JPS6144924B2 - - Google Patents
Info
- Publication number
- JPS6144924B2 JPS6144924B2 JP16281479A JP16281479A JPS6144924B2 JP S6144924 B2 JPS6144924 B2 JP S6144924B2 JP 16281479 A JP16281479 A JP 16281479A JP 16281479 A JP16281479 A JP 16281479A JP S6144924 B2 JPS6144924 B2 JP S6144924B2
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- roll
- hearth
- width
- rolls
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 52
- 239000010959 steel Substances 0.000 claims description 52
- 238000000034 method Methods 0.000 claims description 10
- 238000004804 winding Methods 0.000 claims description 3
- 238000000137 annealing Methods 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 5
- 238000002791 soaking Methods 0.000 description 3
- 238000005097 cold rolling Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
【発明の詳細な説明】
この発明は、鋼帯の連続送り装置における横づ
れ防止方法に関するもので、主として竪型連続焼
鈍炉において、その炉内ハースロールに蛇行状に
巻掛けして搬送する鋼帯の、その横づれ搬送を防
ぐ方法について提案する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for preventing sideways slipping in a continuous feeding device for steel strip, and mainly relates to a method for preventing sideways slippage in a continuous feeding device for steel strip, and mainly relates to a method for preventing sideways slippage in a continuous feeding device for steel strip. This paper proposes a method to prevent belts from being transported sideways.
一般に、竪型連続焼純炉の鋼帯の連続送りは、
炉内の上下部に列設した多数のハースロール間
に、鋼帯を蛇行状に巻掛けした態勢の下で行つて
いる。その連続焼鈍炉を通板する鋼帯は、冷間圧
延後のものが供されており、圧延後鋼帯形状の如
何によつては、通板中に横づれ（蛇行）を起すこ
とがある。例えば、鋼帯形状によつて搬送鋼帯が
横づれを起す場合としては、鋼帯の幅方向の中心
部における中伸びと、鋼帯エツヂの一方が伸びた
片伸びをしている場合とである。普通、冷間圧延
に際しては、形状不良を出さないように操業して
いるが、上述したような中伸び等鋼帯長手方向の
形状変化は制御できない。従つて部分的には横づ
れの原因となる上述のような悪い形状が常に出て
いる。 Generally, the continuous feeding of steel strip in a vertical continuous annealing furnace is
This is done by winding a steel strip in a meandering manner between a large number of hearth rolls arranged in rows at the top and bottom of the furnace. The steel strip passed through the continuous annealing furnace is provided after cold rolling, and depending on the shape of the steel strip after rolling, sideways slipping (meandering) may occur during passing. . For example, cases in which a conveyed steel strip shifts sideways due to the shape of the steel strip include medium elongation at the center in the width direction of the steel strip, and one case where one edge of the steel strip is elongated. be. Normally, cold rolling is carried out to avoid shape defects, but changes in shape in the longitudinal direction of the steel strip, such as the above-mentioned medium elongation, cannot be controlled. Therefore, the above-mentioned bad shapes that cause lateral slippage always occur in some parts.
こうしたことから、従来連続焼鈍炉の操業で、
鋼帯の横づれを防止するべく種々努力しており、
そのための方法として炉内の鋼帯張力と、昇熱及
び冷却を適正化することを主として行つている。
しかし、これらの従来技術では鋼帯の形状変化に
追従できず、平均的な形状に対して適正化してい
るのみである。また、鋼帯の横づれを小さくする
もう一つの従来技術としては、ハースロールの形
状である。そのためになしたハースロールの形状
とは、ロールクラウンと呼ばれる中央部に中高の
凸部を形成してなり、このロールクラウンの付与
により、鋼帯はセルフセンタリング効果をもつこ
とになる結果、自動的に横づれを自己修正しなが
ら送られることになるのである。しかしながら、
この場合、ハースロールのクラウン量が固定され
ているために、鋼帯幅が変動したときに、セルフ
センタリング力が正しく作用しないことになり、
横づれ量を許容値以下にすることができないとい
つた欠点がある。 For these reasons, in the operation of conventional continuous annealing furnaces,
We are making various efforts to prevent the steel strip from sliding sideways.
The main method for this purpose is to optimize the tension of the steel strip in the furnace and the heating and cooling.
However, these conventional techniques cannot follow changes in the shape of the steel strip, and only optimize the shape for an average shape. Another conventional technique for reducing the lateral deviation of the steel strip is the shape of a hearth roll. For this purpose, the shape of the hearth roll is formed by forming a medium-high convex part in the center called the roll crown.By providing this roll crown, the steel strip has a self-centering effect, and as a result, it automatically It will be sent while self-correcting for sideways deviations. however,
In this case, since the crown amount of the hearth roll is fixed, the self-centering force will not work correctly when the steel strip width changes.
The drawback is that it is not possible to reduce the amount of lateral deviation below a permissible value.
そこで、従来は上述の横づれ防止技術に加え
て、それを防止するために更に、通板速度を低下
せしめ、処理能力を減少させるという操業を実施
している。要するに、このようにも横づれ防止に
敏感なのは、連続焼鈍炉内で起きた鋼帯の横づれ
を無視してそのまま操業を続けると、鋼帯エツヂ
がハースロール端を外れて炉壁と接触し、炉壁に
よつて鋼帯エツヂが損傷し、鋼帯破断が起る。ま
た、横づれ走行により鋼帯幅方向に不均一応力が
かかつて、鋼帯長手方向にバツクリングが入るト
ラブルを発生することになるからである。 Therefore, conventionally, in addition to the above-mentioned lateral slippage prevention technology, operations have been carried out to further reduce the sheet passing speed and reduce the throughput capacity in order to prevent this. In short, the reason why the steel strip is sensitive to slippage prevention is that if the steel strip slippage that occurs in the continuous annealing furnace is ignored and the operation continues, the steel strip edge will come off the hearth roll end and come into contact with the furnace wall. , the edge of the steel strip is damaged by the furnace wall, causing the steel strip to break. In addition, uneven stress is generated in the width direction of the steel strip due to the sideways running, which causes problems such as buckling in the longitudinal direction of the steel strip.
そこで、この発明は、通板速度を下げるまでも
なく、鋼帯の横づれを常に自動的に修正しなが
ら、連続送りするため方法を提案する。その構成
の要旨とするところは、互い違いに並べたガイド
ロール間を連続して送る鋼帯送りに際し、ロール
クラウンをもつ２本のガイドロールを並列に並
べ、かつそれらを各々軸方向に移動し得るように
支持し、それらガイドロールの少なくとも一方を
移動させることにより、鋼帯の巻きつき位置を変
化させ、これによつて通過鋼帯のセルフセンタリ
ング力を、変化させるという点にある。以下にそ
の構成の詳細を説明する。 Therefore, the present invention proposes a method for continuously feeding the steel strip while automatically correcting the lateral deviation of the steel strip without reducing the threading speed. The gist of its configuration is that when continuously feeding a steel strip between alternately arranged guide rolls, two guide rolls with roll crowns are arranged in parallel, and each of them can be moved in the axial direction. By supporting the steel strip in this way and moving at least one of the guide rolls, the winding position of the steel strip can be changed, thereby changing the self-centering force of the passing steel strip. The details of the configuration will be explained below.
冷間圧延された鋼帯は、第１図に示す連続焼鈍
炉において加熱帯１で昇熱され、均熱帯２で均熱
温度に保持され、第１冷却帯３、第２冷却帯４で
冷却され熱処理を終了する。鋼帯Ｓは連続焼鈍炉
内のどのセクシヨンでも横づれを起すが、ハース
ロール５端を外れるように大きい鋼帯の横づれは
鋼帯形状の影響を受ける加熱帯１で多く見られ
る。 The cold rolled steel strip is heated in a heating zone 1 in a continuous annealing furnace shown in FIG. 1, maintained at a soaking temperature in a soaking zone 2, and cooled in a first cooling zone 3 and a second cooling zone 4. The heat treatment is then completed. Although the steel strip S causes lateral shear in any section in the continuous annealing furnace, lateral shear of the steel strip that is large enough to come off the edge of the hearth roll 5 is often seen in the heating zone 1, which is affected by the shape of the steel strip.
加熱帯１の中でも、とくに温度変化が大きい長
手方向の中央部は、鋼帯の温度勾配が大きく横づ
れが助長されてトラブルが多い。そこで、以下
は、加熱帯１中央部で適用した本発明方法の実施
例について説明する。 In the heating zone 1, the central portion in the longitudinal direction where temperature changes are particularly large has a large temperature gradient in the steel strip, which promotes lateral slippage, which often causes trouble. Therefore, an example of the method of the present invention applied to the central portion of the heating zone 1 will be described below.
第２図は本発明を試験的に実施した連続焼鈍炉
の加熱帯内部の図で、鋼帯Ｓは搬送用ガイドロー
ルである普通のハースロール５を経て、横づれ防
止のために必要な機構を具える新規なハースロー
ル６，６′部を通過し、再びハースロール５を経
て、次のセクシヨンに送る状態を示す。第３図
は、本発明の実施に際し構成しなければならない
横づれ修正用ロール列の図で、ロールクラウンを
付したハースロール６，６′と、それらハースロ
ール６，６′を軸方向に往復移動させるためのシ
リンダ７，７′とで構成されている。ロールクラ
ウンを付したハースロール６，６′には、例えば
ロールフラツト部の幅がＷR、テーパ部が（d1―
d2）／２のテーパクラウンを付けたものでもよ
い。このようにハースロールにクラウンを付けた
のは、鋼帯Ｓをセルフセンタリングさせる機能を
もたせることにある。 Fig. 2 is a diagram of the inside of the heating zone of a continuous annealing furnace in which the present invention was experimentally implemented, in which the steel strip S passes through an ordinary hearth roll 5, which is a conveyance guide roll, and then passes through a mechanism necessary to prevent side slippage. It passes through new hearth rolls 6, 6' equipped with a hearth roll 5, passes through the hearth roll 5 again, and is sent to the next section. FIG. 3 is a diagram of a row of rolls for correcting side slippage that must be constructed when carrying out the present invention, and shows hearth rolls 6 and 6' with roll crowns, and the hearth rolls 6 and 6' reciprocating in the axial direction. It is composed of cylinders 7 and 7' for movement. The hearth rolls 6, 6' with roll crowns have, for example, a roll flat part with a width W R and a tapered part with a width of (d 1 -
A tapered crown of d 2 )/2 may also be used. The purpose of adding a crown to the hearth roll is to provide the steel strip S with a self-centering function.
この発明方法は、鋼帯幅ＷSに対応してそれに
よく適したハースロール１，１′フラツト部の幅
ＷRを得るのに、並行に並べた隣接する２本のハ
ースロール６，６′を、次のように動かすことに
よつて、横づれを修正するようにしたのである。
このことは、一般的に言つて、鋼帯幅が650〜
1100mmの範囲で変えるのに、ハースロール５のフ
ラツト部幅ＷRが常に一定では、変動する鋼帯幅
ＷSによつて搬送鋼帯のセルフセンタリング力が
大きく変動し、操業を不安定にするからである。 The method of the present invention uses two adjacent hearth rolls 6, 6' arranged in parallel to obtain a width W R of the flat portion of the hearth rolls 1, 1' that is well suited to the width W S of the steel strip. The lateral shift was corrected by moving the as shown below.
Generally speaking, this means that the steel strip width is 650~
If the flat part width W R of the hearth roll 5 is always constant even though it is changed within a range of 1100 mm, the self-centering force of the conveyed steel strip will fluctuate greatly due to the varying steel strip width W S , making the operation unstable. It is from.
以上のことから、この発明では、鋼帯幅ＷSに
応じて、前記クラウンつきハーフロール６，６′
の少なくとも一方を、軸方向にシリンダ７，７′
を介して動かし、２本１組のハースロール６，
６′によつて形成されるロール平面形状を変化さ
せるようにしたのである。すなわち、一本のハー
スロール６がもつフラツト部の幅ＷRに対応する
ものを、前記１組のハースロール６，６′の一方
を移動させることで、その移動幅Ｍの部分だけ、
２本のロールによつて形成されるフラツト部の合
計幅を大きくした（ＷR＋Ｍ）ものにし、銅帯Ｓ
幅に応じたセルフセンタリング力を付与して、横
づれを修正するようにしたのである。 From the above, in this invention, the crowned half rolls 6, 6 '
at least one of the cylinders 7, 7' in the axial direction.
move through the hearth roll 6,
The planar shape of the roll formed by 6' is changed. That is, by moving one of the pair of hearth rolls 6, 6' corresponding to the width W R of the flat portion of one hearth roll 6, only the portion corresponding to the movement width M,
The total width of the flat part formed by the two rolls is increased (W R +M), and the copper strip S
By applying a self-centering force according to the width, it was possible to correct lateral deviation.
第４図は、本発明実施例による操業結果で広範
囲に変動する板幅ＷSに対して、良好な操業が得
られる（ＷR＋Ｍ）の範囲があることを示してい
る。本実施例は、連続焼鈍炉の加熱帯中央部に、
上述した２本１組の横づれ防止用ガイドロール配
列を組み入れたが鋼帯の横づれを起す場所に応じ
て、この横づれ防止用ガイドロール配列を組み入
れればより効果的である。 FIG. 4 shows that there is a range (W R +M) in which good operation can be obtained for the plate width W S which varies over a wide range in the operation results according to the embodiment of the present invention. In this example, in the central part of the heating zone of the continuous annealing furnace,
Although the above-mentioned two-piece guide roll arrangement for preventing side slippage is incorporated, it would be more effective if this guide roll arrangement for preventing side slippage is incorporated depending on the location where side slippage of the steel strip occurs.
なお、上述の説明はいずれもテーパ付のハース
ロールについて説明したが、ナローボデイあるい
はクラウンのハースロールについても同様の効果
がある。 Incidentally, although the above explanations have all been made regarding tapered hearth rolls, similar effects can be obtained with narrow body or crown hearth rolls.
以上説明したようにこの発明によれば、鋼帯の
連続送りに際し、鋼帯が変動してもそれに見合つ
た所定のセンタリング力を与えることができるの
で、横づれならびにバツフリングを防ぐことがで
きる。したがつて、通板速度を落して処理能力を
低下させるようなことがなくなる。また、鋼帯エ
ツヂが損傷したり、破断したりすることがない。 As explained above, according to the present invention, even if the steel strip fluctuates during continuous feeding of the steel strip, a predetermined centering force commensurate with the fluctuation can be applied, thereby preventing side shifting and buffling. Therefore, there is no need to reduce the sheet passing speed and reduce the throughput. Further, the steel strip edge will not be damaged or broken.
図面の第１図は、連続焼鈍炉の鋼帯送りのもよ
うを示す略線図、第２図は本発明方法の実施に用
いるガイドロール配置の例を示す略線図、第３図
は横づれ修正のためのガイドロール配置の平面
図、第４図は鋼帯幅とローールフラツト部の幅
（ＷR＋Ｍ）との関係を示す特性図である。
１……加熱帯、２……均熱帯、３……第１冷却
帯、４……第２冷却帯、５……ハースロール（ガ
イドロール）、６……本発明例のハースロール
（ガイドロール）、７……シリンダー、Ｓ……鋼
帯。
Figure 1 of the drawings is a schematic diagram showing how the steel strip is fed in a continuous annealing furnace, Figure 2 is a schematic diagram showing an example of the arrangement of guide rolls used in carrying out the method of the present invention, and Figure 3 is a horizontal diagram. FIG. 4, which is a plan view of the arrangement of guide rolls for misalignment correction, is a characteristic diagram showing the relationship between the width of the steel strip and the width of the roll flat portion (W R +M). 1... Heating zone, 2... Soaking zone, 3... First cooling zone, 4... Second cooling zone, 5... Hearth roll (guide roll), 6... Hearth roll (guide roll) of the example of the present invention ), 7...Cylinder, S...Steel strip.
Claims (1)
送る鋼帯送りに際し、ロールクラウンをもつ２本
のガイドロールを並列に並べ、かつそれらを各々
軸方向に移動し得るように支持し、それらガイド
ロールの少なくとも一方を移動させることによ
り、鋼帯の巻きつき位置を変化させ、これによつ
て通過鋼帯のセルフセンタリング力を、変化させ
ることを特徴とする鋼帯の連続送り装置における
横づれ防止方法。1. When continuously feeding a steel strip between alternately arranged guide rolls, two guide rolls with roll crowns are arranged in parallel, each is supported so that it can move in the axial direction, and the guide rolls are A method for preventing lateral slippage in a continuous steel strip feeding device, characterized in that the winding position of the steel strip is changed by moving at least one of the two, thereby changing the self-centering force of the passing steel strip. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16281479A JPS5687633A (en) | 1979-12-17 | 1979-12-17 | Method of preventing lateral deviation in continuous feeder of steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16281479A JPS5687633A (en) | 1979-12-17 | 1979-12-17 | Method of preventing lateral deviation in continuous feeder of steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5687633A JPS5687633A (en) | 1981-07-16 |
| JPS6144924B2 true JPS6144924B2 (en) | 1986-10-06 |
Family
ID=15761724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16281479A Granted JPS5687633A (en) | 1979-12-17 | 1979-12-17 | Method of preventing lateral deviation in continuous feeder of steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5687633A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146694U (en) * | 1989-05-10 | 1990-12-12 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07102383B2 (en) * | 1990-09-27 | 1995-11-08 | 日本鋼管株式会社 | Roller in the looper |
| KR100953073B1 (en) * | 2002-11-26 | 2010-04-13 | 주식회사 포스코 | Furnace Strip Heat Deflection Prevention Device |
| KR101075918B1 (en) * | 2008-12-22 | 2011-10-26 | 주식회사 포스코 | Apparatus for moving the mineral roll of annealing furnace |
-
1979
- 1979-12-17 JP JP16281479A patent/JPS5687633A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02146694U (en) * | 1989-05-10 | 1990-12-12 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5687633A (en) | 1981-07-16 |
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