CN107900101A - Rolling method for reducing edge crack of continuous rolling mill - Google Patents
Rolling method for reducing edge crack of continuous rolling mill Download PDFInfo
- Publication number
- CN107900101A CN107900101A CN201711012125.6A CN201711012125A CN107900101A CN 107900101 A CN107900101 A CN 107900101A CN 201711012125 A CN201711012125 A CN 201711012125A CN 107900101 A CN107900101 A CN 107900101A
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- rack
- roll gap
- strip
- tension value
- mill train
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- 238000005096 rolling process Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000003801 milling Methods 0.000 claims description 20
- 102220029634 rs199798127 Human genes 0.000 claims description 3
- 102220015659 rs201107982 Human genes 0.000 claims description 3
- 102220162701 rs201262353 Human genes 0.000 claims description 3
- 102220062467 rs745423387 Human genes 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 abstract description 15
- 239000010959 steel Substances 0.000 abstract description 15
- 238000003466 welding Methods 0.000 abstract description 6
- 230000008859 change Effects 0.000 description 7
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 238000005275 alloying Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
-
- 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
- B21B1/24—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 in a continuous or semi-continuous process
- B21B1/28—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 in a continuous or semi-continuous process by cold-rolling, e.g. Steckel cold mill
-
- 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
- B21B37/48—Tension control; Compression control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
Abstract
The invention discloses a rolling method for reducing edge cracks of a continuous rolling mill, which is characterized in that when a welding seam of strip steel reaches a preset distance of each rack of a continuous rolling mill set, the roll seam lifting amount of each rack is controlled to be increased, so that the roll seam of the strip steel enters each rack, the thickness of the welding seam is increased, and the rolling force of a welding seam area is reduced, thereby avoiding edge cracks and strip breakage accidents caused by over-thin strip heads and over-high rolling force, and ensuring smooth rolling. And increasing the additional tension value of each stand to further obtain the set tension value of each stand, rolling the strip steel according to the set tension value, further reducing the tensile stress of a welding line region, avoiding or reducing edge cracks, and preventing the phenomenon that the strip is broken due to the edge cracks of the front region and the rear region of the welding line, so that the free rolling of a rolling mill is facilitated.
Description
Technical field
This application involves belt steel rolling technical field, more particularly to a kind of milling method for reducing tandem mill side and splitting.
Background technology
High-strength steel is the high-end market kind in cold-reduced sheet field, has added value height, yield strength is high, tensile strength is high
Feature.Who can guarantee that stable yields is efficient, overcome the production difficulty of high added value variety steel, it is meant that has grasped opportunity, has captured
Market.
In the development process of high-strength steel, since high-strength steel adds alloying element, cause the change of component and tissue, cause material
Material is larger in cold even mutual aid system devised for poor peasants sequence brittleness, easily triggers the side of milling train welded seam area to split, in the operation of rolling, causes broken belt, every time
It is serious to have impact on normal rhythm of production when influence production 1 is small, cause great economic loss.
The content of the invention
Invention provides a kind of milling method for reducing tandem mill side and splitting, to solve to cause broken belt in the operation of rolling
Technical problem.
In order to solve the above technical problems, the present invention provides a kind of milling method for reducing tandem mill side and splitting, the method
Including：When the pre-determined distance for each rack that the weld seam of strip reaches Continuous mill train, control increases the roll gap Uplifting amount of each rack,
So that the roll gap of the strip enters each rack；Increase the additional tension value of each rack, and then obtain the setting tension force of each rack
Value, and the strip is rolled according to the setting tension value.
Preferably, during the pre-determined distance of each rack for reaching Continuous mill train when the weld seam of strip, control increases each machine
The roll gap Uplifting amount of frame so that the roll gap of the strip enters each rack, specifically includes：Weld seam based on strip obtains tandem mill
The roll gap incrementss of each rack of group；Roll gap incrementss based on each rack, determine the reality of each rack of the Continuous mill train
Roll roll gap amount；Before each rack of weld seam arrival of the strip during pre-determined distance, the actual rolling roll gap amount based on each rack
Lifting roll gap so that the roll gap of the strip enters each rack.
Preferably, the weld seam based on strip obtains the roll gap incrementss of each rack of Continuous mill train, including：Obtain institute
State the roll gap incrementss Δ S=0.3mm of the 1# racks of Continuous mill train；Obtain the roll gap incrementss Δ S of the 2# racks of Continuous mill train
=0.5mm；Obtain the roll gap incrementss Δ S=0.5mm of the 3# racks of Continuous mill train；Obtain the roll gap of the 4# racks of Continuous mill train
Incrementss Δ S=0.3mm.
Preferably, the pre-determined distance is 0-1m.
Preferably, the additional tension value of each rack of increase, and then the setting tension value of each rack is obtained, and according to institute
Setting tension value is stated to roll the strip, including：Obtain the additional tension between each rack；Based on each rack
Additional tension and basic tension value, obtain each rack of setting tension force of each rack according to corresponding setting tension value to described
Strip is rolled.
Preferably, the additional tension obtained between each rack, including：Obtain going out for the 1# racks of the Continuous mill train
Mouth additional tension value T12=1.28；Obtain the outlet additional tension value T23=1.25 of the 2# racks of Continuous mill train；Obtain tandem rolling
The outlet additional tension value T34=1.2 of the 3# racks of unit；Obtain the outlet additional tension value T45 of the 4# racks of Continuous mill train
=1.15.
Preferably, the control increases the roll gap Uplifting amount of each rack so that the roll gap of the strip enter each rack it
Before, the method further includes：Control first mode of the Continuous mill train from thickness control pattern switching for setting.
Preferably, the control increases the roll gap Uplifting amount of each rack so that the roll gap of the strip enter each rack it
Afterwards, the method further includes：The Continuous mill train is controlled to be switched to thickness control pattern from the first mode of setting.
By one or more technical solution of the present invention, the invention has the advantages that or advantage：
The invention discloses a kind of milling method for reducing tandem mill side and splitting, when the weld seam of strip reaches each of Continuous mill train
During the pre-determined distance of rack, control increases the roll gap Uplifting amount of each rack so that the roll gap of the strip enters each rack, to reach
To increase throat depth, reduce welded seam area roll-force mode so that avoid it is excessively thin because taking the lead, roll-force it is excessive and generation
Edge breach simultaneously produces broken belt accident, ensures that rolling is smoothed out.Increase the additional tension value of each rack, and then obtain each rack
Setting tension value, and according to it is described setting tension value the strip is rolled, and then reduce welded seam area tension,
It can avoid or reduce side to split, prevent the side in region before and after weld seam from splitting the phenomenon for causing broken belt, freely rolled so as to be conducive to milling train
System.
Brief description of the drawings
Fig. 1 is the schematic diagram of roll gap in the embodiment of the present invention；
Fig. 2 is a kind of implementation process figure for reducing the milling method that tandem mill side is split in the embodiment of the present invention.
Embodiment
In order to make the application the technical staff in the technical field be more clearly understood that the application, below in conjunction with the accompanying drawings,
Technical scheme is described in detail by specific embodiment.
In the present invention, a kind of milling method for reducing tandem mill side and splitting is disclosed, it is specific by inputting roll gap variable quantity
Numerical value, to reach increase throat depth, reduces the mode of welded seam area roll-force, so as to avoid, roll-force mistake excessively thin because taking the lead
The big and edge breach that produces simultaneously produces broken belt accident, ensures that rolling is smoothed out.By adjusting milling train low speed additional tension number
Value, reduces the tension of welded seam area, is split so as to avoid or reduce side, prevents the side in region before and after weld seam is split from causing showing for broken belt
As so as to be conducive to milling train free rolling.The main purpose of tension values adjustment is controlled rolling power, prevents the mistake of roll-force
Cross transition pressure of the increase to steel edge portion.
In addition, by varying trimming mode, the principle for cutting crescent moon is modified, avoids weld seam from cutting crescent moon, reduce because
Split on the side that crescent moon punching press tear strip occurs.
It refer to Fig. 1 below, be the schematic diagram of roll gap in the embodiment of the present invention.
Wherein, weld seam is the junction of two kinds of strips (strip A and strip B), its thickness ratio each strip thickness will thickness,
Weld seam is also required to each rack by Continuous mill train (such as 1# racks and 2# racks).
A kind of implementation process figure for reducing the milling method that tandem mill side is split is disclosed, it is specific as follows：
Step 11, during the pre-determined distance for each rack for reaching Continuous mill train when the weld seam of strip, control increases each rack
Roll gap Uplifting amount so that the roll gap of the strip enters each rack.
Change the roll gap Uplifting amount of increase frame in the control so that the roll gap of the strip enters before each rack, meeting
Control first mode of the Continuous mill train from thickness control pattern switching for setting.First mode is to implement the present invention's
The pattern used is needed when reducing the milling method split on tandem mill side, is mainly switched to after first mode, then can control
Change the roll gap Uplifting amount of increase frame so that the roll gap of the strip enters each rack.
Certainly, cause the strip roll gap enter each rack after, it is necessary to control the Continuous mill train from setting
First mode is switched to thickness control pattern.
In specific implementation process, can first weld seam based on strip obtain Continuous mill train each rack roll gap increase
Amount；The roll gap incrementss of each rack are then based on, determine the actual rolling roll gap amount of each rack of the Continuous mill train；Finally exist
Before each rack of weld seam arrival of the strip during pre-determined distance, the actual rolling roll gap amount lifting roll gap based on each rack so that
The roll gap of the strip enters each rack.
As a kind of optional embodiment, the pre-determined distance may be set to 0-1m.
Further, during the roll gap incrementss of each rack of Continuous mill train are obtained, since Continuous mill train has
Four racks：1# racks, 2# racks, 3# racks, 4# racks.Weld metal zone is realized using the roll gap variable quantity adjusted during FGC
Domain thickens, adjusting be 1-4# racks roll gap, by adjusting roll gap variable quantity each rack outlet is thickened, can look for every
A roll of thickness specification etc. fills in corresponding roll gap change numerical value, and control obtains different welded seam area belt steel thickness.
Further, Thin Specs in order to prevent, change specification mainly for steel grades such as the high-strength steel of thickness ＜ 1.0mm or
The side brisement band of same specification welded seam area, took weld seam to increase roll gap variable quantity, and increased the pattern of the thickness of welded seam area, subtract
The strategy of few roll-force can reduce side and split.
Specifically, the roll gap incrementss Δ S=0.3mm of the 1# racks of the Continuous mill train is obtained；Obtain Continuous mill train
2# racks roll gap incrementss Δ S=0.5mm；Obtain the roll gap incrementss Δ S=0.5mm of the 3# racks of Continuous mill train；Obtain
Obtain the roll gap incrementss Δ S=0.3mm of the 4# racks of Continuous mill train.
This numerical value interface is increased on HMI, value, Δ S is for operative employee's unrestricted choice for adjustment.
Citing illustrates below.
In 10m before weld seam enters milling train, then the roll gap incrementss of each rack are obtained, work as weld seam after issuing roll gap incrementss
1m starts lifting roll gap before reaching rack, and 1m is closed apart from automatic growth control AGC before and after weld seam.
After weld seam is by milling train, the pressure of 1-4# racks roll gap, is switched to automatic growth control AGC thickness control moulds
Formula, recovers normal thickness control.
Step 12, increase the additional tension value of each rack, and then obtain the setting tension value of each rack, and set according to described
Determine tension value to roll the strip.
In specific implementation process, the additional tension between each rack is obtained first；Secondly based on each rack
Additional tension and basic tension value, obtain the setting tension value of each rack；Each rack of secondary control is according to corresponding setting tension force again
Value rolls the strip.
Specifically, the additional tension obtained between each rack, including：Obtain the 1# racks of the Continuous mill train
Export additional tension value T12=1.28；Obtain the outlet additional tension value T23=1.25 of the 2# racks of Continuous mill train；Connected
The outlet additional tension value T34=1.2 of the 3# racks of milling train group；Obtain the outlet additional tension value of the 4# racks of Continuous mill train
T45=1.15.
In order to balance roll-force under milling train low speed, tension force can be increased and reduce roll-force, such a high-strength steel for being also easy to produce side and splitting
Need to set specific additional tension numerical value, increase extremely for high-strength steel low speed rolling power, edge crack, gives certain attached
Add tension force, scheme is as follows：
1 tandem mill of table produces high-strength steel additional tension numerical value.
Table 1
| T12 | T23 | T34 | T45 | |
| Low speed additional tension | 1.28 | 1.25 | 1.2 | 1.15 |
High small using stand out in the rolling high-strength that easily occurs splitting on side, the difference of the developed width of front and rear coil of strip is tried one's best ＜
The coil of strip transition of 50mm, front and rear welding machine and end trimming shears avoid cutting crescent moon as far as possible, the pattern of Direct Rolling after being welded using strip.
By one or more embodiment of the present invention, the invention has the advantages that or advantage：
The invention discloses a kind of milling method for reducing tandem mill side and splitting, when the weld seam of strip reaches each of Continuous mill train
During the pre-determined distance of rack, control increases the roll gap Uplifting amount of each rack so that the roll gap of the strip enters each rack, to reach
To increase throat depth, reduce welded seam area roll-force mode so that avoid it is excessively thin because taking the lead, roll-force it is excessive and generation
Edge breach simultaneously produces broken belt accident, ensures that rolling is smoothed out.Increase the additional tension value of each rack, and then obtain each rack
Setting tension value, and according to it is described setting tension value the strip is rolled, and then reduce welded seam area tension,
It can avoid or reduce side to split, prevent the side in region before and after weld seam from splitting the phenomenon for causing broken belt, freely rolled so as to be conducive to milling train
System.
Although having been described for the preferred embodiment of the application, one of ordinary skilled in the art once knows substantially
Creative concept, then can make these embodiments other change and modification.So appended claims are intended to be construed to wrap
Include preferred embodiment and fall into all change and modification of the application scope.
Obviously, those skilled in the art can carry out the application essence of the various modification and variations without departing from the application
God and scope.In this way, if these modifications and variations of the application belong to the scope of the application claim and its equivalent technologies
Within, then the application is also intended to comprising including these modification and variations.
Claims (8)
- A kind of 1. milling method for reducing tandem mill side and splitting, it is characterised in that the described method includes：When the pre-determined distance for each rack that the weld seam of strip reaches Continuous mill train, control increases the roll gap Uplifting amount of each rack, So that the roll gap of the strip enters each rack；Increase the additional tension value of each rack, and then obtain the setting tension value of each rack, and according to the setting tension value pair The strip is rolled.
- 2. the method as described in claim 1, it is characterised in that each rack that Continuous mill train is reached when the weld seam of strip During pre-determined distance, control increases the roll gap Uplifting amount of each rack so that the roll gap of the strip enters each rack, specifically includes：Weld seam based on strip obtains the roll gap incrementss of each rack of Continuous mill train；Roll gap incrementss based on each rack, determine the actual rolling roll gap amount of each rack of the Continuous mill train；Before each rack of weld seam arrival of the strip during pre-determined distance, the actual rolling roll gap amount lifting roller based on each rack Seam so that the roll gap of the strip enters each rack.
- 3. method as claimed in claim 2, it is characterised in that the weld seam based on strip obtains each rack of Continuous mill train Roll gap incrementss, including：Obtain the roll gap incrementss Δ S=0.3mm of the 1# racks of the Continuous mill train；Obtain the roll gap incrementss Δ S=0.5mm of the 2# racks of Continuous mill train；Obtain the roll gap incrementss Δ S=0.5mm of the 3# racks of Continuous mill train；Obtain the roll gap incrementss Δ S=0.3mm of the 4# racks of Continuous mill train.
- 4. the method as described in claim 1, it is characterised in that the pre-determined distance is 0-1m.
- 5. the method as described in claim 1, it is characterised in that the additional tension value of each rack of increase, and then obtain each The setting tension value of rack, and the strip is rolled according to the setting tension value, including：Obtain the additional tension between each rack；Additional tension and basic tension value based on each rack, obtain the setting tension value of each rack；Each rack is controlled to be rolled according to corresponding setting tension value to the strip.
- 6. method as claimed in claim 5, it is characterised in that the additional tension obtained between each rack, including：Obtain the outlet additional tension value T12=1.28 of the 1# racks of the Continuous mill train；Obtain the outlet additional tension value T23=1.25 of the 2# racks of Continuous mill train；Obtain the outlet additional tension value T34=1.2 of the 3# racks of Continuous mill train；Obtain the outlet additional tension value T45=1.15 of the 4# racks of Continuous mill train.
- 7. the method as described in claim 1, it is characterised in that the control changes the roll gap Uplifting amount of increase frame so that institute The roll gap for stating strip enters before each rack, and the method further includes：Control first mode of the Continuous mill train from thickness control pattern switching for setting.
- 8. the method for claim 7, it is characterised in that the control changes the roll gap Uplifting amount of increase frame so that institute The roll gap for stating strip enters after each rack, and the method further includes：The Continuous mill train is controlled to be switched to thickness control pattern from the first mode of setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711012125.6A CN107900101A (en) | 2017-10-26 | 2017-10-26 | Rolling method for reducing edge crack of continuous rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711012125.6A CN107900101A (en) | 2017-10-26 | 2017-10-26 | Rolling method for reducing edge crack of continuous rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107900101A true CN107900101A (en) | 2018-04-13 |
Family
ID=61840901
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| CN201711012125.6A Pending CN107900101A (en) | 2017-10-26 | 2017-10-26 | Rolling method for reducing edge crack of continuous rolling mill |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161652A (en) * | 2018-08-01 | 2019-01-08 | 首钢智新迁安电磁材料有限公司 | A method of reducing seam cracking risk |
| CN110064653A (en) * | 2019-04-18 | 2019-07-30 | 首钢京唐钢铁联合有限责任公司 | Method and device applied to rolling of transition section of cold continuous rolling mill |
| CN113020278A (en) * | 2021-03-05 | 2021-06-25 | 武汉钢铁有限公司 | Method for prejudging cold rolling brittle failure occurrence of oriented silicon steel |
| CN113042543A (en) * | 2021-03-05 | 2021-06-29 | 首钢京唐钢铁联合有限责任公司 | Rolling mill roll gap adjusting method and device and storage medium |
| CN113843281A (en) * | 2021-08-31 | 2021-12-28 | 天津市新天钢冷轧薄板有限公司 | Control method for improving quality of edge of hard-rolled coil |
| CN114789199A (en) * | 2021-10-14 | 2022-07-26 | 天津市新宇彩板有限公司 | Automatic accurate control method and system for pinch roll before cold rolling shear |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857809A (en) * | 2005-05-20 | 2006-11-08 | 鞍山钢铁集团公司 | Dynamic thickening rolling process of controlling break of cold rolled thin strip steel |
| CN101934289A (en) * | 2009-06-30 | 2011-01-05 | 上海宝信软件股份有限公司 | Adjusting method of stainless-steel cold continuous-rolling roll gap |
| CN103191917A (en) * | 2012-01-05 | 2013-07-10 | 鞍钢股份有限公司 | Rolling process of high-strength cold-rolled strip steel |
| CN104324939A (en) * | 2014-09-04 | 2015-02-04 | 首钢京唐钢铁联合有限责任公司 | Strip steel rolling method |
| CN106391708A (en) * | 2016-10-28 | 2017-02-15 | 鞍钢未来钢铁研究院 | Rolling method for production of ultra-thin strip steel through six-roller single-rack reversable cold-rolling mill |
-
2017
- 2017-10-26 CN CN201711012125.6A patent/CN107900101A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1857809A (en) * | 2005-05-20 | 2006-11-08 | 鞍山钢铁集团公司 | Dynamic thickening rolling process of controlling break of cold rolled thin strip steel |
| CN101934289A (en) * | 2009-06-30 | 2011-01-05 | 上海宝信软件股份有限公司 | Adjusting method of stainless-steel cold continuous-rolling roll gap |
| CN103191917A (en) * | 2012-01-05 | 2013-07-10 | 鞍钢股份有限公司 | Rolling process of high-strength cold-rolled strip steel |
| CN104324939A (en) * | 2014-09-04 | 2015-02-04 | 首钢京唐钢铁联合有限责任公司 | Strip steel rolling method |
| CN106391708A (en) * | 2016-10-28 | 2017-02-15 | 鞍钢未来钢铁研究院 | Rolling method for production of ultra-thin strip steel through six-roller single-rack reversable cold-rolling mill |
Non-Patent Citations (1)
| Title |
|---|
| 陈丹等: "UCMW冷连轧机薄带钢轧制断带分析研究", 《冶金自动化》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109161652A (en) * | 2018-08-01 | 2019-01-08 | 首钢智新迁安电磁材料有限公司 | A method of reducing seam cracking risk |
| CN110064653A (en) * | 2019-04-18 | 2019-07-30 | 首钢京唐钢铁联合有限责任公司 | Method and device applied to rolling of transition section of cold continuous rolling mill |
| CN113020278A (en) * | 2021-03-05 | 2021-06-25 | 武汉钢铁有限公司 | Method for prejudging cold rolling brittle failure occurrence of oriented silicon steel |
| CN113042543A (en) * | 2021-03-05 | 2021-06-29 | 首钢京唐钢铁联合有限责任公司 | Rolling mill roll gap adjusting method and device and storage medium |
| CN113020278B (en) * | 2021-03-05 | 2022-07-22 | 武汉钢铁有限公司 | Method for prejudging cold rolling brittle failure occurrence of oriented silicon steel |
| CN113042543B (en) * | 2021-03-05 | 2022-12-13 | 首钢京唐钢铁联合有限责任公司 | Rolling mill roll gap adjusting method and device and storage medium |
| CN113843281A (en) * | 2021-08-31 | 2021-12-28 | 天津市新天钢冷轧薄板有限公司 | Control method for improving quality of edge of hard-rolled coil |
| CN114789199A (en) * | 2021-10-14 | 2022-07-26 | 天津市新宇彩板有限公司 | Automatic accurate control method and system for pinch roll before cold rolling shear |
| CN114789199B (en) * | 2021-10-14 | 2024-01-12 | 天津市新宇彩板有限公司 | Automatic accurate control method and system for front pinch roll of cold rolling shears |
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