CN101733308A - Protection method of straightening force of inlet and outlet of hot straightening machine - Google Patents
Protection method of straightening force of inlet and outlet of hot straightening machine Download PDFInfo
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- CN101733308A CN101733308A CN200810228831A CN200810228831A CN101733308A CN 101733308 A CN101733308 A CN 101733308A CN 200810228831 A CN200810228831 A CN 200810228831A CN 200810228831 A CN200810228831 A CN 200810228831A CN 101733308 A CN101733308 A CN 101733308A
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Abstract
The invention relates to a protection method of straightening force of the inlet and outlet of a hot straightening machine. The method is characterized in that the straightening forces of the inlet and outlet of the hot straightening machine are respectively set a protection value, and then are set to be configurable values for grouping protection according to different steel plate thicknesses. The invention has the advantages that the straightening forces of the inlet and outlet of the hot straightening machine are respectively set a protection value, and then are set to be grouping protection according to different steel plate thicknesses, thereby effectively avoiding the occurrence of roll breakage accidents.
Description
Technical field
The present invention relates to a kind of thermal straightening machine entrance and the guard method of outlet straightening force.
Background technology
In the prior art; thermal straightening machine straightening force defencive function is to calculate straightening force according to the aligning model to multiply by 1.2 times as the protection setting value, 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.The given entrance of straightening force model and outlet roll gap difference are bigger, and the value of fascinating reaches 7mm, cause the entrance 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 export smoothing roll protection for entrance.
Summary of the invention
The purpose of this invention is to provide a kind of increase entrance and outlet defencive function, avoid taking place a kind of thermal straightening machine entrance and the guard method of outlet straightening force of roll breakage accident.
The present invention is achieved through the following technical solutions:
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 as follows:
With lower steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 16000KN for 16mm;
For the 16-25mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 15000KN;
For the 25-40mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 14000KN;
For the 40-60mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 12000KN;
For the 60-80mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 10000KN;
For the 80-120mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 8000KN.
Advantage of the present invention is: thermal straightening machine entrance and outlet straightening force are set respectively the protection value, are set to packet protection according to the steel plate thickness difference, can effectively avoid the generation of roll breakage accident.
The specific embodiment
This method is by calculating different cultivars specification steel plate straightening force and statistical history roll breakage record as basis of design; increase entrances 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 as follows:
With lower steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 16000KN for 16mm;
For the 16-25mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 15000KN;
For the 25-40mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 14000KN;
For the 40-60mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 12000KN;
For the 60-80mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 10000KN;
For the 80-120mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 8000KN.
Claims (2)
1. a thermal straightening machine entrance and the guard method of outlet straightening force is characterized in that, thermal straightening machine entrance and outlet straightening force are set respectively the protection value, are set to the configurable value of packet protection according to the steel plate thickness difference.
2. a kind of thermal straightening machine inlet according to claim 1 and the guard method of outlet straightening force is characterized in that the configurable value of described packet protection is as follows:
With lower steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 16000KN for 16mm;
For the 16-25mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 15000KN;
For the 25-40mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 14000KN;
For the 40-60mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 12000KN;
For the 60-80mm steel plate, thermal straightening machine entrance and outlet straightening force protection value are set at 10000KN;
For the 80-120mm steel plate, thermal straightening machine entrance 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 | Protection method of 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 | Protection method of straightening force of inlet and outlet of hot straightening machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733308A true CN101733308A (en) | 2010-06-16 |
| CN101733308B 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 | Protection method of straightening force of inlet and outlet of hot straightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101733308B (en) |
Family Cites Families (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. |
| US5255548A (en) * | 1992-03-02 | 1993-10-26 | Mesta International | Method for roller levelling of heavy plate |
| US5189896A (en) * | 1992-03-02 | 1993-03-02 | Mesta International | Single stand roller leveller for 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 |
| CN1193836C (en) * | 2001-10-19 | 2005-03-23 | 中国第二重型机械集团公司 | Plate and band material roll gap adjustable flattening machine |
| DE102004041732A1 (en) * | 2004-08-28 | 2006-03-02 | Sms Demag Ag | Method of 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 |
| CN101722213B (en) * | 2009-11-25 | 2011-05-25 | 南京钢铁股份有限公司 | Straightening process of high-strength steel plate |
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2008
- 2008-11-17 CN CN2008102288319A patent/CN101733308B/en active Active
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| Publication number | Publication date |
|---|---|
| CN101733308B (en) | 2012-02-01 |
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