JPS58167018A - Rolling lubricating device - Google Patents

Abstract

PURPOSE:To reduce wear of a working roll and to prevent occurrence of roll slip in hot rolling of a strip by detecting surface condition of the working roll by plural detectors, and supplying rolling lubricant to the surface of the working roll according to the result of detection. CONSTITUTION:Plural detectors 11 are faced to the surface of a working roll 1 for hot rolling of a strip in the direction of width, and quantity of rolling oil adhering on the surface of the working roll 1 is detected, and the signal is inputted to a controlling device 21. The controlling device 21 compares and calculates given input value and initial profile of the working roll 1 set beforehand, and outputs deviation value for each section of the surface of the working roll. This value is inputted to a control valve 19 and the quantity of injected oil from each nozzle 17 is controlled, and the quantity of adhering rolling oil over whole circumference of the working roll is made target value. Thus, wear of the working roll due to deficiency of rolling oil and slipping between the roll and strip due to excess of rolling oil can be prevented.

Description

【発明の詳細な説明】 本発明は、ストリップの熱間圧延に際し用いられる、圧
延潤滑油の−−ル摩粍ｔｏｓｓＫ応じてロールへの供給
を変化させ曳好なる条件下で圧延を可能ならしめる圧延
潤滑油装置に関すゐ。DETAILED DESCRIPTION OF THE INVENTION The present invention enables rolling under favorable rolling conditions by changing the supply of rolling lubricating oil to the rolls depending on the rolling tossK used during hot rolling of strip. Regarding rolling lubricating oil equipment.

今日薄銅板の生産は年間約４〜４５千万トンと全鉄鋼製
品の生産量の約ｓ〇−を占め、七０４に崖はホットスト
リップ擢ルに依りて圧延１れているこＯ事実を見ても薄
鋼板Ｏ熱間圧延プ曽七スの省エネルギー化、高生産性化
等が、いかに重要であるかを窺い知ることが出来る・ 熱間圧延設備の代表設備であるホットストＩＪツブでは
、生産される鋼種に依っても多少異なるが、製品の機械
的性質、結晶組織などを考慮して、Ａｒｓ変態点（ｆ　
４　ｆ＋α変ＩＩ）以上の温度である９００を前後で圧
延を終了するのが一般的である。Today, the production of thin copper sheets is about 40 to 450 million tons per year, accounting for about 100,000 tons of the total production of steel products. Just by looking at it, you can see how important it is to save energy and increase productivity in thin steel O hot rolling mills. Although it varies somewhat depending on the type of steel being produced, the Ars transformation point (f
It is common to finish rolling at a temperature of around 900, which is 4f+α change II) or higher.

その九めに高温、更には圧延材より発生する酸化スケー
ル等によるロール摩耗の減少と肌荒れ防止などを目的と
して多量の水を、一般に云われる１一層表面温度約１０
０を以下に押えるロール冷却用として使用して来た。し
かし、水の与では１−ル摩耗の減少、肌荒れ防止は充分
でなく回的遁成の九めに、各社共種々試みて来九、その
結果、次に述べる手法が効果的であることが実証され、
最近では大多数の製鉄所の実操業Ｋｍいて取り入れられ
ているが、未だ不充分であって、さらに新手法の開発を
必要としている。Ninth, in order to reduce roll wear and prevent skin roughness due to high temperatures and oxidized scales generated from rolled materials, a large amount of water is added to the surface at a temperature of about 10
It has been used for cooling rolls that keep the temperature below 0. However, applying water is not sufficient to reduce wear and prevent rough skin, and various companies have tried various methods to achieve this goal, and as a result, the following method has been found to be effective. proven,
Although this method has recently been adopted in most steel mills during their actual operations, it is still insufficient and new methods need to be developed.

今日、ａ−ルの摩耗、偏摩耗妨止策としては（１）　　
冷間圧延で使用されると開−、油を圧延潤滑として使用
するように＊′）九。Today, measures to prevent a-rule wear and uneven wear are (1)
*')9 When used in cold rolling, oil is used as rolling lubrication.

（２）圧延時の偏摩耗が原因で生ずる闘一層表面のピッ
クアップの防止、更には、偏摩耗の分散をはかシ摩耗の
均一化を目的とし九作業セールのパス直角方向への移動
方式の採用。(2) In order to prevent the pick-up of the hard layer surface caused by uneven wear during rolling, and furthermore to disperse the uneven wear and make the wear uniform, a method of moving the nine work sails in the direction perpendicular to the path has been adopted. Adopted.

上記手法の採用に至つ九背景は、 （１）ロール摩耗中ロール肌荒れが着しくなると、スト
リップの形状が悪くなると同時に、表面性状も悪くなり
、ロール組替を頻繁に行なわなければならない０組替に
は多くの時間な畳し、生産性を大巾に低下させる。The reasons behind the adoption of the above method are as follows: (1) When the roll surface becomes rough during roll wear, the shape of the strip deteriorates and the surface quality also deteriorates, making it necessary to frequently change the rolls. It takes a lot of time to change the folds, which greatly reduces productivity.

（２）　　ＩＩ−ルの偏摩耗が著しいと、それだけ研削
量が増え、ロール原単位の増加をもえらし大暑な損失と
なる。(2) If the uneven wear of the II-roll is significant, the amount of grinding will increase accordingly, leading to an increase in the roll unit consumption and resulting in heavy losses.

（３）オイル・シ冒ツタを契機としてｍｓ種機器省エネ
ルギー化が叫ばれ丸。(3) In the wake of the oil and ivy outbreak, there has been a call for energy conservation in MS-type equipment.

以上の背景で採用するに至り九訳であるが、採用するこ
とによる効果として、今日迄に確認された事項は、 （１）圧延動力の減少・・・・・・約８１１１ｉＪｌも
の低減報告がある。（第　図参照） （２）　　−−ル摩耗、表面肌荒れの減少（３）簡−ル
組替回数の減少による生産性の向上（４）−−ル表面肌
荒れ減少による製品表面品質の向上 （５）圧延荷重の減少・・・・・・約１０−２０−の低
減報告がある又低減は圧下率の大きい程その効果が著し
いとの報告もある。The adoption was made against the above background, but the effects of adoption that have been confirmed to date are as follows: (1) Reduction in rolling power: a reduction of approximately 8111 iJl has been reported. . (Refer to figure) (2) --Reduction of wheel wear and surface roughness (3) Improvement of productivity by reducing the number of times of simple recombination (4) --Improvement of product surface quality by reduction of rule surface roughness (5) ) Decrease in rolling load: There are reports of a reduction of about 10-20, and there are also reports that the effect of the reduction is more significant as the rolling reduction ratio increases.

等々の報告がなされている。There have been reports such as.

次に１従来技術に就いて第１ＷＪから第３図を用いて説
明する。Next, one conventional technique will be explained using the first WJ to FIG. 3.

第１図に示す方法は圧延波スプレーヘッダー３゜５ｌＪ
ｔｃ取付けられたノズル４．４′から、水、又は空気、
蒸気によってアトマイズされた圧延波を、補強ロール２
．２’　Ｋ噴射し、噴射され九圧延油は補強■−ル２．
２′を介して作業音−ル１．１′に転写され、然る後、
作業ロール１，１′と被圧延材であるストリップ５０間
で潤滑作用を果す。The method shown in Figure 1 is a rolling wave spray header with a 3°5lJ
Water or air from the tc-mounted nozzle 4.4',
The rolling waves atomized by the steam are transferred to the reinforcing roll 2.
．． 2' K is injected, and the injected rolling oil is reinforced.
2' to the working sound bar 1.1', and then
A lubrication effect is achieved between the work rolls 1, 1' and the strip 50 which is the material to be rolled.

しかし、作業ａ−ル１ｊ１′への圧延油の耐着が必らず
しも確実ではなく、ロール肌荒れの弛生、および、それ
に起因する圧＃１Ｉｌｉ品表面性状の劣化、會−ル摩耗
の増進、圧ｍ＊重、圧延動力の増大といった問題がある
。However, the adhesion resistance of the rolling oil to the working roll 1j1' is not always reliable, and the roughness of the roll surface is loosened, the resulting deterioration of the surface quality of the rolled #1Ili product, and the roll abrasion. There are problems such as increase in rolling speed, rolling m*weight, and rolling power.

第２図に示す方法は圧延油の塗布状況の安定化を計る丸
め、第１図に示すように圧延油を直接ノズルから噴射し
ないで、必要時に補強１−ル２゜２′に接触する塗布ロ
ール６を具備し、これＫ（キシングされ九圧延油又は圧
延油単味を吹きつけて、間接的に圧延ロールに圧延波を
塗布させるものであるが、圧延油に搬送媒体を用いる限
り、圧延ロール、冷却水の条件によって塗布状態が安定
し−いことは紡速の第１図の場合と同じである。The method shown in Fig. 2 is rounding to stabilize the application of rolling oil, and as shown in Fig. 1, rolling oil is not injected directly from the nozzle, but is applied in contact with the reinforcement 1-2゜2' when necessary. It is equipped with a roll 6, which is kissed and sprayed with rolling oil or rolling oil alone to indirectly apply rolling waves to the rolling roll.As long as a carrier medium is used for the rolling oil, the rolling roll The fact that the coating state is not stable depending on the cooling water conditions is the same as in the case of the spinning speed shown in Fig. 1.

第３ＩｉｌＪＫ示す圧延油塗布方式が今日一般的に採用
されている０作業部−ル１．１′への圧延油の塗布を補
強ロール２．２′を介して転写するのではなく、直接作
業ロールＬ１’にアトマイズされた圧延油をスプレーヘ
ッダー９．９′に取付けられたノズル１０．１０’から
噴射して塗布する。The rolling oil application method shown in No. 3 IilJK is applied directly to the work roll 1.1' instead of being transferred via the reinforcing roll 2.2', which is commonly adopted today. Atomized rolling oil is sprayed onto L1' from a nozzle 10.10' attached to a spray header 9.9'.

一方、圧延油の作業ロール１．１′への耐着をより確実
にする九めｉｌｆ：ロール冷却水の除去を目的とし九ワ
イパー８．８′を併設して込る。On the other hand, a wiper 8.8' is also installed for the purpose of removing rolling cooling water to ensure that rolling oil does not adhere to the work roll 1.1'.

一方、圧延油のロール耐着油膜厚みは第ｇ！ＩＫ示すよ
うに０．６μｍ以上必要ないことを塑性加工春季講演会
前胴（１９７６年５月）での小林氏らのデーターは示し
ている。又、曽−ルへの圧延油Ｏ耐着量とロール摩耗の
減少の関係を［９図に示す１図よりロールへの圧延油附
着量が約４　ｇ／ｌｎ”以上となるとロールスリップの
愈険が極めて高くなる。父、少ないとロール摩耗が加速
的に促進される・即ち、最適附着量（２〜８ｇ／ｆｉｌ
’）を如何に持続させ、ロール摩耗を最少限に押え、製
品表面品質を良好に保つと同時に１０一ル原単位を低価
に押えるかが必要である。On the other hand, the roll oil film thickness of rolling oil is g! As shown by IK, the data of Mr. Kobayashi et al. presented at the Spring Lecture on Plastic Working (May 1976) shows that it is not necessary to have a thickness of 0.6 μm or more. In addition, the relationship between the amount of rolling oil O adhering to the roll and the reduction in roll wear was determined [from Figure 1 shown in Figure 9, when the amount of rolling oil adhering to the roll is about 4 g/ln'' or more, the roll slip However, if the amount is too low, roll wear will be accelerated.
It is necessary to find a way to maintain the quality of the product, keep roll wear to a minimum, maintain good product surface quality, and at the same time keep the unit price low.

一方、クール表面へのカーボンの耐着によっても、ロー
ル摩耗は大巾に抑制出来るとの結果も得られている。On the other hand, results have also been obtained that roll wear can be largely suppressed by adhesion of carbon to the cooled surface.

以下、本発明を実施例にもとづ匹て第１０図お　。Hereinafter, the present invention will be explained based on the examples shown in FIG.

よび第１１図で具体的に説明する。This will be explained in detail with reference to FIG.

作業音−ル１，１′と接触してワイパー８は圧延機入側
ハウジング内部に設けられる。ワイパー８は図示しない
機構に依秒％１−ル組替時に組替作業に支障をＩｉ九さ
ぬ位置ｔで逃げれる機になつている、ワイパー８の下部
（下作業ロール１′では上部）には両側に基準ローラー
１２を＾儂し九検出器本体１３がワイパー８に設けられ
九案内機構に従って作業ａ−ル１と直角方向に可動な状
態で取付けられる。検出器本体１３にＡｌｌｌｌ準基準
ローラー１２延中の振動に依って離別することの無いよ
う一定の力で作業ロールＩＫ押付けられる。この押付力
は検出器本体１３とワイパー８０間に介在し九押付装置
１４に依りて、発生される。一方、検出器本体１３には
作業−−ルｌの表面状況を検出する検出器１１が複数個
取付けられる。又、検出器１１は基準ローラー１２を介
して作業ロールｌの表面と一定の関係になるように取付
けられる。検出器１１に依って作業−−ルの表面状況の
検出された値はリード［１５を経て制御装置２１の入力
値となる。制御装置２１は与えられた入力値と、先にセ
ットし九作＊−−ル１のイニシャルプロフィルとを比較
演算を行なり−ｈ％各セクション毎での備差値を出力す
る。制御装置２１よりの出力値を制御弁１９０入力値と
して与え、各ノズル１７からの噴射圧延油の量を制御し
、常に、作業クールｌの表面状況との関係に於いて、圧
延油が表面に塗布出来るようにしたものである。A wiper 8 is provided inside the housing on the entry side of the rolling mill in contact with the working sound wheels 1, 1'. The wiper 8 relies on a mechanism (not shown) to allow the wiper 8 to escape from the lower part (the upper part in the case of the lower work roll 1') so as not to interfere with the rearranging work when the rolls are rearranged. A detector main body 13 is provided on the wiper 8 with reference rollers 12 on both sides thereof, and is movable in a direction perpendicular to the working wheel 1 according to a guide mechanism. The work roll IK is pressed against the detector main body 13 with a constant force so that it will not be separated due to the vibration of the all semi-standard rollers 12. This pressing force is generated by the pressing device 14 interposed between the detector main body 13 and the wiper 80. On the other hand, a plurality of detectors 11 are attached to the detector body 13 for detecting the surface condition of the workpiece l. Further, the detector 11 is mounted via a reference roller 12 so as to have a constant relationship with the surface of the work roll l. The value detected by the detector 11 of the surface condition of the workpiece becomes an input value to the control device 21 via the lead 15. The control device 21 performs a comparison operation between the given input value and the previously set initial profile of the nine-h% *--rule 1, and outputs a -h% differential value for each section. The output value from the control device 21 is given as the input value to the control valve 190, and the amount of rolling oil injected from each nozzle 17 is controlled, so that the rolling oil always reaches the surface in relation to the surface condition of the work coolant l. It is made to be able to be painted.

更に、制御装置２１の全出力をロール形状表示装置２２
の入力として与え、それをもとに−−ル形状表示装置２
２の表示盤に作業ロールｌのプロフィルを表示する。運
転員はこの表示盤を見て、必ｌ！に依り作業ロール１．
１′をストリップ５と直角方向に移動させ作業ロール１
．１′の表面に発生する異常ピックアップを未然に防止
する仁とが出来る。更に、作業ａ−ル１．１′の移動装
置（図示にはない）との間で制御回路を組むことに依り
、自動的に行なうことも可能である。Furthermore, the full output of the control device 21 is transmitted to the roll shape display device 22.
Based on it, the shape display device 2
The profile of work role l is displayed on the display panel 2. Operators must look at this display board! Depending on the work roll 1.
1' in a direction perpendicular to the strip 5 and remove the work roll 1.
．． It is possible to prevent abnormal pick-up occurring on the surface of 1'. Furthermore, it is also possible to perform this automatically by constructing a control circuit with the moving device (not shown) of the working wheel 1.1'.

本発明に依る装置を採用することＫより、作業ロール１
，１′の表面摩耗が均一化され、常Ｋ、製品表面品質が
良好な状態で圧延出来ると同時に。By employing the device according to the invention, the work roll 1
, 1' surface abrasion is made uniform, and the product surface quality can be rolled in a good condition at the same time.

ロールの原単位も大巾に低減することが出来る。The unit consumption of rolls can also be significantly reduced.

本発明による装置の坤への応用例として讃−ルのサーマ
ルクラウンの測ｙ＆にも活用出来、サーマルクラウン量
とロールクーラント量の制御系で一定の函数を持つ九制
御回路を組むことによ妙、容易にサーマルクラウン量を
制御することが出来る・なお、図中８Ｆｉワイパー、１
４は押付装置、１５はリード線、１６はスプレーへラダ
ー、１８はパイプ、２０は曹−ル形状表示装置である。As an example of the application of the device according to the present invention, it can also be used to measure the thermal crown of a saloon. , the amount of thermal crown can be easily controlled.
4 is a pressing device, 15 is a lead wire, 16 is a ladder to the spray, 18 is a pipe, and 20 is a soda bottle shape display device.

【図面の簡単な説明】 第１図は圧延油の補強１−ルへの塗布をノズルに依って
行なつ九場合の側面図、第２！ｉｌｌは圧延油の補強ロ
ールへの塗布をローラーに依って行なり九場合の側面図
、第３図は圧延油Ｏ作ｍ−−ルヘの塗布をノズルに依っ
て行なう九場合の側面図、第４図は圧延潤滑油＊ｔと平
均圧延力の低減率特性図、ｓｇｓ図は圧延潤滑油使用（
１）、不使用時φ）Ｋ於ける圧延動力の変化を示す図、
第６図は圧延量とロール摩耗量の関係を示す閣、第７１
！Ｉは圧延後のロール摩耗状況を示す図、落８図は■−
ル耐着油膜厚みと圧延荷重の関係を示す図、第９図はロ
ールへの圧延油耐着量とロール摩耗の減少の関係を示す
図、第１０図は本発明に依る圧延油噴射装置の構造図、
第１１図は本発明に依る圧延油噴射装置の正面図である
。 ８・・・ワイパー、１１・・・検出器、１２・・・基準
ローラー、１３・・・検出器本体、１４・・・押付装置
、ＩＳ・・・リード線、１６・・・スプレーヘッダー、
１７・・・ノズＩＩＦ１日 第　２　の 嵐Ｊｌ？町− ！￥、乙　固 ！ｖ−７目 茅デ　図 −の　　）　奔 第　１０Ｉ２１[Brief explanation of the drawings] Figure 1 is a side view of the case in which rolling oil is applied to the reinforcing 1-hole using a nozzle; Figure 3 is a side view of the case in which the rolling oil is applied to the reinforcing roll by a roller, and Figure 3 is a side view of the case in which the rolling oil is applied to the reinforcing roll by a nozzle. Figure 4 is a characteristic diagram of the reduction rate of rolling lubricating oil *t and average rolling force, and the SGS diagram is a characteristic diagram of rolling lubricating oil *t and the reduction rate of average rolling force.
1) A diagram showing the change in rolling power at φ)K when not in use,
Figure 6 shows the relationship between rolling amount and roll wear amount.
! I is a diagram showing the roll wear condition after rolling, and Figure 8 is ■-
Fig. 9 is a diagram showing the relationship between the amount of rolling oil resistant to adhesion on rolls and reduction in roll wear, and Fig. 10 is a diagram showing the relationship between the rolling oil film thickness and rolling load. Structural drawing,
FIG. 11 is a front view of a rolling oil injection device according to the present invention. 8... Wiper, 11... Detector, 12... Reference roller, 13... Detector body, 14... Pressing device, IS... Lead wire, 16... Spray header,
17... Nozu IIF 1st day 2nd storm Jl? Town! ￥、Otsu solid! v-7 eyes (Fig.-) No. 10I21

Claims (1)

【特許請求の範囲】[Claims] Ｌ　諺−ルの表面プロフィルを針−する検出器を複数個
具備せる検出体に＊Ｊ）、前記曽−ルの表面プｓフィル
を計測し、その計測結果をもとに圧延潤滑油の噴射量を
制御し、前記ロールの摩耗の均一化を可能ならしめるこ
とを特徴とする圧延潤滑油装置。*J) Measures the surface profile of the surface of the surface of the surface of the surface of the object, and injects rolling lubricating oil based on the measurement results. A rolling lubricating oil device characterized by controlling the amount and making it possible to equalize the wear of the rolls.