CN104492814B - A kind of hot rolling 1580mm planisher roll forming configuring method - Google Patents
A kind of hot rolling 1580mm planisher roll forming configuring method Download PDFInfo
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- CN104492814B CN104492814B CN201410708344.8A CN201410708344A CN104492814B CN 104492814 B CN104492814 B CN 104492814B CN 201410708344 A CN201410708344 A CN 201410708344A CN 104492814 B CN104492814 B CN 104492814B
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Abstract
The invention provides a kind of hot rolling 1580mm planisher roll forming configuring method, it is characterized in that: in the support roller of hot rolling 1580mm planisher, adopt 6 order polynomial roll shape curves, the working roll of hot rolling 1580mm planisher adopts 4 order polynomials bear convexity roll shape curve.A kind of hot rolling 1580mm planisher roll forming configuring method provided by the invention, it is possible to the smooth ability of planisher is greatly improved and improves the quality of plate shape.
Description
Technical field
The invention belongs to hot-rolled leveling technical field, particularly to a kind of hot rolling 1580mm planisher roll forming configuring method.
Background technology
In recent years, steel industry homogeneity competition causes that entirety suffers great loss, and domestic steel mill increases the exploitation of low cost, high added value kind one after another, promotes the fast development of " with hot Dai Leng " technology.This wherein hot rolling acid-cleaning plate and container plate account for major part, particularly the market space of thin gauge strip is huge.Current domestic acid-cleaning plate market year demand at more than 300t, wherein 3.0mm and following thin slab product account for 87%；Container plate market year demand at 300-350t, wherein 2.0mm and following thin slab product account for 45%.This series products milled sheet shape is difficult to control to, and is both needed to carry out technique smooth to meet user's strict demand to Thin Strip Steel glacing flatness.
The hot rolling 1580mm planisher of current hot rolling mill is since going into operation, and thin gauge strip Strip Shape Control effect is unsatisfactory.Owing to bending roller force is constantly in negative curved limit area, limit the roller improvement ability to shape wave, simultaneously because the shape wave that the uneven wear of hot rolling and leveling machine working roll causes thin gauge strip cannot be eliminated by technique adjustment, only it is forced frequently to change working roll, the smooth volume number so causing the single roller phase is very few, have a strong impact on the production capacity power that reaches of newly-built planisher, and constrained the yield of thin gauge strip, weaken the profitability of enterprise.And only by optimizing flattening process, the demand cannot have been met.Therefore, for smoothing and rolling process, rational roll system arrangement is most important for the Strip Shape Control ability improving planisher.
Summary of the invention
The technical problem to be solved is to provide the planisher roll forming configuring method of a kind of Strip Shape Control ability that can strengthen hot rolling 1580mm planisher.
For solving above-mentioned technical problem, the invention provides a kind of hot rolling 1580mm planisher roll forming configuring method, the support roller of hot rolling 1580mm planisher adopts 6 order polynomial roll shape curves, the working roll of hot rolling 1580mm planisher adopts 4 order polynomials bear convexity roll shape curve.
Further, the roll forming equation of the 6 order polynomial roll shape curves described planisher support roller adopted is:
B (x)=b6x6+b5x5+b4x4+b3x3+b2x2+b1x+b0
In formula, B (x) is support roller semidiameter, and unit is μm；X is support roller body of roll coordinate, and zero is in one end of roll, and unit is mm；Polynomial equation coefficient respectively b6=1.220099E+02, b5=-1.760448E-07, b4=2.102859E+01, b3=2.067268E-07, b2=-2.831263, b1=-4.767776E-08, b0=1.672938E-01.
Further, the barrel length of described planisher support roller is 1580mm.
Further, the roll forming equation of the negative convexity roll shape curve of 4 order polynomials described planisher working roll adopted is:
R (x)=r4x4+r2x2+r1x+r0
In formula, R (x) is working roll semidiameter, and unit is μm；X is working roll body of roll coordinate, and zero is in the centre position of roll, and unit is mm；Polynomial equation coefficient respectively r4=-9.993557E-11, r2=1.248611E-04, r1=6.871066E-12, r0=2.786135E-02.
Further, the barrel length of described planisher working roll is 1980mm.
A kind of hot rolling 1580mm planisher roll forming configuring method provided by the invention, by roll forming is reconfigured, the plate shape ability of regulation and control making work roll bending improves more than 20%, the smooth ability of thin gauge strip is particularly greatly improved by the smooth ability making planisher, single smooth amount overlapping working roll is made to add more than 85%, the degree of wear of working roll also makes moderate progress, and the shape wave improvement level of emphasis kind improves further, enhances the ability that reducing enterprise cost increases income.And roll forming optimization is without carrying out any transformation to equipment, only grinding need to going out given roll shape curve on roll, it is easy in Ge great steel mill with popularization and application on type hot rolling and leveling machine, it is convenient and very low cost to implement.
Accompanying drawing explanation
Fig. 1 is the present invention backup roll contour curve chart for hot rolling 1580mm planisher；
Fig. 2 is the present invention shape of working roll curve chart for hot rolling 1580mm planisher；
Fig. 3 adopts the Strip Shape Control ability contrast before and after roll system arrangement of the present invention；
Fig. 4 adopts the working roller abrasion comparison diagram before and after roll system arrangement of the present invention；
Detailed description of the invention
A kind of hot rolling 1580mm planisher roll forming configuring method that the embodiment of the present invention provides, adopts 6 order polynomial roll shape curves in the support roller of hot rolling 1580mm planisher, adopts 4 order polynomials to bear convexity roll shape curve on the working roll of hot rolling 1580mm planisher.
Wherein, the roll forming equation of 6 order polynomial roll shape curves planisher support roller adopted is:
B (x)=b6x6+b5x5+b4x4+b3x3+b2x2+b1x+b0
In formula, B (x) is support roller semidiameter, and unit is μm；X is support roller body of roll coordinate, and zero is in one end of roll, and unit is mm；Polynomial equation coefficient respectively b6=1.220099E+02, b5=-1.760448E-07, b4=2.102859E+01, b3=2.067268E-07, b2=-2.831263, b1=-4.767776E-08, b0=1.672938E-01.
Wherein, the barrel length of planisher support roller is 1580mm.
Wherein, the roll forming equation of the negative convexity roll shape curve of 4 order polynomials planisher working roll adopted is:
R (x)=r4x4+r2x2+r1x+r0
In formula, R (x) is working roll semidiameter, and unit is μm；X is working roll body of roll coordinate, and zero is in the centre position of roll, and unit is mm；Polynomial equation coefficient respectively r4=-9.993557E-11, r2=1.248611E-04, r1=6.871066E-12, r0=2.786135E-02.
Wherein, the barrel length of planisher working roll is 1980mm.
Now for certain hot rolling mill 1580mm hot rolling and leveling machine, hot rolling 1580mm planisher roll forming configuring method provided by the invention is illustrated.
Skin pass mill group primary parameters of test apparatus: support roller roller footpath is 1000-1100mm, barrel length is 1550mm；Working roll roller footpath is 500-550mm, and barrel length is 1980mm；Possess ± 60t one side roller ability and ± 200mm Long travel roll shifting scope, elongation percentage≤4%；Strip width ranges for 700-1450mm, and thickness range is 1.0-6.5mm；Forward pull is 18t to the maximum, and backward pull is 30t to the maximum；Maximum rolling force reaches 1650t.
Support roller referring to Fig. 1,1580mm hot rolling and leveling machine adopts 6 order polynomial roll shape curves, and the roll shape curve of its support roller is set as:
B (x)=1.220099E+02x6-1.760448E-07x5+2.102859E+01x4
+2.067268E-07x3-2.831263x2-4.767776E-08x+1.672938E-01
Working roll referring to Fig. 2,1580mm hot rolling and leveling machine adopts 4 order polynomials to bear convexity roll shape curve, and the roll shape curve of its support roller is set as:
R (x)=-9.993557E-11x4+1.248611E-04x2
+6.871066E-12x+2.786135E-02
Referring to Fig. 3, adopt four roller planisher limit element artificial module that the Strip Shape Control ability of planisher under two kinds of roll system arrangements is analyzed contrast, in bending roller force is from-60t to the range of accommodation of 0t, the roll system arrangement of the present invention configures compared to plain-barreled roll, and its convexity regulates territory and improves 24.0%；In bending roller force is from-60t to the range of accommodation of 20t, its convexity regulates territory and improves 27.8%, and this illustrates that its Strip Shape Control ability of planisher adopting roll system arrangement of the present invention is higher, and especially the regulating power of the positive roller of working roll promotes more notable.
Referring to Fig. 4, adopting hot rolling 1580mm planisher roll forming configuring method provided by the invention, no matter lower machine abrasion roll forming is wear extent or uniformity all has clear improvement, and single smooth amount overlapping working roll adds more than 85%.
After hot rolling 1580mm planisher roll forming configuring method provided by the invention is applied to certain hot rolling mill 1580mm planisher, the plate shape ability of regulation and control of work roll bending improves more than 20%, enable in particular to make the smooth ability of thin gauge strip and strip shape quality be largely increased, the production capacity that can promote this type of high added value kind promotes steadily, strengthens ability and the competitiveness of product in market that reducing enterprise cost increases income.
It should be noted last that, above detailed description of the invention is only in order to illustrate technical scheme and unrestricted, although the present invention being described in detail with reference to example, it will be understood by those within the art that, technical scheme can be modified or equivalent replacement, without deviating from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of scope of the presently claimed invention.
Claims (3)
1. a hot rolling 1580mm planisher roll forming configuring method, it is characterised in that: in the support roller of hot rolling 1580mm planisher, adopt 6 order polynomial roll shape curves, the working roll of hot rolling 1580mm planisher adopts 4 order polynomials bear convexity roll shape curve；
Wherein, the roll forming equation of the 6 order polynomial roll shape curves described support roller adopted is:
B (x)=b6x6+b5x5+b4x4+b3x3+b2x2+b1x+b0
In formula, B (x) is support roller semidiameter, and unit is μm；X is support roller body of roll coordinate, and zero is in one end of roll, and unit is mm；Polynomial equation coefficient respectively b6=1.220099E+02, b5=-1.760448E-07, b4=2.102859E+01, b3=2.067268E-07, b2=-2.831263, b1=-4.767776E-08, b0=1.672938E-01；
Wherein, the roll forming equation of the negative convexity roll shape curve of 4 order polynomials described working roll adopted is:
R (x)=r4x4+r2x2+r1x+r0
In formula, R (x) is working roll semidiameter, and unit is μm；X is working roll body of roll coordinate, and zero is in the centre position of roll, and unit is mm；Polynomial equation coefficient respectively r4=-9.993557E-11, r2=1.248611E-04, r1=6.871066E-12, r0=2.786135E-02.
2. hot rolling 1580mm planisher roll forming configuring method according to claim 1, it is characterised in that: the barrel length of described support roller is 1580mm.
3. hot rolling 1580mm planisher roll forming configuring method according to claim 1, it is characterised in that: the barrel length of described working roll is 1980mm.
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| CN109719136B (en) * | 2018-12-24 | 2021-02-26 | 唐山钢铁集团有限责任公司 | Roll-shaped curve of hexagonal square supporting roll |
| CN110385343A (en) * | 2019-07-26 | 2019-10-29 | 首钢集团有限公司 | A kind of hot rolling and leveling machine warpage control method |
| CN112122341B (en) * | 2020-08-10 | 2022-04-26 | 山西太钢不锈钢股份有限公司 | Combined roller type of temper mill |
| CN114406009B (en) * | 2022-01-26 | 2023-09-29 | 北京首钢股份有限公司 | Roll shape determining method and device with convexity control capability |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276273A (en) * | 1999-05-20 | 2000-12-13 | 丹尼利联合公司－丹尼利公司分公司 | Antisymmetric variety arch rollers and combination method thereof |
| US6314776B1 (en) * | 2000-10-03 | 2001-11-13 | Alcoa Inc. | Sixth order actuator and mill set-up system for rolling mill profile and flatness control |
| CN101554635A (en) * | 2009-05-18 | 2009-10-14 | 首钢总公司 | Method for configuring shape of supporting roll of four-high mill and shape of working roll thereof |
| CN101837369A (en) * | 2009-03-17 | 2010-09-22 | 上海梅山钢铁股份有限公司 | Roller of four-high rougher |
| CN102632111A (en) * | 2012-04-06 | 2012-08-15 | 马钢(集团)控股有限公司 | Semi-process electrical steel plate flattening machine and method for flattening steel plate by using semi-process electrical steel plate flattening machine |
| CN102716911A (en) * | 2012-06-21 | 2012-10-10 | 首钢总公司 | Composite supporting roll for hot-continuous rolling wide-strip-steel four-roll mill |
-
2014
- 2014-11-28 CN CN201410708344.8A patent/CN104492814B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1276273A (en) * | 1999-05-20 | 2000-12-13 | 丹尼利联合公司－丹尼利公司分公司 | Antisymmetric variety arch rollers and combination method thereof |
| US6314776B1 (en) * | 2000-10-03 | 2001-11-13 | Alcoa Inc. | Sixth order actuator and mill set-up system for rolling mill profile and flatness control |
| CN101837369A (en) * | 2009-03-17 | 2010-09-22 | 上海梅山钢铁股份有限公司 | Roller of four-high rougher |
| CN101554635A (en) * | 2009-05-18 | 2009-10-14 | 首钢总公司 | Method for configuring shape of supporting roll of four-high mill and shape of working roll thereof |
| CN102632111A (en) * | 2012-04-06 | 2012-08-15 | 马钢(集团)控股有限公司 | Semi-process electrical steel plate flattening machine and method for flattening steel plate by using semi-process electrical steel plate flattening machine |
| CN102716911A (en) * | 2012-06-21 | 2012-10-10 | 首钢总公司 | Composite supporting roll for hot-continuous rolling wide-strip-steel four-roll mill |
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Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: Capital Iron & Steel General Company |