JP3446723B2 - Cold rolling method - Google Patents
Cold rolling methodInfo
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- JP3446723B2 JP3446723B2 JP2000178756A JP2000178756A JP3446723B2 JP 3446723 B2 JP3446723 B2 JP 3446723B2 JP 2000178756 A JP2000178756 A JP 2000178756A JP 2000178756 A JP2000178756 A JP 2000178756A JP 3446723 B2 JP3446723 B2 JP 3446723B2
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- cold rolling
- coil
- oil
- equipment
- roll
- Prior art date
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、冷間圧延方法、特
に冷延鋼板でのガウジ疵とロール疵の発生防止を図った
冷間圧延方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold rolling method, and more particularly to a cold rolling method for preventing generation of gouge defects and roll defects in cold rolled steel sheet.
【０００２】[0002]
【従来の技術】冷間圧延鋼板の製造において、冷間圧延
前の工程では、酸洗処理と呼ばれる表面の酸化鉄除去
(脱スケール) 処理が行われる。2. Description of the Related Art In the production of cold rolled steel sheet, in the process before cold rolling, iron oxide removal on the surface called pickling treatment
(Descaling) processing is performed.
【０００３】この酸洗されたコイルは、次工程である冷
間圧延工程へ供給されるものと、酸洗後コイルとして客
先に出荷されるものとに別れる。酸洗後出荷されるコイ
ルには、客先での処理工程でスリ疵を発生させないため
と、途中での錆の発生を防止するために防錆油を塗油し
ている。The pickled coils are divided into those that are supplied to the cold rolling step which is the next step and those that are shipped to the customer as pickled coils. The coil that is shipped after pickling is coated with rust preventive oil in order to prevent scratches from being generated in the customer's treatment process and to prevent rust from being generated during the process.
【０００４】しかし、次の処理工程が連続式冷間圧延工
程である場合、油を塗布したコイルを用いると、圧延機
入側に設けられたルーパー装置前後に設けられているブ
ライドルロールにおいてスリップ現象が発生し、円滑な
操業が不可能となる。However, when the next processing step is a continuous cold rolling step, when an oil-coated coil is used, a slip phenomenon occurs in bridle rolls provided before and after the looper device provided on the inlet side of the rolling mill. Occurs, and smooth operation becomes impossible.
【０００５】そのため、冷間圧延工程向けに供給される
鋼板については、通常は鋼板へ油を塗布しないコイルを
用いて次工程における冷間圧延を行っている。しかし、
スリップ現象は防止できるが、今度は、冷間圧延を行う
までのコイル搬送、扱い時に表面疵が生じ、圧延に際し
て鋼板表面のスリ疵 (ガウジ疵) となり、それが原因で
発生するロール疵の品質不良が発生し、歩留まり悪化を
招いている。Therefore, the steel sheet supplied for the cold rolling step is usually cold-rolled in the next step using a coil which does not apply oil to the steel sheet. But,
The slip phenomenon can be prevented, but this time, surface flaws occur during coil conveyance and handling until cold rolling, which causes scratches on the surface of the steel sheet during rolling (gouge flaws), which causes the quality of roll flaws. Defects occur, leading to poor yield.
【０００６】[0006]
【発明が解決しようとする課題】このような鋼板の冷間
圧延に際して生じるスリ疵発生原因の一つは、焼付きで
ある。コイル状に巻かれた鋼板は、酸洗設備出側で巻き
取られる時から、冷間圧延設備で払い出しが終わるまで
に、様々な形態で運搬、搬送される。Seizure is one of the causes of the occurrence of scratches during cold rolling of such a steel sheet. The steel sheet wound in a coil shape is transported and transported in various forms from the time it is wound on the delivery side of the pickling equipment until the time when it is paid out by the cold rolling equipment.
【０００７】例えばコイル置場へ段積みする場合等にお
いて、油の塗布がないと鋼板表面間で焼付きが発生し、
疵を発生させる。また、鋼板をコイル状に巻き取る、ま
たは、コイルから帯状へ払い出す際の巻き締まり現象に
よっても、または、搬送ロールと鋼板間のスリップによ
っても同様なスリ疵が発生する。[0007] For example, in the case of stacking in a coil yard, if oil is not applied, seizure occurs between steel plate surfaces,
Causes flaws. Further, similar scratches may occur due to a winding tightening phenomenon when the steel sheet is wound into a coil shape or when it is paid out from the coil into a strip shape, or due to a slip between the transport roll and the steel sheet.
【０００８】このようなスリ疵は、酸洗における巻き取
りトップ部分の巻き取り張力不安定時、鋼板の平坦不安
定部分でも発生している。また、次工程の連続式冷間圧
延工程では、先行材コイルのボトム部分と後行材コイル
のトップ部分とを溶接し、そのラインの入側運転張力に
よる通板が行われる際に、冷間圧延設備の払い出し装置
のコイル外周部分で巻き締まりが発生し、同様なスリ疵
が発生する。[0008] Such scratches are also generated in the unstable flat portion of the steel plate when the winding tension of the winding top portion in the pickling is unstable. Further, in the continuous cold rolling process of the next process, the bottom part of the preceding material coil and the top part of the following material coil are welded, and when cold rolling is performed by the entry side operating tension of the line, cold rolling is performed. Winding tightening occurs at the outer circumference of the coil of the payout device of the rolling equipment, and similar scratches occur.
【０００９】このようなスリ疵を鋼板表面に持ったまま
圧延してしまうと、この部分がガウジ疵と呼ばれる品質
不良部分となり、２次的には、ロール疵の起点ともなっ
てしまう。If such a pick-up flaw is held on the surface of the steel sheet and rolled, this portion becomes a poor quality portion called a gouge flaw, and secondarily also becomes a starting point of roll flaw.
【００１０】従来この問題を解決するためには、特公平
７−80007 号公報 (冷間圧延鋼板のガウジ疵防止方法)
のように、酸洗後に鋼板表面に脂肪酸金属塩水溶液を塗
布し、その部分を乾燥させ、冷間圧延設備へ送る等の手
段を用いている。しかし、これらの方法では、水溶液乾
燥のための設備が必要で、水溶液の消費が激しく、効率
的な方法ではない。Conventionally, in order to solve this problem, Japanese Examined Patent Publication No. 7-80007 (a method for preventing gouge defects in cold rolled steel sheets)
As described above, after the pickling, a solution of a fatty acid metal salt aqueous solution is applied to the surface of the steel sheet, the portion is dried, and sent to a cold rolling facility. However, these methods require a facility for drying the aqueous solution, consume much aqueous solution, and are not efficient methods.
【００１１】ここに、本発明の課題は、冷間圧延鋼板の
スリ疵( ガウジ疵) 、ロール疵を簡便な手段でもってか
つ効果的に防止できる冷間圧延方法を提供することであ
る。より具体的な課題は、冷間圧延設備入側での鋼板の
スリップ、蛇行を防止し、一方、冷間圧延設備入側払い
出し時に発生するガウジ疵と、そのガウジ疵を冷間圧延
した際に発生するロール疵の発生を防止する冷間圧延方
法を提供することである。An object of the present invention is to provide a cold rolling method capable of effectively preventing scratches (gouge defects) and roll defects of a cold rolled steel sheet with a simple means. A more specific problem is to prevent slippage and meandering of the steel sheet on the entry side of the cold rolling equipment, while on the other hand, the gouge flaws that occur when paying out on the entry side of the cold rolling equipment and when the gouge flaws are cold rolled. It is an object of the present invention to provide a cold rolling method for preventing the occurrence of roll flaws.
【００１２】[0012]
【課題を解決するための手段】上記目的を達成するため
に、本発明者らは種々検討を重ねた結果、鋼板の酸洗設
備において、出側巻き取りトップ部分と、ボトム部分に
のみ塗油を行い、次いで冷間圧延に際しては、その部分
を冷間圧延設備入側に設置された鋼板清浄装置（例：鋼
板ブラッシング装置) にて研削除油することが効果的で
あることを知り、本発明を完成した。[Means for Solving the Problems] In order to achieve the above object, the inventors of the present invention have conducted various studies, and as a result, in pickling equipment for steel sheets, only the outlet side winding top portion and the bottom portion are coated with oil. Then, during cold rolling, it was found that it is effective to grind and remove that portion with a steel plate cleaning device (example: steel plate brushing device) installed on the inlet side of the cold rolling equipment. Completed the invention.
【００１３】すなわち、酸洗済コイルの巻き始めおよび
コイルの払い出し時にトップ部分およびボトム部分でコ
イル表面を擦ったりすることにより、引っかき疵が発生
する。その疵を冷間圧延するとガウジ疵となり、表面不
良としてスクラップおよび格下げとなっている。That is, scratches are generated by rubbing the coil surface at the top portion and the bottom portion at the beginning of winding the pickled coil and when the coil is discharged. When the flaw is cold-rolled, it becomes a gouge flaw, which is scraped and downgraded as a surface defect.
【００１４】そこで本発明にあっては、酸洗終了後に、
酸洗済みコイルのボトム部分およびトップ部分に防錆用
の油を塗布するのであり、これにより、コイルの搬送、
運搬、そして取り扱い時に生じることがある引っかき疵
の発生が大幅に低減され、スクラップおよび格下げ量が
減少するという効果が得られる。Therefore, in the present invention, after completion of pickling,
Oil for rust prevention is applied to the bottom and top of the pickled coil.
The effect of scratches that may occur during transportation and handling is greatly reduced, and the amount of scrap and downgrade is reduced.
【００１５】ところで、ガウジ疵のもととなる引っかき
疵の中に、かさぶた状のものがあって、圧延する際、か
さぶた状の破片がとれて、圧延ロールがその破片を噛み
込むことにより、ロール表面が疵付いて、その箇所が起
点となってロール疵を発生している。しかし、本発明で
は引っかき疵そのものが低減することにより、それに起
因するロール疵そのものをも低減することができる。By the way, there is a scab-like thing among the scratches which are the source of gouge defects, and when rolling, scab-like fragments are taken off, and the rolling roll bites the fragments to cause rolls. The surface is flawed, and that point is the starting point, causing roll flaws. However, in the present invention, since the scratches themselves are reduced, the roll defects themselves caused by the scratches can also be reduced.
【００１６】したがって、本発明によれば、ガウジ疵そ
のもの、およびガウジ疵を起点としたロール疵も抑制す
ることができるという優れた作用効果が期待される。こ
こに、本発明は、次の通りである。Therefore, according to the present invention, it is expected to have an excellent function and effect that the gouge flaw itself and the roll flaw originating from the gouge flaw can be suppressed. Here, the present invention is as follows.
【００１７】(1) 酸洗設備および冷間圧延設備が非連続
である冷間圧延設備を用い、酸洗済み先行コイルに酸洗
済み後行コイルを溶接して連続的に冷間圧延する方法で
あって、酸洗設備出側においてコイルトップ部分および
コイルボトム部分のみに塗油した酸洗済み鋼板をコイル
状に巻き取ることを特徴とする冷間圧延方法。(1) A method of continuously cold rolling by welding a pickled preceding coil to a pickled preceding coil using a cold rolling facility in which the pickling equipment and the cold rolling equipment are discontinuous A cold rolling method characterized in that a pickled steel sheet coated with oil only on the coil top portion and the coil bottom portion on the outlet side of the pickling equipment is wound into a coil shape.
【００１８】(2) 前記冷間圧延設備内のブライドルロー
ル手前に設けられた鋼板清浄装置にて、前記コイルのト
ップ部分およびボトム部分から除油した後、冷間圧延す
ることを特徴とする上記(1) 記載の冷間圧延方法。(2) The steel sheet cleaning device provided in front of the bridle roll in the cold rolling equipment removes oil from the top portion and the bottom portion of the coil, and then cold rolls. (1) The cold rolling method described.
【００１９】(3) 前記コイルのトップ部分およびボトム
部分の塗油する部分の長さが、前記冷間圧延設備払い出
し装置から該冷間圧延設備内の前記洗浄装置手前に設け
られた溶接機までの距離プラス、当該コイルのコイル外
径円周×10倍を越えないことを特徴とする上記(1) また
は(2) 記載の冷間圧延方法。(3) The length of the portion to be oiled at the top portion and the bottom portion of the coil is from the cold rolling facility payout device to the welding machine provided in front of the cleaning device in the cold rolling facility. And the coil outer diameter circumference of the coil x 10 times are not exceeded, and the cold rolling method according to (1) or (2) above.
【００２０】(4) 前記清浄装置がブラシロールであるこ
とを特徴とする上記(2) 記載の冷間圧延方法。
(5) 前記コイルのトップ部分およびボトム部分に塗油す
る油が脂肪酸を主体とした油であり、塗油量が0.5 〜3.
0g/m2 であることを特徴とする上記(1) ないし(4) のい
ずれかに記載の冷間圧延方法。(4) The cold rolling method according to (2), wherein the cleaning device is a brush roll. (5) The oil applied to the top and bottom of the coil is an oil mainly composed of fatty acids, and the amount of oil applied is 0.5 to 3.
The cold rolling method according to any one of (1) to (4) above, wherein the cold rolling method is 0 g / m 2 .
【００２１】[0021]
【発明の実施の形態】次に、添付図面を参照しながら、
本発明をさらに詳細に説明する。本発明を実施する鋼板
の酸洗設備、冷間圧延設備の一部をそれぞれ図１(a) 、
(b) に示す。DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, referring to the attached drawings,
The present invention will be described in more detail. Fig. 1 (a) shows a part of a steel sheet pickling facility and a cold rolling facility for carrying out the present invention, respectively.
Shown in (b).
【００２２】すなわち、本発明によれば、酸洗設備、冷
間圧延設備が非連続に設けられている。つまり酸洗設備
の出側では、図１(a) に示すように、鋼板１は一旦コイ
ルに巻き取られ、次に、これが払い出されて今度は冷間
圧延が行われる。このときの冷間圧延設備が連続式圧延
設備である。本発明によれば図１(b) に示すようにその
連続式冷間圧延設備の入側には、溶接機６からルーパー
手前のブライドル装置10までの間に、鋼板清浄装置、例
えば湿式または乾式の鋼板ブラッシング装置７〜９を有
する。図示例ではリンガーロール７、９およびブラシロ
ール８から構成される。That is, according to the present invention, the pickling equipment and the cold rolling equipment are discontinuously provided. That is, on the outlet side of the pickling equipment, as shown in FIG. 1 (a), the steel sheet 1 is once wound into a coil, then is delivered and cold rolled this time. The cold rolling equipment at this time is a continuous rolling equipment. According to the present invention, as shown in FIG. 1 (b), on the inlet side of the continuous cold rolling equipment, between the welding machine 6 and the bridle device 10 before the looper, a steel plate cleaning device, for example, a wet or dry type is used. Steel plate brushing devices 7-9. In the illustrated example, it is composed of ringer rolls 7 and 9 and a brush roll 8.
【００２３】まず、鋼板上のガウジ疵、ロール疵を防止
するために、酸洗工程の出側にて塗油 (油は脂肪酸を主
体とした油で) を行い、塗油量を0.5 〜3.0g/m2 とす
る。このときの塗油長さは最大、冷間圧延設備の払い出
し装置５から溶接機６までの距離プラス、当該コイルの
コイル外径円周×10倍以内の長さを言う。First, in order to prevent gouge flaws and roll flaws on the steel sheet, oil is applied (the oil is an oil mainly composed of fatty acids) on the outlet side of the pickling process, and the amount of oil applied is 0.5 to 3.0. g / m 2 The oiling length at this time is the maximum, the distance from the payout device 5 of the cold rolling equipment to the welding machine 6 plus the length of the coil outer diameter circumference of the coil × 10 times or less.
【００２４】図１(b) に示すように、巻き取り装置前に
設置された塗油装置３にて酸洗後の鋼板１の両面もしく
は片面へ塗油を行うが、この塗油方式はスプレーによる
ものに限らず、塗油される油の量が0.5 〜3.0g/m2 の範
囲で管理されていればどのような方法でもかまわない。As shown in FIG. 1 (b), oil is applied to both sides or one side of the steel plate 1 after pickling with an oil applying device 3 installed in front of the winding device. However, any method may be used as long as the amount of oil to be applied is controlled within the range of 0.5 to 3.0 g / m 2 .
【００２５】この塗油範囲は、図２に示すように、0.5g
/m2 より少ない場合は油による鋼板間スリ疵の防止効果
が得られず、逆に多すぎる(3.0g/m2超) と、次工程払い
出し装置から溶接機までの通板作業において、鋼板がロ
ールに噛み込まず、困難を極める結果となる。This oiling range is 0.5 g as shown in FIG.
If it is less than / m 2, the effect of preventing scratches between steel plates due to oil cannot be obtained, and conversely if it is too much (more than 3.0 g / m 2 ), the steel plate will be Does not get caught in the roll, resulting in extreme difficulty.
【００２６】本発明で使用する塗油の油は脂肪酸を主体
とした油であるが、その他鉱物油、合成エステル、油
脂、圧延油、植物油等であってもよい。本発明の場合、
油を塗布することから乾燥は必要としない。The oil of the coating oil used in the present invention is an oil mainly composed of fatty acids, but may be other mineral oils, synthetic esters, fats and oils, rolling oils, vegetable oils and the like. In the case of the present invention,
No drying is required as it is oiled.
【００２７】クレーンによるコイル段積み、その他の手
段による搬送時にコイル内外周に発生する鋼板間滑り、
または、冷間圧延設備における溶接完了後の鋼板張力が
かかった瞬間の、払い出し装置によるコイル外周のスリ
疵を軽減することが必要となる。上記以外に発生するス
リ疵は比較的疵の程度が軽く、圧延後にガウジ疵として
残らない。Coil stacking by a crane, slip between steel plates generated on the inner and outer circumferences of the coil during transportation by other means,
Alternatively, it is necessary to reduce the scratches on the outer circumference of the coil by the payout device at the moment when the steel plate tension is applied after the completion of welding in the cold rolling equipment. Scratches that occur other than the above have a relatively small degree of flaw and do not remain as gouge flaws after rolling.
【００２８】さらに、この塗油部分が冷間圧延設備のル
ーパー前ブライドルロールに達した際に、鋼板−ブライ
ドルロール表面間のくさび効果により油膜が形成され、
そのためスリップが生じてしまうので、この防止のた
め、塗油部分をルーパー前ブライドルロールの前に設置
された鋼板清浄装置、例えば鋼板ブラッシング装置にて
ブラシ研削除油を行う。Further, when this oiled portion reaches the bridle roll before the looper of the cold rolling equipment, an oil film is formed by the wedge effect between the steel plate and the surface of the bridle roll,
As a result, slippage occurs, and in order to prevent this, brushing removal oil is applied to the oiled portion by a steel plate cleaning device installed in front of the looper front bridle roll, for example, a steel plate brushing device.
【００２９】ここに、「くさび効果」は、鋼板上の油が
ブライドルロール表面に吸い込まれる現象をいい、くさ
び状に油がロールと鋼板との間に侵入してきて摩擦係数
を低下させるのである。Here, the "wedge effect" is a phenomenon in which the oil on the steel plate is sucked into the surface of the bridle roll, and the oil enters in a wedge shape between the roll and the steel plate to reduce the friction coefficient.
【００３０】本発明にあっては、塗油長さを確保してガ
ウジ疵の発生防止をはかるが、塗油することによるロー
ルとスリップを考慮に入れて塗油部分がブライドルロー
ルにかからないようにしている。また、塗油を除去する
際、ブラシロールを使用するが、ブラシの寿命を考慮に
入れて塗油長さを決定している。In the present invention, the oiling length is secured to prevent the occurrence of gouge defects. However, taking into consideration the roll and slip due to oiling, the oiled portion is prevented from being applied to the bridle roll. ing. Further, a brush roll is used to remove the oil, but the oil length is determined in consideration of the life of the brush.
【００３１】従来このブラッシング装置は、溶接前後の
溶接屑等を除去するために使用されていたが、本発明の
ガウジ疵、ロール疵低減方法においては溶接部と塗油部
分を同時に研削ブラッシングする手段として用いた。Conventionally, this brushing device has been used to remove welding debris and the like before and after welding, but in the method for reducing gouge defects and roll defects of the present invention, means for simultaneously grinding and brushing the welded portion and the oiled portion. Used as.
【００３２】この鋼板ブラッシング装置の適正使用によ
りブラシの寿命等も改善できる。また、酸洗工程出側の
巻き取りに関しては、グリップバー巻き取り方式とベル
トラッパー巻き取り方式があるが、この内径部分の巻き
締まり疵の程度を軽減するためには、ベルトラッパー巻
き取り方式の方が有利である。Proper use of the steel plate brushing device can improve the life of the brush. Regarding the winding on the output side of the pickling step, there are a grip bar winding method and a belt wrapper winding method.To reduce the degree of tightening flaws on the inner diameter part, the belt wrapper winding method is used. Is more advantageous.
【００３３】かくして、本発明によれば、冷間圧延設備
入側での鋼板のスリップ、蛇行を防止し、冷間圧延設備
入側払い出し時に発生するガウジ疵と、そのガウジ疵を
冷間圧延した際に発生するロール疵の発生を効果的に防
止することができる。Thus, according to the present invention, slippage and meandering of the steel sheet on the entry side of the cold rolling equipment are prevented, and the gouge flaws generated at the time of paying out on the entry side of the cold rolling equipment and the gouge flaws are cold rolled. It is possible to effectively prevent the occurrence of roll flaws that occur at that time.
【００３４】[0034]
【実施例】本発明の作用効果を実施例に基づきさらに具
体的に説明する。熱間圧延鋼板を図１に示す酸洗工程で
酸洗し、酸洗工程の出側にてコイルのトップ部分40ｍお
よびボトム部分40ｍに潤滑油1.0 g/m2を塗油し、コイル
に巻き取った。EXAMPLES The operational effects of the present invention will be described more specifically based on examples. The hot-rolled steel sheet is pickled in the pickling process shown in Fig. 1, and on the outlet side of the pickling process, the top 40m and bottom 40m of the coil are lubricated with 1.0 g / m 2 of lubricating oil and wound on the coil. I took it.
【００３５】なお、上記塗油長さは、冷間圧延設備払い
出し装置から該冷間圧延設備内の溶接機までの距離プラ
ス、当該コイルのコイル外径円周×10倍以内の長さに該
当するものである。The above-mentioned oil coating length corresponds to the distance from the cold-rolling facility payout device to the welding machine in the cold-rolling facility plus the coil outer diameter circumference of the coil × 10 times or less. To do.
【００３６】この鋼板コイルを搬送し、冷間圧延設備払
い出し装置にて払いだし、塗油部分を湿式鋼板ブラッシ
ング装置にてブラッシングを実施し、冷間圧延を行っ
た。その結果、ブライドルロールでのスリップの発生も
なく、冷間圧延後には、ガウジ疵のない表面のきれいな
鋼板が得られた。This steel sheet coil was conveyed and discharged by a cold rolling equipment discharging device, and the oiled portion was brushed by a wet steel plate brushing device to perform cold rolling. As a result, no slippage occurred on the bridle roll, and after cold rolling, a steel plate with a clean surface without gouge defects was obtained.
【００３７】[0037]
【発明の効果】本発明は、以上説明したように構成され
ているので、鋼板の酸洗設備出側にて塗油を行い、コイ
ルに一旦巻取り、後工程の冷間圧延設備入側にてその部
分をブラッシング等により除油することにより、塗油量
および範囲を最小量に押さえることができ、ブラシロー
ルの寿命も長く、冷間圧延設備の操業安定性も確保でき
る。かつガウジ疵とロール疵の発生のない表面のきれい
な鋼板を得ることができる。EFFECTS OF THE INVENTION Since the present invention is configured as described above, oil is applied on the outlet side of a steel sheet for pickling equipment, and once wound on a coil, and then applied to the inlet side of the cold rolling equipment for the subsequent process. By removing oil by brushing or the like at the edge, the amount of oil applied and the range can be kept to a minimum, the life of the brush rolls can be extended, and the operational stability of the cold rolling equipment can be secured. In addition, it is possible to obtain a steel plate with a clean surface that is free from gouge defects and roll defects.
【００３８】この結果、製品歩留まりは従来99.5％であ
ったのが99.8％に向上した。また、ブラシロールの寿命
が１年から２年へ延び、冷間圧延設備入側での板のスリ
ップによる操業阻害が皆無となった。As a result, the product yield was improved from 99.5% to 99.8%. In addition, the life of the brush roll was extended from 1 year to 2 years, and there was no obstruction of operation due to the slip of the plate on the entry side of the cold rolling equipment.
【図１】本発明を実施する鋼板の酸洗設備、冷間圧延設
備の一部を示す模式的説明図であり、図１(a) は酸洗設
備出側のコイル巻取りの様子を、図１(b) は冷間圧延設
備の入側のコイル塗油の様子をそれぞれ模式的に示す。FIG. 1 is a schematic explanatory view showing a part of a steel sheet pickling equipment and a cold rolling equipment for carrying out the present invention. FIG. 1 (a) shows a state of coil winding on the outlet side of the pickling equipment, Fig. 1 (b) schematically shows the state of oil coating on the inlet side of the cold rolling equipment.
【図２】塗油量とすり疵、スリップとの関係を示すグラ
フである。FIG. 2 is a graph showing the relationship between the amount of oil applied and scratches and slips.
１：鋼板、２：酸洗出側ブライドルロール、 ３：酸洗出側塗油装置、４：酸洗出側巻き取り装置、 ５：冷間圧延設備払い出し装置、６：溶接機、 ７、９：リンガーロール、８：ブラシロール、 10：冷間圧延設備ルーパー前ブライドルロール 1: Steel plate, 2: Pickling side bridle roll, 3: pickling side oiling device, 4: pickling side winding device, 5: Cold rolling facility payout device, 6: Welder, 7, 9: Ringer roll, 8: Brush roll, 10: Cold rolling equipment bridle roll before looper
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) B21C 45/00 - 49/00 B21B 45/02 310 B21B 45/02 330 ─────────────────────────────────────────────────── ─── Continuation of the front page (58) Fields surveyed (Int.Cl. 7 , DB name) B21C 45/00-49/00 B21B 45/02 310 B21B 45/02 330
Claims (5)
る冷間圧延設備を用い、酸洗済み先行コイルに酸洗済み
後行コイルを溶接して連続的に冷間圧延する方法であっ
て、酸洗設備出側においてコイルトップ部分およびコイ
ルボトム部分のみに塗油した酸洗済み鋼板をコイル状に
巻き取ることを特徴とする冷間圧延方法。1. A method for continuously cold rolling by welding a pickled succeeding coil to a pickled preceding coil using a cold rolling apparatus in which the pickling equipment and the cold rolling equipment are discontinuous. A cold rolling method characterized in that the pickled steel sheet, which is oiled only on the coil top portion and the coil bottom portion, is wound into a coil shape on the outlet side of the pickling equipment.
前に設けられた鋼板清浄装置にて、前記コイルのトップ
部分およびボトム部分から除油した後、冷間圧延するこ
とを特徴とする請求項１記載の冷間圧延方法。2. A steel sheet cleaning device provided in front of a bridle roll in the cold rolling equipment, after removing oil from the top portion and the bottom portion of the coil, cold rolling. The cold rolling method described in 1.
の塗油する部分の長さが、前記冷間圧延設備払い出し装
置から該冷間圧延設備内の前記洗浄装置手前に設けられ
た溶接機までの距離プラス、当該コイルのコイル外径円
周×10倍を越えないことを特徴とする請求項１または２
記載の冷間圧延方法。3. The length of the portion to be oiled of the top portion and the bottom portion of the coil is from the cold rolling equipment payout device to the welding machine provided in front of the cleaning device in the cold rolling equipment. The distance plus the outer circumference of the coil of the coil does not exceed 10 times the circumference of the coil.
The cold rolling method described.
特徴とする請求項２記載の冷間圧延方法。4. The cold rolling method according to claim 2, wherein the cleaning device is a brush roll.
に塗油する油が脂肪酸を主体とした油であり、塗油量が
0.5 〜3.0g/m2 であることを特徴とする請求項１ないし
４のいずれかに記載の冷間圧延方法。5. The oil applied to the top portion and the bottom portion of the coil is an oil mainly composed of fatty acids, and the amount of oil applied is
The cold rolling method according to any one of claims 1 to 4, wherein the cold rolling is 0.5 to 3.0 g / m 2 .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000178756A JP3446723B2 (en) | 2000-06-14 | 2000-06-14 | Cold rolling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000178756A JP3446723B2 (en) | 2000-06-14 | 2000-06-14 | Cold rolling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2001353523A JP2001353523A (en) | 2001-12-25 |
| JP3446723B2 true JP3446723B2 (en) | 2003-09-16 |
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ID=18680139
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|---|---|---|---|
| JP2000178756A Expired - Fee Related JP3446723B2 (en) | 2000-06-14 | 2000-06-14 | Cold rolling method |
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| Country | Link |
|---|---|
| JP (1) | JP3446723B2 (en) |
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|---|---|
| JP2001353523A (en) | 2001-12-25 |
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