CN102397873A - Method for prolonging service life of patterned roller - Google Patents
Method for prolonging service life of patterned roller Download PDFInfo
- Publication number
- CN102397873A CN102397873A CN2010102829143A CN201010282914A CN102397873A CN 102397873 A CN102397873 A CN 102397873A CN 2010102829143 A CN2010102829143 A CN 2010102829143A CN 201010282914 A CN201010282914 A CN 201010282914A CN 102397873 A CN102397873 A CN 102397873A
- Authority
- CN
- China
- Prior art keywords
- roll
- patterned
- roll gap
- patterned roller
- diamond plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000002411 adverse Effects 0.000 claims abstract description 7
- 230000000694 effects Effects 0.000 claims abstract description 7
- 238000012423 maintenance Methods 0.000 claims abstract description 3
- 229910003460 diamond Inorganic materials 0.000 claims description 34
- 239000010432 diamond Substances 0.000 claims description 34
- 239000000758 substrate Substances 0.000 claims description 16
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 6
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000009826 distribution Methods 0.000 abstract 1
- 235000013372 meat Nutrition 0.000 abstract 1
- 238000003860 storage Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 4
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 3
- 244000046052 Phaseolus vulgaris Species 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention provides a method for prolonging the service life of a patterned roller, which reduces the adverse effect of production process and product variety on the service life of the patterned roller by improving the finish rolling temperature of a patterned plate, balancing the rolling pressure and load distribution between frames, adjusting the roll gap difference and the actual edge height control range and other technical measures, thereby improving the edge temperature drop of strip steel and reducing the damage to the patterned roller caused by uneven wear; the rolling pressure and the load are more balanced and reasonable, and the abrasion speed of the patterned roller is reduced; the product is guaranteed to reach the standard, the requirement of a customer can be met, the damage degree of the patterned roller is reduced, the phenomenon that the patterned roller falls off meat or the surface of the patterned roller is avoided, and the average unit consumption of the patterned roller is reduced to 12.99 yuan/ton. Meanwhile, the expense of spare part storage, maintenance and replacement can be reduced, the production cost is reduced, the operation rate of the rolling mill and related equipment is improved, and the smooth production is ensured.
Description
Technical field
The invention belongs to the steel rolling process technical field, relate in particular to a kind of through adjustment with optimize the diamond plate production technology, thereby improve the patterned roll method in service life.
Background technology
Diamond plate is the kind that hot-strip is produced, because it rolls the particularity of back belt steel surface, therefore must use special-purpose roll is that so-called patterned roll can be rolled production.But find that in long-term diamond plate production process the roller consumption of patterned roll is apparently higher than the roller consumption of the common roll of producing other band steel.Tracing it to its cause, mainly is because due to the characteristics of the production technology characteristic of diamond plate and patterned roll roll surface self.The one, because the target temperature of diamond plate finish rolling finish to gauge is lower, the target temperature of general finish to gauge is between 860～880 ℃, and finished strip is thick more, and its finishing temperature is low more, thereby strip edge portion temperature drop is strengthened, and uneven wear very easily causes damage to patterned roll.The 2nd, in the process of implementing, sharing of load is unreasonable between frame for the present automatic thickness control program of widespread usage (being called for short AGC), and the load of the 5th finishing mill F5 (being milling train before the finished product) is too small, and its adjustment factor is merely 0.2; And the adjustment factor of last frame finishing mill F6 (finished frame, roll are patterned roll) is up to 0.7, and drafts is excessive with load, has quickened the wearing and tearing of F6 patterned roll.The 3rd and since the diamond plate product standard almost all only given a rib tall and big in the height value that equals; And the high upper limit of rib is not had concrete regulation, thereby the rib height of the feasible diamond plate that rolls out is excessive, has aggravated the injury to patterned roll; Cause pass to destroy, roll loses flesh etc. influences the phenomenon of using; Both increase the loss per ton steel of patterned roll, and made the average quantity used in unit volume blasted of patterned roll reach 19.88 yuan/ton, shortened the life cycle of patterned roll; Increased the expense expenditure of spare part deposit and maintain and replace again, production cost is improved; Cause patterned roll surface large tracts of land to come off when serious, not only increase the workload that roll is reorganized and outfit, improved labor intensity of operating personnel, and directly have influence on the operating rate of relevant device and carrying out smoothly of production such as milling train.
Summary of the invention
The object of the invention is intended to through optimizing diamond plate processing parameter and adjustment standard control mode; Improve rolling stress, eliminate various adverse effect factors, and then provide a kind of simple; Be convenient to operation, can effectively prolong the patterned roll method in service life.
For this reason, the concrete solution that the present invention taked is:
A kind of patterned roll method in service life that prolongs through revision diamond plate rolling technological parameter, is rationally adjusted the standard control mode, reduces production technology and the product variety adverse effect to patterned roll, improves the service life of patterned roll.
Its concrete grammar is:
1, reduces decorative pattern edges of boards portion temperature drop: improve the finishing temperature that decorative pattern strip aluminium rolls, the finish to gauge target temperature of the decorative pattern strip steel of thickness≤8mm is set at 890 ℃ without exception.
2, reduce the actuating quantity of the automatic thickness control program (being AGC) of last frame finishing mill F6: revise the control parameter of the 5th finishing mill F5 and last frame finishing mill F6, balanced adjustment amount and draught pressure, the AGC integral coefficient k of increasing F5
I5, the AGC integral coefficient k of reduction F6
I6
3, strictness is controlled the roll gap difference and roll the back actual rib of diamond plate high: so-called roll gap difference is meant the roll gap of F5 and the difference between the F6 roll gap, and the roll gap of F5 is greater than the roll gap of F6.Different according to the diamond plate substrate thickness, F5 takes different roll gap differences and the high control range of actual rib with F6, and the diamond plate substrate thickness is thick more, and roll gap difference control range that it is corresponding and the high control range of actual rib are high more.
4, optimize rolling scaduled layout: the early stage of the scheduling of production of diamond plate being changed support roller in each maintenance.
The AGC integral coefficient k of said F5
I5Be 0.3;
The AGC integral coefficient k of said F6
I6Be 0.4.
Said concrete pairing roll gap difference of different diamond plate substrate thickness and the high control range of actual rib, the high control range corresponding tables of row substrate thickness and roll gap difference and actual rib as follows.
The high control range corresponding tables of diamond plate substrate thickness and roll gap difference and actual rib
| Substrate thickness (mm) | F5, F6 roll gap difference control range (mm) | The high control range of actual rib (mm) |
| 2.5～＜3.5 | 0.5～0.7 | 0.5～0.7 |
| ≥3.5～＜4.0 | 0.7～0.9 | 0.6～0.8 |
| ≥4.0～＜5.0 | 0.8～1.0 | 0.6～0.9 |
| ≥5.0～＜7.0 | 1.0～1.3 | 0.7～1.0 |
| ≥7.0～8.0 | 1.2～1.4 | 0.9～1.2 |
When patterned roll is that the roll gap difference between F5, the F6 is pressed lower limit control when going up the new roller of machine for the first time; When being on the secondary during machine patterned roll, the roll gap difference between F5, the F6 is by upper limit control.
Beneficial effect of the present invention is:
Owing to improved the finish to gauge target temperature of decorative pattern strip steel, improved the limit portion temperature drop of band steel relatively, alleviated uneven wear to the damage that patterned roll causes, patterned roll limit portion wear extent is reduced greatly; The AGC integral coefficient of adjustment F5, F6 makes draught pressure and loads balanced and reasonable more, has slowed down the rate of wear of F6 patterned roll; The optimisation criteria control mode, different according to substrate thickness, rationally control the roll gap difference and roll the actual rib height in back, both guaranteed that product was up to standard, can satisfy client's needs again, reduced extent of injury simultaneously to patterned roll; Optimize the rolling scaduled arrangement of diamond plate in addition; Make it avoid the adverse effect of roll change later stage support roller wearing and tearing to working roll; Thereby avoided patterned roll to lose flesh or the generation of surperficial obscission, greatly prolonged the service life of patterned roll, reduced the loss per ton steel of roll; Make the average quantity used in unit volume blasted of patterned roll drop to 12.99 yuan/ton, on average descended 34.65% by 19.88 yuan/ton.Can reduce simultaneously the expense expenditure of spare part deposit and maintain and replace, reduce production costs, also can reduce the stock removal of roll, improve the operating rate of milling train and relevant device, guarantee the direct motion of producing.
The specific embodiment
Below, in conjunction with embodiment the present invention is further specified.
Its primary condition is: the hot rolling diamond plate, and maximum trimmed size 8.0mm adopts 6 finishing mills, and last frame finishing mill F6 (finished frame) uses patterned roll, the new dark 3.2mm of roller beans.
The present invention prolongs the patterned roll method in service life; Mainly be to distribute, adjust technology measures such as roll gap difference and the high control range of actual rib through draught pressure and the load that improves between diamond plate finishing temperature, balanced F5 and the F6; Reduce because production technology and the adverse effect of product variety, thereby realize the raising patterned roll purpose in service life the patterned roll life-span.
Its concrete grammar is:
1, reduce decorative pattern edges of boards portion temperature drop:
Be with under the constant situation of steel tapping temperature and start rolling temperature; Through the control type of cooling and the method for regulating cooling water flow; Reduce the temperature drop of band steel in the operation of rolling; Improve the finish to gauge target temperature that decorative pattern strip aluminium rolls, the finish to gauge target temperature of the decorative pattern strip steel of thickness≤8mm is set at 890 ℃ without exception.The concrete thickness specification of its band steel changes preceding and changes the contrast of back finish to gauge target temperature as follows:
Different steel thickness changes preceding and changes the back finish to gauge target temperature table of comparisons
| Belt steel thickness (mm) | Finish to gauge target temperature before changing (℃) | Finish to gauge target temperature after changing (℃) |
| H≤3.0 | 880 | 890 |
| 3.0＜H≤4.0 | 880 | 890 |
| 4.0＜H≤5.0 | 870 | 890 |
| 5.0＜H≤6.0 | 860 | 890 |
| 6.0＜H≤8.0 | 860 | 890 |
2, reduce the AGC actuating quantity of F6:
Revise the control parameter of F5 and F6, strengthen the AGC controlled quentity controlled variable of F5, promptly increase the dynamic adjustment amount of F5; Reduce the AGC controlled quentity controlled variable of F6, be equivalent to reduce the dynamic adjustment amount of F6, thus balanced load amount and draught pressure.Concrete grammar is the AGC integral coefficient k that strengthens F5
I5, with the AGC integral coefficient k of F5
I5Bring up to 0.3 by 0.2; Reduce the AGC integral coefficient k of F6
I6, with the AGC integral coefficient k of F6
I6Be reduced to 0.4 by 0.7.The purpose of above-mentioned revision mainly is the roll gap regulated quantity Δ u (k) of adjustment and balanced F5 and F6.Because:
Δu(k)＝K[k
p(Δe(k)-Δe(k-1))+k
i×Δe(k)]
In the formula: Δ u (k) is the roll gap regulated quantity;
K is total adjustment factor;
k
pBe proportionality coefficient;
k
iBe integral coefficient;
Δ e (k) is the difference when time sampling period actual (real) thickness and desired value;
The difference of last sampling period actual (real) thickness of Δ e (k-1) and desired value.
Visible by roll gap regulated quantity Δ u (k) computing formula, Δ u (k) and integral coefficient k
iRelevant, the integral coefficient k of adjustment F5 and F6
i, be equivalent to redistribute the roll gap dynamic adjustments amount of F5 and F6, promptly through reducing the AGC integral coefficient k of F6
I6, reduce the F6 influence high to the product rib.
3, strictness is controlled the roll gap difference and rolls the back actual rib of diamond plate high:
Mainly be to carry out the parameter setting that second computer is an object computer; Set up and carry out different substrate thickness (being the thickness that diamond plate does not have the decorative pattern part) pairing roll gap and the high control range standard of rib in the cover diamond plate operation of rolling, in order to instruct practical operation.Its basic skills is: be the basis with national diamond plate product standard, and different according to the diamond plate substrate thickness, take different F5 and the roll gap difference control range between the F6 and diamond plate to roll the high control range of the back actual rib of finished product.In general, the diamond plate substrate thickness is thick more, and roll gap difference control range that it is corresponding and the high control range of actual rib are high more.Its concrete corresponding relation is seen the high control range corresponding tables of diamond plate substrate thickness and roll gap difference and actual rib:
The high control range corresponding tables of diamond plate substrate thickness and roll gap difference and actual rib
It should be noted that for new, old different patterned roll, the control range value of its roll gap difference should slightly be had any different.When patterned roll was the new roller that uses on the machine for the first time, the beans of patterned roll were 3.2mm deeply, and the roll gap difference between F5, the F6 is pressed lower limit control; When being on the secondary during machine patterned roll, deeply generally between 2.0～3.0mm, the roll gap difference between F5, the F6 is by upper limit control for the beans of patterned roll.
4, optimize rolling scaduled layout: the scheduling of production of diamond plate is overhauled the early stage of changing support roller each, make it avoid the adverse effect of support roller wearing and tearing back to patterned roll.
Claims (3)
1. one kind prolongs the patterned roll method in service life, it is characterized in that, through revision diamond plate rolling technological parameter, rationally adjusts the standard control mode, reduces production technology and the product variety adverse effect to patterned roll, improves the service life of patterned roll; Its concrete grammar is:
(1), reduces decorative pattern edges of boards portion temperature drop: improve the finishing temperature that decorative pattern strip aluminium rolls, the finish to gauge target temperature of the decorative pattern strip steel of thickness≤8mm is set at 890 ℃ without exception;
(2), to reduce last frame finishing mill be that F6 automatic thickness control program is the actuating quantity of AGC: the control parameter that to revise the 5th finishing mill be F5 and last frame finishing mill F6, balanced adjustment amount and draught pressure strengthen the AGC integral coefficient k of F5
I5, the AGC integral coefficient k of reduction F6
I6
(3), strictness is controlled the roll gap difference and rolls the back actual rib of diamond plate high: different according to the diamond plate substrate thickness; F5 takes different roll gap differences and the high control range of actual rib with F6; And the diamond plate substrate thickness is thick more, and roll gap difference control range that it is corresponding and the high control range of actual rib are high more;
(4), optimize rolling scaduled layout: the early stage of the scheduling of production of diamond plate being changed support roller in each maintenance.
2. the method in prolongation patterned roll according to claim 1 service life is characterized in that the AGC integral coefficient k of said F5
I5Be 0.3, the AGC integral coefficient k of F6
I6Be 0.4.
3. the method in prolongation patterned roll according to claim 1 service life is characterized in that pairing roll gap difference of said different diamond plate substrate thickness and the high control range of actual rib are:
When patterned roll is that the roll gap difference between F5, the F6 is pressed lower limit control when going up the new roller of machine for the first time; When being on the secondary during machine patterned roll, the roll gap difference between F5, the F6 is by upper limit control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102829143A CN102397873A (en) | 2010-09-16 | 2010-09-16 | Method for prolonging service life of patterned roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102829143A CN102397873A (en) | 2010-09-16 | 2010-09-16 | Method for prolonging service life of patterned roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102397873A true CN102397873A (en) | 2012-04-04 |
Family
ID=45880753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102829143A Pending CN102397873A (en) | 2010-09-16 | 2010-09-16 | Method for prolonging service life of patterned roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102397873A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210807A (en) * | 1990-12-10 | 1992-07-31 | Kawasaki Steel Corp | Checkered steel plate and its production |
| JPH11267705A (en) * | 1998-03-23 | 1999-10-05 | Furukawa Electric Co Ltd:The | Manufacture of checkered plate and manufacturing device thereof |
| CN1442245A (en) * | 2003-04-17 | 2003-09-17 | 攀枝花新钢钒股份有限公司热轧板厂 | Leveling method for hydraulic pressing of patterned roller |
| CN1628918A (en) * | 2003-12-19 | 2005-06-22 | 宝钢集团上海梅山有限公司 | Hot-rolled patterned steel sheet production method |
| CN101121177A (en) * | 2007-09-12 | 2008-02-13 | 山西太钢不锈钢股份有限公司 | Figured plate rolling arrangement roller mode and its figured plate rolling method |
| CN101653780A (en) * | 2009-09-10 | 2010-02-24 | 山西太钢不锈钢股份有限公司 | Rolling method of stainless checkered plate |
-
2010
- 2010-09-16 CN CN2010102829143A patent/CN102397873A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04210807A (en) * | 1990-12-10 | 1992-07-31 | Kawasaki Steel Corp | Checkered steel plate and its production |
| JPH11267705A (en) * | 1998-03-23 | 1999-10-05 | Furukawa Electric Co Ltd:The | Manufacture of checkered plate and manufacturing device thereof |
| CN1442245A (en) * | 2003-04-17 | 2003-09-17 | 攀枝花新钢钒股份有限公司热轧板厂 | Leveling method for hydraulic pressing of patterned roller |
| CN1628918A (en) * | 2003-12-19 | 2005-06-22 | 宝钢集团上海梅山有限公司 | Hot-rolled patterned steel sheet production method |
| CN101121177A (en) * | 2007-09-12 | 2008-02-13 | 山西太钢不锈钢股份有限公司 | Figured plate rolling arrangement roller mode and its figured plate rolling method |
| CN101653780A (en) * | 2009-09-10 | 2010-02-24 | 山西太钢不锈钢股份有限公司 | Rolling method of stainless checkered plate |
Non-Patent Citations (3)
| Title |
|---|
| 向阳: "扁豆形花纹板轧制工艺研究", 《四川冶金》, no. 4, 30 April 2003 (2003-04-30) * |
| 张国河: "薄规格花纹板试轧与工艺改进", 《宝钢技术》, no. 2, 29 February 2008 (2008-02-29) * |
| 李祥等: "热连轧机花纹板轧制工艺的研究", 《山西冶金》, no. 3, 31 March 2001 (2001-03-31) * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106391708B (en) | Rolling method for producing ultrathin strip steel by using cold rolling six-roller single-stand reversible rolling mill | |
| CN102836882A (en) | Method for removing raising head caused by tape threading of hot rolled strip steel | |
| CN103599946B (en) | Thin Specs stainless steel product operation of rolling control method | |
| CN103372575B (en) | Pickling and rolling mill load distribution method | |
| CN104438320A (en) | Ultrathin strip steel rolling method of Sendzimir rolling mill | |
| CN105251768B (en) | Rolling method of ultrathin cold-rolled tinning raw plate | |
| CN101658871A (en) | Optimization method of rolling schedule of non-reversible aluminum strip cold rolling mill | |
| CN105268748A (en) | Hot rolling load distribution method based on product classification | |
| CN103008361B (en) | Method for controlling bending of steel plate head | |
| CN101422785B (en) | Method for adjusting middle-roller drunkenness in double cold reduction shadow-mask strip-steel machine | |
| CN100515593C (en) | Strip steel edge thickening comprehensive control method for common four-roller hot strip steel continuous rolling mill | |
| CN102989786B (en) | Optimal control system of shape and thickness of steel plate | |
| CN108144971A (en) | It is suitable for roll profile optimization method of the six roller tandem mills with the prevention of quick-fried roller for target | |
| CN103861873A (en) | Texturing roll rolling system and method of UCMW tandem cold rolling mill | |
| CN103203368B (en) | Wedge control method for hot rolling strip steel | |
| CN102397873A (en) | Method for prolonging service life of patterned roller | |
| CN109877167B (en) | Tension influence coefficient analysis method for improving rolling stability of degree of freedom | |
| CN103962389B (en) | A kind of cooling water nozzle gradient that utilizes arranges the method controlling roll shape roll thermal crown | |
| CN110216152A (en) | A kind of control method improving the strip wedge shape rolled there are two-phase section | |
| CN109214017A (en) | For controlling the intermediate calender rolls roll contour design method of six roller UCM milling train edges drop | |
| CN204182679U (en) | Be suitable for large pony roll system and the bending system of the smooth double secondary cold-rolling unit of Stand Mill | |
| CN109261727B (en) | A kind of the roll shape setting method and system of mkw mill | |
| CN107150068B (en) | Six roller tin plate continuous annealing planisher rollers | |
| CN113020284B (en) | Method for controlling convexity of hot-rolled original plate for cold rolling galvanization | |
| CN104190709A (en) | 410L type ferrite stainless steel rolling method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |