CN102363160A - Method for adjusting zero of rolling mill for producing checkered plates - Google Patents
Method for adjusting zero of rolling mill for producing checkered plates Download PDFInfo
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- CN102363160A CN102363160A CN2011103698308A CN201110369830A CN102363160A CN 102363160 A CN102363160 A CN 102363160A CN 2011103698308 A CN2011103698308 A CN 2011103698308A CN 201110369830 A CN201110369830 A CN 201110369830A CN 102363160 A CN102363160 A CN 102363160A
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- pressure
- zero
- acyclic homologically
- homologically trioial
- roll gap
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Abstract
The invention discloses a method for adjusting zero of a rolling mill for producing checkered plates. The whole automatic gain control (AGC) process adopts a checkered plate control mode, a static light pressure zero adjusting method is adopted, namely a rotation speed of the rolling mill is 0mpm, the zero adjusting pressure of a hydraulic cylinder is 680-720-ton rolling pressure, an initial value after differential pressure of a roll gap is leveled is used as a mechanical zero adjusting effective value, and the final roll gap zero position is determined. After pattern rollers are installed, a reliably zero roll gap of the rolling mill is determined through static zero adjustment, and upper and lower working rollers can be prevented from rubbing to avoid mutual bite of the rollers.
Description
Technical field
The present invention relates to the hot continuous rolling technical field, be particularly related to a kind of milling train acyclic homologically trioial method of producing diamond plate.
Background technology
Depress rollingly in the rolling employing of diamond plate, the upper and lower roll difference in diameter is revised according to the preceding sliding parameter of finishing mill.Because the poor 2 ~ 5mm that reaches in upper and lower roll footpath; If milling train is during according to 1000 tons of operations of the acyclic homologically trioial pressure of normal rolling flat board; Certainly lead to bigger rubbing between the upper and lower working roll, roll is chewed each other, and increased the hertz stress variation that backing roll contacts with working roll; The cutting wedge angle position of patterned roll can produce extremely strong stress concentration phenomenon simultaneously, reduces the service life of roll.Roller footpath poor bigger, rotating speed is high more, the roll part loses flesh, the risk of gear-box damage is big more.Domestic many families produce diamond plate unit when carrying out the milling train acyclic homologically trioial with conventional acyclic homologically trioial speed; Make hydraulic pressure depress to 100 tons; The artificial then overhang difference of noting down hydraulic cylinder with 1000 tons of acyclic homologically trioial pressure of conventional plain-barreled roll down of revising is confirmed final roll gap zero-bit with the zero clearing of overhang difference magnetic scale.The whole implementation process of this method needs nearly 8 minutes clock times, and time is longer, and because acyclic homologically trioial pressure is less than normal, and the mill spring curve is non-linear, the intermesh determination low precision, open rolling initial stage diamond plate thickness hit rate is on the low side.Based on above-mentioned situation, the method that designs a kind of fast effective patterned roll acyclic homologically trioial is very necessary.
Summary of the invention
By Given this, the invention provides a kind of milling train acyclic homologically trioial method of producing diamond plate, finish the back at patterned roll dress roller and adopt static acyclic homologically trioial to confirm milling train roll gap at relatively reliable zero point, prevent upper and lower working roll generation rubbing, cause chewing each other of roll shop building.
To achieve these goals, the present invention adopts following technical scheme:
A kind of milling train acyclic homologically trioial method of producing diamond plate; Wherein, whole diamond plate operation of rolling AGC is the diamond plate control model, adopts passive light pressure acyclic homologically trioial method; Be that the milling train velocity of rotation is 0mpm; Hydraulic cylinder acyclic homologically trioial pressure is 680-720 ton draught pressure, and is initially effective as mechanical acyclic homologically trioial after the leveling of roll gap pressure reduction, confirms final roll gap zero-bit.
Further, said hydraulic cylinder acyclic homologically trioial pressure is 700 tons of draught pressures.
Beneficial effect of the present invention is:
Time of the present invention is short; The intermesh determination low precision; This patterned roll acyclic homologically trioial method adopts static acyclic homologically trioial to confirm milling train roll gap at relatively reliable zero point for finish the back at patterned roll dress roller, prevents upper and lower working roll generation rubbing, causes chewing each other of roll shop building; Hydraulic cylinder is depressed 700 tons of draught pressures automatically, under this pressure condition, and mill spring curve approximation straight line, this method can be finished the milling train acyclic homologically trioial in 1 minute, and guaranteed the mill roll-gap setting accuracy; While work roll surface hardness: HRS 70 ~ 80, and the material infinitely chilled ductile cast iron is not owing under the little situation of acyclic homologically trioial pressure, have the surface to weigh wounded with the supporting lower roll of patterned roll, the control requirement of accords with production quality.
The specific embodiment
Below in conjunction with embodiment the present invention is further specified:
The present invention adopts static acyclic homologically trioial to confirm milling train roll gap at relatively reliable zero point for finish the back at patterned roll dress roller, prevents upper and lower working roll generation rubbing, causes chewing each other of roll shop building; So milling train main transmission is not rotated, promptly transmission speed is 0mpm, and hydraulic cylinder is depressed 680-720 ton draught pressure automatically; Initially effective after the leveling of roll gap pressure reduction as mechanical acyclic homologically trioial; Confirm final roll gap zero-bit, under this pressure condition, mill spring curve approximation straight line; This method can be finished the milling train acyclic homologically trioial in 1 minute, and guaranteed the mill roll-gap setting accuracy.While work roll surface hardness: HRS 70 ~ 80, and the material infinitely chilled ductile cast iron is not owing under the little situation of acyclic homologically trioial pressure, have the surface to weigh wounded with the supporting lower roll of patterned roll, the control requirement of accords with production quality.
Embodiment 1:
1. select patterned roll acyclic homologically trioial pattern before the acyclic homologically trioial; 2. automatic mode is selected in AGC control; 3. manually carry out light pressure and depress the automatic acyclic homologically trioial of back selection; 4. AGC control depresses to 680 tons, confirms relative zero-bit; 5. AGC pressure at both sides difference is carried out automatic leveling; 6. keep PLATE MODE, the condition of resuming production after manually changing trains or buses.
Embodiment 2:
1. select patterned roll acyclic homologically trioial pattern before the acyclic homologically trioial; 2. automatic mode is selected in AGC control; 3. manually carry out light pressure and depress the automatic acyclic homologically trioial of back selection; 4. AGC control depresses to 700 tons, confirms relative zero-bit; 5. AGC pressure at both sides difference is carried out automatic leveling; 6. keep PLATE MODE, the condition of resuming production after manually changing trains or buses.
Embodiment 3:
1. select patterned roll acyclic homologically trioial pattern before the acyclic homologically trioial; 2. automatic mode is selected in AGC control; 3. manually carry out light pressure and depress the automatic acyclic homologically trioial of back selection; 4. AGC control depresses to 720 tons, confirms relative zero-bit; 5. AGC pressure at both sides difference is carried out automatic leveling; 6. keep PLATE MODE, the condition of resuming production after manually changing trains or buses.
Explanation is at last; Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Other modifications that those of ordinary skills make technical scheme of the present invention perhaps are equal to replacement; Only otherwise break away from the spirit and the scope of technical scheme of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (2)
1. milling train acyclic homologically trioial method of producing diamond plate; It is characterized in that: whole diamond plate operation of rolling AGC is the diamond plate control model; Adopt passive light pressure acyclic homologically trioial method, promptly the milling train velocity of rotation is 0mpm, and hydraulic cylinder acyclic homologically trioial pressure is 680-720 ton draught pressure; Initially effective after the leveling of roll gap pressure reduction as mechanical acyclic homologically trioial, confirm final roll gap zero-bit.
2. a kind of milling train acyclic homologically trioial method of producing diamond plate according to claim 1, it is characterized in that: said hydraulic cylinder acyclic homologically trioial pressure is 700 tons of draught pressures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103698308A CN102363160A (en) | 2011-11-21 | 2011-11-21 | Method for adjusting zero of rolling mill for producing checkered plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103698308A CN102363160A (en) | 2011-11-21 | 2011-11-21 | Method for adjusting zero of rolling mill for producing checkered plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102363160A true CN102363160A (en) | 2012-02-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103698308A Pending CN102363160A (en) | 2011-11-21 | 2011-11-21 | Method for adjusting zero of rolling mill for producing checkered plates |
Country Status (1)
| Country | Link |
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| CN (1) | CN102363160A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399476A (en) * | 2021-06-21 | 2021-09-17 | 重庆钢铁股份有限公司 | Zero adjustment accounting protection method for rolling mill |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238714A (en) * | 1985-08-10 | 1987-02-19 | Toshiba Corp | Roll gap setting device for rolling mill |
| 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 |
| CN101927269A (en) * | 2009-10-22 | 2010-12-29 | 中冶赛迪工程技术股份有限公司 | Method for adjusting three-roll mill roll gap controller |
| WO2011129453A1 (en) * | 2010-04-13 | 2011-10-20 | 新日本製鐵株式会社 | Rolling mill and zero ajustment process in rolling mill |
-
2011
- 2011-11-21 CN CN2011103698308A patent/CN102363160A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238714A (en) * | 1985-08-10 | 1987-02-19 | Toshiba Corp | Roll gap setting device for rolling mill |
| 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 |
| CN101927269A (en) * | 2009-10-22 | 2010-12-29 | 中冶赛迪工程技术股份有限公司 | Method for adjusting three-roll mill roll gap controller |
| WO2011129453A1 (en) * | 2010-04-13 | 2011-10-20 | 新日本製鐵株式会社 | Rolling mill and zero ajustment process in rolling mill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399476A (en) * | 2021-06-21 | 2021-09-17 | 重庆钢铁股份有限公司 | Zero adjustment accounting protection method for rolling mill |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120229 |