JP3329186B2 - Hot-rolled steel strip rolling method and apparatus - Google Patents
Hot-rolled steel strip rolling method and apparatusInfo
- Publication number
- JP3329186B2 JP3329186B2 JP13390596A JP13390596A JP3329186B2 JP 3329186 B2 JP3329186 B2 JP 3329186B2 JP 13390596 A JP13390596 A JP 13390596A JP 13390596 A JP13390596 A JP 13390596A JP 3329186 B2 JP3329186 B2 JP 3329186B2
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- Japan
- Prior art keywords
- rolling
- hot
- rough
- steel strip
- rolled steel
- 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.)
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- General Induction Heating (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、連続熱間圧延機
において圧延された熱延鋼帯の幅方向の温度分布を均一
となし、幅方向の形状および精度の優れた熱延鋼帯を歩
留り高く製造する、熱延鋼帯の圧延方法および装置に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot-rolled steel strip rolled in a continuous hot-rolling mill, in which the temperature distribution in the width direction is made uniform, and a hot-rolled steel strip having an excellent shape and accuracy in the width direction is produced. The present invention relates to a hot-rolled steel strip rolling method and apparatus which are manufactured at a high cost.
【０００２】[0002]
【従来の技術】一般に、熱延鋼帯は、加熱炉においてス
ラブを所定温度に加熱し、加熱されたスラブを粗圧延機
で所定厚さに圧延して粗バーとなし、次いで、粗バー
を、複数基のスタンドからなる連続仕上圧延機において
仕上圧延して所定厚さの熱延鋼帯とし、この熱延鋼帯
を、ランアウトテーブル上の冷却スタンドにおいて冷却
した後、コイラーで巻取ることにより製造される。2. Description of the Related Art Generally, in a hot-rolled steel strip, a slab is heated to a predetermined temperature in a heating furnace, and the heated slab is rolled to a predetermined thickness by a rough rolling mill to form a coarse bar. By finishing rolling in a continuous finishing rolling mill consisting of a plurality of stands to form a hot-rolled steel strip having a predetermined thickness, the hot-rolled steel strip is cooled in a cooling stand on a run-out table, and then wound up by a coiler. Manufactured.
【０００３】このような熱延鋼帯の製造過程において、
加熱炉におけるスラブの加熱時に生ずる偏熱、粗圧延中
に発生する温度分布の非対称性、および、粗バー両エッ
ジ部の温度低下などの原因によって、粗バーの幅方向の
温度分布が不均一になる。In the process of producing such a hot-rolled steel strip,
Uneven temperature distribution in the width direction of the coarse bar due to uneven heating caused by heating the slab in the heating furnace, asymmetry of the temperature distribution generated during rough rolling, and temperature drop at both edges of the rough bar Become.
【０００４】このような問題を防止する手段として、例
えば「鉄と鋼 Vol.72 (1986) 」の第177 〜178 頁に
は、粗バーの両エッジ部をエッジヒータにより加熱し、
両エッジ部の温度低下を防止することが開示されてい
る。[0004] As means for preventing such a problem, for example, in "Iron and Steel Vol. 72 (1986)", pages 177 to 178, both edges of a rough bar are heated by an edge heater.
It is disclosed that the temperature of both edges is prevented from lowering.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、エッジ
ヒータのみでは、粗バーの幅方向中央部付近を加熱する
ことができないために、粗バーの幅方向温度分布の全体
としての偏りを補正することはできない。However, since the edge heater alone cannot heat the vicinity of the center of the coarse bar in the width direction, it is impossible to correct the deviation of the temperature distribution in the width direction of the coarse bar as a whole. Can not.
【０００６】粗バーの幅方向温度分布に偏りが存在する
と、粗バーの幅方向における変形抵抗の分布にも偏りが
生ずる結果、仕上圧延後の鋼帯形状が劣化する。更に、
粗バーの幅方向における変形抵抗の分布に、ひどい偏り
が存在する場合には、仕上圧延中に鋼帯が蛇行し、仕上
圧延機間に設置されているサイドガイドに衝突して、鋼
帯の後端部が折れ込み、ロールを交換しなければならな
い場合も生ずる。[0006] If the temperature distribution in the width direction of the coarse bar is uneven, the distribution of the deformation resistance in the width direction of the coarse bar is also uneven, so that the shape of the steel strip after finish rolling is deteriorated. Furthermore,
If there is a severe deviation in the distribution of deformation resistance in the width direction of the coarse bar, the steel strip meanders during finish rolling and collides with the side guide installed between the finish rolling mills, and In some cases, the rear end breaks and the roll must be replaced.
【０００７】従って、この発明の目的は、上述した問題
を解決し、仕上圧延機の入側における粗バーの幅方向温
度分布を均一となし、幅方向の形状および精度が優れた
熱延鋼帯を歩留り高く製造することができ、しかも、仕
上圧延中における熱延鋼帯の蛇行現象も少なく、熱延鋼
帯の後端部の折れ込みによるロール組み替え頻度を減少
させることができる、熱延鋼帯の圧延方法および装置を
提供することにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, to make uniform the temperature distribution in the width direction of the coarse bar on the entry side of the finishing mill, and to provide a hot-rolled steel strip excellent in shape and accuracy in the width direction. Hot rolled steel strip can be manufactured with a high yield, and the meandering phenomenon of the hot rolled steel strip during finish rolling is small, and the frequency of roll changeover due to the bending of the rear end of the hot rolled steel strip can be reduced. An object of the present invention is to provide a band rolling method and apparatus.
【０００８】[0008]
【課題を解決するための手段】本発明者等は、上述した
観点から、仕上圧延機の入側における粗バーの幅方向温
度分布を均一となし得る方法を開発すべく鋭意研究を重
ねた。その結果、粗圧延機と仕上圧延機との間に、粗バ
ーの幅方向に移動可能な加熱装置を設け、この加熱装置
によって、粗バーを、その幅方向の温度分布が均一とな
るように加熱すれば、幅方向の形状および精度が優れた
熱延鋼帯を歩留り高く製造し得ることを知見した。SUMMARY OF THE INVENTION The present inventors have made intensive studies from the above viewpoints in order to develop a method capable of making the temperature distribution in the width direction of the coarse bar uniform on the entrance side of the finishing mill. As a result, a heating device movable in the width direction of the coarse bar is provided between the rough rolling machine and the finishing rolling machine, and the heating device allows the coarse bar to have a uniform temperature distribution in the width direction. It has been found that by heating, a hot-rolled steel strip having an excellent shape and accuracy in the width direction can be manufactured with high yield.
【０００９】この発明は、上記知見に基づいてなされた
ものであって、請求項１に記載の発明の方法は、スラブ
を粗圧延機によって粗圧延し、次いで、粗圧延された粗
バーを連続熱間仕上圧延機によって仕上げ圧延して所定
厚さの熱延鋼帯を製造する熱延鋼帯の圧延方法におい
て、粗圧延機と仕上圧延機との間に、粗バーの幅方向に
移動可能な加熱装置を設け、粗バーの幅方向の温度分布
が粗バーの中心線に関して対称となるように前記加熱装
置を移動させ、粗バーを加熱することに特徴を有するも
のである。[0009] The present invention has been made based on the above findings, and the method according to the first aspect of the present invention is to roughly roll a slab by a rough rolling machine, and then to continuously roll the roughly rolled rough bar. In the method of rolling a hot-rolled steel strip, which finish-rolls by a hot-finishing rolling mill to produce a hot-rolled steel strip having a predetermined thickness, between the rough rolling mill and the finish rolling mill, it can be moved in the width direction of the coarse bar. A heating device is provided, and the heating device is moved so that the temperature distribution in the width direction of the rough bar is symmetrical with respect to the center line of the rough bar, thereby heating the rough bar.
【００１０】請求項２に記載の発明の方法は、請求項１
に記載の方法において、加熱装置の入側および出側の各
々に、粗バーの幅方向の温度分布を測定するための温度
計を設け、温度計によって測定された粗バーの幅方向温
度分布をフィードバックまたはフィードフォワードし
て、加熱装置の出側における粗バーの幅方向温度分布
が、粗バーの中心線に関して対称になるように加熱装置
の位置を制御することに特徴を有するものである。The method according to the second aspect of the present invention is the method according to the first aspect.
In the method described in the above, a thermometer for measuring the temperature distribution in the width direction of the coarse bar is provided on each of the entrance side and the exit side of the heating device, and the temperature distribution in the width direction of the coarse bar measured by the thermometer is measured. It is characterized in that the position of the heating device is controlled by feedback or feedforward such that the temperature distribution in the width direction of the coarse bar at the outlet side of the heating device is symmetrical with respect to the center line of the coarse bar.
【００１１】 請求項３記載の発明は、スラブを粗バー
に粗圧延する粗圧延手段と、前記粗バーをその幅方向全
体に亘って加熱する誘導加熱手段と、誘導加熱された前
記粗バーを熱延鋼帯に仕上げ圧延する仕上げ圧延手段と
を有する熱延鋼帯の圧延装置であって、前記誘導加熱手
段は、前記粗バーの幅方向に移動可能であることに特徴
を有するものである。 According to a third aspect of the present invention, the slab is provided with a coarse bar.
A rough rolling means for rough rolling to the entire width direction of the rough bar;
Induction heating means for heating over the body and before induction heating
Finish rolling means for finish rolling the coarse bar into a hot-rolled steel strip;
A rolling device for a hot-rolled steel strip having
The step is movable in the width direction of the coarse bar.
It has.
【００１２】 請求項４記載の発明は、前記誘導加熱手
段は、誘導加熱後の前記粗バーの幅方向の温度分布が前
記粗バーの中心線に関して対称になるように移動可能で
あることに特徴を有し、そして、請求項５記載の発明
は、前記誘導加熱手段の圧延ラインの下流側に誘導加熱
された粗バーの幅方向端部を加熱するエッジヒーターが
配置されていることに特徴を有するものである。 According to a fourth aspect of the present invention, the induction heating device
In the step, the temperature distribution in the width direction of the coarse bar after the induction heating is
It can be moved symmetrically about the center line of the coarse bar.
The invention according to claim 5, characterized in that it is present.
Is induction heating downstream of the rolling line of the induction heating means.
Edge heater to heat the widthwise end of the rough bar
It is characterized by being arranged.
【００１３】[0013]
【発明の実施の形態】図１は、この発明の一実施態様を
示す概略側面図であり、図２は、その概略平面図であ
る。図面に示すように、粗圧延機１と複数スタンドから
なる連続熱間仕上圧延機８との間には、誘導加熱装置６
およびエッジヒータ７が設けられており、誘導加熱装置
６の入側にはサイドガイド３ａおよび温度計４ａが、そ
して、誘導加熱装置６の出側にはサイドガイド３ｂおよ
び温度計４ｂがそれぞれ設けられている。FIG. 1 is a schematic side view showing an embodiment of the present invention, and FIG. 2 is a schematic plan view thereof. As shown in the drawing, an induction heating device 6 is provided between a rough rolling mill 1 and a continuous hot finishing mill 8 comprising a plurality of stands.
And an edge heater 7, a side guide 3a and a thermometer 4a are provided on the inlet side of the induction heating device 6, and a side guide 3b and a thermometer 4b are provided on the outlet side of the induction heating device 6, respectively. ing.
【００１４】サイドガイド３ａ，３ｂは、テーブルロー
ル９によって移動する粗バー２の幅方向の移動を拘束
し、温度計４ａ，４ｂは、粗バー２の表面の幅方向の温
度分布を測定する。誘導加熱装置６は、図２に矢印で示
すように、粗バー２の移動方向と直交する水平面上を移
動可能になっている。The side guides 3a and 3b restrict the movement of the rough bar 2 moved in the width direction by the table roll 9, and the thermometers 4a and 4b measure the temperature distribution of the surface of the rough bar 2 in the width direction. The induction heating device 6 is movable on a horizontal plane orthogonal to the moving direction of the coarse bar 2 as indicated by an arrow in FIG.
【００１５】粗圧延機１で圧延された粗バー２は、サイ
ドガイド３ａ，３ｂによって幅方向の移動を拘束されな
がら、テーブルロール９によって移動し、誘導加熱装置
６によって連続的に加熱される。その際、誘導加熱装置
６の入側および出側に設けられた温度計４ａおよび４ｂ
によって、粗バー２の表面の幅方向の温度分布が測定さ
れる。The rough bar 2 rolled by the rough rolling mill 1 is moved by the table roll 9 while being restrained from moving in the width direction by the side guides 3a and 3b, and is continuously heated by the induction heating device 6. At this time, thermometers 4a and 4b provided on the entrance side and the exit side of the induction heating device 6 are used.
Thereby, the temperature distribution in the width direction of the surface of the rough bar 2 is measured.
【００１６】温度計４ａ，４ｂによって測定された、粗
バー２の表面の幅方向温度分布に偏りが存在する場合に
は、誘導加熱装置６の中心軸と粗バー２の中心軸とが、
オフセンターΔｘを有するように、駆動機構１０によっ
て誘導加熱装置６を移動させ、粗バー２の低温側により
多くの熱量を投入する。その結果、誘導加熱を行う前に
存在していた粗バー２の幅方向における温度分布の偏り
は解消される。When there is a bias in the temperature distribution in the width direction of the surface of the rough bar 2 measured by the thermometers 4a and 4b, the center axis of the induction heating device 6 and the center axis of the rough bar 2 are
The induction heating device 6 is moved by the drive mechanism 10 so as to have the off center Δx, and more heat is supplied to the low temperature side of the rough bar 2. As a result, the unevenness of the temperature distribution in the width direction of the rough bar 2 existing before the induction heating is eliminated.
【００１７】このように、温度計４ａ，４ｂによって測
定された、粗バー２の表面の幅方向における温度分布
を、誘導加熱装置６の位置制御演算機１０を介してフィ
ードバックまたはフィードフォワードすることにより、
粗バー２の表面の幅方向温度分布の偏りが、できるだけ
小さくなるように制御される。As described above, the temperature distribution in the width direction of the surface of the rough bar 2 measured by the thermometers 4a and 4b is fed back or fed forward through the position control computer 10 of the induction heating device 6. ,
The deviation of the temperature distribution in the width direction on the surface of the rough bar 2 is controlled to be as small as possible.
【００１８】オフセンターΔｘの大きさは、粗バー２が
誘導加熱装置６と衝突しないようにサイドガイド３ａ，
３ｂの位置に基づいて定められた最大値を超えないもの
とする。The size of the off center Δx is set so that the coarse bar 2 does not collide with the induction heating device 6,
It shall not exceed the maximum value determined based on the position of 3b.
【００１９】粗バー２の両エッジ部の温度低下について
は、仕上圧延機８の入側に設けられたエッジヒータ７に
よって補償され、粗バー２に、その幅方向に均一な温度
分布が付与される。The temperature decrease at both edges of the rough bar 2 is compensated by an edge heater 7 provided on the entrance side of the finishing mill 8, so that the rough bar 2 is given a uniform temperature distribution in the width direction. You.
【００２０】このようにして、粗バー２は、仕上圧延機
８により所定の板厚まで圧延されて熱延鋼帯となるが、
その間における粗バー２の幅方向の温度分布に起因する
幅方向形状不良や、仕上圧延中の熱延鋼帯の蛇行現象は
的確に防止される。In this way, the rough bar 2 is rolled to a predetermined thickness by the finishing mill 8 to form a hot-rolled steel strip.
In the meantime, widthwise shape defects due to the temperature distribution in the width direction of the rough bar 2 and meandering of the hot-rolled steel strip during finish rolling are properly prevented.
【００２１】[0021]
【実施例】次に、この発明を、実施例により更に詳細に
説明する。加熱炉において１２３０℃の温度に加熱され
た、厚さ２２６mm、幅１０５０mm、長さ９２００mmの寸
法の炭素鋼からなるスラブを、図１に示す粗圧延機１に
おいて粗圧延し、厚さ３０mm、幅１０５０mmの粗バー２
とした。次いで、この粗バー２を、誘導加熱装置６およ
びエッジヒータ７によって、粗バー２が所定の温度分布
を有するように加熱した後、連続熱間仕上圧延機８によ
って仕上圧延し、板厚２．０mm、幅１０５０mmの熱延鋼
帯を調製した。Next, the present invention will be described in more detail with reference to examples. A slab made of carbon steel having dimensions of 226 mm in thickness, 1050 mm in width, and 9200 mm in length, which was heated to a temperature of 1230 ° C. in a heating furnace, was roughly rolled in a rough rolling mill 1 shown in FIG. 1050mm coarse bar 2
And Next, the rough bar 2 is heated by the induction heating device 6 and the edge heater 7 so that the rough bar 2 has a predetermined temperature distribution, and then finish-rolled by the continuous hot finish rolling mill 8 to obtain a sheet thickness of 2. A hot-rolled steel strip having a thickness of 0 mm and a width of 1050 mm was prepared.
【００２２】誘導加熱装置６の出側に設けられた温度計
４ｂによって測定された温度分布から求めた、粗バー２
の進行方向に向かって右半分の平均温度とその左半分の
平均温度との差（ΔＴ）を図３に示す。図３から明らか
なように、誘導加熱装置６の位置を制御する前後におい
て、ΔＴに約３０℃の差があり、本発明の方法によれ
ば、粗バーの幅方向の温度分布の偏りは除去されて、幅
方向に形状精度のよい熱延鋼帯が得られた。The coarse bar 2 obtained from the temperature distribution measured by the thermometer 4b provided on the outlet side of the induction heating device 6
FIG. 3 shows the difference (ΔT) between the average temperature of the right half and the average temperature of the left half in the direction of travel. As is clear from FIG. 3, there is a difference of about 30 ° C. in ΔT before and after controlling the position of the induction heating device 6, and according to the method of the present invention, the deviation of the temperature distribution in the width direction of the coarse bar is eliminated. As a result, a hot-rolled steel strip having good shape accuracy in the width direction was obtained.
【００２３】[0023]
【発明の効果】以上述べたように、この発明によれば、
粗バーの幅方向の温度分布の偏りが除去され、仕上圧延
機の入側における粗バーの幅方向温度分布が均一となっ
て、幅方向の形状および精度が優れた熱延鋼帯を、歩留
り高く製造することができ、しかも、仕上圧延中に熱延
鋼帯が蛇行する現象も少なくなり、熱延鋼帯の後端部の
折れ込みによるロール組み替え頻度が減少する等、多く
の工業上有用な効果がもたらされる。As described above, according to the present invention,
The unevenness of the temperature distribution in the width direction of the rough bar is removed, and the temperature distribution in the width direction of the rough bar on the entry side of the finishing mill becomes uniform, and the hot rolled steel strip with excellent shape and accuracy in the width direction is produced. It can be manufactured at a high level, and the phenomenon of meandering of the hot-rolled steel strip during finish rolling is reduced, and the frequency of roll change due to the bending of the rear end of the hot-rolled steel strip is reduced. Effects are provided.
【図１】この発明の装置を示す概略側面図である。FIG. 1 is a schematic side view showing an apparatus of the present invention.
【図２】図１の概略平面図である。FIG. 2 is a schematic plan view of FIG.
【図３】誘導加熱装置の出側における、粗バーの進行方
向に向かって右半分の粗バー平均温度と左半分の粗バー
平均温度との差（ΔＴ）の変化を示す図である。FIG. 3 is a diagram showing a change (ΔT) between the average temperature of the coarse bar in the right half and the average temperature of the coarse bar in the left half in the exit side of the induction heating device in the traveling direction of the coarse bar.
１ 粗圧延機 ２ 粗バー ３ａ，３ｂ サイドガイド ４ａ，４ｂ 放射温度計 ５ 位置制御演算機 ６ 誘導加熱装置 ７ エッジヒータ ８ 仕上圧延機 ９ テーブルロール 10 駆動装置 DESCRIPTION OF SYMBOLS 1 Rough rolling mill 2 Rough bar 3a, 3b Side guide 4a, 4b Radiation thermometer 5 Position control calculator 6 Induction heating device 7 Edge heater 8 Finish rolling mill 9 Table roll 10 Drive device
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｈ０５Ｂ 6/10 ３８１ Ｂ２１Ｂ 37/00 １３２Ａ (72)発明者 江田 尚智 東京都千代田区丸の内一丁目１番２号 日本鋼管株式会社内 (72)発明者 寺内 琢雅 東京都千代田区丸の内一丁目１番２号 日本鋼管株式会社内 審査官 富永 泰規 (56)参考文献 特開 昭63−126608（ＪＰ，Ａ) 特開 昭61−235020（ＪＰ，Ａ) 特開 昭60−244418（ＪＰ，Ａ) 特開 平１−321010（ＪＰ，Ａ) 実開 平４−36484（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21B 45/00 ────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 7 Identification code FI H05B 6/10 381 B21B 37/00 132A (72) Inventor Naoshichi Eda 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nippon Kokan stock In-house (72) Inventor Takuma Terauchi 1-1-2 Marunouchi, Chiyoda-ku, Tokyo Examiner, Nippon Kokan Co., Ltd. Yasunori Tominaga (56) References JP-A-63-126608 (JP, A) JP-A-61 JP-A-235020 (JP, A) JP-A-60-244418 (JP, A) JP-A-1-321010 (JP, A) JP-A-4-36484 (JP, U) (58) Fields investigated (Int. . 7, DB name) B21B 45/00
Claims (5)
いで、粗圧延された粗バーを連続熱間仕上圧延機によっ
て仕上げ圧延して所定厚さの熱延鋼帯を製造する熱延鋼
帯の圧延方法において、 前記粗圧延機と前記仕上圧延機との間に、前記粗バーの
幅方向に移動可能な加熱装置を設け、前記粗バーの幅方
向の温度分布が前記粗バーの中心線に関して対称となる
ように前記加熱装置を移動させ、前記粗バーを加熱する
ことを特徴とする、熱延鋼帯の圧延方法。1. A hot-rolled steel strip for producing a hot-rolled steel strip having a predetermined thickness by subjecting a slab to rough-rolling by a rough-rolling machine and then finish-rolling the rough-rolled rough bar by a continuous hot-finishing rolling mill. In the rolling method, a heating device movable in the width direction of the coarse bar is provided between the rough rolling mill and the finish rolling mill, and the temperature distribution in the width direction of the coarse bar is a center line of the coarse bar. A method of rolling a hot-rolled steel strip, wherein the heating device is moved so as to be symmetrical with respect to, and the coarse bar is heated.
に、前記粗バーの幅方向の温度分布を測定するための温
度計を設け、前記温度計によって測定された前記粗バー
の幅方向温度分布をフィードバックまたはフィードフォ
ワードして、前記加熱装置の出側における前記粗バーの
幅方向温度分布が、前記粗バーの中心線に関して対称に
なるように前記加熱装置の位置を制御する、請求項１に
記載の方法。2. A thermometer for measuring a temperature distribution in a width direction of the coarse bar is provided on each of an inlet side and an outlet side of the heating device, and a width direction of the coarse bar measured by the thermometer is provided. The temperature distribution is fed back or fed forward to control the position of the heating device so that the widthwise temperature distribution of the coarse bar at the outlet side of the heating device is symmetric with respect to the center line of the coarse bar. 2. The method according to 1.
と、前記粗バーをその幅方向全体に亘って加熱する誘導
加熱手段と、誘導加熱された前記粗バーを熱延鋼帯に仕
上げ圧延する仕上げ圧延手段とを有する熱延鋼帯の圧延
装置であって、 前記誘導加熱手段は、前記粗バーの幅方向に移動可能で
あることを特徴とする、熱延鋼帯の圧延装置。 3. A rough rolling means for rough rolling a slab into a rough bar.
And induction for heating the coarse bar over its entire width.
A heating means and the induction-heated rough bar is turned into a hot-rolled steel strip.
Of hot-rolled steel strip with finishing rolling means for up-rolling
An apparatus, wherein the induction heating means is movable in a width direction of the coarse bar.
A hot-rolled steel strip rolling apparatus, comprising:
粗バーの幅方向の温度分布が前記粗バーの中心線に関し
て対称になるように移動可能であることを特徴とする、
請求項３記載の、熱延鋼帯の圧延装置。 4. The induction heating means, wherein after the induction heating,
The temperature distribution in the width direction of the coarse bar is relative to the center line of the coarse bar.
Characterized by being movable to be symmetrical.
The hot-rolled steel strip rolling apparatus according to claim 3.
に誘導加熱された粗バーの幅方向端部を加熱するエッジ
ヒーターが配置されていることを特徴とする、請求項３
または４記載の、熱延鋼帯の圧延装置。 5. A downstream side of a rolling line of the induction heating means.
Edge that heats the widthwise end of the coarse bar that has been induction heated
4. A heater according to claim 3, wherein a heater is arranged.
Or the rolling device for hot-rolled steel strip according to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13390596A JP3329186B2 (en) | 1996-05-28 | 1996-05-28 | Hot-rolled steel strip rolling method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13390596A JP3329186B2 (en) | 1996-05-28 | 1996-05-28 | Hot-rolled steel strip rolling method and apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH09314215A JPH09314215A (en) | 1997-12-09 |
| JP3329186B2 true JP3329186B2 (en) | 2002-09-30 |
Family
ID=15115849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13390596A Expired - Fee Related JP3329186B2 (en) | 1996-05-28 | 1996-05-28 | Hot-rolled steel strip rolling method and apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3329186B2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4442019B2 (en) * | 2000-11-06 | 2010-03-31 | 東洋製罐株式会社 | Method and apparatus for heating metal substrate |
| JP2006294396A (en) * | 2005-04-11 | 2006-10-26 | Shimada Phys & Chem Ind Co Ltd | Induction heating device |
| JP5124856B2 (en) * | 2008-10-31 | 2013-01-23 | 新日鐵住金株式会社 | Hot rolled steel sheet manufacturing apparatus and hot rolled steel sheet manufacturing method |
| KR101225769B1 (en) * | 2010-10-27 | 2013-01-23 | 현대제철 주식회사 | Side guide apparatus |
| CN103121035B (en) * | 2012-11-17 | 2015-03-11 | 武钢集团昆明钢铁股份有限公司 | Method of rolling large-diameter non-sized reinforcing steel bars into small-diameter sized reinforcing steel bars |
| KR101510570B1 (en) * | 2013-12-25 | 2015-04-08 | 주식회사 포스코 | Heating apparatus and method for hot rolling line |
| KR101594717B1 (en) * | 2014-12-24 | 2016-02-17 | 주식회사 포스코 | Rolling method, continuous casting and rolling method and apparatus |
| JP6107989B2 (en) * | 2016-02-29 | 2017-04-05 | Ｊｆｅスチール株式会社 | Thermoelectric generator |
| WO2018055718A1 (en) * | 2016-09-23 | 2018-03-29 | 東芝三菱電機産業システム株式会社 | Edge heater control device |
-
1996
- 1996-05-28 JP JP13390596A patent/JP3329186B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH09314215A (en) | 1997-12-09 |
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