JP2001239304A - Method of manufacturing metal foil - Google Patents
Method of manufacturing metal foilInfo
- Publication number
- JP2001239304A JP2001239304A JP2000053440A JP2000053440A JP2001239304A JP 2001239304 A JP2001239304 A JP 2001239304A JP 2000053440 A JP2000053440 A JP 2000053440A JP 2000053440 A JP2000053440 A JP 2000053440A JP 2001239304 A JP2001239304 A JP 2001239304A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- metal foil
- manufacturing metal
- peko
- final pass
- 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
Landscapes
- Metal Rolling (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、金属箔の製造方法
に関し、特に、ステンレス鋼やアルミニウム、銅その他
の金属を複数パスの冷間圧延により板厚0.1mm 以下の箔
に仕上げる金属箔の製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a metal foil, and more particularly to a method for manufacturing a metal foil for finishing stainless steel, aluminum, copper and other metals into a foil having a thickness of 0.1 mm or less by cold rolling in a plurality of passes. About the method.
【0002】[0002]
【従来の技術】板厚0.1mm 以下の金属箔を冷間圧延によ
り製造するときは、通常、複数パスの圧延を繰り返し行
って徐々に板厚を目標に近づける。かかるパススケジュ
ール条件のもとで形状不良の発生を防止する手段とし
て、例えば、特開平10−249407号公報ないし特開平11−
333502号公報に、最終パスにおいて、ヤング率の低いワ
ークロールを使用し、圧下率を10〜13%程度にして圧延
する方法が開示されている。2. Description of the Related Art When a metal foil having a thickness of 0.1 mm or less is produced by cold rolling, usually, a plurality of passes of rolling are repeated to gradually bring the thickness closer to a target. As means for preventing the occurrence of a shape defect under such a pass schedule condition, for example, JP-A-10-249407 to JP-A-11-249407
Japanese Patent No. 333502 discloses a method in which a work roll having a low Young's modulus is used in the final pass, and the rolling is performed at a rolling reduction of about 10 to 13%.
【0003】[0003]
【発明が解決しようとする課題】前記特開平10−249407
号公報や特開平11−333502号公報に開示された方法で
は、圧延後の耳伸び、腹伸び(図3)といった形状不良
の発生は抑制できるが、図2に示すような、縦スジ3間
に数10mm四方程度の小さな腹伸び4が散在するクロスバ
ックルと呼ばれる形状不良(以下、「ペコ」と称する)
の発生までは防止できない。なお、この「ペコ」の発生
するメカニズムは解明されていない。従来は、冷間圧延
後に常に焼鈍が行われ、ペコは焼鈍によって完全に消え
るため問題にならなかった。しかし、近年では、コスト
ダウンを目的として焼鈍工程を省略したハード材(圧延
まま材)を出荷するケースもある。このハード材の場合
は、ペコが存在すると客先での品質合格率が低下する問
題がある。SUMMARY OF THE INVENTION The above-mentioned Japanese Patent Application Laid-Open No. 10-249407.
In the method disclosed in Japanese Patent Application Laid-Open No. 11-333502 or Japanese Patent Application Laid-Open No. 11-333502, it is possible to suppress the occurrence of shape defects such as ear extension and belly extension after rolling (FIG. 3). However, as shown in FIG. A shape defect called a cross buckle in which small belly stretches 4 of several tens of squares are scattered (hereinafter referred to as "peco")
Cannot be prevented until the occurrence of Note that the mechanism by which this "peko" occurs is not elucidated. Conventionally, annealing has always been performed after cold rolling, and there was no problem because peco disappeared completely by annealing. However, in recent years, there is a case where a hard material (as-rolled material) in which the annealing step is omitted is shipped for the purpose of cost reduction. In the case of this hard material, there is a problem that the presence of peko reduces the quality acceptance rate at the customer.
【0004】そこで、本発明は、ハード材の品質合格率
を低下させるペコの発生を有効に防いで圧延できる金属
箔の製造方法を提供することを目的とする。Accordingly, an object of the present invention is to provide a method of manufacturing a metal foil which can be rolled while effectively preventing the occurrence of peko which lowers the quality acceptance rate of a hard material.
【0005】[0005]
【課題を解決するための手段】本発明者らは、上記目的
を達成すべく鋭意検討を重ねた結果、板厚0.1mm 以下の
金属箔を圧延する場合、最終パスの出側張力と圧下率と
を特定の範囲に制限することにより、ペコが発生しなく
なることを見いだし、本発明をなした。すなわち本発明
は、複数パスの冷間圧延により金属箔を製造するにあた
り、最終パスにおいて、出側張力を同側の被圧延材の変
形抵抗の1/2 以上とし、かつ、圧下率2%超6.5 %以下
で圧延することを特徴とする金属箔の製造方法である。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to achieve the above object, and as a result, when rolling a metal foil having a thickness of 0.1 mm or less, the output side tension and the rolling reduction of the final pass. The present invention has been made by finding that peko does not occur by restricting と to a specific range. That is, according to the present invention, in manufacturing a metal foil by cold rolling in a plurality of passes, in the final pass, the output side tension is set to at least 1/2 of the deformation resistance of the material to be rolled on the same side, and the rolling reduction is more than 2%. A method for producing a metal foil, characterized in that rolling is performed at 6.5% or less.
【0006】[0006]
【発明の実施の形態】本発明者らは、ワークロール径55
mmの20段圧延機を用いて0.3mm 厚×900mm 幅のフェライ
ト系ステンレス鋼薄帯を複数パスで圧延して0.05mm厚の
箔に仕上げる金属箔製造工程において、最終パスの圧延
荷重、出側張力を種々変えて製品のペコ発生状況(ペコ
症状という)を観察し、◎無、○良好、△やや不良、×
不良の4段階で評価した。図1は、最終パスの出側張
力、圧延荷重とペコ症状の関係を示すグラフである。BEST MODE FOR CARRYING OUT THE INVENTION
In a metal foil manufacturing process of rolling a 0.3 mm thick x 900 mm wide ferritic stainless steel ribbon in multiple passes using a 20 mm high rolling mill to finish it into a 0.05 mm thick foil, the rolling load and exit side of the final pass Observe the state of peko occurrence of the product by changing the tension variously. ◎ No, ○ Good, △ Slightly poor, ×
The evaluation was made in four stages of failure. FIG. 1 is a graph showing the relationship between the exit side tension, the rolling load, and the peko symptom in the final pass.
【0007】図1より、出側張力が被圧延材の変形抵抗
Kの1/2 に相当する480MPa未満では、ペコ症状がやや不
良ないし不良となる。出側張力480MPa以上の場合、圧延
荷重が1MN以下(圧下率≒2%以下)では圧下されず前
パスのペコがそのまま残り、一方、圧延荷重が5MN以上
では圧下率が8%を超えてペコ症状が不良となるが、圧
下率が6.5 %以下となる圧延荷重2〜4MNで圧延したも
のは、ペコ症状が良好ないし無となる。According to FIG. 1, when the exit side tension is less than 480 MPa corresponding to half the deformation resistance K of the material to be rolled, the peko symptom becomes slightly poor or poor. When the output side tension is 480MPa or more, if the rolling load is 1MN or less (rolling rate ≒ 2% or less), the rolling is not reduced and the peco of the previous pass remains as it is. On the other hand, if the rolling load is 5MN or more, the rolling rate exceeds 8%. Although the symptoms are poor, rolling at a rolling load of 2 to 4 MN at which the rolling reduction is 6.5% or less results in good or no peko symptoms.
【0008】よって、出側張力を同側の被圧延材の変形
抵抗の1/2 以上とし、かつ、圧下率2%超6.5 %以下で
圧延する本発明によれば、金属箔圧延におけるペコの発
生を有効に防止することができる。Therefore, according to the present invention, in which the output side tension is set to not less than 1/2 of the deformation resistance of the material to be rolled on the same side and the rolling is performed at a rolling reduction of more than 2% and not more than 6.5%, the peco in the metal foil rolling is reduced. Generation can be effectively prevented.
【0009】[0009]
【実施例】ワークロール径55mmの20段圧延機を用いて複
数パスの冷間圧延により板厚0.1〜0.03mmで板幅 900mm
の20Cr−5Al合金鋼箔(変形抵抗K=960MPa)を製造す
る工程に本発明を実施した。このとき、最終パス出側張
力を670MPa(≒0.7 K)とし、かつ最終パス圧下率を3
〜6%とした。なお、この圧延機では圧下率3〜6%に
圧延荷重200 〜300MN が対応するので、最終パス圧延荷
重を200 〜300MN に設定して操業した。[Example] Using a 20-high rolling mill with a work roll diameter of 55 mm, multiple passes of cold rolling are used to obtain a thickness of 0.1 to 0.03 mm and a width of 900 mm
The present invention was carried out in the step of producing a 20Cr-5Al alloy steel foil (deformation resistance K = 960 MPa). At this time, the final pass exit side tension was set to 670 MPa (≒ 0.7 K) and the final pass rolling reduction was set to 3
To 6%. In this rolling mill, a rolling load of 200 to 300 MN corresponds to a rolling reduction of 3 to 6%, so that the operation was performed with the final pass rolling load set to 200 to 300 MN.
【0010】その結果、従来ではペコ発生のため40%台
に低迷していたハード材合格率を、一挙に100 %まで到
達させることができた。[0010] As a result, the pass rate of the hard material, which had hitherto been sluggish to the 40% range due to the occurrence of peko, can be reached all at once to 100%.
【0011】[0011]
【発明の効果】かくして本発明によれば、金属箔の圧延
製造においてペコの発生を完全に防止でき、品質のよい
冷延ままハード材を高歩留りで製造できるようになると
いう優れた効果を奏する。As described above, according to the present invention, it is possible to completely prevent the occurrence of peko in the rolling production of a metal foil, and to produce an excellent effect that a hard material can be produced at a high yield while cold rolling with good quality. .
【図1】最終パスの出側張力、圧延荷重とペコ症状の関
係を示すグラフである。FIG. 1 is a graph showing the relationship between the exit side tension, rolling load, and peko symptom in the final pass.
【図2】ペコの外観を示す模式図である。FIG. 2 is a schematic diagram showing the appearance of Peko.
【図3】耳伸び、腹伸びの様子を示す図である。FIG. 3 is a view showing a state of ear extension and belly extension.
1 ワークロール 2 圧延方向 3 縦スジ 4 腹伸び DESCRIPTION OF SYMBOLS 1 Work roll 2 Rolling direction 3 Vertical stripe 4 Belly stretch
───────────────────────────────────────────────────── フロントページの続き (72)発明者 星野 将史 千葉県千葉市中央区川崎町1番地 川崎製 鉄株式会社千葉製鉄所内 (72)発明者 斎数 正晴 千葉県千葉市中央区川崎町1番地 川崎製 鉄株式会社千葉製鉄所内 Fターム(参考) 4E002 AA07 AA08 AD13 BC01 BC03 BC05 CA09 CB01 CB03 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masashi Hoshino 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Prefecture Inside the Chiba Works, Chiba Works (72) Inventor Masaharu Saika 1 Kawasaki-cho, Chuo-ku, Chiba-shi, Chiba Address F-term (reference) at Kawasaki Steel Corporation Chiba Works 4E002 AA07 AA08 AD13 BC01 BC03 BC05 CA09 CB01 CB03
Claims (1)
するにあたり、最終パスにおいて、出側張力を同側の被
圧延材の変形抵抗の1/2 以上とし、かつ、圧下率2%超
6.5 %以下で圧延することを特徴とする金属箔の製造方
法。1. In producing a metal foil by cold rolling in a plurality of passes, in the final pass, the output side tension is set to not less than 1/2 of the deformation resistance of the material to be rolled on the same side, and the rolling reduction is more than 2%.
A method for producing a metal foil, comprising rolling at 6.5% or less.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000053440A JP2001239304A (en) | 2000-02-29 | 2000-02-29 | Method of manufacturing metal foil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000053440A JP2001239304A (en) | 2000-02-29 | 2000-02-29 | Method of manufacturing metal foil |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2001239304A true JP2001239304A (en) | 2001-09-04 |
Family
ID=18574825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2000053440A Pending JP2001239304A (en) | 2000-02-29 | 2000-02-29 | Method of manufacturing metal foil |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2001239304A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110695088A (en) * | 2019-10-17 | 2020-01-17 | 安徽工业大学 | Combined forming method for preparing high-strength ultra-thin strip |
-
2000
- 2000-02-29 JP JP2000053440A patent/JP2001239304A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110695088A (en) * | 2019-10-17 | 2020-01-17 | 安徽工业大学 | Combined forming method for preparing high-strength ultra-thin strip |
CN110695088B (en) * | 2019-10-17 | 2021-06-01 | 安徽工业大学 | Combined forming method for preparing high-strength ultra-thin strip |
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