JP2002316246A - Unit and method for controlling cut length of cast slab - Google Patents

Unit and method for controlling cut length of cast slab

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Publication number
JP2002316246A
JP2002316246A JP2001119177A JP2001119177A JP2002316246A JP 2002316246 A JP2002316246 A JP 2002316246A JP 2001119177 A JP2001119177 A JP 2001119177A JP 2001119177 A JP2001119177 A JP 2001119177A JP 2002316246 A JP2002316246 A JP 2002316246A
Authority
JP
Japan
Prior art keywords
cutting
slab
length
cut
value
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
Application number
JP2001119177A
Other languages
Japanese (ja)
Inventor
Shinichi Miyazaki
晋一 宮崎
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP2001119177A priority Critical patent/JP2002316246A/en
Publication of JP2002316246A publication Critical patent/JP2002316246A/en
Pending legal-status Critical Current

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  • Continuous Casting (AREA)

Abstract

PROBLEM TO BE SOLVED: To avoid surplus of a cast slab by reflecting measured length information and weighing information in each of a plurality of cast slab cut-off processes to the other process except this cut-off process. SOLUTION: In a production of the cast slab having the cut-off processes with a primary torch 1a, a refining torch 3a and a saw, the information needed to a cutting control in each cut-off process is collected with a data collecting unit 17, and a cut-off correcting value (cut-off size 2d needed to the primary torch 1a) is calculated with a calculating function part in the data collecting unit 17 from the actual cut-off value in a long cast slab 2a after cutting off with the primary torch 1a and the whole length measured value of the long cast slab 2a at the finishing (cut-off) process 3. A continuous casting process computer 11 corrects the cut-off planning length of the long cast slab 2a with the primary torch 1a in a continuous casting process 1 based on this cut-off correcting value. The surplus before rolling can be prevented from happening, and the developing state of the surplus can be always caught in each process, and when the problem happens, the man-hour for investigating the cause can be reduced.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、複数の切断工程を
有する鋳片の製造において、鋳片の切断長さを制御する
ための装置及びこの装置を用いて鋳片の切断長さを制御
する方法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for controlling a cutting length of a slab and a method of controlling the cutting length of the slab using the apparatus in the production of a slab having a plurality of cutting steps. It is about the method.

【0002】[0002]

【従来の技術】例えば連続鋳造工程1において1次トー
チで切断した後の長尺鋳片2aを、精整(切断)工程3
で2〜3本の中尺鋳片2bに精整トーチにより切断し、
さらに圧延前工程4でこの中尺鋳片2bを2〜3本の短
尺鋳片2cに鋸で切断するような複数の切断工程を備え
た、図5に示したような製造設備において、最終圧延前
に何らかの原因で短尺鋳片2cが所望の切断長さの許容
誤差範囲を超えているか、または、秤量値の許容誤差範
囲を超えている場合には、当該短尺鋳片2cは余剰鋳片
とされ、製品の納期割れ、生産歩留り悪化などの阻害を
引き起こしてしまう。
2. Description of the Related Art For example, in a continuous casting process 1, a long cast piece 2a cut by a primary torch is subjected to a refinement (cutting) process 3.
Cut into 2 to 3 medium-sized slabs 2b with a refining torch,
Further, in a manufacturing facility as shown in FIG. 5, a plurality of cutting steps for cutting the medium-sized slab 2b into two or three short slabs 2c with a saw in a pre-rolling step 4 are performed. If the short slab 2c exceeds the permissible error range of the desired cutting length or exceeds the permissible error range of the weighing value for some reason before, the short slab 2c is regarded as an excess slab. As a result, the delivery time of the product is broken, and the production yield is deteriorated.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、その原
因究明に必要な、各工程における鋳片の切断長さや秤量
値などのデータは、膨大な製造データの中に埋もれてい
るため、手作業でのデータ収集・整理には長時間を要し
てしまう。
However, since data such as the cutting length and weighing value of the slab in each process necessary for investigating the cause is buried in a huge amount of manufacturing data, it is necessary to perform manual operations. It takes a long time to collect and organize data.

【0004】また、切断長さの誤差を補正する方法とし
ては、連続鋳造設備内の1次トーチ切断機能を1次トー
チ切断後の秤量値により補正する方法などが広く知られ
ているが、精整工程における精整トーチ切断や圧延工程
前の鋸切断といった複数の切断工程を有する場合には、
精整トーチ切断及び鋸切断時の測長や秤量実績を用いて
上流側の切断長さの誤差を自動的に補正することを目的
としたシステム環境は一般的には構築されていない。
As a method of correcting a cutting length error, a method of correcting a primary torch cutting function in a continuous casting facility by a weighing value after cutting the primary torch is widely known. If there are multiple cutting steps such as refining torch cutting in the setting step and saw cutting before the rolling step,
A system environment aiming at automatically correcting an error of the upstream cutting length by using the length measurement and the weighing result at the time of the torch cutting and the saw cutting is not generally constructed.

【0005】すなわち、現在は、鋳片の生成から圧延ま
での鋳片切断長さについて高精度管理に特化したシステ
ム環境は、一般的には構築されていないので、鋳片の切
断精度が悪化した場合、その原因究明や対策には長時間
を要することになる。
[0005] That is, at present, a system environment dedicated to high-precision control of the slab cutting length from the slab production to the rolling is not generally constructed. In that case, it takes a long time to investigate the cause and take countermeasures.

【0006】本発明は、上記した従来の問題点に鑑みて
なされたものであり、複数の鋳片切断工程を有する設備
において、各切断工程における測長情報や秤量情報を当
該切断工程以外にも反映させ、各々の切断機能を最適に
補正することにより鋳片の余剰化を回避できる鋳片の切
断長さ制御装置及びこの装置を用いた制御方法を提供す
ることを目的としている。
The present invention has been made in view of the above-mentioned conventional problems. In equipment having a plurality of slab cutting steps, length measuring information and weighing information in each cutting step are used in addition to the cutting step. It is an object of the present invention to provide a slab cutting length control device capable of avoiding excess slabs by reflecting each of the cutting functions and optimally correcting each cutting function, and a control method using the device.

【0007】[0007]

【課題を解決するための手段】上記した目的を達成する
ために、本発明に係る鋳片の切断長さ制御装置は、各切
断工程における切断管理に必要な情報を収集するための
第1の手段と、ある切断工程の後の鋳片の切断実績より
切断補正値を演算する第2の手段と、この第2の手段に
より求めた切断補正値に基づき、ある切断工程の鋳片の
切断計画長さ若しくは鋳片の測長誤差を補正する第3の
手段を備えたこととしている。
In order to achieve the above object, a slab cutting length control apparatus according to the present invention comprises a first slab cutting length control apparatus for collecting information necessary for cutting management in each cutting step. Means, a second means for calculating a cutting correction value from the actual cutting results of the slab after a certain cutting step, and a plan for cutting a slab in a certain cutting step based on the cutting correction value obtained by the second means. Third means for correcting a length measurement error of the length or the slab is provided.

【0008】また、本発明に係る鋳片の切断長さ制御方
法は、第1の手段で収集したある切断工程での鋳片の
切断実績長さと、この切断鋳片の測長実績値より、第2
の手段で前記ある切断工程での切代長さを求め、この求
めた切代長さに基づき、第3の手段で前記ある切断工程
での鋳片の切断長さを補正したり、第1の手段で収集
したある切断工程での鋳片の切断前の実績長さと、切断
後の鋳片の測長実績値及び/又は秤量実績値より、第2
の手段で切断後の測長誤差及び切断補正値、或いは、前
記ある切断工程前での切代長さを求め、この求めた測長
誤差及び切断補正値、或いは、切代長さに基づき、第3
の手段で前記ある切断工程前の測長機能或いは切断計画
長さを補正することとしている。
Further, the method for controlling the cutting length of a slab according to the present invention is based on the actual cutting length of the slab in a certain cutting step collected by the first means and the actual measurement value of the cutting slab. Second
The cutting length in the certain cutting step is obtained by the means, and the cutting length of the slab in the certain cutting step is corrected by the third means based on the obtained cutting length, From the actual length before cutting of the slab in a certain cutting step collected by the means of the above and the actual measurement value and / or weighing value of the slab after cutting, the second
The length measurement error and the cut correction value after cutting by means of, or the cut length before the certain cutting step is determined, based on the obtained length measurement error and the cut correction value, or the cut length, Third
Means for correcting the length measuring function or the planned cutting length before the certain cutting step.

【0009】そして、このようにすることで、各切断工
程における測長情報や秤量情報を当該切断工程以外にも
反映させ、各々の切断機能を最適に補正することができ
るようになる。
[0009] By doing so, the length measurement information and the weighing information in each cutting step can be reflected in other than the cutting step, and each cutting function can be optimally corrected.

【0010】[0010]

【発明の実施の形態】例えば連続鋳造時における1次ト
ーチ切断後の長尺鋳片を次の精整(切断)工程で2〜3
本の中尺鋳片に精整トーチ切断し、さらに次の圧延前工
程で中尺鋳片を2〜3本の短尺鋳片に鋸切断するといっ
た、複数の切断工程を有する鋳込みから圧延までの一連
の設備において、圧延の直前で余剰化が発生した場合の
原因究明方法としては、例えば次のような方法がある。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS For example, a long cast slab after cutting a primary torch in continuous casting is used in the next refining (cutting) step in a few steps.
From the casting to the rolling, which has a plurality of cutting steps, such as cutting the refined torch into a medium-sized slab and further sawing the medium-sized slab into two or three short slabs in the next pre-rolling step. In a series of facilities, as a method of investigating the cause when surplus occurs immediately before rolling, for example, the following method is available.

【0011】すなわち、対象とする鋼種と鋳込みサイズ
における当該鋳片(数十本分)の長尺鋳片から中尺鋳
片、及び、中尺鋳片から短尺鋳片へのN回切断(N=1
以上)における1〜(N+1)本目の切断実績につい
て、その分布を評価するなどの方法をとり、その誤差傾
向を解析するなどである。
[0011] That is, in the target steel type and casting size, the slab (several tens) of the slab is cut from long slab to medium slab and from medium slab to short slab N times (N times). = 1
For the first to (N + 1) -th cutting results in the above), a method of evaluating the distribution or the like is taken, and the error tendency is analyzed.

【0012】この場合の誤差原因としては中間工程であ
る精整(切断)工程の測長機の測長精度などに問題があ
る場合が多く、測長開始点のずれや測長機の経時劣化な
どが原因となりうる。
[0012] In this case, there are many problems in the accuracy of length measurement of the length measuring machine in the refining (cutting) process, which is an intermediate process, and there are many problems, such as a shift in the measurement start point and deterioration of the length measuring machine with time. And so on.

【0013】そこで、本発明では、鋳造〜切断〜圧延に
おける鋳片データのうち切断長さ制御に必要なものを一
貫して管理すると共に、各切断工程における切断誤差を
算出し、次回以降の鋳片切断に反映させるようなシステ
ム環境を構築し、切断長さ精度の悪化を未然に防止でき
るようにすることにした。
Therefore, in the present invention, among the slab data in casting to cutting to rolling, data necessary for controlling the cutting length are consistently managed, and a cutting error in each cutting step is calculated, so that the next and subsequent casting steps are performed. We decided to construct a system environment that reflects the one-sided cutting so that the cutting length accuracy can be prevented from deteriorating.

【0014】すなわち、本発明に係る鋳片の切断長さ制
御装置は、複数の切断工程を有する鋳片の製造におい
て、各切断工程における切断管理に必要な情報を収集す
るための第1の手段と、ある切断工程の後の鋳片の切断
実績より切断補正値を演算する第2の手段と、この第2
の手段により求めた切断補正値に基づき、ある切断工程
の鋳片の切断計画長さ若しくは鋳片の測長誤差を補正す
る第3の手段を備えたものである。
That is, the apparatus for controlling the cutting length of a slab according to the present invention is a first means for collecting information necessary for cutting management in each cutting step in the production of a slab having a plurality of cutting steps. A second means for calculating a cutting correction value from the actual cutting performance of the slab after a certain cutting step;
And a third means for correcting a planned cutting length of a slab in a certain cutting step or a length measurement error of the slab based on the cutting correction value obtained by the means.

【0015】そして、このような構成の本発明に係る鋳
片の切断長さ制御装置を用いて、第1の手段で収集し
たある切断工程での鋳片の切断実績長さと、この切断鋳
片の測長実績値より、第2の手段で前記ある切断工程で
の切代長さを求め、この求めた切代長さに基づき、第3
の手段で前記ある切断工程での鋳片の切断長さを補正し
たり、第1の手段で収集したある切断工程での鋳片の
切断前の実績長さと、切断後の鋳片の測長実績値及び/
又は秤量実績値より、第2の手段で切断後の測長誤差及
び切断補正値、或いは、前記ある切断工程前での切代長
さを求め、この求めた測長誤差及び切断補正値、或い
は、切代長さに基づき、第3の手段で前記ある切断工程
前の測長機能或いは切断計画長さを補正する。これが本
発明に係る鋳片の切断長さ制御方法である。
Then, using the slab cutting length control apparatus according to the present invention having such a configuration, the actual cutting length of the slab in a certain cutting step collected by the first means, The length of the cut in the certain cutting step is determined by the second means from the actual measurement value of the length, and the third length is determined based on the determined length of the cut.
Means to correct the cut length of the slab in the certain cutting step, or the actual length of the slab before cutting in the certain cutting step collected by the first means, and the length measurement of the slab after cutting Actual value and / or
Or, from the actual weighing value, the length measurement error and the cut correction value after cutting by the second means, or the cutting length before the certain cutting step is obtained, and the obtained length measurement error and the cut correction value, or Based on the cutting length, the third means corrects the length measurement function or the planned cutting length before the certain cutting step. This is the method for controlling the cutting length of a slab according to the present invention.

【0016】上記した本発明によれば、鋳片の切断誤差
や秤量誤差を例えば連続鋳造工程及び精整(切断)工程
の切断計画機能及び切断時測長に基づいて補正すること
ができ、圧延前での余剰化を未然に防止することができ
るようになる。
According to the present invention described above, a cutting error and a weighing error of a slab can be corrected based on, for example, a cutting planning function in a continuous casting process and a refining (cutting) process and a length measurement at the time of cutting. It is possible to prevent surplus before it occurs.

【0017】さらに、本発明に係る鋳片の切断長さ制御
装置において、各工場に収集データを表示及び印刷す
る、或いは、表示又は印刷する端末を設置した場合に
は、各工程の作業者による日常的な精度管理を実施でき
るような環境が提供できるようになる。
Further, in the slab cutting length control apparatus according to the present invention, if a terminal for displaying and printing collected data or installing or displaying or printing the collected data is installed at each factory, the operator of each process may use the terminal. An environment in which daily quality control can be performed can be provided.

【0018】[0018]

【実施例】以下、本発明に係る鋳片の切断長さ制御装置
及びその方法を図1〜図4に示す実施例に基づいて説明
する。図1は本発明に係る鋳片の切断長さ制御装置の一
実施例を示す概略構成図、図2〜図3は本発明に係る鋳
片の切断長さ制御装置を用いた本発明に係る鋳片の切断
長さ制御方法の第1〜第3実施例の補正のフローを示し
た図である。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An apparatus and a method for controlling a cutting length of a slab according to the present invention will be described below with reference to the embodiments shown in FIGS. FIG. 1 is a schematic configuration diagram showing one embodiment of a slab cutting length control device according to the present invention, and FIGS. 2 to 3 relate to the present invention using the slab cutting length control device according to the present invention. It is the figure which showed the flow of the correction of the 1st-3rd Example of the cutting length control method of a slab.

【0019】図1は例えば連続鋳造工程、精整(切断)
工程及び圧延前工程からなる設備を用いて鋳片を製造す
る場合において適用する、本発明に係る鋳片の切断長さ
制御装置の一実施例を示す概略構成図で、各々の工程に
対してプロセスコンピュータ(以下、「プロコン」と言
う)11〜13が設置されている。
FIG. 1 shows, for example, a continuous casting process, refinement (cutting).
Applied in the case of manufacturing a slab using equipment consisting of a process and a pre-rolling process, a schematic configuration diagram showing an embodiment of a slab cutting length control device according to the present invention, for each process Process computers (hereinafter, referred to as “processor computers”) 11 to 13 are installed.

【0020】そして、前記した工程のうち連続鋳造工程
では、鋳片を連続鋳造した後1次トーチにより切断する
ことで長尺鋳片を生成し、また、精整(切断)工程では
前記した長尺鋳片を精整トーチで切断し、また、圧延前
工程では鋸による切断で短尺化した後、次の圧延工程に
送る。これら各工程のプロコン11〜13は例えば所内
LAN14,15を介して製造実績を生産管理コンピュ
ータ(以下、「ビジコン」と言う)16に伝送するよう
になっている。
In the continuous casting step of the above-mentioned steps, the cast piece is continuously cast and then cut by a primary torch to produce a long cast piece. The cast slab is cut with a precision torch, and in a pre-rolling process, cut into a shorter length by cutting with a saw, and then sent to the next rolling process. The process controllers 11 to 13 in each of these steps transmit production results to a production management computer (hereinafter referred to as a “vidicon”) 16 via, for example, in-house LANs 14 and 15.

【0021】本発明に係る鋳片の切断長さ制御装置で
は、上記した所内LAN14,15に、例えばデータ収
集装置17を接続し、ビジコン16への実績伝送とは別
に各プロコン11〜13から切断長さの管理に必要な鋳
片データを収集するのである。そして、このデータ収集
装置17は、例えば、図示省略したが、データの収集
機能部、データの蓄積機能部(データベース)、デ
ータ(誤差)比較の計算機能部(傾向計算)、表示印
刷機能部、各プロコン11〜13との送受信や上記各
機能を制御するための機能統括部を備えている。
In the apparatus for controlling the cutting length of a slab according to the present invention, for example, a data collection device 17 is connected to the above-mentioned local LANs 14 and 15 and cut off from each of the process controllers 11 to 13 separately from the actual transmission to the vidicon 16. It collects the slab data necessary for length management. The data collection device 17 includes, for example, a data collection function unit, a data accumulation function unit (database), a data (error) comparison calculation function unit (trend calculation), a display printing function unit, although not shown. A function supervision unit for controlling transmission / reception with each of the process controllers 11 to 13 and the above functions is provided.

【0022】なお、この鋳片データの収集はビジコン1
6から行っても良く、また、上記したのデータ(誤
差)比較の計算機能部(傾向計算)等は、データ収集装
置17以外の制御部に設けても良い。
The slab data was collected on the vidicon 1
6 may be performed, and the above-described data (error) comparison calculation function unit (trend calculation) may be provided in a control unit other than the data collection device 17.

【0023】データ収集装置17に収集される鋳片の切
断長さの管理に必要なデータの例としては例えば下記の
項目が挙げられる。 連続鋳造工程1:鋳片番号、鋼種、鋳込みストランド番
号、切断指示値、測長切断値、秤量値、トーチ使用回
数、切断時刻、鋳込み部位等
Examples of data necessary for managing the cut length of the slab collected by the data collection device 17 include the following items. Continuous casting process 1: Slab number, steel type, casting strand number, cutting instruction value, length measurement cutting value, weighing value, number of torch use, cutting time, casting location, etc.

【0024】精整(切断)工程3:現品識別結果、全長
測長値、切断計画(取り合せ)計算結果、切断実績値、
発送実績、トーチ使用回数等
Refining (cutting) step 3: actual product identification result, total length measurement value, cutting plan (combination) calculation result, actual cutting value,
Shipment results, torch use frequency, etc.

【0025】圧延前工程4:現品識別結果、鋸切断長
値、秤量値、余剰化実績等
Pre-rolling process 4: Actual product identification result, saw cutting length value, weighing value, surplus performance, etc.

【0026】本発明に係る鋳片の切断長さ制御装置で
は、各プロコン11〜13からデータ収集装置17に収
集した鋳片データを用いてこのデータ収集装置17の計
算機能部で計算した切断補正値を、例えば連続鋳造プロ
コン11及び精整(切断)プロコン12へ送信する。そ
して、連続鋳造プロコン11及び精整(切断)プロコン
12ではそれぞれ受信した情報を例えば切断時測長にお
ける補正に用いるのである。
In the slab cut length control device according to the present invention, the cut correction calculated by the calculation function unit of the data collection device 17 using the slab data collected in the data collection device 17 from each of the computers 11 to 13. The value is transmitted to, for example, the continuous casting process control 11 and the refining (cutting) process control 12. Then, the continuous casting process control 11 and the refining (cutting) process control 12 use the received information for, for example, correction in the length measurement at the time of cutting.

【0027】図1に示した実施例では、さらに、各工程
工場にデータの表示印刷端末18〜20を設置し、これ
らを所内LAN14,15に接続することにより、各プ
ロコン11〜13から収集したデータや計算した切断誤
差データを表示し、帳票として印刷できるようにしたも
のを示している。
In the embodiment shown in FIG. 1, data display and printing terminals 18 to 20 are installed at each process factory and connected to the in-house LANs 14 and 15 to collect data from each of the process controllers 11 to 13. This shows data and calculated cutting error data that can be printed as a form.

【0028】これらデータの表示印刷端末18〜20に
表示したり印刷したりする内容としては、例えば、1)
鋼種や鋳込みサイズ毎の各鋳片測長値の比較、2)鋼種
や鋳込みサイズ毎の測長値と秤量値との比較、3)鋼種
や鋳込みサイズ毎のトーチ火口溶損速度の計算(切代計
算)、4)鋼種や切断何本目かなどのカテゴリ別による
誤差分布や時系列、などである。
The contents of displaying and printing these data on the display / print terminals 18 to 20 include, for example, 1)
Comparison of measured length of each slab for each steel type and casting size, 2) Comparison of measured value and weighing value for each steel type and casting size, 3) Calculation of torch crater erosion rate for each steel type and casting size (cut off) 4) Error distribution and time series by category such as steel type and number of cuts.

【0029】次に、上記した本発明に係る鋳片の切断長
さ制御装置を用いた本発明に係る鋳片の切断長さ制御方
法について説明する。
Next, a method for controlling a cutting length of a slab according to the present invention using the apparatus for controlling a cutting length of a slab according to the present invention will be described.

【0030】(実施例1)1次トーチ1aの切代2dを
補正する場合(図2参照) 連続鋳造工程1での1次トーチ1aによる長尺鋳片2a
の熱間切断実績値を取り込んだ連続鋳造プロコン11
と、精整(切断)工程3での長尺鋳片2aの全長測長値
を取り込んだ精整(切断)プロコン12とから、これら
の鋳片データを収集したデータ収集装置17は、熱間長
に変換した長さを切断時刻順に比較することにより、連
続鋳造設備内の1次トーチ1aの火口の拡大量、すなわ
ち、鋳片の切代拡大量の現在値を回帰的に算出する。
(Embodiment 1) In the case of correcting the cut 2d of the primary torch 1a (see FIG. 2) The long cast piece 2a by the primary torch 1a in the continuous casting process 1
Continuous casting process control 11 incorporating actual hot cutting results
The data collection device 17 that collects these slab data from the rectifying (cutting) process controller 12 that captures the full length measurement value of the long cast slab 2a in the rectifying (cutting) step 3 By comparing the lengths converted into the lengths in the order of the cutting time, the enlargement amount of the crater of the primary torch 1a in the continuous casting facility, that is, the current value of the cut-off enlargement amount of the slab is recursively calculated.

【0031】データ収集装置17は、上記したように算
出した1次トーチ1aの切代2dを連続鋳造プロコン1
1へ送信し、連続鋳造プロコン11では受信した切代2
dの長さを切断計画(切断取合せ)に反映できるように
する。これが請求項2に対応する本発明に係る鋳片の切
断長さ制御方法の実施例である。
The data collecting device 17 applies the cutting margin 2d of the primary torch 1a calculated as described above to the continuous casting process control 1
1 and received by the continuous casting process control 11
The length of d can be reflected in the cutting plan (cutting arrangement). This is an embodiment of a method for controlling a cutting length of a slab according to the present invention.

【0032】(実施例2)精整(切断)工程3の測長機
を補正する場合(図3参照) データ収集装置17は、圧延前の短尺鋳片2cの全長測
長値又は短尺鋳片2cの秤量値から換算した短尺鋳片2
cの全長に、鋸切断の切代2fを加えた長さから、精整
(切断)工程3の精整トーチ3aによる切断N本目(N
=1〜)の換算鋳片長を算出し、これを精整(切断)工
程3の切断実績と比較することにより得られる測長誤差
補正値を求める。
(Embodiment 2) In the case of correcting the length measuring machine in the refining (cutting) step 3 (see FIG. 3), the data collecting device 17 measures the total length of the short slab 2c before rolling or the short slab. Short slab 2 converted from the weighed value of 2c
From the length obtained by adding the cutting allowance 2f for saw cutting to the entire length of c, the N-th cut (N) using the refining torch 3a in the refining (cutting) step 3
= 1) is calculated, and this is compared with the actual cutting result in the refining (cutting) step 3 to obtain a length measurement error correction value.

【0033】データ収集装置17は算出した測長誤差補
正値を精整(切断)プロコン12へ送信し、精整(切
断)プロコン12では受信した測長誤差補正値を用いて
精整トーチ3aを備えた切断機における測長を補正す
る。
The data collecting device 17 transmits the calculated length measurement error correction value to the adjusting (cutting) process controller 12, and the adjusting (cutting) process controller 12 controls the adjusting torch 3a using the received length measuring error correction value. Correct the length measurement in the equipped cutting machine.

【0034】例えば、中尺鋳片2bを2本の短尺鋳片2
cに切断する場合、前述の換算長が精整(切断)工程3
の切断実績と比ベ1本目が長く2本目が短い場合、精整
(切断)工程3のトーチ測長機での測長開始時に測長で
きていない部分が発生していることが判るので、トーチ
測長開始時、上記から得られる測長誤差を補正できるよ
うにする等である。
For example, the medium slab 2b is replaced with two short slabs 2
In the case of cutting into c, the aforementioned converted length is adjusted (cut) step 3
If the first record is longer than the second record and the second record is shorter, it is known that a part that could not be measured has occurred at the start of length measurement with the torch length measuring machine in the refining (cutting) step 3. At the start of the torch length measurement, the length measurement error obtained from the above can be corrected.

【0035】(実施例3)精整(切断)工程3の切断切
代の補正(図4参照) 精整(切断)工程3において例えば長尺鋳片2aから3
本の中尺鋳片2bに切断する場合で、かつ、精整トーチ
3aを備えた切断機が直列に2台存在する場合、1台目
の切断機から2台目の切断機間の距離はパルスカウンタ
等で計測されるので、3本取りした内の2本目の中尺鋳
片2bの測長は殆ど誤差が発生しない。
(Embodiment 3) Correction of the cutting allowance in the refining (cutting) step 3 (see FIG. 4) In the refining (cutting) step 3, for example, the long cast pieces 2a to 3 are used.
In the case of cutting into a medium-sized slab 2b and when there are two cutting machines equipped with the refining torch 3a in series, the distance between the first cutting machine and the second cutting machine is Since the measurement is performed by a pulse counter or the like, there is almost no error in the measurement of the length of the second medium-sized cast slab 2b out of the three taken.

【0036】従って、3本取りの2本目について圧延前
における短尺鋳片2cの測長値又は短尺鋳片2cの秤量
値からの換算短尺長に、鋸切断の切代2fを加えた長さ
が、精整(切断)工程3の2本目切断実績より時系列的
に短くなる場合は、1本目又は2本目の精整トーチ3a
のいずれかのトーチ火口が拡大し、切代2eが増加して
いると考えられる。
Accordingly, for the second of the three strips, the length obtained by adding the cutting allowance 2f for sawing to the converted short length from the measured value of the short cast piece 2c or the weighed value of the short cast piece 2c before rolling. If the second cutting result in the refining (cutting) step 3 becomes shorter in time series than the actual result, the first or second refining torch 3a
It is considered that one of the torch craters has expanded, and the cutting allowance 2e has increased.

【0037】そこで、データ収集装置17では、換算長
と卜ーチ測長値との誤差により卜ーチ切断取合わせの切
代を算出し、精整(切断)プロコン12へ送信し、精整
(切断)プロコン12では、受信した切代長さをトーチ
切断計画に反映できるようにする。
Therefore, the data collecting device 17 calculates a cutting allowance for torch cutting arrangement based on an error between the converted length and the torch measurement value, and transmits the calculated torch cutting (cutting) to the refinement (cutting) program controller 12. (Cutting) The process controller 12 allows the received cutting length to be reflected in the torch cutting plan.

【0038】[0038]

【発明の効果】以上説明したように、本発明によれば、
鋳片の切断誤差や秤量誤差を連続鋳造工程及び精整(切
断)工程の切断計画機能及び切断時測長に基づいて補正
することができるので、圧延前での余剰化を未然に防止
することができるようになる。また、余剰化発生状況を
各工程において日常的に把握することができ、問題発生
時、原因究明の工数を減少させることができるようにな
る。さらに、本発明に係る鋳片の切断長さ制御装置にお
いて、各工場に収集データを表示したり印刷したりする
端末を設置した場合には、各工程の作業者による日常的
な精度管理を実施できるような環境が提供できるように
なる。
As described above, according to the present invention,
The cutting error and weighing error of the slab can be corrected based on the cutting planning function of the continuous casting process and the refining (cutting) process and the length measurement at the time of cutting, so that it is possible to prevent excess before rolling. Will be able to Further, the surplus occurrence state can be grasped on a daily basis in each process, and when a problem occurs, the number of steps for investigating the cause can be reduced. Further, in the slab cutting length control device according to the present invention, when a terminal for displaying or printing collected data is installed at each factory, daily accuracy management by an operator of each process is performed. An environment that can be provided can be provided.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る鋳片の切断長さ制御装置の一実施
例を示す概略構成図である。
FIG. 1 is a schematic configuration diagram showing an embodiment of a slab cutting length control device according to the present invention.

【図2】本発明に係る鋳片の切断長さ制御装置を用いた
本発明に係る鋳片の切断長さ制御方法の第1実施例の補
正のフローを示した図である。
FIG. 2 is a diagram showing a correction flow of a first embodiment of a method for controlling a cutting length of a slab according to the present invention using the apparatus for controlling a cutting length of a slab according to the present invention.

【図3】本発明に係る鋳片の切断長さ制御装置を用いた
本発明に係る鋳片の切断長さ制御方法の第2実施例の補
正のフローを示したものである。
FIG. 3 shows a flow of correction in a second embodiment of a method for controlling a cutting length of a slab according to the present invention using the apparatus for controlling a cutting length of a slab according to the present invention.

【図4】本発明に係る鋳片の切断長さ制御装置を用いた
本発明に係る鋳片の切断長さ制御方法の第3実施例の補
正のフローを示したものである。
FIG. 4 shows a flow of correction in a third embodiment of a method for controlling a cutting length of a slab according to the present invention using the apparatus for controlling a cutting length of a slab according to the present invention.

【図5】鋳片が鋳造・切断された長尺から、精整(切
断)工程での中間切断、圧延用の短尺へと切断される工
程の例を示した図である。
FIG. 5 is a view showing an example of a process in which a cast slab is cut and cut into a short length for rolling and intermediate cutting in a refining (cutting) process from a long length cast and cut.

【符号の説明】[Explanation of symbols]

1 連続鋳造工程 1a 1次トーチ 3 精整(切断)工程 3a 精整トーチ 4 圧延前工程 11 連続鋳造プロコン 12 精整(切断)プロコン 13 圧延プロコン 17 データ収集装置 18 表示印刷端末 19 表示印刷端末 20 表示印刷端末 DESCRIPTION OF SYMBOLS 1 Continuous casting process 1a Primary torch 3 Refining (cutting) process 3a Refining torch 4 Pre-rolling process 11 Continuous casting process control 12 Refinement (cutting) process control 13 Rolling process control 17 Data collecting device 18 Display printing terminal 19 Display printing terminal 20 Display printing terminal

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 複数の切断工程を有する鋳片の製造にお
いて、各切断工程における切断管理に必要な情報を収集
するための第1の手段と、ある切断工程の後の鋳片の切
断実績より切断補正値を演算する第2の手段と、この第
2の手段により求めた切断補正値に基づき、ある切断工
程の鋳片の切断計画長さ若しくは鋳片の測長誤差を補正
する第3の手段を備えたことを特徴とする鋳片の切断長
さ制御装置。
In manufacturing a slab having a plurality of cutting steps, a first means for collecting information necessary for cutting management in each cutting step, and a result of cutting a slab after a certain cutting step. A second means for calculating a cutting correction value, and a third means for correcting a planned cutting length of a slab in a certain cutting step or a length measurement error of the slab based on the cutting correction value obtained by the second means. A slab cutting length control device characterized by comprising means.
【請求項2】 複数の切断工程を有する鋳片の製造にお
いて、第1の手段で収集したある切断工程での鋳片の切
断実績長さと、この切断鋳片の測長実績値より、第2の
手段で前記ある切断工程での切代長さを求め、この求め
た切代長さに基づき、第3の手段で前記ある切断工程で
の鋳片の切断長さを補正することを特徴とする請求項1
に記載の鋳片の切断長さ制御装置を用いた鋳片切断長さ
制御方法。
2. In the production of a slab having a plurality of cutting steps, a second actual value is obtained from the actual cutting length of the slab in a certain cutting step collected by the first means and the actual measurement value of the cut slab. The cutting length in the certain cutting step is obtained by the means, and the cutting length of the slab in the certain cutting step is corrected by the third means based on the obtained cutting length. Claim 1
A slab cutting length control method using the slab cutting length control device according to the above.
【請求項3】 複数の切断工程を有する鋳片の製造にお
いて、第1の手段で収集したある切断工程での鋳片の切
断前の実績長さと、切断後の鋳片の測長実績値及び/又
は秤量実績値より、第2の手段で切断後の測長誤差及び
切断補正値を求め、この求めた測長誤差及び切断補正値
に基づき、第3の手段で前記ある切断工程前の測長機能
を補正することを特徴とする請求項1に記載の鋳片切断
長さ制御装置を用いた鋳片の切断長さ制御方法。
3. In the manufacture of a slab having a plurality of cutting steps, the actual length of the slab before cutting in a certain cutting step collected by the first means, the measured length value of the slab after cutting, and And / or calculating the length measurement error and the cutting correction value after cutting by the second means from the actual weighing value, and measuring the measurement error before the certain cutting step by the third means based on the obtained measurement error and the cutting correction value. A method for controlling a cutting length of a slab using the slab cutting length control device according to claim 1, wherein the long function is corrected.
【請求項4】 複数の切断工程を有する鋳片の製造にお
いて、第1の手段で収集したある切断工程での鋳片の切
断前の実績長さと、切断後の鋳片の測長実績値及び/又
は秤量実績値より、第2の手段で前記ある切断工程前で
の切代長さを求め、この求めた切代長さに基づき、第3
の手段で前記ある切断工程前の切断計画長さを補正する
ことを特徴とする請求項1に記載の装置を用いた鋳片の
切断長さ制御方法。
4. In the production of a slab having a plurality of cutting steps, the actual length of the slab before cutting in a certain cutting step collected by the first means, the measured length value of the slab after cutting, and And / or calculating the cutting length before the certain cutting step by the second means from the actual weighing value, and determining the third cutting length based on the obtained cutting length.
2. The method according to claim 1, wherein the planned cutting length before the certain cutting step is corrected by means.
【請求項5】 鋳片の切断実績、切断工程の補正値を表
示及び/又は印字する端末を備えたことを特徴とする請
求項1に記載の鋳片の切断長さ制御装置。
5. The slab cutting length control device according to claim 1, further comprising a terminal for displaying and / or printing a slab cutting result and a correction value of the cutting process.
JP2001119177A 2001-04-18 2001-04-18 Unit and method for controlling cut length of cast slab Pending JP2002316246A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001119177A JP2002316246A (en) 2001-04-18 2001-04-18 Unit and method for controlling cut length of cast slab

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001119177A JP2002316246A (en) 2001-04-18 2001-04-18 Unit and method for controlling cut length of cast slab

Publications (1)

Publication Number Publication Date
JP2002316246A true JP2002316246A (en) 2002-10-29

Family

ID=18969436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001119177A Pending JP2002316246A (en) 2001-04-18 2001-04-18 Unit and method for controlling cut length of cast slab

Country Status (1)

Country Link
JP (1) JP2002316246A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538975A (en) * 2019-09-30 2019-12-06 阳春新钢铁有限责任公司 continuous casting billet sizing system based on cast-rolling linkage
CN113084109A (en) * 2021-02-21 2021-07-09 阳春新钢铁有限责任公司 Method for continuously correcting continuous casting infrared camera shooting sizing error on line
CN114746196A (en) * 2020-05-22 2022-07-12 东芝三菱电机产业***株式会社 Cutting position control device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110538975A (en) * 2019-09-30 2019-12-06 阳春新钢铁有限责任公司 continuous casting billet sizing system based on cast-rolling linkage
CN110538975B (en) * 2019-09-30 2020-05-15 阳春新钢铁有限责任公司 Continuous casting billet sizing system and sizing method based on casting and rolling linkage
CN114746196A (en) * 2020-05-22 2022-07-12 东芝三菱电机产业***株式会社 Cutting position control device
CN113084109A (en) * 2021-02-21 2021-07-09 阳春新钢铁有限责任公司 Method for continuously correcting continuous casting infrared camera shooting sizing error on line

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