JPH03128114A - Wiping method for rolling oil - Google Patents
Wiping method for rolling oilInfo
- Publication number
- JPH03128114A JPH03128114A JP26398989A JP26398989A JPH03128114A JP H03128114 A JPH03128114 A JP H03128114A JP 26398989 A JP26398989 A JP 26398989A JP 26398989 A JP26398989 A JP 26398989A JP H03128114 A JPH03128114 A JP H03128114A
- Authority
- JP
- Japan
- Prior art keywords
- rolling
- speed
- oil
- roll
- pressing force
- 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
- 239000010731 rolling oil Substances 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims description 10
- 238000005096 rolling process Methods 0.000 claims abstract description 40
- 238000003825 pressing Methods 0.000 claims abstract description 23
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 12
- 239000010935 stainless steel Substances 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 abstract description 16
- 229910000831 Steel Inorganic materials 0.000 abstract description 9
- 239000010959 steel Substances 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 241000951471 Citrus junos Species 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0269—Cleaning
- B21B45/0275—Cleaning devices
- B21B45/0278—Cleaning devices removing liquids
- B21B45/0284—Cleaning devices removing liquids removing lubricants
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、ステンレス鋼４ｉＦを冷間圧延する際の圧延
油ワイピング方法に係り、特に高速圧延であっても圧延
油を確実にワイピングすることのできる圧延油ワイピン
グ方法に関する。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a method for wiping rolling oil when cold rolling stainless steel 4iF, and in particular, to ensure wiping of rolling oil even during high-speed rolling. This invention relates to a method for wiping rolling oil.
〈従来の技術〉
ステンレス鋼帯を冷間圧延する際、圧延油が潤滑剤とし
て使用される。この圧延油は、巻取りリール前でワイピ
ングする必要があるが、ワイピング性が悪い場合には、
コイルが横すべり（テレスコ状）したり、板厚計の検出
がうまくできず（Ｘ線等の非接触タイプ）オフゲージが
発生したりするので、適正なワイピング方法が必要であ
る。<Prior Art> When stainless steel strip is cold rolled, rolling oil is used as a lubricant. This rolling oil needs to be wiped before the take-up reel, but if the wiping properties are poor,
An appropriate wiping method is necessary because the coil may slip sideways (telescopic) or the plate thickness gage may not detect properly (non-contact type such as X-ray) and off-gauge may occur.
第５図に基づいて、従来技術を説明する。ｌは１２段圧
延機、２０段圧延機などの多段式リバース圧延機、２Ｌ
、２−はテンシランリール、３Ｌ、３．はワイパであり
、４Ｌ−４１Ｉは圧延油供給装置、５Ｌ、５、はデフレ
クタ−ロールである。なお、Ｓはステンレス鋼帯である
。The prior art will be explained based on FIG. 1 is a multi-stage reverse rolling mill such as a 12-high rolling mill or a 20-high rolling mill, 2L
, 2- is Tensilan reel, 3L, 3. is a wiper, 4L-41I is a rolling oil supply device, and 5L and 5 are deflector rolls. Note that S is a stainless steel strip.
右方向に圧延する場合、まず、左側テンシランリール２
Ｌにより巻戻された鋼帯Ｓに圧延油供給装置４Ｌから圧
延油が噴出されて、ワイパ３．により過剰圧延油が除去
される０次に、圧延機ｌにより冷間圧延されて右側テン
シランリール２１１に巻取られる。このようにして１パ
ス分の圧延が完了すると、左方向に圧延がなされ、この
時には圧延ガ旧Ｊ（給装置４□とワイパ３．が使用され
ることになる。このようにして複数バス圧延して、１１
ＨｔＦＳは所定厚さとなる。When rolling in the right direction, first, the left tensilan reel 2
Rolling oil is spouted from the rolling oil supply device 4L onto the steel strip S rewound by the wiper 3.L. Excess rolling oil is removed therefrom.Then, the sheet is cold rolled by a rolling mill 1 and wound onto a right tensile reel 211. When one pass of rolling is completed in this way, rolling is performed in the left direction, and at this time, the rolling roller (feeder 4□ and wiper 3) are used. Then, 11
HtFS has a predetermined thickness.
ところで、上記ワイパ４１１．４Ｌにはいくつかの種類
があり、代表的なものを第６〜８図に示す。By the way, there are several types of wipers 411.4L, and typical ones are shown in FIGS. 6 to 8.
第６図に示したのはゴムワイパであり、複数列のゴム材
６を鋼４ｉＦ Ｓに押付けることにより過剰圧延油を除
去するものである。このタイプは油切りは比較的良好で
あるが、異物（鉄粉等）がゴム材に突きささり、鋼帯表
面にスリ疵を発生させるという欠点を有する。The rubber wiper shown in FIG. 6 removes excess rolling oil by pressing multiple rows of rubber members 6 against the steel 4iFS. Although this type has relatively good oil removal, it has the disadvantage that foreign matter (such as iron powder) gets stuck in the rubber material, causing scratches on the surface of the steel strip.
第７図に示したのは、大径ロールワイパ７であり、通常
直径が４００ｇ＋Ｉａ以上の不織布等から戒る２本のロ
ールを個帯Ｓに押付けて浦切りを行うものである。この
時ロールは回転させるので、スリ疵の発生は少ないが、
ロール径が大きいこと、ロール表面が軟らかいことから
、柚切りはあまり良好ではない。What is shown in FIG. 7 is a large-diameter roll wiper 7, which performs wiping by pressing two rolls made of nonwoven fabric or the like, usually having a diameter of 400 g+Ia or more, against the individual strip S. Since the roll is rotated at this time, scratches are less likely to occur.
Because the roll diameter is large and the roll surface is soft, yuzu cutting is not very good.
第８図は小径３本ロールワイパ８を示したものである。FIG. 8 shows a small-diameter three-roll wiper 8.
これは３本の小径ロールを千鳥状に配置して鋼帯Ｓに押
付けるようにしてワイピングするものである。ロールは
金属製でかつ小径であることから、油切り性は良好であ
り、またロールを回転させるためと金属製であることか
ら、鋼ＩＦ Ｓにスリ疵は入りにくい、なお、ロール径
は通常２００餉以下である。This involves wiping by arranging three small diameter rolls in a staggered manner and pressing them against the steel strip S. Since the roll is made of metal and has a small diameter, it has good oil removal properties, and since it is made of metal to rotate the roll, it is difficult for steel IF S to get scratches. It is less than 200 pieces.
〈発明が解決しようとする課題〉
ステンレス鋼ＩＰは、１５′通鋼と比べ冷間圧延速度が
遅＜２００〜４００ｍ／ｍｌｎ程度である（第３版鉄鋼
便覧■（１）圧延基礎、Ｐ７０２参照）。そのため、生
産性向上のために高速圧延が志向されるようになってき
ているが、解決すべき課題の１つに圧延油のワイピング
がある。即ち、高速になればなるほど浦切り性が悪くな
り、またコイル横ずれの発生頻度も高くなる。特に最も
優れていると考えられる小径３木ロールワイパにおいて
も柚切りの点からそのまま高速圧延には適用できない。<Problem to be solved by the invention> Stainless steel IP has a lower cold rolling speed than 15' steel, about 200 to 400 m/mln (see 3rd Edition Iron and Steel Handbook ■ (1) Rolling Basics, page 702) ). For this reason, high-speed rolling is becoming more popular in order to improve productivity, but one of the issues that must be solved is wiping of rolling oil. That is, the higher the speed, the worse the cutting performance becomes, and the frequency of occurrence of lateral displacement of the coil increases. In particular, even the small-diameter 3-wood roll wiper, which is considered to be the most excellent, cannot be directly applied to high-speed rolling due to its ability to cut yuzu.
本発明は、上記従来技術の問題点に鑑みてなされたもの
で、高速圧延であっても圧延油を確実にワイピングでき
る圧延油ワイピング方法を提（Ｊｊすることを目的とす
るものである。The present invention has been made in view of the problems of the prior art described above, and it is an object of the present invention to provide a rolling oil wiping method that can reliably wipe rolling oil even during high-speed rolling.
く課題を解決するための手段〉
本発明は、ステンレス鋼帯に圧延油を供給し、ついで小
径３木ロールワイパにより過剰圧延油を除去するにあた
り、圧延速度が所定速度より高い場合に、前記ワイパの
ステンレス鋼帯への押付力を圧延速度に応じて高めるこ
とを特徴とする圧延油ワイピング方法である。Means for Solving the Problems> The present invention provides a method for supplying rolling oil to a stainless steel strip and then removing excess rolling oil using a small-diameter three-roll wiper, when the rolling speed is higher than a predetermined speed. This rolling oil wiping method is characterized in that the pressing force against the stainless steel strip is increased in accordance with the rolling speed.
〈作 用〉
第３図は小径３木ロールワイパにおいて、ワイピング後
の銅帯表面の油膜厚さＬが、圧延速度Ｖもしくはロール
押付力Ｐによりどのように変化するかを定性的に示した
ものである。従来は第３図（ａ）に示す状態で行われて
おり、圧延速度Ｖが上がれば油膜厚さＬも大きくなる。<Function> Figure 3 qualitatively shows how the oil film thickness L on the surface of the copper strip after wiping changes depending on the rolling speed V or roll pressing force P in a small-diameter three-wood roll wiper. be. Conventionally, rolling has been carried out in the state shown in FIG. 3(a), and as the rolling speed V increases, the oil film thickness L also increases.
一方、油膜厚さＬを薄くするには、押付力Ｐを高くする
ことが考えられるが、これを示したのが第１図（ｂ）で
ある。このように、速度一定特にロール押付力Ｐを大き
くすると油ＩｌΔ厚さｔは薄くなる。On the other hand, in order to reduce the oil film thickness L, it is conceivable to increase the pressing force P, which is shown in FIG. 1(b). In this way, when the speed is constant, especially when the roll pressing force P is increased, the oil IlΔ thickness t becomes thinner.
従って、高速圧延時にワイピングを良好にするには、ロ
ール押付力Ｐを大きくすることが考えられるが、単にロ
ール押付力Ｐをアップするだけでは次の問題がある。即
ち、圧延速度Ｖが変化して低速になった場合、ロール押
付力Ｐが高すぎて油膜厚さＬが薄くなり、ヒートストリ
ーク等が発生しやすくなり、また、ワイパロールの摩耗
の点でも好ましくない。Therefore, in order to improve wiping during high-speed rolling, it is conceivable to increase the roll pressing force P, but simply increasing the roll pressing force P causes the following problems. That is, when the rolling speed V changes and becomes low, the roll pressing force P is too high and the oil film thickness L becomes thinner, which tends to cause heat streaks and the like, which is also unfavorable in terms of wiper roll wear. .
そこで、本発明では次の方法を採った。即ち、第４図（
ａ）に示すように、油膜厚さしに上限Ｌ０を設定する。Therefore, in the present invention, the following method was adopted. That is, Fig. 4 (
As shown in a), an upper limit L0 is set for the oil film thickness.
具体的には、第４図（ｂ）に示すように、圧延速度がＶ
、以下ではロール押付力ＰをＰｏに保持し、９０以上で
は速度に応じて押付力Ｐを高める。このようにすること
により、高速圧延においても良好な圧延？＋ｂのワイピ
ングが可能となる。Specifically, as shown in FIG. 4(b), the rolling speed is V
, below, the roll pressing force P is maintained at Po, and when it is 90 or more, the pressing force P is increased according to the speed. By doing this, it is possible to achieve good rolling even at high speed rolling. +b wiping is possible.
〈実施例〉
第５図に示した圧延ラインに、本発明を適用した例につ
き述べる。第１図に小径３本ロールワイパの制御図を示
す、上ロール押付力）１１．下ロールユニット１１′に
は各々押付用シリンダ１２．１２′が連結され、各シリ
ンダ１２．１２′には高圧力１１供給配管１３．１３’
を戻り配管１４．１４’が接続されている。そして、各
配管には圧力調整弁！５．１Ｇが設番ノられ、これらの
圧力調整弁１５．１６は、コントローラ１７により制御
される。なお、コントローラ１７には、鋼’＋ｊｆ Ｓ
の速度Ｖを図示しない速度検出器から人力させる。コン
トローラ１７には、例えば第２図に示した関係式を持た
せる。即ち、
■≦４００ｍ／ｍの時、
Ｐ＝ａ −・・−一−−（１）■≧
４００ｍ／細の時、
Ｐ ＝ ｂ ｖ ＋−ｃ −−−・−・
（２）ここで、 Ｖ：圧延速度（ｍ ／ ｌＩｎ ）
Ｐ：押付力 （ｋｇ）
ａ−２００（ｋｇ）
−１
Ｃヨー２００
次に、第２図について説明する。<Example> An example in which the present invention is applied to the rolling line shown in FIG. 5 will be described. Fig. 1 shows a control diagram of a small-diameter three-roll wiper (upper roll pressing force)11. A pressing cylinder 12.12' is connected to each lower roll unit 11', and a high pressure 11 supply pipe 13.13' is connected to each cylinder 12.12'.
The return pipe 14.14' is connected. And each pipe has a pressure regulating valve! These pressure regulating valves 15 and 16 are controlled by a controller 17. In addition, the controller 17 has steel '+jf S
The speed V is manually determined from a speed detector (not shown). The controller 17 is provided with the relational expression shown in FIG. 2, for example. That is, when ■≦400m/m, P=a -...-1--(1) ■≧
When 400m/thin, P = b v +-c ---・-・
(2) Here, V: rolling speed (m/lIn)
P: Pressing force (kg) a-200 (kg) -1 C yaw 200 Next, FIG. 2 will be explained.
油膜厚さの厚みは、０．０２５−程度が上限であり、こ
れ以上厚くなるとロールスリップが発生する。The upper limit of the oil film thickness is about 0.025 mm, and if it becomes thicker than this, roll slip will occur.
テストの結果、速度４００ ｍ ／ ｍｌｎ以下では、
油膜厚さが０．０２５−に達しないため、圧カ一定にし
ており、油膜厚さが０．０２５ｐｓ以上になる速度４０
０ｍ／廁以上で圧力を上げるようにした。この時のテス
ト条件は、ロール径４７Ｍ、ストリップ板Ｗ、１．０ｍ
ｍ、板幅１００ＯＮ＠、板張力３０ｋｇ／−であった。As a result of the test, at speeds below 400 m/mln,
Since the oil film thickness does not reach 0.025 ps, the pressure is kept constant, and the speed at which the oil film thickness reaches 0.025 ps or more is 40
The pressure was increased above 0 m/mu. The test conditions at this time were: roll diameter 47M, strip plate W, 1.0m.
m, plate width 100ON@, and plate tension 30 kg/-.
圧延油はエステル系ニートオイルを使用し、粘度は１２
ｃｓｔ（ａｔ４０°Ｃ）であった。The rolling oil used is ester-based neat oil with a viscosity of 12
cst (at 40°C).
本テストでは、ロール押付力Ｐ、圧延速度Ｖの関係は直
線的な関係であったが、ワイパ条件、圧延油条件等によ
り、ＩＩＩＪ線になることも考えられる。In this test, the relationship between the roll pressing force P and the rolling speed V was a linear relationship, but depending on the wiper conditions, rolling oil conditions, etc., it is possible that the relationship becomes a line IIIJ.
第２図に示した関係式を持たせて、本発明の方法を実施
したところ、高速圧延においても圧延油を６′ｌ！実に
ワイピングすることができ、スリップやオイルビットの
発生がなかった。When the method of the present invention was carried out with the relational expression shown in FIG. 2, even in high-speed rolling, only 6'l of rolling oil was used! It was really easy to wipe, and there were no slips or oil bits.
〈発明の効果〉
以上説明したように、本発明によれば、ステンレス鋼４
ｉＦの圧延において、コイルの横ずれ、オフゲージ等を
発生させずに安定して高速圧延がで点る。<Effects of the Invention> As explained above, according to the present invention, stainless steel 4
In iF rolling, stable high-speed rolling can be achieved without causing lateral displacement of the coil, off-gauge, etc.
第１図は本発明の一実施例を示す制御系統図である。第
２図は本発明の一実施例において、コントローラに持た
せる圧延速度Ｖとロール押付力Ｐの関係を示す図である
。第３．４図は本発明の詳細な説明するための図である
。第５図は従来のステンレス鋼帯の圧延設備の説明図、
第６〜８図は従来のワイパの説明図である。
１・・・多段式リバース圧延機、
２Ｌ、２１・・・テンションリール、
３Ｌ、３．・・・ワイパ、
４Ｌ、４つ・・・圧延油供給装置、
５Ｌ２５つ・・・デフレクタロール、
６・・・ゴム材、
７・・・大径ロールワイパ、
８・・・小径３本ロールワイパ、
１１・・・上ロールユニット、
１１’・・・下ロールユニット、
１２．１２’・・・押付用シリンダ、
１３．１３’・・・高圧油供給配管、
１４．１４′・・・戻り配管、
Ｉ５．１６・・・圧力調整弁、
１７・・・コントローラ、
Ｓ・・・ステンレス鋼帯。FIG. 1 is a control system diagram showing one embodiment of the present invention. FIG. 2 is a diagram showing the relationship between the rolling speed V set by the controller and the roll pressing force P in an embodiment of the present invention. FIG. 3.4 is a diagram for explaining the present invention in detail. Figure 5 is an explanatory diagram of conventional stainless steel strip rolling equipment;
6 to 8 are explanatory diagrams of conventional wipers. 1...Multi-stage reverse rolling mill, 2L, 21...Tension reel, 3L, 3. ...Wiper, 4L, 4 pieces...Rolling oil supply device, 5L, 25 pieces...Deflector roll, 6...Rubber material, 7...Large diameter roll wiper, 8...Small diameter 3 roll wiper, 11 ... Upper roll unit, 11'... Lower roll unit, 12.12'... Pressing cylinder, 13.13'... High pressure oil supply piping, 14.14'... Return piping, I5 .16...Pressure regulating valve, 17...Controller, S...Stainless steel strip.
Claims (1)
ルワイパにより過剰圧延油を除去するにあたり、圧延速
度が所定速度より高い場合に、前記ワイパのステンレス
鋼帯への押付力を圧延速度に応じて高めることを特徴と
する圧延油ワイピング方法。When supplying rolling oil to the stainless steel strip and then removing excess rolling oil using a small-diameter three-roll wiper, if the rolling speed is higher than a predetermined speed, the pressing force of the wiper against the stainless steel strip is adjusted according to the rolling speed. A rolling oil wiping method characterized by increasing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1263989A JPH0671620B2 (en) | 1989-10-12 | 1989-10-12 | Rolling oil wiping method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1263989A JPH0671620B2 (en) | 1989-10-12 | 1989-10-12 | Rolling oil wiping method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03128114A true JPH03128114A (en) | 1991-05-31 |
| JPH0671620B2 JPH0671620B2 (en) | 1994-09-14 |
Family
ID=17396998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1263989A Expired - Lifetime JPH0671620B2 (en) | 1989-10-12 | 1989-10-12 | Rolling oil wiping method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671620B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008000788A (en) * | 2006-06-22 | 2008-01-10 | Toshiba Mitsubishi-Electric Industrial System Corp | Automatic plate tip passing device for continuous cold rolling mill |
| CN112845631A (en) * | 2021-01-04 | 2021-05-28 | 武汉钢铁有限公司 | Three-roller oil scraping device of Sendzimir twenty-high roll mill |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219365U (en) * | 1985-07-19 | 1987-02-05 |
-
1989
- 1989-10-12 JP JP1263989A patent/JPH0671620B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219365U (en) * | 1985-07-19 | 1987-02-05 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008000788A (en) * | 2006-06-22 | 2008-01-10 | Toshiba Mitsubishi-Electric Industrial System Corp | Automatic plate tip passing device for continuous cold rolling mill |
| CN112845631A (en) * | 2021-01-04 | 2021-05-28 | 武汉钢铁有限公司 | Three-roller oil scraping device of Sendzimir twenty-high roll mill |
| CN112845631B (en) * | 2021-01-04 | 2023-04-07 | 武汉钢铁有限公司 | Three-roller oil scraping device of Sendzimir twenty-high roll mill |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0671620B2 (en) | 1994-09-14 |
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