CN107282696A - Straightening method for steel plate with serious bad plate shape - Google Patents
Straightening method for steel plate with serious bad plate shape Download PDFInfo
- Publication number
- CN107282696A CN107282696A CN201610203109.4A CN201610203109A CN107282696A CN 107282696 A CN107282696 A CN 107282696A CN 201610203109 A CN201610203109 A CN 201610203109A CN 107282696 A CN107282696 A CN 107282696A
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- China
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- steel plate
- thickness
- straightening
- cold
- cold straightener
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 59
- 239000010959 steel Substances 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims abstract description 4
- 238000009499 grossing Methods 0.000 claims description 4
- 238000012797 qualification Methods 0.000 abstract description 4
- 238000011084 recovery Methods 0.000 abstract description 4
- 230000001960 triggered effect Effects 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000006870 function Effects 0.000 description 9
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
Abstract
The invention provides a straightening method of a steel plate with seriously bad plate shape, which is characterized in that a straightening roller is lifted to a limit position, and a cold straightening machine enters a passing mode; manually leading the head of the steel plate to pass through a first straightening roller at the inlet of a cold straightening machine; inputting a material number and a steel mark on an operation picture; inputting the actual Thickness of the steel plate plus 0.15-0.25 mm in the 'Thickness' column of the operation picture, and if the protection function of the cold straightening machine is not triggered, subtracting 0.08-0.12 mm from the current Thickness; if not, continuing to reduce by 0.08-0.12 mm each time until a protection function is triggered; after triggering, carrying out power transmission recovery operation on the cold straightening machine, determining the thickness as a limit value of the protection function which is not triggered, and carrying out straightening operation according to the limit value; for the steel plate with serious buckling or warping, a normal steel plate is respectively arranged in front of and behind the steel plate to assist the steel plate to be straightened to move forward or backward. The method can effectively rescue the steel plate with serious badness of the plate shape, avoid the phenomenon of roller blocking, and improve the qualification rate and the yield of the plate shape.
Description
Technical field
There is serious wooden dipper song and button nose situation the invention belongs to steel rolling process technical field, more particularly to one kind
The serious bad steel plate of plate shape cold straightening method.
Background technology
Cold straightener, as the essential equipment of Heavy Plate Plant, is that up to standard provide of steel plate flatness ensures.
It is to meet standard by automatic flattening for general steel plate；But for some plate shape wooden dipper Qu Yanchong or button
, then there is card roller-way or cannot be introduced into the phenomenon that cold straightener is aligned, make in the serious steel plate of head, nose
Scrapped into steel plate because of deformed steel strip, directly affects plate shape qualification rate and lumber recovery.
The content of the invention
The present invention is intended to provide a kind of can effectively be saved to the serious bad steel plate of plate shape, so as to improve plate
Bent and button nose steel plate the method for aligning of the wooden dipper of shape qualification rate and lumber recovery.
Therefore, the technical solution that the present invention is taken is：
A kind of method for aligning of the serious bad steel plate of plate shape, be specially：
(1) before aligning, the smoothing roll of cold straightener is first increased to extreme position, and enter cold straightener
Pass through pattern；
(2) steel plate is sent into cold straightener manually, steel plate head is passed through first aligning of cold straightener entrance
Stop after roller；
(3) in operation screen input steel plate material number and steel trade mark information；
(4) in the column input thickness of operation screen " Thickness " one, the thickness of input is actual thick for steel plate
Degree Jia 0.15~0.25mm, does not such as trigger cold straightener defencive function, then thickness is finely adjusted, adjusted value
0.08~0.12mm is subtracted for current thickness；If not triggering cold straightener defencive function yet, continue with thickness
Reduce by 0.08~0.12mm every time to be adjusted, until trigger protection function；
(5) after trigger protection function, cold straightener is carried out to recover power transmission operation, thickness is defined as not triggering
The limiting value of defencive function, and straightening operation is carried out to steel plate with this thickness value；
(6) for the steel plate that wooden dipper is bent or button nose is serious, take and respectively placing one piece just before and after straightening steel plate is treated
The mode of normal steel plate, auxiliary treats that straightening steel plate advances or retreated, to prevent steel plate clamp roller-way phenomenon.
Beneficial effects of the present invention are：
The present invention can effectively be saved to the serious bad steel plate of the plate shape such as wooden dipper song and button nose, it is to avoid steel plate
Card roller-way phenomenon, improves plate shape qualification rate and lumber recovery.
Embodiment
The specific method for aligning of the serious bad steel plate of plate shape of the present invention is：
1st, before aligning, the smoothing roll of cold straightener is first increased to extreme position, and it is logical to enter cold straightener
Cross pattern.
2nd, steel plate is sent into cold straightener manually, steel plate head is passed through first smoothing roll of cold straightener entrance
After stop.
3rd, steel plate material number and steel trade mark information are inputted in operation screen.
4th, in the column input thickness of operation screen " Thickness " one, the thickness of input is steel plate actual (real) thickness
Plus 0.2mm, cold straightener defencive function is not such as triggered, then thickness is finely adjusted, adjusted value is current thickness
(i.e. steel plate actual (real) thickness adds 0.2mm) subtracts 0.1mm again；If not triggering cold straightener defencive function yet,
The amplitude for continuing to reduce 0.1mm every time with thickness is adjusted, until trigger protection function.
5th, after trigger protection function, cold straightener is carried out to recover power transmission operation, thickness is defined as not triggering guarantor
The limiting value of protective function, and straightening operation is carried out to steel plate with this thickness value.
6th, for the steel plate that wooden dipper is bent or button nose is serious, take each one piece of placement before and after straightening steel plate is treated normal
The mode of steel plate, auxiliary treats that straightening steel plate advances or retreated, to prevent steel plate clamp roller-way phenomenon.
Claims (1)
1. a kind of method for aligning of the serious bad steel plate of plate shape, it is characterised in that：
(1) before aligning, the smoothing roll of cold straightener is first increased to extreme position, and enter cold straightener
Pass through pattern；
(2) steel plate is sent into cold straightener manually, steel plate head is passed through first aligning of cold straightener entrance
Stop after roller；
(3) in operation screen input steel plate material number and steel trade mark information；
(4) in the column input thickness of operation screen " Thickness " one, the thickness of input is actual thick for steel plate
Degree Jia 0.15~0.25mm, does not such as trigger cold straightener defencive function, then thickness is finely adjusted, adjusted value
0.08~0.12mm is subtracted for current thickness；If not triggering cold straightener defencive function yet, continue with thickness
Reduce by 0.08~0.12mm every time to be adjusted, until trigger protection function；
(5) after trigger protection function, cold straightener is carried out to recover power transmission operation, thickness is defined as not triggering
The limiting value of defencive function, and straightening operation is carried out to steel plate with this thickness value；
(6) for the steel plate that wooden dipper is bent or button nose is serious, take and respectively placing one piece just before and after straightening steel plate is treated
The mode of normal steel plate, auxiliary treats that straightening steel plate advances or retreated, to prevent steel plate clamp roller-way phenomenon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203109.4A CN107282696A (en) | 2016-04-04 | 2016-04-04 | Straightening method for steel plate with serious bad plate shape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610203109.4A CN107282696A (en) | 2016-04-04 | 2016-04-04 | Straightening method for steel plate with serious bad plate shape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107282696A true CN107282696A (en) | 2017-10-24 |
Family
ID=60087331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610203109.4A Pending CN107282696A (en) | 2016-04-04 | 2016-04-04 | Straightening method for steel plate with serious bad plate shape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107282696A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273871A (en) * | 2018-04-09 | 2018-07-13 | 包头钢铁（集团）有限责任公司 | The method of low grade non-oriented silicon steel in coil opener aligning |
| CN108326078A (en) * | 2018-04-09 | 2018-07-27 | 包头钢铁（集团）有限责任公司 | The method that coil opener aligns mild steel |
| CN108526248A (en) * | 2018-04-09 | 2018-09-14 | 包头钢铁（集团）有限责任公司 | The method that coil opener aligns medium carbon steel |
| CN109821929A (en) * | 2019-03-19 | 2019-05-31 | 二重（德阳）重型装备有限公司 | Strip straightener and the method for reducing straightening blind area |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156515A (en) * | 1983-02-23 | 1984-09-05 | Sumitomo Metal Ind Ltd | Correcting method of flatness of thick steel plate |
| CN101716618A (en) * | 2009-11-13 | 2010-06-02 | 秦皇岛首秦金属材料有限公司 | Method for penetrating straightening steel plate of thermal straightening machine |
| CN102974623A (en) * | 2012-12-05 | 2013-03-20 | 南京钢铁股份有限公司 | Pre-straightening method for realizing plate shape control on medium and thick plates |
| CN103433334A (en) * | 2013-08-30 | 2013-12-11 | 鞍钢股份有限公司 | Straightening method for preventing buckling of steel plate |
| CN103962419A (en) * | 2014-04-24 | 2014-08-06 | 山西太钢不锈钢股份有限公司 | Method for improving shape of transversely-cut high-strength steel plate |
| CN104001757A (en) * | 2014-05-23 | 2014-08-27 | 南京钢铁股份有限公司 | Cold straightening process for high-strength thin plate |
-
2016
- 2016-04-04 CN CN201610203109.4A patent/CN107282696A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59156515A (en) * | 1983-02-23 | 1984-09-05 | Sumitomo Metal Ind Ltd | Correcting method of flatness of thick steel plate |
| CN101716618A (en) * | 2009-11-13 | 2010-06-02 | 秦皇岛首秦金属材料有限公司 | Method for penetrating straightening steel plate of thermal straightening machine |
| CN102974623A (en) * | 2012-12-05 | 2013-03-20 | 南京钢铁股份有限公司 | Pre-straightening method for realizing plate shape control on medium and thick plates |
| CN103433334A (en) * | 2013-08-30 | 2013-12-11 | 鞍钢股份有限公司 | Straightening method for preventing buckling of steel plate |
| CN103962419A (en) * | 2014-04-24 | 2014-08-06 | 山西太钢不锈钢股份有限公司 | Method for improving shape of transversely-cut high-strength steel plate |
| CN104001757A (en) * | 2014-05-23 | 2014-08-27 | 南京钢铁股份有限公司 | Cold straightening process for high-strength thin plate |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273871A (en) * | 2018-04-09 | 2018-07-13 | 包头钢铁（集团）有限责任公司 | The method of low grade non-oriented silicon steel in coil opener aligning |
| CN108326078A (en) * | 2018-04-09 | 2018-07-27 | 包头钢铁（集团）有限责任公司 | The method that coil opener aligns mild steel |
| CN108526248A (en) * | 2018-04-09 | 2018-09-14 | 包头钢铁（集团）有限责任公司 | The method that coil opener aligns medium carbon steel |
| CN109821929A (en) * | 2019-03-19 | 2019-05-31 | 二重（德阳）重型装备有限公司 | Strip straightener and the method for reducing straightening blind area |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171024 |
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| WD01 | Invention patent application deemed withdrawn after publication |