JP2509754B2 - Hot rolling equipment - Google Patents
Hot rolling equipmentInfo
- Publication number
- JP2509754B2 JP2509754B2 JP2315533A JP31553390A JP2509754B2 JP 2509754 B2 JP2509754 B2 JP 2509754B2 JP 2315533 A JP2315533 A JP 2315533A JP 31553390 A JP31553390 A JP 31553390A JP 2509754 B2 JP2509754 B2 JP 2509754B2
- Authority
- JP
- Japan
- Prior art keywords
- mandrel
- steel strip
- heat
- winding
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
- B21B1/34—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work by hot-rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/004—Heating the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、赤熱鋼帯の熱間圧延設備に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to hot rolling equipment for red hot steel strips.
（ロ）従来技術 従来から、赤熱鋼片より、鋼帯を製造する熱間圧延ラ
インには、鋼帯を巻き取るためのコイラが設置されてい
る。しかし、鋼帯温度が最大でも700℃以上であるた
め、通常、マンドレルには耐熱鋼を使用し、かつ水冷す
るタイプのものが採用されてきた。(B) Conventional technology Conventionally, a coiler for winding a steel strip is installed in a hot rolling line for manufacturing a steel strip from a red-hot steel slab. However, since the steel strip temperature is 700 ° C. or higher at the maximum, heat-resistant steel is usually used for the mandrel, and a water-cooled type is used.
しかし、鋼帯温度が最高1250℃で、かつ、1300℃の保
熱炉の中で、巻取・巻戻が必要な圧延ラインのコイラに
は、機械強度が不足するため従来型マンドレルは使用で
きなくなる。However, the conventional mandrel cannot be used for the coiler of the rolling line that requires winding / unwinding in the heat-retaining furnace with the maximum strip temperature of 1250 ° C and 1300 ° C because of insufficient mechanical strength. Disappear.
一般に、マンドレルに使用されている耐熱鋳鋼はSCH1
5相当であるが、高温になるほど強度が低下する。例え
ば、高温引張強さでは650℃のとき、約40kgf/mm2以下で
あったものが、1000℃になると10kgf/mm2以下にまで低
下してしまう。まして、1300℃に加熱保温されている保
熱炉内に挿入されるコイラ用マンドレルの機械的強度を
確保するためには、マンドレル軸を多量の冷却水により
冷却しなければならない。そのためには、マンドレル軸
内の水の通路を大きくとる必要があり、必然的にマンド
レル軸も太くなる。また、冷却水が増加すると、保熱炉
に投入する熱量も増加しなければならなくなる。Generally, the heat-resistant cast steel used for mandrels is SCH1.
It is equivalent to 5, but the strength decreases as the temperature rises. For example, the tensile strength at high temperature was about 40 kgf / mm 2 or less at 650 ° C, but decreased to 10 kgf / mm 2 or less at 1000 ° C. Moreover, in order to secure the mechanical strength of the mandrel for the coiler inserted in the heat-retaining furnace heated and kept at 1300 ° C, the mandrel shaft must be cooled with a large amount of cooling water. For that purpose, it is necessary to make the passage of water in the mandrel shaft large, and inevitably the mandrel shaft also becomes thick. Further, when the cooling water increases, the amount of heat input to the heat retention furnace also has to increase.
したがって、設備コスト、ランニングコストともに大
幅に増加してしまい、赤熱鋼帯を圧延することによるメ
リットは、全部帳消しになってしまう。Therefore, both the facility cost and the running cost are significantly increased, and all the merits of rolling the red hot steel strip are canceled out.
断熱材のなかで最も機械的強度の高いのがセラミック
であるが、機械的衝撃力や熱衝撃力は耐熱鋳鋼に遠く及
ばない。また、逆にフエルトやブランケットのような断
熱材は、機械的衝撃力や熱衝撃力には抜群に強いが、機
械的強度は全然ないに等しい。Ceramics have the highest mechanical strength among heat insulating materials, but their mechanical and thermal shock forces are far below those of heat-resistant cast steel. On the other hand, a heat insulating material such as felt or blanket is excellent in mechanical impact and thermal impact, but has no mechanical strength.
一方、常温から1250℃の鋼帯を圧延する設備に設置さ
れる。保熱炉内のコイラ・マンドレルには、機械的強度
・機械的衝撃特性、熱衝撃特性の高いことが要求され
る。On the other hand, it will be installed in equipment for rolling steel strips from room temperature to 1250 ° C. The coiler / mandrel in the heat retention furnace is required to have high mechanical strength, mechanical shock characteristics, and thermal shock characteristics.
したがって、常温から1300℃の温度幅がある保熱炉内
に設置されるコイラ・マンドレルは、断熱材と耐熱鋳鋼
の両方を使用して、機械的、熱的に耐えられるマンドレ
ルの構造をいかに構成するかということが最大の問題点
であった。Therefore, the coiler mandrel installed in a heat-retaining furnace with a temperature range from room temperature to 1300 ° C uses both heat insulating material and heat-resistant cast steel to construct a mandrel structure that can withstand mechanically and thermally. The biggest problem was whether to do it.
従来、熱間で少ない圧延機による圧延を行う場合、そ
の前後に長大なテーブルを要し、設備的におよび熱的に
不利となる。Conventionally, when hot rolling is performed with a small rolling mill, a long table is required before and after the rolling, which is disadvantageous in terms of equipment and heat.
特開昭59−191503号公報では、圧延機前後に加熱コイ
ラを設け、圧延材の巻取・巻戻時に圧延を行い、また、
巻取コイルを昇熱・保温する発明を提案している。In JP-A-59-191503, heating coilers are provided in front of and behind the rolling mill, and rolling is performed at the time of winding / unwinding the rolled material.
An invention has been proposed that heats and keeps the winding coil warm.
しかし、従来熱間鋼帯の巻取は設備的に難しい面（耐
熱性）があり、無心コイラが一般的であった。前述のよ
うな圧延では、圧延材に対して張力を付与する必要があ
り、また、巻取がルーズ（巻取端面が凹凸状となる）に
ならないように、マンドレル式巻取が好ましい。しか
し、耐熱性の高いマンドレルがなかった。However, winding a hot steel strip has conventionally been difficult in terms of equipment (heat resistance), and an uncentered coiler is generally used. In the rolling as described above, it is necessary to apply tension to the rolled material, and the mandrel type winding is preferable so that the winding does not become loose (the winding end surface becomes uneven). However, there was no mandrel with high heat resistance.
従来より、熱間圧延材を冷却巻取するダウンコイラ
で、巻取温度を高める要求に対処するために、特公昭60
−32694号公報では、マンドレル表面に、断熱性のスプ
ールを設けて鋼帯を巻き取る方法を提案している。ま
た、実公昭61−35293号公報では、セグメント表面に断
熱材を張り付けたマンドレルを、そして、特開昭57−36
018号公報ではセグメント表面を凹凸状とし、伝熱面積
を減じたマンドレルをそれぞれ提案している。これら
は、いずれも高温巻取または、巻取鋼帯の先端部（マン
ドレルに接する部分等）の急冷防止に適用されている。Conventionally, in the down coiler that cools and winds the hot rolled material, in order to meet the demand for raising the winding temperature, the Japanese Patent Publication Sho 60
Japanese Patent No. 32694 proposes a method of winding a steel strip by providing a heat insulating spool on the mandrel surface. Further, in Japanese Utility Model Publication No. 61-35293, a mandrel having a heat insulating material attached to the surface of a segment is disclosed.
Japanese Patent Laid-Open No. 018 proposes mandrels in which the segment surface is made uneven and the heat transfer area is reduced. All of these are applied to high temperature winding or to prevent rapid cooling of the tip end portion (a portion in contact with the mandrel, etc.) of the winding steel strip.
このような高温巻取を実現する巻取機として、特開昭
61−14020号公報に提案されているものがある。それ
は、マンドレルの外周を断熱フードで覆い、ガイド類も
断熱・耐熱対策を施したコイラが提案されている。しか
し、このマンドレルは、仕上げ圧延温度が800〜900℃以
下の温度の高温材に適用されるにすぎない。断熱も、主
として放射冷却を防止する程度のものであり、各部の構
造材は、強度を失うほどの温度ではない。A winding machine that realizes such high-temperature winding is disclosed in
There is one proposed in Japanese Patent No. 61-14020. A coiler has been proposed in which the outer circumference of the mandrel is covered with a heat insulating hood and the guides are also heat insulated and heat resistant. However, this mandrel is only applied to high temperature materials having finish rolling temperatures of 800 to 900 ° C or lower. The heat insulation is also mainly for preventing radiative cooling, and the structural materials of the respective parts are not at a temperature at which strength is lost.
（ハ）発明が解決しようとする課題 本発明が解決しようとする課題は、小規模なスペース
および装置で熱間鋼帯を効率よくかつ正確に圧延できる
設備およびその設備中のコイラに用いるマンドレルを耐
熱性にする構造を得ることにある。(C) Problem to be Solved by the Invention The problem to be solved by the present invention is to provide a facility for efficiently and accurately rolling a hot steel strip in a small space and a device and a mandrel used for a coiler in the facility. The purpose is to obtain a heat-resistant structure.
（ニ）課題を解決するための手段 本発明の熱間圧延設備は、熱間圧延機によって熱間鋼
帯を圧延するラインにおいて、該ラインの両端にそれぞ
れ設けられたコイルボックスと、該コイルボックス内に
それぞれ設けられていて鋼帯の巻取・巻戻を行うコイラ
と、前記熱間圧延機と前記コイルボックスの少なくとも
一方との間に設けられた加熱・保温炉と、前記コイルボ
ックスを鋼帯の幅方向に移動する駆動機器と、前記各コ
イルボックスの入側に設けられていて鋼帯の蛇行を検出
する蛇行検出器と、該蛇行検出器の出力にもとづいて前
記駆動機器の作動を制御する制御器とからなり、前記コ
イラはそれぞれ鋼帯の巻取・巻戻用のマンドレルを備
え、該マンドレルは、耐熱鋳鋼からなる心軸の外周の鋼
帯巻付き領域にセラミックからなる複数分割の弓形セグ
メントを固定し、該セグメント間および該セグメントと
前記心軸との間の間隙に断熱シートを挿入し、前記心軸
の外周の軸受領域を成形断熱材で被覆し、前記心軸の直
径方向でかつ前記鋼帯巻付き領域に鋼帯先端を銜え込む
耐熱鋼からなるグリッパを固定した構成になっている手
段によって、上記課題を解決している。(D) Means for Solving the Problems The hot rolling equipment of the present invention is a line for rolling a hot steel strip by a hot rolling mill, and a coil box provided at each end of the line, and the coil box. A coiler that winds and unwinds a steel strip provided inside each, a heating and heat-retaining furnace provided between at least one of the hot rolling mill and the coil box, and the coil box made of steel. A drive device that moves in the width direction of the strip, a meandering detector that is provided on the entrance side of each coil box and detects the meandering of the steel strip, and the operation of the drive device based on the output of the meandering detector. The coiler includes a mandrel for winding / unwinding steel strips, and the mandrel is divided into a plurality of ceramic strips in a steel strip winding region on the outer periphery of a mandrel made of heat-resistant cast steel. Fixing the arcuate segments, inserting a heat insulating sheet into the gaps between the segments and between the segment and the mandrel, covering the bearing region on the outer periphery of the mandrel with molded heat insulating material, and The above problem is solved by means of a structure in which a gripper made of heat-resistant steel that holds the tip of the steel strip in the direction and in the area where the steel strip is wound is fixed.
（ホ）作用 一般に、コイラ等で鋼帯を巻き取る際には、鋼帯にテ
ンションをかけながら巻き取る必要がある。そのとき、
コイラのマカドレルにはそのテンションによる巻締り力
がかかる。また、鋼帯が蛇行すると、巻取状態がタケノ
コ状になるため蛇行調整が必要である。このときは、マ
ンドレルに曲げ応力がかかり、板切れの際にはその状態
に応じたさまざまな衝撃力がかかる。マンドレルには鋼
帯の先端を挾み込むスリットが必要である。しかし、巻
始めにはその鋼帯を曲げるために部分的な力もかかる。
また、マンドレルが保熱炉内に挿入されるため、常温か
ら1300℃に昇温するまでの温度変化に耐え、かつ常温か
ら1250℃の幅を持つ鋼帯からの熱的影響にも耐えなけれ
ばならない。以上を解決するため、本発明では断熱材と
耐熱鋳鋼の利点を組み合せる。(E) Action Generally, when winding a steel strip with a coiler or the like, it is necessary to wind the strip while applying tension to the steel strip. then,
The coiler's macadle is subjected to a tightening force due to its tension. Further, when the steel strip meanders, the winding state becomes a bamboo-like shape, and thus the meandering adjustment is necessary. At this time, bending stress is applied to the mandrel, and when the plate is cut, various impact forces are applied according to the state. The mandrel needs a slit that holds the tip of the steel strip. However, at the beginning of winding, a partial force is applied to bend the steel strip.
Also, since the mandrel is inserted into the heat-retaining furnace, it must withstand the temperature change from room temperature to 1300 ° C and withstand the thermal effects from the steel strip having a width of 1250 ° C from room temperature. I won't. In order to solve the above, the present invention combines the advantages of heat insulating materials and heat-resistant cast steel.
コイラ内は短時間で、鋼帯の巻取・巻戻が行われるこ
とにより、内部で加熱するのは制御的（容積に応じた加
熱量調整）に難しく、鋼帯全長にわたって均一加熱する
ことが難しいので、加熱は別に設ける。張力付与のた
め、マンドレルに巻き取る必要があり、早期張力可能と
するために、グリップ式とする。コイルの巻取時の調整
は、炉外に設けた計測器（耐熱上の関係）で調整可能と
するためにカバーの一部を開閉可能にする。なお、マン
ドレル内部は水冷とする。As the steel strip is wound and unwound within a short time in the coiler, it is difficult to control the heating inside (adjusting the heating amount according to the volume), and it is possible to uniformly heat the entire length of the steel strip. Since it is difficult, heating is provided separately. In order to apply tension, it is necessary to wind it around a mandrel, and a grip type is used to enable early tension. To adjust the coil winding, a part of the cover can be opened / closed so that it can be adjusted by a measuring device (heat resistance) provided outside the furnace. The inside of the mandrel is water cooled.
（ヘ）実施例 次に、第１図から第６図までを参照して、本発明の熱
間圧延設備の実施例について説明する。(F) Example Next, an example of the hot rolling facility of the present invention will be described with reference to FIGS. 1 to 6.
本発明の熱間圧延設備は、第１図に概略的に示すよう
に、熱間圧延機１によって熱間鋼帯２を圧延するライン
３に適用される。The hot rolling equipment of the present invention is applied to a line 3 for rolling a hot steel strip 2 by a hot rolling mill 1 as schematically shown in FIG.
本発明の熱間圧延設備は、ライン３の両端にそれぞれ
設けられたコイルボックス４と、コイルボックス４内に
それぞれ設けられていて鋼帯２の巻取・巻戻を行うコイ
ラ５と、熱間圧延機１とコイルボックス４の少なくとも
一方との間に設けられた加熱・保温炉６と、コイルボッ
クス４を鋼帯２の幅方向に移動する駆動機器７と、各コ
イルボックス４の入側に設けられていて鋼帯の蛇行を検
出する蛇行検出器８と、蛇行検出器８の出力にもとづい
て駆動機器７の作動を制御する制御器９とからなる。The hot rolling equipment of the present invention includes a coil box 4 provided at each end of the line 3, a coiler 5 provided in each of the coil boxes 4 for winding / unwinding the steel strip 2, and a hot rolling machine. A heating / heat-retaining furnace 6 provided between the rolling mill 1 and at least one of the coil boxes 4, a drive device 7 for moving the coil boxes 4 in the width direction of the steel strip 2, and an inlet side of each coil box 4. It comprises a meandering detector 8 which is provided and detects the meandering of the steel strip, and a controller 9 which controls the operation of the drive device 7 based on the output of the meandering detector 8.
第２図および第３図は本発明にもとづいて構成された
実機の側面図および正面図である。2 and 3 are a side view and a front view of an actual machine configured according to the present invention.
第１図および第２図に示すように、コイルボックス４
の入側には１対のピンチロール41がそれぞれ設けられて
いる。コイルボックス４の外部には、鋼帯の巻付きを確
認するための検出器42が設けられている。また、コイル
ボックス４は開閉自在のカバー43（第２図）が取り付け
られている。As shown in FIGS. 1 and 2, the coil box 4
A pair of pinch rolls 41 is provided on the entrance side of each. A detector 42 for confirming the winding of the steel strip is provided outside the coil box 4. The coil box 4 is attached with a cover 43 (Fig. 2) that can be opened and closed.
第３図に示すように、コイラ５はコイルボックス４の
外部に設けてある回転駆動機器51によって回転される。
コイルボックス４は支持台10上で駆動機器７によって鋼
帯２の幅方向に移動される。As shown in FIG. 3, the coiler 5 is rotated by a rotary drive device 51 provided outside the coil box 4.
The coil box 4 is moved on the support 10 by the driving device 7 in the width direction of the steel strip 2.
次に、第４図から第６図までを参照して、本発明の設
備に用いられるマンドレル52の実施例について説明す
る。Next, an embodiment of the mandrel 52 used in the equipment of the present invention will be described with reference to FIGS. 4 to 6.
マンドレル52は、コイラ５に設けられる。マンドレル
52は、耐熱鋳鋼からなる心軸521の外周の鋼帯巻付き領
域Ｓにセラミックからなる複数分割の弓形セグメント52
2を固定し、セグメント522間およびセグメント522と心
軸521との間の間隙に断熱シート523を挿入し、心軸521
の外周の軸受領域Ｊを成形断熱材524で被覆し、心軸521
の直径方向でかつ鋼帯巻付き領域Ｓに鋼帯先端を銜え込
む耐熱鋼からなるグリッパ525を固定した構成になって
いる。The mandrel 52 is provided on the coiler 5. Mandrel
Reference numeral 52 designates a plurality of arcuate segments 52 made of ceramic in a steel band winding region S on the outer periphery of a mandrel 521 made of heat-resistant cast steel.
2 is fixed, and the heat insulating sheet 523 is inserted into the gaps between the segments 522 and between the segments 522 and the mandrel 521.
The bearing area J on the outer periphery of the shaft 521 is covered with the molded heat insulating material 524.
The gripper 525 made of heat-resistant steel for gripping the front end of the steel strip is fixed in the diametrical direction and in the region S around the steel strip.
なお、心軸521を冷却するために、心軸521の軸心方向
に通路526が設けられている。In order to cool the mandrel 521, a passage 526 is provided in the axial direction of the mandrel 521.
弓形セグメント522は、第６図に示すように、ボルト5
27によって心軸521に固定される。ボルト527の頭部内側
には皿バネ528が入れられてネジのゆるみを防止すると
ともに、ボルト527の頭部上方には断熱材529が埋め込ま
れる。The arcuate segment 522, as shown in FIG.
It is fixed to the mandrel 521 by 27. A disc spring 528 is inserted inside the head of the bolt 527 to prevent the screw from loosening, and a heat insulating material 529 is embedded above the head of the bolt 527.
第４図に示すように、コイルボックス４から外に出る
マンドレル52の部分を不活性ガス封入部44によって密封
し、酸化防止を図っている。As shown in FIG. 4, the portion of the mandrel 52 that goes out from the coil box 4 is sealed by an inert gas enclosure 44 to prevent oxidation.
次に、マンドレル52の具体的実施例について説明す
る。Next, a specific example of the mandrel 52 will be described.
心軸521にSCHI0相当かそれ以上の耐熱鋳鋼を使用し、
直径は、スリットによる切欠係数を考慮した上で、板の
巻締力に耐える寸法をとる。その外周に、円弧150mmか
ら300mm、長さで120mmから180mm、厚み50mmから100mmの
セラミックのセグメント522をそれぞれ４本のボルト527
で仕上りが真円になるように固定する。Uses heat resistant cast steel equivalent to SCHI0 or more for the core shaft 521,
The diameter should be a dimension that can withstand the tightening force of the plate, taking into consideration the notch coefficient of the slit. Four ceramic bolts 527, each of which has a circular arc of 150 mm to 300 mm, a length of 120 mm to 180 mm, and a thickness of 50 mm to 100 mm, are formed on the ceramic segment 522.
And fix it so that the finish is perfect.
このセラミックのセグメント522と耐熱鋳鋼の心軸521
との境界およびセグメント間には0.5mmから1.5mmのギャ
ップを設け、その間にクッション材としてアスベストシ
ート523を挿入する。また、セグメント522の耐熱鋳鋼側
コーナ部はC4からC6の面取りを施し、取付けボルト527
には皿バネ528＋平座金を使用して締め付け、その外側
には、直接熱がボルト527に及ばないよう断熱材529を充
填する。This ceramic segment 522 and heat-resistant cast steel mandrel 521
A gap of 0.5 mm to 1.5 mm is provided between the boundary and the segment, and an asbestos sheet 523 is inserted as a cushion material therebetween. In addition, the corner of the heat-resistant cast steel side of segment 522 is chamfered from C4 to C6, and the mounting bolt 527
Is tightened using a disc spring 528 + plain washer, and the outside is filled with heat insulating material 529 so that heat does not directly reach the bolt 527.
上記構造の構成は、鋼帯の板厚、幅、温度の他、保温
炉の最高使用温度、昇降温速度、セラミックの材質等に
よって異なるが、上記寸法の範囲で製作すれば、問題な
く熱間におけるコイラの機能を満足させることが可能と
なる。The structure of the above structure varies depending on the plate thickness, width and temperature of the steel strip, the maximum operating temperature of the heat insulating furnace, the temperature rising / falling rate, the material of the ceramics, etc. It is possible to satisfy the function of the coiler in.
（ト）効果 本発明によれば、既存設備のわずかな変更によって、
小規模の空間と装置からなる設備によって、効率的な熱
間圧延が可能となる。また、コイラに使用するマンドレ
ルは広範囲の温度変化に耐えるので、マンドレルの故障
は激減する。(G) Effect According to the present invention, by slightly changing the existing equipment,
Efficient hot rolling is possible with equipment consisting of a small space and equipment. Further, since the mandrel used for the coiler withstands a wide range of temperature changes, the mandrel failure is drastically reduced.
第１図は本発明の熱間圧延設備の概略構成説明図。第２
図は本発明にもとづいて構成された熱間圧延設備の一部
の側面図。第３図は第２図のIII−III線からみた正面
図。第４図は本発明のコイラに用いるマンドレルの一部
の縦断面図。第５図は第４図のＶ−Ｖ線からみた横断面
図。第６図は第５図のVI−VI線からみた部分断面図。 1:熱間圧延機、2:熱間鋼帯 3:熱間圧延ライン、4:コイルボックス 5:コイラ、6:加熱・保温炉 7:駆動機器、8:蛇行検出器FIG. 1 is a schematic configuration explanatory view of a hot rolling facility of the present invention. Second
The figure is a side view of a portion of a hot rolling facility constructed according to the present invention. FIG. 3 is a front view seen from the line III-III in FIG. FIG. 4 is a longitudinal sectional view of a part of the mandrel used in the coiler of the present invention. FIG. 5 is a cross-sectional view taken along the line VV of FIG. FIG. 6 is a partial sectional view taken along the line VI-VI in FIG. 1: Hot rolling mill, 2: Hot steel strip 3: Hot rolling line, 4: Coil box 5: Coiler, 6: Heating / heat-retaining furnace 7: Drive equipment, 8: Meandering detector
───────────────────────────────────────────────────── フロントページの続き (72)発明者 沖 俊幸 茨城県鹿島郡鹿島町大字光３番地 鹿島 プラント工業株式会社内 (56)参考文献 特開 昭59−191502（ＪＰ，Ａ) 実開 平２−114110（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshiyuki Oki No.3 Hikari, Oshima, Kashima-cho, Kashima-gun, Kashima-gun, Ibaraki Kashima Plant Industry Co., Ltd. (56) Reference JP-A-59-191502 (JP, A) -114110 (JP, U)
Claims (1)
インにおいて、該ラインの両端にそれぞれ設けられたコ
イルボックスと、該コイルボックス内にそれぞれ設けら
れていて鋼帯の巻取・巻戻を行うコイラと、前記熱間圧
延機と前記コイルボックスの少なくとも一方との間に設
けられた加熱・保温炉と、前記コイルボックスを鋼帯の
幅方向に移動する駆動機器と、前記各コイルボックスの
入側に設けられていて鋼帯の蛇行を検出する蛇行検出器
と、該蛇行検出器の出力にもとづいて前記駆動機器の作
動を制御する制御器とからなり、前記コイラはそれぞれ
鋼帯の巻取・巻戻用のマンドレルを備え、該マンドレル
は、耐熱鋳鋼からなる心軸の外周の鋼帯巻付き領域にセ
ラミックからなる複数分割の弓形セグメントを固定し、
該セグメント間および該セグメントと前記心軸との間の
間隙に断熱シートを挿入し、前記心軸の外周の軸受領域
を成形断熱材で被覆し、前記心軸の直径方向でかつ前記
鋼帯巻付き領域に鋼帯先端を銜え込む耐熱鋼からなるグ
リッパを固定した構成になっていることを特徴とした熱
間圧延設備。1. In a line for rolling a hot steel strip by a hot rolling mill, coil boxes provided at both ends of the line, and winding and winding of steel strips respectively provided in the coil boxes. A coiler for returning, a heating / heat-retaining furnace provided between at least one of the hot rolling mill and the coil box, a drive device for moving the coil box in the width direction of the steel strip, and the coils. A meandering detector provided on the entrance side of the box for detecting the meandering of the steel strip, and a controller for controlling the operation of the drive device based on the output of the meandering detector, each of the coilers being a steel strip. Of the mandrel for winding and rewinding, the mandrel is fixed to a plurality of arcuate segments made of ceramic in a steel band winding region on the outer periphery of the core made of heat-resistant cast steel,
A heat insulating sheet is inserted between the segments and in a gap between the segment and the mandrel, and a bearing region on the outer periphery of the mandrel is covered with a molded heat insulating material, and the steel strip is wound in the diametrical direction of the mandrel and in the steel strip winding. A hot rolling facility characterized in that a gripper made of heat-resistant steel that holds the tip of the steel strip into the attached area is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2315533A JP2509754B2 (en) | 1990-11-20 | 1990-11-20 | Hot rolling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2315533A JP2509754B2 (en) | 1990-11-20 | 1990-11-20 | Hot rolling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04187314A JPH04187314A (en) | 1992-07-06 |
| JP2509754B2 true JP2509754B2 (en) | 1996-06-26 |
Family
ID=18066484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2315533A Expired - Lifetime JP2509754B2 (en) | 1990-11-20 | 1990-11-20 | Hot rolling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2509754B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4876622B2 (en) * | 2006-02-21 | 2012-02-15 | トヨタ紡織株式会社 | Uncoiler for progressive press machine |
| CN103056168B (en) * | 2013-01-10 | 2015-09-30 | 北京首钢股份有限公司 | A kind of method controlling deviation of intermediate billet of coil box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59191502A (en) * | 1983-04-15 | 1984-10-30 | Hitachi Ltd | Steckel mill |
| JPH0519128Y2 (en) * | 1989-02-28 | 1993-05-20 |
-
1990
- 1990-11-20 JP JP2315533A patent/JP2509754B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04187314A (en) | 1992-07-06 |
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