CN115591948B - Method for improving control precision of section size of ESP strip steel - Google Patents
Method for improving control precision of section size of ESP strip steel Download PDFInfo
- Publication number
- CN115591948B CN115591948B CN202211254566.8A CN202211254566A CN115591948B CN 115591948 B CN115591948 B CN 115591948B CN 202211254566 A CN202211254566 A CN 202211254566A CN 115591948 B CN115591948 B CN 115591948B
- Authority
- CN
- China
- Prior art keywords
- roller
- cone section
- height
- rolling
- lower roller
- 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.)
- Active
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000005096 rolling process Methods 0.000 claims abstract description 50
- 238000005299 abrasion Methods 0.000 claims abstract description 35
- 238000005266 casting Methods 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 20
- 230000006698 induction Effects 0.000 claims description 16
- 238000009749 continuous casting Methods 0.000 claims description 8
- 230000007547 defect Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000002708 enhancing effect Effects 0.000 abstract description 2
- 230000005465 channeling Effects 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
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
- B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
- B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
-
- 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
-
- 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
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- 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
- B21B38/12—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll camber
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
The method for improving the control precision of the section size of the ESP strip steel comprises a frame body and is characterized in that: the frame body is equipped with the upper roller A and the lower roller B that are used for rough rolling or finish rolling casting blank to set up in pairs, includes following control step: (1) Setting the initial cone section heights of an initial upper roller A and a lower roller B as A, and setting the cone section length as L; the cone section heights A of the initial upper roller A and the initial lower roller B are the same in value; (2) measuring the abrasion loss of the upper roller and the lower roller: the wear amounts of the wear sensor and the wear sensor are respectively delta r1 and delta r2; roll run-out Δs=wear Δr/cone height a, Δr=Δr1=Δr2; let the cone height A2 guarantee that the size satisfies the formula a2=a1×Δr2/Δr1. The problems of plate shape defects such as strip steel wave shape, rib lifting and fold at the later stage in the rolling process are solved, the number of the inner diameter of single casting rolling is prolonged, and the effect of reducing the cost and enhancing the efficiency is remarkable.
Description
Technical Field
The invention discloses a method for improving the control precision of the section size of ESP strip steel.
Background
The finish rolling working roller of the ESP endless rolling production line is designed as a conical roller, the middle part of the roller surface of the roller is inwards sunken, and one end of the roller is of a conical table structure with thick inside and thin outside; the other end of the roller is cylindrical; the upper roller and the lower roller have the same roller shape and opposite directions.
In the rolling process, the wear of the roller is compensated by the roller shifting, and the roller shifting step sizes of the upper roller and the lower roller are the same. Roll run-out = wear/cone height. See fig. 1. However, the temperature difference of the upper surface and the lower surface of the strip steel and the influence of the loopers on the wrap angle of the upper working roll during rolling inevitably lead to inconsistent wear of the upper roll and the lower roll. Therefore, along with the extension of the rolling mileage of single casting, the upper roller and the lower roller can not simultaneously meet the requirements of roller channeling and abrasion matching, the difference gradually reduces the control precision of the section size of the strip steel in the middle and later stages along with the extension of the rolling mileage, and the strip defect problems such as strip steel wave shape, rib lifting, fold and the like are easy to occur.
The search document, patent number CN106825058A discloses a method for an ESP strip steel section size channeling strategy, according to the formula H=A-B, the length of a supporting roller is equal to-C, the channeling coefficient is equal to C, wherein H represents a local high point of the strip steel section, A is a coefficient, and 158; b is a coefficient of 0.13; c is a coefficient of 0.5; then, presetting local high points of the section of the strip steel, reversely calculating the length of the supporting roller and the roller shifting coefficient, and adjusting the length and the roller shifting coefficient, thereby realizing the control of the section size of the strip steel with thin specification. The formula does not consider the problem of inconsistent wear of the upper roller and the lower roller, is unfavorable for the shape control in the middle and later stages, and is easy to cause shape defects.
Patent number CN201620572000.3 discloses a long kilometer rolling roller for an ESP production line, wherein the middle part of the roller surface of the roller is inwards sunken, one end of the roller is of a frustum structure with thick inner part and thin outer part, so that the roller surface forms a compensation slope; the other end of the roller is cylindrical; the upper roller and the lower roller have the same roller shape and opposite directions. The roll shape design also does not consider the problem of inconsistent upper and lower roll wear caused by working conditions.
The patent number CN109772897A discloses a setting control method for improving the full-length convexity and wedge precision of hot continuous rolling strip steel, by counting the setting range of PC angles when the convexity and wedge of the historically produced strip steel are good, the setting upper limit of the PC angles when the wedge is good is determined, according to the counting result, when the strip steel is set in the follow-up rolling process, the control range of the PC angles and the roller bending force is reasonably distributed, the counted upper limit of the PC angles is used as the setting upper limit of the PC angles, after the setting of the PC angles is limited, the part with insufficient convexity control capability is compensated by the roller bending force, and the precision of the wedge control of a finish rolling outlet is ensured while the convexity control precision is met. The roll shape design of the scheme is inconsistent with the ESP, no conventional hot continuous rolling production line exists, and the process flow is different.
In addition, in the rolling production process of the ESP production line thin materials, the problem of the reverse warping of the side parts of the intermediate blank and the side parts of the finished product section often occurs, and the situation of inconsistent abrasion of the upper roller and the lower roller occurs in the frame selection part is shown in the accompanying figure 3 and the accompanying figure 4. By adopting measures of correcting the roll shape of the supporting roll and the working roll, continuously optimizing roll shifting compensation, adjusting load distribution, bending force and the like, obvious improvement effects are not obtained all the time, the root of the problem is not found in the opposite direction all the time, and the problem of edge tilting also affects the control precision of the section size of the strip steel.
Therefore, the method for improving the control precision of the section size of the ESP hot rolled strip steel is studied, the problem of strip steel shape defect in the later period of the rolling process is solved, the kilometer of casting time is prolonged, and the method is a key core problem to be solved urgently in ESP cost reduction and synergy.
Disclosure of Invention
In order to solve the problems, the invention discloses a method for improving the control precision of the section size of ESP strip steel, which comprises the steps of forming stable working conditions by controlling technological parameters such as continuous casting drawing speed, rough rolling inlet temperature, induction heating outlet temperature and the like, thereby providing preconditions for forming stable abrasion rules and solidifying roll shape design; controlling the high points of the edge part of the intermediate blank and the edge part of the finished product by using a rough rolling front edge part heater and improving the temperature of the edge part of an induction heating outlet; the method comprises the steps of configuring cone section heights of different sizes according to the abrasion ratio of an upper roller and a lower roller of a conical roller, ensuring that the concave sections and the cone section roller shapes of the upper roller and the lower roller can always keep ideal roller shape curves.
The technical scheme of the invention is as follows:
the method for improving the control precision of the section size of the ESP strip steel comprises a frame body and is characterized in that: the frame body is equipped with the roll that is used for rough rolling or finish rolling district to set up in pairs, the roll includes that the roll that sets up in pairs comprises upper roller A and lower roller B, includes following control step:
(1) Setting the initial cone section heights of an initial upper roller A and a lower roller B as A, and setting the cone section length as L;
the cone section heights A of the initial upper roller A and the initial lower roller B are the same in value;
(2) Measuring the abrasion loss of the upper roller and the lower roller:
measuring the abrasion loss of the upper roller A and the lower roller B respectively as delta r1 and delta r2, and comparing the abrasion loss of the upper roller A and the lower roller B;
when Δr1=Δr2, compensating roll wear according to the adjustment of the roll shifting amount;
Roll run-out Δs=wear Δr/cone height a, Δr=Δr1=Δr2;
When Δr1 is not equal to Δr2, the position of the roller with uniform axial abrasion loss is kept unchanged, and the height of the radial cone section of the roller with large abrasion loss is adjusted:
setting the height of the cone section of the roller with the unchanged holding position as A1; the height of the cone section of the adjusted corresponding roller is A2;
Ensuring that the height A2 of the cone section meets the formula A2=A1, wherein Δr2/Δr1 is the abrasion of a roller with the height of the cone section required to be adjusted, and Δr1 is the abrasion of the roller without the height of the cone section required to be adjusted.
Specifically, the height A of the cone section is 0.5-1.8mm, the roll shifting amount is inversely proportional to the height of the cone section, and the properly increased height of the cone section can reduce the roll shifting amount of single steel, so that the capacity of rolling for a long kilometer for several times is improved.
Specifically, an edge heater is arranged in front of the rough rolling area, the power of the edge heater is set to be 200-800KW, and the width of the edge heater, which covers the edge of the casting blank, is 1.6% -12%.
Specifically, an induction heating furnace is arranged in front of the finish rolling area, the induction heating furnace is a transverse magnetic induction heating furnace, the outlet temperature is set to 1080-1180 ℃, and the width of the edge of the blank covered by the heating furnace module is 0.4% -3.2%.
Specifically, the thickness of the casting blank is 90-110mm, the edge heater is used in a continuous casting step, a drawing speed value is set in the continuous casting step, and the drawing speed value of continuous casting is set to be 4.8-5.5m/min.
Specifically, the temperature of the rough rolling inlet is 980-1080 ℃, and the temperature of the induction heating furnace outlet is 1080-1180 ℃.
Compared with the prior art, the invention has the following beneficial effects:
(1) Compared with the prior art, the invention discloses a method for improving the control precision of the cross section size of an ESP hot rolled strip steel, which improves the control precision of the cross section size of an ESP finished product, solves the plate-shaped defect problems of strip steel wave shape, rib lifting, fold and the like in the later stage of rolling process, prolongs the number of rolling mileage of single casting time and has remarkable effect of reducing cost and enhancing efficiency.
(2) In the invention, the increased cone height can reduce the roll shifting compensation amount of single steel, thereby improving the capacity of rolling for a long kilometer number of times.
Drawings
FIG. 1 is a schematic view of the structure of an ESP hot rolling roll;
FIG. 2 is a schematic view of roll wear;
FIG. 3 is a schematic diagram of the side reverse warping of the finished product section;
FIG. 4 is a schematic view of the side of the intermediate blank and the side of the section of the finished product in a reverse warp state;
FIG. 5 is a schematic diagram of the case of example Δr1 > Δr2;
FIG. 6 is a schematic diagram of the case of example Δr1 < Δr2;
FIG. 7 is a schematic view showing that the upper and lower rolls are uniformly worn after the adjustment;
FIG. 8 is a schematic view of an edge heater covered blank according to the present invention;
FIG. 9 is a schematic view of a lateral magnetic induction heating furnace covering the edge of a casting blank according to the present invention;
In the figure: 10-upper roller A, 20-lower roller B, 30-edge heater, 40-strip steel.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1 and 8, a method for improving the control precision of the section size of an ESP strip steel is disclosed, wherein the production process flow comprises qualified molten steel, continuous casting, an edge heater 30, rough rolling, transverse magnetic induction heating, finish rolling, layer cooling, high-speed flying shears and coiling.
The concrete structure includes the frame body, the frame body is equipped with the roller that is used for rolling regional slab of rough rolling or finish rolling to set up in pairs, the roller includes the upper roller A10 and the lower roller B20 that set up in pairs, includes following control step:
(1) Setting the initial cone section heights of an initial upper roller A and a lower roller B as M, wherein the cone section length is L, and the cone section height A=M/L;
the cone section heights A of the initial upper roller A and the initial lower roller B are the same in value;
(2) Measuring the abrasion loss of the upper roller and the lower roller:
measuring the abrasion loss of the upper roller A and the lower roller B respectively as delta r1 and delta r2, and comparing the abrasion loss of the upper roller A and the lower roller B;
when Δr1=Δr2, compensating roll wear according to the adjustment of the roll shifting amount;
Roll run-out Δs=wear Δr/cone height a, Δr=Δr1=Δr2;
When Δr1 is not equal to Δr2, the position of the roller with uniform axial abrasion loss is kept unchanged, and the height of the radial cone section of the roller with large abrasion loss is adjusted:
setting the height of the cone section of the roller with the unchanged holding position as A1; the height of the cone section of the adjusted corresponding roller is A2;
ensuring that the height A2 of the cone section meets the formula A2=A1, and Δr2/Δr1, wherein Δr2 is the abrasion of a roller with the height of the cone section to be adjusted, and Δr1 is the abrasion of the roller without the height of the cone section to be adjusted.
The wear size was measured in the following manner: (working roll diameter before machine-up) — (working roll diameter after machine-down). The size of the roll diameter is measured by a measuring arm of a grinding machine, and the center dimension of the concave section of the roll shape of the roll is taken as the reference.
Referring to FIG. 1, in specific operation, the thickness of a casting blank is 90-110mm, the pulling speed is 4.8-5.5m/min, the rough rolling inlet temperature is 980-1080 ℃, and the outlet temperature of an induction heating furnace is 1080-1180 ℃. The method provides preconditions for forming stable working conditions, and further for forming stable wear rules and solidifying roll shape design.
And the heights of cone sections of the upper roller A10 and the lower roller B20 of finish rolling are respectively A1 and A2, A1=A2 in the initial state, the channeling directions of the upper roller and the lower roller are opposite, and the channeling amounts of single steel are the same and are S0. The upper roller wear of the finish rolling working roller is delta r1, and the lower roller wear of the finish rolling working roller is delta r2.
Ideally, if Δr1=Δr2, upper and lower rolls of the same cone height, according to the logic of roll-slip compensation: roll shift s=wear Δr/cone height a. The roller wear can be effectively compensated by adjusting the roller shifting amount, so that the roller shifting and the up and down wear matching performance is good.
The wear of the roller is compensated by transversely moving the working roller by a certain distance (channeling), so that the roller shape in the center of the roller body is ensured to always keep a uniform wear state and a roller shape similar to the initial roller shape.
Roll shifting adjustment amount: roll run-out Δs=wear Δr/cone height a.
However, in actual production, because the upper roller and the lower roller are not worn uniformly, only one roller of the upper roller or the lower roller can be worn and matched with the channeling roller.
The above roll shifting S0 is exemplified by good matching with the wear Δr1 (the wear after the wear is uniform and the wear is relatively uniform in the state of being close to the original state), and analysis is performed.
(1)Δr1＞Δr2
The lower roller will wear in advance at the joint of the concave section and the cone section, and when the joint continues to move towards the rolling center line, the abrasion of the section will be larger than that of the adjacent position, so that the lateral abrasion of the roller is uneven, as shown in figure 5 (the left side of figure 5 is the upper roller, the right side is the lower roller, and the frame selection part, namely the lower roller, is worn in advance to generate uneven abrasion)
(2)Δr1＜Δr2
The lower roller has deeper abrasion of concave section, the cone angle and the arc of the concave section are in a box-shaped hole, and the lower roller is in a cat ear shape when serious, as shown in figure 6. (the left side of FIG. 6 is the upper roller, the right side is the lower roller, the frame selection part is the lower roller with deeper abrasion, and the lower roller is cat-ear-shaped.)
Therefore, in order to compensate the abrasion difference of the upper roller and the lower roller, the height of the cone section of the roller needs to be adjusted.
And when Δr1 is larger than Δr2 or Δr1 is smaller than Δr2, the height of the object cone of the upper roller A1 is kept unchanged by taking the upper roller with good roller channeling and abrasion matching as a reference, and the object cone height A2=A1×Δr2/Δr1 of the lower roller is adjusted.
The lower roll shifting and abrasion matching performance is good, and the upper roll matching performance is poor, so that the method is opposite to the upper method.
After the adjustment, the upper roller and the lower roller are uniformly worn. See fig. 7.
Referring to fig. 7, during specific operation, the temperature of the edge of the casting blank may be low, and the deformation reduction of the edge is large under the action of the concave section of the roll body, so that the rolling force is increased, the roll is flattened and deformed greatly, and the edge is tilted reversely. The rolling is carried out under the condition for a long time, the abrasion of the edge is increased, and the edge warping of the section is further increased;
The edge heater 30 can be put into use, the power of the edge heater 30 is set to be 200-500KW, and the edge heater covers the edge width by 1.6% -12%, so that the edge temperature is increased, the edge temperature is obviously increased by 100-150 ℃ after the edge heater is put into use, the deformation resistance of the edge metal and the flattening deformation of the roller are reduced, the longitudinal fluidity of the metal is enhanced, the edge profile of the intermediate blank becomes smooth, and the improvement effect is obvious.
Referring to fig. 8, during specific operation, the problem of edge curling of the finished product caused by large edge flattening amount of the roller due to large edge heat loss and large edge deformation in the process of running and finish rolling of the process channel may occur, and meanwhile, because the edge coverage amount is too small, the magnetic flux of the edge of the intermediate blank is reduced, the corresponding edge temperature rise is smaller, and the due heating effect cannot be achieved. However, the excessive coverage of the edge part can cause the remarkable increase of magnetic flux, so that the problem of pressing in of iron scales caused by excessive temperature of the edge part, melting of the iron scales and incomplete descaling is caused;
At the moment, the covering quantity of the edge is compensated and adjusted, an induction heating furnace can be used, the induction heating furnace is a transverse magnetic induction heating furnace, the outlet temperature is set to 1080-1180 ℃, the width of the edge of the middle blank covered by the heating furnace module is 0.4-3.2%, the accuracy of the section size is improved, the problem of plate defects such as the waveform, the rib and the fold of the strip steel 40 in the later stage of the rolling process is solved, the rolling mileage of a single casting time is prolonged, and the cost reduction and synergy effects are remarkable.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but the present invention is described in detail with reference to the foregoing embodiments, and it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for part of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present embodiment are included in the protection scope of the present invention.
Claims (2)
1. The method for improving the control precision of the section size of the ESP strip steel comprises a frame body and is characterized in that: the frame body is equipped with the roller that sets up in pairs for rolling the slab in rough rolling or finish rolling region, the roller comprises upper roller A and lower roller B, includes following control step:
(1) Setting the initial cone section heights of an initial upper roller A and a lower roller B as A, and setting the cone section length as L;
the cone section heights A of the initial upper roller A and the initial lower roller B are the same in value;
(2) Measuring the abrasion loss of the upper roller and the lower roller:
measuring the abrasion loss of the upper roller A and the lower roller B respectively as delta r1 and delta r2, and comparing the abrasion loss of the upper roller A and the lower roller B;
when Δr1=Δr2, compensating roll wear according to the adjustment of the roll shifting amount;
Roll run-out Δs=wear Δr/cone height a, Δr=Δr1=Δr2;
When Δr1 is not equal to Δr2, the position of the roller with uniform axial abrasion loss is kept unchanged, and the height of the radial cone section of the roller with large abrasion loss is adjusted:
setting the height of the cone section of the roller with the unchanged holding position as A1; the height of the cone section of the adjusted corresponding roller is A2;
ensuring that the height A2 of the cone section meets the formula A2=A1, wherein Δr2/Δr1 is the abrasion of a roller with the height of the cone section required to be adjusted, and Δr1 is the abrasion of the roller without the height of the cone section required to be adjusted;
An edge heater is arranged in front of the rough rolling area for rolling, the power of the edge heater is set to be 200-800KW, and the width of the edge heater, which covers the edge of the casting blank, is 1.6% -12%;
An induction heating furnace is arranged in front of the rolling finish rolling area, the induction heating furnace is a transverse magnetic induction heating furnace, the outlet temperature is set to 1080-1180 ℃, and the width of the edge of the heating furnace module covered edge blank is 0.4% -3.2%;
The thickness of the casting blank is 90-110mm, the edge heater is used in a continuous casting step, a drawing speed value is set in the continuous casting step, and the drawing speed value of continuous casting is set to be 4.8-5.5m/min;
the temperature of the rough rolling inlet is 980-1080 ℃, and the temperature of the induction heating furnace outlet is 1080-1180 ℃.
2. The method for improving the control precision of the section size of the ESP strip steel according to claim 1, wherein the height A of the cone section is 0.5-1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211254566.8A CN115591948B (en) | 2022-10-13 | 2022-10-13 | Method for improving control precision of section size of ESP strip steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211254566.8A CN115591948B (en) | 2022-10-13 | 2022-10-13 | Method for improving control precision of section size of ESP strip steel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115591948A CN115591948A (en) | 2023-01-13 |
| CN115591948B true CN115591948B (en) | 2024-05-14 |
Family
ID=84847341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211254566.8A Active CN115591948B (en) | 2022-10-13 | 2022-10-13 | Method for improving control precision of section size of ESP strip steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115591948B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5368662A (en) * | 1976-12-02 | 1978-06-19 | Sumitomo Metal Ind | Rolling method |
| US4776192A (en) * | 1985-10-21 | 1988-10-11 | Nippon Steel Corporation | Controlling the profile of sheet during rolling thereof |
| JPH08332510A (en) * | 1995-06-06 | 1996-12-17 | Sumitomo Metal Ind Ltd | Method for rolling steel sheet |
| RU2152277C1 (en) * | 1998-01-06 | 2000-07-10 | Акционерное общество "Кузнецкий металлургический комбинат" | Steel sheet rolling method |
| CN1836801A (en) * | 2005-03-25 | 2006-09-27 | 鞍钢集团新钢铁有限责任公司 | Worker roller sweep both paying attention to board type control and free regulation rolling |
| CN110087787A (en) * | 2016-06-15 | 2019-08-02 | 阿维迪钢铁工程股份公司 | The mill rolls that can roll high milimeter number for ESP production line |
| CN110883102A (en) * | 2019-11-29 | 2020-03-17 | 山东交通学院 | Working roll shifting method for hot-rolled strip steel under same-width rolling condition |
| CN111050935A (en) * | 2017-10-31 | 2020-04-21 | 东芝三菱电机产业系统株式会社 | Roll grinding loss dispersion method of rolling mill frame and rolling system |
| CN111482456A (en) * | 2019-01-28 | 2020-08-04 | 首要金属科技德国有限责任公司 | Locally varying the roll gap in the strip edge region of a rolled strip |
| CN112588838A (en) * | 2020-11-10 | 2021-04-02 | 北京科技大学 | Asymmetric self-compensation rolling working roll suitable for short-stroke roll shifting and implementation method thereof |
| CN113263058A (en) * | 2021-04-23 | 2021-08-17 | 北京科技大学 | Roll shifting control method of hot continuous rolling finishing mill group considering hot roll shape |
| CN113316491A (en) * | 2019-01-28 | 2021-08-27 | 首要金属科技德国有限责任公司 | Changing the effective contour of the working surfaces of the working rolls during the hot rolling of a rolling stock in a rolling stand to a rolled strip |
| CN114769325A (en) * | 2022-04-26 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Control method for roll shifting of hot continuous rolling CVC working roll |
-
2022
- 2022-10-13 CN CN202211254566.8A patent/CN115591948B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5368662A (en) * | 1976-12-02 | 1978-06-19 | Sumitomo Metal Ind | Rolling method |
| US4776192A (en) * | 1985-10-21 | 1988-10-11 | Nippon Steel Corporation | Controlling the profile of sheet during rolling thereof |
| JPH08332510A (en) * | 1995-06-06 | 1996-12-17 | Sumitomo Metal Ind Ltd | Method for rolling steel sheet |
| RU2152277C1 (en) * | 1998-01-06 | 2000-07-10 | Акционерное общество "Кузнецкий металлургический комбинат" | Steel sheet rolling method |
| CN1836801A (en) * | 2005-03-25 | 2006-09-27 | 鞍钢集团新钢铁有限责任公司 | Worker roller sweep both paying attention to board type control and free regulation rolling |
| CN110087787A (en) * | 2016-06-15 | 2019-08-02 | 阿维迪钢铁工程股份公司 | The mill rolls that can roll high milimeter number for ESP production line |
| CN111050935A (en) * | 2017-10-31 | 2020-04-21 | 东芝三菱电机产业系统株式会社 | Roll grinding loss dispersion method of rolling mill frame and rolling system |
| CN113316491A (en) * | 2019-01-28 | 2021-08-27 | 首要金属科技德国有限责任公司 | Changing the effective contour of the working surfaces of the working rolls during the hot rolling of a rolling stock in a rolling stand to a rolled strip |
| CN111482456A (en) * | 2019-01-28 | 2020-08-04 | 首要金属科技德国有限责任公司 | Locally varying the roll gap in the strip edge region of a rolled strip |
| CN110883102A (en) * | 2019-11-29 | 2020-03-17 | 山东交通学院 | Working roll shifting method for hot-rolled strip steel under same-width rolling condition |
| CN112588838A (en) * | 2020-11-10 | 2021-04-02 | 北京科技大学 | Asymmetric self-compensation rolling working roll suitable for short-stroke roll shifting and implementation method thereof |
| CN113263058A (en) * | 2021-04-23 | 2021-08-17 | 北京科技大学 | Roll shifting control method of hot continuous rolling finishing mill group considering hot roll shape |
| CN114769325A (en) * | 2022-04-26 | 2022-07-22 | 马鞍山钢铁股份有限公司 | Control method for roll shifting of hot continuous rolling CVC working roll |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115591948A (en) | 2023-01-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2818259B1 (en) | Pre-control method of head and tail shapes of continuous casting slab for reducing the removed amount from the head and tail of hot-rolled intermediate slab | |
| US7913531B2 (en) | Roll profile for both shape control and free ruled rolling | |
| CN109261717B (en) | Rolling method for improving edge quality of product in cold-rolled silicon steel production | |
| CN102451838A (en) | Method for overcoming camber defect in hot rolling process of steel plate | |
| UA74596C2 (en) | Method and device for producing steel strips and sheets | |
| US9833823B2 (en) | Method for producing a metal strip | |
| CN111957752B (en) | Production method for eliminating bright band and additional wave shape defects on surface of hot-rolled low-carbon mild steel | |
| CN107096795A (en) | A kind of manufacture method for reducing edge defects of hot rolled strip steel | |
| CN103008361B (en) | Method for controlling bending of steel plate head | |
| CN115591948B (en) | Method for improving control precision of section size of ESP strip steel | |
| CN110860561A (en) | Method for coordinately controlling straight section of electrical steel through short-process cold rolling and hot rolling | |
| CN112916614B (en) | Flat rolling method for 7-8mm steel plate with limited length | |
| CN112588822B (en) | Hot continuous rolling mill model and plate shape control method | |
| CA1038662A (en) | Method for controlling flatness of metal sheet in rolling | |
| CN112958633A (en) | Incoming material camber-based fine rolling strip steel head pre-swing leveling control method | |
| CN109550793A (en) | A kind of method of high-chrome super-purity ferrite stainless steel hot-rolling sticking defect in reduction | |
| JPS5964103A (en) | Hot rolling method | |
| CN211027521U (en) | Back-up roll capable of adapting to width change of strip steel | |
| JPH08117829A (en) | Cold rolling method for steel sheet | |
| JP3175920B2 (en) | Method for producing stainless steel strip with less seam flaws | |
| CN107812786A (en) | A kind of hot rolling technology for being used to produce the electrical sheet without metal flow accumulation defect | |
| KR100657564B1 (en) | Method for reducing edge drop of hot rolling using taper roll | |
| CN112536322B (en) | Rolling method of stainless steel with asymmetric surface | |
| KR20190103164A (en) | Method and apparatus for rolling metal strip | |
| CN106825058A (en) | ESP sheet billet continuous casting and rolling production lines control strip section size shifting strategy method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |