JPH0270023A - Method of passing thin steel strip - Google Patents
Method of passing thin steel stripInfo
- Publication number
- JPH0270023A JPH0270023A JP22113588A JP22113588A JPH0270023A JP H0270023 A JPH0270023 A JP H0270023A JP 22113588 A JP22113588 A JP 22113588A JP 22113588 A JP22113588 A JP 22113588A JP H0270023 A JPH0270023 A JP H0270023A
- Authority
- JP
- Japan
- Prior art keywords
- steel strip
- rolls
- furnace
- meandering
- thin steel
- 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.)
- Granted
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 7
- 238000000137 annealing Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 9
- 229910052802 copper Inorganic materials 0.000 description 9
- 239000010949 copper Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/54—Furnaces for treating strips or wire
- C21D9/56—Continuous furnaces for strip or wire
- C21D9/562—Details
- C21D9/563—Rolls; Drums; Roll arrangements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、薄鋼帯の連続焼鈍ライン等において、銅帯の
左右蛇行を阻止すると共にヒートバックルの発生を防止
する通板方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a threading method that prevents the copper strip from meandering from side to side and prevents the occurrence of heat buckling in a continuous annealing line for thin steel strips. be.
（従来の技術）
銅帯の連続焼鈍設備の如く、多数のロールを介して通板
させるラインにおいては、操業時における鋼帯の蛇行現
象とヒートバックルの発生が解決を要する課題として提
起されている。(Prior art) In lines where the steel strip is passed through a large number of rolls, such as continuous annealing equipment for copper strips, the meandering phenomenon of the steel strip and the occurrence of heat buckling during operation have been raised as issues that need to be solved. .
つまり炉内において鋼帯が蛇行すると、炉壁に接触して
損傷を受け、これが銅帯の破断事故を招来することにも
なる。従って、これを防止する対策として、炉内のハー
スロールにクラウンを付設している。In other words, if the steel strip meanderes inside the furnace, it will come into contact with the furnace wall and be damaged, which may lead to a breakage accident of the copper strip. Therefore, as a measure to prevent this, a crown is attached to the hearth roll in the furnace.
一方、加熱・均熱帯で高温となった鋼帯は、降伏応力が
小さくなっており、この状態でクラウンを付設したハー
スロールに接触すると、板幅方向に不均一な張力が作用
し、表面がしわ状となるいわゆるヒートバックルが発生
する。このために、加熱・均熱帯の高温部ではクラウン
を小さくしているのが実状であるが、逆に蛇行が発生し
やすくなるという結果を招いている。On the other hand, a steel strip that has reached a high temperature in the heating/soaking zone has a small yield stress, and when it comes into contact with a crowned hearth roll in this state, uneven tension acts in the width direction of the strip, causing the surface to become rough. A wrinkle-like so-called heat buckle occurs. For this reason, the reality is that the crown is made smaller in the high-temperature section of the heating and soaking zone, but this actually results in meandering becoming more likely to occur.
また、通常の操業では、ヒートバックルの発生をＩＴ’
Ｖで観察し、発生が目視で確認されると、炉温を調整し
、銅帯の温度及び張力を下げるといった処置がとられ、
蛇行が発生した場合にはステアリングにより調整してい
る。In addition, during normal operation, it is possible to prevent the occurrence of heat buckling by
When the occurrence is visually confirmed by observation at V, measures are taken such as adjusting the furnace temperature and lowering the temperature and tension of the copper strip.
If meandering occurs, adjustments are made using the steering wheel.
（発明が解決しようとする課題）
銅帯の蛇行防止対策としてハースロールのクラランを大
きくすれば、逆にピー１−バックルが発生しやすくなる
ことから、実機のハースロールは、加熱・均熱帯の前半
では蛇行対策に主眼をおいてクラウンを大きくし、後半
ではヒートバックル対策に主眼をおいてクラウンを小さ
くするという手法が採られているがその効果は完全では
ない。(Problem to be solved by the invention) If the clarine of the hearth roll is made larger as a measure to prevent meandering of the copper strip, P1-buckling is more likely to occur. In the first half, the crown is made larger with a focus on countermeasures against meandering, and in the second half, the crown is made smaller with a focus on countermeasures against heat buckling, but the effect is not perfect.
本発明はかかる問題点を解決するためになされたもので
あり、ロールに蛇行を防止する自己修正機能をイ」与す
ると共にヒートバックルの発生を解消する通板方法を提
供することを目的としている。The present invention has been made to solve these problems, and aims to provide a sheet threading method that provides a roll with a self-correcting function to prevent meandering and eliminates the occurrence of heat buckling. .
（課題を解決するだめの手段）
ト記目的を達成するために、本発明の通板方法において
は、軸方向に径が減少するテーパーロールを−に１丁交
互に配置し、テーパーロールの蛇行に対する自己修正機
能により通板の安定性を保持するようにしているのであ
る。(Another Means for Solving the Problems) In order to achieve the above object, in the sheet threading method of the present invention, tapered rolls whose diameter decreases in the axial direction are arranged alternately in -, and the meandering of the tapered rolls is prevented. The stability of threading is maintained through a self-correction function.
（作 用）
本発明においては、方向を逆にして」−下交互に配置し
たテーパーロールに巻掛けられる銅帯は、一定方向に動
（ことなく自己修正されながら同じ位置を保ち、またロ
ールにはクラウンを付設していないためにヒートバック
ルの発生も解消される。(Function) In the present invention, the copper strips wound around the tapered rolls arranged alternately in opposite directions maintain the same position while self-correcting without moving in a certain direction, and Because it does not have a crown attached, the occurrence of heat buckling is also eliminated.
（実 施 例） 以下本発明の実施態様を例示図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on illustrative drawings.
即ち、第１図（ａ） （ｂ）は本発明を実施するロール
配置の基本構成を示すもので、１は」−ロール、２は下
ロールであって、それぞれの上下ロール１．２は、所定
のテーパー角度αを付設し、軸方向に径が減少するテー
パーロールであり、しかも上下向きを逆にして配置され
ている。That is, FIGS. 1(a) and 1(b) show the basic configuration of the roll arrangement for implementing the present invention, where 1 is a "-roll", 2 is a lower roll, and the upper and lower rolls 1.2 are as follows: This is a tapered roll that has a predetermined taper angle α and whose diameter decreases in the axial direction, and is arranged upside down.
ここで上ロール１にかかる鋼帯３は該ロール１の大径方
向へ動こうとし、また下ロール２にかかる鋼帯３ば該ロ
ール２の大径方向へ動こうとするが、その動きは上下相
殺され、自己修正的に同じ位置を保ち、蛇行現象は発生
しない。これら上下のロール１．２はテーパーロールで
あって従来のようにクラウンを付与していないことによ
り、ロールのフラット部とテーパ一部の境目が主因とな
って発生ずるし−Ｉ・バックルも解消する。Here, the steel strip 3 applied to the upper roll 1 tries to move in the direction of the larger diameter of the roll 1, and the steel strip 3 applied to the lower roll 2 tries to move in the direction of the larger diameter of the roll 2, but the movement is The top and bottom cancel each other out, maintain the same position in a self-correcting manner, and no meandering phenomenon occurs. These upper and lower rolls 1.2 are tapered rolls and are not crowned like conventional rolls, which eliminates the sagging and buckling that occurs mainly due to the boundary between the flat part and the tapered part of the rolls. .
ちなみに本発明の効果を実証するために、実機の１／４
規模の鋼帯通板ラインに本発明を適用し、テーパーロー
ルを配置した場合と、従来型のクラウン何ハースロール
を配置した場合を比較した。By the way, in order to demonstrate the effect of the present invention, 1/4 of the actual machine
The present invention was applied to a large-scale steel strip threading line, and a case where tapered rolls were arranged and a case where conventional crown hearth rolls were arranged were compared.
なお、この場合通板ラインの加熱炉はラジアントチュー
ブ加熱方式で４バス、冷却炉はガスジェノ１〜方式で４
パスとし、また本発明を適用した場合は第２図に示すよ
うに、加熱炉４の入側から冷却炉５の出側まで上下テー
パーロール１．２を交互に配置し、しかも各ロールのテ
ーパー角度αを０．５度とした。一方、従来型クラウン
付ロールのクラウンは全ロール０．１度とし、ロール径
φ２００胴のものを用いた。In this case, the heating furnace of the threading line is a 4-bath radiant tube heating method, and the cooling furnace is a 4-bath gas Geno 1 to 4-bath cooling furnace.
When the present invention is applied, upper and lower tapered rolls 1.2 are arranged alternately from the inlet side of the heating furnace 4 to the outlet side of the cooling furnace 5, as shown in FIG. The angle α was set to 0.5 degree. On the other hand, the crown of the conventional crowned roll was 0.1 degrees for all rolls, and the roll diameter was 200 mm.
そして、これらのラインに絞り用低炭素鋼Ａｌキルト鋼
（ＳＰＣＧ−５Ｄ）の寸法０．１胴厚×３００ｍ幅の銅
帯をライン速度３０ｍ／ｍｉｎ 、張力１ ｋｇ ／
ｎｕｎ ２で通板したところ下記表１に示す結果を得た
。Then, a copper strip of low carbon steel Al quilt steel for drawing (SPCG-5D) with dimensions 0.1 body thickness x 300 m width was placed on these lines at a line speed of 30 m/min and a tension of 1 kg/min.
When the plate was passed using nun 2, the results shown in Table 1 below were obtained.
表１
（発明の効果）
本発明は以上説明したように、鋼板の蛇行は上下交互に
配置したテーパーロールによる自己修正機能によって防
止され、同時にヒートバックルの発生も解消される。Table 1 (Effects of the Invention) As explained above, according to the present invention, meandering of the steel plate is prevented by the self-correcting function of the tapered rolls arranged alternately above and below, and at the same time, the occurrence of heat buckling is also eliminated.
第１図（ａ）（ｂ）は本発明を実施するロール配置の基
本構成図、第２図は銅帯通板ラインへの実施例を示す説
明図である。
１は上ロール、２は下ロール、３は銅帯、４は加熱炉、
５は冷却炉。
特許出願人 住友金属工業株式会社FIGS. 1(a) and 1(b) are basic configuration diagrams of roll arrangement for carrying out the present invention, and FIG. 2 is an explanatory diagram showing an example of application to a copper strip threading line. 1 is an upper roll, 2 is a lower roll, 3 is a copper strip, 4 is a heating furnace,
5 is a cooling furnace. Patent applicant: Sumitomo Metal Industries, Ltd.
Claims (1)
において、軸方向に径が減少するテーパーロールを上下
交互に配置し、これらテーパーロールの蛇行に対する自
己修正機能により通板の安定性を保持させることを特徴
とする薄鋼帯の通板方法。(1) In the line where thin steel strips are wound around rolls and threaded, tapered rolls whose diameter decreases in the axial direction are alternately arranged above and below, and the self-correction function of these tapered rolls against meandering improves the stability of threading. A method for threading a thin steel strip, characterized by retaining the following properties.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22113588A JPH0270023A (en) | 1988-09-02 | 1988-09-02 | Method of passing thin steel strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22113588A JPH0270023A (en) | 1988-09-02 | 1988-09-02 | Method of passing thin steel strip |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0270023A true JPH0270023A (en) | 1990-03-08 |
| JPH0564688B2 JPH0564688B2 (en) | 1993-09-16 |
Family
ID=16762006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22113588A Granted JPH0270023A (en) | 1988-09-02 | 1988-09-02 | Method of passing thin steel strip |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0270023A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR112013018066B1 (en) | 2011-02-18 | 2021-09-08 | Sulzer Management Ag | METHOD FOR PREPARING A POLYLACTIC ACID |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62158827A (en) * | 1985-12-28 | 1987-07-14 | Nippon Steel Corp | Method for correcting meandering of steel strip leveling steel strip |
-
1988
- 1988-09-02 JP JP22113588A patent/JPH0270023A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62158827A (en) * | 1985-12-28 | 1987-07-14 | Nippon Steel Corp | Method for correcting meandering of steel strip leveling steel strip |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0564688B2 (en) | 1993-09-16 |
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