CN106311756A - Method for avoiding reeling and scratching of hot continuous rolling stainless steel strip steel surface - Google Patents
Method for avoiding reeling and scratching of hot continuous rolling stainless steel strip steel surface Download PDFInfo
- Publication number
- CN106311756A CN106311756A CN201610885850.3A CN201610885850A CN106311756A CN 106311756 A CN106311756 A CN 106311756A CN 201610885850 A CN201610885850 A CN 201610885850A CN 106311756 A CN106311756 A CN 106311756A
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- CN
- China
- Prior art keywords
- pinch roll
- speed
- continuous rolling
- hot continuous
- stainless steel
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- 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.)
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Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B2015/0057—Coiling the rolled product
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
Abstract
The invention relates to the technical field of hot continuous rolling, in particular to a method for avoiding reeling and scratching of a hot continuous rolling stainless steel strip steel surface. The method for avoiding reeling and scratching of the hot continuous rolling stainless steel strip steel surface comprises the steps that the difference value between the actual speed of an upper pinch roll and the actual speed of a lower pinch roll is calculated, and if the absolute value of the difference value is larger than or equal to 0.5m/s, it shows that the speed difference exists in strip steel, and the stainless steel surface is scratched. The method has the beneficial effects that the phenomenon that in the reeling process, the up and down speeds of the pinch rolls are inconsistent is identified, through adjustment of pressure control parameters of the pinch rolls, the problem that in the reeling process of the hot continuous rolling stainless steel strip steel, the surface is scratched is solved, the strip steel product quality is ensured, and stable control over a hot continuous rolling reeling machine is achieved.
Description
Technical field
The present invention relates to hot continuous rolling technical field, specifically one avoids thermal tandem rolling stainless steel band steel surface reel abrasive
Method.
Background technology
After hot continuous rolling coiling machine has rolled up stainless steel strip, uncoiling finds that coil of strip surface has scratch to export strip steel table in finish rolling
Face quality examination instrument does not has any vestige.When corrosion resistant plate shape and equipment state change, owing to coiling coater parameter can not be fitted
Should change and arise that when batching coil that upper and lower pinch roll speed is inconsistent and have speed difference thus cause belt steel surface to abrade,
Seriously govern being normally carried out of the quality of production.
Summary of the invention
The technical problem to be solved is: how coiling machine region realize quickly identifying and solve due on,
The scratching that bottom pinch roll speed difference causes.
The technical solution adopted in the present invention is: one avoids the thermal tandem rolling stainless steel band abrasive method of steel surface reel,
Top pinch roll and bottom pinch roll are respectively mounted the speed measuring instrumentation for detecting real-time speed, calculate top pinch roll reality speed
Degree and the difference of bottom pinch roll actual speed, if more than or equal to 0.5m/s, the absolute value of this difference i.e. shows that strip steel exists speed
Difference will result in stainless steel surfaces scratch, now adjusts top pinch roll and the force value of bottom pinch roll, until top pinch roll is actual
Speed is less than 0.5m/s with the absolute value of the difference of bottom pinch roll actual speed.
The invention has the beneficial effects as follows: the present invention identifies the phenomenon that the upper and lower speed of pinch roll in coiling process is inconsistent,
And can solve, by adjusting Withdrawal roll pressure control parameter, the surface wiping that thermal tandem rolling stainless steel band steel occurs in coiling process
Hinder problem, it is ensured that belt steel product quality, it is achieved that hot continuous rolling coiling machine stability contorting.
Detailed description of the invention
Strip steel is during coiling machine normally batches, and strip speed, spool velocity, upper bottom pinch roll speed are uniform synchronization
's.Control to be band Stress control during coil due to pinch roll, therefore go up bottom pinch roll speed inconsistent i.e. fast with strip steel
Spend the asynchronous belt steel surface that will result in abrade.To this end, calculate folder in real time according to the values for actual speed size of upper bottom pinch roll
Send roller velocity deviation and judge that display, on taking-up activities key frame, is used for pointing out operative employee to need and revises corresponding Withdrawal roll pressure
Control parameter, to ensure to batch upper bottom pinch roll speeds match Tong Bu with strip steel.Deviation value is calculated as top pinch roll reality speed
Degree deducts bottom pinch roll actual speed, when this deviation value is more than or equal to 0.5m/s or i.e. shows that strip steel is deposited less than or equal to-0.5m/s
Will result in stainless steel surfaces scratch at speed difference, operative employee must revise Withdrawal roll pressure from picture and control parameter, until
Eliminate alarm.Revising principle: report to the police on former Withdrawal roll pressure coefficient basis according to picture, increasing pressure coefficient until reporting
Alert elimination.
Implementation process of the present invention is entirely in computer-controlled program calculating and judges and revised corresponding control by operative employee
Parameter realizes, and it to carry out parameter modification according to the pinch roll velocity deviation alarm batched on key frame.Main process
It is: increase coiling clamp roller pressure controling parameter according to alarm to carry until eliminating the warning of upper and lower pinch roll velocity deviation
Show.
After Taiyuan Iron and Steel Co. hot continuous rolling factory coiling coater uses the method, effect is as follows:
(1) achieve the stability contorting that hot continuous rolling batches, saved adjustment and processed the time.
(2) ensure that hot continuous rolling coiling machine control, solve stainless steel surfaces scratching, improve conforming product rate,
Decrease fall to sentence, obtain annual about 5,000,000 yuan of direct economic benefit.
Claims (1)
1. avoid the thermal tandem rolling stainless steel band abrasive method of steel surface reel for one kind, it is characterised in that: at top pinch roll and lower folder
Send the speed measuring instrumentation being respectively mounted on roller for detecting real-time speed, calculate top pinch roll actual speed actual with bottom pinch roll
The difference of speed, if more than or equal to 0.5m/s, the absolute value of this difference i.e. shows that strip steel exists speed difference and will result in rustless steel
Galled spots, now adjusts top pinch roll and the force value of bottom pinch roll, until top pinch roll actual speed is real with bottom pinch roll
The absolute value of the difference of border speed is less than 0.5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885850.3A CN106311756B (en) | 2016-10-11 | 2016-10-11 | One kind avoids thermal tandem rolling stainless steel band steel surface from batching abrasive method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610885850.3A CN106311756B (en) | 2016-10-11 | 2016-10-11 | One kind avoids thermal tandem rolling stainless steel band steel surface from batching abrasive method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106311756A true CN106311756A (en) | 2017-01-11 |
| CN106311756B CN106311756B (en) | 2019-02-12 |
Family
ID=57821053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610885850.3A Active CN106311756B (en) | 2016-10-11 | 2016-10-11 | One kind avoids thermal tandem rolling stainless steel band steel surface from batching abrasive method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106311756B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451250Y (en) * | 2000-11-29 | 2001-10-03 | 宝山钢铁股份有限公司 | Pinch roll operating mode analog device |
| CN102039330A (en) * | 2010-10-16 | 2011-05-04 | 山西太钢不锈钢股份有限公司 | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab |
| CN102806250A (en) * | 2012-08-02 | 2012-12-05 | 山西太钢不锈钢股份有限公司 | Method for flatting stainless steel strips |
| CN102886394A (en) * | 2011-07-19 | 2013-01-23 | 宝山钢铁股份有限公司 | Tension straightening method and device for wide and thick sheet metal straightener |
| EP2644291A1 (en) * | 2012-03-29 | 2013-10-02 | Cockerill Maintenance & Ingenierie S.A. | Entry section of a pickling line, of a continuous tandem cold mill (tcm) or of a pickling line coupled to tandem cold mill (pl/tcm) installation |
| CN103521554A (en) * | 2013-09-02 | 2014-01-22 | 北京金自天正智能控制股份有限公司 | Method for preventing tail part of band steel from loop rising in front of coiling machine |
| CN104275349A (en) * | 2014-07-02 | 2015-01-14 | 浙江富春环保新材料有限公司 | Rolling mill with speed measuring and pressure regulating structure |
-
2016
- 2016-10-11 CN CN201610885850.3A patent/CN106311756B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2451250Y (en) * | 2000-11-29 | 2001-10-03 | 宝山钢铁股份有限公司 | Pinch roll operating mode analog device |
| CN102039330A (en) * | 2010-10-16 | 2011-05-04 | 山西太钢不锈钢股份有限公司 | Parameter setting method of hot continuous rolling thin slab coiling device and coiling method of hot continuous rolling thin slab |
| CN102886394A (en) * | 2011-07-19 | 2013-01-23 | 宝山钢铁股份有限公司 | Tension straightening method and device for wide and thick sheet metal straightener |
| EP2644291A1 (en) * | 2012-03-29 | 2013-10-02 | Cockerill Maintenance & Ingenierie S.A. | Entry section of a pickling line, of a continuous tandem cold mill (tcm) or of a pickling line coupled to tandem cold mill (pl/tcm) installation |
| CN102806250A (en) * | 2012-08-02 | 2012-12-05 | 山西太钢不锈钢股份有限公司 | Method for flatting stainless steel strips |
| CN103521554A (en) * | 2013-09-02 | 2014-01-22 | 北京金自天正智能控制股份有限公司 | Method for preventing tail part of band steel from loop rising in front of coiling machine |
| CN104275349A (en) * | 2014-07-02 | 2015-01-14 | 浙江富春环保新材料有限公司 | Rolling mill with speed measuring and pressure regulating structure |
Non-Patent Citations (1)
| Title |
|---|
| DENGJINGJI1986: "热轧卷取机夹送辊对板带表面质量影响", 《百度文库，HTTPS://WENKU.BAIDU.COM/VIEW/24D4003187C24028915FC358.HTML》 * |
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| Publication number | Publication date |
|---|---|
| CN106311756B (en) | 2019-02-12 |
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