JPH0688042B2 - Manufacturing method for uniform thickness steel strip - Google Patents
Manufacturing method for uniform thickness steel stripInfo
- Publication number
- JPH0688042B2 JPH0688042B2 JP59040241A JP4024184A JPH0688042B2 JP H0688042 B2 JPH0688042 B2 JP H0688042B2 JP 59040241 A JP59040241 A JP 59040241A JP 4024184 A JP4024184 A JP 4024184A JP H0688042 B2 JPH0688042 B2 JP H0688042B2
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- width
- strip
- thickness
- plate
- 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
- B21B1/224—Edge rolling of flat products
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/16—Control of thickness, width, diameter or other transverse dimensions
- B21B37/22—Lateral spread control; Width control, e.g. by edge rolling
-
- 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
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2263/00—Shape of product
- B21B2263/10—Lateral spread defects
- B21B2263/12—Dog bone
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明は均一厚幅鋼帯の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to a method for producing a steel strip of uniform thickness.
（ロ）従来技術 鋼帯の圧延方法において、板幅と板厚との両方向を同時
に圧下修正する手段は、本出願人に係る三点拘束式エツ
ジヤ装置として出願されているが、従来のこの種の技術
は装置の構造や使用方法等に関するものであつた。(B) Prior art In the method of rolling a steel strip, a means for simultaneously reducing the strip width and strip thickness in both directions has been filed as a three-point restraint type edger device of the present applicant. Was related to the structure and usage of the device.
そこで、本出願人はさらに研究を進めて、第１図に示す
ような板幅制御方法を開発し、特願昭58−103642号とし
て開示した。この方法は先の出願の三点拘束式エツジヤ
装置を活用して鋼帯の板幅を制御するものである。すな
わち、この方法をさらに詳述すれば、１対のエツジヤ竪
ロールと鋼帯上下面押えロールとを同一平面位置に組合
せて板厚と板幅とを同時に制御する同時板厚板幅圧下装
置により、鋼帯板幅を一定に拘束圧延し、鋼帯両端部に
ドッグ・ボーンを生じさせた後、水平ロールによる圧延
により、該ドッグ・ボーン部を圧延し、消去するもので
ある。Therefore, the present applicant further researched and developed a plate width control method as shown in FIG. 1 and disclosed it as Japanese Patent Application No. 58-103642. This method utilizes the three-point restraint type edger device of the previous application to control the strip width of the steel strip. That is, to explain this method in more detail, a pair of edge mill vertical rolls and steel strip upper and lower pressing rolls are combined in the same plane position to simultaneously control the plate thickness and the plate width by a simultaneous plate thickness plate width reduction device. After the steel strip plate width is constrained and rolled to form dog bones at both ends of the steel strip, the dog bone portions are rolled and erased by rolling with horizontal rolls.
しかし、この方法を実施してみると、第１図に示すよう
な欠点があることがわかつた。例えば、幅（W0）1235mm
×厚み3.8mmの熱間圧延材（鋼帯）ａから幅（W1）1230m
m×厚み1.0mmの冷間圧延材ａ′を製造する場合について
説明する。熱間圧延材ａの幅変動（ΔＷ±5mm）がある
場合、同時板厚板幅圧下装置によつて板幅W1′のドッグ
・ボーン状中間圧延材ａ″に成形したとき（片側幅圧下
量を最大5mmとする）、材料ａの幅の大きい部分ではド
ッグ・ボーン量ｄも大きくなり、この材料を水平ロール
による冷間圧延すると幅戻りを生じ板幅W1は板幅一定に
はならない。その幅戻りはＴ＝3mmにも達し、もしこの
まま焼鈍工程にて横転段積みを行うと、エツジ部の突出
部が座屈を起し、次工程（例えば、調質圧延工程）でト
ラブルを起こすなど歩留低下を招くことになる。However, when this method was implemented, it was found that there were drawbacks as shown in FIG. For example, width (W 0 ) 1235mm
× Width (W 1 ) 1230m from hot rolled material (steel strip) a with a thickness of 3.8mm
A case of manufacturing a cold rolled material a ′ having m × 1.0 mm thickness will be described. When there is a width variation (ΔW ± 5 mm) of the hot rolled material a, when it is formed into a dog-bone-shaped intermediate rolled material a ″ with a plate width W 1 ′ by a simultaneous plate thickness plate width reduction device (one side width reduction The maximum amount is 5 mm), and the dog bone amount d is also large in the large width part of the material a, and when this material is cold-rolled by a horizontal roll, width reversion occurs and the plate width W 1 is not constant. The width return reaches T = 3mm, and if horizontal rolling is stacked in the annealing process as it is, the protruding part of the edge part buckles, causing trouble in the next process (for example, temper rolling process). This will lead to a decrease in yield.
（ハ）発明の目的 本発明の目的は、歩留よく、より完全な均一厚幅鋼帯を
製造する方法を得ることにある。(C) Object of the invention It is an object of the present invention to obtain a method for producing a more perfect uniform thickness steel strip with good yield.
（ニ）発明の構成 本発明の均一厚幅鋼帯の製造方法は、１対のエツジヤ竪
ロールと鋼帯上下面押えロールとを同一平面位置に組合
せて板厚と板幅とを同時に制御する同時板厚板幅圧下装
置を少なくとも１台配設する鋼帯製造工程において、前
記板厚板幅圧下装置により鋼帯の板幅を目標値に幅圧下
し、鋼帯端部にドッグ・ボーンを生じさせ、該鋼帯エツ
ジに生じたドツク・ボーン部を機械切削し、然る後、水
平ロールによる冷間圧延を行うことを特徴としている。(D) Structure of the Invention In the method for manufacturing a uniform thick steel strip of the present invention, a pair of edge vertical rolls and steel strip upper and lower pressing rolls are combined in the same plane position to control the thickness and the width at the same time. In the steel strip manufacturing process in which at least one simultaneous thick plate width reduction device is provided, the plate thickness reduction device reduces the width of the steel strip to a target value, and a dog bone is formed at the end of the steel strip. It is characterized in that the dog bone portion generated in the steel strip edge is mechanically cut, and then cold rolled by a horizontal roll.
本発明の板幅制御方法の説明に先立ち、板厚板幅圧下装
置の代表例となる三点拘束式エツジヤ装置の構成を第２
図によつて説明する。前記装置は、走行する鋼帯ａの両
エツジ部の位置に対向して対称状に設けられるものであ
つて、ロール・ハウジング１を滑動ベツド11に一体固設
して板幅方向に位置移動可能に設け、ロール・ハウジン
グ１に、上下が対を成す２本の水平ロール2,3と、１本
のエツジヤ竪ロール４とが組込まれている。Prior to the description of the plate width control method of the present invention, the configuration of a three-point restraint type edger device, which is a typical example of the plate thickness plate width reduction device, will be described below.
It will be described with reference to the drawings. The device is symmetrically provided so as to face the positions of both edges of the running steel strip a, and the roll housing 1 is integrally fixed to the sliding bed 11 and can be moved in the plate width direction. In the roll housing 1, two horizontal rolls 2 and 3, which are paired in the upper and lower sides, and one edge vertical roll 4 are incorporated.
第２図に示すように、３本のロール2,3,4は鋼帯ａの進
行方向に垂直なる同一平面上において上，下，横、の三
方向から同時に鋼帯に圧接係合しうる位置に組合わされ
て設けられている。上押えロール２は、流体圧シリンダ
21によつて上下方向の移動が可能であつて、圧下量調整
可能に支持され、自在継手をかいして駆動モータ22の回
転が伝達される。下押えロール３はアイドル・ロールで
あつて、ロール・ハウジング１に軸受が固定されてい
る。エツジヤ竪ロール４もアイドル・ロールになされて
いる。これらのロールを組込んだロール・ハウジング１
は、圧下シリンダ５によつて鋼帯のエツジヤ方向へ押圧
され、エツジヤ竪ロール４に所望の圧下を行わせる。As shown in FIG. 2, the three rolls 2, 3, 4 can press-engage simultaneously with the steel strip from three directions of top, bottom, and side on the same plane perpendicular to the traveling direction of the steel strip a. It is installed in combination with the position. Upper presser roll 2 is a fluid pressure cylinder
A vertical movement is possible by means of 21 and is supported so that the amount of reduction can be adjusted, and the rotation of the drive motor 22 is transmitted through the universal joint. The lower presser roll 3 is an idle roll, and the bearing is fixed to the roll housing 1. Etsujiya Vertical Roll 4 is also an idol roll. Roll housing 1 incorporating these rolls
Is pressed in the edge direction of the steel strip by the pressure reduction cylinder 5 to cause the edge vertical roll 4 to perform a desired reduction.
本発明の方法においては、鋼帯の板幅を目標値に幅圧下
した後に、その鋼帯エツジに生じたドッグ・ボーン部を
機械切削する。この機械切削は、通常のバイトフライス
（フエース・カッタ、エンドミル等）、またはグライン
ダによつて行われる。In the method of the present invention, after the width of the steel strip is reduced to a target value, the dog bone portion formed in the edge of the steel strip is mechanically cut. This machine cutting is performed by a normal bite milling machine (face cutter, end mill, etc.) or a grinder.
その後は、前述した特許出願に開示した方法と同様に、
水平ロールによる冷間圧延を行うものである。After that, similar to the method disclosed in the above-mentioned patent application,
Cold rolling is performed by horizontal rolls.
（ホ）実施例 第３図に示すように、3.5mm厚×1235mm幅（W0）で幅変
動ΔＷ±5mmの酸洗済み熱間圧延鋼帯ａを用い、第２図
に示す三点拘束式エツジヤ装置によりドッグ・ボーン付
の板幅一定な鋼帯ａ″を製造した。このときの鋼帯ａ″
の幅（W1′）は1225mmであり、幅変動量は±0.5mmであ
つた。(E) Example As shown in FIG. 3, a pickled hot-rolled steel strip a having a width variation ΔW ± 5 mm of 3.5 mm thickness × 1235 mm width (W 0 ) was used and the three-point restraint shown in FIG. A steel strip a ″ with a dog bone and a constant strip width was manufactured by a rotary type edger.
The width (W 1 ′) was 1225 mm and the width variation was ± 0.5 mm.
鋼帯ａ″のドッグ・ボーン部をグラインダーにより削り
落した。その後の冷圧においても鋼帯ａ′の幅戻りは、
ほとんど生ぜず、板幅はW1≒W1′で±0.5mmの板幅変動
であつた。The dog-bone part of the steel strip a ″ was scraped off by a grinder.
Almost never occurred, and the plate width was ± 0.5 mm with W 1 ≈ W 1 ′.
（ヘ）効 果 本発明の方法によれば、冷間圧延後そのままで、エッジ
・ドロップのない鋼帯製造が可能となり、歩留が一般材
で３％、電磁鋼帯で15％向上し、また、従来薄物で問題
になつていたソーエッジ等の品質欠陥も解消することが
でき、従来の回転刃剪断式トリム作業の省略により、酸
洗ライン能率が15％向上し、稼働率も向上するなど大き
な合理化ができた。(F) Effect According to the method of the present invention, it is possible to manufacture a steel strip without edge and drop after the cold rolling as it is, and the yield is improved by 3% for the general material and 15% for the electromagnetic steel strip. In addition, quality defects such as saw edges, which had been a problem with thin products in the past, can be eliminated.By omitting the conventional rotary blade shearing trim work, the pickling line efficiency is improved by 15%, and the operating rate is also improved. A big rationalization has been made.
第１図は従来の板幅制御方法の実施過程を示す説明図。
第２図は本発明の方法に用いる三点拘束式エツジヤ装置
の半体を示す正面図。第３図は本発明の方法の実施過程
を示す説明図。 1:ロール・ハウジング 4:エツジヤ竪ロール 5:圧下シリンダ a:鋼帯 ａ′：冷間圧延材 ａ″：中間圧延材FIG. 1 is an explanatory view showing an implementation process of a conventional plate width control method.
FIG. 2 is a front view showing a half body of a three-point restraint type edger device used in the method of the present invention. FIG. 3 is an explanatory view showing an implementation process of the method of the present invention. 1: Roll housing 4: Edge vertical roll 5: Rolling cylinder a: Steel strip a ′: Cold rolled material a ″: Intermediate rolled material
Claims (1)
ロールとを同一平面位置に組合せて板厚と板幅とを同時
に制御する同時板厚板幅圧下装置を少なくとも１台配設
する鋼帯製造工程において、前記同時板厚板幅圧下装置
により鋼帯板幅を目標値に幅圧下し、該鋼帯端部にドッ
グ・ボーンを生じさせた後、このドッグ・ボーン部を機
械切削し、然る後、水平ロールによる減厚圧延を行うこ
とを特徴とした均一厚幅鋼帯の製造方法。1. At least one simultaneous plate thickness plate width reduction device for arranging a pair of edge vertical rolls and steel strip upper and lower pressing rolls in the same plane position to control the plate thickness and the plate width at the same time. In the steel strip manufacturing process, the width of the strip is reduced to the target value by the simultaneous strip thickness reduction device to generate a dog bone at the end of the strip, and then the dog bone is mechanically cut. Then, after that, a method for producing a uniform thick steel strip characterized by performing a thickness reduction rolling with a horizontal roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59040241A JPH0688042B2 (en) | 1984-03-02 | 1984-03-02 | Manufacturing method for uniform thickness steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59040241A JPH0688042B2 (en) | 1984-03-02 | 1984-03-02 | Manufacturing method for uniform thickness steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60184402A JPS60184402A (en) | 1985-09-19 |
| JPH0688042B2 true JPH0688042B2 (en) | 1994-11-09 |
Family
ID=12575214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59040241A Expired - Lifetime JPH0688042B2 (en) | 1984-03-02 | 1984-03-02 | Manufacturing method for uniform thickness steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0688042B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010234476A (en) * | 2009-03-31 | 2010-10-21 | Nippon Mining & Metals Co Ltd | Surface shaving device for metal plate |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5618281B2 (en) * | 1973-01-08 | 1981-04-28 | ||
| JPS5447853A (en) * | 1977-09-22 | 1979-04-14 | Ishikawajima Harima Heavy Ind Co Ltd | Rolling method |
| JPS561961A (en) * | 1979-06-20 | 1981-01-10 | Ricoh Co Ltd | Electrophotographic superposed image forming method and its device |
| JPS5940522B2 (en) * | 1979-11-02 | 1984-10-01 | 川崎製鉄株式会社 | Thick plate rolling equipment |
| JPS57160501A (en) * | 1981-03-31 | 1982-10-02 | Sumitomo Metal Ind Ltd | Method and device for controlling width and thickness of steel strip |
-
1984
- 1984-03-02 JP JP59040241A patent/JPH0688042B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60184402A (en) | 1985-09-19 |
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