CN101733308B - Method for protecting straightening force of inlet and outlet of hot straightening machine - Google Patents
Method for protecting straightening force of inlet and outlet of hot straightening machine Download PDFInfo
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- CN101733308B CN101733308B CN2008102288319A CN200810228831A CN101733308B CN 101733308 B CN101733308 B CN 101733308B CN 2008102288319 A CN2008102288319 A CN 2008102288319A CN 200810228831 A CN200810228831 A CN 200810228831A CN 101733308 B CN101733308 B CN 101733308B
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- straightening
- inlet
- steel plate
- straightening machine
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 25
- 239000010959 steel Substances 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 abstract description 4
- 230000002153 concerted effect Effects 0.000 description 2
- 238000009499 grossing Methods 0.000 description 1
- 238000012821 model calculation Methods 0.000 description 1
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- Straightening Metal Sheet-Like Bodies (AREA)
Abstract
The invention relates to a method for protecting straightening force of an inlet and an outlet of a hot straightening machine. The method is characterized in that the straightening forces of the inlet and the outlet of the hot straightening machine are respectively set to be protective values, and the protective values are set to be configurable values for group protection according to different thicknesses of steel plates. The invention has the advantages that: the straightening forces at the inlet and the outlet of the hot straightening machine are respectively set to be protective values, and are set to be grouping protection according to different thicknesses of steel plates, so that the roll breakage accident can be effectively avoided.
Description
Technical field
The present invention relates to a kind of thermal straightening machine inlet and the guard method of outlet straightening force.
Background technology
In the prior art; Thermal straightening machine straightening force defencive function is to multiply by 1.2 times as the protection setting value according to aligning Model Calculation straightening force, and this method only plays the protection of making a concerted effort, and is inaccurate; When aligning high strength kind, can not play due protective effect, often cause taking place roll breakage accident.Given inlet of straightening force model and outlet roll gap difference are bigger, and the value of fascinating reaches 7mm, cause the inlet straightening force bigger about 2 times than the outlet straightening force, and original protection is set at the protection of making a concerted effort, and can not protect to inlet outlet smoothing roll.
Summary of the invention
The purpose of this invention is to provide a kind of increase inlet and outlet defencive function, avoid taking place a kind of thermal straightening machine inlet and the guard method of outlet straightening force of roll breakage accident.
The present invention realizes through following technical scheme:
A kind of thermal straightening machine inlet and the guard method of outlet straightening force, thermal straightening machine inlet and outlet straightening force are set the protection value respectively, are set to the configurable value of packet protection according to steel plate thickness difference.
The configurable value of described packet protection is following:
With lower steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 16000KN for 16mm;
For the 16-25mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 15000KN;
For the 25-40mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 14000KN;
For the 40-60mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 12000KN;
For the 60-80mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 10000KN;
For the 80-120mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 8000KN.
Advantage of the present invention is: thermal straightening machine inlet and outlet straightening force are set the protection value respectively, are set to packet protection based on steel plate thickness difference, can effectively avoid the generation of roll breakage accident.
The specific embodiment
This method is through calculating different cultivars specification steel plate straightening force and statistical history roll breakage record as basis of design; Increase inlet and outlet straightening force packet protection function according to different steel plate thickness, total straightening force multiple is modified as the configurable value of straightening force multiple by fixing 1.2.
Be specifically described as follows:
The configurable value of described packet protection is following:
With lower steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 16000KN for 16mm;
For the 16-25mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 15000KN;
For the 25-40mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 14000KN;
For the 40-60mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 12000KN;
For the 60-80mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 10000KN;
For the 80-120mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 8000KN.
Claims (1)
1. a thermal straightening machine enters the mouth and the guard method of outlet straightening force, it is characterized in that thermal straightening machine inlet and outlet straightening force are set the protection value respectively, are set to the configurable value of packet protection according to steel plate thickness difference; The configurable value of described packet protection is following:
With lower steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 16000KN for 16mm;
For the 16-25mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 15000KN;
For the 25-40mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 14000KN;
For the 40-60mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 12000KN;
For the 60-80mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 10000KN;
For the 80-120mm steel plate, thermal straightening machine inlet and outlet straightening force protection value are set at 8000KN.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102288319A CN101733308B (en) | 2008-11-17 | 2008-11-17 | Method for protecting straightening force of inlet and outlet of hot straightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102288319A CN101733308B (en) | 2008-11-17 | 2008-11-17 | Method for protecting straightening force of inlet and outlet of hot straightening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733308A CN101733308A (en) | 2010-06-16 |
| CN101733308B true CN101733308B (en) | 2012-02-01 |
Family
ID=42457629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102288319A Active CN101733308B (en) | 2008-11-17 | 2008-11-17 | Method for protecting straightening force of inlet and outlet of hot straightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101733308B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3840016A1 (en) * | 1988-11-26 | 1990-05-31 | Schloemann Siemag Ag | METHOD FOR LEVELING SHEETS, STRIPS, TABLES, PROFILES, CARRIERS ETC. |
| US5189896A (en) * | 1992-03-02 | 1993-03-02 | Mesta International | Single stand roller leveller for heavy plate |
| US5255548A (en) * | 1992-03-02 | 1993-10-26 | Mesta International | Method for roller levelling of heavy plate |
| CN1411925A (en) * | 2001-10-19 | 2003-04-23 | 中国第二重型机械集团公司 | Plate and band material roll gap adjustable flattening machine |
| JP3722936B2 (en) * | 1997-01-09 | 2005-11-30 | 三菱重工業株式会社 | Multi-sequential continuous distortion correction device |
| CN101068631A (en) * | 2004-08-28 | 2007-11-07 | 西马克·德马格公司 | Method for straightening a metal strip and straightening machine |
| 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 |
| CN101722213A (en) * | 2009-11-25 | 2010-06-09 | 南京钢铁股份有限公司 | Straightening process of high-strength steel plate |
-
2008
- 2008-11-17 CN CN2008102288319A patent/CN101733308B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3840016A1 (en) * | 1988-11-26 | 1990-05-31 | Schloemann Siemag Ag | METHOD FOR LEVELING SHEETS, STRIPS, TABLES, PROFILES, CARRIERS ETC. |
| US5189896A (en) * | 1992-03-02 | 1993-03-02 | Mesta International | Single stand roller leveller for heavy plate |
| US5255548A (en) * | 1992-03-02 | 1993-10-26 | Mesta International | Method for roller levelling of heavy plate |
| JP3722936B2 (en) * | 1997-01-09 | 2005-11-30 | 三菱重工業株式会社 | Multi-sequential continuous distortion correction device |
| CN1411925A (en) * | 2001-10-19 | 2003-04-23 | 中国第二重型机械集团公司 | Plate and band material roll gap adjustable flattening machine |
| CN101068631A (en) * | 2004-08-28 | 2007-11-07 | 西马克·德马格公司 | Method for straightening a metal strip and straightening machine |
| 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 |
| CN101722213A (en) * | 2009-11-25 | 2010-06-09 | 南京钢铁股份有限公司 | Straightening process of high-strength steel plate |
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| Publication number | Publication date |
|---|---|
| CN101733308A (en) | 2010-06-16 |
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