JPS6363281B2 - - Google Patents
Info
- Publication number
- JPS6363281B2 JPS6363281B2 JP59095806A JP9580684A JPS6363281B2 JP S6363281 B2 JPS6363281 B2 JP S6363281B2 JP 59095806 A JP59095806 A JP 59095806A JP 9580684 A JP9580684 A JP 9580684A JP S6363281 B2 JPS6363281 B2 JP S6363281B2
- Authority
- JP
- Japan
- Prior art keywords
- strip
- irregular cross
- shearing
- section
- rolling
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
- B21C51/005—Marking devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は幅方向に板厚差を有する帯鋼（以下異
形断面ストリツプと記す）の圧延方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method of rolling a steel strip (hereinafter referred to as irregular cross-section strip) having thickness differences in the width direction.
（従来技術）
本発明に係るストリツプ幅方向に板厚差を有す
る異形断面ストリツプは、近年におけるエネルギ
ー危機を契機とする鋼板の使用削減、あるいは構
造物、車両の軽量化による製造コスト、消費エネ
ルギーの削減、更には積極的な剛性向上のための
応力レベルに応じた板厚差を有する鋼板の適用等
の達成のため強い関心が持たれている。このよう
な適用部材に対して、ホツトストリツプミルでは
断面形状に応じて１条ないし多条で圧延を行い、
次工程で耳切りあるいはスリツトを行つている。(Prior art) The irregular cross-section strip having a difference in plate thickness in the strip width direction according to the present invention can be used to reduce manufacturing costs and energy consumption by reducing the use of steel plates or reducing the weight of structures and vehicles due to the energy crisis in recent years. There is a strong interest in reducing the amount of stress and, furthermore, applying steel plates having different thicknesses depending on the stress level in order to actively improve rigidity. For such applicable parts, hot strip mills roll one or multiple strips depending on the cross-sectional shape.
The next step is to cut or slit the edges.
従来、特公昭37−667号公報にみられるように
ホツトストリツプミルで圧延した異形断面ストリ
ツプを次工程で耳切りあるいはスリツトを行う際
に、必要とする横断面形状を正確に剪断するため
に、コイルの剪断開始時に横断面形状の厚みを測
定により認識し、位置合わせを行い、耳切りある
いはスリツトを行つてきている。 Conventionally, as seen in Japanese Patent Publication No. 37-667, in order to accurately shear the required cross-sectional shape when performing edge cutting or slitting in the next process of irregular cross-sectional strips rolled with a hot strip mill. In addition, at the start of shearing the coil, the thickness of the cross-sectional shape is recognized by measurement, alignment is performed, and edge cutting or slitting is performed.
しかしながら、ホツトストリツプミルで圧延す
る場合、圧延条件の何らかの変化によるストリツ
プの蛇行を逃れることは極めて難しく、横断面形
状がコイルの長手方向で常に一定であるとは限ら
ない。また、厚みを測定して行なう方法は測定精
度の問題がある上、測定自体も煩わしい。 However, when rolling with a hot strip mill, it is extremely difficult to avoid meandering of the strip due to some change in rolling conditions, and the cross-sectional shape of the coil is not always constant in the longitudinal direction of the coil. Furthermore, the method of measuring the thickness has problems with measurement accuracy, and the measurement itself is troublesome.
（発明が解決しようとする問題点）
本発明はこのような事情を背景としてなされた
ものであり、異形断面ストリツプの剪断位置を効
果的、経済的に検出しうる異形断面ストリツプの
圧延方法を提供するものである。(Problems to be Solved by the Invention) The present invention has been made against the background of the above circumstances, and provides a method for rolling a strip of irregular cross section that can effectively and economically detect the shear position of the strip of irregular cross section. It is something to do.
（問題点を解決するための手段）
本発明は、ホツトストリツプミルのワークロー
ルにて異形断面ストリツプに剪断位置に対応する
マークを付与することを特徴とする異形断面スト
リツプの圧延方法である。すなわち、本発明は、
ホツトストリツプミルで単一スタンドないしは多
段スタンドにて異形断面ストリツプを圧延する際
に、圧延材に成形する最終スタンドのワークロー
ルにより、該圧延材の剪断時に剪断の基準となる
ロールマークを付与するものである。そのため、
最終スタンドのワークロールの適宜の位置を、凸
状、凹状、その他圧延時に被圧延材に他の部分と
異なる痕跡を残しうる形状とするものである。(Means for Solving the Problems) The present invention is a method of rolling a strip of irregular cross section, which is characterized in that a mark corresponding to a shearing position is given to the strip of irregular cross section by a work roll of a hot strip mill. . That is, the present invention
When rolling irregular cross-section strips in a single stand or multistage stand in a hot strip mill, the work roll of the final stand that forms the rolled material gives roll marks that serve as shearing standards when shearing the rolled material. It is something to do. Therefore,
The work rolls of the final stand are appropriately positioned to have a convex, concave, or other shape that can leave marks different from other parts of the rolled material during rolling.
これらワークロールの形状は、上ワークロール
単独、下ワークロール単独、あるいは上、下ワー
クロールに付与する場合も本発明の対象となるも
のである。 The present invention also applies to the shapes of these work rolls when the shape is applied to the upper work roll alone, the lower work roll alone, or to the upper and lower work rolls.
次に、図を用いて更に説明する。 Next, further explanation will be given using figures.
第１図は、本発明方法による異形断面ストリツ
プの形態を示す説明図である。t0は最大板厚、t1
は最小板厚を表わし、１は剪断時の基準線となる
ロールマークであり、２は剪断位置である。 FIG. 1 is an explanatory diagram showing the form of a strip of irregular cross section produced by the method of the present invention. t 0 is the maximum plate thickness, t 1
represents the minimum plate thickness, 1 is a roll mark that serves as a reference line during shearing, and 2 is the shearing position.
第２図は、異形断面鋼板に形成する最終スタン
ドのワークロールの形態を示す説明図である。３
は異形断面ストリツプの剪断基準とするロールマ
ークを付与するためのロール凹みである。ロール
凹み３はこれに限ることなく、凸としても良い
し、又は他の形状でも良い。 FIG. 2 is an explanatory diagram showing the form of the work roll of the final stand formed on the irregular cross-section steel plate. 3
is a roll recess for providing a roll mark that serves as a shear reference for the irregular cross-section strip. The roll recess 3 is not limited to this, and may be a convex shape or may have another shape.
このワークロールを最終スタンドに組込み、異
形断面ストリツプを圧延し、第１図に示した剪断
時の基準線となるロールマーク１を付与し、次工
程での剪断時にこの基準線を検出して剪断するこ
とで、横断面形状の良好な異形断面ストリツプの
剪断が実施可能となる。 This work roll is assembled into a final stand, a strip with a different cross section is rolled, and a roll mark 1, which serves as a reference line during shearing as shown in Fig. By doing so, it becomes possible to shear a strip of irregular cross-section with a good cross-sectional shape.
（発明の効果）
本発明の方法を適用した異形断面ストリツプに
剪断に際しては、厚み測定の手間が不要で、剪断
位置合わせの時間が大幅に短縮でき、産業上極め
て有効な発明である。(Effects of the Invention) When shearing strips with irregular cross-sections using the method of the present invention, there is no need to take the trouble of measuring the thickness, and the time for shearing and positioning can be significantly shortened, making this invention extremely effective industrially.
第１図は、本発明の方法による圧延材の形態を
示す説明図である。第２図は、本発明の方法を実
施してホツトストリツプミルで異形断面ストリツ
プに成形するためのワークロールの形態を示す。
１……剪断面の基準となるロールマーク、２…
…剪断位置、３……ロール凹み。
FIG. 1 is an explanatory diagram showing the form of a rolled material obtained by the method of the present invention. FIG. 2 shows the configuration of a work roll for forming into irregular cross-section strips in a hot strip mill in accordance with the method of the invention. 1... Roll mark serving as a reference for the shear plane, 2...
...Shearing position, 3...Roll dent.
Claims (1)
異形断面ストリツプを圧延する際に、圧延材に成
形する最終スタンドのワークロールにより、該圧
延材の剪断時に剪断の基準となるロールマークを
付与することを特徴とする異形断面ストリツプの
圧延方法。1. When rolling irregular cross-sectional strips with different thicknesses in the width direction using a continuous hot rolling mill, work rolls on the final stand that form the rolled material give roll marks that serve as shearing standards when shearing the rolled material. A method of rolling a strip of irregular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59095806A JPS60240309A (en) | 1984-05-14 | 1984-05-14 | Method for marking and rolling steel sheet having irregular section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59095806A JPS60240309A (en) | 1984-05-14 | 1984-05-14 | Method for marking and rolling steel sheet having irregular section |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60240309A JPS60240309A (en) | 1985-11-29 |
| JPS6363281B2 true JPS6363281B2 (en) | 1988-12-07 |
Family
ID=14147668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59095806A Granted JPS60240309A (en) | 1984-05-14 | 1984-05-14 | Method for marking and rolling steel sheet having irregular section |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60240309A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62240102A (en) * | 1986-04-11 | 1987-10-20 | Nippon Steel Corp | Irregular section steel plate having excellent surface characteristic and its production |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6110834Y2 (en) * | 1979-12-20 | 1986-04-07 |
-
1984
- 1984-05-14 JP JP59095806A patent/JPS60240309A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60240309A (en) | 1985-11-29 |
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