JPS6245404A - Method and apparatus for forming end of hot rolled steel sheet - Google Patents
Method and apparatus for forming end of hot rolled steel sheetInfo
- Publication number
- JPS6245404A JPS6245404A JP18358085A JP18358085A JPS6245404A JP S6245404 A JPS6245404 A JP S6245404A JP 18358085 A JP18358085 A JP 18358085A JP 18358085 A JP18358085 A JP 18358085A JP S6245404 A JPS6245404 A JP S6245404A
- Authority
- JP
- Japan
- Prior art keywords
- edger
- width
- rear ends
- bar
- strip
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims description 5
- 239000010959 steel Substances 0.000 title claims description 5
- 238000000034 method Methods 0.000 title claims description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 18
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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
- B21B1/02—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 heavy work, e.g. ingots, slabs, blooms, or billets, in which the cross-sectional form is unimportant ; Rolling combined with forging or pressing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は板幅精度を良好にすることにより歩留りを向上
させた熱延鋼板の端部成形方法及び装置に関するもので
おる。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method and apparatus for forming the end of a hot rolled steel sheet, which improves the yield by improving the sheet width accuracy.
［従来の技術］
板幅精度の向上、エツジドロップの改善のために、熱間
圧延ラインの仕上スタンド間にエツジヤ−を設け、スト
リップの幅圧下を行うことが従来から行われている。[Prior Art] In order to improve strip width accuracy and reduce edge drop, it has been conventional practice to provide an edger between finishing stands of a hot rolling line to reduce the width of the strip.
［発明が解決しようとする問題点］
しかしながら、従来手段では前後の仕上スタンドにより
ストリップに張力を掛けて幅圧下を行う必要がおるため
、ストリップ先後端部を幅圧下することができず、従っ
て第５図に示すように、圧延後のストリップａの先後端
部にはばち形状部すが生じる。このためストリップａは
板幅精度を全長に亘って良好にすることかできず、ばち
形状部すは切断する必要があるので、歩留りを向上させ
ることができない。[Problems to be Solved by the Invention] However, with the conventional means, it is necessary to apply tension to the strip using the front and rear finishing stands to reduce the width, and therefore it is not possible to reduce the width of the leading and trailing ends of the strip. As shown in FIG. 5, dovetail-shaped portions are formed at the front and rear ends of the rolled strip a. For this reason, it is not possible to improve the width accuracy of the strip a over the entire length, and since the dovetail-shaped portions must be cut, the yield cannot be improved.
本発明は上記実情に鑑み、圧延後のスト１ノツプ先後端
部にばち形状部が生じないようにすることを目的として
なしたものでおる。The present invention has been made in view of the above-mentioned circumstances, with the object of preventing the formation of dovetail-shaped portions at the tip and rear ends of the stop 1 knob after rolling.
［問題点を解決するための手段］
本発明では、粗バー先端部及び後端部の少くとも一方を
仕上圧延ライン入側のプレス装置によりプレスし、しか
る後、仕上圧延ライン中に設けたエツジＸ・−により幅
圧下を行っている。[Means for Solving the Problems] In the present invention, at least one of the leading end and the rear end of the rough bar is pressed by a press device on the entry side of the finishing rolling line, and then the edge provided in the finishing rolling line is pressed. Width reduction is performed by X.-.
［作 用１
従って、本弁明では粗バーは先端部及び後端部、或いは
先端部若しくは後端部のいずれか一方をプレスされた後
仕上げ圧延ライン内で幅圧下されるため、全長に亘って
板幅精度が良好になる。[Effect 1 Therefore, in this defense, the rough bar is rolled down in width in the finishing rolling line after being pressed at the leading end and the trailing end, or either the leading end or the trailing end, so that Good plate width accuracy.
［実 施 例］
以下、本発明の実施例を添付図面を参照しつつ説明する
。[Example] Hereinafter, an example of the present invention will be described with reference to the accompanying drawings.
第１図〜第３図は本発明の一実施例で、図中１は、仕上
圧延ラインの入側に配設されたプレス装置で、該プレス
装置１は、上下につば部を有する金型２及び該金型２を
粗バー３の幅方向両側部に押付ける流体圧シリンダ等駆
動装置４を備えている。1 to 3 show an embodiment of the present invention. In the figure, 1 is a press device installed on the entry side of a finishing rolling line, and the press device 1 is a mold having upper and lower flanges. 2 and a drive device 4 such as a fluid pressure cylinder that presses the mold 2 against both sides of the rough bar 3 in the width direction.
５はプレス装置１の下流側に配設され先後端部を板幅方
向にプレスされた粗バー３の先後端部のクロップを切断
するためのクロップシャー。A crop shear 5 is disposed on the downstream side of the press device 1 and is used to cut the crop at the front and rear ends of the rough bar 3 whose front and rear ends have been pressed in the board width direction.
６−１．６−２．６−３・・・６−ｎはタロツブジャー
５の下流側に順次配列されたタンデム仕」−ミル、７−
１゜７−２・・・７−（ｎ−１）はタンデム仕上ミル６
−１．６−２゜６−３・・・６−ｎによる圧延時にスト
リップ８を上方へ押上げて該ストリップ８に張力を付与
するようにしたルーパー、９は最終段のタンデム仕上ミ
ル６−ｎの」二流側に配設されたエツジヤ−でおる。6-1.6-2.6-3...6-n is a tandem system arranged sequentially on the downstream side of the tarotsubger 5" - Mill, 7-
1゜7-2...7-(n-1) is tandem finishing mill 6
-1.6-2゜6-3...6-n looper which pushes up the strip 8 and applies tension to the strip 8 during rolling, 9 is the final stage tandem finishing mill 6- There is an edger located on the second-stream side of "n".
圧延時には粗バー３の先後端部はプレス装置１において
金型２により板幅方向ヘプレスされる。金型２によりプ
レスされた粗バー３の先後端部の形状は第４図に示すよ
うに狭幅部イ、口が形成される。During rolling, the front and rear ends of the rough bar 3 are pressed in the sheet width direction by a mold 2 in the press device 1. The shape of the front and rear ends of the rough bar 3 pressed by the mold 2 is such that a narrow portion A and a mouth are formed as shown in FIG.
粗バー３のプレスされた先後端部は第４図のハ、二に示
すようにクロップシャー５によってクロップが切断され
、タンデム仕上ミル６−１゜６−２．６−３・・・によ
って順次板厚方向に圧延され、圧延されて形成されたス
トリップ８は最終段のタンデム仕上ミル６−ｎとその上
流側のタンデム仕上ミルに噛込まれた状態でルーパー７
−（ｎ−１）により張力を付与され、エツジヤ−９によ
り所定の幅に幅圧下される。この場合、ストリップ８は
粗バー３先後端部の狭幅部と略同じ幅に幅圧下される。The pressed front and rear ends of the rough bar 3 are cropped by a crop shear 5 as shown in FIG. The strip 8 that is rolled in the thickness direction and formed by rolling is passed through the looper 7 while being bitten by the final stage tandem finishing mill 6-n and the tandem finishing mill upstream thereof.
-(n-1) applies tension, and the edger 9 lowers the width to a predetermined width. In this case, the width of the strip 8 is reduced to approximately the same width as the narrow portion of the front and rear ends of the coarse bar 3.
ストリップ８の先端部が最終段のタンデム仕上ミル６−
ｎに噛込まれる前及び後端部かタンデム仕上ミル６−ｎ
の一つ上流側のタンデム仕上ミルから抜けた後は幅圧下
は行われない。The tip of the strip 8 is the final stage of the tandem finishing mill 6-
Tandem finishing mill 6-n for the front and rear ends that are bitten by n
Width reduction is not performed after passing through the tandem finishing mill one upstream side.
上述のように粗バー３の先後端部を板幅方向 １にプレ
スした後仕上圧延ラインに設けたエツジヤ−９によりス
トリップ８の幅圧下を行うと、ス１ヘリツブ８はばち形
状部が生じないため全長に亘って板幅精度か良好となる
。As mentioned above, when the width of the strip 8 is reduced by the edger 9 installed in the finishing rolling line after the front and rear ends of the rough bar 3 are pressed in the width direction 1 of the strip, a dovetail-shaped portion is formed in the helix 8 of the strip 1. Since there is no plate width, the plate width accuracy is good over the entire length.
なあ、本発明の実施例では、粗バーの先後端部の両方を
板幅方向へプレスする場合について説明したが先端部或
いは後端部のいずれか一方のみをプレスするようにして
も実施できること、エツジヤ−は最終段のタンデム仕上
ミルの上流側に限らず仕上圧延ライン内なら任意の位置
に配設することができること、その他、本発明の要旨を
逸脱しない範囲内で種々変更を加え冑ること、等は勿論
でおる。Incidentally, in the embodiments of the present invention, the case where both the leading and trailing ends of the rough bar are pressed in the board width direction is explained, but it is also possible to press only either the leading end or the trailing end. The edger is not limited to the upstream side of the tandem finishing mill at the final stage, but can be placed at any position within the finishing rolling line, and various other changes may be made without departing from the gist of the present invention. , etc. are of course possible.
［発明の効果］
本発明の熱延鋼板の端部成形方法及び装置によれば、圧
延後のストリップにばち部が生じることがなく、全長に
亘って板幅精度か向上するため、歩留りが向上するとい
う優れた効果を奏し得る。[Effects of the Invention] According to the method and apparatus for forming the end of a hot rolled steel sheet according to the present invention, no dovetails are formed in the strip after rolling, and the width accuracy of the sheet is improved over the entire length, resulting in improved yield. It can have the excellent effect of improving
第１図は本発明の一実施例の説明図、第２図は第１図の
平面図、第３図は第２図の■方向矢視図、第４図は先後
端部か幅プレスされた粗バーの説明図、第５図は先後端
部が幅プレスされないで幅圧下した場合に材料に生じる
ばち形状部の説明図である。
図中１はプレス装置、５はクロップシャー、６−１．６
−２．６−３・・・６−ｎはタンデム仕上ミル、７−１
゜７−２・・・７−（ｎ−１）はルーパー、９はエツジ
ヤ−を示す。
第１図
第２図
第４因
第３図
第５図FIG. 1 is an explanatory diagram of an embodiment of the present invention, FIG. 2 is a plan view of FIG. FIG. 5 is an explanatory diagram of a dovetail-shaped portion that occurs in the material when the front and rear ends are width-reduced without being width-pressed. In the figure, 1 is a press device, 5 is a crop shear, and 6-1.6
-2.6-3...6-n is a tandem finishing mill, 7-1
7-2...7-(n-1) indicates a looper, and 9 indicates an edger. Figure 1 Figure 2 Figure 4 Cause Figure 3 Figure 5
Claims (1)
ライン入側のプレス装置により幅プレスし、しかる後、
仕上圧延ライン中に設けたエッジャーにより幅圧下する
ことを特徴とする熱延鋼板の端部成形方法。 ２）粗バーの幅プレスを行うプレス装置と、該プレス装
置の下流側に配設されたタンデム仕上ミル中の所要位置
に配設されたエッジャーとを備えたことを特徴とする熱
延鋼板の端部成形装置。[Claims] 1) At least one of the tip and rear ends of the rough bar is width-pressed using a press device on the entry side of the finishing rolling line, and then,
A method for forming the edge of a hot-rolled steel sheet, characterized by width reduction using an edger installed in a finishing rolling line. 2) A hot-rolled steel sheet characterized by comprising a press device for width pressing a rough bar, and an edger disposed at a predetermined position in a tandem finishing mill disposed downstream of the press device. Edge forming device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18358085A JPS6245404A (en) | 1985-08-21 | 1985-08-21 | Method and apparatus for forming end of hot rolled steel sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18358085A JPS6245404A (en) | 1985-08-21 | 1985-08-21 | Method and apparatus for forming end of hot rolled steel sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6245404A true JPS6245404A (en) | 1987-02-27 |
Family
ID=16138299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18358085A Pending JPS6245404A (en) | 1985-08-21 | 1985-08-21 | Method and apparatus for forming end of hot rolled steel sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6245404A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064123A (en) * | 2008-09-12 | 2010-03-25 | Jfe Steel Corp | Method for shaping slab by sizing press |
| JP2019084564A (en) * | 2017-11-07 | 2019-06-06 | 新日鐵住金株式会社 | Hot rolling method and hot rolling mill row |
-
1985
- 1985-08-21 JP JP18358085A patent/JPS6245404A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010064123A (en) * | 2008-09-12 | 2010-03-25 | Jfe Steel Corp | Method for shaping slab by sizing press |
| JP2019084564A (en) * | 2017-11-07 | 2019-06-06 | 新日鐵住金株式会社 | Hot rolling method and hot rolling mill row |
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