CN104438438B - A kind of CSP of correction batches the method for Wrapping Roll roll gap precision - Google Patents

A kind of CSP of correction batches the method for Wrapping Roll roll gap precision Download PDF

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Publication number
CN104438438B
CN104438438B CN201410625993.1A CN201410625993A CN104438438B CN 104438438 B CN104438438 B CN 104438438B CN 201410625993 A CN201410625993 A CN 201410625993A CN 104438438 B CN104438438 B CN 104438438B
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roll
wrapping
correction
wrapping roll
roll gap
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CN104438438A (en
Inventor
李耀辉
王飞
王程
邓槟杰
赵海山
王少
崔雨轩
张云锦
史红林
王宏军
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Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
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Magang Group Holding Co Ltd
Maanshan Iron and Steel Co Ltd
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Abstract

The present invention relates to a kind of method that CSP of correction batches Wrapping Roll roll gap precision, comprise the steps: the first step: manual synchronizing axle diameter size: second step: Automated condtrol correction to program mandrel pre-expansion diameter: the 3rd step: correction Wrapping Roll deviation.Solve Wrapping Roll work roll gap instability problem, efficiently solve horse steel CSP Wrapping Roll steel-fastening problem, improve milling train production stability.

Description

A kind of CSP of correction batches the method for Wrapping Roll roll gap precision
Technical field
The present invention relates to hot rolling reeling process control technology, be specifically related to a kind of method that CSP of correction batches Wrapping Roll roll gap precision.
Background technology
The Wrapping Roll of horse steel CSP downcoiler is bending, guide, holddown belt steel head, and being wrapped on mandrel tightly, Mandrel is assisted to expand tensioning strip steel.The strip steel so rolled tightly send roller and mandrel to set up stable tension adding, it is achieved that batch volume smoothly Take.Wrapping Roll is the presetting roll gap of Wrapping Roll to strip steel head Deformation control major influence factors, but in actual production process, Wrapping Roll roll gap is unstable in batching high-speed rotation, frequently results in 1# Wrapping Roll steel-fastening, causes the hot rolling production order and stop Stagnant, produce a large amount of waste product and defective work, seriously constrain CSP production, steady quality.This problem is equal in Ge great steel mill There is process control issues, be also that hot rolling produces the urgent key issue solved.
Summary of the invention
For coiling machine equipment state, the feature of technology controlling and process, it is an object of the invention to provide a kind of correction CSP and batch and help volume The method of roller gap precision, solves Wrapping Roll work roll gap instability problem, effectively solves horse steel CSP Wrapping Roll steel-fastening problem, Improve milling train production stability.Concrete technical scheme is as follows:
A kind of CSP of correction batches the method for Wrapping Roll roll gap precision, comprises the steps:
(1) correction axle diameter size;
(2) correction mandrel pre-expansion diameter;
(3) correction Wrapping Roll deviation.
Further, step (1) uses manual synchronizing axle diameter size.
Further, step (1) includes that step manually uses the installation diameter of tape measure mandrel before 1. installing;And/or step The artificial expansion maximum gauge using tape measure mandrel after rapid 2. installation.
Further, step (2) uses Automated condtrol correction to program mandrel pre-expansion diameter.
Further, step (2) includes that 1. step corrects the concordance of axle diameter change and radar repeater;And/or step 2., after Wrapping Roll automatic Calibration, hand inspection Wrapping Roll roll gap changes.
Further, step (3) farther includes following steps:
(3-1) adjusting speed and the pressure of Wrapping Roll calibration process, after being allowed to demarcate, roll gap changes in the specific deviation range of technology controlling and process In;
(3-2), after Wrapping Roll automatic Calibration terminates, run mandrel and Wrapping Roll maintains specific speed, check the change of Wrapping Roll roll gap, root According to Wrapping Roll operation result, check each Wrapping Roll roll gap drift value;
(3-3) revising Wrapping Roll roll gap, revised roll gap meets default technological requirement.
Step (3-1) checks data according to first and second step, completes in automatic control program.
Hand inspection Wrapping Roll roll gap change in step (3-2).
Exploitation Wrapping Roll roll gap automated procedures module in step (3-3), revises Wrapping Roll roll gap.
Compared with currently available technology, the present invention is effectively improved and batches production stability.In simulation test: according to 2013 Year so far heap steel number of times statistics, monthly can be prevented effectively from and batch Wrapping Roll heap steel 1 time, effectively prevent continuous casting and rolling stop production, Stop watering the most normally opened watering according to each continuous casting and need 120min;The most subnormal opening waters setting up expenses needs 100,000;Heap steel damages every time Lose 4.7 ten thousand yuan;The average rolling rhythm of milling train is that volume 1/3min. can obtain:
(1) steady production generation year benefit:
=120min/3min × 24 ton/volume × 1000 yuan/ton × December/year=11,520,000 yuan
(2) rolling line accident year failure costs:
=1 time/month × December × (100,000+4.7 ten thousand)=176.4 ten thousand
Therefore, so increasing annual value of production benefit: 1152+176.4=1328.4 ten thousand altogether.
Accompanying drawing explanation
Fig. 1 is for batching Wrapping Roll zero reference roll gap technological requirement
Fig. 2 is for batching Wrapping Roll and mandrel position debugging figure
Fig. 3 is axle diameter and piston actuating length correspondingly-sized figure
Fig. 4 is for batching Wrapping Roll zero reference gap preset requirement
Detailed description of the invention
Describing the present invention below according to accompanying drawing, it is a kind of preferred embodiment in numerous embodiments of the present invention. The first step: manual synchronizing axle diameter size:
1. the artificial installation diameter using tape measure mandrel before installing;
2. the artificial expansion maximum gauge using tape measure mandrel after installing.
Second step: Automated condtrol correction to program mandrel pre-expansion diameter:
1. the change of correction axle diameter and the concordance of radar repeater;
2., after Wrapping Roll automatic Calibration, hand inspection Wrapping Roll roll gap changes;
3rd step: correction Wrapping Roll deviation
1. at automatic control program, check data according to first and second step, adjust speed and the pressure of Wrapping Roll calibration process, be allowed to After demarcation, roll gap changes in the specific deviation range of technology controlling and process;
2. after Wrapping Roll automatic Calibration terminates, running mandrel and Wrapping Roll maintains specific speed, hand inspection Wrapping Roll roll gap changes, According to Wrapping Roll operation result, check each Wrapping Roll roll gap drift value;
3. exploitation Wrapping Roll roll gap automated procedures module, revises Wrapping Roll roll gap, and revised roll gap meets specific technological requirement.
Wherein, artificial check axle diameter size, its control accuracy meets Fig. 3 technological requirement.Check Wrapping Roll zero reference roll gap Meet the technology requirement of Fig. 4.
After New technical use, hot rolling reeling heap steel is greatly reduced, and is effectively improved and batches production stability.In simulation In test: batch the Wrapping Roll steel-fastening number of times average moon 3 times from the second half year in 2013, after measure is implemented, the first half of the year in 2014 Batch the production accident not occurring once to be similar to.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements and is not subject to the restrictions described above, As long as have employed method design and the various improvement that carry out of technical scheme of the present invention, or the most improved directly apply to other occasion , all within protection scope of the present invention.

Claims (9)

1. one kind corrects the method that CSP batches Wrapping Roll roll gap precision, it is characterised in that comprise the steps:
(1) correction axle diameter size;
(2) correction mandrel pre-expansion diameter;
(3) correction Wrapping Roll deviation.
2. the method that correction CSP as claimed in claim 1 batches Wrapping Roll roll gap precision, it is characterised in that use in step (1) Manual synchronizing axle diameter size.
3. the method that correction CSP as claimed in claim 1 or 2 batches Wrapping Roll roll gap precision, it is characterised in that in step (1) 1. the artificial installation diameter using tape measure mandrel before installing including step;And/or step 2. install after artificial use tape measure to survey The expansion maximum gauge of amount mandrel.
4. the method that correction CSP as claimed in claim 1 batches Wrapping Roll roll gap precision, it is characterised in that use in step (2) Automated condtrol correction to program mandrel pre-expansion diameter.
5. the method that correction CSP as claimed in claim 1 batches Wrapping Roll roll gap precision, it is characterised in that step (2) includes 1. step corrects the concordance of axle diameter change and radar repeater;And/or after step 2. Wrapping Roll automatic Calibration, hand inspection Wrapping Roll roll gap changes.
6., such as claim 1, the method that the correction CSP according to any one of 2,4,5 batches Wrapping Roll roll gap precision, its feature exists Following steps are farther included in, step (3):
(3-1) adjusting speed and the pressure of Wrapping Roll calibration process, after being allowed to demarcate, roll gap changes in the specific deviation range of technology controlling and process In;
(3-2), after Wrapping Roll automatic Calibration terminates, run mandrel and Wrapping Roll maintains specific speed, check the change of Wrapping Roll roll gap, according to Wrapping Roll operation result, checks each Wrapping Roll roll gap drift value;
(3-3) revising Wrapping Roll roll gap, revised roll gap meets default technological requirement.
7. the method that correction CSP as claimed in claim 6 batches Wrapping Roll roll gap precision, it is characterised in that step (3-1) basis First and second step in claim 1 checks data, completes in automatic control program.
8. the method that correction CSP as claimed in claim 6 batches Wrapping Roll roll gap precision, it is characterised in that people in step (3-2) Work checks the change of Wrapping Roll roll gap.
9. the method that correction CSP as claimed in claim 6 batches Wrapping Roll roll gap precision, it is characterised in that open in step (3-3) Send out Wrapping Roll roll gap automated procedures module, revise Wrapping Roll roll gap.
CN201410625993.1A 2014-11-08 2014-11-08 A kind of CSP of correction batches the method for Wrapping Roll roll gap precision Active CN104438438B (en)

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CN105013860B (en) * 2015-07-20 2017-06-20 首钢京唐钢铁联合有限责任公司 The control method that a kind of hot-rolling high-strength steel head steady is batched
CN106269877B (en) * 2016-08-25 2018-04-06 山东钢铁股份有限公司 A kind of coil wrapper roll roll gap automatic Calibration and precision test method
CN109834132B (en) * 2019-03-27 2020-06-19 山西太钢不锈钢股份有限公司 Zero adjustment control method for auxiliary winding roller of winding machine
CN113263057B (en) * 2021-04-23 2023-05-05 北京科技大学设计研究院有限公司 Monitoring and early warning method for rigidity precision of hot-rolled strip steel coiling machine
CN114101333B (en) * 2021-11-08 2023-04-18 包头钢铁(集团)有限责任公司 Hot rolled strip steel recoiling machine auxiliary winding roller static calibration method

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JPS5584222A (en) * 1978-12-20 1980-06-25 Ishikawajima Harima Heavy Ind Co Ltd Control method of wrapper roll
JPH08141638A (en) * 1994-09-22 1996-06-04 Sumitomo Metal Ind Ltd Control method of wrapper roll and its device
JPH11714A (en) * 1997-06-09 1999-01-06 Kawasaki Steel Corp Method for taking-up metallic band
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