JPH08283874A - Device for cooling steel strip in continuous annealing line - Google Patents

Device for cooling steel strip in continuous annealing line

Info

Publication number
JPH08283874A
JPH08283874A JP11010195A JP11010195A JPH08283874A JP H08283874 A JPH08283874 A JP H08283874A JP 11010195 A JP11010195 A JP 11010195A JP 11010195 A JP11010195 A JP 11010195A JP H08283874 A JPH08283874 A JP H08283874A
Authority
JP
Japan
Prior art keywords
steel strip
cooling
continuous annealing
roll
deflector roll
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
JP11010195A
Other languages
Japanese (ja)
Other versions
JP3142459B2 (en
Inventor
Hirotoshi Konishi
弘敏 小西
Katsuyoshi Kobayashi
克義 小林
Tsutomu Tamiya
勉 田宮
Narikazu Imanaka
成和 今中
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.)
Nippon Steel Corp
Nippon Steel Plant Designing Corp
Original Assignee
Nittetsu Plant Designing Corp
Nippon Steel Corp
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 Nittetsu Plant Designing Corp, Nippon Steel Corp filed Critical Nittetsu Plant Designing Corp
Priority to JP07110101A priority Critical patent/JP3142459B2/en
Publication of JPH08283874A publication Critical patent/JPH08283874A/en
Application granted granted Critical
Publication of JP3142459B2 publication Critical patent/JP3142459B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

PURPOSE: To provide a cooling device of a steel strip in a continuous annealing line, by which the max. tension developed in the steel strip is reduced and, even in the case of the thin strip, the operation can be executed at a higher speed. CONSTITUTION: In the cooling device 10 of the steel strip 12 in the continuous annealing line which has a cooling vessel for continuously dipping the steel strip 12 successively to a continuous annealing furnace in its inner part, the cooling vessel is divided at least into two, and sink rolls 23, 24 respectively introducing the steel strips to the divided cooling vessels 14, 15 are arranged. Deflector roll 16 for carrying the steel strip 12 is arranged above the cooling liquid in the cooling vessels 14, 15 at the intermediate position of the sink rolls 23, 24.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、高速で鋼帯を通板する
場合に適した連続焼鈍ラインにおける鋼帯の冷却装置に
関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel strip cooling device in a continuous annealing line suitable for passing steel strip at high speed.

【0002】[0002]

【従来の技術】鋼帯を過時効温度から冷却液によって冷
却する装置は、例えば特公昭58−6766号公報記載
の連続焼鈍ラインにおける鋼帯の冷却装置が提案されて
いる。この装置の概要を、図3に示すが、冷却媒体スプ
レー装置50と、これに続く冷却媒体浸漬槽51を有
し、一定温度に制御された冷却媒体を鋼帯52にスプレ
ーし、次に、鋼帯52を冷却媒体中に浸漬することによ
って冷却を行っていた。なお、図3において、53はシ
ンクロールを、54はドライヤーを、55は温度調節器
を、56は補給液量調整装置、57はダブルリンガーロ
ールを、58はスプレーポンプを示す。
2. Description of the Related Art As a device for cooling a steel strip from an overaging temperature with a cooling liquid, for example, a steel strip cooling device in a continuous annealing line disclosed in Japanese Patent Publication No. 58-6766 has been proposed. An outline of this device is shown in FIG. 3, which has a cooling medium spraying device 50 and a cooling medium dipping bath 51 following the cooling medium spraying device 50, and sprays a cooling medium controlled at a constant temperature onto a steel strip 52, and then, Cooling is performed by immersing the steel strip 52 in a cooling medium. In FIG. 3, reference numeral 53 is a sink roll, 54 is a dryer, 55 is a temperature controller, 56 is a replenishment liquid amount adjusting device, 57 is a double ringer roll, and 58 is a spray pump.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、鋼帯5
2に対する冷却媒体の摩擦抵抗は、以下の(1)式に示
すようにライン速度の略2乗に比例して増大するため、
図4に示すように各点a〜dにおける鋼帯張力が、高速
時(実線)においては低速時(破線)に比較して大きく
上昇している。従って、生産効率を向上するために鋼帯
の速度を増大させると、板厚が薄い場合には冷却媒体浸
漬槽51の出側において張力が過大となって、鋼帯の形
状不良(鋼帯の絞り)の原因となることがあった。
However, the steel strip 5
Since the frictional resistance of the cooling medium with respect to 2 increases in proportion to approximately the square of the line speed as shown in the following formula (1),
As shown in FIG. 4, the steel strip tensions at the points a to d greatly increase at high speed (solid line) as compared to at low speed (broken line). Therefore, when the speed of the steel strip is increased in order to improve the production efficiency, the tension becomes excessive on the outlet side of the cooling medium dipping tank 51 when the plate thickness is thin, resulting in a defective shape of the steel strip (of the steel strip). Aperture) in some cases.

【0004】[0004]

【数1】 [Equation 1]

【0005】本発明はかかる事情に鑑みてなされたもの
で、鋼帯に発生する最大張力を軽減し、薄板であっても
より高速で操業を行うことが可能な連続焼鈍ラインにお
ける鋼帯の冷却装置を提供することを目的とする。
The present invention has been made in view of the above circumstances, and is for cooling a steel strip in a continuous annealing line capable of reducing the maximum tension generated in the steel strip and operating at a higher speed even for a thin sheet. The purpose is to provide a device.

【0006】[0006]

【課題を解決するための手段】前記目的に沿う請求項1
記載の連続焼鈍ラインにおける鋼帯の冷却装置は、連続
焼鈍炉に後続し、内部に鋼帯を連続的に浸漬する冷却槽
を有する連続焼鈍ラインにおける鋼帯の冷却装置におい
て、前記冷却槽を少なくとも2分割してそれぞれに前記
鋼帯を分割した冷却槽内に導くシンクロールを設け、該
それぞれのシンクロールの中間位置で該冷却槽の冷却液
上部に前記鋼帯を搬送するデフレクターロールを設けて
いる。請求項2記載の連続焼鈍ラインにおける鋼帯の冷
却装置は、請求項1記載の装置において、前記デフレク
ターロールには通板する前記鋼帯を該デフレクターロー
ルに押圧する押さえロールが設けられている。そして、
請求項3記載の連続焼鈍ラインにおける鋼帯の冷却装置
は、請求項1又は2記載の装置において、前記デフレク
ターロールの手前側にテンションメータロールを設け
て、前記鋼帯の張力を測定し、該測定した張力が前記鋼
帯の速度に対応した一定範囲になるように前記デフレク
ターロールの駆動モータを制御する制御手段を有する。
A method according to the above-mentioned object.
A cooling device for a steel strip in the continuous annealing line according to the description, in a cooling device for a steel strip in a continuous annealing line, which has a cooling tank that continuously immerses the steel strip inside the continuous annealing furnace, at least the cooling tank is provided. A sink roll for dividing the steel strip into two parts is provided for guiding the steel strip into the cooling bath, and a deflector roll for transporting the steel strip is provided above the cooling liquid in the cooling bath at an intermediate position between the sink rolls. There is. A cooling device for a steel strip in a continuous annealing line according to a second aspect is the device according to the first aspect, wherein the deflector roll is provided with a pressing roll that presses the steel strip that is passed through the deflector roll. And
The cooling apparatus for a steel strip in a continuous annealing line according to claim 3 is the apparatus according to claim 1 or 2, wherein a tension meter roll is provided on the front side of the deflector roll to measure the tension of the steel strip, It has a control means which controls the drive motor of the said deflector roll so that the measured tension may become a fixed range corresponding to the speed of the said steel strip.

【0007】[0007]

【作用】請求項1〜3記載の連続焼鈍ラインにおける鋼
帯の冷却装置においては、冷却槽を少なくとも2分割
し、それぞれの鋼帯を分割した冷却槽内に導くシンクロ
ールを設け、該それぞれのシンクロールの中間位置に
は、デフレクターロールを設け、デフレクターロールで
鋼帯の中間部を引っ張るようにしているので、鋼帯にか
かる張力が分散され、結果として小さな張力で鋼帯を引
っ張ることができる。そして、冷却槽は少なくとも2分
割しているので、分割された最初の冷却槽の冷却液の温
度より、次の冷却槽の温度を下げることができ、これに
よって冷却効率を向上させ、結果として鋼帯の延べ浸漬
長さを減少させ、液中摩擦抵抗を減少することができ
る。特に、請求項2記載の連続焼鈍ラインにおける鋼帯
の冷却装置においては、デフレクターロールには、通板
する鋼帯をデフレクターロールに押圧する押さえロール
が設けられているので、通板中に発生する鋼帯の振動や
蛇行を抑制できる。請求項3記載の連続焼鈍ラインにお
ける鋼帯の冷却装置においては、デフレクターロールの
手前側にテンションメータロールを設けて、鋼帯の張力
を測定し、該測定した張力が鋼帯の速度に対応した一定
範囲になるようにデフレクターロールの駆動モータを制
御しているので、鋼帯を無理に引っ張ることなく操業す
ることができる。
In the steel strip cooling device in the continuous annealing line according to any one of claims 1 to 3, a cooling tank is divided into at least two parts, and a sink roll for guiding each of the steel strips into the divided cooling tank is provided. A deflector roll is provided in the middle position of the sink roll, and the middle part of the steel strip is pulled by the deflector roll, so the tension applied to the steel strip is dispersed, and as a result, the steel strip can be pulled with a small tension. . Further, since the cooling tank is divided into at least two, the temperature of the next cooling tank can be lowered from the temperature of the cooling liquid of the first divided cooling tank, which improves the cooling efficiency and consequently the steel. The total immersion length of the strip can be reduced and the frictional resistance in liquid can be reduced. Particularly, in the cooling apparatus for a steel strip in the continuous annealing line according to claim 2, since the deflector roll is provided with a press roll for pressing the steel strip to be passed through the deflector roll, the deflector roll is generated during the strip passing. Vibration and meandering of the steel strip can be suppressed. In the apparatus for cooling a steel strip in a continuous annealing line according to claim 3, a tension meter roll is provided on the front side of the deflector roll to measure the tension of the steel strip, and the measured tension corresponds to the speed of the steel strip. Since the drive motor of the deflector roll is controlled so as to be within a certain range, it is possible to operate the steel strip without forcibly pulling it.

【0008】[0008]

【実施例】続いて、添付した図面を参照しつつ、本発明
を具体化した実施例につき説明し、本発明の理解に供す
る。ここに、図1は本発明の一実施例に係る連続焼鈍ラ
インにおける鋼帯の冷却装置の説明図、図2は同装置の
各点の鋼帯張力を示すグラフである。
Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. FIG. 1 is an explanatory diagram of a steel strip cooling device in a continuous annealing line according to an embodiment of the present invention, and FIG. 2 is a graph showing steel strip tension at each point of the same device.

【0009】図1に示すように、本発明の一実施例に係
る連続焼鈍ラインにおける鋼帯の冷却装置10は、ハー
スロール11を通過した鋼帯12の1次冷却を行うスプ
レー装置13と、スプレー装置13に後続して2次及び
3次の冷却を行う第1冷却槽14及び第2冷却槽15
と、第1冷却槽14及び第2冷却槽15の中間に設けら
れているデフレクターロール16と、前記ハースロール
11の手前側に設けられているテンションメータロール
17と、この出力を入力とし前記デフレクターロール1
6の駆動モータ18を制御する鋼帯張力制御器19とを
有している。以下、これらについて詳しく説明する。
As shown in FIG. 1, a cooling device 10 for a steel strip in a continuous annealing line according to an embodiment of the present invention includes a spray device 13 for primary cooling the steel strip 12 that has passed through a hearth roll 11. A first cooling tank 14 and a second cooling tank 15 that perform secondary and tertiary cooling subsequent to the spray device 13.
And a deflector roll 16 provided between the first cooling tank 14 and the second cooling tank 15, a tension meter roll 17 provided on the front side of the hearth roll 11, and the deflector with this output as an input. Roll 1
6 and a steel strip tension controller 19 for controlling the drive motor 18 of No. 6 of FIG. These will be described in detail below.

【0010】前記スプレー装置13は、従来構造のもの
が使用され、中央を垂直方向に降下する鋼帯12に表裏
に設けられたノズル20から、冷却液の一例である水を
吹き付け所定の冷却を行っている。なお、ノズル20に
供給する水は第1冷却槽14の温水をポンプ21によっ
てポンプアップして供給している。
The spraying device 13 has a conventional structure and is sprayed with water, which is an example of a cooling liquid, from nozzles 20 provided on the front and back sides of a steel strip 12 vertically descending in the center to perform a predetermined cooling. Is going. The water supplied to the nozzle 20 is the hot water of the first cooling tank 14 pumped up by the pump 21 to be supplied.

【0011】前記第1冷却槽14及び第2冷却槽15
は、大型の水槽の中央に仕切り壁22を設けて構成さ
れ、内部にシンクロール23、24をそれぞれ備え、鋼
帯12を第1冷却槽14及び第2冷却槽15内に導いて
いる。第1冷却槽14及び第2冷却槽15には、温度検
知器25、レベル検知器26が設けられて、第1冷却槽
14の温度が所定温度より高すぎる場合には、温度制御
器27の指令によってポンプ28を駆動し、より温度の
低い第2冷却槽15の水を第1冷却槽14に流す。ま
た、レベル検知器26で測定した第2冷却槽15の水位
が所定水位より低い場合には、レベル制御器29を作動
させて自動弁30を開き冷水を第2冷却槽15内に入れ
る。
The first cooling tank 14 and the second cooling tank 15
Is configured by providing a partition wall 22 in the center of a large water tank, and is provided with sink rolls 23 and 24 inside, respectively, and guides the steel strip 12 into the first cooling tank 14 and the second cooling tank 15. A temperature detector 25 and a level detector 26 are provided in the first cooling tank 14 and the second cooling tank 15, and when the temperature of the first cooling tank 14 is higher than a predetermined temperature, the temperature controller 27 The pump 28 is driven according to the command, and the water in the second cooling tank 15 having a lower temperature is caused to flow into the first cooling tank 14. Further, when the water level of the second cooling tank 15 measured by the level detector 26 is lower than the predetermined water level, the level controller 29 is operated to open the automatic valve 30 and put the cold water into the second cooling tank 15.

【0012】従って、第2冷却槽15内の水温は、第1
冷却槽14内の水温より低くなっており、鋼帯12をよ
り効率的に冷却することができる。これによって、鋼帯
12の延べ浸漬長さを従来の装置に比較して短くでき、
この結果液中摩擦抵抗が小さくなり、より高速で鋼帯1
2の搬送を行うことができる。
Therefore, the water temperature in the second cooling tank 15 is
The temperature is lower than the water temperature in the cooling tank 14, and the steel strip 12 can be cooled more efficiently. As a result, the total immersion length of the steel strip 12 can be shortened as compared with the conventional device,
As a result, the friction resistance in the liquid is reduced, and the steel strip 1 can be operated at higher speed.
2 can be carried.

【0013】前記デフレクターロール16は第1冷却槽
14及び第2冷却槽15の上部で、シンクロール23、
24の中間位置に配置されている。このデフレクターロ
ール16の回転は駆動モータ18によって行うが、駆動
モータ18は制御手段の一例である鋼帯張力制御器19
によって制御されている。また、デフレクターロール1
6には押さえロール31が設けられ、エアシリンダ32
を駆動することによって、押さえロール31をデフレク
ターロール16に押し付け通過する鋼帯12を押圧し
て、その蛇行及び振動の発生を防止し、かつ鋼帯12に
付着した冷却液を排除することによりデフレクターロー
ル16と鋼帯12がスリップするのを防止している。
The deflector roll 16 is located above the first cooling tank 14 and the second cooling tank 15 and is a sink roll 23.
It is arranged at an intermediate position of 24. The deflector roll 16 is rotated by a drive motor 18, which is an example of a control means, which is a steel strip tension controller 19.
Is controlled by. Also, deflector roll 1
6, a pressing roll 31 is provided, and an air cylinder 32
By driving the pressing roll 31 against the deflector roll 16 to press the passing steel strip 12, the meandering and vibration of the steel strip 12 are prevented, and the cooling liquid attached to the steel strip 12 is eliminated to deflect the deflector. The roll 16 and the steel strip 12 are prevented from slipping.

【0014】前記鋼帯張力制御器19によって駆動モー
タ18の制御を行っているが、その制御は、テンション
メータロール17に取付けられたロードセル33によっ
て、鋼帯12の張力を測定し、この測定した張力が、搬
送速度に応じて予め決められた基準張力範囲に入るよう
に、駆動モータ18を制御している。なお、前記テンシ
ョンメータロール17とロードセル33は、デフレクタ
ーロール16の直近位置(即ち、シンクロール23とデ
フレクターロール16との中間位置でしかも水面上部)
に設けることも可能であり、これによって鋼帯12にか
かるより正確な張力を測定して、制御することができ
る。また、図1において、34はリンガーロールを示
す。
The drive motor 18 is controlled by the steel strip tension controller 19, and the control is performed by measuring the tension of the steel strip 12 by the load cell 33 attached to the tension meter roll 17. The drive motor 18 is controlled so that the tension falls within a predetermined reference tension range according to the transport speed. The tension meter roll 17 and the load cell 33 are located at a position closest to the deflector roll 16 (that is, at an intermediate position between the sink roll 23 and the deflector roll 16 and above the water surface).
It is also possible to provide the tension on the steel strip 12 with more accurate measurement and control. Moreover, in FIG. 1, 34 shows a ringer roll.

【0015】続いて、この連続焼鈍ラインにおける鋼帯
の冷却装置10の動作について説明すると、焼鈍炉から
搬出され、テンションメータロール17、ハースロール
11を通過した200〜300℃の鋼帯12は、スプレ
ー装置13によって冷却され、更に第1冷却槽14及び
第2冷却槽15に浸漬されて冷却される。ここで、シン
クロール23の後部にはモータ駆動されるデフレクター
ロール(ブライドルロールともいう)16が設けられて
いるので、これによって引っ張られることになる。この
デフレクターロール16には押さえロール31が設けら
れているので、鋼帯12は押さえロール31に押圧され
て、鋼帯12の振動及び蛇行を防止している。
Next, the operation of the steel strip cooling device 10 in this continuous annealing line will be described. The steel strip 12 of 200 to 300 ° C. that has been carried out of the annealing furnace and passed through the tension meter roll 17 and the hearth roll 11 is It is cooled by the spray device 13, and further immersed in the first cooling tank 14 and the second cooling tank 15 to be cooled. Here, since a deflector roll (also referred to as a bridle roll) 16 driven by a motor is provided at the rear of the sink roll 23, the deflector roll 16 is pulled by this. Since the deflector roll 16 is provided with the pressing roll 31, the steel strip 12 is pressed by the pressing roll 31 to prevent the steel strip 12 from vibrating and meandering.

【0016】図2は、図1に示す連続焼鈍ラインにおけ
る鋼帯の冷却装置10のa〜f位置における鋼帯12の
張力を示すが、高速の場合(実線)には第1冷却槽14
に漬かるbc間では、急速に大きくなるが、デフレクタ
ーロール16を通過した時点から小さくなっている。こ
れによって、鋼帯12を高速で送る場合であっても、デ
フレクターロール16以降の鋼帯12の張力を小さくで
きることが分かる。更には、冷却槽を第1冷却槽14と
第2冷却槽15とに分割しているので、第2冷却槽15
の温度を第1冷却槽14の温度より更に低い温度に設定
することができ、これによって鋼帯12の冷却が効果的
に行え、鋼帯の延べ浸漬長さを小さくできる。
FIG. 2 shows the tension of the steel strip 12 at the positions a to f of the steel strip cooling device 10 in the continuous annealing line shown in FIG. 1. In the case of high speed (solid line), the first cooling tank 14 is shown.
Between bc soaked in bc, it becomes large rapidly, but becomes small after passing the deflector roll 16. As a result, it is understood that the tension of the steel strip 12 after the deflector roll 16 can be reduced even when the steel strip 12 is fed at high speed. Further, since the cooling tank is divided into the first cooling tank 14 and the second cooling tank 15, the second cooling tank 15
Can be set to a temperature lower than the temperature of the first cooling tank 14, so that the steel strip 12 can be effectively cooled, and the total immersion length of the steel strip can be reduced.

【0017】[0017]

【発明の効果】請求項1〜3記載の連続焼鈍ラインにお
ける鋼帯の冷却装置は、以上の説明からも明らかなよう
に、冷却槽を少なくとも2分割し、それぞれのシンクロ
ールの中間位置には、デフレクターロールを設けたの
で、鋼帯にかかる張力が分散される。従って、鋼帯が薄
い場合であっても高速度で鋼帯を搬送でき、生産効率を
高めることができる。また、後続する冷却槽の冷却液の
温度を下げることによって、冷却効率が向上し、鋼帯の
延べ浸漬長さを減少させ、液中摩擦抵抗を減少させるこ
とも可能となる。
As is clear from the above description, the cooling apparatus for steel strips in the continuous annealing line according to claims 1 to 3 divides the cooling tank into at least two, and the intermediate position of each sink roll is located. Since the deflector roll is provided, the tension applied to the steel strip is dispersed. Therefore, even if the steel strip is thin, the steel strip can be transported at a high speed and the production efficiency can be improved. Further, by lowering the temperature of the cooling liquid in the subsequent cooling tank, it is possible to improve the cooling efficiency, reduce the total immersion length of the steel strip, and reduce the frictional resistance in the liquid.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例に係る連続焼鈍ラインにおけ
る鋼帯の冷却装置の説明図である。
FIG. 1 is an explanatory diagram of a steel strip cooling device in a continuous annealing line according to an embodiment of the present invention.

【図2】同装置の各点の鋼帯張力を示すグラフである。FIG. 2 is a graph showing the steel strip tension at each point of the device.

【図3】従来例に係る連続焼鈍ラインにおける鋼帯の冷
却装置の説明図である。
FIG. 3 is an explanatory diagram of a steel strip cooling device in a continuous annealing line according to a conventional example.

【図4】従来例に係る装置の各点の鋼帯張力を示すグラ
フである。
FIG. 4 is a graph showing steel strip tension at each point of the device according to the conventional example.

【符号の説明】[Explanation of symbols]

10 連続焼鈍ラインにおける鋼帯の冷却装置 11 ハースロール 12 鋼帯 13 スプレー装置 14 第1冷却槽 15 第2冷却槽 16 デフレクターロール 17 テンションメータロール 18 駆動モータ 19 鋼帯張力制御器 20 ノズル 21 ポンプ 22 仕切り壁 23 シンクロール 24 シンクロール 25 温度検知器 26 レベル検知器 27 温度制御器 28 ポンプ 29 レベル制御器 30 自動弁 31 押さえロール 32 エアシリンダ 33 ロードセル 34 リンガーロール 10 Cooling Device for Steel Strip in Continuous Annealing Line 11 Hearth Roll 12 Steel Strip 13 Sprayer 14 First Cooling Tank 15 Second Cooling Tank 16 Deflector Roll 17 Tension Meter Roll 18 Drive Motor 19 Steel Strip Tension Controller 20 Nozzle 21 Pump 22 Partition wall 23 Sync roll 24 Sync roll 25 Temperature detector 26 Level detector 27 Temperature controller 28 Pump 29 Level controller 30 Automatic valve 31 Holding roll 32 Air cylinder 33 Load cell 34 Ringer roll

───────────────────────────────────────────────────── フロントページの続き (72)発明者 田宮 勉 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 (72)発明者 今中 成和 千葉県富津市新富20−1 新日本製鐵株式 会社技術開発本部内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsutomu Tamiya 20-1 Shintomi, Futtsu-shi, Chiba Shin Nippon Steel Co., Ltd. Technical Development Division (72) Inventor Shigekazu Imanaka 20-1 Shintomi, Futtsu-shi, Chiba New Nippon Steel Co., Ltd.

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 連続焼鈍炉に後続し、内部に鋼帯を連続
的に浸漬する冷却槽を有する連続焼鈍ラインにおける鋼
帯の冷却装置において、 前記冷却槽を少なくとも2分割してそれぞれに前記鋼帯
を分割した冷却槽内に導くシンクロールを設け、該それ
ぞれのシンクロールの中間位置で該冷却槽の冷却液上部
に前記鋼帯を搬送するデフレクターロールを設けたこと
を特徴とする連続焼鈍ラインにおける鋼帯の冷却装置。
1. A cooling apparatus for a steel strip in a continuous annealing line, which has a cooling tank in which a steel strip is continuously immersed therein after a continuous annealing furnace. A continuous annealing line, characterized in that a sink roll for guiding the strip into the cooling tank is provided, and a deflector roll for transporting the steel strip is provided above the cooling liquid in the cooling tank at an intermediate position between the respective sink rolls. For cooling steel strips in Japan.
【請求項2】 前記デフレクターロールには通板する前
記鋼帯を該デフレクターロールに押圧する押さえロール
が設けられている請求項1記載の連続焼鈍ラインにおけ
る鋼帯の冷却装置。
2. The cooling apparatus for a steel strip in a continuous annealing line according to claim 1, wherein the deflector roll is provided with a pressing roll that presses the steel strip passed through the deflector roll against the deflector roll.
【請求項3】 前記デフレクターロールの手前側にテン
ションメータロールを設けて、前記鋼帯の張力を測定
し、該測定した張力が前記鋼帯の速度に対応した一定範
囲になるように前記デフレクターロールの駆動モータを
制御する制御手段を有する請求項1又は2記載の連続焼
鈍ラインにおける鋼帯の冷却装置。
3. A deflector roll is provided on the front side of the deflector roll to measure the tension of the steel strip, and the deflector roll is adjusted so that the measured tension falls within a certain range corresponding to the speed of the steel strip. The steel strip cooling device in a continuous annealing line according to claim 1 or 2, further comprising control means for controlling the drive motor of the above.
JP07110101A 1995-04-10 1995-04-10 Cooling system for steel strip in continuous annealing line Expired - Fee Related JP3142459B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP07110101A JP3142459B2 (en) 1995-04-10 1995-04-10 Cooling system for steel strip in continuous annealing line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP07110101A JP3142459B2 (en) 1995-04-10 1995-04-10 Cooling system for steel strip in continuous annealing line

Publications (2)

Publication Number Publication Date
JPH08283874A true JPH08283874A (en) 1996-10-29
JP3142459B2 JP3142459B2 (en) 2001-03-07

Family

ID=14527069

Family Applications (1)

Application Number Title Priority Date Filing Date
JP07110101A Expired - Fee Related JP3142459B2 (en) 1995-04-10 1995-04-10 Cooling system for steel strip in continuous annealing line

Country Status (1)

Country Link
JP (1) JP3142459B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008019505A (en) * 2006-06-13 2008-01-31 Jfe Steel Kk Method and facility for cooling steel strip
JP2014019902A (en) * 2012-07-18 2014-02-03 Jfe Steel Corp Method for threading thin metallic strip
CN107760832A (en) * 2017-11-14 2018-03-06 惠州市华晟电子线材有限公司 A kind of annealing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008019505A (en) * 2006-06-13 2008-01-31 Jfe Steel Kk Method and facility for cooling steel strip
JP2014019902A (en) * 2012-07-18 2014-02-03 Jfe Steel Corp Method for threading thin metallic strip
CN107760832A (en) * 2017-11-14 2018-03-06 惠州市华晟电子线材有限公司 A kind of annealing device

Also Published As

Publication number Publication date
JP3142459B2 (en) 2001-03-07

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