CN101733305A - Method for straightening steel plate - Google Patents

Method for straightening steel plate Download PDF

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Publication number
CN101733305A
CN101733305A CN200810228828A CN200810228828A CN101733305A CN 101733305 A CN101733305 A CN 101733305A CN 200810228828 A CN200810228828 A CN 200810228828A CN 200810228828 A CN200810228828 A CN 200810228828A CN 101733305 A CN101733305 A CN 101733305A
Authority
CN
China
Prior art keywords
steel plate
parallels
aligning
pressure
arc pad
Prior art date
Application number
CN200810228828A
Other languages
Chinese (zh)
Inventor
周洪庆
迟铭
张朝锋
Original Assignee
鞍钢股份有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 鞍钢股份有限公司 filed Critical 鞍钢股份有限公司
Priority to CN200810228828A priority Critical patent/CN101733305A/en
Publication of CN101733305A publication Critical patent/CN101733305A/en

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Abstract

The invention relates to a method for straightening a steel plate. A jack pressure straightener serving as a pressure source is adopted to perform extrusion and straightening on the steel plate; before straightening, two sizing blocks are arranged at proper positions under the steel plate, a cambered washer is fastened on each sizing block, the cambered washer is put on the steel plate, and the sizing block is arranged in a recess at the upper end of the cambered washer; and the jack pressure straightener is started, a pressure head presses downwards and extrudes the sizing block, and the pressure is transmitted to the cambered washer so as to extrude a deformed part of the steel plate. The method has the advantages of convenient use and good straightening effect, and effectively improves the efficiency and the quality of straightening the steel plate.

Description

A kind of method of straightening steel plate
Technical field
The present invention relates to a kind of method that improves plate quality, particularly a kind of method of straightening steel plate.
Background technology
Along with the development of society, the hot rolled slab quality requirement of iron and steel domain is more and more higher, and wherein the steel plate ratio of TMCP explained hereafter increases gradually, and its template has many GB standards that do not meet, and needs can deliver goods through aligning.Original method for aligning efficient is low, and parallels directly is pressed on the steel plate, and easily plate closer, leveling effect is poor, causes the waste product ratio high.
Summary of the invention
The present invention has overcome deficiency of the prior art, provides a kind of easy to use, the method for a kind of straightening steel plate that leveling effect is good.
In order to address the above problem, the present invention by the following technical solutions:
A kind of method of straightening steel plate adopts very heavy pressure to rectify and for pressure source steel plate is pushed aligning, and the concrete steps of this method are:
1) before the aligning, according to steel plate deformed state and deformation extent, two blocks of parallels and arc pad are placed in the appropriate location on the aligning platform, by roller-way steel plate are placed on the aligning platform;
2) select the steel plate position of pressurized at first according to the practical distortion of steel plate, put an arc pad in this position of steel plate upper surface, place parallels in the depression of arc pad upper end;
3) start very heavy pressure and rectify, pressure head presses down the extruding parallels, thereby pressure is delivered to arc pad pressing steel plate deformation place;
4) constantly adjust pad pressure spot position, parallels on the steel plate and arc pad adjust accordingly, and pressure head presses down each pressure spot position, meets the requirements up to steel plate.
Compared with prior art, the invention has the beneficial effects as follows:
By the arc pad is installed on parallels, avoided parallels that steel plate is extruded hole or scuffing, improved the qualification rate after steel plate is aligned greatly, improved the benefit of enterprise.
Description of drawings
Fig. 1 is the bent method for aligning schematic diagram of horizontal wooden dipper
Fig. 2, Fig. 3 are the schematic diagram of aligning thickness≤30mm steel plate;
Fig. 4 is the schematic diagram of aligning thickness 〉=30mm steel plate;
Fig. 5 is the bent method for aligning schematic diagram of length direction wooden dipper;
Fig. 6 is a bridge shape steel plate method for aligning schematic diagram;
Fig. 7 is the pad and the location drawing of aligning platform.
The specific embodiment
Embodiment one
The bent method for aligning of horizontal wooden dipper:
Adopt very heavy pressure to rectify and for pressure source steel plate is pushed aligning, the concrete steps of this method are:
1. before the aligning, according to steel plate deformed state and deformation extent, two blocks of parallels 3 and arc pad 2 are placed in the appropriate location on the aligning platform, by roller-way steel plate are placed on the aligning platform;
2. select the steel plate position of pressurized at first according to the practical distortion of steel plate, put an arc pad in this position of steel plate upper surface, place parallels in the depression of arc pad upper end;
3. start very heavy pressure and rectify, pressure head presses down the extruding parallels, thereby pressure is delivered to arc pad pressing steel plate deformation place;
4. constantly adjust pad pressure spot position, parallels on the steel plate and arc pad adjust accordingly, and pressure head presses down each pressure spot position, meets the requirements up to steel plate.
Thickness is aligned step smaller or equal to the steel plate 1 of 30mm:
1) sees Fig. 2, earlier the two pairs of parallels 3 below the steel plate and arc pad 2 are placed 1/4 and 3/4 place of steel plate 1 width respectively, again parallels 3 and arc pad 2 formation pressure spots are placed by width 1/2 place above the steel plate 1, pressure head presses down pressing steel plate 1 pressure spot position, and length direction is aligned one time every 600-800mm.
2) see Fig. 3, the edge that parallels 3 below the steel plate 1 and arc pad 2 are placed steel plate 1 width, top parallels 3, arc pad 2 place steel plate 1 width 1/4 and 3/4 place successively, utilize pressure head to press 2 points one by one, and length direction is aligned one time every 600-800mm;
Thickness is greater than the aligning step of 30mm steel plate 1, as shown in Figure 4:
With the edge that the parallels 3 below the steel plate 1 and arc pad 2 place steel plate 1 width, top parallels 3, arc pad 2 place steel plate 1 width 1/2,1/4 and 3/4 place successively.Utilize pressure head to press 3 points one by one, length direction is aligned one time every 600-800mm.
Embodiment two
The bent method for aligning of length direction wooden dipper:
As shown in Figure 5, a parallels 3, arc pad 2 are placed the head of steel plate 1 length direction, another piece parallels 3, arc pad 2 move a certain distance along its length, the peak of pressure head pressing steel plate 1 between two arc pads 2, along steel plate 1 length direction parallels 3 and the arc pad 2 below the moving steel plate 1 gradually, after each the moving, by parallels 3 and arc pad 2 pressing steel plates 1 peak, finish until aligning with pressure head.
Lower gasket thickness 10mm, pads placement is seen parameter list (aligning from east to west)
Steel plate thickness Lower gasket position, east L1 (apart from the projection of pressure head vertical direction) Western lower gasket position L2 (apart from the projection of pressure head vertical direction)
??20 ??300 ??100
??>20-30 ??350 ??150
??>30-40 ??400 ??200
??>40-50 ??450 ??500
Steel plate thickness Lower gasket position, east L1 (apart from the projection of pressure head vertical direction) Western lower gasket position L2 (apart from the projection of pressure head vertical direction)
??>60-80 ??500 ??550
Embodiment three
Bridge shape steel plate method for aligning:
1, as shown in Figure 6, earlier a plain plate 1 is placed on kiloton pressure and rectifys on the roller-way, then bridge shape steel plate 1 head is ridden over 1 meter of plain plate afterbody, plain plate moves forward on roller-way, thereby brings bridge shape steel plate 1 into the aligning platform.
2, enter the highest point of the steel plate 1 of aligning platform with the pressure head extruding,, align until steel plate head every 200mm to the steel plate head direction earlier, again from starting point, align every 200mm, until the plate tail to the steel plate caudal directions again as starting point.

Claims (4)

1. the method for a straightening steel plate is characterized in that, adopts very heavy pressure to rectify and for pressure source steel plate is pushed aligning, and the concrete steps of this method are:
1) before the aligning, according to steel plate deformed state and deformation extent, two blocks of parallels and arc pad are placed in the appropriate location on the aligning platform, by roller-way steel plate are placed on the aligning platform;
2) select the steel plate position of pressurized at first according to the practical distortion of steel plate, put an arc pad in this position of steel plate upper surface, place parallels in the depression of arc pad upper end;
3) start very heavy pressure and rectify, pressure head presses down the extruding parallels, thereby pressure is delivered to arc pad pressing steel plate deformation place;
4) constantly adjust pad pressure spot position, parallels on the steel plate and arc pad adjust accordingly, and pressure head presses down each pressure spot position, meets the requirements up to steel plate.
2. the method for a kind of straightening steel plate according to claim 1 is characterized in that, laterally the bent method for aligning of wooden dipper:
For the steel plate of thickness smaller or equal to 30mm, the aligning step is as follows:
1) earlier the two pairs of parallels below the steel plate and arc pad are placed 1/4 and 3/4 place of steel plate width direction respectively, again parallels and arc pad formation pressure spot are placed by 1/2 place of width above the steel plate, pressure head presses down pressing steel plate pressure spot position, and length direction is aligned one time every 600-800mm.
2) edge that the parallels below the steel plate and arc pad are placed steel plate width, top parallels, arc pad place steel plate width direction 1/4 and 3/4 place successively, utilize pressure head to press 2 points one by one, and length direction is aligned one time every 600-800mm;
Thickness is as follows greater than the aligning step of 30mm steel plate:
With the edge that the parallels below the steel plate and arc pad place steel plate width, top parallels, arc pad place steel plate width direction 1/2,1/4 and 3/4 place successively.Utilize pressure head to press 3 points one by one, length direction is aligned one time every 600-800mm.
3. the method for a kind of straightening steel plate according to claim 1 is characterized in that, the bent method for aligning of length direction wooden dipper:
A parallels, arc pad are placed the head of steel plate length direction, another piece parallels, arc pad move a certain distance along its length, the peak of pressure head pressing steel plate between two arc pads, along steel plate length direction parallels and the arc pad below the moving steel plate gradually, after each the moving,, finish by parallels and arc pad pressing steel plate peak with pressure head until aligning.
4. the method for a kind of straightening steel plate according to claim 1 is characterized in that, bridge shape steel plate method for aligning:
1) earlier a plain plate is placed on kiloton pressure and rectifys on the roller-way, then bridge shape steel plate head is ridden over plain plate afterbody rice, plain plate moves forward on roller-way, thereby brings bridge shape steel plate into the aligning platform.
2) push the highest point that enters the steel plate of aligning platform with pressure head,, align until steel plate head every 200mm to the steel plate head direction earlier, again from starting point, align every 200mm, until the plate tail to the steel plate caudal directions again as starting point.
CN200810228828A 2008-11-17 2008-11-17 Method for straightening steel plate CN101733305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200810228828A CN101733305A (en) 2008-11-17 2008-11-17 Method for straightening steel plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200810228828A CN101733305A (en) 2008-11-17 2008-11-17 Method for straightening steel plate

Publications (1)

Publication Number Publication Date
CN101733305A true CN101733305A (en) 2010-06-16

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102139296A (en) * 2010-12-21 2011-08-03 南阳汉冶特钢有限公司 Method for straightening buckled pipeline steel plate with thickness less than 20mm at normal temperature
CN102500657A (en) * 2011-11-02 2012-06-20 宜昌江峡船用机械有限责任公司 Method for correcting welding deformation of large plate-type structural piece
CN102974660A (en) * 2012-12-05 2013-03-20 南京钢铁股份有限公司 Thick steel plate planishing technology
CN104801574A (en) * 2015-05-15 2015-07-29 中天钢铁集团有限公司 Device for straightening curved continuous casting billets
CN105382484A (en) * 2015-10-20 2016-03-09 潘晟 Drawing and brightening process of steel belt with coating
CN105443756A (en) * 2015-12-31 2016-03-30 锦西化工研究院有限公司 Sealing gasket strip for preparing large and ultrathick organic glass and surface protection method
CN107716614A (en) * 2017-08-24 2018-02-23 武船重型工程股份有限公司 A kind of mechanical antidote of U rib plate unit
CN110773593A (en) * 2019-09-20 2020-02-11 南京钢铁股份有限公司 Composite board shape correcting method
CN111703551A (en) * 2020-05-07 2020-09-25 沪东中华造船(集团)有限公司 Top flattening device for military supplies dog-ear indent planking on ship

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102139296A (en) * 2010-12-21 2011-08-03 南阳汉冶特钢有限公司 Method for straightening buckled pipeline steel plate with thickness less than 20mm at normal temperature
CN102139296B (en) * 2010-12-21 2012-09-05 南阳汉冶特钢有限公司 Method for straightening buckled pipeline steel plate with thickness less than 20mm at normal temperature
CN102500657A (en) * 2011-11-02 2012-06-20 宜昌江峡船用机械有限责任公司 Method for correcting welding deformation of large plate-type structural piece
CN102500657B (en) * 2011-11-02 2014-01-29 宜昌江峡船用机械有限责任公司 Method for correcting welding deformation of large plate-type structural piece
CN102974660A (en) * 2012-12-05 2013-03-20 南京钢铁股份有限公司 Thick steel plate planishing technology
CN104801574A (en) * 2015-05-15 2015-07-29 中天钢铁集团有限公司 Device for straightening curved continuous casting billets
CN105382484B (en) * 2015-10-20 2017-06-23 广东库博精密科技有限公司 A kind of drawing light technique with coated steel strips
CN105382484A (en) * 2015-10-20 2016-03-09 潘晟 Drawing and brightening process of steel belt with coating
CN105443756A (en) * 2015-12-31 2016-03-30 锦西化工研究院有限公司 Sealing gasket strip for preparing large and ultrathick organic glass and surface protection method
CN105443756B (en) * 2015-12-31 2018-07-31 锦西化工研究院有限公司 Prepare large scale special thick organic glass sealing filler strip and method for protecting surface
CN107716614A (en) * 2017-08-24 2018-02-23 武船重型工程股份有限公司 A kind of mechanical antidote of U rib plate unit
CN110773593A (en) * 2019-09-20 2020-02-11 南京钢铁股份有限公司 Composite board shape correcting method
CN111703551A (en) * 2020-05-07 2020-09-25 沪东中华造船(集团)有限公司 Top flattening device for military supplies dog-ear indent planking on ship

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Application publication date: 20100616

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