JP3300759B2 - Induction heating device for roll crown heat crown shape control - Google Patents
Induction heating device for roll crown heat crown shape controlInfo
- Publication number
- JP3300759B2 JP3300759B2 JP02891899A JP2891899A JP3300759B2 JP 3300759 B2 JP3300759 B2 JP 3300759B2 JP 02891899 A JP02891899 A JP 02891899A JP 2891899 A JP2891899 A JP 2891899A JP 3300759 B2 JP3300759 B2 JP 3300759B2
- Authority
- JP
- Japan
- Prior art keywords
- roll
- induction heating
- rolling roll
- coil
- supply unit
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
- B21B27/106—Heating the rolls
-
- 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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/30—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control
- B21B37/32—Control of flatness or profile during rolling of strip, sheets or plates using roll camber control by cooling, heating or lubricating the rolls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Induction Heating (AREA)
- Control Of Metal Rolling (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は板材圧延に使用する
圧延ロールのヒートクラウン形状制御用誘導加熱装置に
係わり、特に、形状の小型化、および漏洩磁束の低減を
可能としたヒートクラウン形状制御用誘導加熱装置に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction heating apparatus for controlling the shape of a heat crown of a rolling roll used for rolling a sheet material, and more particularly, to the control of the shape of a heat crown which enables downsizing of the shape and reduction of leakage magnetic flux. It relates to an induction heating device.
【０００２】[0002]
【従来の技術】図１は板材圧延用圧延機の概略図であっ
て、対向配置されたワークロール１１および１２の上下
にバックアップロール１３および１４が配置される。板
材１５はワークロール１１および１２の間に進入し、圧
延されて矢印Ｘの方向に引き出される。2. Description of the Related Art FIG. 1 is a schematic diagram of a rolling mill for plate rolling, in which backup rolls 13 and 14 are arranged above and below work rolls 11 and 12 which are arranged opposite to each other. The plate material 15 enters between the work rolls 11 and 12, is rolled, and is drawn out in the direction of arrow X.
【０００３】このような構成の圧延機において、圧延
時、板材１５の有する熱のためにワークロール１１およ
び１２が熱膨張し、ロール径のロール軸方向分布がロー
ル軸中央で最大となる、いわゆるヒートクラウンが発生
する。ヒートクラウンが発生した状態で圧延を継続する
と、板厚は均一とならず、板材の品質が悪化することは
回避できない。In a rolling mill having such a configuration, at the time of rolling, the work rolls 11 and 12 thermally expand due to the heat of the sheet material 15, and the distribution of roll diameters in the roll axis direction becomes maximum at the center of the roll axis. Heat crown occurs. If rolling is continued in a state in which the heat crown is generated, the thickness of the sheet is not uniform, and the quality of the sheet cannot be prevented from deteriorating.
【０００４】そこでヒートクラウンを解消するために、
ワークロール１１および１２の所定部分を加熱する誘導
加熱装置１６をワークロール１１および１２に対向して
設置する。即ち、ワークロール１１および１２の出口側
にワークロール１１および１２の軸方向に設置されたス
ライドレール１７上にスライド可能に４つの誘導加熱装
置１６が配置される。なお、誘導加熱装置１６は電力制
御装置１８から電力の供給を受ける。In order to eliminate the heat crown,
An induction heating device 16 that heats predetermined portions of the work rolls 11 and 12 is installed to face the work rolls 11 and 12. That is, the four induction heating devices 16 are slidably mounted on the slide rails 17 provided in the axial direction of the work rolls 11 and 12 at the outlet side of the work rolls 11 and 12. In addition, the induction heating device 16 receives supply of electric power from the electric power control device 18.
【０００５】この誘導加熱装置１６は以下の順序で操作
される。 １．圧延前後の板材の形状、板材の搬送速度およびワー
クロールの表面温度を読み込む。 ２．圧延後の板幅から圧延前の板幅を減算して、圧延幅
を算出する。 ３．圧延幅に応じて誘導加熱装置１６を圧延前の板材縁
から圧延後の板材縁の範囲に位置させる。 ４．１で読み込んだ情報に基づいて、現時点でのクラウ
ンカーブパターンを予測する。 ５．圧延幅と予測されたクラウンカーブパターンから、
圧延の際に生じる条伸び等を抑制するのに最適な加熱パ
ターンを作成する。 ６．誘導加熱装置１６の位置と最適加熱パターンに基づ
いて初期電力量を決定する。 ７．圧延開始所定時間前から誘導加熱装置１６に初期電
力の供給を開始する。 ８．圧延後の板幅に応じて電力を補正制御する。[0005] The induction heating device 16 is operated in the following order. 1. The shape of the plate before and after rolling, the conveying speed of the plate and the surface temperature of the work roll are read. 2. The rolling width is calculated by subtracting the rolling width before rolling from the rolling width after rolling. 3. According to the rolling width, the induction heating device 16 is positioned in a range from the edge of the sheet before rolling to the edge of the sheet after rolling. Based on the information read in 4.1, the current crown curve pattern is predicted. 5. From the rolling width and the predicted crown curve pattern,
Create a heating pattern that is optimal for suppressing elongation and the like that occur during rolling. 6. The initial power amount is determined based on the position of the induction heating device 16 and the optimum heating pattern. 7. The supply of initial power to the induction heating device 16 is started a predetermined time before the start of rolling. 8. The electric power is corrected and controlled according to the strip width after rolling.
【０００６】図２は１つの誘導加熱装置の斜視図であっ
て、中空の矩形の高周波コイル１６１は電力制御装置１
８に接続され、電力制御装置１８から供給される高周波
電流によって励磁される。高周波コイル１６１の中空部
分には、各々直方体である強磁性体コア１６２（例えば
フェライト製）とコア用水冷板１６３を交互に積層した
積層体が挿入されている。FIG. 2 is a perspective view of one induction heating device, in which a hollow rectangular high-frequency coil 161 is connected to the power control device 1.
8 and is excited by a high-frequency current supplied from the power control device 18. In the hollow portion of the high-frequency coil 161, a laminated body in which a rectangular parallelepiped ferromagnetic core 162 (for example, made of ferrite) and a core water cooling plate 163 are alternately laminated is inserted.
【０００７】コア用水冷板１６３には冷却水管１６４お
よび冷却水ヘッダ１６５を介して冷却水供給装置１６６
から冷却水が供給され、高周波コイル１６１および強磁
性体コア１６２から発生する熱を除去する。図３は誘導
加熱装置のＹ−Ｙ断面図であって、矢印は磁気ベクトル
であってワークロール１１（または１２）表面に高磁束
密度の磁場を発生できるものの、ロールの反対側では磁
束が空間に漏洩する構造であるため、近傍の磁性体が存
在する場合には、この磁性体中を磁束が通過して磁性体
が発熱したり磁束により誤動作が生じる場合がある。The cooling water supply device 166 is connected to the core water cooling plate 163 via a cooling water pipe 164 and a cooling water header 165.
To supply cooling water to remove heat generated from the high-frequency coil 161 and the ferromagnetic core 162. FIG. 3 is a cross-sectional view of the induction heating device taken along the line Y-Y. An arrow indicates a magnetic vector, which can generate a magnetic field having a high magnetic flux density on the surface of the work roll 11 (or 12). When a nearby magnetic body is present, the magnetic flux may pass through the magnetic body, causing the magnetic body to generate heat or malfunction due to the magnetic flux.
【０００８】図４は上記課題を解決した誘導加熱装置で
あって、Ｕ字形の強磁性体コア１６２とコア用水冷板１
６３を交互に高周波コイル１６１の辺上に挿入してい
る。上記構成にあっては、磁気回路はワークロール
（１）または（２）と強磁性体コア１６２で構成される
ため、磁束が空間に漏洩することは防止される。FIG. 4 shows an induction heating apparatus which solves the above-mentioned problem. The induction heating apparatus comprises a U-shaped ferromagnetic core 162 and a water cooling plate 1 for the core.
63 are alternately inserted on the sides of the high-frequency coil 161. In the above configuration, the magnetic circuit is constituted by the work roll (1) or (2) and the ferromagnetic core 162, so that the magnetic flux is prevented from leaking into the space.
【０００９】[0009]
【発明が解決しようとする課題】しかし、間隔を隔てて
設置されるコア用水冷板１６３に個別に冷却水を供給す
る必要があるため、配管が複雑となり誘導加熱装置１６
の形状が大きくなることは避けることができない。従っ
て、誘導加熱装置１６をワークロールに接近させること
が困難であり、加熱が必要な部分を効果的に加熱するこ
とができない。However, since it is necessary to individually supply cooling water to the core water cooling plates 163 installed at intervals, the piping becomes complicated and the induction heating device 16 is not provided.
It is unavoidable that the shape becomes larger. Therefore, it is difficult to bring the induction heating device 16 close to the work roll, and it is not possible to effectively heat a portion requiring heating.
【００１０】本発明は上記課題に鑑みなされたものであ
って、形状を小型化することを可能としたヒートクラウ
ン形状制御用誘導加熱装置を提供することを目的とす
る。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an induction heating device for controlling a heat crown shape capable of reducing the size.
【００１１】[0011]
【課題を解決するための手段】第１の発明に係るヒート
クラウン形状制御用誘導加熱装置は、高周波電力供給部
と、高周波電力供給部から供給される高周波電力によっ
て励磁され圧延ロール表面に垂直な平面内で略矩形に巻
回される高周波コイルと、高周波コイルの圧延ロールに
近接した辺に適当な間隔を隔ててコイルと一体化される
圧延ロールに向かって開口するＵ字型の冷却板と、冷却
板間に嵌め込まれ高周波コイルの圧延ロールに近接した
辺に挿入される圧延ロールに向かって開口するＵ字型の
強磁性体と、高周波電力供給部および高周波コイルに冷
媒を供給する冷媒供給部と、を具備する。According to a first aspect of the present invention, there is provided an induction heating apparatus for controlling a heat crown shape, wherein a high-frequency power supply unit and a high-frequency power supplied from the high-frequency power supply unit are excited perpendicularly to a surface of a rolling roll. A high-frequency coil wound in a substantially rectangular shape in a plane, and a U-shaped cooling plate opening toward a rolling roll integrated with the coil at an appropriate interval on a side close to the rolling roll of the high-frequency coil; A U-shaped ferromagnetic member which is fitted between the cooling plates and opens toward a rolling roll inserted into a side close to the rolling roll of the high-frequency coil, and a refrigerant supply for supplying a refrigerant to the high-frequency power supply unit and the high-frequency coil And a unit.
【００１２】第２の発明に係るヒートクラウン形状制御
用誘導加熱装置は、高周波電力供給部と、高周波電力供
給部から供給される高周波電力によって励磁され圧延ロ
ール表面に平行な平面内で略矩形に巻回される高周波コ
イルと、高周波コイルの圧延ロールの軸と平行な２つの
辺のそれぞれに適当な間隔を隔ててコイルと一体化され
る圧延ロールに向かって開口するＵ字型の冷却板と、冷
却板間に嵌め込まれ高周波コイルの圧延ロールに近接し
た辺に挿入される圧延ロールに向かって開口するＵ字型
の強磁性体と、高周波電力供給部および高周波コイルに
冷媒を供給する冷媒供給部と、を具備する。According to a second aspect of the present invention, there is provided an induction heating apparatus for controlling a heat crown shape, wherein a high-frequency power supply unit and a high-frequency power supplied from the high-frequency power supply unit are formed into a substantially rectangular shape in a plane parallel to the surface of the rolling roll. A high-frequency coil to be wound, and a U-shaped cooling plate opening toward a rolling roll integrated with the coil at an appropriate interval on each of two sides parallel to the axis of the high-frequency coil rolling roll; A U-shaped ferromagnetic member which is fitted between the cooling plates and opens toward a rolling roll inserted into a side close to the rolling roll of the high-frequency coil, and a refrigerant supply for supplying a refrigerant to the high-frequency power supply unit and the high-frequency coil And a unit.
【００１３】本発明にあっては、高周波コイル内を流れ
る冷媒によって高周波コイルおよび強磁性体において発
生する熱が除去され、磁束は圧延ロールおよびＵ字型の
強磁性体内を流れる。In the present invention, the heat generated in the high-frequency coil and the ferromagnetic material is removed by the refrigerant flowing in the high-frequency coil, and the magnetic flux flows through the rolling roll and the U-shaped ferromagnetic material.
【００１４】[0014]
【発明の実施の形態】図５は本発明に係るヒートクラウ
ン形状制御用誘導加熱装置の第１の実施形態の斜視図、
図６はＺ−Ｚ断面図である。高周波コイル５１は、中空
矩形の断面を有する銅管であって、ワークロール１１
（または１２）の表面に対して垂直な平面内で略矩形に
巻回され、電力供給装置５２によって励磁される。FIG. 5 is a perspective view of a first embodiment of an induction heating device for controlling a heat crown shape according to the present invention.
FIG. 6 is a ZZ sectional view. The high-frequency coil 51 is a copper tube having a hollow rectangular cross section,
It is wound in a substantially rectangular shape in a plane perpendicular to the surface of (or 12), and is excited by the power supply device 52.
【００１５】略矩形状の高周波コイル５１のワークロー
ル１１（または１２）側の辺５１０には、略逆Ｕ字型の
冷却板５３が、凹部内を高周波コイル５１が通過するよ
うに、適当な間隔を隔てて、例えばロウ付けにより構造
的および熱的に一体に固定されている。なお高周波コイ
ル５１と冷却板５３は一体に形成されてもよい。冷却板
５３の間には、冷却板５３と同じく略逆Ｕ字型の強磁性
体（例えばフェライト）５４が嵌め込まれている。A substantially inverted U-shaped cooling plate 53 is provided on the side 510 of the substantially rectangular high-frequency coil 51 on the side of the work roll 11 (or 12) so that the high-frequency coil 51 passes through the recess. They are fixed structurally and thermally together at intervals, for example by brazing. Note that the high-frequency coil 51 and the cooling plate 53 may be formed integrally. A substantially inverted U-shaped ferromagnetic material (for example, ferrite) 54 is fitted between the cooling plates 53 similarly to the cooling plate 53.
【００１６】また、高周波コイル５１は、冷媒供給装置
５６から電力供給装置５２を介して供給され、高周波コ
イル５１の中空部である冷媒流路５５を流れる冷媒（例
えば水）によって直接冷却される。図５および図６に
は、実線で磁束流、破線で熱流が示されている。強磁性
体の下面、即ちＵ字型の開口面、でワークロールに接し
ているため、磁束はワークロール内を流れてワークロー
ルを加熱する。他の面では磁束流は強磁性体中を流れ、
外部に漏洩することはない。従って、漏洩磁束による周
辺の機器の発熱、誤動作が防止される。The high-frequency coil 51 is supplied from a refrigerant supply device 56 via a power supply device 52, and is directly cooled by a refrigerant (for example, water) flowing through a refrigerant passage 55 which is a hollow portion of the high-frequency coil 51. 5 and 6, a solid line indicates a magnetic flux flow, and a broken line indicates a heat flow. Since the lower surface of the ferromagnetic material, that is, the U-shaped opening surface, is in contact with the work roll, the magnetic flux flows in the work roll and heats the work roll. In other respects, the magnetic flux flows through the ferromagnetic material,
No leakage to the outside. Therefore, heat generation and malfunction of peripheral devices due to the leakage magnetic flux are prevented.
【００１７】冷却板５３は熱伝達率の大きい材質、例え
ば銅で製作されているため、強磁性体５４内で発生した
熱は、いったん冷却板５３に伝達される。そして、冷却
板５３と高周波コイル５１はロウ付け等によって一体化
されているため、冷却板４３に伝達された熱は、さらに
高周波コイル５１に伝達され、冷媒によって冷媒供給装
置５６に放熱される。Since the cooling plate 53 is made of a material having a high heat transfer coefficient, for example, copper, the heat generated in the ferromagnetic material 54 is transmitted to the cooling plate 53 once. Since the cooling plate 53 and the high-frequency coil 51 are integrated by brazing or the like, the heat transmitted to the cooling plate 43 is further transmitted to the high-frequency coil 51 and radiated to the refrigerant supply device 56 by the refrigerant.
【００１８】なお、高周波コイル５１を銅製、強磁性体
５４をフェライト製とした場合は、フェライトは導電性
であるものの電気抵抗率は銅に比較して２桁程度大であ
るため、高周波コイル４１の周囲に強磁性体４４を配置
しても高周波コイル４１の電流分布にほとんど影響を与
えることはない。図７は本発明に係るヒートクラウン形
状制御用誘導加熱装置の第２の実施形態の斜視図であっ
て、高周波コイル５１はワークロール１１（または１
２）の表面に平行な面内で略矩形に巻回されている。When the high-frequency coil 51 is made of copper and the ferromagnetic material 54 is made of ferrite, the ferrite is conductive, but the electrical resistivity is about two orders of magnitude larger than that of copper. Even if the ferromagnetic material 44 is arranged around the current, the current distribution of the high-frequency coil 41 is hardly affected. FIG. 7 is a perspective view of a second embodiment of an induction heating apparatus for controlling a heat crown shape according to the present invention, in which a high-frequency coil 51 includes a work roll 11 (or 1).
It is wound substantially rectangular in a plane parallel to the surface of 2).
【００１９】そして、ワークロール１１（または１２）
の軸と平行な２辺５１１および５１２にＵ字型の冷却板
５３が一定間隔をあけてロウ付けされている。さらに、
冷却板５３の間にはＵ字型の強磁性体５４が嵌め込まれ
ている。第２の実施形態にあっては、発熱部が倍になる
ためより効率的にワークロール１１（または１２）を加
熱することが可能となる。Then, the work roll 11 (or 12)
U-shaped cooling plates 53 are brazed to the two sides 511 and 512 parallel to the axis at a fixed interval. further,
A U-shaped ferromagnetic material 54 is fitted between the cooling plates 53. In the second embodiment, since the number of heat generating portions is doubled, the work roll 11 (or 12) can be more efficiently heated.
【００２０】図８は試作した誘導加熱装置の図面であっ
て、幅５５ｍｍ×高さ４０ｍｍの矩形のフェライトに幅
１５ｍｍ×深さ２０ｍｍの切り込みが形成されている。
切り込み中には、厚さ１ｍｍの銅板で作成された幅１２
ｍｍ×高さ１８ｍｍの中空矩形の巻線が１回巻回された
高周波コイルが配置されている。なお、冷却板は幅５８
ｍｍ×高さ４０ｍｍの矩形で中空コイルとロウ付けによ
り一体化されている。FIG. 8 is a drawing of a prototype induction heating device, in which a cut of 15 mm wide and 20 mm deep is formed in a rectangular ferrite having a width of 55 mm and a height of 40 mm.
During the cut, a 12 mm wide sheet made of a 1 mm thick copper plate was used.
A high-frequency coil in which a hollow rectangular winding having a size of 18 mm × 18 mm is wound once is arranged. The cooling plate has a width of 58
It is a rectangle of mm × 40 mm in height and integrated with the hollow coil by brazing.
【００２１】この加熱エレメントをワークロールと５ｍ
ｍの空隙を隔てて配置し、２．５×１０7Ｗ／ｍ2の電力
密度、周波数８０ｋＨｚの高周波で励磁したところ、ヒ
ートクラウンを抑制して板材の条伸びを抑制することが
できた。なお、励磁電力の周波数としては５０ｋＨｚ以
上１００ｋＨｚ以下とすることが望ましい。The heating element is connected to a work roll by 5 m
m and a power density of 2.5 × 10 7 W / m 2 and excitation at a high frequency of 80 kHz, the heat crown was suppressed and the strip elongation of the sheet material was suppressed. It is desirable that the frequency of the excitation power be 50 kHz or more and 100 kHz or less.
【００２２】[0022]
【発明の効果】本発明に係るヒートクラウン形状制御用
誘導加熱装置によれば、ワークロール以外の部分では磁
束は強磁性体中を流れるため磁束が外部に漏洩すること
を防止することが可能となるだけでなく、中空の高周波
コイル内に冷媒を流して高周波コイルを直接冷却するこ
とが可能となるため、装置は小型となりワークロールに
近接して設置することができる。According to the induction heating device for controlling the shape of a heat crown according to the present invention, it is possible to prevent the magnetic flux from leaking outside since the magnetic flux flows through the ferromagnetic material in portions other than the work roll. In addition, since it is possible to directly cool the high-frequency coil by flowing a refrigerant into the hollow high-frequency coil, the device can be downsized and installed close to the work roll.
【図１】板材圧延用圧延機の概略図である。FIG. 1 is a schematic view of a rolling mill for rolling a sheet material.
【図２】従来の誘導加熱装置の斜視図である。FIG. 2 is a perspective view of a conventional induction heating device.
【図３】従来の誘導加熱装置のＹ−Ｙ断面図である。FIG. 3 is a YY sectional view of a conventional induction heating device.
【図４】従来の誘導加熱装置の斜視図である。FIG. 4 is a perspective view of a conventional induction heating device.
【図５】本発明に係るヒートクラウン形状制御用誘導加
熱装置の第１の実施形態の斜視図である。FIG. 5 is a perspective view of a first embodiment of a heat crown shape controlling induction heating device according to the present invention.
【図６】第１の実施形態のＺ−Ｚ断面図である。FIG. 6 is a ZZ cross-sectional view of the first embodiment.
【図７】本発明に係るヒートクラウン形状制御用誘導加
熱装置の第２の実施形態の斜視図である。FIG. 7 is a perspective view of a second embodiment of an induction heating device for controlling a heat crown shape according to the present invention.
【図８】試作誘導加熱装置の外形図である。FIG. 8 is an outline drawing of a prototype induction heating device.
５１…高周波コイル ５２…電力供給装置 ５３…冷却板 ５４…強磁性体 ５５…冷媒流路 ５６…冷媒供給装置 Reference Signs List 51 high-frequency coil 52 power supply device 53 cooling plate 54 ferromagnetic material 55 refrigerant channel 56 refrigerant supply device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 横尾 和俊 広島県広島市西区観音新町四丁目６番22 号 三菱重工業株式会社 広島研究所内 (72)発明者 水田 桂司 広島県広島市西区観音新町四丁目６番22 号 三菱重工業株式会社 広島製作所内 (56)参考文献 特開 昭63−171209（ＪＰ，Ａ) 特開2000−42610（ＪＰ，Ａ) 特開 平７−226292（ＪＰ，Ａ) 特開 平10−192917（ＪＰ，Ａ) 特開 平５−192703（ＪＰ，Ａ) 特開 昭59−212107（ＪＰ，Ａ) 特開 平５−50122（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21B 27/10 H05B 6/10 371 H05B 6/14 H05B 6/42 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazutoshi Yokoo 4-2-2 Kannonshinmachi, Nishi-ku, Hiroshima-shi, Hiroshima Inside Mitsubishi Heavy Industries, Ltd. No. 6-22 Mitsubishi Heavy Industries, Ltd. Hiroshima Works (56) References JP-A-63-171209 (JP, A) JP-A-2000-42610 (JP, A) JP-A-7-226292 (JP, A) JP-A-10-192917 (JP, A) JP-A-5-192703 (JP, A) JP-A-59-212107 (JP, A) JP-A-5-50122 (JP, A) (58) Fields investigated (Int) .Cl. 7 , DB name) B21B 27/10 H05B 6/10 371 H05B 6/14 H05B 6/42
Claims (2)
て励磁され、圧延ロール表面に垂直な平面内で略矩形に
巻回される中空の高周波コイルと、 前記高周波コイルの圧延ロールに近接した辺に適当な間
隔を隔ててコイルと一体化される圧延ロールに向かって
開口するＵ字型の冷却板と、 前記冷却板間に嵌め込まれ、前記高周波コイルの圧延ロ
ールに近接した辺に挿入される圧延ロールに向かって開
口するＵ字型の強磁性体と、 前記高周波電力供給部および前記高周波コイルに冷媒を
供給する冷媒供給部と、を具備する圧延ロールヒートク
ラウン形状制御用誘導加熱装置。A high-frequency power supply unit; a hollow high-frequency coil excited by high-frequency power supplied from the high-frequency power supply unit and wound in a substantially rectangular shape in a plane perpendicular to the surface of a rolling roll; A U-shaped cooling plate that is opened toward a rolling roll integrated with the coil at an appropriate distance from a side close to the rolling roll of the coil, and a rolling roll of the high-frequency coil that is fitted between the cooling plates. A roll-shaped heat crown comprising: a U-shaped ferromagnetic material that opens toward a rolling roll inserted into a side close to a roll; and a refrigerant supply unit that supplies a refrigerant to the high-frequency power supply unit and the high-frequency coil. Induction heating device for shape control.
て励磁され、圧延ロール表面に平行な平面内で略矩形に
巻回される高周波コイルと、 前記高周波コイルの圧延ロールの軸と平行な２つの辺の
それぞれに適当な間隔を隔ててコイルと一体化される圧
延ロールに向かって開口するＵ字型の冷却板と、 前記冷却板間に嵌め込まれ、前記高周波コイルの圧延ロ
ールに近接した辺に挿入される圧延ロールに向かって開
口するＵ字型の強磁性体と、 前記高周波電力供給部および前記高周波コイルに冷媒を
供給する冷媒供給部と、を具備する圧延ロールヒートク
ラウン形状制御用誘導加熱装置。2. A high-frequency power supply unit, a high-frequency coil excited by high-frequency power supplied from the high-frequency power supply unit and wound in a substantially rectangular shape in a plane parallel to the surface of the rolling roll, A U-shaped cooling plate that is open toward the rolling roll integrated with the coil at an appropriate distance from each of two sides parallel to the axis of the rolling roll, and a U-shaped cooling plate fitted between the cooling plates, A U-shaped ferromagnetic material that opens toward a rolling roll inserted into a side close to the rolling roll of the coil; and a refrigerant supply unit that supplies a refrigerant to the high-frequency power supply unit and the high-frequency coil. Induction heating device for roll crown heat crown shape control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02891899A JP3300759B2 (en) | 1999-02-05 | 1999-02-05 | Induction heating device for roll crown heat crown shape control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02891899A JP3300759B2 (en) | 1999-02-05 | 1999-02-05 | Induction heating device for roll crown heat crown shape control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000225406A JP2000225406A (en) | 2000-08-15 |
| JP3300759B2 true JP3300759B2 (en) | 2002-07-08 |
Family
ID=12261794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02891899A Expired - Fee Related JP3300759B2 (en) | 1999-02-05 | 1999-02-05 | Induction heating device for roll crown heat crown shape control |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3300759B2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100408662B1 (en) * | 1999-09-14 | 2003-12-11 | 주식회사 포스코 | Skin pass work roll heater |
| JP2002210510A (en) * | 2001-01-15 | 2002-07-30 | Mitsubishi Heavy Ind Ltd | Apparatus and method for induction heating rolling roll |
| US8568838B2 (en) * | 2006-08-07 | 2013-10-29 | Messier-Bugatti-Dowty | Power control for densification of one or more porous articles |
| KR101536355B1 (en) * | 2007-12-27 | 2015-07-13 | 주식회사 포스코 | Cooling roll for the crown control of roll |
| JP5508745B2 (en) * | 2008-04-08 | 2014-06-04 | ハイデック株式会社 | Induction heating roll |
| CN103212580B (en) * | 2013-04-10 | 2015-11-11 | 东北大学 | A kind of operation of rolling rolling mill roll on-line heating device and method |
| CN103240275B (en) * | 2013-05-14 | 2014-05-07 | 吉林大学 | On-line heating device and heating method of magnesium alloy sheet warm rolling rollers |
| CN104858234A (en) * | 2014-02-25 | 2015-08-26 | 中信国安盟固利动力科技有限公司 | Method and system for induction heating of hot-rolling mill rollers for lithium battery pole pieces |
| DE102015210680A1 (en) * | 2015-06-11 | 2016-12-15 | Sms Group Gmbh | Method and device for controlling a parameter of a rolling stock |
| CN114728315A (en) * | 2020-01-29 | 2022-07-08 | 普锐特冶金技术日本有限公司 | Rolling mill and method for rolling metal plate |
-
1999
- 1999-02-05 JP JP02891899A patent/JP3300759B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000225406A (en) | 2000-08-15 |
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