the meandering sensor signal 10a from the meandering sensor 10, the control signals 7a and 7b from the edge temperature controller 7 are applied to each thyristor 81-S and S.
+1 to S+, each thyristor S
A moving magnetic field is applied to the electromagnetic coils 58 to 5e' corresponding to St1 to St5, and the pair of armatures 3 and 3a located at both ends of the tube body 1 move.
al: Any of the corresponding nozzles 5a to 5e' is closed, and the supply of cold J water is stopped.
従って、蛇行センサー信号１０ａによって作動する各サ
イリスタＳ、〜Ｓｔ、の動作をリアルタイム方式で追随
して行くことにより、管体１の両端すプ８の蛇行に応じ
て効率的な冷却を行い、ストリップ８の先端から終端に
到る幅方向の温度をほぼ一定とし、幅方向の組織の均一
化を達成することができる。Therefore, by following in real time the operation of each thyristor S, ~St, activated by the meandering sensor signal 10a, efficient cooling is performed according to the meandering of the ends 8 of the tube body 1, and the strip By keeping the temperature in the width direction from the tip to the end of the tube 8 substantially constant, it is possible to achieve uniformity of the structure in the width direction.
本発明によるホットストリップの温度制御装置及び温度
制御方法は、以上のように構成されているため、次のよ
うな効果を得ることができる。Since the hot strip temperature control device and temperature control method according to the present invention are configured as described above, the following effects can be obtained.
すなわち、管体内を移動磁界によって自在に移動するア
マチュアによって、管体両端のノ【ルのｒｌ！ＪＩｒ１
を迅速且つ確実に制御することが可能であり、水噴射幅
を自在に制御することができる。In other words, the armatures that move freely within the tube due to the moving magnetic field move the nolls at both ends of the tube. JIr1
can be controlled quickly and reliably, and the water jet width can be freely controlled.
又、蛇行センサからのセンサー信号又はトラッキング信
号を組合せることにより、ストリップの二ツノの任意の
位置にラミナーの位置を制御できるため、ストリップの
先端から終端迄、幅方向の温度を制御し、同時に、幅方
向の組織の均一化を可能とすると共に、エツジ部分を全
て成品とすることができ、歩留まりを大巾に改良するこ
とができ、コストの低減に大きく寄手することができる
。In addition, by combining sensor signals or tracking signals from meandering sensors, the position of the laminar can be controlled at any position between the two corners of the strip, so the temperature in the width direction from the tip to the end of the strip can be controlled, and at the same time , it is possible to make the structure uniform in the width direction, and all the edge portions can be made into finished products, and the yield can be greatly improved, making it possible to significantly reduce costs.
ＰｊＳ１図から第３図迄は本発明によるホットストリッ
プの温度制御装置及び制御方法を示すためのもので、第
１図は全体を示す構成図、ＰＩＳ２図は圧延状態を示す
斜視図、ｆ：ＪＳ３図は第１図の要部を示す断面図であ
る。
１は管体、３，３ａはアマチュア、４はノズル、５ａ〜
５ｅ’は電磁コイル、７はエツジ温度コントローラ、８
はストリップ、１０は蛇行センサ、１０ａは蛇行センサ
ー信号である。
第
図
（１）は管体
（３，３ａ）はアマ子コア
（４）はノズル
（５ａ〜５＝）は電磁コイル
（ア）を末エツジ゛個［コントローラ
２図PjS1 to FIG. 3 are for showing the hot strip temperature control device and control method according to the present invention, FIG. 1 is a configuration diagram showing the whole, PIS2 is a perspective view showing the rolling state, f: JS3 The figure is a sectional view showing the main part of FIG. 1. 1 is a tube body, 3, 3a are amateurs, 4 is a nozzle, 5a~
5e' is an electromagnetic coil, 7 is an edge temperature controller, 8
is a strip, 10 is a meandering sensor, and 10a is a meandering sensor signal. In Fig. (1), the tube body (3, 3a) is the Amako core (4), the nozzle (5a to 5=) is the electromagnetic coil (A), and the end is the edge piece [Controller 2
Claims (3)
１）に設けられた複数のノズル（４）と、前記管体（１
）の外周に設けられた各々独立して励磁可能な複数の電
磁コイル（５ａ〜５ｅ′）と、前記管体（１）内に移動
可能に設けられ磁性材よりなるアマチュア（３、３ａ）
と、前記各電磁コイル（５ａ〜５ｅ′）に通電するため
のエッジ温度コントローラ（７）とを備え、前記各電磁
コイル（５ａ〜５ｅ′）に移動磁界を与えて前記アマチ
ュア（３、３ａ）を移動させることにより、前記各ノズ
ル（４）からの水の吐出を制御するようにしたことを特
徴とする熱間圧延設備におけるホットストリップ温度制
御装置。(1) A tube body (1) configured in a longitudinal shape, and the tube body (
1), a plurality of nozzles (4) provided in the tube body (1);
) and armatures (3, 3a) movably provided in the tube (1) and made of a magnetic material.
and an edge temperature controller (7) for energizing each of the electromagnetic coils (5a to 5e'), and applying a moving magnetic field to each of the electromagnetic coils (5a to 5e') to control the armature (3, 3a). A hot strip temperature control device for a hot rolling facility, characterized in that the discharge of water from each nozzle (4) is controlled by moving the nozzles (4).
記管体（１）の両端位置に配設されていることを特徴と
する請求項１記載のホットストリップ温度制御装置。(2) The hot strip temperature control device according to claim 1, wherein the armatures (3, 3a) are a pair and are arranged at both ends of the tube (1).
及びアマチュア（３、３ａ）を有する管体（１）のノズ
ル（４）から冷却水を走行するストリップ（８）に供給
してストリップ（８）の冷却を行うようにしたホットス
トリップの温度制御方法において、前記ストリップ（８
）の蛇行状態を蛇行センサ（１０）によって検出する第
１工程と、前記蛇行センサ（１０）からの蛇行センサー
信号（１０ａ）に基づいて前記管体（１）内のアマチュ
ア（３、３ａ）の位置を制御する第２工程とよりなり、
前記ストリップ（８）の幅方向への冷却水の供給状態を
変えるようにしたことを特徴とするホットストリップの
温度制御方法。(3) Electromagnetic coils (5a to 5e') configured in a longitudinal shape
A hot strip temperature control method in which cooling water is supplied from a nozzle (4) of a tube body (1) having armatures (3, 3a) to a running strip (8) to cool the strip (8). , the strip (8
) of the armatures (3, 3a) in the pipe body (1) based on the meandering sensor signal (10a) from the meandering sensor (10). The second step is to control the position.
A hot strip temperature control method, characterized in that the supply state of cooling water in the width direction of the strip (8) is changed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63300985A JPH0780004B2 (en) | 1988-11-30 | 1988-11-30 | Hot strip temperature control device and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63300985A JPH0780004B2 (en) | 1988-11-30 | 1988-11-30 | Hot strip temperature control device and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02151312A true JPH02151312A (en) | 1990-06-11 |
| JPH0780004B2 JPH0780004B2 (en) | 1995-08-30 |
Family
ID=17891442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63300985A Expired - Lifetime JPH0780004B2 (en) | 1988-11-30 | 1988-11-30 | Hot strip temperature control device and control method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0780004B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105579A1 (en) * | 2009-03-20 | 2010-09-23 | 宝山钢铁股份有限公司 | Cooling device located in the middle of finish rolling stands |
| CN102189129A (en) * | 2010-03-19 | 2011-09-21 | 宝山钢铁股份有限公司 | Upper spray cooling device arranged among finishing mill racks |
| CN102189132A (en) * | 2010-03-19 | 2011-09-21 | 宝山钢铁股份有限公司 | Upper spray cooling device arranged among finishing mill racks |
| KR20200139514A (en) * | 2019-06-04 | 2020-12-14 | 주식회사 포스코 | Apparatus and method for correcting meandering of strip |
| CN113695405A (en) * | 2021-09-07 | 2021-11-26 | 燕山大学 | Uniform cooling system and method for differential temperature rolling of large-scale shell ring |
-
1988
- 1988-11-30 JP JP63300985A patent/JPH0780004B2/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105579A1 (en) * | 2009-03-20 | 2010-09-23 | 宝山钢铁股份有限公司 | Cooling device located in the middle of finish rolling stands |
| CN102189129A (en) * | 2010-03-19 | 2011-09-21 | 宝山钢铁股份有限公司 | Upper spray cooling device arranged among finishing mill racks |
| CN102189132A (en) * | 2010-03-19 | 2011-09-21 | 宝山钢铁股份有限公司 | Upper spray cooling device arranged among finishing mill racks |
| KR20200139514A (en) * | 2019-06-04 | 2020-12-14 | 주식회사 포스코 | Apparatus and method for correcting meandering of strip |
| CN113695405A (en) * | 2021-09-07 | 2021-11-26 | 燕山大学 | Uniform cooling system and method for differential temperature rolling of large-scale shell ring |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0780004B2 (en) | 1995-08-30 |
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