JP2003215052A - Steel-plate inspection method and utilization method for electronic information - Google Patents
Steel-plate inspection method and utilization method for electronic informationInfo
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- JP2003215052A JP2003215052A JP2002015686A JP2002015686A JP2003215052A JP 2003215052 A JP2003215052 A JP 2003215052A JP 2002015686 A JP2002015686 A JP 2002015686A JP 2002015686 A JP2002015686 A JP 2002015686A JP 2003215052 A JP2003215052 A JP 2003215052A
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- defective portion
- steel sheet
- defect
- electronic information
- surface defect
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、鋼板検査方法およ
び電子情報の利用方法に係り、より詳しくは、例えば、
冷延鋼板、亜鉛メッキ鋼板などの鋼帯における鋼板の長
手方向における不良部の位置を電子情報として記録する
鋼板検査方法およびその電子情報の利用方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a steel plate inspection method and a method of using electronic information, and more specifically, for example,
The present invention relates to a steel sheet inspection method for recording the position of a defective portion in the longitudinal direction of a steel sheet in a steel strip such as a cold rolled steel sheet or a galvanized steel sheet as electronic information and a method of using the electronic information.
【０００２】[0002]
【従来の技術】冷延鋼板、亜鉛メッキ鋼板などの鋼帯に
は、その製造工程において、様々な原因により表面欠陥
が発生する。このような表面欠陥は、ユーザーの要求す
る品質（以下、「仕様」という）を満足することができ
ないため、製品としてユーザーに出荷する前に不良部と
して除去される。表面欠陥の検出は、各製造工程に配置
された検査員による目視検査、表面欠陥検出器による機
械検査、または両検査を併用することにより行われる。2. Description of the Related Art Surface defects such as cold rolled steel sheets and galvanized steel sheets are caused by various causes in the manufacturing process. Since such a surface defect cannot satisfy the quality (hereinafter referred to as “specification”) required by the user, it is removed as a defective portion before being shipped as a product to the user. The surface defects are detected by visual inspection by an inspector arranged in each manufacturing process, mechanical inspection by a surface defect detector, or a combination of both inspections.
【０００３】従来、検出された表面欠陥には、インクに
より検出箇所にマーキングを施す（特開平１１−３１９
９４３号公報、特開２０００−２４１３５８号公報など
参照）、または砥石により検出箇所にマーキングを施し
（特開２００１−７１２８３号公報、特開２００１−１
３７９４２号公報など参照）、このマーキングを目印と
して、不良部の検出箇所の識別をし、後の工程で不良部
を除去することが行われていた。Conventionally, the detected surface defect is marked with ink at the detection position (Japanese Patent Laid-Open No. 11-319).
943, JP-A-2000-241358, etc.) or marking is made on a detection point with a grindstone (JP-A-2001-71283, JP-A-2001-1).
(See Japanese Patent No. 37942, etc.), this marking is used as a mark to identify the detected portion of the defective portion and remove the defective portion in a subsequent process.
【０００４】しかしながら、近年では、中間ユーザーま
たはエンドユーザーでの作業効率や歩留まり向上を目的
に、表面欠陥を混入させたまま製品としての鋼帯を出荷
するケースが増加している。この場合には、上述のよう
なマーキングを施し、不良部の除去を行う方法は、ユー
ザー側でマーキングを目視確認するための人員が必要に
なる、またはマーキング検出器を設置する必要があり、
これらに伴うコスト増を招くことになるため、実際には
行われない。However, in recent years, in order to improve the work efficiency and yield of intermediate users or end users, the number of cases in which steel strips as products are shipped with surface defects mixed therein is increasing. In this case, applying the marking as described above, the method of removing the defective portion, the user will need personnel to visually confirm the marking, or it is necessary to install a marking detector,
This is not actually done because it will increase the costs associated with them.
【０００５】このため、サプライヤー側で表面欠陥の位
置情報を把握し、ユーザーに位置情報を書面で提出する
ことが行われる。しかしながら、このようにした場合に
は、サプライヤー側で書面を作成する作業が必要となる
一方、ユーザー側では、書面と鋼板を対比し、不良部を
確認しながら除去作業をする必要があるため、ユーザー
およびサプライヤーともに作業工数が増大する。この場
合、サプライヤーの情報の記載漏れや誤り、ユーザーの
見落としなどの人為的なミスによって表面欠陥が混入し
たまま、最終製品まで加工されてしまう恐れもある。For this reason, the supplier side grasps the position information of the surface defect and submits the position information to the user in writing. However, in such a case, the supplier side needs to create the document, while the user side needs to compare the document and the steel plate and confirm the defective portion to perform the removing work. Work man-hours increase for both users and suppliers. In this case, there is a possibility that the final product may be processed while surface defects are mixed due to human error such as omission or error of supplier information or user's oversight.
【０００６】[0006]
【発明が解決しようとする課題】近年では、表面欠陥の
位置などの情報を欠陥画像とともに電子情報として上位
コンピュータで集中管理することが行われるようになっ
た（特開平４−３０５１４７号公報、特開２０００−２
８５４７号公報など参照）。このため、前述した書類の
作成も、この電子情報に基づいて行うことができるた
め、人為的なミスは低減した。In recent years, information such as the position of a surface defect has been centrally managed by a host computer as electronic information together with the defect image (Japanese Patent Laid-Open No. 4-305147, Japanese Patent Laid-Open No. 4-305147). Open 2000-2
See Japanese Patent No. 8547). Therefore, the above-mentioned document can be created based on this electronic information, and human error is reduced.
【０００７】しかし、このような電子情報の集中管理
は、個別に表面欠陥に関する情報を単に蓄積しているだ
けであり、この情報にしたがい、除去すべき不良部の除
去を容易に行うものではない。すなわち、鋼板の仕様に
基づいて、表面欠陥毎に不良部となりえるか否かを判断
し、不良部となる場合、除去すべき鋼板の位置を表面欠
陥毎に判定しており、例えば、不良部となる表面欠陥が
連続している場合には、それらの表面欠陥を一度に除去
すればよいにもかかわらず、同一の除去作業を複数回行
うことがある。However, such centralized management of electronic information merely accumulates information regarding surface defects individually, and according to this information, it is not easy to remove defective portions to be removed. . That is, based on the specifications of the steel sheet, it is determined whether or not each surface defect can be a defective portion, and if it is a defective portion, the position of the steel sheet to be removed is determined for each surface defect. In the case where the surface defects to be formed are continuous, although the surface defects may be removed at once, the same removing operation may be performed multiple times.
【０００８】本発明の課題は、除去すべき表面欠陥を含
む不良部を確実に検出し、その不良部を効率よく除去す
るために、不良部の位置を電子情報として記録する鋼板
検査方法およびその電子情報の利用方法を提供すること
にある。An object of the present invention is to detect a defective portion including a surface defect to be removed with certainty and to efficiently remove the defective portion, and to record the position of the defective portion as electronic information, and a steel sheet inspection method thereof. It is to provide a method of using electronic information.
【０００９】[0009]
【課題を解決するための手段】本発明者は、不良部の除
去を効率よく行うために、除去すべき表面欠陥の検出位
置の関係について検討した。複数の除去すべき表面欠陥
により不良部が連続または重複して形成されている場合
には、これらを一度に除去することができる。また、複
数の不良部の間に存在する正常部が加工製品の長さに比
べて短い場合には、正常部はその加工製品の材料として
使用することはできない。すなわち、この正常部は実質
的な不良部であると考えることができるので、正常部を
含み複数の不良部を一挙に除去できる。The present inventor has examined the relationship between the detection positions of surface defects to be removed in order to efficiently remove defective portions. When defective portions are formed continuously or overlappingly due to a plurality of surface defects to be removed, these can be removed at once. Further, when the normal part existing between the plurality of defective parts is shorter than the length of the processed product, the normal part cannot be used as a material for the processed product. That is, since this normal part can be considered as a substantially defective part, a plurality of defective parts including the normal part can be removed at once.
【００１０】そして、以上のことを考慮の上、不良部を
特定して、除去する不良部の位置情報を電子情報として
記録し、それにしたがって、除去作業を行えば、より効
率的に除去作業を行うことができる。In consideration of the above, the defective portion is specified, the position information of the defective portion to be removed is recorded as electronic information, and the removing operation is performed according to the information, so that the removing operation can be performed more efficiently. It can be carried out.
【００１１】本発明は、上述の知見をもとに完成に至っ
たものであり、その要旨は、下記（１）および（２）を
特徴とする鋼板検査方法ならびに下記（３）を特徴とす
る電子情報の利用方法にある。The present invention has been completed based on the above findings, and its gist is characterized by a steel sheet inspection method characterized by the following (1) and (2) and the following (3). There is a method of using electronic information.
【００１２】（１）鋼板から除去すべき不良部を特定す
る鋼板検査方法であって、鋼板の仕様に基づいて、欠陥
検出器により除去すべき表面欠陥を検出し、各表面欠陥
の検出位置に基づいて、除去すべき不良部を特定して、
鋼板の長手方向における不良部の位置を算出し、その不
良部の位置を鋼板に付帯した電子情報として記録するこ
とを特徴とする鋼板検査方法。(1) A steel sheet inspection method for identifying a defective portion to be removed from a steel sheet, wherein a surface defect to be removed is detected by a defect detector based on the specifications of the steel sheet, and the detected position of each surface defect is determined. Based on that, identify the defective part to be removed,
A steel sheet inspection method, comprising: calculating a position of a defective portion in the longitudinal direction of the steel sheet and recording the position of the defective portion as electronic information attached to the steel sheet.
【００１３】（２）鋼板の長手方向における不良部の位
置とともに、その不良部に存在する表面欠陥の欠陥画像
および／または鋼板の表面欠陥の展開表を電子情報とし
て記録する（１）の鋼板検査方法
（３）（１）または（２）の鋼板検査方法により記録し
た電子情報を鋼板のユーザーに対し提供することを特徴
とする電子情報の利用方法。(2) Along with the position of the defective portion in the longitudinal direction of the steel sheet, a defect image of surface defects existing in the defective portion and / or a development table of the surface defects of the steel sheet are recorded as electronic information. Method (3) A method of using electronic information, characterized in that electronic information recorded by the steel sheet inspection method of (1) or (2) is provided to a user of the steel sheet.
【００１４】[0014]
【発明の実施の形態】本発明は、鋼板から除去すべき不
良部を特定する鋼板検査方法に関する発明である。ここ
で、鋼板とは、板状の鋼のことをいい、コイル状にした
鋼帯も含む。また、不良部とは、表面欠陥を含む鋼板の
一領域をいうが、表面欠陥の位置関係により、その定義
は異なるため、その詳細については、後述する図２に示
す。BEST MODE FOR CARRYING OUT THE INVENTION The present invention is an invention relating to a steel sheet inspection method for identifying a defective portion to be removed from a steel sheet. Here, the steel plate refers to a plate-shaped steel, and includes a coiled steel strip. Further, the defective portion refers to a region of a steel sheet including a surface defect, but the definition is different depending on the positional relationship of the surface defect, and the details thereof will be shown in FIG. 2 described later.
【００１５】図１は、本発明の鋼板検査方法を行うこと
ができる検査装置の一例を模式的に示した図である。連
続焼鈍設備や連続亜鉛メッキ設備などのプロセスライン
2では、搬送される鋼板に対し、検査員による目視検査
に加え、欠陥検出器3による光学的な機械検査が行われ
る。欠陥検出器3によって得られた表面欠陥に関する情
報は、電気信号として、欠陥情報処理部5に送られ、表
面欠陥毎に欠陥種類、欠陥等級などの弁別が行われる。FIG. 1 is a diagram schematically showing an example of an inspection apparatus capable of carrying out the steel plate inspection method of the present invention. Process lines such as continuous annealing equipment and continuous galvanizing equipment
In 2, in addition to the visual inspection by the inspector, the conveyed steel sheet is subjected to an optical mechanical inspection by the defect detector 3. The information on the surface defect obtained by the defect detector 3 is sent to the defect information processing unit 5 as an electric signal, and the defect type, the defect grade and the like are discriminated for each surface defect.
【００１６】一方、製造される鋼板の仕様に関するデー
タが、生産管理CPU8から操業管理CPU7を介して欠陥情報
処理部5へ伝送される。鋼板の仕様には、除去すべき表
面欠陥の判断基準が定められており、鋼板の仕様に基づ
いて、表面欠陥の弁別結果から、各表面欠陥が除去する
に値しない軽微な表面欠陥か、除去すべき表面欠陥かが
判断される。軽微な表面欠陥の場合には、実質的に表面
欠陥ではないと扱われ、除去すべき表面欠陥のみが検出
される。こうして検出された表面欠陥の検出位置に基づ
いて不良部が特定される。On the other hand, data relating to the specifications of the steel sheet to be manufactured is transmitted from the production management CPU 8 to the defect information processing section 5 via the operation management CPU 7. The steel plate specifications define the criteria for determining the surface defects to be removed.Based on the steel plate specifications, the surface defect discrimination results indicate that each surface defect is a minor surface defect that is not worth removing, or the surface defect is to be removed. It is determined whether the surface defect should be made. In the case of a minor surface defect, it is treated as substantially not a surface defect, and only the surface defect to be removed is detected. The defective portion is specified based on the detected position of the surface defect thus detected.
【００１７】図２は、鋼板上の表面欠陥とその表面欠陥
により特定される不良部を模式的に示した図である。表
面欠陥が単独で存在している場合、図２（１）に示すよ
うに、除去すべき表面欠陥の鋼板の長手方向の幅（ａ
１）に加え、材料切断時の切り代などを考慮し、任意の
幅（ａ２）をもたせた領域、すなわち、同図のＡ１で示
す領域が除去すべき不良部となる。FIG. 2 is a diagram schematically showing a surface defect on a steel sheet and a defective portion specified by the surface defect. When the surface defect exists alone, as shown in FIG. 2 (1), the width (a of the surface defect to be removed in the longitudinal direction of the steel sheet)
In addition to 1), a region having an arbitrary width (a2), that is, a region indicated by A1 in the figure is a defective portion to be removed in consideration of a cutting margin when cutting the material.
【００１８】また、複数の表面欠陥が存在し、それらの
鋼板長手方向の距離が短く、各表面欠陥による不良部が
重複する場合、図２（２）に示すように、各表面欠陥が
単独で存在していた場合の不良部（Ｂ２１、Ｂ２２）を
足した領域、すなわち同図のＡ２で示す領域が不良部と
なる。Further, when there are a plurality of surface defects, the distances between them in the longitudinal direction of the steel sheet are short, and the defective portions due to the respective surface defects overlap, as shown in FIG. A region obtained by adding the defective portions (B21, B22) when existing, that is, a region indicated by A2 in the figure is a defective portion.
【００１９】さらに、複数の表面欠陥が存在し、各表面
欠陥による不良部の間に存在する正常部が、加工製品の
材料として使用できない場合、図２（３）に示すよう
に、各表面欠陥が単独で存在していた場合の不良部（Ｂ
３１、Ｂ３２）とその不良部間の正常部（Ｃ３）を足し
た領域、すなわち同図のＡ３で示す領域が不良部とな
る。Further, when a plurality of surface defects exist and normal parts existing between defective parts due to the respective surface defects cannot be used as materials for the processed product, as shown in FIG. Of the defective part (B
31, B32) and the normal portion (C3) between the defective portions, that is, the area indicated by A3 in the figure is the defective portion.
【００２０】このように不良部が特定されることによ
り、鋼板の長手方向における不良部の位置を算出するこ
とが可能になる。こうして、長手方向における不良部の
位置はその鋼板に付帯した電子情報として、一時記憶装
置6に記録される。By thus identifying the defective portion, it becomes possible to calculate the position of the defective portion in the longitudinal direction of the steel sheet. Thus, the position of the defective portion in the longitudinal direction is recorded in the temporary storage device 6 as the electronic information attached to the steel plate.
【００２１】このとき、この不良部の位置に関する電子
情報に加え、その不良部に存在する表面欠陥の欠陥画像
および／または鋼板の表面欠陥の展開表を電子情報とし
て記録することが好ましい。このようにすることで、検
査員が鋼板とその鋼板に形成された表面欠陥の関係を容
易に把握することができる。ここで、展開表とは、表面
欠陥の欠陥種類、欠陥位置などの諸情報を鋼板毎に表に
まとめたものであり、表面欠陥の分別結果より、編集さ
れるものである。At this time, in addition to the electronic information regarding the position of the defective portion, it is preferable to record the defect image of the surface defect existing in the defective portion and / or the development table of the surface defects of the steel sheet as electronic information. By doing so, the inspector can easily understand the relationship between the steel plate and the surface defects formed on the steel plate. Here, the development table is a table in which various types of information such as defect types of surface defects and defect positions are summarized in a table for each steel plate, and is edited based on the result of sorting the surface defects.
【００２２】欠陥画像は、欠陥処理情報部5から撮像器4
への指令により撮影され、撮影された欠陥画像は一次記
憶装置5に記録される。このとき、すべての表面欠陥に
ついて撮影が行われる必要はなく、必要な表面欠陥につ
いてのみ撮影されれば十分である。また、専用に撮像器
を設けなくても、欠陥検出器3が撮像機能を有し、その
撮像写真から欠陥の有無を判断したのであれば、表面欠
陥が撮影された撮像写真を欠陥画像として一次記録装置
5に記録してもよい。The defect image is obtained from the defect processing information section 5 to the image pickup device 4
To the primary storage device 5 and the defect image thus captured is recorded in the primary storage device 5. At this time, it is not necessary to image all surface defects, and it is sufficient to image only necessary surface defects. Further, even if a dedicated image pickup device is not provided, the defect detector 3 has an image pickup function, and if the presence or absence of a defect is determined from the image pickup photograph, the image pickup photograph of the surface defect is taken as a primary defect image. Recording device
May be recorded in 5.
【００２３】図３は、欠陥情報処理部で作成された展開
表と撮影された欠陥画像の一例を模式的に示した図であ
る。展開表では、検出された欠陥は、表面、裏面それぞ
れ幅方向位置（1W、2W…）と鋼板の長手方向における位
置（例では10m単位）で示され、各表面欠陥には、欠陥
種類および欠陥等級により略号（ス41、オ33等）が付与
される（図３左）。また、展開表に対応して、欠陥画像
が撮影される（図３右）。FIG. 3 is a diagram schematically showing an example of a development table created by the defect information processing unit and a photographed defect image. In the expansion table, the detected defects are indicated by the position in the width direction (1W, 2W ...) and the position in the longitudinal direction of the steel sheet (10m units in the example) for each of the front surface and the back surface. Abbreviations (S41, E33, etc.) are assigned according to the grade (left in Fig. 3). In addition, a defect image is photographed corresponding to the expansion table (FIG. 3, right).
【００２４】この例によると、鋼板（コイル）の表面欠
陥は、全部で１０個検出されている。このうち、鋼板の
仕様に基づいて、除去すべき欠陥がへ41とス41であった
場合、除去すべき表面欠陥の数は合計７個となる。残り
の３個の表面欠陥（ヘ31および２個のオ33）について
は、実質的な表面欠陥とはならないため、以後の工程に
おいては無視される。According to this example, 10 surface defects of the steel sheet (coil) are detected in total. Of these, if the defects to be removed are 41 and S 41 based on the specifications of the steel sheet, the total number of surface defects to be removed is 7. The remaining three surface defects (31 and 2) are not substantial surface defects and are ignored in the subsequent steps.
【００２５】続いて、除去すべき表面欠陥の検出位置に
基づいて、除去すべき不良部を特定し、鋼板の長手方向
における不良部の位置を算出する。このとき、除去すべ
き表面欠陥の前後10mを不良部として除去することと
し、このコイルを使用し製造する加工製品に必要な長さ
が100mであるとする。Then, the defective portion to be removed is specified based on the detected position of the surface defect to be removed, and the position of the defective portion in the longitudinal direction of the steel sheet is calculated. At this time, 10 m before and after the surface defect to be removed is to be removed as a defective portion, and the length required for a processed product manufactured using this coil is 100 m.
【００２６】まず、裏面4Wの70mに位置する表面欠陥
（ス41）については、70±10m（60〜80m）に位置する領
域が除去すべき不良部として特定される。しかし、この
不良部より前に存在する0〜60mに位置する正常部の長さ
は、加工製品に必要な長さ（100m）よりも短いため、実
質的な不良部と考えられる。したがって、この表面欠陥
に対しては、0〜80mが鋼板の長手方向における不良部の
位置であると算出される（図３左欄不良部長さ）。First, for the surface defect (s 41) located at 70 m on the back surface 4W, the region located at 70 ± 10 m (60 to 80 m) is specified as the defective portion to be removed. However, since the length of the normal portion located at 0 to 60 m existing before this defective portion is shorter than the length (100 m) required for the processed product, it is considered to be a substantial defective portion. Therefore, with respect to this surface defect, it is calculated that 0 to 80 m is the position of the defective portion in the longitudinal direction of the steel sheet (the length of the defective portion in the left column of FIG. 3).
【００２７】次に、表面1Wの950m、960mおよび970mに位
置する表面欠陥（ヘ41）については、それぞれ950±10m
（940〜960m）、960±10m（950〜970m）、970±10m（96
0〜980m）に位置する領域が除去すべき不良部として特
定される。この場合、各不良部は重複することとなる。
したがって、各不良部を足した領域、すなわち940〜980
mが鋼板の長手方向における不良部の位置であると算出
される（図３左欄不良部長さ）。Next, for surface defects (f 41) located at 950 m, 960 m and 970 m of the surface 1W, 950 ± 10 m respectively.
(940 ~ 960m), 960 ± 10m (950 ~ 970m), 970 ± 10m (96
The area located from 0 to 980 m) is specified as the defective portion to be removed. In this case, the defective parts will overlap.
Therefore, the area where each defective portion is added, that is, 940 to 980
It is calculated that m is the position of the defective portion in the longitudinal direction of the steel sheet (the length of the defective portion in the left column of FIG. 3).
【００２８】さらに、表面3Wの2410m、表面3Wの2430mお
よび裏面3Wの2430mに位置する表面欠陥（ヘ41）につい
ては、それぞれ2410±10m（2400〜2420m）、2430±10m
（2420〜2440m）、2430±10m（2420〜2440m）に位置す
る領域が除去すべき不良部として特定される。この場
合、各不良部は連続または重複することとなる。したが
って、この場合も、各不良部を足した領域、すなわち24
00〜2440mが鋼板の長手方向における不良部の位置であ
ると算出される（図３左欄不良部長さ）。Further, for surface defects (41) located at 2410 m on the front surface 3W, 2430 m on the front surface 3W and 2430 m on the rear surface 3W, 2410 ± 10 m (2400 to 2420 m) and 2430 ± 10 m, respectively.
(2420 to 2440m) and 2430 ± 10m (2420 to 2440m) are identified as defective areas to be removed. In this case, each defective portion will be continuous or overlapped. Therefore, in this case as well, the area where each defective portion is added, that is, 24
It is calculated that 00 to 2440 m is the position of the defective portion in the longitudinal direction of the steel sheet (the length of the defective portion in the left column of FIG. 3).
【００２９】以上のような電子情報は、検査員の要求に
よりCRTへ表示される、または紙媒体へ出力されるとと
もに、欠陥情報処理部5、操業管理CPU7を介して生産管
理CPU8へ伝送され、鋼板の生産情報として処理される。
生産管理CPU8では、この電子情報を利用して、複数の製
造工程間にまたがり製品の製造指示や製造実績などの情
報管理が行われる。The electronic information as described above is displayed on the CRT at the request of the inspector or is output to a paper medium and is transmitted to the production management CPU 8 via the defect information processing unit 5 and the operation management CPU 7. It is processed as steel plate production information.
The production management CPU 8 uses this electronic information to manage information such as product manufacturing instructions and manufacturing results over a plurality of manufacturing processes.
【００３０】上述した実施の形態は、本願発明の一例に
すぎず、例えば、操業管理CPU7に十分な処理能力がない
場合には、鋼板の長手方向における不良部の位置に関す
るデータのみを伝送し、記録すればよい。また、生産管
理CPU8と欠陥情報処理部5の間の情報伝達についても、
操業管理CPU7を介さず行うなど適宜変更して使用するこ
とが可能である。さらに、除去すべき不良部の幅につい
ても、一律に設定する必要はなく、例えば、表面欠陥の
種類ごとに変えてもよい。The above-described embodiment is merely an example of the present invention. For example, when the operation management CPU 7 does not have sufficient processing capacity, only data relating to the position of the defective portion in the longitudinal direction of the steel sheet is transmitted, Just record it. In addition, regarding information transmission between the production management CPU 8 and the defect information processing unit 5,
The operation management CPU 7 can be used by appropriately changing it, for example, without going through the operation management CPU 7. Further, it is not necessary to uniformly set the width of the defective portion to be removed, and for example, it may be changed for each type of surface defect.
【００３１】このようにして得られた鋼板の長手方向に
おける不良部の位置に関する電子情報は、必要に応じて
欠陥画像および展開表に関する電子情報とともに、鋼板
のユーザーに対し提供することができる。ユーザーは、
各鋼板に対して長手方向における不良部の位置を把握で
きさえすれば、容易に不良部を除去することが可能とな
る。The electronic information on the position of the defective portion in the longitudinal direction of the steel sheet thus obtained can be provided to the user of the steel sheet together with the electronic information on the defect image and the development table as required. The user
If the position of the defective portion in the longitudinal direction of each steel plate can be grasped, the defective portion can be easily removed.
【００３２】電子情報の提供形態は、特に特定されない
が、ネットワークを利用した方法やCD-ROM、フロッピー
（登録商標）ディスクなどの記録媒体に電子情報をダウ
ンロードして鋼板とともにユーザーヘ配送する方法等が
考えられる。なお、ユーザーとは、企業外の客先だけで
はなく、同一企業内の次工程部署も含む。The form of providing the electronic information is not particularly specified, but a method using a network, a method of downloading the electronic information to a recording medium such as a CD-ROM or a floppy (registered trademark) disk and delivering the electronic information to the user together with the steel sheet, etc. Can be considered. The user includes not only customers outside the company but also next process departments within the same company.
【００３３】また、このような電子情報に基づいて、不
良部を切断し除去すれば、不要な切断を行わなくてよい
ので、効率的に不良部の除去が可能である。Further, if the defective portion is cut and removed based on such electronic information, unnecessary cutting is not required, so that the defective portion can be efficiently removed.
【００３４】[0034]
【発明の効果】本願発明によれば、除去すべき表面欠陥
を含む不良部を確実に検出し、その不良部を効率よく除
去することが可能となる。According to the present invention, it becomes possible to reliably detect a defective portion including a surface defect to be removed and efficiently remove the defective portion.
【図１】本発明の鋼板検査方法を行うことができる検査
装置の一例を模式的に示した図である。FIG. 1 is a diagram schematically showing an example of an inspection apparatus capable of performing a steel sheet inspection method of the present invention.
【図２】鋼板上の表面欠陥とその表面欠陥により特定さ
れる不良部を模式的に示した図である。FIG. 2 is a diagram schematically showing a surface defect on a steel plate and a defective portion specified by the surface defect.
【図３】欠陥情報処理部で作成された展開表と撮影され
た欠陥画像の一例を模式的に示した図である。FIG. 3 is a diagram schematically illustrating an example of a development table created by a defect information processing unit and a captured defect image.
１ 欠陥検査装置 ２ プロセスライン ３ 欠陥検出器 ４ 撮像器 ５ 欠陥情報処理部 ６ 一次記憶装置 ７ 操業管理CPU ８ 生産管理CPU ９ ユーザー 1 Defect inspection system 2 process lines 3 defect detector 4 imager 5 Defect information processing unit 6 Primary storage 7 Operation management CPU 8 Production control CPU 9 users
Claims (3)
検査方法であって、鋼板の仕様に基づいて、欠陥検出器
により除去すべき表面欠陥を検出し、各表面欠陥の検出
位置に基づいて、除去すべき不良部を特定して、鋼板の
長手方向における不良部の位置を算出し、その不良部の
位置を鋼板に付帯した電子情報として記録することを特
徴とする鋼板検査方法。1. A steel sheet inspection method for identifying a defective portion to be removed from a steel sheet, wherein a surface defect to be removed is detected by a defect detector based on a specification of the steel sheet, and based on a detection position of each surface defect. And a defective portion to be removed is specified, the position of the defective portion in the longitudinal direction of the steel sheet is calculated, and the position of the defective portion is recorded as electronic information attached to the steel sheet.
もに、その不良部に存在する表面欠陥の欠陥画像および
／または鋼板の表面欠陥の展開表を電子情報として記録
することを特徴とする請求項１に記載の鋼板検査方法。2. The position of the defective portion in the longitudinal direction of the steel sheet, the defect image of the surface defect existing in the defective portion and / or the development table of the surface defect of the steel sheet are recorded as electronic information. The steel plate inspection method described in 1.
より記録した電子情報を鋼板のユーザーに対し提供する
ことを特徴とする電子情報の利用方法。3. A method of utilizing electronic information, characterized in that electronic information recorded by the method for inspecting steel sheet according to claim 1 or 2 is provided to a user of the steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002015686A JP2003215052A (en) | 2002-01-24 | 2002-01-24 | Steel-plate inspection method and utilization method for electronic information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002015686A JP2003215052A (en) | 2002-01-24 | 2002-01-24 | Steel-plate inspection method and utilization method for electronic information |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003215052A true JP2003215052A (en) | 2003-07-30 |
Family
ID=27651996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002015686A Pending JP2003215052A (en) | 2002-01-24 | 2002-01-24 | Steel-plate inspection method and utilization method for electronic information |
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| Country | Link |
|---|---|
| JP (1) | JP2003215052A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009025344A1 (en) | 2007-08-17 | 2009-02-26 | Nippon Steel Corporation | Material information providing method for outgoing steel plate, and material information using method |
| JP2009166087A (en) * | 2008-01-16 | 2009-07-30 | Toshiba Mitsubishi-Electric Industrial System Corp | Quality control system of rolled product |
-
2002
- 2002-01-24 JP JP2002015686A patent/JP2003215052A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009025344A1 (en) | 2007-08-17 | 2009-02-26 | Nippon Steel Corporation | Material information providing method for outgoing steel plate, and material information using method |
| US8296081B2 (en) | 2007-08-17 | 2012-10-23 | Nippon Steel Corporation | Method for provision and utilization of material information regarding steel sheet for shipping |
| JP2009166087A (en) * | 2008-01-16 | 2009-07-30 | Toshiba Mitsubishi-Electric Industrial System Corp | Quality control system of rolled product |
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