CN109702019A - Method for preventing cold rolling and uncoiling difficulty of high-strength steel - Google Patents
Method for preventing cold rolling and uncoiling difficulty of high-strength steel Download PDFInfo
- Publication number
- CN109702019A CN109702019A CN201811567812.9A CN201811567812A CN109702019A CN 109702019 A CN109702019 A CN 109702019A CN 201811567812 A CN201811567812 A CN 201811567812A CN 109702019 A CN109702019 A CN 109702019A
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- Prior art keywords
- tail
- coil
- strip
- roll
- pressure
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- 238000000034 method Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 31
- 239000010959 steel Substances 0.000 title claims abstract description 31
- 238000005097 cold rolling Methods 0.000 title abstract description 9
- 230000001788 irregular Effects 0.000 claims abstract description 5
- 238000007689 inspection Methods 0.000 claims abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 11
- 238000012544 monitoring process Methods 0.000 abstract description 10
- 238000005096 rolling process Methods 0.000 abstract description 7
- 238000005098 hot rolling Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract 4
- 238000005520 cutting process Methods 0.000 abstract 1
- 239000000523 sample Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
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- Metal Rolling (AREA)
Abstract
The invention discloses a method for preventing high-strength steel from being difficult to uncoil in a cold rolling way, wherein a steel coil is processed by a hot rolling leveling unit, and when the steel coil is thrown, tail pressing control is carried out on a roll gap of an inlet straightening roll; after the tail part reaches the roller, cutting off the irregular shape of the tail part of the steel coil and monitoring the tail part state in an inspection table; when the tail part reaches the tension roller, tail pressing control is carried out on the tension roller; when the tail part reaches the tail pressing roller, tail pressing control is carried out on the tension roller; after the steel coil is coiled, the state of the tail part of the steel coil is monitored, and the like, so that the problem of upwarping or downward buckling of the tail part of the steel coil is effectively solved when the steel coil is coiled in the cold rolling process, and the unplanned shutdown or material throwing accident caused by the fact that the cold rolling process cannot be normally uncoiled for production is remarkably reduced, thereby improving the continuity of the steel rolling process, ensuring the smooth proceeding of the process and improving the production line operation rate.
Description
Technical field
The present invention relates to technical field of steel rolling, in particular to a kind of method for preventing high-strength steel cold roll uncoiling difficulty.
Background technique
Hot rolling produces in the technique of the 780 above high-strength steel of megapascal rank, when rolling up in cold rolling process production, it may appear that hot rolling
Coil of strip tail portion upwarp or the problem of lower button, cause cold rolling process can not normal uncoiling production, lead to non-programmed halt or get rid of material,
Influence its normal production.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of methods for preventing high-strength steel cold roll uncoiling difficulty, to solve
The certainly problem of cold rolling process uncoiling difficulty.
To solve the above-mentioned problems, the present invention provides a kind of method for preventing high-strength steel cold roll uncoiling difficulty, including following
Step:
S1: using hot-rolled leveling unit treat processing coil of strip handled, and when coil of strip throw tail when to entrance straightening roll into
Row pressure tail control；
S2: when the tail portion of the coil of strip to be processed reaches roll, coil of strip tail portion irregular shape cut off and examining
Look into platform monitoring coil of strip tail state；
S3: when the tail portion of the coil of strip to be processed reaches jockey pulley, pressure tail control is carried out to jockey pulley；
S4: when the tail portion of the coil of strip to be processed reaches pressure tail roller, pressure tail control is carried out to pressure tail roller；
S5: the coil of strip to be processed it is coiled after, monitor coil of strip tail state.
Further, in step sl, it is described when coil of strip throw tail when to entrance straightening roll carry out pressure tail control include:
Pressure tail control is carried out to entrance straightening roll by adjusting the roll gap of entrance straightening roll.
Preferably, the roll gap of the entrance straightening roll is -3mm-0mm.
Further, in step s3, when the tail portion of the coil of strip to be processed reaches jockey pulley, pressure tail is carried out to jockey pulley
Control includes:
Pressure tail control is carried out to jockey pulley by adjusting the roll gap of jockey pulley.
Preferably, the roll gap of the jockey pulley is -80mm to -100mm.
Further, in step s 4, when the tail portion of the coil of strip to be processed reaches pressure tail roller, pressure tail is carried out to pressure tail roller
Control includes:
Pressure tail control is carried out to pressure tail roller by adjusting the roll gap of pressure tail roller.
Preferably, the roll gap of the pressure tail roller is -200mm to -230mm.
Further, in step s 5, if detecting, coil of strip tail portion upwarps or lower button, puts down coil of strip tail portion again
It is whole.
The method provided by the invention for preventing high-strength steel cold roll uncoiling difficulty by coil of strip hot rolling skin pass mill group at
Reason carries out pressure tail control to entrance aligning roller gap when coil of strip throws tail；It is irregular to coil of strip tail portion after tail portion reaches roll
Shape carries out excision and monitors tail state in inspection desk；When tail portion reaches jockey pulley, pressure tail control is carried out to jockey pulley；When
When tail portion reaches pressure tail roller, pressure tail control is carried out to jockey pulley；After coil of strip is coiled, the methods of monitoring coil of strip tail state, cold
Roll in process production when rolling up, effectively alleviate coil of strip tail portion upwarp or the problem of lower button, significantly reduce cold rolling process because
Can not normal uncoiling production, caused non-programmed halt or get rid of material accident, to improve the continuity of steel rolling process, guarantee
Technique is gone on smoothly, and improves producing line operating rate.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the control method a kind of stream of specific embodiment provided by the invention for preventing high-strength steel cold roll uncoiling difficulty
Journey schematic diagram.
Specific embodiment
Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Referring to FIG. 1, Fig. 1 is the control method a kind of specific reality provided by the invention for preventing high-strength steel cold roll uncoiling difficulty
Apply the flow diagram of mode.
In a specific embodiment, the control method provided by the present invention for preventing high-strength steel cold roll uncoiling difficulty,
The following steps are included:
S1: using hot-rolled leveling unit treat processing coil of strip handled, and when coil of strip throw tail when to entrance straightening roll into
Row pressure tail control.
In step sl, described entrance straightening roll to be carried out when coil of strip throws tail tail control is pressed to can be used, by adjusting entering
The roll gap of mouth straightening roll carries out pressure tail control to entrance straightening roll, controls the side that the roll gap of entrance straightening roll is adjusted pressure tail
Formula is relatively simple, and can significantly improve the coil of strip Quality of Tail of inlet, and coil of strip tail portion is avoided from initial step and is occurred
It upwarps or lower button, lays preferable quality basis for subsequent handling process.At this point, the roll gap of the entrance straightening roll can for-
3mm-0mm, roll gap is excessive or the too small processing quality that can all influence straightening roll, selects more appropriate roll gap range, Neng Gougeng
Coil of strip tail portion is avoided the occurrence of well to upwarp or lower button.
Theoretically, the roll gap range of entrance straightening roll should be according to coil of strip specification, the pressure tail control accuracy requirement etc. processed
Operating condition determines, it is not limited to which between -3mm-0mm, and it is apparent that adjusted value should be greater than 0mm.
S2: when the tail portion of the coil of strip to be processed reaches roll, coil of strip tail portion irregular shape cut off and examining
Look into platform monitoring coil of strip tail state.Will pass through the tail state of real time monitoring coil of strip, counter-measure is taken in time, guarantees technique
It goes on smoothly.
In step s 2, coil of strip tail portion is monitored, the mode that Image Acquisition can be used is monitored, for example, in work
Make platform corresponding position setting image collecting device, and acquired image information is transmitted to monitoring screen, staff passes through
It identifies image information, judges whether coil of strip tail state is qualified.Alternatively, can also be realized using the first-class mode of such as infrared photography
Infrared probe is mounted on workbench corresponding position by the monitoring to coil of strip tail portion, if coil of strip tail portion tilts or lower button, blocks this
Infrared probe, at this time then can not receiving infrared-ray, and issue alarm signal.
S3: when the tail portion of the coil of strip to be processed reaches jockey pulley, pressure tail control is carried out to jockey pulley.
Further, in step s3, pressure tail control, control can be carried out to jockey pulley by adjusting the roll gap of jockey pulley
The mode that the roll gap of power roller is adjusted pressure tail is relatively simple, and can significantly improve the coil of strip tail portion matter of tension manufacturing procedure
Amount processes in this key step in tension and avoids coil of strip tail portion and occur upwarping or lower button, continuing above-mentioned operation quality
Meanwhile preferable quality basis is laid for subsequent handling process.At this point, the roll gap of the jockey pulley is -80mm to -100mm, roller
The excessive or too small processing quality that can all influence jockey pulley is stitched, more appropriate roll gap range is selected, can preferably avoid out
Existing coil of strip tail portion upwarps or lower button.
Theoretically, the roll gap range of jockey pulley should be according to operating conditions such as coil of strip specification, the pressure tail control accuracy requirements processed
It determines, it is not limited between -80mm to -100mm.
S4: when the tail portion of the coil of strip to be processed reaches pressure tail roller, pressure tail control is carried out to pressure tail roller.
In step s 4, when the tail portion of the coil of strip to be processed reaches pressure tail roller, carrying out pressure tail control to pressure tail roller can be adopted
Pressure tail control is carried out to pressure tail roller with the roll gap by adjusting pressure tail roller.The side that the roll gap of control pressure tail roller is adjusted pressure tail
Formula is relatively simple, and can significantly improve the coil of strip Quality of Tail at pressure tail roller, avoids and occurs in pressure tail step coil of strip tail portion
It upwarps or lower button.At this point, the roll gap of the pressure tail roller is -200mm to -230mm, roll gap is excessive or too small can all influence to press tail roller
Processing quality, select more appropriate roll gap range, can preferably avoid the occurrence of coil of strip tail portion and upwarp or lower button.
Theoretically, press the roll gap range of tail roller should be according to operating conditions such as coil of strip specification, the pressure tail control accuracy requirements processed
It determines, it is not limited between -200mm to -230mm.
S5: the coil of strip to be processed it is coiled after, monitor coil of strip tail state.At the same time it can also which warning device is arranged, when
When tail state exception, capable of emitting pre-warning signal or alarm command, such as issue sound and light alarm signal or push alarm command.
In step s 5, coil of strip tail portion is monitored, the mode that Image Acquisition can be used is monitored, for example, in work
Make platform corresponding position setting image collecting device, and acquired image information is transmitted to monitoring screen, staff passes through
It identifies image information, judges whether coil of strip tail state is qualified.Alternatively, can also be realized using the first-class mode of such as infrared photography
Infrared probe is mounted on workbench corresponding position by the monitoring to coil of strip tail portion, if coil of strip tail portion tilts or lower button, blocks this
Infrared probe, at this time then can not receiving infrared-ray, and issue alarm signal.
In step s 5, if detecting, coil of strip tail portion is upwarped or lower button, coil of strip tail portion is carried out it is smooth again, so as into
One step guarantees coil of strip quality.
In this way, the method provided by the invention for preventing high-strength steel cold roll uncoiling difficulty by coil of strip hot rolling skin pass mill group into
Row processing carries out pressure tail control to entrance aligning roller gap when coil of strip throws tail；After tail portion reaches roll, not to coil of strip tail portion
Regular shape carries out excision and monitors tail state in inspection desk；When tail portion reaches jockey pulley, pressure tail control is carried out to jockey pulley
System；When tail portion reaches pressure tail roller, pressure tail control is carried out to jockey pulley；After coil of strip is coiled, the methods of monitoring coil of strip tail state,
When rolling up in cold rolling process production, upwarping or the problem of lower button, significantly reducing Cold-roller for coil of strip tail portion is effectively alleviated
Sequence because can not normal uncoiling production, caused non-programmed halt or get rid of material accident, to improve the continuity of steel rolling process,
It ensure that technique is gone on smoothly, improve the operating rate and yield rate of production line.
It should be noted last that the above specific embodiment is only used to illustrate the technical scheme of the present invention and not to limit it,
Although being described the invention in detail referring to example, those skilled in the art should understand that, it can be to the present invention
Technical solution be modified or replaced equivalently, without departing from the spirit and scope of the technical solution of the present invention, should all cover
In the scope of the claims of the present invention.
Claims (8)
1. a kind of method for preventing high-strength steel cold roll uncoiling difficulty, which comprises the following steps:
S1: processing coil of strip is treated using hot-rolled leveling unit and is handled, and entrance straightening roll is pressed when coil of strip throws tail
Tail control；
S2: when the tail portion of the coil of strip to be processed reaches roll, excision is carried out to coil of strip tail portion irregular shape and in inspection desk
Monitor coil of strip tail state；
S3: when the tail portion of the coil of strip to be processed reaches jockey pulley, pressure tail control is carried out to jockey pulley；
S4: when the tail portion of the coil of strip to be processed reaches pressure tail roller, pressure tail control is carried out to pressure tail roller；
S5: the coil of strip to be processed it is coiled after, monitor coil of strip tail state.
2. the method for preventing high-strength steel cold roll uncoiling difficulty as described in claim 1, which is characterized in that in step sl, institute
State when coil of strip throw tail when to entrance straightening roll carry out pressure tail control include:
Pressure tail control is carried out to entrance straightening roll by adjusting the roll gap of entrance straightening roll.
3. the method for preventing high-strength steel cold roll uncoiling difficulty as claimed in claim 2, which is characterized in that the entrance straightening roll
Roll gap be -3mm-0mm.
4. the method for preventing high-strength steel cold roll uncoiling difficulty as described in claim 1, which is characterized in that
In step s3, when the tail portion of the coil of strip to be processed reaches jockey pulley, carrying out pressure tail control to jockey pulley includes:
Pressure tail control is carried out to jockey pulley by adjusting the roll gap of jockey pulley.
5. the method for preventing high-strength steel cold roll uncoiling difficulty as claimed in claim 4, which is characterized in that
The roll gap of the jockey pulley is -80mm to -100mm.
6. the method for preventing high-strength steel cold roll uncoiling difficulty as described in claim 1, which is characterized in that
In step s 4, when the tail portion of the coil of strip to be processed reaches pressure tail roller, carrying out pressure tail control to pressure tail roller includes:
Pressure tail control is carried out to pressure tail roller by adjusting the roll gap of pressure tail roller.
7. the method for preventing high-strength steel cold roll uncoiling difficulty as claimed in claim 6, which is characterized in that
The roll gap of the pressure tail roller is -200mm to -230mm.
8. the method for preventing high-strength steel cold roll uncoiling difficulty as described in claim 1, which is characterized in that
In step s 5, if detecting, coil of strip tail portion is upwarped or lower button, is carried out to coil of strip tail portion smooth again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567812.9A CN109702019A (en) | 2018-12-21 | 2018-12-21 | Method for preventing cold rolling and uncoiling difficulty of high-strength steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811567812.9A CN109702019A (en) | 2018-12-21 | 2018-12-21 | Method for preventing cold rolling and uncoiling difficulty of high-strength steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109702019A true CN109702019A (en) | 2019-05-03 |
Family
ID=66257242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811567812.9A Pending CN109702019A (en) | 2018-12-21 | 2018-12-21 | Method for preventing cold rolling and uncoiling difficulty of high-strength steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109702019A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111744958A (en) * | 2020-06-06 | 2020-10-09 | 河钢乐亭钢铁有限公司 | Method for adjusting tail-fixing angle of coil box |
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Cited By (2)
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| CN111744958A (en) * | 2020-06-06 | 2020-10-09 | 河钢乐亭钢铁有限公司 | Method for adjusting tail-fixing angle of coil box |
| CN111744958B (en) * | 2020-06-06 | 2022-03-22 | 河钢乐亭钢铁有限公司 | Method for adjusting tail-fixing angle of coil box |
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Application publication date: 20190503 |
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