JPS6310004A - Continuous warm rolling equipment - Google Patents
Continuous warm rolling equipmentInfo
- Publication number
- JPS6310004A JPS6310004A JP15102386A JP15102386A JPS6310004A JP S6310004 A JPS6310004 A JP S6310004A JP 15102386 A JP15102386 A JP 15102386A JP 15102386 A JP15102386 A JP 15102386A JP S6310004 A JPS6310004 A JP S6310004A
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- strip
- rolling mill
- rolling
- heating device
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 65
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 230000002265 prevention Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims description 40
- 238000001816 cooling Methods 0.000 claims description 9
- 238000003303 reheating Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000007789 gas Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005554 pickling Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
この発明は、鋼帯の圧延に際して特に板厚の変動を少な
くできる連続温間圧延膜θｊｒＩに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a continuous warm-rolled film θjrI that can particularly reduce variation in plate thickness during rolling of a steel strip.
一般に、一般冷延鋼帯は酸洗済みの熱延鋼帯を圧延して
製造される。また、ステンレス鋼帯の場合には熱間圧延
後、焼鈍及び酸洗工程を経て冷間圧延される。Generally, a general cold-rolled steel strip is manufactured by rolling a pickled hot-rolled steel strip. Further, in the case of a stainless steel strip, after hot rolling, it is cold rolled through an annealing and pickling process.
冷間圧延は、普通鋼の場合、通常タンデム圧延機で行わ
れており、変形抵抗の高いステンレス鋼の場合にはゼン
ジミア圧延機のような高圧下圧延機で行われているが、
最近では生産量向上の見地からステンレス鋼もタンデム
圧延機による圧延が志向されるようになってきている。Cold rolling is usually carried out in a tandem rolling mill for ordinary steel, and in the case of stainless steel with high deformation resistance, it is carried out in a high-reduction rolling mill such as a Sendzimir rolling mill.
Recently, from the standpoint of increasing production, rolling of stainless steel using tandem rolling mills has become popular.
ところで、高圧下圧延を行う程、生産量は向上しまた製
造コストも低減するが、その反面、タンデム圧延機の後
段スタンドになるに従い鋼板の加工硬化が大きくなって
圧延負荷が著しく増大する。By the way, the higher the reduction rolling, the higher the production and the lower the manufacturing cost, but on the other hand, as the stand becomes the later stage of the tandem rolling mill, the work hardening of the steel plate increases and the rolling load increases significantly.
さらには、鋼板破断の発生頻度も大きくなって操業上好
ましくない状態が生じる。Furthermore, the frequency of occurrence of steel plate breakage increases, resulting in an unfavorable operational situation.
また、タンデム圧延機の入側に溶接機を設置し、連続し
て冷間圧延を行う完全連続式タンデム圧延機の場合にお
いて上記のような鋼板破断が発生すると、操業上さらに
大きな問題となる。Further, in the case of a fully continuous tandem rolling mill in which a welding machine is installed on the entry side of the tandem rolling mill and cold rolling is performed continuously, if the above-mentioned steel plate breakage occurs, it will cause an even bigger problem in terms of operation.
このような問題点を解決するものとして例えば特開昭５
３−１１８２５９号公報に開示された設備がある。これ
はタンデム圧延機の入側にゼンジミアミル、プラネタリ
ミル、ペンデュラムミルなどの高圧下可能な圧延機を配
設し、さらにこの高圧下可能な圧延機とタンデム圧延機
との間に、ストリップを２００ ’Ｃ以上の温度に加熱
し再結晶を生じない時間その温度を維持する加熱装置を
設けたものであって、第１段の高圧下圧延機による圧延
によって加工硬化したストリップを加熱して変形抵抗を
低下した後、第２段のタンデム圧延機により圧延する。For example, Japanese Patent Application Laid-open No. 5
There is a facility disclosed in Japanese Patent No. 3-118259. This involves installing a rolling mill capable of high reduction, such as a Sendzimir mill, planetary mill, or pendulum mill, on the entry side of the tandem rolling mill, and further rolling the strip 200' between the rolling mill capable of high reduction and the tandem rolling mill. The strip is equipped with a heating device that heats the strip to a temperature of C or higher and maintains the temperature for a period of time that does not cause recrystallization, and heats the work-hardened strip by rolling with the first-stage high-reduction rolling mill to increase deformation resistance. After lowering, it is rolled by a second stage tandem rolling mill.
しかしながら、前記特開昭５３−１１８２５９号公報に
開示された圧延設備にあっては、ストリップが２００℃
以上の温度に加熱されるため、大気中の酸素により酸化
されてテンパーカラーが発生し、表面品質上好ましくな
いという問題がある。However, in the rolling equipment disclosed in JP-A-53-118259, the strip is heated at 200°C.
Since it is heated to a temperature above, it is oxidized by oxygen in the atmosphere and a temper color is generated, which is undesirable in terms of surface quality.
また、加熱装置とタンデム圧延機との間の距離は小さい
程その間の鋼板の温度降下が小さく、加工上、好都合と
なるが、一方、鋼帯の蛇行の防止が困難となる。鋼板の
蛇行は圧延中に鋼板が破断したり、鋼板の圧延形状が悪
くなったりする原因となるので、一般にはタンデム圧延
機の入側直近にステアリング装置を設けて鋼板の蛇行を
修正する方法が採られている。その理由は、加熱装置が
小さければステアリング装置、加熱装置、タンデム圧延
機の順に配置可能であるが、高速ラインにおいては鋼板
の通過速さが大きくなるため加熱装置が大型化し、ステ
アリング装置で蛇行を修正しても加熱装置を通過して圧
延機に至るまでに再び蛇行が生じるからである。Further, the smaller the distance between the heating device and the tandem rolling mill, the smaller the temperature drop of the steel sheet between them, which is convenient for processing, but on the other hand, it becomes difficult to prevent the steel strip from meandering. Meandering of the steel plate can cause the steel plate to break during rolling or cause the rolled shape of the steel plate to deteriorate, so generally a steering device is installed close to the entrance of the tandem rolling mill to correct the meandering of the steel plate. It is taken. The reason for this is that if the heating device is small, the steering device, heating device, and tandem rolling mill can be arranged in that order, but in high-speed lines, the passing speed of the steel plate increases, so the heating device becomes larger, and the steering device prevents meandering. This is because even if it is corrected, meandering will occur again after passing through the heating device and reaching the rolling mill.
ところが、上記一般例のように、タンデム圧延機の入側
にステアリング装置を設置すると、加熱装置からタンデ
ム圧延機までの鋼帯のパス長さが大きくなる。このよう
な圧延設備を第４図に示す。However, if the steering device is installed on the entry side of the tandem rolling mill as in the above general example, the path length of the steel strip from the heating device to the tandem rolling mill increases. Such rolling equipment is shown in FIG.
図において３は巻戻機から繰り出される鋼帯Ｓを接続す
るための溶接機、４は鋼帯Ｓを貯留するルーパー、５は
加熱装置、６は蛇行防止装置であるステアリング装置、
８はタンデム圧延機である。In the figure, 3 is a welding machine for connecting the steel strip S fed out from the unwinding machine, 4 is a looper for storing the steel strip S, 5 is a heating device, 6 is a steering device which is a meandering prevention device,
8 is a tandem rolling mill.
この設備において、加熱装置５とタンデム圧延機８との
間の鋼帯Ｓのパス長さは、少なくとも１５〜２０ｍ程度
になる。In this equipment, the path length of the steel strip S between the heating device 5 and the tandem rolling mill 8 is at least about 15 to 20 m.
また、完全連続式タンデム圧延機においては、第５図に
示すように、鋼帯の通板速度を（イ）加速、（ロ）高速
、（ハ）減速、（ニ）低速のようなパターンを繰返す運
転を行うのが一般的である。In addition, in a fully continuous tandem rolling mill, as shown in Figure 5, the steel strip threading speed can be set in the following patterns: (a) acceleration, (b) high speed, (c) deceleration, and (d) low speed. It is common to perform repeated operations.
これは、ルーパー４の容量の大小又はその有無にもよる
が、入側での鋼帯の溶接工程や出側での鋼帯のせん断工
程により、一時、入側設備の停止や出側設備を低速運転
させる時間を要するためである。さらに鋼帯の溶接部を
圧延する際は破断し易いので、その圧延速度を落とす必
要もある。従って、加熱装置５とタンデム圧延ｊａＢ間
における鋼帯の通過時間は上記圧延速度のパターンによ
っても変化することから、この間の鋼帯の温度降下量も
変化することになる。従って、圧延時の変形抵抗も変動
することにより、圧延後の鋼帯の板厚も変動するといっ
た問題点があった。（なおタンデム圧延機での圧下スケ
ジュールは鋼帯の変形抵抗は一定と見做して設定するの
が一般的である。）この発明は、このような従来の問題
点にかんがみてなされたものであって、圧延機の入側直
近に第２の加熱装置を設ける等により、上記問題点を解
決することを目的としている。This depends on the capacity of the looper 4 or its presence or absence, but due to the welding process of the steel strip on the input side and the shearing process of the steel strip on the output side, the input side equipment may be temporarily stopped or the output side equipment may be temporarily stopped. This is because it takes time to operate at low speed. Furthermore, when rolling the welded part of the steel strip, it is necessary to reduce the rolling speed since it is easy to break. Therefore, since the passing time of the steel strip between the heating device 5 and the tandem rolling jaB varies depending on the rolling speed pattern, the amount of temperature drop of the steel strip during this time also varies. Therefore, there was a problem in that the thickness of the steel strip after rolling also varied as the deformation resistance during rolling also varied. (Note that the rolling schedule in a tandem rolling mill is generally set assuming that the deformation resistance of the steel strip is constant.) This invention was made in consideration of these conventional problems. Therefore, it is an object of the present invention to solve the above-mentioned problems by providing a second heating device immediately adjacent to the entrance side of the rolling mill.
Ｃ問題点を解決するための手段〕
この発明は、巻戻機とタンデム圧延機との間に加工順序
に従って、鋼帯を加熱する第１の加熱装置と、鋼帯の蛇
行を防止する蛇行防止装置と、放冷によって降下した鋼
帯の温度を放冷前の温度又はそれ以上に上昇せしめる第
２の加熱装置とを、順次配設した連続温間圧延設備とし
たものである。Means for Solving Problem C] This invention provides a first heating device that heats the steel strip according to the processing order between the unwinding machine and the tandem rolling mill, and a meandering prevention device that prevents the steel strip from meandering. This is a continuous warm rolling facility in which a device and a second heating device that raises the temperature of the steel strip, which has fallen due to cooling, to the temperature before cooling or higher are sequentially arranged.
巻戻機によって巻戻された鋼帯は、溶接機やルーパー等
を経て第１の加熱装置において所定温度に加熱された後
、蛇行防止装置であるステアリング装置によって蛇行防
止される。鋼帯はこのステアリング装置を通過すること
によって放冷され、温度が低下するが、ステアリング装
置通過後、第２の加熱装置へ入り、ここで放冷前の温度
又はそれ以上に加熱される。そして、加熱によって変形
抵抗が低下した状態でタンデム圧延機に入り圧延される
。従って、タンデム圧延機の圧延速度が変化しても、変
形抵抗が小さくなっているため鋼帯の板厚が変動するこ
とはない。The steel strip rewound by the unwinding machine is heated to a predetermined temperature in a first heating device through a welding machine, a looper, etc., and is then prevented from meandering by a steering device that is a meandering prevention device. As the steel strip passes through the steering device, it is allowed to cool and its temperature decreases, but after passing through the steering device, it enters a second heating device, where it is heated to the temperature before being allowed to cool or higher. Then, with the deformation resistance reduced by heating, the material is entered into a tandem rolling mill and rolled. Therefore, even if the rolling speed of the tandem rolling mill changes, the thickness of the steel strip does not change because the deformation resistance is small.
以下、この発明を図面に基づいて説明する。第１図は本
発明に係る実施例の概要説明図であり、第２図は加熱に
よる鋼帯の変形抵抗の変化を示す線図である。第３図は
他の実施例を示す。なお、従来例と同一の部分について
は同一の符号を付し、重複する説明を省く。The present invention will be explained below based on the drawings. FIG. 1 is a schematic explanatory diagram of an embodiment according to the present invention, and FIG. 2 is a diagram showing changes in deformation resistance of a steel strip due to heating. FIG. 3 shows another embodiment. Note that the same parts as in the conventional example are given the same reference numerals, and redundant explanation will be omitted.
図において、酸洗済みの熱延鋼帯２は加工順序に従って
以下の工程を経過する。すなわち、１台又は複数台の巻
戻機１ａ、ｌｂから巻戻された鋼帯２はそれぞれの端部
を溶接機３で接続されて連続体となりルーパー４へ入る
。ルーパー４は鋼帯の通過経路を伸縮できるようになっ
ており、従って鋼帯のルーパー４内での滞留時間を必要
に応じて調整するようになっている。次に、鋼帯はルー
パー４から大型の第１の加熱装置５へ入り、ここで所定
温度（２００°Ｃを超えない）に加熱されてから綱帯２
の蛇行を修正しかつ防止するステアリング装置（蛇行防
止装置）６を通過する。そして、ステアリング装置６を
通過する際に放冷によって温度低下した鋼帯は、次に小
型の第２の加熱装置７において放冷前の温度に高められ
、変形抵抗を小さくした状態でタンデム圧延機８で圧延
される。In the figure, the hot-rolled steel strip 2 that has been pickled undergoes the following steps in accordance with the processing order. That is, the steel strip 2 rewound from one or more unwinding machines 1a, lb has its respective ends connected by a welder 3 to form a continuous body and enters the looper 4. The looper 4 is capable of expanding and contracting the path through which the steel strip passes, so that the residence time of the steel strip within the looper 4 can be adjusted as necessary. Next, the steel strip enters the large first heating device 5 from the looper 4, where it is heated to a predetermined temperature (not exceeding 200°C) and then heated to a predetermined temperature (not exceeding 200°C).
The steering device (meandering prevention device) 6 corrects and prevents meandering of the vehicle. The steel strip, whose temperature has been lowered by cooling while passing through the steering device 6, is then raised to the temperature before cooling in a small second heating device 7, and is transferred to a tandem rolling mill with the deformation resistance reduced. Rolled at 8.
圧延されたストリップ１０は走間シャー９で切断されて
巻取機１１ａ、ｌｌｂ等に巻取られる。The rolled strip 10 is cut by a running shear 9 and wound up by winders 11a, llb, etc.
いま、ステアリング装置６を通過する鋼帯２のパス長さ
を例えば２０ｍとすると、大気中での放冷による温度低
下量は約１°Ｃ／秒であるので、鋼帯速度が５００ｍ／
分の場合における鋼帯の温度低下量は
となり、同様に鋼帯速度が５０ｍ／分の場合には、とな
る、すなわち、鋼帯速度が５００ｍ／分と５０ｍ／分と
ではタンデム圧延機の入側において約２０″Ｃもの温度
差が生じることになり、従って変形抵抗も変動して（第
２図参照）、ストリップｌＯの最終板厚に大きな影響を
与える結果を生じる。Now, if the path length of the steel strip 2 passing through the steering device 6 is, for example, 20 m, the temperature decrease due to cooling in the atmosphere is about 1°C/sec, so the steel strip speed is 500 m/sec.
Similarly, when the steel strip speed is 50 m/min, the temperature decrease of the steel strip is as follows.In other words, when the steel strip speed is 500 m/min and 50 m/min, the input A temperature difference of about 20"C will occur between the sides, and the deformation resistance will therefore also vary (see FIG. 2), with the result that the final thickness of the strip IO will be greatly influenced.
そこで、その原因となる温度低下を防ぐために、本発明
に係る小型の第２加熱装置がタンデム圧延機８の入側直
近に配設されている。Therefore, in order to prevent the temperature drop that would cause this, a small second heating device according to the present invention is disposed close to the entrance side of the tandem rolling mill 8.
さらに、加熱装置５．７における鋼帯温度は２００°Ｃ
を超えないように維持されるので、テンパーカラーの発
生するおそれはない。また、熱延鋼帯２の温度は酸洗直
後でも８０″Ｃ未満であるので、巻戻機１よりルーパー
４までの鋼帯２と接触するロール材質は従来はウレタン
等を用いるが、加熱装置５の次に配置されたステアリン
グ装置６に用いられるロールは、耐熱性の優れた不織布
を用いることで、８０°Ｃ以上２００°Ｃ以下の温度に
耐えることができる。Furthermore, the steel strip temperature in heating device 5.7 is 200°C.
, so there is no risk of temper color occurring. Furthermore, since the temperature of the hot-rolled steel strip 2 is less than 80"C even immediately after pickling, the material of the rolls that come into contact with the steel strip 2 from the unwinding machine 1 to the looper 4 is conventionally made of urethane. The roll used in the steering device 6 disposed next to the steering device 5 can withstand temperatures of 80° C. or more and 200° C. or less by using a nonwoven fabric with excellent heat resistance.
なお、上記加熱装置５．７としては、誘導加熱装置、直
火炉、ラジアントチューブバーナ式炉など、いずれの加
熱装置でも“よいが、別途設けた燃焼装置から発生する
燃焼ガスを鋼帯に吹き付けるガスジェット式加熱装置の
方が装置が簡便でかつ鋼帯速度の変化に容易に対応でき
る点でより好適である。実施例において、加熱装置７は
大型の加熱装置５の１１５〜１／７程度の小容量である
。The heating device 5.7 may be any heating device such as an induction heating device, a direct-fired furnace, or a radiant tube burner type furnace. A jet type heating device is more suitable because the device is simple and can easily respond to changes in the steel strip speed. It has a small capacity.
また、加熱装置５で発生する排ガスを小型の加熱装置７
で利用するようにしてもよい。In addition, the exhaust gas generated by the heating device 5 is transferred to a small heating device 7.
You may also use it in
第３図に他の実施例を示す。FIG. 3 shows another embodiment.
これは大型加熱装置５と小型加熱装置７との間にステア
リング装Ｗ６及び張力付加装置１２を配置した圧延設備
で、張力付加装置１２によりタンデム圧延機８の入側の
張力が高まり、圧延性を向上する。また、加熱装置５内
の鋼帯の張力を低くしであるので、加熱中の綱帯のクリ
ープ変形による幅縮み等を防止できるようになっている
。１４は鋼帯速度検出機、１５ａ〜１５ｄは加熱装置５
゜７の人出側に設けた板温度計であって、鋼帯温度の高
精度制御を可能としたものである。１７はその制御装置
である。１３は高温ガス発生機、１６ａ、１５ｂはそれ
ぞれ加熱装置５，７へ高温ガスを供給するブロワであっ
て、加熱装置をガスジェット式としたものである。This is a rolling equipment in which a steering device W6 and a tension adding device 12 are arranged between a large heating device 5 and a small heating device 7. The tension adding device 12 increases the tension on the entry side of the tandem rolling mill 8, improving rolling properties. improves. Furthermore, since the tension of the steel strip in the heating device 5 is lowered, it is possible to prevent the width from shrinking due to creep deformation of the steel strip during heating. 14 is a steel strip speed detector, 15a to 15d are heating devices 5
This is a plate thermometer installed on the exit side of the steel strip, which enables highly accurate control of the temperature of the steel strip. 17 is its control device. 13 is a high-temperature gas generator, and 16a and 15b are blowers that supply high-temperature gas to heating devices 5 and 7, respectively, and the heating devices are of a gas jet type.
以上説明したように、この発明によればその構成を、巻
戻機とタンデム圧延機との間に加工順序に従って、鋼帯
を加熱する第１の加熱装置と、鋼帯の蛇行防止装置と、
放冷によって降下した鋼帯の温度を放冷前の温度に高め
る第２の加熱装置を順次配置した連続温間圧延設備とし
たため、圧延後の鋼帯の板厚の変動や圧延の際の板破断
等を防止するとともに、完全連続圧延による製品ストリ
ップの歩止まり１品質、加工能率等の向上を図ることが
でき、さらに従来より２０〜３０％も厚みの大きい熱延
鋼帯を原材とできるための経済性等の効果が得られる。As explained above, according to the present invention, the configuration includes a first heating device that heats the steel strip according to the processing order between the unwinding machine and the tandem rolling mill, and a meandering prevention device for the steel strip.
Since the continuous warm rolling equipment is equipped with a second heating device that raises the temperature of the steel strip that has dropped due to cooling to the temperature before cooling, it is possible to prevent fluctuations in the thickness of the steel strip after rolling and to prevent changes in the thickness of the steel strip during rolling. In addition to preventing breakage, it is possible to improve the yield rate and processing efficiency of product strips through completely continuous rolling, and it is also possible to use hot-rolled steel strips that are 20 to 30% thicker than conventional ones as raw material. Economical and other effects can be obtained.
第１図は本発明に係る実施例の概要説明図、第２図は鋼
帯の加熱温度と変形抵抗の関係を示す線図、第３図は他
の実施例の概要説明図、第４図は従来例の冷間圧延設備
の概要説明図、第５図は連続圧延における鋼帯速度のパ
ターンを示す線図である。
ｌａ、ｌｂ・・・・・・巻戻機、２・・・・・・鋼帯、
５・・・・・・第１の加熱装置、６・・・・・・蛇行防
止装置（ステアリング装置）、７・・・・・・第２の加
熱装置、８・・・・・・タンデム圧延機。Fig. 1 is a schematic explanatory diagram of an embodiment according to the present invention, Fig. 2 is a diagram showing the relationship between heating temperature and deformation resistance of a steel strip, Fig. 3 is a schematic explanatory diagram of another embodiment, and Fig. 4 5 is a schematic explanatory diagram of a conventional cold rolling facility, and FIG. 5 is a diagram showing a pattern of steel strip speed in continuous rolling. la, lb... Rewinding machine, 2... Steel strip,
5...First heating device, 6...Meandering prevention device (steering device), 7...Second heating device, 8...Tandem rolling Machine.
Claims (1)
ンデム圧延機を有する圧延設備において、前記巻戻機と
タンデム圧延機との間に加工順序に従って順次、鋼帯を
加熱する第１の加熱装置と、鋼帯の蛇行防止装置と、放
冷によって降下した鋼帯の温度を放冷前の温度又はそれ
以上に上昇せしめる第２の加熱装置とを配設したことを
特徴とする連続温間圧延設備。In a rolling facility having an unwinding machine that rewinds the steel strip and a tandem rolling mill that cold-rolls the unwound steel strip, the steel strip is sequentially heated between the unwinding machine and the tandem rolling mill according to the processing order. A steel strip meandering prevention device, and a second heating device that raises the temperature of the steel strip, which has dropped due to cooling, to the temperature before cooling or higher. Continuous warm rolling equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15102386A JPH0716682B2 (en) | 1986-06-27 | 1986-06-27 | Continuous warm rolling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15102386A JPH0716682B2 (en) | 1986-06-27 | 1986-06-27 | Continuous warm rolling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6310004A true JPS6310004A (en) | 1988-01-16 |
| JPH0716682B2 JPH0716682B2 (en) | 1995-03-01 |
Family
ID=15509611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15102386A Expired - Fee Related JPH0716682B2 (en) | 1986-06-27 | 1986-06-27 | Continuous warm rolling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716682B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0360903A (en) * | 1989-07-29 | 1991-03-15 | Miyanaga:Kk | Detachable structure of rotating tool |
-
1986
- 1986-06-27 JP JP15102386A patent/JPH0716682B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0360903A (en) * | 1989-07-29 | 1991-03-15 | Miyanaga:Kk | Detachable structure of rotating tool |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716682B2 (en) | 1995-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4338228B2 (en) | Production line for rolling hot strip continuously or discontinuously | |
| US5910184A (en) | Method of manufacturing hot-rolled flat products | |
| JPH07214135A (en) | Method and device for manufacture of band steel hot rolled from continuously cast material | |
| JP2965969B1 (en) | Continuous plating method for steel sheet | |
| JPS6310004A (en) | Continuous warm rolling equipment | |
| JPH09122708A (en) | Method and installation for manufacturing hot rolled strip | |
| JPH0446652B2 (en) | ||
| JPH0716683B2 (en) | Continuous warm rolling equipment for stainless steel strip | |
| JPH091209A (en) | Equipment for continuously casting and hot-rolling stainless steel strip and manufacture of stainless steel strip excellent in surface quality | |
| US4936132A (en) | Continuous hot rolling process for making thin steel strip | |
| JP2602291B2 (en) | Hot rolling equipment and rolling method | |
| JPS6310009A (en) | Continuous warm rolling method for stainless steel strip and its equipment | |
| JPS58495B2 (en) | Renzokushiyoudonouchi | |
| JPH01254302A (en) | Thin sheet hot rolling equipment and rolling method | |
| JP2004141885A (en) | Method for controlling sheet width in cold rolling process | |
| JPH01306004A (en) | Method for rolling continuously cast thin slab | |
| JPH09168802A (en) | Continuous warm rolling mill of stainless steel strip | |
| JPS5827004B2 (en) | Continuous cold rolling equipment | |
| JPH01219128A (en) | Manufacture of thin scale hot rolled steel sheet | |
| JPH07314008A (en) | Continuous rolling equipment for hot band steel | |
| JPH0273921A (en) | Continuous heat treatment equipment for coil material | |
| JPS61269904A (en) | Installation for producing hot rolled steel strip by direct rolling | |
| JPH08206704A (en) | Hot rolling equipment | |
| JPH0760303A (en) | Cold rolling equipment of steel strip | |
| JPH06102202B2 (en) | Rolling method for U-shaped steel sheet pile |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |