JPH03151106A - Method for controlling forward slip ratio in cold rolling - Google Patents
Method for controlling forward slip ratio in cold rollingInfo
- Publication number
- JPH03151106A JPH03151106A JP1288661A JP28866189A JPH03151106A JP H03151106 A JPH03151106 A JP H03151106A JP 1288661 A JP1288661 A JP 1288661A JP 28866189 A JP28866189 A JP 28866189A JP H03151106 A JPH03151106 A JP H03151106A
- Authority
- JP
- Japan
- Prior art keywords
- concentration
- forward slip
- slip ratio
- rolling
- friction coefficient
- 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
- 238000000034 method Methods 0.000 title claims description 8
- 238000005097 cold rolling Methods 0.000 title claims description 4
- 238000005096 rolling process Methods 0.000 claims abstract description 27
- 239000010687 lubricating oil Substances 0.000 claims description 23
- 239000000314 lubricant Substances 0.000 abstract description 6
- 230000002950 deficient Effects 0.000 abstract 1
- 230000002542 deteriorative effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 7
- 239000007921 spray Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 2
- 244000145845 chattering Species 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 239000010731 rolling oil Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003746 surface roughness Effects 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
- B21B45/0239—Lubricating
- B21B45/0245—Lubricating devices
- B21B45/0248—Lubricating devices using liquid lubricants, e.g. for sections, for tubes
- B21B45/0251—Lubricating devices using liquid lubricants, e.g. for sections, for tubes for strips, sheets, or plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/44—Control of flatness or profile during rolling of strip, sheets or plates using heating, lubricating or water-spray cooling of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
- B21B1/28—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B27/00—Rolls, roll alloys or roll fabrication; Lubricating, cooling or heating rolls while in use
- B21B27/06—Lubricating, cooling or heating rolls
- B21B27/10—Lubricating, cooling or heating rolls externally
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、冷間圧延における先進率制御方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an advanced rate control method in cold rolling.
〈従来の技術〉
冷間タンデム圧延において、圧延処理量が増加するにし
たがいロールの粗度が低下し、摩擦係数が小さくなるた
め、先進率は小さくなり、さらには負の先進率となる場
合がある。負の先進率の絶対値が著しく大きい場合には
、板厚精度不良、破断、チャタリング等の圧延異常が発
生する。<Conventional technology> In cold tandem rolling, as the rolling throughput increases, the roughness of the rolls decreases and the coefficient of friction decreases, resulting in a decrease in the advance rate and even a negative advance rate. be. If the absolute value of the negative advance rate is extremely large, rolling abnormalities such as poor sheet thickness accuracy, breakage, and chattering occur.
これらの圧延異常を防止し、先進率を制御する方法とし
て、従来、負の先進率に対して、最小の先進率の絶対値
よりもわずかに大きいスライド係数を採用し、摩擦係数
予測式を重回帰により作成し、負の先進率を推定し、摩
擦係数予測式に基づき潤滑油の供給量を求め、先進率を
制御する方法があった（特開昭６２−７２４０９号公報
参照）。Conventionally, as a method to prevent these rolling abnormalities and control the advance rate, a slide coefficient that is slightly larger than the absolute value of the minimum advance rate has been adopted for negative advance rates, and the friction coefficient prediction formula has been overlaid. There is a method in which the advance rate is controlled by creating it by regression, estimating the negative advance rate, and determining the lubricating oil supply amount based on the friction coefficient prediction formula (see Japanese Patent Application Laid-open No. 72409/1983).
〈発明が解決しようとする課題〉
しかしながら、上記従来のスライド係数を用いる方法で
は、圧延油の性状変化、ワークロール粗度の変化、板面
粗度の変化に対し、スリップを発生ずる先進率が変化す
る場合があり、スライド係数をスリップが発生する先進
率の絶対値よりもわずかに大きい値に設定しようとも、
スリップが発生ずる先進率の値が不明確で、最適なスラ
イド係数が得られなかった。<Problems to be Solved by the Invention> However, in the above-mentioned conventional method using the slide coefficient, the rate at which slip occurs is low due to changes in the properties of rolling oil, changes in work roll roughness, and changes in plate surface roughness. Even if you set the slide factor to a value slightly greater than the absolute value of the advanced rate at which slip occurs,
The value of the advance rate at which slipping occurs is unclear, and the optimal sliding coefficient could not be obtained.
スライド係数を大きな値として摩擦係数の同類式を作成
する場合、以下の式（Ｉｎｌａｎｄ ＆ Ｗｏｒｄ （
１先進率式を〃について解く）に実測の先進率ｆ８とス
ライド係数ｐとを代入し、摩擦係数μを求給ることにな
る。When creating a similar equation for the friction coefficient with a large slide coefficient, use the following equation (Inland & Word (
1. Solving the advance rate equation for ) is substituted with the actually measured advance rate f8 and the slide coefficient p, and the friction coefficient μ is determined.
・・−・−・−・−・・ ■ ここで、Ｈ二人側＃ＩＸ厚、 ｈ ：出側板厚、 Ｒ′ ：偏平ロール半径、 σ ：入側有効張力、 σ、：出側有効張力、 ｋ−二人側変形抵抗、 ｋｆ ：出側変形抵抗。・・−・−・−・−・・■ Here, H two person side #IX thickness, h: Exit side plate thickness, R′: flat roll radius, σ ：Entry side effective tension, σ,: Output effective tension, k - two-person side deformation resistance, kf: Output side deformation resistance.
しかし、スライド係数を大きく設定すると、０式の分母
が小さくなるため、摩擦係数μは大きくなり、さらには
、摩擦係数が負の値となる場合があり、摩擦係数モデル
の作成が不可能になる場合があった。However, if the slide coefficient is set to a large value, the denominator of equation 0 becomes small, so the friction coefficient μ increases, and furthermore, the friction coefficient may take a negative value, making it impossible to create a friction coefficient model. There was a case.
さらに、従来のモデルにより潤滑油の供給量を制御する
場合、サイクル後半で負の先進率が予測され、潤滑油の
供給ｍを少なくする設定となると、ロール冷却不足とな
り、ロール温度が上昇し、ヒートストリークが発生する
問題があった。また、ロールバイト内の供給油量につい
てみると、ロールバイト内に供給される油量は、ロール
速度、ロール径、板速度、圧下率、ロールと板の表面状
態等によりほぼ決定され、その量は、スタン１゛入側で
供給される潤滑油に対して非常に少ない、このため、ス
タンド入側で供給される潤滑油量を制限しても、先進率
を制御できる範囲が限られる間理があった。また、スタ
ンド入側で潤滑油量を制限すると、均一にロールや板に
スプレーすることが困難となり、板幅方向で圧延状態が
変化し、板の形状不良が発生する問題があった。Furthermore, when controlling the lubricant supply amount using the conventional model, a negative advance rate is predicted in the latter half of the cycle, and if the lubricant supply m is set to decrease, roll cooling will be insufficient and the roll temperature will rise. There was a problem with heat streaks. In addition, looking at the amount of oil supplied into the roll bite, the amount of oil supplied into the roll bite is almost determined by the roll speed, roll diameter, plate speed, rolling reduction, surface condition of the roll and plate, etc. is very small compared to the lubricating oil supplied at the entrance of the stand 1. Therefore, even if the amount of lubricating oil supplied at the entrance of the stand is limited, the range in which the advance rate can be controlled is limited. was there. Furthermore, if the amount of lubricating oil is restricted at the entry side of the stand, it becomes difficult to uniformly spray the lubricating oil onto the rolls and plates, causing a problem in that the rolling condition changes in the width direction of the plate, causing defects in the shape of the plate.
本発明はかかる問題点を解消するためになされたもので
ある。The present invention has been made to solve these problems.
く課題を解決するための手段〉
本発明は、冷間タンデムミルにおけるストリップの圧延
の際に、圧延時の各スタンドのロール速度と各スタンド
出側の板速度から先進率を求め、得られた先進率から摩
擦係数予測式を、先進率が正の領域と負の領域について
それぞれ作成し、これらの摩擦係数予測式から、目標の
先進率となる潤滑油の濃度を求め、冷間タンデムミル入
側での潤滑油の濃度を設定することを特徴とする冷間圧
延における先進率制御方法である。Means for Solving the Problems> The present invention, when rolling a strip in a cold tandem mill, calculates the advance rate from the roll speed of each stand during rolling and the plate speed at the exit side of each stand. Formulas for predicting the friction coefficient are created from the advanced ratio for regions where the advanced ratio is positive and negative, respectively. From these friction coefficient prediction formulas, the concentration of lubricating oil that will give the target advanced ratio is determined, and This is an advanced rate control method in cold rolling, which is characterized by setting the concentration of lubricating oil at the side.
〈作 用〉
圧延操業において先進率を求めるには、パルスジェネレ
ータなどによりロール速度ｖｌＩを検出し、かつスタン
ド出側の板速度■３は、スタンド出側のテンションロー
ルの回転数をパルスジェネレータにより求めるか、また
は、非接触のレーザードツプラー計により求められる。<Function> To obtain the advance rate in rolling operation, the roll speed vlI is detected by a pulse generator, etc., and the plate speed on the exit side of the stand (3) is determined by using the pulse generator to determine the rotation speed of the tension roll on the exit side of the stand. Alternatively, it can be determined using a non-contact laser Doppler meter.
先進率Ｉｓは、■。The advanced rate Is is ■.
ｆ、＝ −１・・−・・・・−・・−■一
により測定可能となる。得られた先進率！、が正の値と
なる場合には、■′式に代入し、・・・−・・・・・−
・■′
摩擦係数μｍを算出する。さらにｆ、が負の場合にはｆ
ｓ＝ｌｆ龜 １として、同様に■′式に代入し、摩擦係
数ｐ゛を算出する。It becomes possible to measure by f, = -1. Advanced rate obtained! If , is a positive value, substitute it into the expression ■' and get...
・■′ Calculate the friction coefficient μm. Furthermore, if f is negative, then f
Assuming that s=lf=1, similarly substitute it into the equation (■') to calculate the friction coefficient p'.
得られた摩擦係数と圧延条件（圧下率（ｒ）、ロール速
度（Ｖ絢）、入側張力（Ｔｈ）、出側張力（Ｔ、）、入
側板厚（Ｈ）、出側板厚（ｈ）、入側変形抵抗（ｋｂ
） 、出側変形抵抗（ｋ、）、圧延距１１Ｍ（Ｌ諏）等
）により重回帰により、以下の摩擦係数式を作成する。Obtained friction coefficient and rolling conditions (reduction ratio (r), roll speed (V), entry tension (Th), exit tension (T,), entry side plate thickness (H), exit side plate thickness (h) , entry side deformation resistance (kb
), exit side deformation resistance (k, ), rolling distance 11M (L), etc.), the following friction coefficient formula is created by multiple regression.
ｐ” ｍｆ” （ｃ、ｒ％Ｖｍ 、Ｔｔ 、、Ｔｈ
ｓ Ｈ％ｋｇ、ｋｈ、Ｌｍ・・・） ・・・−・−
・・・−■ｐ−−ｆ−（ｃ、ｒＳＶ、、Ｔ、、Ｔ、、Ｈ
ｌｋｔ−ｋｂ、Ｌ寓 ・・・） ・−・・・
−・−・・・■■、０式から、目標の先進率ｆ；となる
次コイルの摩擦係数を求める方法を以下に述べる。p"mf" (c, r%Vm, Tt,, Th
s H%kg, kh, Lm...) ・・・-・-
...-■p--f-(c, rSV,,T,,T,,H
lkt-kb, L fable ...) ...
The method for determining the friction coefficient of the next coil that gives the target advance rate f from the equation 0 will be described below.
次コイルの初期圧延条件により、■、０式から摩擦係数
μ゛、μｍを求めておき、目標先進率ｆ：から■′式に
より（ｆ；が負の場合はｌ ｒ： ｌ ） 、摩擦係数
μ′を求める。 ｒ：が正の場合には、μ０とμ°を比
較し、ｆ；が負の場合には、μ０とμｍを比較する。Next, according to the initial rolling conditions of the coil, calculate the friction coefficients μ゛ and μm from the equations ① and 0, and calculate the coefficient of friction from the target advance rate f: using the formula ② (if f; is negative, l r: l ), Find μ′. When r: is positive, μ0 and μ° are compared, and when f; is negative, μ0 and μm are compared.
次にμｍとμ゛、μｍの差、
Δμ゛＝μ０−μ４ パ−“−゛°゛０
６μｍ＝μｍ−μ０ ・・・−−−−一
−−■を求め、Δμ゛、６８ｍを０とするように■、０
式を用いて潤滑油濃度Ｃを算出する。重回帰で作成した
■、０式は、以下の■、０式で示される。Next, μm and μ゛, the difference between μm, Δμ゛=μ0−μ4 Par−“−゛°゛0
6μm=μm-μ0 ...----1-- Find ■, 0 so that Δμ゛, 68m is 0
Calculate the lubricating oil concentration C using the formula. The formula ■,0 created by multiple regression is shown as the formula ■,0 below.
ｕ ０＝ ａ 、４− ａ 、ｃ ’ ＋＋
−ト ａ ｘ ｒ ＋ ａ ｓ ■＋＋＋
ａ ａ ｒ −一・−■
μｍ＝ｂｏ＋ｂ＋ｃ−１＋ｂｚｒ＋ｂｉＶ＋＋＋ｂ４ｒ
−−・・−・−■
但し、ｎ、ｍ、 ａＲ、ｂ＋ｍは定数。u 0 = a , 4- a , c' ++
-t a x r + a s ■＋++
a a r -1・-■ μm=bo+b+c-1+bzr+biV+++b4r
−−・・−・−■ However, n, m, aR, b+m are constants.
ここで、Δμ゛または６８ｍをＯとするＣを求めると以
下の式となり、
■
・・・−・・・−・・ ［相］
■、［相］式から濃度が決定できる。Here, if Δμ゛ or 68m is O, the following formula is obtained, and the concentration can be determined from the following formula: (1) . . . [Phase] (2), [Phase].
圧延油の濃度により先進率が変更可能な理由は、ロール
バイト内の導入される潤滑油量（濃度が高いほど潤滑油
量は増大する）が多くなると、摩擦係数が小さくなるた
めである。第２図は、潤滑油の濃度と先進率の関係を示
す図であり、高濃度の潤滑油で圧延するほど先進率は小
さくなる。なお、第２図の圧延条件は、圧下率３０％、
ロール速度１０００＋＋ｍ／＊ｎｎ、ロール直径３８０
ｍとし、背進鋼板を圧延したものである。The reason why the advance rate can be changed by changing the concentration of rolling oil is that as the amount of lubricating oil introduced into the roll bit (the higher the concentration, the larger the amount of lubricating oil), the smaller the coefficient of friction becomes. FIG. 2 is a diagram showing the relationship between the concentration of lubricating oil and the advance rate, and the higher the concentration of lubricating oil is used for rolling, the smaller the advance rate becomes. The rolling conditions in Figure 2 are a reduction rate of 30%,
Roll speed 1000++m/*nn, roll diameter 380
m, and is obtained by rolling a retrograde steel plate.
〈実施例〉 次に、本発明の詳細な説明する。<Example> Next, the present invention will be explained in detail.
第１図は、本発明が適用された圧延機の一例を示した図
である。FIG. 1 is a diagram showing an example of a rolling mill to which the present invention is applied.
第１図において、１はストリップ、２は冷間タンデムミ
ルの第１スタンド、３は第２スタンドであり、４はペイ
オフリール、５はテンシゴンリールである。In FIG. 1, 1 is a strip, 2 is a first stand of a cold tandem mill, 3 is a second stand, 4 is a payoff reel, and 5 is a tensigon reel.
６は、第１スタンド２及び第２スタンド３の入側にそれ
ぞれ設けた潤滑油のスプレーノズルである。Reference numeral 6 denotes lubricating oil spray nozzles provided on the inlet sides of the first stand 2 and the second stand 3, respectively.
そして、スプレーノズル６に供給される潤滑油の濃度は
、目標の先進率となる潤滑油の濃度Ｃを与えるように、
高濃度の潤滑油を供給するタンク７と低濃度の潤滑油を
供給するタンク８とから、両者を混合するタンク９によ
って目標の濃度が作られる。１度Ｃは、０式、［相］式
を演算する演算機１０と濃度を制御するポンプ圧制御装
置１１によって制御される０図中１２はポンプである。The concentration of the lubricating oil supplied to the spray nozzle 6 is set so as to give a lubricating oil concentration C that provides the target advance rate.
A target concentration is created from a tank 7 that supplies lubricating oil with a high concentration and a tank 8 that supplies lubricating oil with a low concentration by a tank 9 that mixes both. 1 degree C is controlled by a computer 10 that calculates the 0 equation and [phase] equation, and a pump pressure control device 11 that controls the concentration. 12 in the figure is a pump.
次に、第２図は本発明の別の実施例を示した全体構成図
である。Next, FIG. 2 is an overall configuration diagram showing another embodiment of the present invention.
この実施例は、第１図の潤滑油の混合を、スプレーノズ
ル６′で行うものであって、本実施例でも、濃度比Ｃを
演算する演算ｉｉｏ’と濃度を制御するポンプ圧制御装
置１１′によって、目標の濃度Ｃが達成される。なお他
の符号は、第１図と同じものである。In this embodiment, the lubricating oil shown in FIG. 1 is mixed using a spray nozzle 6', and in this embodiment as well, a calculation iio' for calculating the concentration ratio C and a pump pressure control device 11 for controlling the concentration are used. ', the target concentration C is achieved. Note that the other symbols are the same as in FIG.
次に、本発明の具体的な実施例について説明する。Next, specific examples of the present invention will be described.
第４図は、本発明の実施例と従来の先進率の制御を行わ
ない場合を比較して示した図である。圧延機仕様は、３
スタンドタンデム圧延機で以下の条件で圧延を行った。FIG. 4 is a diagram showing a comparison between the embodiment of the present invention and the conventional case where advanced rate control is not performed. The rolling machine specifications are 3
Rolling was performed in a stand tandem rolling mill under the following conditions.
ワークロール直径： ３８０ｍ
圧 延 材：普通鋼
板 輻： １０００■
板 厚；母板２．３鴫、製品０．５＋ｍ第４
図（ａ）は、本発明を適応したＮα３スタンドの操業を
示し、各コイルの最大速度を一定の１０００ｍ／ｍとし
、かつ先進率を０％程度に一定に保つことができた。第
４図（ｂ）は、従来の圧延法の場合で、先進率が小さ（
なるため、圧延本数の増加に伴い、圧延速度を減少させ
たが、４０本目でチャタリングを発生し、これ以降の圧
延が不能となった。Work roll diameter: 380m Rolling material: Ordinary steel plate Radius: 1000■ Plate thickness: Mother plate 2.3mm, product 0.5+m 4th
Figure (a) shows the operation of the Nα3 stand to which the present invention is applied, in which the maximum speed of each coil was kept constant at 1000 m/m, and the advance rate could be kept constant at about 0%. Figure 4(b) shows the case of the conventional rolling method, where the advance rate is small (
Therefore, the rolling speed was reduced as the number of rolls increased, but chattering occurred at the 40th roll, making further rolling impossible.
〈発明の効果〉
以上説明したように、本発明によれば、先進率を適正な
範囲に制御でき、スリップ、板厚精度不良を防止でき、
同一ロールで圧延できるコイル数を増大することができ
る。<Effects of the Invention> As explained above, according to the present invention, the advance rate can be controlled within an appropriate range, slippage and poor plate thickness accuracy can be prevented,
The number of coils that can be rolled with the same roll can be increased.
第１図は本発明の実施例を示し、第２図は本発明の別の
実施例を示す、第３図は潤滑油の濃度により先進率が変
化することを示す図である。第４図（ａ）は本発明が適
用された操業結果の例を示す図、第４図（ｂ）は従来法
による操業結果の例を示す図である。
ｌ・・・ストリップ、
２・・・第１スタンド、
３・・・第２スタンド、
４・・・ペイオフリール、
５・・・テンシコンリール、
６．６′・・・スプレーノズル、
７・・・高濃度潤滑油タンク、
８・・・低濃度潤滑油タンク、
９・・・混合タンク、
１０．１０′・・・濃度演算装置、
ｔｉ、 ｏ’・・・ポンプ圧制御装置、１２・・・ポン
プ。FIG. 1 shows an embodiment of the present invention, FIG. 2 shows another embodiment of the invention, and FIG. 3 is a diagram showing that the advance rate changes depending on the concentration of lubricating oil. FIG. 4(a) is a diagram showing an example of an operation result to which the present invention is applied, and FIG. 4(b) is a diagram showing an example of an operation result by the conventional method. l...Strip, 2...First stand, 3...Second stand, 4...Payoff reel, 5...Tensicon reel, 6.6'...Spray nozzle, 7... -High concentration lubricating oil tank, 8...Low concentration lubricating oil tank, 9...Mixing tank, 10.10'...Concentration calculation device, ti, o'...Pump pressure control device, 12... ·pump.
Claims (1)
延時の各スタンドのロール速度と各スタンド出側の板速
度から先進率を求め、得られた先進率から摩擦係数予測
式を、先進率が正の領域と負の領域についてそれぞれ作
成し、これらの摩擦係数予測式から、目標の先進率とな
る潤滑油の濃度を求め、冷間タンデムミル入側での潤滑
油の濃度を設定することを特徴とする冷間圧延における
先進率制御方法。When rolling strip in a cold tandem mill, the advance rate is determined from the roll speed of each stand during rolling and the plate speed at the exit side of each stand, and the friction coefficient prediction formula is calculated from the obtained advance rate to determine if the advance rate is correct. The lubricating oil concentration at the entrance side of the cold tandem mill is set by creating the lubricating oil concentration that will give the target advance rate from these friction coefficient prediction formulas. An advanced rate control method in cold rolling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1288661A JPH03151106A (en) | 1989-11-08 | 1989-11-08 | Method for controlling forward slip ratio in cold rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1288661A JPH03151106A (en) | 1989-11-08 | 1989-11-08 | Method for controlling forward slip ratio in cold rolling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03151106A true JPH03151106A (en) | 1991-06-27 |
Family
ID=17733048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1288661A Pending JPH03151106A (en) | 1989-11-08 | 1989-11-08 | Method for controlling forward slip ratio in cold rolling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03151106A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100349139B1 (en) * | 1995-12-30 | 2003-01-06 | 주식회사 포스코 | Method for predicting coefficient of friction in cold rolling |
| WO2006054781A1 (en) * | 2004-11-22 | 2006-05-26 | Nippon Steel Corporation | Method for supplying lubricant in cold rolling |
| WO2015097488A1 (en) * | 2013-12-24 | 2015-07-02 | Arcelormittal Investigación Y Desarrollo Sl | Hot rolling method |
| JP6241582B1 (en) * | 2016-08-19 | 2017-12-06 | Ｊｆｅスチール株式会社 | Steel sheet cold rolling method and steel plate manufacturing method |
| WO2018034061A1 (en) * | 2016-08-19 | 2018-02-22 | Ｊｆｅスチール株式会社 | Method for cold rolling steel sheet, and method for manufacturing steel sheet |
| WO2020104150A1 (en) * | 2018-11-23 | 2020-05-28 | Cockerill Maintenance & Ingenierie S.A. | Improved method of running a cold rolling mill |
-
1989
- 1989-11-08 JP JP1288661A patent/JPH03151106A/en active Pending
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100349139B1 (en) * | 1995-12-30 | 2003-01-06 | 주식회사 포스코 | Method for predicting coefficient of friction in cold rolling |
| WO2006054781A1 (en) * | 2004-11-22 | 2006-05-26 | Nippon Steel Corporation | Method for supplying lubricant in cold rolling |
| KR100867017B1 (en) * | 2004-11-22 | 2008-11-10 | 신닛뽄세이테쯔 카부시키카이샤 | Method for supplying lubricant in cold rolling |
| US8047035B2 (en) | 2004-11-22 | 2011-11-01 | Nippon Steel Corporation | Method of supplying lubricating oil in cold-rolling |
| EP2353741A3 (en) * | 2004-11-22 | 2012-05-09 | ArcelorMittal France | Method for supplying lubricant in cold rolling |
| US8356501B2 (en) | 2004-11-22 | 2013-01-22 | Nippon Steel Corporation | Method of supplying lubricating oil in cold-rolling |
| US8584499B2 (en) | 2004-11-22 | 2013-11-19 | Nippon Steel & Sumitomo Metal Corporation | Method of supplying lubricating oil in cold-rolling |
| RU2670630C9 (en) * | 2013-12-24 | 2018-11-26 | Арселормиттал | Hot-rolling method |
| RU2670630C2 (en) * | 2013-12-24 | 2018-10-24 | Арселормиттал | Hot-rolling method |
| WO2015097488A1 (en) * | 2013-12-24 | 2015-07-02 | Arcelormittal Investigación Y Desarrollo Sl | Hot rolling method |
| US10870138B2 (en) | 2013-12-24 | 2020-12-22 | Arcelormittal | Hot rolling method |
| JP6241582B1 (en) * | 2016-08-19 | 2017-12-06 | Ｊｆｅスチール株式会社 | Steel sheet cold rolling method and steel plate manufacturing method |
| WO2018034061A1 (en) * | 2016-08-19 | 2018-02-22 | Ｊｆｅスチール株式会社 | Method for cold rolling steel sheet, and method for manufacturing steel sheet |
| TWI624313B (en) * | 2016-08-19 | 2018-05-21 | 杰富意鋼鐵股份有限公司 | Cold rolling method of steel plate and manufacturing method of steel plate |
| KR20190025008A (en) * | 2016-08-19 | 2019-03-08 | 제이에프이 스틸 가부시키가이샤 | Cold rolling method of steel sheet and manufacturing method of steel sheet |
| CN109562421A (en) * | 2016-08-19 | 2019-04-02 | 杰富意钢铁株式会社 | The cold rolling process of steel plate and the manufacturing method of steel plate |
| CN109562421B (en) * | 2016-08-19 | 2020-04-14 | 杰富意钢铁株式会社 | Method for cold rolling steel sheet and method for manufacturing steel sheet |
| WO2020104150A1 (en) * | 2018-11-23 | 2020-05-28 | Cockerill Maintenance & Ingenierie S.A. | Improved method of running a cold rolling mill |
| EP3883702B1 (en) | 2018-11-23 | 2022-10-19 | John Cockerill S.A. | Improved method of running a cold rolling mill |
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