CN107626971A - A kind of method for reducing strip cutting edge amount - Google Patents
A kind of method for reducing strip cutting edge amount Download PDFInfo
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- CN107626971A CN107626971A CN201610562584.0A CN201610562584A CN107626971A CN 107626971 A CN107626971 A CN 107626971A CN 201610562584 A CN201610562584 A CN 201610562584A CN 107626971 A CN107626971 A CN 107626971A
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Abstract
The present invention relates to a kind of method for reducing strip cutting edge amount, produced suitable for cold rolled silicon steel, including：1) the offline edge crack of steel coil defect situation of milling train is classified：2) defect is split for A classes side, using one-way shear method cutting edge；3) defect is split for B classes and C classes side, using inequilateral cutting method：4) in cold-rolling mill crossing process, adjust deviation rectification roller and strip position overlaps with production line center；5) strip low speed operation when cold-rolling mill starts to start, repeatedly measurement, discovery cutting edge amount is irregular, and manually offset assembly is adjusted in time；Tension force when being rolled in addition to special circumstances is controlled：The present invention, further according to the method that is manually adjusted is actually needed, realizes strip minimum cutting edge amount by first inputting setting value using bilateral cutting edge mode in edge-trimming machine unit automatic control system, so as to improve product lumber recovery, reduction production cost.
Description
Technical field
The present invention relates to cold-strip steel technical field, more particularly to one kind to cut in cold rolled silicon steel production for reducing strip
The method of side amount.
Background technology
In steel products, cold rolled silicon steel is used for the iron core for making various motors and transformer, is electric power, electronics and military project
Indispensable important soft magnetic alloy in cause, and a kind of important meals functional material of energy-conservation, such product are that state has to go to the toilet
The high technology content product needed, due to its complex manufacturing, controlling difficulties are more, and it, which is produced, can be used as a national steel synthesis
The performance of strength.
Because cold rolled silicon steel is as silicone content increases its yield strength, tensile strength significantly improves, elongation significantly reduces,
Hardness increases rapidly, it is therefore desirable to is rolled using mill, it is more, it is necessary to carry out trimming processing to roll rear edge breach
After could enter annealing operation carry out continuous production.
Current domestic cold rolled silicon steel manufacturer is split for rolling back generally to be removed by the way of cutting edge, and cutting edge unit is adopted
Controlled with automatic control system, but when using unilateral cutting edge or bilateral cutting edge both sides cutting edge amount difference, in the strip after cutting edge
The heart deviates with production line center, follow-up operation is influenceed very big；If all carrying out cutting edge using the identical cutting edge amount of bilateral,
Lumber recovery is had a great influence, production cost is high.
The content of the invention
The invention provides a kind of method for reducing strip cutting edge amount, by first being adopted in edge-trimming machine unit automatic control system
Setting value is inputted with bilateral cutting edge mode, further according to the method that is manually adjusted is actually needed, realizes strip minimum cutting edge amount,
So as to improve product lumber recovery, production cost is reduced.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of method for reducing strip cutting edge amount, is produced suitable for cold rolled silicon steel, including：
1) the offline edge crack of steel coil defect situation of milling train is classified：
Split defect in A classes side：There is side and split in transmission side or fore side one side, another side is boundless to be split；
Split defect in B classes side：All there is side and split in coil of strip both sides, and the depth split of two sides and size are basically identical；
Split defect in C classes side：All there is side and split in coil of strip both sides, but wherein side is substantially more serious than opposite side；
2) defect is split for A classes side, it is specific as follows using one-way shear method：
A, to ensure cutting edge back plate center without departing from production line center, first according to double in edge-trimming machine unit automatic control system
Side cut mode carries out parameter setting, and both sides cutting edge setting value is cutting edge value needed for one side；
B, the wide removal 50~80mm of edges of boards manually of side circle shear reference measure plate for not needing cutting edge, run in strip
During the side discs cut and do not contacted with strip, while push down strip with gum cover in the side, prevent strip running deviation or shake；
3) defect is split for B classes and C classes side, it is specific as follows using inequilateral cutting method：
A, line width setting is entered according to bilateral cut mode, it is first to ensure cutting edge back plate center without departing from production line center
The cutting edge amount of fore side and transmission side is subjected to equivalent setting, setting value is the average value after both sides cutting edge amount is added respectively；
B, the amendment of offset is carried out in " offset " interface of edge-trimming machine unit automatic control system width setting, makes behaviour
The cutting edge amount for making side and transmission side is consistent with actual requirement；
4) cold-rolling mill crossing process：
A, the deviation rectification roller position before circle shear is adjusted, it is overlapped with production line center；
B, after strip reaches deviation rectification roller in crossing process, centering of strip steel is carried out with welding machine centralising device, then deviation rectification roller is again
Pressing；
5) later stage tracking adjustment：
A, when cold-rolling mill starts to start, strip is run with≤30m/min low speed, and strip width is taken multiple measurements,
Timely follow-up investigations, it is found that the irregular timely manually offset assembly of cutting edge amount is adjusted；
B, because orientation silicon steel compares crisp fritter, batch after applying tension force, to prevent overtension from damaging steel plate, prevent simultaneously
Only there is turriform to batch, tension force when rolling situations below is controlled：
NGO non-orientation silicon steels, during wide more than the 1150mm of plate, tension force setting value is 20~25N；
CGO common orientation silicon steels, during a rolling process 0.5~0.62mm of thickness of slab, tension force setting value is 20~25N；
CGO common orientation silicon steels, during below thickness of slab 0.3mm, tension force setting value is 10~15N；
Milling train semi-finished product, during 0.62~1.52mm of thickness of slab, tension force setting value is 22~28N.
Compared with prior art, the beneficial effects of the invention are as follows：
1) the different coil of strip of degree is split for two sides, uses elder generation to input setting value in a manner of bilateral cutting edge, then correct
The method of offset carries out inequilateral shearing, improves lumber recovery, reduces rejection number；
2) for the unilateral coil of strip for thering is side to split defect, use elder generation to input setting value in a manner of bilateral cutting edge, then will not cut
The method that side side circle shear removes manually carries out one-way shear, improves lumber recovery, reduces rejection number；
3) more serious product is split for side, the mode cut online with hour offset, reduces shearing rejection number.
Embodiment
A kind of method for reducing strip cutting edge amount of the present invention, is produced suitable for cold rolled silicon steel, including：
1) the offline edge crack of steel coil defect situation of milling train is classified：
Split defect in A classes side：There is side and split in transmission side or fore side one side, another side is boundless to be split；
Split defect in B classes side：All there is side and split in coil of strip both sides, and the depth split of two sides and size are basically identical；
Split defect in C classes side：All there is side and split in coil of strip both sides, but wherein side is substantially more serious than opposite side；
2) defect is split for A classes side, it is specific as follows using one-way shear method：
A, to ensure cutting edge back plate center without departing from production line center, first according to double in edge-trimming machine unit automatic control system
Side cut mode carries out parameter setting, and both sides cutting edge setting value is cutting edge value needed for one side；
B, the wide removal 50~80mm of edges of boards manually of side circle shear reference measure plate for not needing cutting edge, run in strip
During the side discs cut and do not contacted with strip, while push down strip with gum cover in the side, prevent strip running deviation or shake；
3) defect is split for B classes and C classes side, it is specific as follows using inequilateral cutting method：
A, line width setting is entered according to bilateral cut mode, it is first to ensure cutting edge back plate center without departing from production line center
The cutting edge amount of fore side and transmission side is subjected to equivalent setting, setting value is the average value after both sides cutting edge amount is added respectively；
B, the amendment of offset is carried out in " offset " interface of edge-trimming machine unit automatic control system width setting, makes behaviour
The cutting edge amount for making side and transmission side is consistent with actual requirement；
4) cold-rolling mill crossing process：
A, the deviation rectification roller position before circle shear is adjusted, it is overlapped with production line center；
B, after strip reaches deviation rectification roller in crossing process, centering of strip steel is carried out with welding machine centralising device, then deviation rectification roller is again
Pressing；
5) later stage tracking adjustment：
A, when cold-rolling mill starts to start, strip is run with≤30m/min low speed, and strip width is taken multiple measurements,
Timely follow-up investigations, it is found that the irregular timely manually offset assembly of cutting edge amount is adjusted；
B, because orientation silicon steel compares crisp fritter, batch after applying tension force, to prevent overtension from damaging steel plate, prevent simultaneously
Only there is turriform to batch, tension force when rolling situations below is controlled：
NGO non-orientation silicon steels, during wide more than the 1150mm of plate, tension force setting value is 20~25N；
CGO common orientation silicon steels, during a rolling process 0.5~0.62mm of thickness of slab, tension force setting value is 20~25N；
CGO common orientation silicon steels, during below thickness of slab 0.3mm, tension force setting value is 10~15N；
Milling train semi-finished product, during 0.62~1.52mm of thickness of slab, tension force setting value is 22~28N.
Following examples are implemented under premised on technical solution of the present invention, give detailed embodiment and tool
The operating process of body, but protection scope of the present invention is not limited to following embodiments.Method therefor is such as without spy in following embodiments
It is conventional method not mentionlet alone bright.
【Embodiment】
1) the offline edge crack of steel coil defect situation of milling train is classified：
Split defect in A classes side：There is side and split in transmission side or fore side one side, another side is boundless to be split；
Split defect in B classes side：All there is side and split in coil of strip both sides, and the depth split of two sides and size are basically identical；
Split defect in C classes side：All there is side and split in coil of strip both sides, but wherein side is substantially more serious than opposite side；
2) defect is split for A classes side, it is specific as follows using one-way shear method cutting edge：
To ensure cutting edge back plate center without departing from production line center, first according to bilateral in edge-trimming machine unit automatic control system
Cut mode carries out parameter setting, and both sides cutting edge setting value is cutting edge value needed for one side；If the requirement of cutting edge value is " transmission side is cut
Side 20mm ", data setting first is carried out according to bilateral scissors, i.e. transmission side and fore side sets cutting edge value 20mm, then operation
The plate of the circle shear reference measure of side is wide, removes 50~80mm manually, the side discs are cut with strip not in strip running
Contact, while strip is pushed down with gum cover in the side, prevent strip running deviation or shake；
3) inequilateral cutting method：
Enter line width setting according to bilateral cut mode, to ensure that cutting edge back plate center without departing from production line center, first will
The cutting edge amount of fore side and transmission side carries out equivalent setting, and setting value is the average value after both sides cutting edge amount is added respectively；Such as cut
Side is required as " transmission side cutting edge 20mm, fore side cutting edge 10mm ", both sides cutting edge amount adds up to 30mm, first according to average value 15mm
Set both sides cutting edge amount.
The amendment of offset is carried out in " offset " interface of edge-trimming machine unit automatic control system width setting, makes operation
The cutting edge amount of side and transmission side is consistent with actual requirement；As inputted "+5 " in the above-described example, thus reach that " fore side is cut
Side amount is 10mm, and the cutting edge that transmission side cutting edge amount is 20mm " requires.
4) cold-rolling mill crossing process：
A, the deviation rectification roller position before circle shear is adjusted, it is overlapped with production line center；
B, after strip reaches deviation rectification roller in crossing process, centering of strip steel is carried out with welding machine centralising device, then deviation rectification roller is again
Pressing；
5) later stage tracking adjustment：
A, when cold-rolling mill starts to start, strip is run with 30m/min low speed, and strip width is taken multiple measurements, and
When follow-up investigations, find cutting edge amount it is irregular in time manually offset assembly be adjusted；
B, because orientation silicon steel compares crisp fritter, batch after applying tension force, to prevent overtension from damaging steel plate, prevent simultaneously
Only there is turriform to batch, tension force when rolling situations below is controlled：
NGO non-orientation silicon steels, during wide more than the 1150mm of plate, tension force setting value is 20~25N；
CGO common orientation silicon steels, during a rolling process 0.5~0.62mm of thickness of slab, tension force setting value is 20~25N；
CGO common orientation silicon steels, during below thickness of slab 0.3mm, tension force setting value is 10~15N；
Milling train semi-finished product, during 0.62~1.52mm of thickness of slab, tension force setting value is 22~28N.
In the present embodiment, after taking above measure, lumber recovery 1.2% or so is improved, by 60,000 tons of calculating are produced per year, can be subtracted
Few 70 tons of waste product, reduces more than 70 ten thousand yuan of loss.Piece/month of cutting edge usage amount 8 is reduced simultaneously, 80,000 yuan or so of accumulative minimizing cost, is taken
Obtained good economic benefit.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (1)
1. a kind of method for reducing strip cutting edge amount, is produced suitable for cold rolled silicon steel, it is characterised in that including：
1) the offline edge crack of steel coil defect situation of milling train is classified：
Split defect in A classes side：There is side and split in transmission side or fore side one side, another side is boundless to be split；
Split defect in B classes side：All there is side and split in coil of strip both sides, and the depth split of two sides and size are basically identical；
Split defect in C classes side：All there is side and split in coil of strip both sides, but wherein side is substantially more serious than opposite side；
2) defect is split for A classes side, it is specific as follows using one-way shear method：
A, to ensure cutting edge back plate center without departing from production line center, first according to bilateral scissors in edge-trimming machine unit automatic control system
Butt formula carries out parameter setting, and both sides cutting edge setting value is cutting edge value needed for one side；
B, the wide removal 50~80mm of edges of boards manually of side circle shear reference measure plate for not needing cutting edge, in strip running
In the side discs cut and do not contacted with strip, while push down strip with gum cover in the side, prevent strip running deviation or shake；
3) defect is split for B classes and C classes side, it is specific as follows using inequilateral cutting method：
A, line width setting is entered according to bilateral cut mode, to ensure that cutting edge back plate center, first will behaviour without departing from production line center
The cutting edge amount for making side and transmission side carries out equivalent setting, and setting value is the average value after both sides cutting edge amount is added respectively；
B, the amendment of offset is carried out in " offset " interface of edge-trimming machine unit automatic control system width setting, makes fore side
And the cutting edge amount of transmission side is consistent with actual requirement；
4) cold-rolling mill crossing process：
A, the deviation rectification roller position before circle shear is adjusted, it is overlapped with production line center；
B, after strip reaches deviation rectification roller in crossing process, centering of strip steel is carried out with welding machine centralising device, then deviation rectification roller presses again；
5) later stage tracking adjustment：
A, when cold-rolling mill starts to start, strip is run with≤30m/min low speed, strip width is taken multiple measurements, in time
Follow-up investigations, it is found that the irregular timely manually offset assembly of cutting edge amount is adjusted；
B, because orientation silicon steel compares crisp fritter, batch after applying tension force, to prevent overtension from damaging steel plate, while prevent out
Existing turriform is batched, and tension force when being rolled to situations below is controlled：
NGO non-orientation silicon steels, during wide more than the 1150mm of plate, tension force setting value is 20~25N；
CGO common orientation silicon steels, during a rolling process 0.5~0.62mm of thickness of slab, tension force setting value is 20~25N；
CGO common orientation silicon steels, during below thickness of slab 0.3mm, tension force setting value is 10~15N；
Milling train semi-finished product, during 0.62~1.52mm of thickness of slab, tension force setting value is 22~28N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610562584.0A CN107626971B (en) | 2016-07-18 | 2016-07-18 | Method for reducing edge shearing amount of strip steel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610562584.0A CN107626971B (en) | 2016-07-18 | 2016-07-18 | Method for reducing edge shearing amount of strip steel |
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| CN107626971A true CN107626971A (en) | 2018-01-26 |
| CN107626971B CN107626971B (en) | 2020-02-18 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145646A (en) * | 2021-04-23 | 2021-07-23 | 无锡普天铁心股份有限公司 | Process for improving edge cracking of silicon steel edge |
| CN113751517A (en) * | 2021-09-13 | 2021-12-07 | 鞍钢股份有限公司 | Control method for improving cold rolling strip breakage of high-grade non-oriented silicon steel |
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| JP2000225512A (en) * | 1999-02-09 | 2000-08-15 | Nippon Steel Corp | Side trimmer device |
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| CN203018827U (en) * | 2013-01-04 | 2013-06-26 | 江苏沙钢集团有限公司 | Improved structure of plate combined shearing mechanism |
| CN104841697A (en) * | 2015-05-15 | 2015-08-19 | 南京钢铁股份有限公司 | Control method for automatically preventing steel plate from deflection in shearing process of bilateral scissors |
| CN205183900U (en) * | 2015-11-30 | 2016-04-27 | 郑州金泰制罐有限公司 | Metal sheet automatic cutout production line |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3741219A1 (en) * | 1987-12-05 | 1989-06-15 | Schloemann Siemag Ag | Device for trimming the longitudinal edges of running rolled band |
| JP2000225512A (en) * | 1999-02-09 | 2000-08-15 | Nippon Steel Corp | Side trimmer device |
| CN1262377C (en) * | 2000-11-04 | 2006-07-05 | Sms迪马格股份公司 | Compact rotary shears |
| CN102892696A (en) * | 2010-03-16 | 2013-01-23 | 株式会社尼利可 | Web center position control device, method and program, and web trimming device |
| CN202045408U (en) * | 2011-01-30 | 2011-11-23 | 宝山钢铁股份有限公司 | Stepwise side shearing device |
| CN202639484U (en) * | 2012-05-25 | 2013-01-02 | 天津力神电池股份有限公司 | Rolling machine double trimming device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113145646A (en) * | 2021-04-23 | 2021-07-23 | 无锡普天铁心股份有限公司 | Process for improving edge cracking of silicon steel edge |
| CN113145646B (en) * | 2021-04-23 | 2021-12-10 | 无锡普天铁心股份有限公司 | Process for improving edge cracking of silicon steel edge |
| CN113751517A (en) * | 2021-09-13 | 2021-12-07 | 鞍钢股份有限公司 | Control method for improving cold rolling strip breakage of high-grade non-oriented silicon steel |
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