CN105817484A - Cold-rolled thick strip head starting coil non-splitting automatic identification and information transmission method - Google Patents
Cold-rolled thick strip head starting coil non-splitting automatic identification and information transmission method Download PDFInfo
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Abstract
The present invention provides a cold-rolled thick strip head starting coil non-splitting automatic identification and information transmission method. The method comprises the steps of (1) reading temporary memory data files of a downstream machine steel coil rolling mill L1 system; (2) determining that shutdown starting first coil downstream process flow is a continuous annealing process; (3) determining that the starting first coil is provided with a sleeve, wherein automatic coil discharge cannot be carried out for continuous annealing throwing small coils without the sleeve; (4) determining that theoretical weight of the starting first roll satisfies the downstream process requirement, T>=6t; (5) determining that a downstream machine coil is the starting coil; (6) determining that the starting coil is not splitted; (7) determining that the starting coil is started by using a thick strip head; and (8) determining that the starting first coil is already changed to a target thickness from the thick strip head. Labor intensity of operators is reduced, and reliability of starting coil non-splitting information transmission is ensured.
Description
Technical field:
The present invention relates to a kind of cold rolling thicker strip head and start the method that not bundling identifies automatically and information is transmitted, particularly relate to one and be applicable to cold continuous rolling ultra-thin gauge rolling, from coil of strip information automatic decision, transmission of angle, coil of strip judges to identify that under milling train, machine coil of strip starts the technology of not bundling as milling train thicker strip head, belongs to steel rolling process, Computer Control Technology field by process conditions and information data analysis automatically.
Background technology:
For reducing cold rolling process thin material rolling thick-walled sleeve turnover cost and cold rolling useless fall, propose cold continuous rolling thicker strip head and start the most normal production run regardless of rouleau, milling train thicker strip head is started the unqualified thickness lattice strip steel produced and changes the thinking being thrown tail by next procedure unit.Conventional thicker strip head starts not bundling and judges to be identified by artificial cognition, general processing method is: under coil of strip after machine, operative employee marks " mill star-up not bundling " in coil of strip outer ring with chalk, and searches calibrator thickness curve thickness and be not inconsistent corresponding length and be also labeled in coil of strip surface.Continuous annealing unit is not inconsistent the coil diameter of correspondence by operative employee at steel coil end-face manual measurement thickness, determines throwing tail external diameter.
Conventional method exist deficiency: 1, artificial markup information easily at steel coil handling, transport and open and bag checking process is damaged or loses.2, there is artificial omission, the phenomenon of mistake mark.3, manual measurement external diameter is owing to cannot accurately learn the position of thickness correspondence up to standard, and for guaranteeing that throwing tail safety coiling directly goes to big orientation measurement, useless time fall increases.
Chinese patent (application number: 201410048854.7) " tandem mills starts the control method regardless of rouleau " have employed by whether monitoring outgoing gauge in real time meets preset thickness, when reaching preset thickness according to outlet strip steel linear velocity V in this moment and coiling machine motor rotary speed N, calculate the coil of strip coil diameter of current time coiling machine coiling, and using this coil diameter as " virtual sleeve " coil diameter D0.This control method cannot be embodied as at the scene, and concrete reason is as follows:
1, milling train outlet calibrator just possesses the function that thickness monitors in real time and measures when unit operation, therefore is monitored in real time by thickness and cannot judge that the rolling monitored in real time volume is to start volume or normally roll volume.And roll normally and roll up owing to crossing weld seam lifting speed, the most also there is the belt steel thickness of certain length by a small margin beyond preset thickness scope.Therefore the control method of this invention can cause all volumes that cold rolling mill produces, " virtual sleeve " coil diameter D0 all can be forecast.
2, due to produced on-site, the various reasons of control, the possibility repeatedly started is there is in cold rolling mill group in a coiled strip steel, by the control method of this invention, multiple " virtual sleeve " coil diameter D0 can be produced for this situation, rear road which D0 of unit is to throw tail to control needs, throws tail to rear road unit and makes risk.
3, milling train thicker strip head start-up course is the process that a Dynamic Rolling Process is unstable, and it is during thickness changes, and there is certain dot thickness instantaneous and reaches to set the situation of thickness range, but its certain length belt steel thickness subsequently does not still reach setting thickness range.The control method of this invention does not accounts for how removing the thickness point of this instantaneous satisfied requirement, as used this instantaneous point to calculate " virtual sleeve " coil diameter D0 throwing tail internal diameter as lower operation, then descends operation to produce and there is bigger risk.
4, the lower operation of tandem mills is numerous, even directly output finished product, has throwing tail function through further investigation only continuous annealing unit, and finished product does not allows to start not bundling.This invention does not judge lower operation, and milling train cannot be implemented.
Summary of the invention
It is an object of the invention to provide for the problem of above-mentioned existence a kind of cold rolling thicker strip head to start not bundling automatically identify and the method for information transmission, reduce operative employee's labor intensity, it is ensured that start the reliability spread regardless of volume information.
Above-mentioned purpose is achieved through the following technical solutions:
Cold rolling thicker strip head starts not bundling and automatically identifies and the method for information transmission, and the method comprises the steps:
(1) lower machine coil of strip milling train L1 system interim internal storage data file is read；
(2) judging that shutting down the startup lower operation of head volume flows to move back operation as connecting, in general cold continuous rolling later process, only supplied materials need to be thrown the technological requirement of tail by continuous annealing unit；
(3) judge to start first winding sleeve, do not have sleeve even to move back throwing rouleau and cannot automatically unload volume；
(4) judge that starting head volume theoretical weight meets lower procedure calls, T >=6t；
(5) judge that lower machine volume is as starting volume: analyze lower machine coil of strip speed data, if lowest manufactured speed is from the beginning of 0mpm, then judge that this volume starts head volume as shutting down；If the point that this volume has many places speed of production to be 0mpm, then with last speed for 0mpm point as starting point, resolve data starting point as follow-up (6)～(8) step；
(6) judge to start not bundling: resolving startup head volume speed is 0～500 meter of length data after 0mpm point, it is judged that condition is as follows:
Li+1> Li Formula 1
Then judge that not bundling is rolled up in startup；
(7) judge to use thicker strip head to start: resolving and start head 0～500 meter of thickness data of volume, concrete grammar is as follows:
There is hSurveyThe point of >=0.5mm, and hSurvey-hMesh>=0.1mm, continuity point >=5 point；
Meet above-mentioned condition, it is judged that start volume and use thicker strip head to start；
(8) judge that starting head volume fades to target thickness from thicker strip head: resolving and start head 0～500 meter of thickness data of volume, concrete grammar is as follows:
HMesh-| hMesh* 3%|≤hSurvey≤ hMesh+ | hMesh* 3%| formula 2
And meet formula measure point continuously >=5 points；
Meet above-mentioned condition, it is judged that start and roll up non-bundling and complete to fade to target thickness from thicker strip head, and extract first corresponding coil diameter D of continuity point meeting condition0, length L0, generate " starting not bundling " mark, be transferred to lower operation L2 system, calculate for automatically throwing tail.
Described cold rolling thicker strip head starts not bundling and automatically identifies and the method for information transmission, and the Rule of judgment that judging described in step (3) starts first winding sleeve is as follows: sleeve code SlvKind ≠ 0.
Beneficial effect:
The present invention by milling train, continuous annealing unit manufacturing technique requirent and the interim internal storage data of milling train L1 system as data source, the process characteristic that there is thicker strip head is started in conjunction with cold continuous rolling Thin Specs, target thickness data parsing is faded to, it is achieved under milling train, whether machine coil of strip is for starting not bundling by thicker strip head data and thicker strip head.Can realize starting not bundling by this technology and automatically identify that the computer system automatization with information transmits, it is to avoid due to artificial data circulation error or mark is omitted, carelessness, cause even moving back operation and automatically throw tail and escape magnetic tape trailer.
Relative to conventional treatment mode, meaning of the present invention is mainly reflected in the following aspects:
(1) general milling train L1 system does not designs identification, extraction and analysis coil of strip a certain moment or the thickness in a certain period of moment and the function of coil diameter data automatically.Use tandem mills thicker strip head to start not bundling automatically to identify and message automatic transmission technology, can realize starting not bundling thickness and not be inconsistent automatically extracting of the length coil diameter with correspondence.
(2) artificial cognition, mark start regardless of volume information, and labor intensity is big, easily makes mistakes, omits, and data locking precision is low；Use tandem mills to start not bundling automatically to identify and information acquiring technology, reduce labor strength, and can realize throwing the precise positioning of tail coil diameter, thus reduce continuous annealing unit and throw useless fall of tail length minimizing.
The method of the present invention is in the case of not increasing any equipment investment, utilizes existing L1, L2 system, by process conditions and data analysis, it is achieved tandem mills thicker strip head starts not bundling and automatically identifies and message automatic transmission.The method advantageously reduces productive manpower cost and cold rolling useless fall.
Accompanying drawing explanation
Fig. 1 case thicker strip head starts not bundling 5 rack outlet thickness change schematic diagram.
Fig. 2 case thicker strip head starts not bundling each gantry speed change schematic diagram.
Fig. 3 present invention starts transmits schematic diagram regardless of coil volume information collection.
Fig. 4 present invention contrasts milling train routine and starts a point rouleau flow chart.
Fig. 5 thicker strip of the present invention head starts not Split swirl journey figure.
Detailed description of the invention
The present embodiment is with Baosteel 1420 cold rolling mill 5 frame acid Continuous mill train as objective for implementation.It is continuous annealing unit feed that hard volume is rolled in sour rolling mill production, and two units are the relation of upper and lower operation.
With the on-the-spot practical application example of different steel grade specifications, different Starting mode, the present invention will be described below.Use tandem mills to start not bundling automatically to identify and information acquiring technology.
Embodiment one
Cold drawing thicker strip starts not bundling for the first time, and milling train output specification is 0.20*920mm, generation coil of strip number after shearing after rolling: 10232567900, and corresponding hot rolling number 84085020400, steel grade is T4.Being embodied as step is:
(1) data are read
After volume 10232567900 shearing, this volume thickness data uploaded by 5 rack outlet calibrators, and this volume speed data uploaded by 5 rack outlet tachymeters, and coiling machine motor encoder uploads this coil coil-diameter and length data.This technology reads entitled 84085020400 data of file in milling train L1 system interim internal memory Lable_3.Coil of strip information gathering is transmitted as shown in Figure 2.
(2) under this volume, process code is C112, flows to as even moving back direction.
(3) this volume sleeve code SlvKind=2, uses thick-walled sleeve；
(4) this volume theoretical weight is 14.46t, more than 6t.
(5) according to this volume 5 gantry speed speed data uploaded, the 35th speed record spot speed of this volume is 0mpm.Judge that this volume is as starting volume.After 35th speed record point, speed is all higher than 0mpm.
(6) according to this volume length data uploaded, it is judged that the length value of this volume each point meets Li+1>Li.Then non-bundling after this volume initialization.
1) thickness data uploaded according to calibrator, this volume speed be 0mpm after 0～500m in thickness measurements measuring point from 59～70, continuous 12 dot thickness values are respectively 0.506mm, 0.501mm, 0.501mm, 0.508mm, 0.506mm, 0.505mm, 0.502mm, 0.501mm, 0.501mm, 0.505mm, 0.503mm, 0.506mm and are both greater than 0.5mm, this volume target thickness is 0.20mm, therefore this 12 dot thickness measured value and target thickness difference are both greater than 0.1mm, it is determined that this volume is that thicker strip head starts.
2) thickness data uploaded according to calibrator, this volume continuous 5 from 105～109 meets formula 3 requirement.Read one-tenth-value thickness 1/10 measuring point 110 point, the strip length L that this point is corresponding0For 164m, corresponding coil of strip diameter D0For 641.8mm.Milling train L2 system start-up not bundling determining program, automatically generates " starting not bundling " mark.And by L0、D0, " starting not bundling " mark is automatically transmitted to even move back L2 system.
Embodiment two
Hot plate thicker strip starts not bundling for the first time, and milling train output specification is 0.20*1048mm, generation coil of strip number after shearing after rolling: 10233959000, and corresponding hot rolling number 86925700200, steel grade is T4.Being embodied as step is:
(1) data are read
After volume 10233959000 shearing, this volume thickness data uploaded by 5 rack outlet calibrators, and this volume speed data uploaded by 5 rack outlet tachymeters, and coiling machine motor encoder uploads this coil coil-diameter and length data.This technology reads entitled 86925700200 data of file in milling train L1 system interim internal memory Lable_3.Coil of strip information gathering is transmitted as shown in Figure 2.
(2) under this volume, process code is C112, flows to as even moving back direction.
(3) this volume sleeve code SlvKind=2, uses thick-walled sleeve；
(4) this volume theoretical weight is 18.14t, more than 6t.
(5) according to this volume 5 gantry speed speed data uploaded, the 21st speed record spot speed of this volume is 0mpm.Judge that this volume is as starting volume.After 21st speed record point, 5 gantry speed are all higher than 0mpm.
(6) according to this volume length data uploaded, it is judged that the length value of this volume each point meets Li+1>Li.Then non-bundling after this volume initialization.
(7) thickness data uploaded according to calibrator, this volume speed be 0mpm after 0～500m in thickness measurements measuring point from 22～54, continuous 33 dot thickness values are all that 0.602mm is both greater than 0.5mm, this volume target thickness is 0.20mm, therefore this 12 dot thickness measured value and target thickness difference are both greater than 0.1mm, it is determined that this volume is that thicker strip head starts.
(8) thickness data uploaded according to calibrator, this volume continuous 5 from 89～93 meets formula 3 requirement.Read one-tenth-value thickness 1/10 measuring point 94 point, the strip length L that this point is corresponding0For 129m, corresponding coil of strip diameter D0For 693.1mm.Milling train L2 system start-up not bundling determining program, automatically generates " starting not bundling " mark.And by L0、D0, " starting not bundling " mark is automatically transmitted to even move back L2 system.
Embodiment three
Hot plate thicker strip head restarting not bundling, milling train output specification is 0.356*1013mm, generation coil of strip number after shearing after rolling: 10233213200, and corresponding hot rolling number 84622130101, steel grade is SPCC.Being embodied as step is:
(1) data are read
After volume 10233213200 shearing, this volume thickness data uploaded by 5 rack outlet calibrators, and this volume speed data uploaded by 5 rack outlet tachymeters, and coiling machine motor encoder uploads this coil coil-diameter and length data.This technology reads entitled 84622130101 data of file in milling train L1 system interim internal memory Lable_3.Coil of strip information gathering is transmitted as shown in Figure 2.
(2) under this volume, process code is C112, flows to as even moving back direction.
(3) this volume sleeve code SlvKind=2, uses thick-walled sleeve；
(4) this volume theoretical weight is 13.46t, more than 6t.
(5) according to this volume 5 gantry speed speed data uploaded, the 21st speed record point of this volume, the 98th speed record spot speed is 0mpm.Judge that this volume is as starting volume.After 98th speed record point, 5 gantry speed are all higher than 0mpm.
(6) according to this volume length data uploaded, it is judged that the length value of this volume each point meets Li+1>Li.Then non-bundling after this volume initialization.
(7) thickness data uploaded according to calibrator, the 21st speed point speed of this volume be 0mpm after 0～500m in thickness measurements measuring point from 22～82, continuous 61 dot thickness values are all that 0.602mm is both greater than 0.5mm, this volume target thickness is 0.356mm, therefore this 12 dot thickness measured value and target thickness difference are both greater than 0.1mm.The 98th speed point speed of this volume be 0mpm after 0～500m in thickness measurements measuring point from 99～112, continuous 14 dot thickness values are all that 0.602mm is both greater than 0.5mm, this volume target thickness is 0.356mm, therefore this 12 dot thickness measured value and target thickness difference are both greater than 0.1mm, it is determined that this volume is that 2 thicker strip heads start.
(8) thickness data uploaded according to calibrator, this volume continuous 5 from 162～166 meets formula 3 requirement.Read the strip length L that one-tenth-value thickness 1/10 measuring point 167 is corresponding0For 296m, corresponding coil of strip diameter D0For 799.8mm.Milling train L2 system start-up not bundling determining program, automatically generates " starting not bundling " mark.And by L0、D0, " starting not bundling " mark is automatically transmitted to even move back L2 system.
Embodiment four
Hot plate thicker strip starts not bundling for the first time, and milling train output specification is 0.281*728mm, generation coil of strip number after shearing after rolling: 10233090600, and corresponding hot rolling number 84489020201, steel grade is T4.Being embodied as step is:
(1) data are read
After volume 10233090600 shearing, this volume thickness data uploaded by 5 rack outlet calibrators, and this volume speed data uploaded by 5 rack outlet tachymeters, and coiling machine motor encoder uploads this coil coil-diameter and length data.This technology reads entitled 84489020201 data of file in milling train L1 system interim internal memory Lable_3.Coil of strip information gathering is transmitted as shown in Figure 2.
(2) under this volume, process code is C112, flows to as even moving back direction.
(3) this volume sleeve code SlvKind=2, uses thick-walled sleeve；
(4) this volume theoretical weight is 12.35t, more than 6t.
(5) according to this volume 5 gantry speed speed data uploaded, the 8th speed record spot speed of this volume is 0mpm.Judge that this volume is as starting volume.After 8th speed record point, 5 gantry speed are all higher than 0mpm.
(6) according to this volume length data uploaded, it is judged that the length value of this volume each point meets Li+1>Li.Then non-bundling after this volume initialization.
(7) thickness data uploaded according to calibrator, this volume speed be 0mpm after 0～500m in thickness measurements measuring point from 9～48, continuous 40 dot thickness values are all that 0.602mm is both greater than 0.5mm, this volume target thickness is 0.281mm, therefore this 12 dot thickness measured value and target thickness difference are both greater than 0.1mm, it is determined that this volume is that thicker strip head starts.
(1) thickness data uploaded according to calibrator, this volume continuous 5 from 81～85 meets formula 3 requirement.Read one-tenth-value thickness 1/10 measuring point 86 point, the strip length L that this point is corresponding0For 252m, corresponding coil of strip diameter D0For 668.1mm.Milling train L2 system start-up not bundling determining program, automatically generates " starting not bundling " mark.And by L0、D0, " starting not bundling " mark is automatically transmitted to even move back L2 system.
Embodiment five
Hot plate thicker strip starts not bundling for the first time, and milling train output specification is 0.180*836mm, generation coil of strip number after shearing after rolling: 10234662600, and corresponding hot rolling number 86323140801, steel grade is T4.Being embodied as step is:
(1) data are read
After volume 10234662600 shearing, this volume thickness data uploaded by 5 rack outlet calibrators, and this volume speed data uploaded by 5 rack outlet tachymeters, and coiling machine motor encoder uploads this coil coil-diameter and length data.This technology reads entitled 86323140801 data of file in milling train L1 system interim internal memory Lable_3.Coil of strip information gathering is transmitted as shown in Figure 2.
(2) under this volume, process code is C112, flows to as even moving back direction.
(3) this volume sleeve code SlvKind=2, uses thick-walled sleeve；
(4) this volume theoretical weight is 13.02t, more than 6t.
(5) according to this volume 5 gantry speed speed data uploaded, the 130th speed record spot speed of this volume is 0mpm.Judge that this volume is as starting volume.After 131st speed record point, 5 gantry speed are all higher than 0mpm.
(6) according to this volume length data uploaded, it is judged that the length value of this volume each point meets Li+1>Li.Then non-bundling after this volume initialization.
(7) thickness data uploaded according to calibrator, this volume speed be 0mpm after 0～500m in thickness measurements measuring point from 131～167, continuous 37 dot thickness values are all that 0.602mm is both greater than 0.5mm, this volume target thickness is 0.281mm, therefore this 12 dot thickness measured value and target thickness difference are both greater than 0.1mm, it is determined that this volume is that thicker strip head starts.
(8) thickness data uploaded according to calibrator, this volume continuous 5 from 202～206 meets formula 3 requirement.Read one-tenth-value thickness 1/10 measuring point 207 point, the strip length L that this point is corresponding0For 407m, corresponding coil of strip diameter D0For 749.4mm.Milling train L2 system start-up not bundling determining program, automatically generates " starting not bundling " mark.And by L0、D0, " starting not bundling " mark is automatically transmitted to even move back L2 system.
So far complete tandem mills thicker strip head to start not bundling and automatically identify and message automatic transmission.
The present invention came into effect at Baosteel 1420 cold rolling mill 5 frame acid Continuous mill train from June, 2013, the mill star-up problem such as wrong mark, spill tag, loss regardless of volume information is avoided by this, it is effectively improved thicker strip head to start not bundling thickness and be not inconsistent corresponding length, coil diameter precision, and the labor intensity of operative employee can be greatly reduced, to a certain degree reduce cold rolling useless fall..Implement before and after's Data Comparison by the present invention, monthly can retrieve sour rolling mill waster 101.1 tons, create direct economic benefit 100,000 yuan.On-the-spot ruuning situation shows that the method has the highest safety and reliability, it is ensured that the continuous production capacity of unit, has the highest promotional value.
Claims (2)
1. cold rolling thicker strip head starts the method that not bundling identifies automatically and information is transmitted, and it is characterized in that: the method comprises the steps:
(1) lower machine coil of strip milling train L1 system interim internal storage data file is read；
(2) judge that shutting down the startup lower operation of head volume flows to move back operation as connecting；
(3) judge to start first winding sleeve, do not have sleeve even to move back throwing rouleau and cannot automatically unload volume；
(4) judge that starting head volume theoretical weight meets lower procedure calls, T >=6t；
(5) judge that lower machine volume is as starting volume: analyze lower machine coil of strip speed data, if lowest manufactured speed is from the beginning of 0mpm, then judge that this volume starts head volume as shutting down；If the point that this volume has many places speed of production to be 0mpm, then with last speed for 0mpm point as starting point, resolve data starting point as follow-up (6)～(8) step；
(6) judge to start not bundling: resolving startup head volume speed is 0～500 meter of length data after 0mpm point, it is judged that condition is as follows:
Li+1> Li Formula 1
Then judge that not bundling is rolled up in startup；
(7) judge to use thicker strip head to start: resolving and start head 0～500 meter of thickness data of volume, concrete grammar is as follows:
There is hSurveyThe point of >=0.5mm, and hSurvey-hMesh>=0.1mm, continuity point >=5 point；
Meet above-mentioned condition, it is judged that start volume and use thicker strip head to start；
(8) judge that starting head volume fades to target thickness from thicker strip head: resolving and start head 0～500 meter of thickness data of volume, concrete grammar is as follows:
HMesh-| hMesh* 3%|≤hSurvey≤ hMesh+ | hMesh* 3%| formula 2
And meet formula measure point continuously >=5 points；
Meet above-mentioned condition, it is judged that start and roll up non-bundling and complete to fade to target thickness from thicker strip head, and extract first corresponding coil diameter D of continuity point meeting condition0, length L0, generate " starting not bundling " mark, be transferred to lower operation L2 system, calculate for automatically throwing tail.
2. the cold rolling thicker strip head described in starts not bundling and automatically identifies and the method for information transmission, it is characterized in that: the Rule of judgment that judging described in step (3) starts first winding sleeve is as follows: sleeve code SlvKind ≠ 0.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111753256A (en) * | 2019-03-28 | 2020-10-09 | 宝山钢铁股份有限公司 | Data alignment method based on length position of cold-rolled steel coil |
| CN114054512A (en) * | 2020-08-03 | 2022-02-18 | 上海梅山钢铁股份有限公司 | Pickling plate thickness data home-entry method |
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| JPH11267703A (en) * | 1998-03-18 | 1999-10-05 | Sumitomo Metal Ind Ltd | Method for continuously cold-rolling small-diameter wire |
| JP2007160395A (en) * | 2005-12-16 | 2007-06-28 | Nippon Steel Corp | Cold tandem rolling method of high-tensile steel |
| CN101032725A (en) * | 2006-03-06 | 2007-09-12 | 上海宝信软件股份有限公司 | Automatic ribbon lap method of cold rolling serial production line |
| CN101862751A (en) * | 2010-05-18 | 2010-10-20 | 上海六晶金属科技有限公司 | Cold rolling method for tungsten-copper alloy sheet |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1053199A (en) * | 1989-11-29 | 1991-07-24 | Aeg西屋工业自动化公司 | A kind of rolling method with rolled piece of qualified head and afterbody |
| JPH11267703A (en) * | 1998-03-18 | 1999-10-05 | Sumitomo Metal Ind Ltd | Method for continuously cold-rolling small-diameter wire |
| JP2007160395A (en) * | 2005-12-16 | 2007-06-28 | Nippon Steel Corp | Cold tandem rolling method of high-tensile steel |
| CN101032725A (en) * | 2006-03-06 | 2007-09-12 | 上海宝信软件股份有限公司 | Automatic ribbon lap method of cold rolling serial production line |
| CN101862751A (en) * | 2010-05-18 | 2010-10-20 | 上海六晶金属科技有限公司 | Cold rolling method for tungsten-copper alloy sheet |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111753256A (en) * | 2019-03-28 | 2020-10-09 | 宝山钢铁股份有限公司 | Data alignment method based on length position of cold-rolled steel coil |
| CN114054512A (en) * | 2020-08-03 | 2022-02-18 | 上海梅山钢铁股份有限公司 | Pickling plate thickness data home-entry method |
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| CN105817484B (en) | 2018-06-26 |
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