CN106064179A - A kind of method that the UCM of prevention milling train final pass opens car broken belt - Google Patents
A kind of method that the UCM of prevention milling train final pass opens car broken belt Download PDFInfo
- Publication number
- CN106064179A CN106064179A CN201610495216.9A CN201610495216A CN106064179A CN 106064179 A CN106064179 A CN 106064179A CN 201610495216 A CN201610495216 A CN 201610495216A CN 106064179 A CN106064179 A CN 106064179A
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- Prior art keywords
- final pass
- car
- opens
- ucm
- milling train
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
A kind of method that the UCM of prevention milling train final pass opens car broken belt, it is adaptable to during opening car, including step: S1, opens final pass car roll-force and reduces by 1000 1500KN on the basis of standard value；S2, opens final pass car roll bending power and reduces by 20 30KN on the basis of standard value；S3, reduces 90% 95% to programmed values by final pass forward pull；S4, final pass opens car mill speed increases 30m/min on the basis of standard value.It opens car for reversible cold-rolling unit and pair rolling constructs safe and efficient tupe, generation of preventing accident, and improves work efficiency.
Description
Technical field
The present invention relates to cold rolling technology, particularly relate to a kind of method that the UCM of prevention milling train final pass opens car broken belt.
Background technology
Reversing cold mill is widely used in cold rolled strip steel production, has input cost low, and organization of production is flexible
Plurality of advantages.Final pass opens car sideslip broken belt and refers to that milling train opens strip steel deviation rolling centerline during car herein, occurs
Strip steel rolls the phenomenon of leakage tear, belongs to the major accident that in Rolling production, impact produces, loss is bigger；UCM milling train is produced
For the chill volume of less than 0.30, owing to the thickness of hot rolling stock roll is typically controlling about 2.75 so that rolling
Total reduction is about 90%, and total reduction is bigger, and final pass strip steel is thin.Mill personnel changes in the operation of rolling
Final pass or final pass open regular generation belt phenomenon during car, and strip steel cannot be rolled down to target thickness, finally be force-landed
Level is changed the original sentence to and is even caused substandard products to roll up, and causes the lumber recovery of less than 0.30 thin gauge strip to be substantially reduced, and unplanned quantity in stock increases
Adding, cause nonscheduled down time to increase, considerably increase the production cost of milling train, finally resulting in customer order cannot hand in time
Pay, bring the biggest economic loss to factory.Major part reversing cold mill operating process at present do not has complete prevention
Milling train opens the operational approach of car broken belt, prevents sideslip broken belt from relying primarily on operative employee's situ visualization and observes regulation.Existence to realize
Open car safety, neither one reasonable criterion problem.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention proposes a kind of method that the UCM of prevention milling train final pass opens car broken belt,
It opens car for reversible cold-rolling unit and pair rolling constructs safe and efficient tupe, generation of preventing accident, and improves work
Make efficiency.
To achieve these goals, the scheme that the present invention uses is:
A kind of method that the UCM of prevention milling train final pass opens car broken belt, it is adaptable to during opening car, including step:
S1, opens final pass car roll-force and reduces 1000-1500KN on the basis of standard value；
S2, opens final pass car roll bending power and reduces 20-30KN on the basis of standard value；
S3, reduces the 90%-95% to programmed values by final pass forward pull；
S4, final pass opens car mill speed increases 30m/min on the basis of standard value.
In described step S1, when supplied materials width is 1000mm, it is 1500KN that final pass opens the decreasing value of car roll-force.
In described step S1, when supplied materials width is 1200mm, it is 1000KN that final pass opens the decreasing value of car roll-force.
In described step S1, when supplied materials width is 1250mm, it is 1000KN that final pass opens the decreasing value of car roll-force.
In described step S2, when supplied materials width is 1000mm, it is 20KN that final pass opens the reduced value of car roll bending power.
In described step S2, when supplied materials width is 1200mm, it is 25KN that final pass opens the reduced value of car roll bending power.
In described step S2, when supplied materials width is 1250mm, it is 30KN that final pass opens the reduced value of car roll bending power.
Beneficial effects of the present invention has:
1, ensure that rolling less than 0.3 Ultra-thin strip steel final pass opens that car is safe and stable to be carried out, for stable operation
Roll less than 0.3 Ultra-thin strip steel and provide reasonable criterion, can effectively reduce operation of rolling band of discontinuance accident rate, carry
Rise rolling mill yield, improve production efficiency, reduce Rolling roller consumption, save production cost；
2, complexity and the uncertainty of execute-in-place are effectively reduced；
3, definite principle, application operating is easy, has good universality, adaptability and portability, can be suitable for other
The cold rolling UCM reversable mill of iron and steel enterprise produces.
Accompanying drawing explanation
Fig. 1 is the Cold Rolling deformed area force analysis figure that patent of the present invention provides.
Detailed description of the invention
In order to be better understood by technical scheme, the invention will be further described below in conjunction with the accompanying drawings.
As it is shown in figure 1, in rolling man machine interface by opening car roll-force poor (Pdif=Pds-Pos) size, it is judged that rolling
Both sides, deformed area stressing conditions, it is judged that according to being: Pdif > 0, illustrates that belt steel rolling deformed area is big by driving side stress, is subject to
The possibility of the component effect of point operation side, after milling train opens car, strip steel may be partial to fore side；Pdif < 0, illustrates belt steel rolling
Deformed area is big by fore side stress, has the possibility being subject to point to the component effect of driving side, and milling train opens car car steel and may be partial to
Driving side；To this end, by reducing contact in rolling roll-force, reduce roll and strip steel effective contact area area, it is to avoid finished product
Relatively big " transverse shear " is provided to cause broken belt during passage conversion.
Wherein, Pdif is that roll-force is poor；Pds is driving side roll-force；Pos is fore side roll-force.
When rolling less than 0.3 Ultra-thin strip steel, during final pass conversion or opening car, according to raw material width,
Intervene regulation as follows:
When supplied materials width is 1000mm, it is 1500KN that final pass opens the decreasing value of car roll-force；Final pass opens car
The reduced value of roll bending power is 20KN；Final pass forward pull reduces the 90%-95% to programmed values；Final pass opens car
Mill speed increases 30m/min on the basis of standard value.
When supplied materials width is 1200mm, it is 1000KN that final pass opens the decreasing value of car roll-force；Final pass opens car
The reduced value of roll bending power is 25KN；Final pass forward pull reduces the 90%-95% to programmed values；Final pass opens car
Mill speed increases 30m/min on the basis of standard value.
When supplied materials width is 1250mm, it is 1000KN that final pass opens the decreasing value of car roll-force；Final pass opens car
The reduced value of roll bending power is 30KN；Final pass forward pull reduces the 90%-95% to programmed values；Final pass opens car
Mill speed increases 30m/min on the basis of standard value.
Data before improvement are as shown in table 1:
Table 1
The principle that the present embodiment is used with effect is:
Roll-force: reduce roll and the effective contact area of strip steel, it is to avoid relatively big " transverse shear " is provided during final pass conversion
And cause broken belt.
Work roll bending power: release working roll directly contacts effective contact area in the middle part of strip steel, it is to avoid produce " crosscutting " effect
Really, broken belt is prevented.
Tension force: when preventing final pass from changing, forward pull moment increases, and working roll is pressed against in the middle part of strip steel, produces " crosscutting " effect
Really, it is to avoid broken belt occurs.
Mill speed speed: improve emulsion lubrication, produces uniform oil film as early as possible between roll and strip steel, reduces rolling
Power, prevents from opening car thickness fluctuation problem generation broken belt.
In Fig. 1, Pos '=Pos；Pds '=Pds
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (7)
1. one kind is prevented the method that UCM milling train final pass opens car broken belt, it is adaptable to during opening car, it is characterised in that include
Step:
S1, opens final pass car roll-force and reduces 1000-1500KN on the basis of standard value；
S2, opens final pass car roll bending power and reduces 20-30KN on the basis of standard value；
S3, reduces the 90%-95% to programmed values by final pass forward pull；
S4, final pass opens car mill speed increases 30m/min on the basis of standard value.
The method that a kind of UCM of prevention milling train final pass the most as claimed in claim 1 opens car broken belt, it is characterised in that described
In step S1, when supplied materials width is 1000mm, it is 1500KN that final pass opens the decreasing value of car roll-force.
The method that a kind of UCM of prevention milling train final pass the most as claimed in claim 1 opens car broken belt, it is characterised in that described
In step S1, when supplied materials width is 1200mm, it is 1000KN that final pass opens the decreasing value of car roll-force.
The method that a kind of UCM of prevention milling train final pass the most as claimed in claim 1 opens car broken belt, it is characterised in that described
In step S1, when supplied materials width is 1250mm, it is 1000KN that final pass opens the decreasing value of car roll-force.
The method that a kind of UCM of prevention milling train final pass the most as claimed in claim 2 opens car broken belt, it is characterised in that described
In step S2, when supplied materials width is 1000mm, it is 20KN that final pass opens the reduced value of car roll bending power.
The method that a kind of UCM of prevention milling train final pass the most as claimed in claim 3 opens car broken belt, it is characterised in that described
In step S2, when supplied materials width is 1200mm, it is 25KN that final pass opens the reduced value of car roll bending power.
The method that a kind of UCM of prevention milling train final pass the most as claimed in claim 4 opens car broken belt, it is characterised in that described
In step S2, when supplied materials width is 1250mm, it is 30KN that final pass opens the reduced value of car roll bending power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610495216.9A CN106064179A (en) | 2016-06-29 | 2016-06-29 | A kind of method that the UCM of prevention milling train final pass opens car broken belt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610495216.9A CN106064179A (en) | 2016-06-29 | 2016-06-29 | A kind of method that the UCM of prevention milling train final pass opens car broken belt |
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| Publication Number | Publication Date |
|---|---|
| CN106064179A true CN106064179A (en) | 2016-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610495216.9A Pending CN106064179A (en) | 2016-06-29 | 2016-06-29 | A kind of method that the UCM of prevention milling train final pass opens car broken belt |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486469A (en) * | 2017-09-18 | 2017-12-19 | 山西太钢不锈钢股份有限公司 | A kind of method for mitigating stainless steel packing paper rubbing white seal |
| CN107891065A (en) * | 2017-10-24 | 2018-04-10 | 首钢京唐钢铁联合有限责任公司 | Method for preventing thin strip steel from being broken when starting vehicle |
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| JP2004154828A (en) * | 2002-11-07 | 2004-06-03 | Hitachi Engineering & Services Co Ltd | Rolling control apparatus for metal foil |
| CN103357656A (en) * | 2013-07-08 | 2013-10-23 | 济钢集团有限公司 | Manufacturing technology of cold rolling ultrathin strip steel with large roller diameter and high screw-down rate |
| CN103785694A (en) * | 2013-11-22 | 2014-05-14 | 首钢总公司 | Method for preventing strip breakage on startup |
| CN104550236A (en) * | 2015-01-07 | 2015-04-29 | 王乐 | Cold rolling process capable of preventing broken edge wave defect of ultrathin steel strip |
| CN105344712A (en) * | 2015-11-26 | 2016-02-24 | 首钢京唐钢铁联合有限责任公司 | Starting method for raw material plate of cold continuous rolling mill |
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2016
- 2016-06-29 CN CN201610495216.9A patent/CN106064179A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004154828A (en) * | 2002-11-07 | 2004-06-03 | Hitachi Engineering & Services Co Ltd | Rolling control apparatus for metal foil |
| CN103357656A (en) * | 2013-07-08 | 2013-10-23 | 济钢集团有限公司 | Manufacturing technology of cold rolling ultrathin strip steel with large roller diameter and high screw-down rate |
| CN103785694A (en) * | 2013-11-22 | 2014-05-14 | 首钢总公司 | Method for preventing strip breakage on startup |
| CN104550236A (en) * | 2015-01-07 | 2015-04-29 | 王乐 | Cold rolling process capable of preventing broken edge wave defect of ultrathin steel strip |
| CN105344712A (en) * | 2015-11-26 | 2016-02-24 | 首钢京唐钢铁联合有限责任公司 | Starting method for raw material plate of cold continuous rolling mill |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107486469A (en) * | 2017-09-18 | 2017-12-19 | 山西太钢不锈钢股份有限公司 | A kind of method for mitigating stainless steel packing paper rubbing white seal |
| CN107891065A (en) * | 2017-10-24 | 2018-04-10 | 首钢京唐钢铁联合有限责任公司 | Method for preventing thin strip steel from being broken when starting vehicle |
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Application publication date: 20161102 |