JP3216797B2 - Metal strip passing device and method - Google Patents
Metal strip passing device and methodInfo
- Publication number
- JP3216797B2 JP3216797B2 JP25165296A JP25165296A JP3216797B2 JP 3216797 B2 JP3216797 B2 JP 3216797B2 JP 25165296 A JP25165296 A JP 25165296A JP 25165296 A JP25165296 A JP 25165296A JP 3216797 B2 JP3216797 B2 JP 3216797B2
- Authority
- JP
- Japan
- Prior art keywords
- guide surface
- gas flow
- speed gas
- liquid supply
- passing
- 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
Landscapes
- Replacement Of Web Rolls (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、連続圧延などの処
理がなされて搬送され、コイラーに巻き取られる金属帯
を高速気体流により浮上状態で吸引支持する通板装置
と、この装置を用いた金属帯の通板方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a threading apparatus for sucking and supporting a metal strip which is conveyed after being subjected to a process such as continuous rolling and wound by a coiler in a floating state by a high-speed gas flow, and using this apparatus. The present invention relates to a method for passing a metal strip through a plate.
【０００２】[0002]
【従来の技術】従来、鋼帯の熱間圧延はスラブ毎にバッ
チ式で行われて１本のコイルに巻き取られていたが、近
年になって、スラブを粗圧延したシートバーを接合し、
これを連続的に仕上げ圧延する連続熱間圧延が行われつ
つある。この連続熱間圧延では、仕上げ圧延後の鋼帯を
接合位置でシャーにより切断しながら、ラインに沿って
配置された複数のコイラーで交互に複数のコイルに巻き
取ることが行われる。2. Description of the Related Art Conventionally, hot rolling of a steel strip has been carried out in batches for each slab and wound up into a single coil. In recent years, however, sheet bars obtained by roughly rolling slabs have been joined together. ,
Continuous hot rolling for continuously finishing and rolling this is being performed. In this continuous hot rolling, while the steel strip after finish rolling is cut by a shear at a joining position, the steel strip is alternately wound around a plurality of coils by a plurality of coilers arranged along a line.
【０００３】このような連続熱間圧延によれば、板厚の
薄い熱延材が得られる反面、時間当たりの生産重量が減
少するため、所定の販売量を確保するためには高速通板
を行う必要がある。また、仕上げ圧延機の出側における
鋼帯の温度を確保するためにも、ラインピードを例えば
１０００ｍｐｍ以上にする必要がある。[0003] According to such continuous hot rolling, a hot rolled material having a small thickness can be obtained, but the production weight per hour is reduced. There is a need to do. Further, in order to secure the temperature of the steel strip at the exit side of the finishing mill, the line speed needs to be set to, for example, 1000 mpm or more.
【０００４】このような高速通板を可能にするために、
例えば特開平７−１２４６２４号公報には、搬送される
金属帯を高速気体流により浮上状態で吸引支持する通板
装置が提案されている。この装置は、所定容積のチャン
バと、このチャンバの下面全体を覆うガイド材とで構成
され、ガイド材の下面が、搬送される金属帯の面に対し
て所定間隔を開けて対向配置される案内面となってお
り、このガイド材に高速気体流を発生させるノズルが形
成されている。[0004] In order to enable such high-speed threading,
For example, Japanese Unexamined Patent Publication (Kokai) No. 7-124624 proposes a passing plate device that suctions and supports a metal strip to be conveyed in a floating state by a high-speed gas flow. This device is composed of a chamber having a predetermined volume and a guide member that covers the entire lower surface of the chamber, and a guide member in which the lower surface of the guide member is opposed to the surface of the metal strip to be conveyed at a predetermined interval. The guide member is formed with a nozzle for generating a high-speed gas flow.
【０００５】そして、前記公報に記載の技術では、例え
ば、連続熱間圧延ラインにおいて、コイラー直前のピン
チロールの入側やシャーの入側および出側などにこの通
板装置を設置し、シャーにより切断された鋼帯の先端が
この通板装置に達する前に前記案内面に高速気体流を形
成し、前記先端がこの通板装置に達した後は当該鋼帯を
高速気体流により浮上状態で吸引支持して、鋼帯の見掛
けの剛性を高くすることにより高速通板させることが行
われている。According to the technique described in the above publication, for example, in a continuous hot rolling line, the threading device is installed on the entrance side of a pinch roll immediately before the coiler, the entrance side and the exit side of a shear, and the like. A high-speed gas flow is formed on the guide surface before the end of the cut steel strip reaches the passing device, and the steel strip is floated by the high-speed gas flow after the tip reaches the passing device. A high-speed threading is performed by increasing the apparent rigidity of the steel strip by suction support.
【０００６】[0006]
【発明が解決しようとする課題】しかしながら、前記従
来の技術では、シャーにより切断された鋼帯の先端部分
にはスプリングバックが生じ、長手方向に波打ちながら
搬送されるため、当該先端部分が前記通板装置の案内面
に接触して板にすり疵が発生する恐れがある。However, in the above-mentioned conventional technique, springback occurs at the tip of the steel strip cut by the shear, and the steel strip is conveyed while waving in the longitudinal direction. There is a risk that the plate will be scratched by contact with the guide surface of the plate device.
【０００７】本発明は、このような従来技術の問題点に
着目してなされたものであり、搬送される金属帯を案内
面に沿う高速気体流により浮上状態で吸引支持する金属
帯の通板装置において、前記案内面に鋼帯が接触しても
すり疵などが発生し難い通板装置およびこの装置による
通板方法を提供することを課題とする。The present invention has been made in view of such problems of the prior art, and a metal strip passing plate which supports a metal strip to be conveyed in a floating state by a high-speed gas flow along a guide surface. It is an object of the present invention to provide a threading device and a threading method using the device, in which abrasion or the like hardly occurs even when a steel strip comes into contact with the guide surface.
【０００８】[0008]
【課題を解決するための手段】上記課題を解決するため
に、請求項１に係る発明は、搬送される金属帯の面に対
して所定間隔を開けて対向配置される案内面と、当該案
内面に沿う高速気体流を発生させる高速気体流発生手段
とを備え、搬送される金属帯を高速気体流により浮上状
態で吸引支持する金属帯の通板装置において、前記案内
面に液体を供給する液体供給手段を備えたことを特徴と
する金属帯の通板装置を提供する。According to a first aspect of the present invention, there is provided a guide surface which is disposed opposite to a surface of a metal strip to be conveyed at a predetermined interval, A high-speed gas flow generating means for generating a high-speed gas flow along the surface, wherein a liquid is supplied to the guide surface in a metal band passing device that suctions and supports the conveyed metal band in a floating state by the high-speed gas flow. A metal strip passing device provided with a liquid supply means is provided.
【０００９】請求項２に係る発明は、請求項１記載の金
属帯の通板装置において、高速気体流発生手段は案内面
に設けた気体噴出口を備え、液体供給手段は当該気体噴
出口から液体を噴出することにより案内面に液体を供給
することを特徴とする。According to a second aspect of the present invention, in the metal strip passing device according to the first aspect, the high-speed gas flow generating means includes a gas outlet provided on the guide surface, and the liquid supply means is provided from the gas outlet. The liquid is supplied to the guide surface by ejecting the liquid.
【００１０】請求項３に係る発明は、請求項１または２
記載の通板装置を用いて案内面に導入された部分を浮上
状態で吸引支持しながら搬送する金属帯の通板方法にお
いて、高速気体流発生手段による高速気体流の発生を液
体供給手段による液体供給と同時に行うことを特徴とす
る金属帯の通板方法を提供する。[0010] The invention according to claim 3 is the invention according to claim 1 or 2.
In the method of passing a metal band, wherein the portion introduced to the guide surface is lifted and supported while being floated using the passing device described in the above, the generation of the high-speed gas flow by the high-speed gas flow generation means is performed by the liquid supply means. Provided is a method for passing a metal strip through a metal strip, the method being performed simultaneously with the feeding.
【００１１】請求項４に係る発明は、請求項１または２
記載の通板装置を用いて案内面に導入された部分を浮上
状態で吸引支持しながら搬送する金属帯の通板方法にお
いて、先ず液体供給手段による液体供給のみを所定時間
行い、次に金属帯の先端が案内面に導入される前に、こ
の液体供給を停止して高速気体流発生手段による高速気
体流の発生を開始することを特徴とする金属帯の通板方
法を提供する。[0011] The invention according to claim 4 is the invention according to claim 1 or 2.
In the method of passing a metal band while supporting the portion introduced to the guide surface in a floating state while sucking and supporting the portion introduced into the guide surface using the passing device described above, first, only liquid supply by liquid supply means is performed for a predetermined time, and then the metal band is fed. The liquid supply is stopped and the generation of the high-speed gas flow is started by the high-speed gas flow generation means before the tip of the metal strip is introduced into the guide surface.
【００１２】請求項５に係る発明は、請求項１または２
記載の通板装置を用いて案内面に導入された部分を浮上
状態で吸引支持しながら搬送する金属帯の通板方法にお
いて、金属帯の先端が案内面に導入される前に、高速気
体流発生手段による高速気体流の発生と液体供給手段に
よる液体供給を同時に所定時間行い、その後に液体供給
のみを停止することを特徴とする金属帯の通板方法を提
供する。The invention according to claim 5 is the invention according to claim 1 or 2
In the method for passing a metal band while supporting the portion introduced to the guide surface in a floating state by suction using the passing device described in the above, the high-speed gas flow is performed before the tip of the metal band is introduced to the guide surface. Provided is a method of passing a metal strip through which a high-speed gas flow is generated by a generation unit and a liquid supply is simultaneously performed by a liquid supply unit for a predetermined time, and thereafter, only the liquid supply is stopped.
【００１３】[0013]
【発明の実施の形態】以下、本発明の実施形態について
説明する。図１は、本発明の一実施形態に相当する通板
装置を示す板幅方向断面図であり、図２は、この通板装
置が配置された連続熱間圧延ラインの巻取り側を示す概
略構成図である。Embodiments of the present invention will be described below. FIG. 1 is a cross-sectional view in the sheet width direction showing a threading device corresponding to an embodiment of the present invention, and FIG. 2 is a schematic diagram illustrating a winding side of a continuous hot rolling line in which the threading device is arranged. It is a block diagram.
【００１４】この通板装置１は、所定容積のチャンバ１
１と、このチャンバ１１の下面全体を覆うガイド材１２
と、チャンバ１１の上部に接続された気体供給配管２お
よび液体供給配管３とで構成されている。ガイド材１２
には、上下方向に斜めに貫通するノズル孔１２ａ，１２
ｂが、パスラインに沿って所定間隔で複数対形成されて
いる。各ノズル孔１２ａ，１２ｂは、ガイド材１２の板
幅方向中央部から板幅方向両端側に向けて下方が拡がる
形状に形成されている。また、ガイド材１２の下面は平
面状に形成されて、鋼帯（金属帯）Ｓの上面に対向配置
される案内面１２ｃとなっている。The threading apparatus 1 has a chamber 1 having a predetermined volume.
1 and a guide member 12 covering the entire lower surface of the chamber 11
And a gas supply pipe 2 and a liquid supply pipe 3 connected to the upper part of the chamber 11. Guide material 12
The nozzle holes 12a, 12 penetrating obliquely in the vertical direction
b are formed at predetermined intervals along the pass line. Each of the nozzle holes 12a and 12b is formed in a shape that expands downward from the center of the guide member 12 in the plate width direction toward both ends in the plate width direction. In addition, the lower surface of the guide member 12 is formed in a planar shape, and serves as a guide surface 12c that is arranged to face the upper surface of the steel strip (metal strip) S.
【００１５】ここでは、搬送される鋼帯Ｓの板幅方向に
三台の通板装置１が設置され、一台は板幅方向中心部に
固定配置され、他の二台は板幅方向両端部に板幅方向に
移動可能に配置されている。なお、符号４は鋼帯Ｓの下
面を案内するテーブルローラを示し、各通板装置１は、
テーブルローラ４の軸方向両端の上方に設置された支持
部材５に支持されて、テーブルローラ４と案内面１２ｃ
との間に所定寸法の隙間Ｌ（例えば１０〜５０ｍｍ）を
開けて配置されている。Here, three threading devices 1 are installed in the width direction of the steel strip S to be conveyed, one is fixedly disposed at the center in the width direction, and the other two are at both ends in the width direction. The part is arranged so as to be movable in the width direction of the plate. Reference numeral 4 denotes a table roller for guiding the lower surface of the steel strip S.
The table roller 4 and the guide surface 12c are supported by a support member 5 installed above both ends in the axial direction of the table roller 4.
Are arranged with a gap L (for example, 10 to 50 mm) having a predetermined dimension therebetween.
【００１６】したがって、高圧気体が気体供給配管２を
介してチャンバ１１内に導入されると、チャンバ１１内
の気体はノズル孔（気体噴出口）１２ａ，１２ｂから噴
出されて案内面１２ｃに沿う高速気体流となる。この状
態で通板装置１の直下に金属帯Ｓが存在すると、ベルヌ
ーイの原理で、金属帯Ｓの下面側の静止している外気の
圧力よりも上側の圧力の方が低くなるため、両者の差圧
で金属帯Ｓは案内面１２ｃに吸引される。ここで、金属
帯Ｓと案内面１２ｃとの間隔がある程度以上狭くなる
と、高速気体流に対する空気抵抗が増大して吸引力が弱
められるため、金属帯Ｓは吸引力と金属帯Ｓの自重とが
釣り合った位置で浮遊保持される。Therefore, when the high-pressure gas is introduced into the chamber 11 through the gas supply pipe 2, the gas in the chamber 11 is jetted from the nozzle holes (gas jet ports) 12a and 12b, and the high-speed gas flows along the guide surface 12c. It becomes a gas flow. In this state, if the metal band S exists directly below the passing device 1, the pressure on the upper side becomes lower than the pressure of the stationary outside air on the lower surface side of the metal band S by Bernoulli's principle. The metal band S is sucked to the guide surface 12c by the differential pressure. Here, if the distance between the metal band S and the guide surface 12c is reduced to some extent or more, the air resistance to the high-speed gas flow increases and the suction force is weakened. It is held floating at a balanced position.
【００１７】また、高圧気体が気体供給配管２を介して
チャンバ１１内に導入されている状態で、液体供給配管
３から水や液状潤滑剤等の液体をチャンバ１１内に導入
すると、ノズル孔１２ａ，１２ｂから液体が霧状に噴出
されて案内面１２ｃに細かい水滴が付着するとともに、
案内面１２ｃに沿う高速気体流も発生する。When a liquid such as water or a liquid lubricant is introduced into the chamber 11 from the liquid supply pipe 3 while the high-pressure gas is introduced into the chamber 11 through the gas supply pipe 2, the nozzle hole 12a , 12b, the liquid is ejected in the form of a mist, and fine water droplets adhere to the guide surface 12c.
A high-speed gas flow along the guide surface 12c is also generated.
【００１８】すなわち、この実施形態では、チャンバ１
１、気体供給配管２、ノズル孔（気体噴出口）１２ａ，
１２ｂ、および気体供給配管２への高圧気体導入機構
（図示されず）で高速気体流発生手段が構成されてい
る。また、この実施形態では、液体供給配管３によりチ
ャンバ１１内に導入された液体が、前記高速気体流発生
手段による噴出気体で案内面１２ｃに向けて噴霧される
ため、高速気体流発生手段と液体供給配管３と液体供給
配管３への液体導入機構（図示されず）とで液体供給手
段が構成されている。That is, in this embodiment, the chamber 1
1, gas supply pipe 2, nozzle hole (gas outlet) 12a,
A high-speed gas flow generating means is constituted by 12b and a high-pressure gas introduction mechanism (not shown) to the gas supply pipe 2. Further, in this embodiment, the liquid introduced into the chamber 11 by the liquid supply pipe 3 is sprayed toward the guide surface 12c by the gas ejected by the high-speed gas flow generation means. The supply pipe 3 and a liquid introduction mechanism (not shown) to the liquid supply pipe 3 constitute a liquid supply unit.
【００１９】この通板装置１は、例えば図２に示すよう
な連続熱間圧延ラインの巻取り側設備に配置される。こ
の設備は、仕上げ圧延後の鋼帯Ｓをシャー６で所定長さ
に切断しながら、ラインに沿って配置された複数のコイ
ラーＫ1 ，Ｋ2 で交互に複数のコイルに巻き取るための
ものであって、通板装置１は、シャー６の出側（コイラ
ーＫ1 の入側直前のピンチロール７の手前）およびコイ
ラーＫ2 の入り側直前のピンチロール８の手前に配置さ
れている。なお、符号９は鋼帯Ｓの上側を規制する通板
ガイドである。The threading apparatus 1 is disposed, for example, at a winding-side facility of a continuous hot rolling line as shown in FIG. This equipment is for winding a steel strip S after finishing rolling into a plurality of coils alternately by a plurality of coilers K 1 and K 2 arranged along a line while cutting the steel strip S to a predetermined length by a shear 6. a is, strip passing device 1 is disposed in front of the exit side (before the entrance side immediately before the pinch roller 7 coiler K 1) and coiler K 2 incoming side immediately before the pinch rolls 8 Shah 6. Reference numeral 9 denotes a passing plate guide that regulates the upper side of the steel strip S.
【００２０】したがって、シャー６により切断された鋼
帯Ｓの先端部分Ｓ1 が通板装置１に導入される前に、チ
ャンバ１１内への高圧気体の導入と液体の導入を同時に
開始し、これを先端部分Ｓ1 が通板装置１を通過してコ
イラーＫ1 （Ｋ2 ）に巻きつくまでの間行えば、前述の
ように鋼帯Ｓは高速気体流の作用で通板装置１に浮遊保
持されるため、鋼帯Ｓの見掛けの剛性が高くなって、高
速での通板および巻取りが安定的に行われる。また、先
端部分Ｓ1 が通板装置１に導入されたときには案内面１
２ｃに細かい水滴が付着している。そのため、シャー６
により切断された鋼帯Ｓの先端部分Ｓ1 にスプリングバ
ックが生じ、長手方向に波打ちながら搬送されることに
よってこの先端部分Ｓ1 が通板装置１の案内面１２ｃに
接触する場合でも、案内面１２ｃに付着している液滴に
よる潤滑作用で、接触した鋼帯Ｓにすり疵が発生し難く
なる。Therefore, before the leading end portion S 1 of the steel strip S cut by the shear 6 is introduced into the sheet passing apparatus 1, the introduction of the high-pressure gas and the introduction of the liquid into the chamber 11 are simultaneously started. Is carried out until the leading end portion S 1 passes through the sheet passing device 1 and winds around the coiler K 1 (K 2 ), the steel strip S floats on the sheet passing device 1 by the action of the high-speed gas flow as described above. Since the steel strip S is held, the apparent rigidity of the steel strip S is increased, and high-speed threading and winding can be performed stably. When the leading end portion S 1 is introduced into the threading device 1, the guide surface 1
Fine water droplets adhere to 2c. Therefore, Shah 6
Spring back occurs in the tip portion S 1 of the cut steel strip S by, the tip portion S 1 by being conveyed while waving in the longitudinal direction even when in contact with the guide surface 12c of the strip passing device 1, the guide surface Due to the lubricating action of the droplets adhering to 12c, scratches are less likely to occur on the contacted steel strip S.
【００２１】なお、前記実施形態では、液体の案内面１
２ｃへの供給を高速気体流発生手段を利用して行ってい
るため、装置コストが低減する効果はあるが、本発明の
通板装置はこれに限定されず、例えばチャンバ１１およ
びノズル孔１２ａ，１２ｂを兼用しないで、外側から案
内面１２ｃに直接液体を吹き付けるようになっていても
よい。In the above embodiment, the liquid guide surface 1 is used.
Since the supply to 2c is performed using the high-speed gas flow generating means, there is an effect of reducing the apparatus cost, but the plate passing apparatus of the present invention is not limited to this, and for example, the chamber 11 and the nozzle holes 12a, The liquid may be directly sprayed onto the guide surface 12c from the outside without using the 12b.
【００２２】また、案内面への液体の供給と高速気体流
の発生は必ずしも同時に行う必要はなく、先ず案内面を
液体で濡らしておき、その後液体の供給を停止して高速
気体流の発生を開始してもよいし、初めは両方を同時に
行い、所定時間後に液体の供給を停止して高速気体流の
発生のみを行うようにしてもよい。いずれにしても、鋼
帯Ｓの先端部分Ｓ1 が通板装置１に導入される前に案内
面１２ｃに液体が供給されていることが、鋼帯Ｓにすり
疵が発生し難くする上で好適である。Further, it is not always necessary to simultaneously supply the liquid to the guide surface and generate the high-speed gas flow. First, the guide surface is wetted with the liquid, and then the supply of the liquid is stopped to generate the high-speed gas flow. It may be started, or both may be performed at the same time, and after a predetermined time, the supply of the liquid may be stopped to generate only the high-speed gas flow. In any case, the liquid is supplied to the guide surface 12c before the tip portion S 1 of the steel strip S is introduced into strip passing device 1, in terms of scratches on the steel strip S is likely to occur It is suitable.
【００２３】また、案内面１２ｃの材質によっても接触
した鋼帯Ｓへのすり疵の発生し易さが異なり、案内面１
２ｃを形成するガイド材１２の材質を軟鋼とするよりは
ＦＣＤ（球状黒鉛鋳鉄）とした方がすり疵が発生し難く
なる。また、ガイド材１２の案内面側に固体潤滑剤（例
えば黒鉛や二硫化モリブデン等）の被膜を形成して、こ
の被膜を案内面１２ｃとすればすり疵の発生がより一層
低減できる。Further, the likelihood of the occurrence of scratches on the steel strip S in contact also differs depending on the material of the guide surface 12c.
When the material of the guide member 12 forming 2c is made of FCD (spheroidal graphite cast iron) rather than mild steel, scratches are less likely to occur. Further, if a coating of a solid lubricant (for example, graphite or molybdenum disulfide) is formed on the guide surface side of the guide member 12 and this coating is used as the guide surface 12c, the occurrence of scratches can be further reduced.
【００２４】図３は、通板装置１の案内面の材質と案内
面への液体供給の有無によって疵の発生率がどのように
異なるかを調べた実験の結果を示すグラフである。ここ
で、試料Ａ〜Ｄは、案内面の材質と案内面への液体供給
の有無が下記の場合を示す。なお、ここでは、図２に示
す設備による巻取りであって板厚１．０〜１．２ｍｍの
連続熱間圧延鋼帯の場合を対象とし、通板装置の稼働条
件は、鋼帯Ｓのシャー６により切断された後続材の先端
が導入される５秒ほど前に高速気体流の発生を開始し、
この先端が通板装置１を出てから１〜２秒間経過するま
で吸引支持を行った。また、案内面への液体供給を行う
場合には高速気体流を発生させる直前に１〜３秒間水を
吹き付けることとした。FIG. 3 is a graph showing the results of an experiment for examining how the flaw occurrence rate differs depending on the material of the guide surface of the threading apparatus 1 and the presence or absence of liquid supply to the guide surface. Here, samples A to D show the following cases in which the material of the guide surface and the presence or absence of liquid supply to the guide surface are as follows. In addition, here, the case where the winding by the equipment shown in FIG. 2 is a continuous hot-rolled steel strip having a thickness of 1.0 to 1.2 mm is targeted. About 5 seconds before the tip of the succeeding material cut by the shear 6 is introduced, a high-speed gas flow starts to be generated,
Suction support was performed until 1-2 seconds passed after the tip exited the sheet passing device 1. In addition, when supplying the liquid to the guide surface, water was sprayed for 1 to 3 seconds immediately before generating the high-speed gas flow.
【００２５】 Ａ：案内面の材質−軟鋼、 水供給−無 Ｂ：案内面の材質−軟鋼、 水供給−有り Ｃ：案内面の材質−ＦＣＤ、水供給−無 Ｄ：案内面の材質−ＦＣＤ、水供給−有り 図３のグラフから分かるように、案内面への水供給のみ
によって疵の発生率は１／３程度になり、これに加えて
案内面の材質を軟鋼からＦＣＤに変えることによって、
疵の発生率を１／３０にまで低減することができる。ま
た、案内面の材質を軟鋼からＦＣＤに変えることだけで
も疵の発生率を半分程度に抑えることができる。A: Guide surface material-mild steel, water supply-no B: Guide surface material-mild steel, water supply-yes C: guide surface material-FCD, water supply-no D: guide surface material-FCD As can be seen from the graph of FIG. 3, the water supply to the guide surface alone reduces the incidence of flaws to about 1/3. In addition, by changing the material of the guide surface from mild steel to FCD, ,
The occurrence rate of flaws can be reduced to 1/30. Further, the rate of occurrence of flaws can be reduced to about half only by changing the material of the guide surface from mild steel to FCD.
【００２６】[0026]
【発明の効果】以上説明したように、請求項１および２
の通板装置によれば、案内面に液体が供給されるため、
案内面に金属帯が接触してもすり疵などを発生し難くす
ることができる。特に、請求項２の場合には、気体噴出
口を液体噴出口と兼用するため、装置コストを抑えるこ
とができる。As described above, claims 1 and 2
According to the plate passing device, liquid is supplied to the guide surface,
Even when the metal strip comes into contact with the guide surface, scratches and the like can be hardly generated. In particular, in the case of the second aspect, since the gas ejection port is also used as the liquid ejection port, the apparatus cost can be reduced.
【００２７】請求項３の方法によれば、金属帯が通板装
置の案内面に浮上状態で吸引支持されている際には当該
案内面に必ず液体の供給がなされているため、案内面に
金属帯が接触してもすり疵などを発生し難くすることが
できる。According to the third aspect of the present invention, when the metal strip is supported by suction on the guide surface of the threading device in a floating state, liquid is always supplied to the guide surface. Even when the metal strip comes into contact, scratches and the like can be hardly generated.
【００２８】請求項４および５の方法によれば、案内面
に液体が供給された状態で金属帯の先端が案内面に導入
されるため、案内面に金属帯が接触してもすり疵などを
発生し難くすることができる。According to the fourth and fifth methods, the tip of the metal band is introduced into the guide surface in a state where the liquid is supplied to the guide surface. Can hardly occur.
【図１】本発明の一実施形態に相当する通板装置を示す
板幅方向断面図である。FIG. 1 is a cross-sectional view in the width direction of a sheet passing device corresponding to an embodiment of the present invention.
【図２】図１の通板装置が配置された連続熱間圧延ライ
ンの巻取り側を示す概略構成図である。FIG. 2 is a schematic configuration diagram showing a winding side of a continuous hot rolling line in which the threading device of FIG. 1 is arranged.
【図３】通板装置の案内面の材質と案内面への液体供給
の有無によって疵の発生率がどのように異なるかを調べ
た実験の結果を示すグラフである。FIG. 3 is a graph showing the results of an experiment for examining how the occurrence rate of flaws differs depending on the material of the guide surface of the threading device and the presence or absence of liquid supply to the guide surface.
１ 通板装置 １１ チャンバ（高速気体流発生手段） １２ ガイド材 １２ａ，１２ｂノズル孔（気体噴出口） １２ｃ 案内面 ２ 気体供給配管（高速気体流発生手段） ３ 液体供給配管（液体供給手段） Ｓ 鋼帯（金属帯） DESCRIPTION OF SYMBOLS 1 Passing apparatus 11 Chamber (high-speed gas flow generation means) 12 Guide material 12a, 12b Nozzle hole (gas ejection port) 12c Guide surface 2 Gas supply pipe (high-speed gas flow generation means) 3 Liquid supply pipe (liquid supply means) S Steel strip (metal strip)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 二階堂 英幸 千葉県千葉市中央区川崎町１番地 川崎 製鉄株式会社千葉製鉄所内 (56)参考文献 特開 平７−124624（ＪＰ，Ａ) 特開 平５−123733（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) B21B 39/14 B21C 47/34 ──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Hideyuki Nikaido 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Kawasaki Steel Works Co., Ltd. Chiba Works (56) References JP-A-7-124624 (JP, A) 5-123733 (JP, A) (58) Field surveyed (Int. Cl. 7 , DB name) B21B 39/14 B21C 47/34
Claims (5)
を開けて対向配置される案内面と、当該案内面に沿う高
速気体流を発生させる高速気体流発生手段とを備え、搬
送される金属帯を高速気体流により浮上状態で吸引支持
する金属帯の通板装置において、 前記案内面に液体を供給する液体供給手段を備えたこと
を特徴とする金属帯の通板装置。A guide surface is provided opposite to a surface of a metal strip to be conveyed at a predetermined interval, and high-speed gas flow generating means for generating a high-speed gas flow along the guide surface is provided. A metal band passing device for sucking and supporting a metal band in a floating state by a high-speed gas flow, comprising a liquid supply means for supplying a liquid to the guide surface.
体噴出口を備え、液体供給手段は当該気体噴出口から液
体を噴出することにより案内面に液体を供給することを
特徴とする請求項１記載の金属帯の通板装置。2. The high-speed gas flow generating means includes a gas ejection port provided on a guide surface, and the liquid supply means supplies the liquid to the guide surface by ejecting the liquid from the gas ejection port. Item 7. A metal strip passing device according to Item 1.
て案内面に導入された部分を浮上状態で吸引支持しなが
ら搬送する金属帯の通板方法において、高速気体流発生
手段による高速気体流の発生を液体供給手段による液体
供給と同時に行うことを特徴とする金属帯の通板方法。3. A method for passing a metal band while supporting a portion introduced on a guide surface in a floating state by suction using the passing device according to claim 1 or 2, wherein the high-speed gas flow generating means generates a high-speed gas flow. A method of passing a metal strip, wherein the gas flow is generated simultaneously with the liquid supply by the liquid supply means.
て案内面に導入された部分を浮上状態で吸引支持しなが
ら搬送する金属帯の通板方法において、先ず液体供給手
段による液体供給のみを所定時間行い、次に金属帯の先
端が案内面に導入される前に、この液体供給を停止して
高速気体流発生手段による高速気体流の発生を開始する
ことを特徴とする金属帯の通板方法。4. A method for passing a metal band while supporting a portion introduced into a guide surface in a floating state while sucking and supporting the portion introduced on a guide surface using the passing device according to claim 1 or 2. The liquid supply is stopped and the generation of the high-speed gas flow by the high-speed gas flow generation means is started before the tip of the metal band is introduced into the guide surface. Threading method.
て案内面に導入された部分を浮上状態で吸引支持しなが
ら搬送する金属帯の通板方法において、金属帯の先端が
案内面に導入される前に、高速気体流発生手段による高
速気体流の発生と液体供給手段による液体供給を同時に
所定時間行い、その後に液体供給のみを停止することを
特徴とする金属帯の通板方法。5. A method of passing a metal band while supporting a portion introduced to a guide surface in a floating state by suction using the threading device according to claim 1 or 2, wherein the front end of the metal band has a guide surface. Before being introduced into the metal strip, the high-speed gas flow generation means and the liquid supply means simultaneously perform the generation of the high-speed gas flow and the liquid supply for a predetermined time, and thereafter stop only the liquid supply. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25165296A JP3216797B2 (en) | 1996-09-24 | 1996-09-24 | Metal strip passing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25165296A JP3216797B2 (en) | 1996-09-24 | 1996-09-24 | Metal strip passing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1094815A JPH1094815A (en) | 1998-04-14 |
| JP3216797B2 true JP3216797B2 (en) | 2001-10-09 |
Family
ID=17226012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25165296A Expired - Fee Related JP3216797B2 (en) | 1996-09-24 | 1996-09-24 | Metal strip passing device and method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3216797B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6369688B1 (en) | 1999-06-15 | 2002-04-09 | Matsushita Electric Works, Ltd. | Automatic gang switch having a heat ray sensor |
-
1996
- 1996-09-24 JP JP25165296A patent/JP3216797B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6369688B1 (en) | 1999-06-15 | 2002-04-09 | Matsushita Electric Works, Ltd. | Automatic gang switch having a heat ray sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1094815A (en) | 1998-04-14 |
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