JPS6082252A - Continuous casting device for billet with variable width - Google Patents
Continuous casting device for billet with variable widthInfo
- Publication number
- JPS6082252A JPS6082252A JP18701883A JP18701883A JPS6082252A JP S6082252 A JPS6082252 A JP S6082252A JP 18701883 A JP18701883 A JP 18701883A JP 18701883 A JP18701883 A JP 18701883A JP S6082252 A JPS6082252 A JP S6082252A
- Authority
- JP
- Japan
- Prior art keywords
- width
- slab
- cutting
- signal
- plan
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/05—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds into moulds having adjustable walls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/126—Accessories for subsequent treating or working cast stock in situ for cutting
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はエネルギー損失が低く、歩留損失が少なく、経
済性の高い鋳片幅変更を可能ならしめる鋳片幅可変連続
鋳造装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a continuous casting device with variable slab width that allows for low energy loss, low yield loss, and highly economical slab width change.
従来技術
近年、鋼の連続鋳造（以下単に連鋳という。）において
、連々鋳、即ち取鍋を交換しつつ長時間連鋳する極めて
生産性の高い手段が採用されるようになった。前記連々
鋳では注文ロットに応じて異種成分の鋼を連鋳したり、
あるいは鋳片の幅を鋳造中に変更する幅ｉｌＩ丁変生変
手段みられ、一部では実用化されるようになっている。BACKGROUND OF THE INVENTION In recent years, in continuous casting of steel (hereinafter simply referred to as continuous casting), continuous casting, that is, an extremely highly productive means of continuously casting for a long time while exchanging ladles, has been adopted. In the above-mentioned continuous casting, steels with different compositions are continuously cast according to the ordered lot,
Alternatively, there is a method for changing the width of a slab during casting, and some methods have come into practical use.
第１図は、前記幅Ｏｆ変を実施するための組合せ鋳型の
一例を示す立面図である。本例において組合せ鋳型（以
下、単に鋳型と言う。）ｌは固定支持された長辺片２と
、該長辺片２間に摺動自在に内装された短辺片３とから
構成されている。短辺片３には、例えばシリンダー装置
を利用した駆動装置４および駆動装置４に制御信号を４
＝Ｊ与する幅制御装置５等からなる鋳片幅変更装Ｗ（以
下、幅変更装置と言う、）６が連結されている。而して
予め設定された生産計画に基づいて、鋳造中に幅変更を
行うには１幅制御装置５の制御信号によって駆動装置４
が駆動され、短辺片３が前進又は後退して鋳型幅が変更
される。これによって鋳型ｌにより引抜かれる鋳片７の
幅が変更される。FIG. 1 is an elevational view showing an example of a combination mold for implementing the width Of change. In this example, a combination mold (hereinafter simply referred to as a mold) 1 is composed of a fixedly supported long side piece 2 and a short side piece 3 slidably inserted between the long side pieces 2. . The short side piece 3 has a drive device 4 using a cylinder device, for example, and a control signal 4 to the drive device 4.
A slab width changing device W (hereinafter referred to as width changing device) 6 consisting of a width controlling device 5 and the like that gives = J is connected. Accordingly, in order to change the width during casting based on a preset production plan, the drive device 4 is activated by a control signal from the width control device 5.
is driven, the short side piece 3 moves forward or backward, and the mold width is changed. As a result, the width of the slab 7 drawn by the mold l is changed.
第２図は前記幅可変を実行した鋳片７の概略立面図を示
すもので、第２図（ａ）は、狭幅Ｗ２から広幅Ｗ！へ、
又、第２図（ｂ）は広幅Ｗ１から狭幅Ｗ２へ変更したも
ので、７０は幅変更部を示す、又、矢印３０は鋳造方向
を示すものである（以下同じ）。FIG. 2 shows a schematic elevational view of the slab 7 that has been subjected to the width variation, and FIG. 2(a) shows the range from the narrow width W2 to the wide width W! fart,
Further, FIG. 2(b) shows a change from wide width W1 to narrow width W2, where 70 indicates a width changing part, and arrow 30 indicates the casting direction (the same applies hereinafter).
ところで前記幅変更部７０は、駆動装置４の設備能力や
その他の技術的制約から漸減もしくは漸増となり、かな
りの長さにわたり、不整形の部分を生ずる結果となる。However, the width changing portion 70 is gradually decreased or increased due to the equipment capacity of the drive device 4 and other technical constraints, resulting in an irregularly shaped portion over a considerable length.
このため、幅変更開始点等の制御が不適となったり、幅
変更部の存在を考慮せずに鋳片７を採寸すると、幅の過
不足部分を有する鋳片が発生し、歩留りが低下する。For this reason, if control of the width change starting point, etc. becomes inappropriate, or if the slab 7 is measured without taking into account the existence of the width changing part, slabs with excessive or insufficient width parts will occur, resulting in a decrease in yield. .
一方、連鋳でなるべく高温の鋳片を製造し、該鋳片をそ
のまま冷却することなく直接に、あるいは端部加熱装置
によって端部のみを加熱したり、加熱炉での軽加熱、保
熱等を行ない、連続移送ラインから降すことなく熱間圧
延を行なう直接圧延も近時積極的に採用され、省エネル
ギー効果と高生産性が期待できるようになった。前記直
接圧延を効率的に行うためには鋳片温度をできるだけ高
温にすると共に、採寸された鋳片（該所定長さに切断さ
れ、採寸された鋳片を以下単位鋳片７００とａう）の形
状を所定の形状として次ＪＩ程へ送給することが重要で
ある。On the other hand, continuous casting is used to produce slabs as high as possible, and the slabs are heated directly without being cooled, or only the ends are heated using an end heating device, light heating in a heating furnace, heat retention, etc. Direct rolling, in which hot rolling is performed without unloading from a continuous transfer line, has recently been actively adopted, and energy-saving effects and high productivity can be expected. In order to efficiently carry out the direct rolling, the temperature of the slab should be kept as high as possible, and the slab should be heated to a certain size (the slab cut to a predetermined length and measured will be referred to as a unit slab 700 hereinafter). It is important to feed the material to the next JI stage with the shape as a predetermined shape.
従来、前記幅変更部を含む単位鋳片（以下、幅変更鋳片
７００ｘと言う）は、第３図に示すように胴線部分？Ｏ
Ａ、７０Ｂ（以下切捨部と言う）をν」断除去し、直方
形状の単位鋳片７００としたのち、圧延工程に送り、成
品化していた。前記切断除去は、一旦鋳片を常温付近ま
で冷却し、冷片とした状態で行なう必要があるため、ν
Ｊ拾陥部発生よる歩留り低下に加えて、前記単位鋳片７
００の圧延前回加熱に著しく熱エネルギーを必要とし、
生産性および経済性の点で不利益であった。而して従来
、前記鋳片の幅可変は、例えば第４図に示すように鋳片
幅を狭幅Ｗ２から広＠Ｗ１へ変更する場合、広幅の単位
鋳片７００Ａの始端７００Ａｓに幅変更終了点が一致す
るよう幅変更開始位置Ｘが設定され、又、第５図に示す
ように広幅Ｗ１から狭幅Ｗ２へ変更する場合には、広幅
の単位鋳片７００Ａの終端？００Ａ２を幅変更開始位置
ｘに設定し、それぞれ幅変更鋳片７００ｘにおける切捨
部？ＯＡ、７０Ｂを最小とするよう幅変更装置６の制御
が行われていた。ところで前記幅可変は、鋳造速度が所
定速度以下となると鋳型内における鋳片の凝固厚が大と
なり、鋳片の変形抵抗が大きくなることからその幅可変
ができなくなる。又幅変更装置６が突発的に故障して幅
可変ができなくなる事態も発生する。このような鋳造装
置の異常が発生した場合、前記従来の幅可変制御では以
下の問題があった。Conventionally, a unit slab (hereinafter referred to as a width-changing slab 700x) including the width changing section has a body line portion as shown in FIG. O
A and 70B (hereinafter referred to as cut portions) were cut off by ν'' to form rectangular unit slabs 700, which were then sent to a rolling process and made into finished products. The above-mentioned cutting and removal process needs to be performed once the slab is cooled to around room temperature and made into a cold slab.
In addition to the decrease in yield due to the occurrence of J defects, the unit slab 7
Requires significant thermal energy for pre-rolling heating of 00,
This was disadvantageous in terms of productivity and economy. Conventionally, when changing the width of the slab from a narrow width W2 to a wide @W1 as shown in Fig. 4, the width change ends at the starting end 700As of the wide unit slab 700A. The width change start position X is set so that the points coincide, and when changing from wide width W1 to narrow width W2 as shown in FIG. 5, the terminal end of the wide unit slab 700A? 00A2 is set as the width change start position x, and the truncated portion of the width change slab 700x is set respectively. The width changing device 6 was controlled to minimize OA and 70B. However, when the casting speed becomes lower than a predetermined speed, the solidified thickness of the slab in the mold increases, and the deformation resistance of the slab increases, making it impossible to change the width. Further, a situation may occur in which the width changing device 6 suddenly breaks down and the width cannot be changed. When such an abnormality occurs in the casting apparatus, the conventional width variable control has the following problems.
即ち第６図に示すように広幅単位鋳片７００Ａの終端７
００Ａ２で幅変更を開始する生産計画での操業中に前記
鋳造装置の異常が発生すると、鋳片７は必然的に広幅Ｗ
１のままで鋳造される。この場合、従来前記異常発生に
対応して採寸計画を変更する手段がなかったことから鋳
片７の採寸は、計画通りの長さで行われるｅｃｌ〜Ｃ３
はその切断線を示すものである。このため７Ｃ１７ｄが
切捨部となり１歩留りが大巾に低下すると共に冷片量が
増大し、前述したエネルギー損失も極めて大となる。又
鋳造装置の異常が例えばＹ位置で解除された場合でも従
来の制御では単位鋳片の終端に相当する切断線Ｃ３から
しか幅変更が開始されないため前記異常解除位置Ｙから
なお余分の切捨部７ｅ、７ｆが発生する事態となってい
た。That is, as shown in FIG. 6, the terminal end 7 of the wide unit slab 700A
If an abnormality occurs in the casting equipment during operation according to a production plan that starts width change at 00A2, the slab 7 will inevitably change to a wide width W.
It is cast as 1. In this case, since conventionally there was no means to change the measuring plan in response to the occurrence of the above-mentioned abnormality, the measuring of the slab 7 was carried out according to the planned length.
indicates the cutting line. For this reason, 7C17d becomes a truncated portion, and the yield per unit is greatly reduced, and the amount of cold pieces increases, and the energy loss described above also becomes extremely large. In addition, even if the abnormality in the casting device is cleared at the Y position, for example, the conventional control only starts changing the width from the cutting line C3 corresponding to the end of the unit slab. 7e and 7f were occurring.
発０１Ｊの目的
本発明は前述した幅可変中に鋳造装置の異常や次工程装
置の生産異常が発生した場合において、エネルギーロス
および歩留ロスが最小となるように、鋳片幅変更と、鋳
片切断を行ない得る装置を提供するものである。Purpose of Issue 01J The present invention aims to change the width of the slab and control the casting process so that energy loss and yield loss are minimized in the event that an abnormality occurs in the casting equipment or production abnormality in the next process equipment during the above-mentioned width adjustment. The present invention provides an apparatus capable of performing one-sided cutting.
発明の構成・作用
禾発すｊは前記鋳型ｌを備えた鋳片幅可変連鋳装置にお
いて、生産計画指令装置からの採寸計画指令信号により
鋳片幅変更装置に鋳片幅制御信号を与え、さらに鋳片幅
測定装置からの鋳片幅検出信号入力と生産計画指令との
照合を行い鋳片切断装置に切断指令信号を与えると共に
、当該鋳造装置の異常検出装置からの入力信号および次
工程制御装置からの生産異常入力信号からエネルギーロ
スおよび歩留りロスが最小となる採寸計画再編成を行い
、鋳片幅変更と切断指令変更を行う総合演算制御装置を
備えたことを特徴とする前記鋳片幅可変連鋳装置に関す
るものである。Structure and operation of the invention In the variable slab width continuous casting device equipped with the mold 1, a slab width control signal is given to the slab width changing device by a measuring plan command signal from the production planning command device, and The slab width detection signal input from the slab width measuring device is checked against the production planning command and a cutting command signal is given to the slab cutting device, and the input signal from the abnormality detection device of the casting device and the next process control device are The variable slab width is characterized in that it is equipped with a comprehensive calculation and control device that reorganizes the measuring plan to minimize energy loss and yield loss based on the production abnormality input signal from the input signal, and changes the slab width and cutting command. This relates to continuous casting equipment.
第７図は、本発明の概略説明図で、湾曲型連鋳装置を例
にとったものである。図において８は溶鋼９を貯留する
タンディツシュであり、１１は鋳片７の引出しガイドロ
ール、１２は鋳片７の切断装置である。タンディツシュ
８に貯留された溶鋼９は前記鋳型ｌに注入され、所定幅
の鋳片７となって連続的に引出される。鋳片７は切断装
置１２によって設定長さに切断された後、例えば端部加
熱装置１３、幅圧下装置１４、圧延装置１５等の次工程
へ送給される。１Ｂは生産計画指令装置であり、予め設
定された生産計画に基づいて製造される鋳片７の幅、単
重およびそれに基づくジノ断長さ等の採寸計画指令を発
する。１７は総合演算制御製置（以下、単に制御装置と
言う）であり、以下の制御機能を有する。まず前記生産
計画指令装置１６の採寸計画指令信号を入力することに
より、鋳片幅が生産計画に基づいた所定幅となるよう幅
変更部Ｍ６に鋳片幅制御信号を与える。又、鋳型１より
引出される鋳片７の幅を、鋳片幅測定装置１８によって
検出し、前記採寸計画指令信号の大力に加えて該鋳片幅
測定装置１８からの鋳片幅検出信号を入力することによ
って、１１７制御装置１７では生産計画指令と鋳片幅と
の照合を行い、それに差異が生じた場合には当該鋳片が
切断装置１２に達し、切断を開始するタイミングで、切
断装置１２に切断指令信号を与える。即ち、鋳片７の実
際の幅を検出し、設定幅とに差異が生じた場合には単位
鋳片７００の単重が１１５重量となるように鋳片７の採
寸寸法（切断長さ）を決定し、それに基づき切断装Ｍ１
２に切断指令信号を与える。FIG. 7 is a schematic explanatory diagram of the present invention, taking a curved continuous casting device as an example. In the figure, 8 is a tundish for storing molten steel 9, 11 is a pull-out guide roll for the slab 7, and 12 is a cutting device for the slab 7. The molten steel 9 stored in the tundish 8 is poured into the mold 1, and is continuously drawn out as a slab 7 of a predetermined width. After the slab 7 is cut into a predetermined length by the cutting device 12, it is sent to the next process, such as an end heating device 13, a width reduction device 14, and a rolling device 15. 1B is a production plan command device, which issues measurement plan commands such as the width and unit weight of the slab 7 to be manufactured based on a preset production plan, and the cutting length based thereon. Reference numeral 17 denotes a general arithmetic and control device (hereinafter simply referred to as a control device), which has the following control functions. First, by inputting a measuring plan command signal from the production plan commanding device 16, a slab width control signal is given to the width changing section M6 so that the slab width becomes a predetermined width based on the production plan. Further, the width of the slab 7 drawn out from the mold 1 is detected by the slab width measuring device 18, and in addition to the strength of the measurement plan command signal, the slab width detection signal from the slab width measuring device 18 is sent. By inputting the input, the 117 control device 17 compares the production plan command with the width of the slab, and if a discrepancy occurs, the slab reaches the cutting device 12 and the cutting device A cutting command signal is given to 12. That is, the actual width of the slab 7 is detected, and if there is a difference between the set width and the set width, the measurements (cutting length) of the slab 7 are adjusted so that the unit weight of the unit slab 700 is 115. Based on the decision, cutter M1
A cutting command signal is given to 2.
一方、前述した鋳造装置の異常を例えばピンチローラｌ
ｌａの回転速度を監視し、又幅変更装置６の作動状況を
監視して前記異常を検出する異常検出装Ｒ１８で検出す
る。又、次工程の、例えば端部加熱装置！３、あるいは
幅圧軍装５１１４、あるいは圧延装置１５等に故障が生
じたり、圧延不良による復旧作業等のトラブルによる生
産異常を次工程制御装置２０によって検出する。On the other hand, if the above-mentioned abnormality in the casting equipment is detected, for example, the pinch roller
The abnormality detection device R18 detects the abnormality by monitoring the rotational speed of la and the operating status of the width changing device 6. Also, for the next process, for example, an end heating device! 3, or the next process control device 20 detects a production abnormality due to a failure in the width rolling equipment 5114 or the rolling device 15, or troubles such as recovery work due to poor rolling.
前記異常検出装置１９および次工程制御装置２ｏによる
検出信号は制御装置１７に入力される。而して制御装置
１７では前記入力信号によって鋳造異常あるいは次工程
の生産異常（該鋳造異常および生産異常を総称して以下
単に異常と言う）を検知する。該異常が検知されたら制
御装置Ｉ７では、エネルギーロスおよび歩留りロスが最
小となる採寸計画再編成を行ない、該再Ｓ成に基づいて
幅変更装置６および切断装置１２に鋳片幅変更指令信号
および切断指令変更信号を与える。Detection signals from the abnormality detection device 19 and the next process control device 2o are input to the control device 17. The control device 17 detects a casting abnormality or a production abnormality in the next process (the casting abnormality and the production abnormality are hereinafter simply referred to as abnormality) based on the input signal. When the abnormality is detected, the control device I7 reorganizes the measuring plan to minimize energy loss and yield loss, and based on the reconfiguration, sends a slab width change command signal and Gives a cutting command change signal.
さて、本出願人は、前記幅変更鋳片７００Ｘをも直接圧
延するために種々研究を重ねた結果、第８図に示すよう
に幅変更部７ｏの前後に設定長さ以上の平行部Ｚを形成
した形状とすることによって直接圧延が可能となること
を知見し、先に出願した。一方、近年幅方向の大圧下装
置の開発により、鋳片７の幅に対し、その１０〜２０％
を圧下し、幅縮小することも可能となっている。而して
本発明においては、かかる技術等をも積極的に活用し、
前記目的の達成をＩＪｆ能ならしめるものである。Now, as a result of various studies in order to directly roll the width-changing slab 700X, the present applicant has created parallel parts Z with a length longer than the set length before and after the width-changing part 7o, as shown in FIG. They found that direct rolling was possible by forming the shape into a formed shape, and filed an application earlier. On the other hand, with the recent development of large reduction devices in the width direction, 10 to 20% of the width of the slab 7 has been developed.
It is also possible to reduce the width by rolling down. Therefore, in the present invention, such technology etc. are actively utilized,
This will enable IJf to achieve the above objectives.
制御装置１７において、 ｎｉｉ記異常を検知した際の
採寸計画再編成の実施例について説明する。An example of reorganizing the measurement plan when the control device 17 detects an abnormality will be described.
実施例１
第９］Δによって広幅ｗ１から狭幅ｗ２への幅可変を行
った際に異常が検知された場合について説明する。Embodiment 1 9th] A case where an abnormality is detected when the width is varied from the wide width w1 to the narrow width w2 using Δ will be described.
木実雄側においては、生産計画では、破線で示すように
切断線ｃ２およびｃ３で採【Ｊされる鋳片を幅変更鋳片
７００Ｘとし、Ｘ点で幅変更を開始する予定であった。On the Kinio side, in the production plan, the slab taken at cutting lines c2 and c3 was to be a width-changed slab 700X, as shown by the broken line, and the width change was scheduled to start at point X.
又、１＃Ｊ変更鋳片７００Ｘを含め、広幅鋳片（Ｗ＋）
および狭幅鋳片（ｗ２）とも直接圧延を行う計画であっ
た。In addition, wide slab (W+) including 1#J modified slab 700X
The plan was to perform direct rolling for both the narrow width slab (w2) and the narrow slab (w2).
前記幅変更開始位置Ｘの前方のＡ点で異常が検知された
とすると、Ｘ点よりの幅変更が実施できないことから鋳
片は継続して広幅Ｗ１のままで鋳ｙ！Ｓ、１より引抜か
れることになる。而してかがる場合、第１０図にブロッ
ク図で示すように、ます幅圧下装置１４によって広幅の
鋳片から所定の板幅まで圧下できるか否かを、予め入力
されていた情報をもとにして制御装置１７で判断する。If an abnormality is detected at point A in front of the width change start position X, the width cannot be changed from point X, so the slab continues to be cast at wide width W1 and y! It will be extracted from S,1. When bending, as shown in the block diagram in Fig. 10, information input in advance is also used to determine whether or not the width reduction device 14 can reduce a wide slab to a predetermined plate width. The control device 17 makes the determination.
圧下可能であれば単位鋳片の重量が生産計画に基づく目
標重量となるように切断長さを変更する。つまり第９図
に実線で示す如く鋳片幅が生産計画の狭幅ｗ２より広幅
Ｗｘに広くなった分を単位鋳片の長さを短かくすること
によって単重を生産計画と一致させ、直接圧延を可能な
らしめるための採寸計画の再編成を行う。If rolling is possible, the cutting length is changed so that the weight of the unit slab becomes the target weight based on the production plan. In other words, as shown by the solid line in Figure 9, by shortening the length of the unit slab by the amount that the slab width has become wider Wx than the narrow width W2 of the production plan, the unit weight can be made to match the production plan, and the unit weight can be directly The measurement plan will be reorganized to make rolling possible.
而して該再編成された単位鋳片の長さに基づき、制御装
置１７より切断装置１２に切断線を０３よりＣ３ｏ１ｗ
変更する切断変更の指令が与えられる。Based on the length of the reorganized unit slab, the control device 17 sets the cutting line to the cutting device 12 from 03 to C3o1w.
A cutting change command is given to change.
一方、前記圧下が不能であれば代替成品への振替ができ
ないか検討する。即ち制御装置１７に予め代替できる成
品構成を生産計画指令情報として入力しておき、その中
より広幅Ｗ１で圧延し、成品化できる情報を抽出する０
代替ｏｆ能な製品が抽出できたら当該成品の幅、単重と
なるよう採寸計画を再編成し、切断装置１２に切断変更
の指令を与える。On the other hand, if the above reduction is not possible, we will consider whether it is possible to transfer to an alternative product. That is, product configurations that can be substituted are input in advance to the control device 17 as production planning command information, and information that can be rolled with a wide width W1 and made into products is extracted from the information.
Once a product that can be replaced is extracted, the measurement plan is reorganized to match the width and unit weight of the product, and a command to change the cutting is given to the cutting device 12.
又代替製品への振替もできなかったときには、直接圧延
が実施できず冷片とせざるを得ない。この場合には一旦
冷片としたのちの切捨部が最小となるような採寸計画の
再編成を行う。In addition, when it is not possible to transfer to an alternative product, direct rolling cannot be carried out and cold pieces have no choice but to be used. In this case, the measurement plan is reorganized to minimize the cutoff portion after the cold piece is made.
即ち第１Ｉ図に示すように生産計画に基づく最終成品と
しての輻Ｗ２に対して実際の鋳片は幅ｗＩとなっている
。ところが再加熱し、圧延する際の、特に幅圧下装置１
４によりΔＷの圧下がｕｆ能である。而して２点鎖線で
示すように切捨部？ＯＡ、７０Ｂを切捨てた後の単位鋳
片は狭幅Ｗ２に前記圧下ＨΔｗを加えた幅Ｗ３ （Ｗ３
＝Ｗ２＋２ 参ＡＷ）で製造すればよいから、単位鋳片
の長さを、前記圧下量２・ΔＷの分だけ短かくした採寸
計画のＩＩｆ編成を行うことにより、斜線で示す切捨部
？ＯＡ、７０Ｂは極めて少なくなる。That is, as shown in FIG. 1I, the actual slab has a width wI compared to the width W2 as the final product based on the production plan. However, when reheating and rolling, especially the width reduction device 1
According to 4, the reduction of ΔW is the uf capacity. Is it the truncated part as shown by the two-dot chain line? After cutting off OA and 70B, the unit slab has a width W3 (W3
= W2 + 2 (see AW), so by forming IIf of the measuring plan in which the length of the unit slab is shortened by the reduction amount 2・ΔW, the cut-off portion shown by diagonal lines can be obtained. OA and 70B will be extremely small.
実施例２
実施例１と同様な条件で、第１２図に示す如く狭幅Ｗ２
から広幅Ｗ１への幅可変を行った際に異常が検知された
ときの実施例を示す。Example 2 Under the same conditions as Example 1, the narrow width W2 was
An example will be described in which an abnormality is detected when the width is varied from W1 to W1.
本実施例では広幅Ｗ１の生産計画に対して狭幅Ｗ２の鋳
片が得られる結果となる。ところで単位鋳片の状態にお
ける輻Ｗ１に対し、圧延が完了し、製品としたときの板
幅はトリミング代等をとる必要があることから小さいこ
とが普通である。In this example, a slab with a narrow width W2 is obtained for the production plan of a wide width W1. By the way, with respect to the width W1 in the state of a unit slab, the width of the plate when rolling is completed and the product is made is usually smaller because it is necessary to take trimming allowances and the like.
従って本実施例では、第１３図にブロック図で示すよう
に狭’Ｎｉｌ Ｗ ２の単位鋳片から所定製品が得られ
るか否かを判断する。幅可変量が少ない等により、それ
が８７能であればそれに応じた採寸計画の再ｍ成を行い
、不可能であれば実・流側１と同様に代替製品への振替
ができないか検討する。又、代替製品への振替もできな
かったときは、生産計画に基づく製品の製造ができない
ことになり、当然、直接圧延も実施できず冷片となる。Therefore, in this embodiment, as shown in the block diagram of FIG. 13, it is determined whether a predetermined product can be obtained from a unit slab of narrow Nil W 2 or not. If it is 87cm due to a small amount of width variation, etc., we will reconfigure the measurement plan accordingly, and if it is not possible, we will consider whether it is possible to transfer to an alternative product as in actual/flow side 1. . Furthermore, if it is not possible to transfer to an alternative product, it becomes impossible to manufacture the product based on the production plan, and of course direct rolling cannot be carried out, resulting in cold pieces.
この際には、当該時期において注文の多いことが予想さ
れる製品への振替が前述した歩留りロスを最小にして行
えるよう採寸計画を再ｍ威する。At this time, the measurement plan is revised so that the above-mentioned yield loss can be minimized by transferring to products for which orders are expected to be high during the period.
実施例３
実施例１において異常が解除されたときの実施例を示す
。Example 3 An example will be shown in which the abnormality in Example 1 is canceled.
第９図におけるＹ位置で異常が解除されたとする。この
場合、まず広幅Ｗ１から狭幅Ｗ２への幅変更開始位置を
以下の手順で決定する。It is assumed that the abnormality is canceled at the Y position in FIG. In this case, first, the starting position of width change from wide width W1 to narrow width W2 is determined by the following procedure.
■直前の切断線、即ち単位鋳片７００Ｙの始端ｃｉ＋。(2) The immediately preceding cutting line, that is, the starting end ci+ of the unit slab 700Y.
より平行部Ｚが設定長さく本実施例では平行部Ｚは０．
３Ｌ≦Ｚ＜Ｌとした。但りは単位鋳片の長さである。）
に達しているか否かをチェックする。In this embodiment, the parallel part Z is set to a length of 0.
3L≦Z<L. However, the length is the length of the unit slab. )
Check whether it has been reached.
■前項の平行部Ｚが既に設定長さに達していたら異常解
除位置Ｙを幅変更開始位置とする。(2) If the parallel portion Z mentioned in the previous section has already reached the set length, set the abnormality release position Y as the width change start position.
■平行部Ｚが設定長さに達していないときは、設定長さ
に達する位置を幅変更開始位置とする。■When the parallel portion Z has not reached the set length, the position where the set length is reached is the width change start position.
幅変更開始位置が決定されたらそれに基づき、制御装置
１７より幅変更装置６に鋳片幅変更指令が与えられる。Once the width change start position is determined, a slab width change command is given from the control device 17 to the width change device 6 based on it.
同時に制御装置１７では、幅変更計画に基づいて、前述
した採寸計画の再編成が行われ、切断装置１２に切断変
更指令が与えられる。尚、直接圧延が実施できない状態
となっていたときには、異常解除位置Ｙを幅変更開始位
置とし、異常解除と同時に幅変更を行うことにより切捨
部を最小限にとどめることができる。又、実施例２にお
いて異常が解除された際にも本実施例と同様な採寸計画
再編成を行うことにより、エネルギーロスおよび歩留り
ロスを最小とすることができる。At the same time, in the control device 17, the above-mentioned measuring plan is reorganized based on the width change plan, and a cutting change command is given to the cutting device 12. Note that when direct rolling cannot be carried out, the abnormality release position Y is set as the width change start position, and the width is changed at the same time as the abnormality is removed, thereby making it possible to minimize the truncated portion. Furthermore, even when the abnormality is resolved in the second embodiment, the energy loss and yield loss can be minimized by reorganizing the measuring plan in the same manner as in the present embodiment.
発明の効果
以上詳述したように本発明では、生産計画に対して鋳造
される鋳片幅を検出し、その変動に対応して、単位鋳片
の長さを調整できるうえに、幅可変中に鋳造装置の異常
や次工程の生産異常が発生した場合においても、そのと
きの生産状況やその他の種々の状況、操業条件に応じて
、エネルギーロスおよび歩留りロスが最小となる採寸計
画の再編成が迅速に行え、かつそれに基づく鋳片幅変更
指令および切断指令変更が適確に行えるよになった。こ
のため以下の具体的な効果が得られた。Effects of the Invention As detailed above, in the present invention, the width of the cast slab to be cast according to the production plan can be detected, and the length of the unit slab can be adjusted in response to the fluctuation. Even if an abnormality occurs in the casting equipment or production abnormality in the next process, we will reorganize the measurement plan to minimize energy loss and yield loss, depending on the production status at that time and other various situations and operating conditions. can be carried out quickly, and based on this, the slab width change command and cutting command can be changed accurately. As a result, the following specific effects were obtained.
■生産計画に基づいた正確な採寸ができることから通常
操業時においても歩留ロスを極めて少なくすることがで
きる。■Since accurate measurements can be made based on the production plan, yield loss can be extremely reduced even during normal operations.
０幅可変中に異常が発生したときでも直接圧延の実施率
を高めることができ、エネルギーロスを大１１」に低下
できる。Even when an abnormality occurs during zero-width variation, the rate of direct rolling can be increased and energy loss can be reduced to 11".
■前記異常により直接圧延が実施できなくなり、冷片と
せざるを得ない状態となった場合でも切捨部を最小とし
、又、振替成品への対応範囲を広げる採寸が実施できる
。■Even if direct rolling cannot be carried out due to the above-mentioned abnormality and cold pieces have to be used, measurements can be taken to minimize the cutoff portion and widen the range of compatibility with transfer products.
■前記異常が解除されたとき、そのときの種々の状況に
応じて適切なタイミングで幅ｒＪｆ変を実施でき、かつ
、迅速に生産計画に基づいた正常な操業に戻すことがで
きる。(2) When the abnormality is resolved, the width rJf can be changed at an appropriate timing depending on the various situations at that time, and normal operation based on the production plan can be quickly returned to.
第１図は組合せ鋳型の一例を示す説明図、第２図は幅ｉ
Ｊ（変を行った鋳片の説明図、第３図は幅変更鋳片の説
明図、第４図〜第６図は従来の幅０（変手段を示す説明
図、第７図は本発明の基本的構成を示す説明図、第８図
は幅変更鋳片の他の例を示す説明図、第９図、第１１図
、第１２図は本発明に基づき異常検知の際の幅ｕ（変手
段および採寸計画再編成手段の一実施例を説明する説明
図、第１０図および第１３図は前記異常検知の際の採寸
計画再編成の一実施例を説明するブロック図である。
１・・・組合せ鋳型、２・・・長辺片、３番・・短辺片
、４・・・駆動装置、５・・・幅制御装置、６・・・
（鋳片）幅変更装置、７・・・鋳片、７０・・−幅変更
部、７００・・・単位鋳片、７００ｘφ・Φ幅変更鋳片
、？ＯＡ、７０Ｂ・・・切捨部、８・・―タンディツシ
ュ、９・・番溶鋼、１１・・・引出しガイドロール、１
１ａ＊・・ピンチローラ、１２１１・・切断装置、１３
−一端部加熱装置、１４・・０幅圧下装置、１５・・・
圧延装置、１６Φ・・生産計画指令装置、１７・φ・総
合演算制御装置、１８・・φ鋳片幅測定装置、１９・・
・異常検出装置、２０・・・次工程制御装置、３ｏ１１
１１１１鋳造方向。
特許出願人 新日本製鐵株式会社
代理人 弁理士 井 上 雅 生
第１図
７
第２図
（ａ） （ｂ）
第３図
第４図
第５図
第８図
第９図
第１０図
第１１図
第１３図
手続補正書
昭和５８年１１月２日
特許庁長官 若杉和夫殿
１、事件の表示
昭和５８年特許願第１８７０１８号
２、発明の名称
鋳片幅可変連続鋳造装置
３、補正をする者
事件との関係 特許出願人
住 所 東京都千代田区大手町二丁目６番３号名 称
（６６５）新日本製鐵株式会社代表者 武 １） 豊
【８代理人 〒１０３
住 所 東京都中央区日本ｗ２丁目２番１号共同ビル（
呉服橋）
５、補正命令の日付 自発
６、補正により増加する発明の数 なしく１）明細書第
１１３２第１行目の「Ｘ点よりの」を「Ｘ点からの」と
訂正する。
（２）同第１１頁下から第３行目の「圧下が不能で」を
「圧下が不可能で」と訂正する。
（３）同第１２頁第２、及び５行目、並びに第１３行目
第１０．１４．１５、及び１８８行目「製品」を「成品
」と訂正する。
（４）図面の第１０図及び第１３図を別紙のとおり訂正
する。
（図中の「製品」を「成品」に訂正したものである。）
代理人 弁理士 井 上 ４ＪＩＬ 生第１０図
第１３図Figure 1 is an explanatory diagram showing an example of a combination mold, and Figure 2 is an explanatory diagram showing an example of a combination mold.
J (an explanatory diagram of a slab that has been modified, Figure 3 is an explanatory diagram of a slab whose width has been changed, Figures 4 to 6 are explanatory diagrams of the conventional width 0 (changing means), and Figure 7 is an explanatory diagram of a slab of the present invention. FIG. 8 is an explanatory diagram showing another example of the width-changing slab, and FIGS. 9, 11, and 12 are diagrams showing the width u( 10 and 13 are block diagrams illustrating an embodiment of the measurement plan reorganization when the abnormality is detected. 1. ... Combination mold, 2... Long side piece, No. 3... Short side piece, 4... Drive device, 5... Width control device, 6...
(Slab) width changing device, 7... Slab, 70...-width changing section, 700... Unit slab, 700xφ/Φ width changing slab, ? OA, 70B...Truncation part, 8...Tandish, No. 9 Molten steel, 11...Drawer guide roll, 1
1a*...pinch roller, 1211...cutting device, 13
- One end heating device, 14...0 width reduction device, 15...
Rolling equipment, 16Φ... Production planning command device, 17..
・Abnormality detection device, 20...Next process control device, 3o11
1111 Casting direction. Patent Applicant Nippon Steel Corporation Agent Patent Attorney Masaru Inoue Figure 1 7 Figure 2 (a) (b) Figure 3 Figure 4 Figure 5 Figure 8 Figure 9 Figure 10 Figure 11 Figure 13 Procedural amendments November 2, 1980 Kazuo Wakasugi, Commissioner of the Japan Patent Office1, Indication of the case, Patent Application No. 187018 of 19872, Name of the invention Continuous casting device with variable slab width 3, Amendments made Relationship with the Patent Case Patent Applicant Address 2-6-3 Otemachi, Chiyoda-ku, Tokyo Name
(665) Nippon Steel Corporation Representative Takeshi 1) Yutaka [8 Agent 103 Address Japan W 2-2-1 Kyodo Building, Chuo-ku, Tokyo (
Gofukubashi) 5. Date of amendment order Voluntary 6. Number of inventions increased by amendment None 1) "From point X" in the first line of specification 1132 is corrected to "from point X." (2) In the third line from the bottom of page 11, "Unable to roll down" is corrected to "Unable to roll down." (3) On page 12, lines 2 and 5, and on line 13, line 10.14.15, and line 188, "product" is corrected to "finished product." (4) Figures 10 and 13 of the drawings will be corrected as shown in the attached sheet. ("Product" in the diagram has been corrected to "finished product.")
Agent Patent Attorney Inoue 4JIL Figure 10 Figure 13
Claims (1)
れた短辺片からなる組合せ鋳型を備えた鋳片幅可変連続
鋳造装置において、生産計画指令装置からの採寸計画指
令信号により鋳片幅変更装置に鋳片幅制御信号を与え、
さらに鋳片幅測定装置からの鋳片幅検出信号と生産計画
指令信号との照合を行い鋳片切断装置に切断指令信号を
与えると共に、異常検出装置からの入力信号および次工
程制御装置からの生産異常入力信号からエネルギーロス
および歩留りロスが最小となる採寸計画再編成を行い、
鋳片幅変更と切断指令変更を行う総合演算制御装置を備
えたことを特徴とする鋳片幅可変連続鋳造装置。In a continuous casting device with a variable slab width equipped with a combination mold consisting of a fixedly supported long side piece and a short side piece slidably inserted between the long side pieces, a measuring plan command signal from a production planning command device is used. gives a slab width control signal to the slab width changing device,
Furthermore, the slab width detection signal from the slab width measuring device is compared with the production planning command signal, and a cutting command signal is given to the slab cutting device. Reorganize the measurement plan to minimize energy loss and yield loss based on the abnormal input signal,
A continuous casting device with variable slab width, characterized by being equipped with a comprehensive calculation and control device that changes slab width and cutting commands.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18701883A JPS6082252A (en) | 1983-10-07 | 1983-10-07 | Continuous casting device for billet with variable width |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18701883A JPS6082252A (en) | 1983-10-07 | 1983-10-07 | Continuous casting device for billet with variable width |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6082252A true JPS6082252A (en) | 1985-05-10 |
Family
ID=16198754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18701883A Pending JPS6082252A (en) | 1983-10-07 | 1983-10-07 | Continuous casting device for billet with variable width |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6082252A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009285699A (en) * | 2008-05-30 | 2009-12-10 | Kobe Steel Ltd | Method of appropriating continuous cast slab |
| CN106270435A (en) * | 2015-05-21 | 2017-01-04 | 上海梅山钢铁股份有限公司 | Reducing sheet billet continuous casting adjusts wide base to cut the method adjusting width and cutting to optimize of damage |
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|---|---|---|---|---|
| JPS5695456A (en) * | 1979-12-28 | 1981-08-01 | Kawasaki Steel Corp | Ingot cutting method in continuous casting |
| JPS57115957A (en) * | 1981-01-07 | 1982-07-19 | Hitachi Ltd | Method for controlling cutting of ingot in multistrand continuous casting installation |
| JPS5829559A (en) * | 1981-08-14 | 1983-02-21 | Hitachi Ltd | Continuous casting installation |
-
1983
- 1983-10-07 JP JP18701883A patent/JPS6082252A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5695456A (en) * | 1979-12-28 | 1981-08-01 | Kawasaki Steel Corp | Ingot cutting method in continuous casting |
| JPS57115957A (en) * | 1981-01-07 | 1982-07-19 | Hitachi Ltd | Method for controlling cutting of ingot in multistrand continuous casting installation |
| JPS5829559A (en) * | 1981-08-14 | 1983-02-21 | Hitachi Ltd | Continuous casting installation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009285699A (en) * | 2008-05-30 | 2009-12-10 | Kobe Steel Ltd | Method of appropriating continuous cast slab |
| CN106270435A (en) * | 2015-05-21 | 2017-01-04 | 上海梅山钢铁股份有限公司 | Reducing sheet billet continuous casting adjusts wide base to cut the method adjusting width and cutting to optimize of damage |
| CN106270435B (en) * | 2015-05-21 | 2018-04-24 | 上海梅山钢铁股份有限公司 | Reduce the wide method with cutting optimization of tune that the wide base of sheet billet continuous casting tune cuts damage |
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