JP2808348B2 - Control method of strip end shape of strip - Google Patents
Control method of strip end shape of stripInfo
- Publication number
- JP2808348B2 JP2808348B2 JP2195015A JP19501590A JP2808348B2 JP 2808348 B2 JP2808348 B2 JP 2808348B2 JP 2195015 A JP2195015 A JP 2195015A JP 19501590 A JP19501590 A JP 19501590A JP 2808348 B2 JP2808348 B2 JP 2808348B2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- edger
- finishing mill
- rolling
- rolled
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/26—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by hot-rolling, e.g. Steckel hot mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/224—Edge rolling of flat products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Control Of Metal Rolling (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、粗圧延した鋼板を仕上圧延機上流側で接続
して連続的に熱間仕上圧延し、圧延後切断してコイルに
巻取る、いわゆる熱間エンドレス圧延におけるストリッ
プの板端部形状の制御方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method in which a rough-rolled steel sheet is connected upstream of a finishing mill, continuously hot-finished, rolled, cut and wound into a coil. More specifically, the present invention relates to a method for controlling a shape of a strip end portion of a strip in so-called hot endless rolling.
従来の鋼板熱間圧延設備では、圧延素材であるスラブ
単位毎に圧延を行っていた。近年熱圧延薄板鋼板の需要
の増大に伴い、その生産能率を向上すること及び省エネ
ルギー、省力化の要望に応える方法として、仕上圧延機
の上流側において粗圧延機より送り出されてくる先行鋼
板の終端部と後方鋼板の先端部とを接合し、これを連続
的に仕上圧延機で圧延するエンドレス圧延法がある。In a conventional steel sheet hot rolling facility, rolling is performed for each slab unit that is a rolling material. In response to the increasing demand for hot-rolled thin steel sheets in recent years, as a way to improve the production efficiency and save energy and save labor, the end of the preceding steel sheet sent from the rough rolling mill on the upstream side of the finishing mill There is an endless rolling method in which a portion and a front end portion of a rear steel plate are joined, and this is continuously rolled by a finish rolling mill.
すなわち、粗圧延機から送り出された鋼板は、テーブ
ルローラにより搬送され、接合装置で先行する鋼板の終
端部に接合され、連続的に仕上圧延機で圧延される。仕
上圧延機で圧延された鋼板は冷却装置により冷却された
後剪断機により切断され巻取機により巻取られコイル状
の製品になる。That is, the steel sheet sent from the rough rolling mill is conveyed by a table roller, joined to the terminal end of the preceding steel sheet by a joining device, and continuously rolled by a finishing mill. The steel sheet rolled by the finish rolling mill is cooled by a cooling device and then cut by a shearing machine and wound by a winder to form a coiled product.
従来、ストリップの板端部の形状の制御については、
特開昭59−035804号公報に開示された技術がある。この
技術は、仕上圧延機スタンド間の中間エッジヤでストリ
ップをエッジビルドアップ状に圧延し、次に水平圧延を
行いエッジドロップのないストリップを作ろうというも
のである。この技術は、ストリップの最先端部と最後端
部は水平圧延できないので全長をエッジドロップのない
ストリップにするためストリップの最先端部と最後端部
を切捨てる。このため歩留りが下がる。Conventionally, regarding the control of the shape of the strip end of the strip,
There is a technique disclosed in JP-A-59-035804. In this technique, a strip is rolled into an edge build-up shape at an intermediate edge between finish mill stands, and then horizontally rolled to produce a strip without edge drops. This technique truncates the leading and trailing ends of the strip to make the entire length strip free of edge drops, since the leading and trailing ends of the strip cannot be rolled horizontally. For this reason, the yield decreases.
また特開昭63−010010号公報に上記技術の機構に最終
水平圧延スタンド出側直近に小型のエッジヤを配置し、
ストリップの最先端部と最後端部はエッジビルドアップ
状に圧延できないという欠点を解消しようというもので
ある。この技術は最終水平圧延スタンド出側直近に配置
する小型のエッジヤの保守管理が極めて困難である。Also, in JP-A-63-010010, a small edger is arranged in the mechanism of the above technology in the vicinity of the exit side of the final horizontal rolling stand,
The purpose is to eliminate the disadvantage that the leading and trailing ends of the strip cannot be rolled into edge build-up. With this technique, it is extremely difficult to maintain and manage a small edger that is disposed immediately near the exit side of the final horizontal rolling stand.
本発明は、上記熱間エンドレス圧延において、連結さ
れたストリップが仕上圧延機で仕上圧延後冷却され、高
速切断機で切断されるまで張力を与えられており、切断
直前、すなわち冷却された後にエッジヤで最終板端部制
御を行うと、板形状の精度が高くなることに着目し、保
守管理の容易な位置にエッジヤを配設し、かつ、切捨部
を最小にし歩留りを向上した板端部制御方法を提供する
ことを目的とする。According to the present invention, in the hot endless rolling, the connected strips are subjected to finish rolling in a finishing mill and then cooled, and then tensioned until cut by a high-speed cutting machine. Paying attention to the fact that when the final plate edge control is performed, the accuracy of the plate shape will increase, the edger is arranged at a position where maintenance is easy, and the cut end is minimized to improve the yield It is an object to provide a control method.
本発明は、熱間エンドレス圧延におけるストリップの
板端部形状の制御方法であって切断機前のピンチロール
直近に設けた第１のエッジヤ及び仕上圧延機スタンド間
又は仕上圧延機出口直近に設けた第２のエッジヤを用い
てストリップを垂直圧延し、次いで切断機前のピンチロ
ールで水平軽圧下することを特徴とする。The present invention is a method for controlling the shape of a strip end portion of a strip in hot endless rolling, wherein the strip edge is provided between a first edger provided near a pinch roll before a cutting machine and a finishing mill stand or provided immediately near a finishing mill outlet. The strip is vertically rolled using a second edger, and then horizontally lightly reduced with a pinch roll before the cutting machine.
本発明は、エンドレス圧延を行うので、シートバーを
仕上圧延機入口より上流側で接合してＮ本のコイルを製
造するとき、１本目のストリップの最先端部が第１のエ
ッジヤの下流側のピンチローラに噛み込んでからＮ本目
の最後端部が第２のエッジヤの上流側の仕上圧延機を離
れるまで多数のストリップを連続的にエッジングし、ス
トリップの板端部形状の制御を行う。Since the present invention performs endless rolling, when the sheet bar is joined upstream from the entrance of the finishing mill to produce N coils, the leading end of the first strip is located downstream of the first edger. A number of strips are continuously edged until the N-th rearmost end of the strip leaves the finishing mill on the upstream side of the second edger after being engaged with the pinch roller, and the shape of the strip end is controlled.
第１のエッジヤは冷却後のストリップのエッジングを
行うので精度のよいエッジングを行うことができる。第
１のエッジヤを切断機前のピンチロールに直近に配設す
ることにより、エッジングできない先頭部の長さを極小
にする。第２のエッジヤは最尾端のストリップの後端部
のエッジングできない長さを極小にするため仕上圧延機
の出口直近に設ける。いずれのエッジヤも、保守管理が
良好な状態に保つことができる。Since the first edger performs edging of the strip after cooling, accurate edging can be performed. By disposing the first edger immediately adjacent to the pinch roll in front of the cutting machine, the length of the leading portion that cannot be edged is minimized. The second edger is provided immediately near the exit of the finishing mill to minimize the length of the trailing end of the tail end strip that cannot be edged. Either edger can maintain good maintenance.
第１図に本発明の実施例の配列を示す。ストリップ10
1は仕上圧延機103の上流側で多数本が接続されエンドレ
ス圧延される。仕上圧延機103で仕上圧延終了したスト
リップ101は冷却装置107で冷却され、ピンチロール106
を経て切断機105で切断され巻取機104に巻取られる。ス
トリップ101はピンチロール106まで張力下におかれてい
る。FIG. 1 shows an arrangement of an embodiment of the present invention. Strip 10
A number 1 is connected upstream of the finishing mill 103 and is subjected to endless rolling. The strip 101, which has been finish-rolled by the finishing mill 103, is cooled by the cooling device 107,
Then, it is cut by the cutting machine 105 and wound up by the winder 104. Strip 101 is under tension to pinch roll 106.
本発明の場合、第１のエッジヤ102aは切断機105前の
ピンチロール106の直近に設けられる。また第２のエッ
ジヤ102bは仕上圧延機103の出口直近に配設される。こ
の第２のエッジヤ102bは場合によっては仕上圧延機103
のスタンド間に配設してもよい。In the case of the present invention, the first edger 102a is provided immediately before the pinch roll 106 in front of the cutting machine 105. The second edger 102b is disposed immediately near the exit of the finishing mill 103. This second edger 102b may optionally be a finishing mill 103
May be arranged between the stands.
８本のシートバーを仕上圧延機の上流側で接合し、１
本目のシートバーから作られるコイル101の最先端部が
ピンチロール106に噛み込んだ後、エッジヤ102a、102b
でコイル101のエッジングを開始した。８本目のシート
バーから作られるストリップ101の最後端部が最終仕上
圧延機103を離れる直前にエッジヤ102bでコイル101のエ
ッジングを終了した。この接合した８本のストリップよ
り10本のコイルを生産した。Eight sheet bars are joined upstream of the finishing mill,
After the foremost part of the coil 101 made from the first sheet bar bites into the pinch roll 106, the edge jaws 102a, 102b
Then, the edging of the coil 101 was started. Immediately before the last end of the strip 101 made of the eighth sheet bar leaves the final finishing mill 103, the edging of the coil 101 was completed by the edger 102b. Ten coils were produced from the joined eight strips.
本発明によれば、仕上圧延機入口で接合されたシート
バーの最先端部、最後端部に当たるストリップの部分も
垂直圧延できるので、全長にエッジドロップのないスト
リップが最先端部と最後端部の切捨て無しにできた。ま
た、エッジヤを蒸気、スケール等によって環境が悪い位
置に設置する制約がなく、環境の良い所に設置すること
ができる。これによりエッジヤの保守管理も容易であ
り、信頼性が向上する。According to the present invention, the leading end of the sheet bar joined at the entrance of the finishing mill, the portion of the strip corresponding to the rearmost end can also be vertically rolled, so that the strip having no edge drop over the entire length is the leading end and the rearmost end. Made without truncation. In addition, there is no restriction to install the edger in a location where the environment is bad due to steam, scale, or the like, and the edger can be installed in a location with a good environment. As a result, the maintenance management of the edger is easy, and the reliability is improved.
第１図は本発明の実施例の配列を示す模式図、第２図は
従来装置の模式側面図である。 101……ストリップ 102a,102b……エッジヤ 103……仕上圧延機 104……巻取機 105……切断機 106……ピンチロール 107……冷却装置FIG. 1 is a schematic view showing an arrangement of an embodiment of the present invention, and FIG. 2 is a schematic side view of a conventional apparatus. 101: Strip 102a, 102b: Edger 103: Finishing mill 104: Winding machine 105: Cutting machine 106: Pinch roll 107: Cooling device
───────────────────────────────────────────────────── フロントページの続き (72)発明者 青木 富士男 千葉県千葉市川崎町１番地 川崎製鉄株 式会社千葉製鉄所内 (72)発明者 吉村 宏之 千葉県千葉市川崎町１番地 川崎製鉄株 式会社千葉製鉄所内 (58)調査した分野(Int.Cl.6，ＤＢ名) B21B 1/26──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Fujio Aoki 1 Kawasaki-cho, Chiba-shi, Chiba Kawasaki Steel Corp. Inside Chiba Works (72) Inventor Hiroyuki Yoshimura 1 Kawasaki-cho, Chiba-shi, Chiba Kawasaki Steel Corp. Chiba Works (58) Field surveyed (Int. Cl. 6 , DB name) B21B 1/26
Claims (1)
ンチロール直近の第１のエッジヤ及び仕上圧延機スタン
ド間又は仕上圧延機出口直近の第２のエッジヤを用いて
垂直圧延し、次いで切断機前ピンチロールで水平軽圧下
することを特徴とするストリップの板端部形状の制御方
法。In the hot endless rolling, vertical rolling is performed using a first edger immediately before a pinch roll and a second edger immediately between a finishing mill stand or a finishing mill outlet before a cutting machine, and then before a cutting machine. A method of controlling the shape of a strip end portion, wherein the strip is horizontally and slightly reduced by a pinch roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2195015A JP2808348B2 (en) | 1990-07-25 | 1990-07-25 | Control method of strip end shape of strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2195015A JP2808348B2 (en) | 1990-07-25 | 1990-07-25 | Control method of strip end shape of strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0484606A JPH0484606A (en) | 1992-03-17 |
| JP2808348B2 true JP2808348B2 (en) | 1998-10-08 |
Family
ID=16334115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2195015A Expired - Lifetime JP2808348B2 (en) | 1990-07-25 | 1990-07-25 | Control method of strip end shape of strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2808348B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19757486A1 (en) * | 1997-12-23 | 1999-06-24 | Schloemann Siemag Ag | Rolling process for a metal strip |
-
1990
- 1990-07-25 JP JP2195015A patent/JP2808348B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0484606A (en) | 1992-03-17 |
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