CN102078880A - Cold rolling unit system and implementation method thereof - Google Patents
Cold rolling unit system and implementation method thereof Download PDFInfo
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- CN102078880A CN102078880A CN2010105573976A CN201010557397A CN102078880A CN 102078880 A CN102078880 A CN 102078880A CN 2010105573976 A CN2010105573976 A CN 2010105573976A CN 201010557397 A CN201010557397 A CN 201010557397A CN 102078880 A CN102078880 A CN 102078880A
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Abstract
The invention relates to the field of strip steel processing, and discloses a cold rolling unit system and an implementation method thereof. According to the cold rolling unit system and the implementation method thereof provided by the invention, when a first working roll of a first roll system is used to phi370 millimeters and cannot be reused, the first working roll can be subjected to secondary quenching, and a reformed second roll system is used as a second working roll for continuous operation. When a second middle roll of the reformed second roll system is used to phi450 millimeters and cannot be reused, the second middle roll can be subjected to secondary quenching, and the first roll system is used as a first middle roll for continuous operation. When the diameter usage range of the working roll is enlarged to be between 400 and 340 millimeters and the usage range of the middle roll is enlarged to be between 485 and 415 millimeters, the service lives of the working roll and the middle roll are prolonged, the old is changed into the new, and the production cost is reduced.
Description
Technical field
The present invention relates to be with the steel manufacture field, in particular a kind of cold-rolling mill group system and its implementation.
Background technology
Along with the rapid development of modern industry, fields such as industry, building and civilian household electrical appliances flourish, increasing to the product demand of cold-strip steel.And the cold rolling unit use that is used to process is more and more.Cold rolling unit to the processing of band steel mainly by working roll, so to the wearing and tearing maximum of working roll.
But, its working roll utilization rate of the cold rolling unit of prior art is not high, the diameter of existing working roll may wear to the 370mm(millimeter) just can not re-use, just can not re-use when promptly the working roll scope of application of prior art is φ 400/ φ 370mm, can only scrap processing.Like this, along with the passing of production time, the working roll that need scrap is more and more, and processing cost also can't reduce.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of cold-rolling mill group system and its implementation, utilizing again, prolonged the service life of working roll and intermediate calender rolls with first working roll of crossing, reusing becomes new, has reduced production cost.
Technical scheme of the present invention is as follows:
A kind of cold-rolling mill group system wherein, comprises that the first cover roller system and the second cover roller of active and standby usefulness are each other, and is first roll chock, second roll chock that is used with the described first cover roller system, the second cover roller respectively; The described first cover roller system is installed on the frame by first roll chock, and the described second cover roller system is installed on the frame by second roll chock;
The described first cover roller system comprises two first working rolls, two first intermediate calender rolls, two first backing rolls; Be symmetricly set on respectively on the described frame by described first roll chock;
The described second cover roller system comprises two second working rolls, two second intermediate calender rolls, two second backing rolls; Be symmetricly set on respectively on the described frame by described second roll chock;
Wherein, the diameter of described first working roll, first intermediate calender rolls is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described second working roll, second intermediate calender rolls is respectively: 450 millimeters of 370-340 millimeter, 485-.
Described cold-rolling mill group system, wherein, described second working roll is by carrying out secondary quenching with first working roll of crossing, and quenching hardness is the same with former first working roll with the degree of depth, does not influence to produce to use, and dwindles the roller footpath and utilizes again.
Described cold-rolling mill group system, wherein, described first intermediate calender rolls is by carrying out secondary quenching with second intermediate calender rolls of crossing, and quenching hardness is the same with former second intermediate calender rolls with the degree of depth, does not influence to produce to use, and dwindles the roller footpath and utilizes again.
Described cold-rolling mill group system, wherein, the diameter range of described first backing roll is: the 1180-1250 millimeter.
Described cold-rolling mill group system, wherein, the diameter range of described second backing roll is: the 1170-1240 millimeter.
A kind of cold-rolling mill group system implementation method wherein, comprises step:
A, the setting first cover roller system and the second cover roller of active and standby usefulness each other are that reaching is first roll chock, second roll chock that is used with the described first cover roller system, the second cover roller respectively; The described first cover roller system is installed on the frame by first roll chock, and the described second cover roller system is installed on the frame by second roll chock;
The described first cover roller system is set comprises two first working rolls, two first intermediate calender rolls, two first backing rolls; Be symmetricly set on respectively on the described frame by described first roll chock;
The described second cover roller system comprises two second working rolls, two second intermediate calender rolls, two second backing rolls; Be symmetricly set on respectively on the described frame by described second roll chock;
Wherein, the diameter of described first working roll, first intermediate calender rolls is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described second working roll, second intermediate calender rolls is respectively: 450 millimeters of 370-340 millimeter, 485-;
B, will carry out secondary quenching, and dwindle the roller footpath and make second working roll again with first working roll of crossing;
C, will carry out secondary quenching, and dwindle the roller footpath and make first intermediate calender rolls again with second intermediate calender rolls of crossing.
Beneficial effect: a kind of cold-rolling mill group system provided by the present invention and its implementation, owing to adopted first working roll when the first cover roller system to use φ 370mm time spent again, just can carry out secondary quenching, use the improved second cover roller system and work on as second working roll to first working roll.And use φ 450mm time spent again when second intermediate calender rolls of the second cover roller system, and just can carry out secondary quenching to second intermediate calender rolls, using the first cover roller is to work on as first intermediate calender rolls.Be that the working roll scope of application is expanded as 400～340mm, the intermediate calender rolls scope of application is expanded as 485～415mm; So just prolonged the service life of working roll and intermediate calender rolls, reusing becomes new, has reduced production cost.
And second work roll diameter of the improved second cover roller system reduces, and roll-force and moment are reduced, and roll elastic flattening reduces, and can bear and roll the big roll-force of Bao Shigeng, has increased reduction in pass.
Description of drawings
Fig. 1 is that the cold-rolling mill group system of the embodiment of the invention is installed the first cover roll system structure schematic diagram.
Fig. 2 is second cover roller system and the adaptive roll chock structural representation of the embodiment of the invention.
Fig. 3 is the universal-joint spindle structural representation that need change when using the second cover roller to be of the embodiment of the invention.
The specific embodiment
A kind of cold-rolling mill group system provided by the present invention and its implementation, clearer, clear and definite for making purpose of the present invention, technical scheme and effect, below with reference to accompanying drawing and give an actual example that the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
A kind of cold-rolling mill group system of the embodiment of the invention, as shown in Figure 1, comprise frame 900, and be fixed on being used on the described frame 900 roll chock 910 of each roll be installed, its also comprise each other the first cover roller of active and standby usefulness be 100(as shown in Figure 1) and second overlap roller be 200(as shown in Figure 2).
As shown in Figure 1, the described first cover roller is 100 to be installed on the frame 900 by a pair of first roll chock 110 adaptive with it.The same described second cover roller is 200 to be provided with a pair of second adaptive with it roll chock 210 specially, and as shown in Figure 2, the described second cover roller is 200 to be installed on the frame 900 by second roll chock 210.
Wherein, as shown in Figure 1, the described first cover roller is 100 to comprise two first working rolls 101 and 102, two first intermediate calender rolls 103 and 104, two first backing rolls 105 and 106; Be symmetricly set on respectively on the described frame by described first roll chock 110;
Equally, as shown in Figure 2, the described second cover roller is 200 to comprise two second working rolls 201 and 202, two second intermediate calender rolls 203 and 204, two second backing rolls 205 and 206; Be used for being symmetricly set on described frame 900 respectively by described second roll chock 210; Promptly when the first cover roller be after 100 usefulness are crossed, can second overlap roller be 200 by described second roll chock 210 respectively symmetry be installed in described frame 900, work on.
Among the present invention, described first working roll 101 and 102 diameter range are preferably the 400-370mm(millimeter), first intermediate calender rolls 103 and 104 diameter range are preferably 450-415mm, and first backing roll 105 and 106 diameter range are preferably: 1180-1250mm;
And the diameter range of described second working roll 201 and 202 is preferably the 370-340 millimeter, second intermediate calender rolls 203 and 204 diameter range be preferably: 450 millimeters of 485-, second backing roll 205 and 206 diameter range are preferably: 1170-1240mm.
Like this, described second working roll 201 and 202 just can be by carrying out secondary quenching with first working roll of crossing 101 and 102, outside guaranteeing that its working roll body of roll is constant, other place will be done accordingly with a tree name second roll chock 210 and be dwindled, dwindling the roller footpath utilizes again, quenching hardness is the same with former first working roll with the degree of depth, does not influence to produce to use.
And described first intermediate calender rolls 103 and 104 just can dwindle the roller footpath to utilize again by carrying out secondary quenching with second intermediate calender rolls of crossing 203 and 204, and quenching hardness is the same with former second intermediate calender rolls with the degree of depth, does not influence to produce to use.
For example, in the specific implementation, because its working roll utilization rate of cold rolling unit of prior art is not high, the diameter of existing working roll may wear to the 370mm(millimeter) just can not re-use, the present invention just adopts two cover rollers systems and deposits use by transforming the back milling train: adopt when the first cover roller be 100 first working roll (as shown in Figure 1 101 and 102, its diameter range is 400-370mm, use φ 370mm time spent again, do not scrap, and directly first working roll 101 and 102 is carried out secondary quenching, using the improved second cover roller and be 200 works on as second working roll (as shown in Figure 2 201 and 202, its diameter range is the 370-340 millimeter).Be that the working roll scope of application is expanded as 400～340mm, like this, can prolong 30 millimeters of service lifes of working roll, reusing becomes new, has reduced production cost.
And when the second cover roller be 200 second intermediate calender rolls (as shown in Figure 2 203 and 204, diameter range is 450 millimeters of 485-) use φ 450mm time spent again, do not do to scrap yet, directly second intermediate calender rolls 203 and 204 is carried out secondary quenching, using the first cover roller and be 100 works on as first intermediate calender rolls (as shown in Figure 1 103 and 104, its diameter range is 450-415mm).Equally, the intermediate calender rolls scope of application is expanded as 485～415mm; In the same like this service life that prolongs intermediate calender rolls, reusing becomes new, has reduced production cost.
Therefore, the improved second cover roller is that 200 second work roll diameter has reduced 30mm, the second intermediate calender rolls enlarged diameter 35mm, if being two cover rollers systems and depositing, the first cover roller system and the second cover roller use then the working roll roller scope of application directly is increased to: φ 340 ~ φ 400mm, the scope of application in intermediate calender rolls roller footpath is increased to: φ 415 ~ φ 480mm, the increasing of roller footpath scope has just prolonged the service life of roll, reaches to reduce the purpose that the roller consumption reduces production cost.
The improved second cover roller is 200, its working roll minimum can use φ 340mm, the backing roll minimum can use the original minimum of φ 1170mm(can only use φ 1180mm), intermediate calender rolls is when using minimum diameter φ 450mm, can also use with the first cover roller system that does not transform, all increased the service life that is equivalent to intermediate calender rolls and backing roll like this.And second work roll diameter of the improved second cover roller system reduces, and roll-force and moment are reduced, and roll elastic flattening reduces, and can bear to roll the big roll-force of Bao Shigeng, has increased reduction in pass.
Promptly the second cover roller is that the relative first cover roller is that 100 transformation comprises:
1, the working roll footpath changes φ 370/ φ 340mm into by φ 400/ φ 370mm;
2, intermediate calender rolls roller footpath adds greatly φ 485/ φ 450mm by φ 450/ φ 415mm;
3, the backing roll footpath changes φ 1170/ φ 1240mm into by φ 1180/ φ 1250mm
Equally, also need transforming of second roll chock 210, with the second cover roller is 100 to compare, because second working roll 201 and 202 and second intermediate calender rolls 203 and 204 diameter variation, all will make again with the bearing block that working roll and intermediate calender rolls are adaptive, the rolling bearing of second working roll has reduced a specification, and intermediate calender rolls is still continued to use original rolling bearing, so that reduce the specification quantity of bearing spare part, as shown in Figure 2 210.
In addition, as shown in Figure 1, using the first cover roller is that 100 universal- joint spindle 901 and 902 be arranged in parallel.And use the second cover roller is that 200 universal-joint spindle also need be transformed, and as shown in Figure 3, because the reducing of second work roll diameter of the second cover roller system, goes up the interference of bottom spindle spindle nose when avoiding the pony roll footpath, spindle nose be staggered mutually.Referring to Fig. 3, top roll universal-joint spindle (be equivalent to Fig. 1 902) length is constant still to be 2600mm, and lower roll universal-joint spindle (quite 901 of Fig. 1) contraction in length is 2217mm.
Simultaneously, connect shaft clamping device and also need transform, because the reducing of the working roll roller footpath of the second cover roller system, the upper working rolls and lower working rolls spacing has reduced 30mm in the roll change position, so want the clamp of abutment shaft clamping device to do suitably adjustment.
And for backing roll roller of the present invention footpath, improved second roller is 200, when working roll and intermediate calender rolls roller directly be maximum: the second working roll D
Working roll=370mm; The second intermediate calender rolls D
Intermediate calender rolls=485mm
Then second backing roll roller footpath can not surpass 1240mm, surpasses the scope of application of 1240mm with the over balance cylinder.
And as working roll and intermediate calender rolls roller footpath: D
Working roll+ D
Intermediate calender rollsDuring≤845mm, the backing roll that can use big roller footpath promptly: 1250mm.As working roll and intermediate calender rolls roller footpath: D
Working roll+ D
Intermediate calender rollsDuring 〉=850mm, can use minimum support roller footpath promptly: 1160mm.
Based on the cold-rolling mill group system of the foregoing description, the embodiment of the invention also provides a kind of cold-rolling mill group system implementation method, mainly may further comprise the steps:
The first step, referring to Fig. 1 and Fig. 2, be provided with each other that the first cover roller of active and standby usefulness is that the 100 and second cover roller is 200, and be that 100, the second cover roller is 200 first roll chock 110, second roll chocks 210 that are used with the described first cover roller respectively; The described first cover roller is 100 to be installed on the frame 900 by first roll chock 110, and the described second cover roller is 200 to be installed on the frame 900 by second roll chock 210;
The described first cover roller is set is 100 and comprise two first working rolls 101 and 102, two first intermediate calender rolls 103 and 104, two first backing rolls 105 and 106; Be symmetricly set on respectively on the described frame 900 by described first roll chock 110;
The described second cover roller is 200 to comprise two second working rolls 201 and 202, two second intermediate calender rolls 203 and 204, two second backing rolls 205 and 206; Be symmetricly set on respectively on the described frame 900 by described second roll chock 210;
Wherein, the diameter of described first working roll 101 and 102, first intermediate calender rolls 103 and 104 is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described second working roll 201 and 202, second intermediate calender rolls 203 and 204 is respectively: 450 millimeters of 370-340 millimeter, 485-;
Second step, will carry out secondary quenching, and dwindle the roller footpath and make second working roll 201 and 202 again with first working roll of crossing 101 and 102;
The 3rd step, will carry out secondary quenching, and dwindle the roller footpath and make first intermediate calender rolls 103 and 104 again with second intermediate calender rolls of crossing 203 and 204.
In sum: a kind of cold-rolling mill group system provided by the present invention and its implementation, owing to adopted first working roll when the first cover roller system to use φ 370mm time spent again, just can carry out secondary quenching, use the improved second cover roller system and work on as second working roll to first working roll.And use φ 450mm time spent again when second intermediate calender rolls of the second cover roller system, and just can carry out secondary quenching to second intermediate calender rolls, using the first cover roller is to work on as first intermediate calender rolls.Be that the working roll scope of application is expanded as 400～340mm, the intermediate calender rolls scope of application is expanded as 485～415mm; So just prolonged the service life of working roll and intermediate calender rolls, reusing becomes new, has reduced production cost.
And second work roll diameter of the improved second cover roller system reduces, and roll-force and moment are reduced, and roll elastic flattening reduces, and can bear and roll the big roll-force of Bao Shigeng, has increased reduction in pass.
Should be understood that application of the present invention is not limited to above-mentioned giving an example, for those of ordinary skills, can be improved according to the above description or conversion that all these improvement and conversion all should belong to the protection domain of claims of the present invention.
Claims (6)
1. a cold-rolling mill group system is characterized in that, comprises that the first cover roller system and the second cover roller of active and standby usefulness are each other, and is first roll chock, second roll chock that is used with the described first cover roller system, the second cover roller respectively; The described first cover roller system is installed on the frame by first roll chock, and the described second cover roller system is installed on the frame by second roll chock;
The described first cover roller system comprises two first working rolls, two first intermediate calender rolls, two first backing rolls; Be symmetricly set on respectively on the described frame by described first roll chock;
The described second cover roller system comprises two second working rolls, two second intermediate calender rolls, two second backing rolls; Be symmetricly set on respectively on the described frame by described second roll chock;
Wherein, the diameter of described first working roll, first intermediate calender rolls is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described second working roll, second intermediate calender rolls is respectively: 450 millimeters of 370-340 millimeter, 485-.
2. cold-rolling mill group system according to claim 1 is characterized in that, described second working roll dwindles the roller footpath and utilizes again by carrying out secondary quenching with first working roll of crossing.
3. cold-rolling mill group system according to claim 1 is characterized in that, described first intermediate calender rolls dwindles the roller footpath and utilizes again by carrying out secondary quenching with second intermediate calender rolls of crossing.
4. cold-rolling mill group system according to claim 1 is characterized in that, the diameter range of described first backing roll is: the 1180-1250 millimeter.
5. cold-rolling mill group system according to claim 1 is characterized in that, the diameter range of described second backing roll is: the 1170-1240 millimeter.
6. a cold-rolling mill group system implementation method is characterized in that, comprises step:
A, the setting first cover roller system and the second cover roller of active and standby usefulness each other are that reaching is first roll chock, second roll chock that is used with the described first cover roller system, the second cover roller respectively; The described first cover roller system is installed on the frame by first roll chock, and the described second cover roller system is installed on the frame by second roll chock;
The described first cover roller system is set comprises two first working rolls, two first intermediate calender rolls, two first backing rolls; Be symmetricly set on respectively on the described frame by described first roll chock;
The described second cover roller system comprises two second working rolls, two second intermediate calender rolls, two second backing rolls; Be symmetricly set on respectively on the described frame by described second roll chock;
Wherein, the diameter of described first working roll, first intermediate calender rolls is respectively: 400-370 millimeter, 450-415 millimeter; The diameter of described second working roll, second intermediate calender rolls is respectively: 450 millimeters of 370-340 millimeter, 485-;
B, will carry out secondary quenching, and dwindle the roller footpath and make second working roll again with first working roll of crossing;
C, will carry out secondary quenching, and dwindle the roller footpath and make first intermediate calender rolls again with second intermediate calender rolls of crossing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010557397 CN102078880B (en) | 2010-11-24 | 2010-11-24 | Cold rolling unit system and implementation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010557397 CN102078880B (en) | 2010-11-24 | 2010-11-24 | Cold rolling unit system and implementation method thereof |
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| Publication Number | Publication Date |
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| CN102078880A true CN102078880A (en) | 2011-06-01 |
| CN102078880B CN102078880B (en) | 2013-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010557397 Expired - Fee Related CN102078880B (en) | 2010-11-24 | 2010-11-24 | Cold rolling unit system and implementation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3999259B1 (en) | 2019-07-17 | 2023-09-06 | Primetals Technologies Austria GmbH | Cold rolling of rolled material |
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| US4771626A (en) * | 1986-03-14 | 1988-09-20 | Nippon Steel Corporation | Apparatus for roll-changing |
| CN1091061A (en) * | 1993-02-15 | 1994-08-24 | 日铁建材工业株式会社 | Standby more changing device of roll and insert integral roll |
| JPH07275910A (en) * | 1994-04-07 | 1995-10-24 | Sumitomo Metal Ind Ltd | Roll changing device for 6-stage rolling mill |
| CN1986088A (en) * | 2006-12-22 | 2007-06-27 | 中冶南方工程技术有限公司 | Method of raising utilization rate of roll |
| CN101336143A (en) * | 2005-11-25 | 2008-12-31 | 西门子Vai金属科技有限公司 | Method of managing cylinders in a rolling facility and installation for implementing same |
| CN101786103A (en) * | 2009-11-20 | 2010-07-28 | 无锡瑞佳精机有限公司 | Improved cardan shaft joint structure for six-roller mill |
| CN201871532U (en) * | 2010-11-24 | 2011-06-22 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling unit system |
-
2010
- 2010-11-24 CN CN 201010557397 patent/CN102078880B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4771626A (en) * | 1986-03-14 | 1988-09-20 | Nippon Steel Corporation | Apparatus for roll-changing |
| CN1091061A (en) * | 1993-02-15 | 1994-08-24 | 日铁建材工业株式会社 | Standby more changing device of roll and insert integral roll |
| JPH07275910A (en) * | 1994-04-07 | 1995-10-24 | Sumitomo Metal Ind Ltd | Roll changing device for 6-stage rolling mill |
| CN101336143A (en) * | 2005-11-25 | 2008-12-31 | 西门子Vai金属科技有限公司 | Method of managing cylinders in a rolling facility and installation for implementing same |
| CN1986088A (en) * | 2006-12-22 | 2007-06-27 | 中冶南方工程技术有限公司 | Method of raising utilization rate of roll |
| CN101786103A (en) * | 2009-11-20 | 2010-07-28 | 无锡瑞佳精机有限公司 | Improved cardan shaft joint structure for six-roller mill |
| CN201871532U (en) * | 2010-11-24 | 2011-06-22 | 佛山市高明基业冷轧钢板有限公司 | Cold rolling unit system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3999259B1 (en) | 2019-07-17 | 2023-09-06 | Primetals Technologies Austria GmbH | Cold rolling of rolled material |
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