CN101733308B - 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 PDF

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Publication number
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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China
Prior art keywords
outlet
straightening
steel plate
inlet
straightening machine
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Application number
CN2008102288319A
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Chinese (zh)
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CN101733308A (en
Inventor
张琳
杨洲
王小强
吴海泉
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Angang Steel Co Ltd
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Angang Steel Co Ltd
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Priority to CN2008102288319A priority Critical patent/CN101733308B/en
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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

A kind of thermal straightening machine inlet and the guard method of outlet straightening force
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.
CN2008102288319A 2008-11-17 2008-11-17 Protection method of straightening force of inlet and outlet of hot straightening machine Active CN101733308B (en)

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 CN101733308A (en) 2010-06-16
CN101733308B true CN101733308B (en) 2012-02-01

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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)

Citations (8)

* Cited by examiner, † Cited by third party
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

Patent Citations (8)

* Cited by examiner, † Cited by third party
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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