WO2002040188A1 - Depressing position setting method for rolling plate - Google Patents
Depressing position setting method for rolling plate Download PDFInfo
- Publication number
- WO2002040188A1 WO2002040188A1 PCT/JP2001/010064 JP0110064W WO0240188A1 WO 2002040188 A1 WO2002040188 A1 WO 2002040188A1 JP 0110064 W JP0110064 W JP 0110064W WO 0240188 A1 WO0240188 A1 WO 0240188A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rolling
- thrust
- time
- reaction force
- setting
- 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.)
- Ceased
Links
Classifications
-
- 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
-
- 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
- B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
- B21B2038/002—Measuring axial forces of rolls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2269/00—Roll bending or shifting
- B21B2269/12—Axial shifting the rolls
- B21B2269/14—Work rolls
-
- 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
- B21B37/58—Roll-force control; Roll-gap control
Definitions
- the present invention relates to a rolling position setting method for suppressing a thickness change and a thickness-to-edge change at a tip end of a rolled sheet, in particular, to improve dimensional accuracy and rollability of a material to be rolled, Things.
- the rolled steel sheet may be subjected to rolling.
- a thrust force is also generated between the rolling plate and the (up and down) work rolls.
- the rolling load difference (hereinafter referred to as the rolling load difference) changes, and the amount of deformation of the rolling mill, the so-called stretch, changes. (Thickness difference), which is a cause of not only poor dimensional accuracy but also meandering trample caused by meandering and campers.
- the method of adjusting the rolling position in consideration of this thrust force is as described above.
- a mechanism that supports thrust force for example, the detection value of thrust reaction force (and its change) generated in the key plate of the work roll chuck, and the detection obtained by other reaction force detection means such as rolling load
- a method of adjusting the rolling position according to the estimated thrust force value (and its change) estimated based on the value (hereinafter referred to as the rolling position control technology taking into account the measured thrust force) It is broadly classified into a method of setting the rolling position in advance based on the predicted thrust force (hereinafter referred to as a rolling position setting technology considering the predicted thrust force).
- the prior art classified into the rolling position control technology in consideration of the actually measured thrust force (hereinafter referred to as the actually measured thrust force) is disclosed in, for example, Japanese Patent Application Laid-Open No. 59-144511.
- a thrust counterforce detector is installed on the support mechanism for the displacement of the work roll in the rotation axis direction, and the rolling position is adjusted according to the detection value from the detector during rolling and the detection values of the left and right rolling loads.
- the work roll and the plate to be rolled are determined based on the detected values of the rolling loads at the upper, lower and left and right four points of the housing during rolling.
- a method of estimating the thrust force and adjusting the rolling position according to the estimated value of the thrust force there is a method of estimating the thrust force and adjusting the rolling position according to the estimated value of the thrust force.
- a conventional technology classified into a rolling position setting technology in consideration of a predicted thrust force hereinafter, referred to as a predicted thrust force
- Japanese Patent Application Laid-Open No. 6-154832 discloses.
- the thrust force generated during the next pass rolling is predicted based on the rolling performance of the previous pass and the rolling position is set in consideration of the thrust force.
- the roll-down position control technology that takes into account the measured thrust force using various detected values (and changes thereof) during rolling involves detection ⁇ calculation (calculation of the roll-down position correction amount) ⁇ roll-down position correction.
- a time margin (a so-called control cycle) is required for the operation.
- the end of the plate to be rolled passes through the rolling mill between the subsequent stands of the hot finishing rolling mill. It is essentially incapable of responding to changes that occur within a short period of time, and its scope of application is limited.
- the detected value is mixed with non-negligible disturbance. It is extremely difficult to suppress and control the thickness of the sheet tip, the thickness of the sheet, the change in edge, and the resulting meandering and campering in the threading.
- the rolling position setting technique of setting the rolling position in consideration of the predicted thruster before the start of rolling does not essentially cause the above-described difficulty, but is disclosed in the above-mentioned Japanese Patent Application Laid-Open No. 6-154832.
- the conventional technology even if a thrust force equal to the predicted value is actually generated, it is possible to cope with the change in the thickness of the rolled sheet tip and the change in the thickness wedge due to the reasons described later. Therefore, practically sufficient effects cannot be obtained.
- the present invention solves the above-mentioned various problems found in the prior art, and changes in the amount of mill stretch after penetration of the leading end of a plate to be rolled by thrust, and changes in the sheet thickness and the sheet thickness ledge caused by the change.
- To provide a rolling position setting method that can improve the dimensional accuracy of the product and eliminate the trouble of passing through due to meandering and camber by accurately considering the The purpose is to: Disclosure of the invention
- the present invention has been made to achieve the above-mentioned object, and the gist thereof is as follows. '
- the rolled plate and the work roll are set at the setting of the rolling position at the rolling start time.
- the set value is determined based on the predicted value of the thrust force between the rolling plate and the thrust force between the work roll and the work roll, and at least one or more points when the thrust reaction force is stabilized.
- the time when the thrust reaction force is stabilized is a time when a predetermined period of time has elapsed from the start of rolling, and before the start of rolling, the rolling position is set at the rolling position at the start of rolling, and
- the rolling position is set based on the predicted value of the thrust force, and after the start of rolling, the thrust is set. After the thrust reaction force generated at the force support point becomes stable, the predicted value of the thrust force and the measured value of Z or the thrust reaction force during rolling and the Z or the right and left rolling loads A rolling position setting method in sheet rolling, wherein the rolling position is set based on the following.
- the point in time at which a predetermined time has elapsed from the start of rolling is defined as a point in time at least 0.2 seconds or more from the start of rolling.
- a predetermined time determined from the above-mentioned rolling start time is determined based on the cross angle between the upper and lower work rolls and the rotation distance of the work roll surface after the rolled plate is inserted.
- the predetermined time determined from the start of the rolling described above is determined based on the rolling results up to the previous rolling material or the previous pass.
- the stability of thrust reaction force detected using the thrust reaction force detection means is monitored after the start of rolling, and the thrust reaction force is monitored.
- the point at which the thrust reaction force is determined to be stable is defined as the point at which the thrust reaction force has stabilized.
- the stability of the thrust reaction force is evaluated by the time change rate of the thrust reaction force or the value obtained by dividing the time change rate by the rotation speed of the work roll, and the time change rate or The time when the value obtained by dividing the time change rate by the rotation speed of the work roll becomes equal to or less than a predetermined value is defined as the time when it is determined that the thrust reaction force is stabilized (9). Or, the method for setting the rolling position in sheet rolling according to any one of the above (11).
- FIG. 1 shows one embodiment of the method according to the item (1) or (2) of the present invention.
- FIG. 2 is a diagram showing an example of a time change of a thrust reaction force and a measured value of a difference between right and left rolling loads after the tip end of the plate to be rolled was taken in devising the method of the present invention.
- FIG. 3 is a schematic diagram showing an example of the structure of a plate rolling mill to which the method of the present invention is applied.
- FIG. 4 is a schematic diagram showing definitions of various physical quantities used in explaining the operation of the method of the present invention.
- FIG. 5 is a schematic view showing one embodiment of the method according to the above mode (9).
- the present inventors first adjusted the thrust to be constant (thrust between the work roll and the work roll and / or between the work roll and the reinforcing roll).
- Thrust reaction force immediately after the penetration in the figure, measured with a load detector attached to the thrust bearing of the working port
- the measured value of the difference between the left and right rolling loads in the figure, the (Shown by smoothing the vibrations caused by the impact force) changed remarkably and was found to be stable after a certain period of time.
- the thickness and the thickness edge of the front end portion of the rolled sheet after rolling were changed substantially in accordance with the change in the actually measured value.
- This phenomenon generally occurs, for example, between the work roll chuck and the key plate (in the case of a rolling mill having a shift device for rotating the work roll in the axial direction), the roll rotating shaft is located between the work roll chuck and the chuck device of the shift device.
- direction Roll gaps are free-running before rolling (thrust force is zero or very small) due to the existence of an undesired gap, so-called play (hereinafter referred to as “thrust play”) and elastic (contact) deformation of the relevant portion.
- the thrust force (or, for example, in the case of a four-high rolling mill, the thrust force between the work roll and the work roll and the combined force of the thrust force between the work roll and the reinforcing roll) after the start of rolling
- the thrust reaction force starts to increase from the point of contact with the key plate, and the thrust is sufficient to support the movement of the roll chuck in the rotation axis direction due to the thrust force (or the resultant force). It is understood that when the reaction force is reached, the movement of the portal in the direction of the rotation axis stops, and the thrust reaction force is stabilized. It is also understood that even when the thrust force is constant, the moment acting on each roll changes due to the change in the thrust reaction force, so that the difference between the right and left rolling loads also fluctuates.
- the change in the thrust reaction force and the difference between the left and right rolling loads after the start of rolling, and the resulting change in the plate thickness at the tip end of the rolled plate and the plate thickness edge are caused by the above-mentioned thrust in the thrust direction and the roll chuck.
- the rolling position is set in consideration of the change after the start of the rolling in advance, that is, the rolling start time and the thrust reaction force It was concluded that it was indispensable to set the rolling position at each time individually in order to obtain the optimum rolling position at each time when the time became stable.
- the present invention has been made based on the above findings.
- FIG. 3 is a schematic view showing one embodiment of a plate rolling mill to which the method of the present invention is applied, taking a four-high rolling mill as an example.
- the plate 3 to be rolled is composed of upper and lower reinforcing rolls 5a. , 5b are rolled between the upper and lower work rolls 4a, 4b.
- the upper and lower reinforcing rolls 5a and 5b are 7a, 7b, 7c, and 7d are supported at both ends, and the upper and lower work rolls 4a and 4b are supported by work roll chicks 6a, 6b, 6c, and 6d. Both ends are supported, and the upper and lower roll shift mechanisms 10a and 10b adjust the position in the roll rotation axis direction.
- the rolling position set value calculated by the rolling position setting computer 1 is sent to the rolling devices 2a and 2b, and the rolling position is adjusted to the set value.
- the thrust reaction force detectors 8a and 8b and the rolling load detectors 9a, 9b, 9c and 9d are provided with the rate of change of the thrust reaction force after the start of rolling described later. (Stability).
- the terms “upper” and “lower” mean above or below the plate to be rolled.
- Fig. 4 is a schematic diagram showing the forces (including the reaction force and the load; the force in the direction of the arrow in the figure is assumed to be positive) and dimensions used in the following description, and the physical meaning of each symbol. The amounts are as follows:
- T W W M M Thrust between the rolled plate and the work roll
- T ff BT Restaurant T , T WB B Thrust force acting between work rolls and reinforcing rolls, where the superscripts indicate T: upper side, B: lower side, and so on.
- T Thrust reaction force acting on the work roll.
- PPP df B Difference between left and right rolling reaction force (load).
- the difference between the left and right physical quantities is defined as [physical quantity on the working side]-[physical quantity on the driving side].
- FIG. 1 is a schematic diagram showing one embodiment of the method shown in (1) or (2) of the present invention.
- thrust between the plate to be rolled and the work roll and thrust between the work roll and the reinforcing roll during rolling are predicted.
- the thrust force T WM between the plate to be rolled and the work rolls for example, a conventional technique disclosed in Japanese Patent Application Laid-Open No. Hei 6-154832 may be used.
- the previous pass in the case of repurse rolling
- the thrust force during rolling of the pre-rolled material in the case of tandem rolling
- prediction may be made using the following equation (1).
- T ff B P red Predicted value of thrust force between work rolls and reinforcement rolls
- T Prepare idnt Work rolls and reinforcement rolls during rolling of previous pass or front material
- Ppred predicted value of rolling load (right and left resultant force) in a rolling pass to which the method of the present invention is applied
- R 1 d Rolling conditions for pre-pass or pre-rolled material (eg, thickness, width, rolling reduction, etc.)
- R new rolling conditions in a rolling pass to which the method of the present invention is applied
- the calculation of the rolling set position at both times may be performed using, for example, the following equations ⁇ 2> to ⁇ 5>.
- Thickness after rolling (What is the thickness at the center of the width or the average thickness in the width direction) It may be. However, in the following explanation, it is defined as the width center plate thickness).
- h df aiffl Target value of left and right difference (thickness wedge) of the thickness after rolling.
- the predicted value p df pr "of the left-right difference in the surface pressure between the rolled plate and the working opening may be calculated based on, for example, the left-right temperature difference of the rolled plate, the thickness before rolling, and the edge.
- the rolling setting position S 1 calculated at the start of rolling, which was calculated using the rolling position setting computer 1 in accordance with the formulas 2> and ⁇ 3> as described above, is sent to the rolling devices 2a and 2b. Prior to the start of rolling, the rolling position is adjusted to the set position, and rolling is started. As described above, the thrust reaction force starts to change after the start of rolling, and transitions to a stable state. For example, when it is determined that the thrust reaction force is stabilized by the method described later, the rolling position setting calculator 1 stabilizes the stored thrust reaction force according to the equations 4> and ⁇ 5> as described above.
- the current reduction setting positions S 2 and S df 2 are sent to the reduction devices 2 a and 2 b, and the reduction positions are corrected to the corresponding setting positions.
- the influence term of P red may be omitted.
- the thrust force between the work plate and the work roll and the thrust force between the work roll and the reinforcing roll T WB can be individually predicted both at the start of rolling and when the thrust reaction force is stabilized.
- the predicted value of thrust between the rolled plate and the work roll at the start of rolling is ⁇ WM red - 1 and the supplementary value of the work roll.
- the predicted value of thrust toka between strong rolls ⁇ " -1 the ⁇ 4> equation
- the predicted value T of the thrust force between the rolled plate and the work roll and the predicted value T of the thrust force between the work roll and the reinforcing roll when the thrust reaction force becomes stable are calculated. It may be used to calculate the rolling reduction position at both times.
- a predicted value of the inter-roll thrust force defined for each roll-to-roll contact interface can be obtained.
- the following formulas (2-1) to (5-—) may be used.
- ⁇ S (P) Mill stretch amount (defined at the center of the sheet width) when the rolling load (right and left resultant force) is P,
- ⁇ S ff (P) The amount of change in the working roll opening (defined by the widthwise edge position on the working side of the plate to be rolled) when the rolling load acting on the working reinforcing roll support point is P,
- ⁇ S D (P) The amount of change in the drive roll opening (defined by the widthwise edge position of the drive side of the plate to be rolled) when the rolling load acting on the drive side reinforcing roll support point is P,
- C w (P) The tangent slope (compliance) of AS ff (P) when the rolling load acting on the working side reinforcing roll support point is P,
- the stability of the thrust reaction force may be determined to be stable when a predetermined period of time has elapsed from the start of rolling. At that time, in order to avoid the influence of the impact force due to the penetration of the end of the plate to be rolled and the effect of the response time of the rolling devices 2a and 2b, at least 0.2 seconds have elapsed since the start of rolling. In the case of a normal plate rolling mill, if it is less than 0.2 seconds, it is highly likely that the rolling load / thrust reaction force fluctuates significantly due to the impact force and the response time of the rolling device. If the method described in 5) is applied, the setting of the rolling position will fluctuate extremely and the risk of passing troubles will increase.
- the time required for the last reaction force to stabilize is expected to be approximately proportional to the relative (rolling) sliding distance between the plate to be rolled and the work roll after the start of rolling in the direction of the roll rotation axis.
- the cross angle that is, the relative slip angle 0 slip X 2 between the rolled plate and the work roll
- L the speed of the work roll peripheral speed from the start of rolling.
- the rolling mill used has a thrust reaction force detecting means, for example, the work rolls 4a and 4b and the roll shift mechanisms 10a and 10b as shown in the rolling mill schematically shown in FIG.
- the thrust reaction force detectors 8a and 8b are provided between the two, the method described in the item (9) of the present invention is applied (see FIG. 5), for example, as an index of stability.
- the time change rate (change rate) of the measured values of the thrust reaction detectors 8a and 8b after the start of rolling is monitored, and when the absolute value of the change rate becomes equal to or smaller than a predetermined small value, the thrust is started.
- the reaction force may be determined to be stable.
- d (T w (t)) / dt is the rate of change of the thrust reaction force over time at the current time.
- the above-mentioned measured value of the thrust reaction and the temporal change rate of the difference between the left and right rolling loads from the start of rolling are the temporal change rates of the relative sliding distance between the plate to be rolled and the work roll in the roll rotation axis direction, that is, If the roll rotation speed changes after the start of rolling because it seems to depend on the relative slip speed, the value obtained by dividing the time change rate of the thrust reaction force or the rolling load difference by the roll rotation speed may be used. Also, for example,
- the thrust reaction force detector and / or rolling load detector must be at the upper and lower sides. placed in both thrust preparative anti mosquitoes when determining the stability of the thrust preparative reaction force T w and based on the detected values of both (e.g., the upper, both of the lower test detection value satisfies the above conditions It is preferable to determine that T w is stable), but only one of the upper and lower sides It may be detection.
- both the thrust counterforce detector and the rolling load detector may be arranged on the upper and / or lower sides, and different detectors are used for the upper and lower sides (for example, the lower side is a rolling load detector, the upper side is a rolling load detector).
- Thrust reaction force detector may be arranged.
- thrust reaction force detectors may be provided for some or all of the intermediate stall group located between the work stall and the reinforcing stall.
- the thrust reaction force detection means only needs to be sufficient to judge the above-mentioned rate of change of the detection value, and it is not necessary to use a detection device having excellent absolute value accuracy and resolution like a so-called load cell.
- the rolling position may be adjusted based on the value measured by the detector. For example, in this case, after the thrust reaction force becomes stable, it is considered that the moment condition equation described in Equation 8 above is satisfied, and the measured value of the left and right rolling load difference is calculated by the same equation.
- the predicted value of the thrust force between the rolled sheet and the work port in the right side of the equation T WM pred or the predicted value of the thrust force at the contact interface between the work roll and the reinforcing roll T it can be obtained as estimated values of either one of the WB P r ed (left-right difference of the surface pressure between the work port Lumpur and the rolled plate predictors P df P l: using ed).
- the estimated thrust force based on this measured value is
- the so-called pattern control method in which the rolling position between the two points is smoothly changed using a function with the predetermined elapsed time as an independent variable,
- the rolling reduction position is set based on the predicted value before rolling, and then calculated from the above-mentioned moment-by-moment measurement values (or the estimated thrust force calculated from the measurement values).
- a well-known control method such as a so-called operation amount acceleration / deceleration process for gradually shifting to the roll-down position can be used for adjusting the roll-down position in the present invention.
- the present invention is applied to the calculation of the left and right difference S 1 and S df 2 of the reduction setting position (Eq. ⁇ 3> above).
- 3 ⁇ > Equation and Equation 5> Equation 5 ⁇ ] ⁇ Calculation using Equation>) may be performed only for the rolling position adjustment.
- the calculation of the left and right average values S 1 and S 2 of the rolling reduction position may be performed by a conventionally used formula, for example, by the following formula 10>.
- a so-called learning technique is applied to the method of the present invention, and a pre-pass or pre-rolled material is used. For example, based on the rolling results up to, for example, the learning terms S lr , S l rn " 2 , Sdf"" -1 and S df lrn " 2 of the rolling reduction position are calculated, and this is taken into account (for example, ⁇ 2> expression ⁇ ⁇ 5> expression, ...
- the reduction setting position may be calculated (by adding each learning term corresponding to the right side of the expression 5 ⁇ m>).
- T WM pr ed ⁇ ( ⁇ ) P t pred rather than 11>
- T WB pr ed ⁇ p r ed rather 12>
- alpha (theta) is a coefficient term determined for each cross angle 0, was identified from the rolling track record data for advance various cross angle.
- the method described in paragraph (12) of the present invention was used, and the values measured by the left and right rolling load detectors installed on the upper side were used as described in ⁇ 9.
- the estimated value of the change in thrust reaction force is calculated by substituting into equation 9_ ⁇ > derived from the equation below, and the time change rate of the estimated value is divided by the rotational speed of the working port ( The absolute value was determined to be stable when the various rolling performance data became equal to or less than the predetermined judgment value.
- the dimensional accuracy of the rolled sheet is dramatically improved by suppressing the change in the sheet thickness and the change in the sheet thickness margin, particularly at the end of the rolled sheet, during the rolling. And the threading performance can be improved as much as possible.
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- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Description
Claims
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2002215224A AU2002215224A1 (en) | 2000-11-17 | 2001-11-16 | Depressing position setting method for rolling plate |
| DE60135777T DE60135777D1 (de) | 2000-11-17 | 2001-11-16 | Niederdrückpositionseinstellverfahren zum walzen einer platte |
| KR10-2003-7006662A KR100534499B1 (ko) | 2000-11-17 | 2001-11-16 | 판압연에 있어서의 압하 위치 설정 방법 |
| EP01983817A EP1344582B1 (en) | 2000-11-17 | 2001-11-16 | Screw down position setting method for rolling plate |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000-350828 | 2000-11-17 | ||
| JP2000350828 | 2000-11-17 | ||
| JP2001-321819 | 2001-10-19 | ||
| JP2001321819A JP3863751B2 (ja) | 2000-11-17 | 2001-10-19 | 板圧延における圧下位置設定方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2002040188A1 true WO2002040188A1 (en) | 2002-05-23 |
Family
ID=26604157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2001/010064 Ceased WO2002040188A1 (en) | 2000-11-17 | 2001-11-16 | Depressing position setting method for rolling plate |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1344582B1 (ja) |
| JP (1) | JP3863751B2 (ja) |
| KR (1) | KR100534499B1 (ja) |
| CN (1) | CN1229191C (ja) |
| AU (1) | AU2002215224A1 (ja) |
| DE (1) | DE60135777D1 (ja) |
| WO (1) | WO2002040188A1 (ja) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102397885B (zh) * | 2010-09-18 | 2013-09-04 | 中冶东方工程技术有限公司秦皇岛研究设计院 | 一种脉冲轧制方法 |
| EP2910316A1 (de) | 2014-02-21 | 2015-08-26 | Primetals Technologies Germany GmbH | Einfache Vorsteuerung einer Keilanstellung eines Vorgerüsts |
| EP3838433B1 (en) * | 2018-08-13 | 2023-05-03 | Nippon Steel Corporation | Method for identifying thrust reaction force acting point, and rolling method for rolled material |
| JP7127446B2 (ja) * | 2018-09-12 | 2022-08-30 | 日本製鉄株式会社 | 圧延機の設定方法 |
| US11850644B2 (en) | 2019-04-19 | 2023-12-26 | Nippon Steel Corporation | Zigzagging control method for workpiece |
| CN114570766A (zh) * | 2022-03-15 | 2022-06-03 | 山西云时代太钢信息自动化技术有限公司 | 一种精轧机实时压下调节装置及控制方法 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0576915A (ja) * | 1991-03-28 | 1993-03-30 | Nippon Steel Corp | 圧延機のロールギヤツプ設定方法 |
| JPH06154832A (ja) | 1992-11-16 | 1994-06-03 | Nippon Steel Corp | ペアクロス圧延における自動板厚制御方法 |
| JPH10263656A (ja) | 1997-03-24 | 1998-10-06 | Nippon Steel Corp | 板圧延方法および板圧延機 |
| JPH1147814A (ja) * | 1997-07-30 | 1999-02-23 | Kawasaki Steel Corp | 鋼板の蛇行制御方法 |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58218302A (ja) * | 1982-06-12 | 1983-12-19 | Nippon Steel Corp | ロ−ルクロス圧延方法及び装置 |
| JPS59144511A (ja) * | 1983-02-07 | 1984-08-18 | Mitsubishi Heavy Ind Ltd | 圧延機の板厚制御方法 |
| WO1994011129A1 (fr) * | 1992-11-10 | 1994-05-26 | Nippon Steel Corporation | Systeme de commande de laminage inverse pour train de laminage croise a cage quarto |
-
2001
- 2001-10-19 JP JP2001321819A patent/JP3863751B2/ja not_active Expired - Fee Related
- 2001-11-16 DE DE60135777T patent/DE60135777D1/de not_active Expired - Lifetime
- 2001-11-16 WO PCT/JP2001/010064 patent/WO2002040188A1/ja not_active Ceased
- 2001-11-16 KR KR10-2003-7006662A patent/KR100534499B1/ko not_active Expired - Lifetime
- 2001-11-16 CN CNB018191304A patent/CN1229191C/zh not_active Expired - Lifetime
- 2001-11-16 AU AU2002215224A patent/AU2002215224A1/en not_active Abandoned
- 2001-11-16 EP EP01983817A patent/EP1344582B1/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0576915A (ja) * | 1991-03-28 | 1993-03-30 | Nippon Steel Corp | 圧延機のロールギヤツプ設定方法 |
| JPH06154832A (ja) | 1992-11-16 | 1994-06-03 | Nippon Steel Corp | ペアクロス圧延における自動板厚制御方法 |
| JPH10263656A (ja) | 1997-03-24 | 1998-10-06 | Nippon Steel Corp | 板圧延方法および板圧延機 |
| JPH1147814A (ja) * | 1997-07-30 | 1999-02-23 | Kawasaki Steel Corp | 鋼板の蛇行制御方法 |
Non-Patent Citations (1)
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Also Published As
| Publication number | Publication date |
|---|---|
| CN1229191C (zh) | 2005-11-30 |
| AU2002215224A1 (en) | 2002-05-27 |
| EP1344582A4 (en) | 2006-04-12 |
| DE60135777D1 (de) | 2008-10-23 |
| EP1344582A1 (en) | 2003-09-17 |
| JP2002210512A (ja) | 2002-07-30 |
| KR100534499B1 (ko) | 2005-12-08 |
| KR20040014413A (ko) | 2004-02-14 |
| JP3863751B2 (ja) | 2006-12-27 |
| EP1344582B1 (en) | 2008-09-10 |
| CN1494465A (zh) | 2004-05-05 |
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