CN108714628A - A kind of control method of belt plate shape - Google Patents
A kind of control method of belt plate shape Download PDFInfo
- Publication number
- CN108714628A CN108714628A CN201810375109.1A CN201810375109A CN108714628A CN 108714628 A CN108714628 A CN 108714628A CN 201810375109 A CN201810375109 A CN 201810375109A CN 108714628 A CN108714628 A CN 108714628A
- Authority
- CN
- China
- Prior art keywords
- plate shape
- control method
- belt plate
- strip
- straightener
- 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.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0085—Joining ends of material to continuous strip, bar or sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0064—Uncoiling the rolled product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
The present invention provides a kind of control methods of belt plate shape, include the following steps：(1) strip is subjected to feeding, unreel and cutting operation successively；(2) after welding steel plate, it is sent into entry loop；(3) it will wait for that smooth steel plate is aligned using straightener；(4) steel plate after aligning is carried out using dry flat machine smooth；(5) strip after will be smooth carries out bundling, batches successively.In the previous process of planisher, straightener is set, improve the plate shape of strip, control the shape wave defect of strip, improve the qualification rate of belt plate shape, meet plate shape requirement of the user to very thin hot rolled plate, debugs initial production hot rolled coil Q235B steel, shape wave oven improvement 9.8%, by process optimization, it is reduced to 1.2% or less.
Description
Technical field
The invention belongs to technical field of steel strip production, and in particular to a kind of control method of belt plate shape.
Background technology
As steel rolling process technology is constantly progressive, the performance forward direction cold-reduced sheet of hot rolled sheet is close, make " with hot Dai Leng "
Technically it is achieved, and the exploitation of ESP production technologies, realize the production of the very thin hot-strip product of domestic hot rolling.
But in terms of ESP production technologies and products characteristics, very thin Flatness of Hot Rolled Strip is susceptible to problems with：
1, easily there is wave type defect in belt steel surface；
2, easily there is cross breaks defect in belt steel surface；
3, belt plate shape is not easy to control.
The above problem seriously affects degree of recognition of the user to the product of ESP.
Therefore, to improve hot rolling strip in razor-thin steel plate shape problem, the product quality of ESP can be promoted, while it is competing to promote market
Strive power and production efficiency.
Invention content
It is an object of the invention to solve above-mentioned problem existing in the prior art, a kind of controlling party of belt plate shape is provided
Method is arranged straightener in the previous process of planisher, improves the plate shape of strip, control the shape wave defect of strip, improve band steel plate
The qualification rate of shape meets plate shape requirement of the user to very thin hot rolled plate, debugs initial production hot rolled coil Q235B steel, shape wave changes
Sentence rate 9.8%, by process optimization, is reduced to 1.2% or less.
The present invention is achieved by the following technical solutions：
A kind of control method of belt plate shape, includes the following steps：
(1) strip is subjected to feeding, unreel and cutting operation successively；
(2) after welding steel plate, it is sent into entry loop；
(3) it will wait for that smooth steel plate is aligned using straightener；
(4) steel plate after aligning is carried out using dry flat machine smooth；
(5) strip after will be smooth carries out bundling, batches successively.
17 roller straighteners are set in the previous process of planisher, the plate shape of strip can be improved.
The straightener uses 17 roller straighteners.
Entrance intrusion △ L1≤0.8mm of the straightener, outlet intrusion △ L2≤0.5mm of straightener.It adjusts
Whole entrance intrusion and outlet intrusion can avoid belt steel surface from cross breaks defect occur in setting range, be conducive to band steel plate
The control of shape.
The roll shape of the working roll of the planisher is recessed roll shape.Relative to plain-barreled roll and convex roll shape, can be had using recessed roll shape
The plate shape of the improvement strip of effect.
The roller curve of the working roll is -0.04mm.
The surface roughness of the working roll is：0.34~0.45um.
Roller diameter difference≤0.5mm of the working roll.
The diameter D of the working roll is：500mm~550mm.
The planisher is stablized using leveling rolling force control mode, roll-force, and elongation percentage fluctuation is conducive to control strip
Plate shape.
The roll-force of the planisher is：1200~2500KN.
Compared with prior art, the beneficial effects of the invention are as follows：
1, the present invention is a kind of control method of belt plate shape, and straightener is arranged in the previous process of planisher, improves band
The plate shape of steel controls the shape wave defect of strip, improves the qualification rate of belt plate shape, meets user and is wanted to the plate shape of very thin hot rolled plate
It asks, debugs initial production hot rolled coil Q235B steel, shape wave oven improvement 9.8% is reduced to 1.2% or less by process optimization.
2, the present invention is a kind of control method of belt plate shape, and adjustment entrance intrusion and outlet intrusion are in setting model
It encloses, belt steel surface can be avoided cross breaks defect occur, be conducive to the control of belt plate shape.
3, the present invention is a kind of control method of belt plate shape, and the working roller of planisher is recessed roll shape, and coordinates 17
Roller straightener technique avoids because the planisher working roll roller diameter is big, solves the problems, such as that belt plate shape is difficult to control, relatively
In plain-barreled roll and convex roll shape, it can effectively improve the plate shape of strip using recessed roll shape.
4, the present invention is a kind of control method of belt plate shape, and planisher uses Constant dvaught pressure control pattern, roll-force steady
Fixed, elongation percentage fluctuation is conducive to control belt plate shape, and roll-force is adjusted between 1200KN~2500KN, can either ensure band
Required roll-force when steel is smooth, and roll-force can be avoided to cross ambassador's strip and generate new defect.
5, the present invention is a kind of control method of belt plate shape, the roller curve of the recessed roll shape of the working roll of flattening device
For -0.04mm, the surface roughness of working roll has advanced optimized the control of belt plate shape between 0.34um~0.45um
System, improves the plate shape of strip.
Description of the drawings
Fig. 1 is the process flow diagram of the present invention.
Specific implementation mode
Present invention is further described in detail below in conjunction with the accompanying drawings：
As shown in Figure 1, a kind of control method of belt plate shape, includes the following steps：
(1) strip is subjected to feeding, unreel and cutting operation successively；
(2) after welding steel plate, it is sent into entry loop；Entry loop stores strip, ensures the continuous production of unit；
(3) it will wait for that smooth steel plate is aligned using straightener；The straightener uses 17 roller straighteners, in planisher
17 roller straighteners are arranged in previous process, can improve the plate shape of strip.Entrance intrusion △ L1≤0.8mm of the straightener,
Outlet intrusion △ L2≤0.5mm of straightener.Entrance intrusion and outlet intrusion are adjusted in setting range, can be avoided
There is cross breaks defect in belt steel surface, is conducive to the control of belt plate shape.
(4) steel plate after aligning is carried out using dry flat machine smooth；The roll shape of the working roll of the planisher is recessed roller
Type.Relative to plain-barreled roll and convex roll shape, it can effectively improve the plate shape of strip using recessed roll shape.The roller curve of the working roll
For -0.04mm.The surface roughness of the working roll is：0.34um~0.45um, the surface roughness of working roll in the application
For 0.40um.Roller diameter difference≤0.5mm of the working roll.The control for having advanced optimized belt plate shape improves the plate of strip
The diameter D of shape, the working roll is：500mm~550mm, in the production technology, the roller diameter of working roll is big, relative to small roller diameter
Planisher, Strip Shape Control difficulty is big, optimizes and adjusts by using the working roll of recessed roll shape, while to 17 roller straighteners
Examination, makes the plate shape of strip be improved.The planisher uses Constant dvaught pressure control pattern, roll-force to stablize, elongation percentage fluctuation,
Be conducive to control belt plate shape.The roll-force of the planisher is：1200KN~2500KN, the roll-force in the application use
1500KN。
(5) strip after will be smooth carries out bundling, batches successively.
Straightener is set in the previous process of planisher, improves the plate shape of strip, controls the wave type defect of strip, improve band
The qualification rate of steel plate shape meets plate shape requirement of the user to very thin hot rolled plate, debugs initial production hot rolled coil Q235B steel, wave
Shape oven improvement 9.8% is reduced to 1.2% or less by process optimization.
Above-mentioned technical proposal is one embodiment of the present invention, for those skilled in the art, at this
On the basis of disclosure of the invention application process and principle, it is easy to make various types of improvement or deformation, be not limited solely to this
Invent method described in above-mentioned specific implementation mode, therefore previously described mode is only preferred, and and without limitation
The meaning of property.
Claims (10)
1. a kind of control method of belt plate shape, which is characterized in that include the following steps：
(1) strip is subjected to feeding, unreel and cutting operation successively；
(2) after welding steel plate, it is sent into entry loop；
(3) it will wait for that smooth steel plate is aligned using straightener；
(4) steel plate after aligning is carried out using dry flat machine smooth；
(5) strip after will be smooth carries out bundling, batches successively.
2. a kind of control method of belt plate shape according to claim 1, which is characterized in that the straightener uses 17 rollers
Straightener.
3. a kind of control method of belt plate shape according to claim 1, which is characterized in that the entrance pressure of the straightener
Enter amount △ L1≤0.8mm, outlet intrusion △ L2≤0.5mm of straightener.
4. a kind of control method of belt plate shape according to claim 1, which is characterized in that the working roll of the planisher
Roll shape is recessed roll shape.
5. a kind of control method of belt plate shape according to claim 4, which is characterized in that the roll shape of the working roll is bent
Line is -0.04mm.
6. a kind of control method of belt plate shape according to claim 4, which is characterized in that the surface of the working roll is thick
Rugosity is：0.34~0.45um.
7. a kind of control method of belt plate shape according to claim 4, which is characterized in that the roller diameter of the working roll is poor
≤0.5mm。
8. a kind of control method of belt plate shape according to claim 4, which is characterized in that the diameter D of the working roll
For：500mm~550mm.
9. a kind of control method of belt plate shape according to claim 1, which is characterized in that the planisher is rolled using perseverance
Force control mode processed.
10. a kind of control method of belt plate shape according to claim 1, which is characterized in that the rolling of the planisher
Power is：1200~2500KN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375109.1A CN108714628A (en) | 2018-04-24 | 2018-04-24 | A kind of control method of belt plate shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375109.1A CN108714628A (en) | 2018-04-24 | 2018-04-24 | A kind of control method of belt plate shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108714628A true CN108714628A (en) | 2018-10-30 |
Family
ID=63899117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810375109.1A Pending CN108714628A (en) | 2018-04-24 | 2018-04-24 | A kind of control method of belt plate shape |
Country Status (1)
| Country | Link |
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| CN (1) | CN108714628A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346916A (en) * | 2020-03-19 | 2020-06-30 | 首钢京唐钢铁联合有限责任公司 | Strip steel production method for reducing cold and hard roll rib roll marks |
| CN113118783A (en) * | 2020-05-31 | 2021-07-16 | 日照宝华新材料有限公司 | Method for controlling low-carbon steel transverse folding defect with specification of 1.5-4 mm |
| CN113976624A (en) * | 2021-10-28 | 2022-01-28 | 攀钢集团攀枝花钢钒有限公司 | Method for controlling plate shape of hot continuous rolling titanium and titanium alloy strip coil |
| CN114011884A (en) * | 2021-10-19 | 2022-02-08 | 武汉钢铁有限公司 | Plate shape control method of cold-rolled wide plate |
| CN114210737A (en) * | 2021-11-02 | 2022-03-22 | 阳江宏旺实业有限公司 | Method for reducing plate type defects of dry type temper mill |
Citations (6)
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|---|---|---|---|---|
| JPH04270001A (en) * | 1991-02-26 | 1992-09-25 | Kawasaki Steel Corp | Method for improving shape of checkered plate |
| CN102626726A (en) * | 2012-04-13 | 2012-08-08 | 中冶南方工程技术有限公司 | Straightening and leveling process for hot-rolled high-strength steel |
| CN204135117U (en) * | 2014-07-16 | 2015-02-04 | 首钢京唐钢铁联合有限责任公司 | Roll shape configuration structure of hot rolling temper mill |
| CN105268746A (en) * | 2015-11-11 | 2016-01-27 | 北京首钢股份有限公司 | Leveling method for cross break defects on surface of hot-rolled and acid-pickled plate |
| CN206168943U (en) * | 2016-09-21 | 2017-05-17 | 中冶南方工程技术有限公司 | Continuous production unit |
| CN107838199A (en) * | 2017-12-11 | 2018-03-27 | 中冶南方工程技术有限公司 | High strength band steel leveling rectifys technique |
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2018
- 2018-04-24 CN CN201810375109.1A patent/CN108714628A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04270001A (en) * | 1991-02-26 | 1992-09-25 | Kawasaki Steel Corp | Method for improving shape of checkered plate |
| CN102626726A (en) * | 2012-04-13 | 2012-08-08 | 中冶南方工程技术有限公司 | Straightening and leveling process for hot-rolled high-strength steel |
| CN204135117U (en) * | 2014-07-16 | 2015-02-04 | 首钢京唐钢铁联合有限责任公司 | Roll shape configuration structure of hot rolling temper mill |
| CN105268746A (en) * | 2015-11-11 | 2016-01-27 | 北京首钢股份有限公司 | Leveling method for cross break defects on surface of hot-rolled and acid-pickled plate |
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| CN107838199A (en) * | 2017-12-11 | 2018-03-27 | 中冶南方工程技术有限公司 | High strength band steel leveling rectifys technique |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111346916A (en) * | 2020-03-19 | 2020-06-30 | 首钢京唐钢铁联合有限责任公司 | Strip steel production method for reducing cold and hard roll rib roll marks |
| CN111346916B (en) * | 2020-03-19 | 2022-03-18 | 首钢京唐钢铁联合有限责任公司 | Strip steel production method for reducing cold and hard roll rib roll marks |
| CN113118783A (en) * | 2020-05-31 | 2021-07-16 | 日照宝华新材料有限公司 | Method for controlling low-carbon steel transverse folding defect with specification of 1.5-4 mm |
| CN114011884A (en) * | 2021-10-19 | 2022-02-08 | 武汉钢铁有限公司 | Plate shape control method of cold-rolled wide plate |
| CN113976624A (en) * | 2021-10-28 | 2022-01-28 | 攀钢集团攀枝花钢钒有限公司 | Method for controlling plate shape of hot continuous rolling titanium and titanium alloy strip coil |
| CN113976624B (en) * | 2021-10-28 | 2023-11-21 | 攀钢集团攀枝花钢钒有限公司 | Plate shape control method for hot continuous rolling titanium and titanium alloy strip coil |
| CN114210737A (en) * | 2021-11-02 | 2022-03-22 | 阳江宏旺实业有限公司 | Method for reducing plate type defects of dry type temper mill |
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Legal Events
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181030 |
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| RJ01 | Rejection of invention patent application after publication |