JPS6338532A - Method for preventing meandering and heat buckle of steel strip - Google Patents
Method for preventing meandering and heat buckle of steel stripInfo
- Publication number
- JPS6338532A JPS6338532A JP18014286A JP18014286A JPS6338532A JP S6338532 A JPS6338532 A JP S6338532A JP 18014286 A JP18014286 A JP 18014286A JP 18014286 A JP18014286 A JP 18014286A JP S6338532 A JPS6338532 A JP S6338532A
- Authority
- JP
- Japan
- Prior art keywords
- roll
- temperature
- temp
- steel strip
- hearth roll
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000001816 cooling Methods 0.000 claims abstract description 12
- 238000000137 annealing Methods 0.000 claims abstract description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 5
- 229910052802 copper Inorganic materials 0.000 description 5
- 239000010949 copper Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/0014—Devices for monitoring temperature
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、鋼帯連続焼鈍炉の加熱帯に用いるハースロー
ルのセンタ一部とエツジ部の温度差を小さくすることに
より、銅帯の蛇行およびヒートバックルをともに防止す
る方法に関するものである。Detailed Description of the Invention (Industrial Field of Application) The present invention reduces the meandering of a copper strip by reducing the temperature difference between a center part and an edge part of a hearth roll used in a heating zone of a continuous steel strip annealing furnace. The present invention also relates to a method for preventing heat buckling.
（従来の技術）
鋼帯連続焼鈍炉の加熱帯に配置されている一般的なハー
スロールは、ロール全体がラジアントチューブからの輻
射熱を直接受けるようになっている。このハースロール
は、通常蛇行を防止するためにクラウンが付けであるが
、それをあまり大きくするとヒートバックルにつながる
おそれがあり、両者をともに抑制するには適当なロール
の温度管理が必要である。(Prior Art) A typical hearth roll placed in a heating zone of a continuous steel strip annealing furnace is designed so that the entire roll directly receives radiant heat from a radiant tube. This hearth roll usually has a crown to prevent meandering, but if the crown is made too large, it may lead to heat buckling, so proper temperature management of the roll is required to suppress both.
上述したように、ハースロール全体がラジアントチュー
ブから直接熱を受ける場合、炉内温度に近いハースロー
ルエツジ部と鋼帯とほぼ同じ温度となっているセンタ一
部とは、加熱前半部では２００〜４００℃の温度差があ
る。しかも、加熱帯人口側のハースロールの場合、予熱
帯を出たばかりの低温の鋼帯が当るので、センタ一部は
より低温となりエツジ部との温度差はより一層大きくな
る。このために、ハースロールのクラウンが変化して凹
クラウン傾向となり、銅帯の蛇行が発生していた。As mentioned above, when the entire hearth roll receives heat directly from the radiant tube, the edge of the hearth roll, which is close to the furnace temperature, and the center part, which is approximately the same temperature as the steel strip, have a temperature of 200 to There is a temperature difference of 400℃. Moreover, in the case of a hearth roll on the heated zone side, the cold steel strip that has just left the preheating zone hits the steel strip, so the center part becomes even colder and the temperature difference with the edge part becomes even larger. For this reason, the crown of the hearth roll changes and tends to have a concave crown, causing meandering of the copper strip.
その上、鋼帯の処理量が大きくなればなるほど、すなわ
ち炉の負荷が大きいほど炉温を高く設定する必要がある
一方で鋼帯の温度は前述のように上がりにくいので、両
者の温度差は一層激しくなり、ハースロールの凹クラウ
ンがいっそう大となって鋼帯の蛇行を頻発していた。Furthermore, the larger the steel strip throughput, that is, the greater the furnace load, the higher the furnace temperature needs to be set, but the temperature of the steel strip is difficult to rise as mentioned above, so the temperature difference between the two is It became more intense, the concave crown of the hearth roll became even larger, and the steel strip meandered frequently.
さらに、第３図に示すように鋼帯のラインスピードが上
昇したり、下がったりすると次のような問題も生じてい
た。すなわち、鋼帯のラインスピードが上昇すると、銅
帯が予熱帯や加熱帯の前半に滞留する時間が短くなるの
で鋼帯の温度が下がる。そのために、その鋼帯が当るハ
ースロールのセンタ一部の温度が下がり、一方でエツジ
部の温度すなわち炉温は応答性が遅いためその下降量は
小さくなる。したがってハースロールの凹クラウンが助
長され、鋼帯の蛇行が発生する。逆に、銅帯のラインス
ピードが下がると、銅帯が予熱帯や加熱帯の前半に滞留
する時間が長くなるために鋼帯の温度が上り、その鋼帯
が当るハースロールのセンタ一部の温度が上って凸クラ
ウンになる。そのために、ヒートバックルを生じるとい
う問題点があった。Furthermore, as shown in FIG. 3, when the line speed of the steel strip increases or decreases, the following problems occur. That is, when the line speed of the steel strip increases, the time that the copper strip stays in the preheating zone or the first half of the heating zone becomes shorter, so the temperature of the steel strip decreases. Therefore, the temperature of a part of the center of the hearth roll that the steel strip comes into contact with decreases, while the temperature of the edge portion, that is, the furnace temperature, has a slow response, so the amount of decrease is small. Therefore, the concave crown of the hearth roll is promoted, and meandering of the steel strip occurs. Conversely, when the line speed of the copper strip decreases, the time the copper strip stays in the preheating zone or the first half of the heating zone increases, causing the temperature of the steel strip to rise, causing the part of the center of the hearth roll that the steel strip comes into contact with to heat up. The temperature rises and the crown becomes convex. Therefore, there was a problem in that heat buckling occurred.
これに対して従来、特開昭５３〜１１９２０８号公報、
特開昭５３−１３０２１０号公報あるいは特開昭５３−
１３０２１１号公報などでは、ハースロールのエツジ部
とセンタ一部の温度差を無くす手段として、隔壁や熱遮
蔽板を設けてエツジ部の温度上昇を抑える方法を提案し
ている。On the other hand, conventionally, Japanese Patent Application Laid-Open No. 119208,
JP-A-53-130210 or JP-A-53-
Publication No. 130211 and the like propose a method of suppressing the temperature rise at the edge portion by providing a partition wall or a heat shield plate as a means for eliminating the temperature difference between the edge portion and a portion of the center of the hearth roll.
（発明が解決しようとする問題点）
しかしながら、上記従来技術の場合も（ハースロールの
ニジ部にラジアントチューブからの熱があたらないよう
に熱遮蔽板を設けても）、たしかに、ハースロールのセ
ンタ一部とエツジ部の’／？ｎ 度差は小さくなるもの
の、それでも第３図に示すところから明らかなように、
１００〜２００℃程度の温度差が生じ、前述した鋼帯の
蛇行及びヒートバ・ノクルを十分には防止できなかった
。(Problem to be Solved by the Invention) However, even in the case of the above-mentioned prior art (even if a heat shield plate is provided to prevent the heat from the radiant tube from reaching the nib of the hearth roll), it is true that the center of the hearth roll Part and Edge part'/? Although the n-degree difference becomes smaller, as shown in Figure 3,
A temperature difference of about 100 to 200°C occurred, and the above-mentioned meandering of the steel strip and heat bath nockle could not be sufficiently prevented.
本発明の目的は、連続焼鈍炉の加熱帯に用いられるハー
スロールのセンタ一部とエツジ部との温度差を小さくし
て、鋼帯の蛇行やヒートバックルを解消するための有利
な方法を提案することにある。The purpose of the present invention is to propose an advantageous method for reducing the temperature difference between the center part and the edge part of a hearth roll used in the heating zone of a continuous annealing furnace to eliminate meandering and heat buckling of the steel strip. It's about doing.
（問題点を解決するための手段）
上掲の目的に対し本発明は、第１図に示すように、鋼帯
連続焼鈍炉加熱帯のハースロール配置部分を、隔壁また
は熱遮蔽板で他の個所、即ちラジアントチューブ側と区
画分離した設備により鋼帯の蛇行およびヒートバックル
を防止するに当り、ハースロールエツジ部の温度が該ロ
ールセンター部の温度に近づくように区画域内雰囲気の
温度側を行うこと、即ちガスジェットなどの冷却装置も
しくは時には加熱装置を用いて該ハースロールエツジ部
の温度を制御することに着目した。特に、本発明はその
際に該ハースロールの長平方向の各部、例えばエツジ部
に熱電対などの温度センサーを装着し、該ロールエツジ
部の温度を連続的に測定し、その測定値にもとづき該ロ
ールエツジ部の温度がロールセンター部の温度に近づく
ように冷却もしくは加熱する制御を行うことを特徴とす
る鋼帯の蛇行およびヒートパ・ノクルの防止方法を提案
する。(Means for Solving the Problems) To achieve the above-mentioned object, the present invention, as shown in FIG. In order to prevent meandering and heat buckling of the steel strip using separate equipment from the radiant tube side, the temperature side of the atmosphere within the zone is adjusted so that the temperature of the hearth roll edge approaches the temperature of the roll center. In other words, we focused on controlling the temperature of the hearth roll edge using a cooling device such as a gas jet or sometimes a heating device. In particular, the present invention provides a temperature sensor such as a thermocouple attached to each part in the longitudinal direction of the hearth roll, for example, the edge part, to continuously measure the temperature of the roll edge part, and based on the measured value, We propose a method for preventing meandering and heat pack nockles in a steel strip, which is characterized by performing cooling or heating control so that the temperature of the roll center portion approaches the temperature of the roll center portion.
なお、区画域内の温度を制御する方法としては雰囲気ガ
スを送る冷却装置および／または予め温度調整をした雰
囲気ガスを用いてもよい。Note that as a method of controlling the temperature within the compartment, a cooling device that sends an atmospheric gas and/or an atmospheric gas whose temperature is adjusted in advance may be used.
（作 用）
上記解決手段に示したように本発明は、連続焼却炉加熱
帯のハースロールを隔壁または熱遮蔽板で区画し、例え
ば該ハースロールエツジ部の温度を熱電対などの温度セ
ンサーで連続測定しながら、主として雰囲気ガスを送る
冷却１ａｆｆあるいは予め温度調整した雰囲気ガスを用
い、ハースロールのセンタ一部のエツジ部との温度差が
±３０℃以内になるように、ハースロールエツジ部の温
度を制御する。(Function) As shown in the above solution, the present invention divides the hearth rolls in the heating zone of a continuous incinerator with partition walls or heat shielding plates, and measures the temperature at the edge of the hearth rolls using a temperature sensor such as a thermocouple. During continuous measurement, the edge of the hearth roll is heated so that the temperature difference between the edge of the hearth roll and the center of the hearth roll is within ±30°C using cooling 1aff, which mainly sends atmospheric gas, or atmospheric gas whose temperature has been adjusted in advance. Control temperature.
このようにハースロールエツジ部の温度を制御すると、
ハースロールのセンタ一部とエツジ部の温度差がなくな
り、ハースロールの操業条件変更に伴うサーマルクラウ
ンの変化、大きな凹クラウン及び凸クラウンが発生せず
、はぼイニシャルクラウンそのままが維持され、鋼帯の
蛇行やヒートバックルが発生しなくなるのである。By controlling the temperature of the hearth roll edge in this way,
The temperature difference between the center part and the edge part of the hearth roll is eliminated, changes in the thermal crown due to changes in the operating conditions of the hearth roll, large concave crowns and convex crowns do not occur, and the initial crown is maintained as it is. This eliminates the occurrence of meandering and heat buckling.
上記隔壁または鋼帯の通り抜けるスリットを設けた熱遮
蔽板は、それぞれロールへ最大の加熱源である輻射熱を
遮蔽してロールエツジ冷却装置の負担を軽くする作用が
ある。The partition wall or the heat shielding plate provided with slits through which the steel strip passes through has the effect of shielding the roll from radiant heat, which is the largest heating source, and lightening the load on the roll edge cooling device.
雰囲気ガスを送る冷却装置あるいは予め温度調整した雰
囲気ガスは、該ハースロールエツジ部の温度を、ハース
ロールのセンタ一部とエツジ部との温度誤差が±３０℃
以内になるようにハースロールエツジ部の温度を下げる
作用を有する。The cooling device that sends the atmospheric gas or the atmospheric gas whose temperature is adjusted in advance keeps the temperature of the hearth roll edge part within ±30°C of the temperature difference between the center part of the hearth roll and the edge part.
It has the effect of lowering the temperature of the hearth roll edge so that it is within
上述した説明では冷却装置を使用したが、鋼帯（ストリ
ップ）破断等の操業のトラブルでラインが停止したり、
室内の炉温か過冷却された場合あるいは次コイルが例え
ば現コイルよりも板厚が薄くかつ現コイルよりも高温で
ロールに接触することが想定される場合にあらかじめ炉
温を上げようとするときには、加熱装置ヒーター等で温
度を上げたガスを使用してもよい。Although a cooling device was used in the above explanation, the line may stop due to operational problems such as steel strip breakage,
When trying to raise the furnace temperature in advance if the indoor furnace temperature is overcooled or if the next coil is thinner than the current coil and is expected to contact the roll at a higher temperature than the current coil, Gas heated to a higher temperature by a heater or the like may be used.
ロールに取付けた熱電対などの温度センサーは、上記温
度差解消のためのフィードバック制御を行うためのもの
である。このロール自体へのセンサーの設置は、ハース
ロールへの伝熱態様が、各種熱源からの直接的、あるい
は間接的な輻射によって複雑化していることを考えると
、通常の方法ではハースロールエツジ部の温度を正確に
推定することが難しいことに着目して採用したものであ
る。A temperature sensor such as a thermocouple attached to the roll is used to perform feedback control to eliminate the temperature difference. Considering that the heat transfer to the hearth roll is complicated by direct or indirect radiation from various heat sources, it is difficult to install the sensor on the hearth roll edge using the normal method. This method was adopted based on the fact that it is difficult to accurately estimate temperature.
このセンサーを持たない場合、特に過冷却になった場合
にヒートバックル等の重大なトラブルの原因となる。If you do not have this sensor, it will cause serious troubles such as heat buckling, especially if it becomes overcooled.
なお、ロールセンター部の温度センサーについては、熱
電対をロール内に埋設して測定する他、次式の微分方程
式を数値演算で解くことによって省略してもよい。ただ
し、この式は炉内での板温の上昇モデルである。Note that the temperature sensor at the roll center portion may be omitted by embedding a thermocouple in the roll to measure it, or by solving the following differential equation by numerical calculation. However, this formula is a model for the increase in plate temperature in the furnace.
ｄｔ ρｄｃ
（１１の微分方程式を、初期値Ｔ□（予熱帯出口温度）
で解き、該ロール位置到達時刻ｔ７でのＴｃの値をロー
ルセンター部の温度として利用する。dt ρdc (11 differential equations, initial value T□ (preparation zone outlet temperature)
The value of Tc at the roll position arrival time t7 is used as the temperature of the roll center portion.
（実施例）
本発明方法を実施するための装置を第１図に示す。この
装置は、加熱帯２のハースロール３を２本づつ収納し鋼
帯ｌの通過するスリットを設けた熱遮蔽板７で区画した
室（Ｉｌｈｌ〜患３０−ルチャンバ２ａ、 ２ｂ、 ２
ｃ）に、温度を下げた雰囲気ガスを用いる冷却装置４お
よび炉温針６を設け、該ハースロール３にはそのエツジ
部と中心部の温度を測定するための温度センサーとして
熱電対５を埋設してなるものである。(Example) An apparatus for carrying out the method of the present invention is shown in FIG. This device accommodates two hearth rolls 3 of a heating zone 2 and has chambers 2a, 2b, 2 separated by a heat shielding plate 7 provided with a slit through which the steel strip 1 passes.
c) is provided with a cooling device 4 that uses atmospheric gas at a lower temperature and a furnace temperature needle 6, and a thermocouple 5 is embedded in the hearth roll 3 as a temperature sensor for measuring the temperature at the edge and center. This is what happens.
上記装置を使い、熱電対５でハースロール３のセンタ一
部の温度とエツジ部の温度を連続的に計測し、該ハース
ロール３のエツジ部の温度がセンタ一部の温度よりも上
昇した場合冷却装置４を作動させて、両エツジ部に温度
を下げた雰囲気ガスを吹きつけてハースロール３のセン
タ一部とエツジ部との温度差が±３０℃以内になるよう
にロールエツジ部の温度を制御した。Using the above device, the temperature of the center part and the edge part of the hearth roll 3 are continuously measured with the thermocouple 5, and if the temperature of the edge part of the hearth roll 3 rises higher than the temperature of the center part. The cooling device 4 is activated to blow a lowered temperature atmospheric gas onto both edge portions, and the temperature of the roll edge portion is adjusted so that the temperature difference between the center portion of the hearth roll 3 and the edge portion is within ±30°C. controlled.
第２図は、この実施例の下における＃４ハースロールエ
ツジ部温度と＃４ハースロールセンター部温度との温度
推移を示したものであるが、第３図に示す従来例と比較
すると明らかなように、両者の温度差が著しく小さくな
っている。これはラインスピードが変ったような場合に
も、温度センサーが有効に機能した結果であり、過冷却
によるヒートバックルの発生もなく、また蛇行もなかっ
た。Figure 2 shows the temperature changes between the #4 hearth roll edge temperature and the #4 hearth roll center temperature under this example, which is clear when compared with the conventional example shown in Figure 3. As shown, the temperature difference between the two is extremely small. This is because the temperature sensor functioned effectively even when the line speed changed, and there was no heat buckling due to overcooling and no meandering.
（発明の効果）
以上説明したように本発明によれば、ハースロールのサ
ーマルクラウンによる影響を最小限に抑えることができ
、その結果として鋼帯の蛇行やヒ−トバックルの発生も
なく、設備の稼動率ならびに生産の歩留りを向上させる
ことができる。(Effects of the Invention) As explained above, according to the present invention, the influence of the thermal crown of the hearth roll can be minimized, and as a result, there is no meandering or heat buckling of the steel strip, and the equipment The operating rate and production yield can be improved.
第１図ｆａｔ、 ｆｂ）、 （Ｃ１は、いずれも本発明
を実施するために使用する装置の一部を示した路線図、
第２図は、本発明の方法を実施した場合の板温、炉温、
ハースロール各部の温度分布およびラインスピードにつ
いて示したグラフ、
第３図は、従来の方決を実施した場合の加熱帯前半部の
各種温度分布ならびにラインスピードを示したグラフで
ある。
１・・・鋼帯 ２・・・加熱帯３・・・ハ
ースロール ４・・・冷却装置５・・・熱転対（温
度センサー）
６・・・炉温針 ７・・・熱遮蔽板（隔壁）
６％Ｅ
甥、￥Ｆ べ、Ｊ−１２
−心Ｘへ トFigures 1 (fat, fb), (C1 is a route map showing part of the equipment used to carry out the present invention,
Figure 2 shows the plate temperature, furnace temperature, and
Graph showing the temperature distribution and line speed of each part of the hearth roll. FIG. 3 is a graph showing various temperature distributions and line speed in the first half of the heating zone when the conventional method is implemented. 1... Steel strip 2... Heating zone 3... Hearth roll 4... Cooling device 5... Heat transfer pair (temperature sensor) 6... Furnace temperature needle 7... Heat shield plate ( bulkhead)
6%E Nephew, ￥F Be, J-12 -To the heart
Claims (1)
隔壁または熱遮蔽板でラジアントチューブ側空間と区画
分離し、該ハースロールのロールエッジ部とロールセン
ター部間の温度差を無くすように、区画室内の温度を制
御することにより、鋼帯の蛇行およびヒートバックルを
防止するに当り、該ハースロール長手方向の各部に温度
センサーを装着して該ロール各部の温度を連続的に測定
し、その測定値をもとに該ロールエッジ部の温度がロー
ルセンター部の温度に近づくように、該エッジ部を冷却
もしくは加熱することを特徴とする鋼帯の蛇行およびヒ
ートバックルの防止方法。1. The hearth roll arrangement part of the steel strip continuous annealing furnace heating zone,
By separating the space from the radiant tube side space with a partition wall or a heat shield plate, and controlling the temperature inside the compartment so as to eliminate the temperature difference between the roll edge part and the roll center part of the hearth roll, meandering of the steel strip and To prevent heat buckling, a temperature sensor is attached to each part of the hearth roll in the longitudinal direction to continuously measure the temperature of each part of the roll, and based on the measured values, the temperature of the roll edge part is determined to be the center of the roll. A method for preventing meandering and heat buckling of a steel strip, characterized by cooling or heating the edge portion so that the temperature approaches the temperature of the edge portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18014286A JPS6338532A (en) | 1986-08-01 | 1986-08-01 | Method for preventing meandering and heat buckle of steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18014286A JPS6338532A (en) | 1986-08-01 | 1986-08-01 | Method for preventing meandering and heat buckle of steel strip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6338532A true JPS6338532A (en) | 1988-02-19 |
Family
ID=16078140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18014286A Pending JPS6338532A (en) | 1986-08-01 | 1986-08-01 | Method for preventing meandering and heat buckle of steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6338532A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0254722A (en) * | 1988-08-17 | 1990-02-23 | Kawasaki Steel Corp | Continuous heat treatment furnace for strip |
| JPH02282431A (en) * | 1989-04-24 | 1990-11-20 | Kawasaki Steel Corp | Continuous heat-treating furnace with thermal deformation of supporting roll prevented |
| JPH0320417A (en) * | 1989-06-16 | 1991-01-29 | Kawasaki Steel Corp | Method for continuously annealing steel strip |
| JPH0394026A (en) * | 1989-09-07 | 1991-04-18 | Kawasaki Steel Corp | Cooling zone in steel strip continuous annealing furnace |
| FR2660935A1 (en) * | 1990-04-11 | 1991-10-18 | Selas Sa | Process for the treatment of sheet metal and treatment oven applying this process |
| JPH04202716A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
| JPH04202718A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
| JPH04202717A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
| JPH0741869A (en) * | 1993-07-26 | 1995-02-10 | Sumitomo Metal Ind Ltd | Method for restraining meandering of steel strip |
| KR100518337B1 (en) * | 2003-08-14 | 2005-10-04 | 주식회사 포스코 | An apparatus for cooling rollers in heating zone of continuous annealing furnace |
| KR100953073B1 (en) * | 2002-11-26 | 2010-04-13 | 주식회사 포스코 | Apparatus for preventing heat deformation of strip in continuous heat treatment furnace |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137431A (en) * | 1981-02-19 | 1982-08-25 | Nippon Kokan Kk <Nkk> | Crown controller of hearth roll for continuous annealing furnace |
-
1986
- 1986-08-01 JP JP18014286A patent/JPS6338532A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57137431A (en) * | 1981-02-19 | 1982-08-25 | Nippon Kokan Kk <Nkk> | Crown controller of hearth roll for continuous annealing furnace |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0254722A (en) * | 1988-08-17 | 1990-02-23 | Kawasaki Steel Corp | Continuous heat treatment furnace for strip |
| JPH02282431A (en) * | 1989-04-24 | 1990-11-20 | Kawasaki Steel Corp | Continuous heat-treating furnace with thermal deformation of supporting roll prevented |
| JPH0320417A (en) * | 1989-06-16 | 1991-01-29 | Kawasaki Steel Corp | Method for continuously annealing steel strip |
| JPH0394026A (en) * | 1989-09-07 | 1991-04-18 | Kawasaki Steel Corp | Cooling zone in steel strip continuous annealing furnace |
| FR2660935A1 (en) * | 1990-04-11 | 1991-10-18 | Selas Sa | Process for the treatment of sheet metal and treatment oven applying this process |
| JPH04202716A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
| JPH04202718A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
| JPH04202717A (en) * | 1990-11-30 | 1992-07-23 | Kobe Steel Ltd | Device for controlling crown of hearth roll in continuous heat treatment furnace |
| JPH0741869A (en) * | 1993-07-26 | 1995-02-10 | Sumitomo Metal Ind Ltd | Method for restraining meandering of steel strip |
| KR100953073B1 (en) * | 2002-11-26 | 2010-04-13 | 주식회사 포스코 | Apparatus for preventing heat deformation of strip in continuous heat treatment furnace |
| KR100518337B1 (en) * | 2003-08-14 | 2005-10-04 | 주식회사 포스코 | An apparatus for cooling rollers in heating zone of continuous annealing furnace |
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