CN103866109B - Non-oriented electrical steel strip annealing furnace - Google Patents
Non-oriented electrical steel strip annealing furnace Download PDFInfo
- Publication number
- CN103866109B CN103866109B CN201410088081.5A CN201410088081A CN103866109B CN 103866109 B CN103866109 B CN 103866109B CN 201410088081 A CN201410088081 A CN 201410088081A CN 103866109 B CN103866109 B CN 103866109B
- Authority
- CN
- China
- Prior art keywords
- straightening roll
- correction
- correction straightening
- support
- hydro
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
Landscapes
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a kind of non-oriented electrical steel strip annealing furnace, comprise furnace shell to surround, the heating zone of arranging from front to back, soaking zone and cooling section, in the front end of soaking zone, tension deviation rectification device is housed, tension deviation rectification device comprises symmetry and is arranged on two the first supports outside soaking zone stove, the the first/the second/three tensioning roller being positioned at stove is housed between two the first supports, first roller and the first hydro-cylinder are installed in the below of each the first support, tension force correction straightening device is housed in the rear end of soaking zone, tension force correction straightening device comprises symmetry and is arranged on two the second supports outside soaking zone stove, the the the first/the second/three/four/five correction straightening roll being positioned at stove is housed between two the second supports, second roller and the second hydro-cylinder are installed in the below of each the second support.Adopt said structure, steel band rectified a deviation and aligns, significantly improving the magnetic property of product, have be skillfully constructed, structure is simple, transformation easily and the feature such as improvement cost is low.
Description
Technical field
The invention belongs to annealing furnace technical field, specifically, particularly a kind of non-oriented electrical steel strip annealing furnace.
Background technology
At present, non-oriented electrical steel strip (hereinafter referred to as steel band) adopts Horizental annealer to anneal, and the technological process of steel band in stove is comparatively complicated, so usually adopt a kind of type of furnace the longest in annealing furnace, about 260-300m.Existing non-oriented electrical steel annealing furnace comprises heating zone, soaking zone and cooling section from front to back, and wherein the length of soaking zone is about 180-220m.Because the tension force of steel belt in annealing furnace ensures that steel band normally runs and the prerequisite of various operational trouble appears in unlikely wandering off, along with the increase tension force of furnace length must increase.So non-oriented electrical steel annealing furnace must could steady running under larger tension force, generally needs more than 5000N at present.But research finds that the magnetic property impact of tension force on steel band after annealing is very large, and along with the increase of tension force, iron loss significantly increases, and magnetic strength significantly reduces.Thus, higher tension force constrains the raising of steel band magnetic property.
On the other hand, steel band in stove after heat, the plate shape of steel band can be affected, produce limit wave phenomenon.And steel band can not adopt stretch-bend leveller at normal temperatures, because stretch-bend leveller can increase the stress of steel band inside, and cause magnetic property to decline, the energy saving of motor is produced in impact.Thus, the plate shape of existing non-oriented electrical steel strip is poor, and pile pieces coefficient is not high, has influence on the magnetic property of steel band, has influence on the energy saving of the motor produced further.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of non-oriented electrical steel strip annealing furnace being conducive to improving magnetic property.
Technical scheme of the present invention is as follows: a kind of non-oriented electrical steel strip annealing furnace, comprise and being surrounded by furnace shell (15), the heating zone (1) of arranging from front to back, soaking zone (2) and cooling section (3), in the front end of described soaking zone (2), tension deviation rectification device is installed, this tension deviation rectification device comprises symmetry and is arranged on two bar shaped first supports (12) outside soaking zone (2) stove, be provided with successively before and after between two the first supports (12) and be all positioned at soaking zone (2) stove, and measure-alike the first tensioning roller (4), second tensioning roller (5) and the 3rd tensioning roller (6), wherein the medullary ray of the first tensioning roller (4) and the 3rd tensioning roller (6) is lower than the second tensioning roller (5) medullary ray, the medullary ray of described second tensioning roller (5) and the difference of altitude between the first tensioning roller (4) and the 3rd tensioning roller (6) medullary ray are less than the diameter of the first/bis-/tri-tensioning rollers (4/5/6), be greater than the radius of the first/bis-/tri-tensioning rollers (4/5/6), described in each, the below of the first support (12) is provided with the first roller (14) and the first hydro-cylinder (13), the medullary ray of described first hydro-cylinder (13) is arranged along the longitudinal direction, when the piston rod of the first hydro-cylinder (13) stretches, corresponding the first support (12) moves forward and backward, when the direction that two the first supports (12) are movable is contrary, described first tensioning roller (4), the medullary ray of the second tensioning roller (5) and the 3rd tensioning roller (6) deflects, tension force correction straightening device is installed in the rear end of described soaking zone (2), this tension force correction straightening device comprises symmetry and is arranged on two bar shaped second supports (17) outside soaking zone (2) stove, be provided with successively before and after between two the second supports (17) and be all positioned at soaking zone (2) stove, and the first measure-alike correction straightening roll (7), second correction straightening roll (8), 3rd correction straightening roll (9), 4th correction straightening roll (10) and the 5th correction straightening roll (11), wherein the first correction straightening roll (7), the medullary ray of the 3rd correction straightening roll (9) and the 5th correction straightening roll (11) is lower than the medullary ray of the second correction straightening roll (8) and the 4th correction straightening roll (10), described second correction straightening roll (8) and the 4th medullary ray and first of rectifying a deviation straightening roll (10) are rectified a deviation straightening roll (7), difference of altitude between 3rd correction straightening roll (9) and the 5th correction straightening roll (11) medullary ray is less than the diameter of the first/bis-/tri-/tetra-/five corrections straightening roll (7/8/9/10/11), be greater than the radius of the first/bis-/tri-/tetra-/five corrections straightening roll (7/8/9/10/11), described in each, the below of the second support (17) is provided with the second roller (19) and the second hydro-cylinder (18), the medullary ray of described second hydro-cylinder (18) is arranged along the longitudinal direction, when the piston rod of the second hydro-cylinder (18) stretches, corresponding the second support (17) moves forward and backward, when the direction that two the second supports (17) are movable is contrary, described first correction straightening roll (7), second correction straightening roll (8), 3rd correction straightening roll (9), the medullary ray of the 4th correction straightening roll (10) and the 5th correction straightening roll (11) deflects.
Adopt said structure, the tension deviation rectification device be made up of three tensioning rollers is set in the front end of soaking zone, the tension force correction straightening device be made up of five correction straightening rolls is set in the rear end of soaking zone, and the hydro-cylinder that roller and piston rod seesaw all is installed below the first/the second support of installation tension roller and correction straightening roll, the first/the second support all can be moved forward and backward, like this, when the direction that symmetrically arranged two the first supports are movable is contrary, the medullary ray of three tensioning rollers deflects; The in like manner medullary ray deflection of five correction straightening rolls, along with tensioning roller and the deflection of correction straightening roll, the steel band wandered off is set right, and steel band is advanced along predetermined direction, thus avoids the problem improving tension force because preventing steel band from wandering off and cause steel band magnetic property to reduce.
And, the medullary ray of the second tensioning roller and the difference of altitude between the first tensioning roller and the 3rd tensioning roller medullary ray are less than the diameter of the first/bis-/tri-tensioning rollers, the medullary ray and first of the second correction straightening roll and the 4th correction straightening roll rectify a deviation straightening roll and the 5th difference of altitude of rectifying a deviation between straightening roll medullary ray of straightening roll, the 3rd of rectify a deviation is less than the first/bis-/tri-/tetra-/five diameters of rectifying a deviation straightening roll, and steel band is rectified a deviation at the first/bis-/tri-tensioning rollers and the first/bis-/tri-/tetra-/five the surface formation cornerite of straightening rolls.When the first/bis-/tri-tensioning roller active rotation, the frictional force between the surface of the first/bis-/tri-tensioning rollers and steel band drives steel band below to strain, thus adds the tension force of following steel; Otherwise, when the frictional force on steel band and the first/bis-/tri-tensioning roller surfaces pulls the first/bis-/tri-tensioning roller passive transports, with regard to making steel band below fluff, also just decrease the tension force of following steel.Thus tension deviation rectification device not only can be rectified a deviation but also can adjustment of tonicity.Equally, tension force correction straightening device has also possessed the function of tension adjustment.Be arranged on soaking zone front-end and back-end like this and possess the tension deviation rectification device of tension regulating function and tension force correction straightening device makes the heating zone of annealing furnace, soaking zone and cooling section can adopt different tension parameterses.In actually operating, be convenient to the tension force suitably increasing heating zone and cooling section, reduce the tension force of soaking zone, steel band can be run with ultra-low tension in annealing furnace soaking zone, be conducive to the magnetic improving steel band further.
Moreover steel band produces flexural deformation when passing through five correction straightening rolls, and the direction of distortion constantly changes, in this just curved, recurvation process repeatedly, shape wave steel band originally becomes straight, thus aligns steel band, further increases the magnetic property of product.Like this tension deviation rectification device and tension force correction straightening device acting in conjunction under, the magnetic property of product is significantly improved.
First hydro-cylinder (13) of two described first support (12) belows is oppositely installed, and second hydro-cylinder (18) of two described second support (17) belows is oppositely installed.Such installation first hydro-cylinder and the second hydro-cylinder, when needing symmetrically arranged the first/the second support is oppositely moved along the longitudinal direction, the piston rod of two the first/the second hydro-cylinders of reverse setting stretches out, retraction movement is the same, thus make these two the first/the second hydro-cylinders can share same Controlling System, more cost-saving.
Described second correction straightening roll (8) and the 4th correction straightening roll (10) are arranged on the second support (17) by the 3rd support (20) and the 3rd hydro-cylinder (21), wherein the 3rd support (20) is positioned at the second support (17) top, and the 3rd support (20) is connected by the 3rd vertical hydro-cylinder (21) with between the second support (17), when the piston rod of the 3rd hydro-cylinder (21) stretches, described 3rd support (20) moves up and down, described second correction straightening roll (8) and the 4th correction straightening roll (10) are arranged between two the 3rd supports (20).Such installation second rectify a deviation straightening roll and the 4th correction straightening roll, make the second correction straightening roll and the 4th correction straightening roll can move up and down, be convenient to threading.
The diameter of described the first/bis-/tri-/tetra-/five corrections straightening roll (7/8/9/10/11) is 200-800mm, and the diameter of described the first/bis-/tri-/tetra-/five corrections straightening roll (7/8/9/10/11) is 30-100mm.
Beneficial effect: the present invention is by arranging the tension deviation rectification device be made up of three tensioning rollers in the front end of soaking zone, the tension force correction straightening device be made up of five correction straightening rolls is set in the rear end of soaking zone, thus steel band is rectified a deviation and aligns, considerably improve the magnetic property of product, have be skillfully constructed, structure is simple, transformation easily and the feature such as improvement cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of tension deviation rectification device.
Fig. 3 is the A-A sectional view of Fig. 2.
Fig. 4 is the structural representation of tension force correction straightening device.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the present invention includes heating zone 1, soaking zone 2, cooling section 3, first tensioning roller 4, second tensioning roller 5, the 3rd tensioning roller 6, first correction straightening roll 7, second correction straightening roll 8, the 3rd correction straightening roll 9, the 4th correction straightening roll 10, the 5th correction straightening roll 11, first support 12, first hydro-cylinder 13, first roller 14, furnace shell 15, steel band 16, second support 17, second hydro-cylinder 18, second roller 19, the 3rd support 20 and the 3rd hydro-cylinder 21.Wherein, described heating zone 1, soaking zone 2 and cooling section 3 surround by furnace shell 15, and arrange from front to back; All be equipped with furnace bottom roll at heating zone 1, soaking zone 2 and cooling section 3, this is same as the prior art, does not repeat at this.Be provided with tension deviation rectification device in the front end of described soaking zone 2, this tension deviation rectification device comprises symmetry and is arranged on outside soaking zone 2 stove two bar shaped first supports 12 along the longitudinal direction.Before and after between two the first supports 12, the first tensioning roller 4, second tensioning roller 5 and the 3rd tensioning roller 6 that are all positioned at soaking zone 2 stove are installed successively.This first tensioning roller 4, second tensioning roller 5 and the 3rd tensioning roller 6 measure-alike.The diameter of described the first/bis-/tri-/tetra-/five correction straightening rolls 7/8/9/10/11 is 200-800mm, and the present embodiment preferably this diameter is 500mm.The medullary ray of described the first/the second/three tensioning roller 4/5/6 and the central axis of soaking zone 2 fore-and-aft direction.Further, wherein the medullary ray of the first tensioning roller 4 and the 3rd tensioning roller 6 is positioned at sustained height, and the medullary ray of the first tensioning roller 4 and the 3rd tensioning roller 6 is lower than the second tensioning roller 5 medullary ray.The medullary ray of described second tensioning roller 5 and the difference of altitude between the first tensioning roller 4 and the 3rd tensioning roller 6 medullary ray are less than the diameter of the first/bis-/tri-tensioning rollers 4/5/6, are greater than the radius of the first/bis-/tri-tensioning rollers 4/5/6, make steel band 16 form cornerite on the surface of the first/bis-/tri-tensioning rollers 4/5/6.
As shown in Figures 2 and 3, described in each, the below of the first support 12 is provided with four the first rollers 14 and first hydro-cylinder 13, and wherein the medullary ray of the first hydro-cylinder 13 is arranged along the longitudinal direction.Further, the first hydro-cylinder 13 below two described first supports 12 is oppositely installed.When the piston rod of the first hydro-cylinder 13 stretches, the first corresponding support 12 moves forward and backward.When the piston rod synchronization telescope of two the first hydro-cylinders 13, when the direction that two the first supports 12 are moved forward and backward is contrary, the medullary ray of described first tensioning roller 4, second tensioning roller 5 and the 3rd tensioning roller 6 deflects.
As shown in Figure 1 and Figure 4, be provided with tension force correction straightening device in the rear end of described soaking zone 2, this tension force correction straightening device comprises symmetry and is arranged on outside soaking zone 2 stove two bar shaped second supports 17 along the longitudinal direction.The first correction straightening roll 7, the second correction straightening roll 8, the 3rd correction straightening roll 9, the 4th correction straightening roll 10 and the 5th correction straightening roll 11 that are all positioned at soaking zone 2 stove are installed before and after between two the second supports 17 successively.The size of described first correction straightening roll 7, second correction straightening roll 8, the 3rd correction straightening roll 9, the 4th correction straightening roll 10 and the 5th correction straightening roll 11 is also identical, further, the diameter of the the the first/the second/three/four/five correction straightening roll 7/8/9/10/11 is less than the diameter of the first/bis-/tri-tensioning rollers 4/5/6.The diameter of described the first/bis-/tri-/tetra-/five correction straightening rolls 7/8/9/10/11 is 30-100mm, and the present embodiment preferably this diameter is 65mm.Described the first/the second/three/four/five correction medullary ray of straightening roll 7/8/9/10/11 and the central axis of soaking zone 2 fore-and-aft direction.Wherein, the medullary ray of the first correction straightening roll 7, the 3rd correction straightening roll 9 and the 5th correction straightening roll 11 is positioned at same level height, and the medullary ray of the second correction straightening roll 8 and the 4th correction straightening roll 10 is positioned at same level height.The medullary ray of the first correction straightening roll 7, the 3rd correction straightening roll 9 and the 5th correction straightening roll 11 is lower than the medullary ray of the second correction straightening roll 8 and the 4th correction straightening roll 10.The medullary ray and first of described second correction straightening roll 8 and the 4th correction straightening roll 10 rectify a deviation straightening roll 7, the 3rd rectify a deviation straightening roll 9 and the 5th difference of altitude of rectifying a deviation between straightening roll 11 medullary ray be less than the first/bis-/tri-/tetra-/five rectify a deviation straightening roll 7/8/9/10/11 diameter, be greater than the first/bis-/tri-/tetra-/five radiuses of rectifying a deviation straightening roll 7/8/9/10/11, make steel band 16 also form cornerite on the surface that the first/bis-/tri-/tetra-/five rectify a deviation straightening rolls 7/8/9/10/11.
As shown in Figure 1 and Figure 4, described in each, the below of the second support 17 is provided with the second roller 19 and the second hydro-cylinder 18, and the medullary ray of described second hydro-cylinder 18 is arranged along the longitudinal direction.Further, the second hydro-cylinder 18 below two described second supports 17 is oppositely installed.When the piston rod of the second hydro-cylinder 18 stretches, the second corresponding support 17 moves forward and backward.When the piston rod synchronization telescope of two the second hydro-cylinders 18, when the direction that two the second supports 17 are moved forward and backward is contrary, the medullary rays of described the first/bis-/tri-/tetra-/five correction straightening rolls 7/8/9/10/11 deflect.
As shown in Figure 4, described second correction straightening roll 8 and the 4th correction straightening roll 10 are arranged on the second support 17 by the 3rd support 20 and the 3rd hydro-cylinder 21.Wherein, the 3rd support 20 is elongated, the top that is positioned at the second support 17, and is connected by the 3rd vertical hydro-cylinder 21 between the 3rd support 20 with the second support 17.When the piston rod of the 3rd hydro-cylinder 21 stretches, described 3rd support 20 moves up and down.Described second correction straightening roll 8 and the 4th correction straightening roll 10 are arranged between two the 3rd supports 20.All be connected by the output shaft of respective shaft coupling with respective frequency control motor outside first tensioning roller 4, second tensioning roller 5, the 3rd tensioning roller 6, first correction straightening roll 7, second correction straightening roll 8, the 3rd correction straightening roll 9, the 4th correction straightening roll 10, the 5th correction straightening roll 11 described in each.When frequency control motor drives the first/bis-/tri-tensioning roller 4/5/6 active rotation, frictional force between the surface of the first/bis-/tri-tensioning rollers 4/5/6 and steel band 16 drives steel band 16 below to strain, thus add the tension force of following steel 16, increase tension force size depend on the forward current of frequency control motor; Otherwise, when the frictional force on steel band 16 and the first/bis-/tri-tensioning roller 4/5/6 surfaces pulls the first/bis-/tri-tensioning roller 4/5/6 passive transports, just make steel band 16 below fluff, namely reduce the tension force of following steel, reduce tension force size depend on the reversible circulation of frequency control motor.Adopt this annealing furnace, can when stove internal tension is low reach 1250N, steel band is still run along normal track, and the non-oriented electrical steel strip iron loss P1.5/50 produced have decreased to≤4.0W/kg, magnetic strength B50 by≤6.0W/kg and rises to >=1.70T by >=1.68T.
Claims (3)
1. a non-oriented electrical steel strip annealing furnace, comprise and being surrounded by furnace shell (15), the heating zone (1) of arranging from front to back, soaking zone (2) and cooling section (3), it is characterized in that: in the front end of described soaking zone (2), tension deviation rectification device is installed, this tension deviation rectification device comprises symmetry and is arranged on two bar shaped first supports (12) outside soaking zone (2) stove, be provided with successively before and after between two the first supports (12) and be all positioned at soaking zone (2) stove, and measure-alike the first tensioning roller (4), second tensioning roller (5) and the 3rd tensioning roller (6), wherein the medullary ray of the first tensioning roller (4) and the 3rd tensioning roller (6) is lower than the second tensioning roller (5) medullary ray, the medullary ray of described second tensioning roller (5) and the difference of altitude between the first tensioning roller (4) and the 3rd tensioning roller (6) medullary ray are less than the diameter of the first/bis-/tri-tensioning rollers (4/5/6), be greater than the radius of the first/bis-/tri-tensioning rollers (4/5/6), described in each, the below of the first support (12) is provided with the first roller (14) and the first hydro-cylinder (13), the medullary ray of described first hydro-cylinder (13) is arranged along the longitudinal direction, when the piston rod of the first hydro-cylinder (13) stretches, corresponding the first support (12) moves forward and backward, when the direction that two the first supports (12) are movable is contrary, described first tensioning roller (4), the medullary ray of the second tensioning roller (5) and the 3rd tensioning roller (6) deflects, tension force correction straightening device is installed in the rear end of described soaking zone (2), this tension force correction straightening device comprises symmetry and is arranged on two bar shaped second supports (17) outside soaking zone (2) stove, be provided with successively before and after between two the second supports (17) and be all positioned at soaking zone (2) stove, and the first measure-alike correction straightening roll (7), second correction straightening roll (8), 3rd correction straightening roll (9), 4th correction straightening roll (10) and the 5th correction straightening roll (11), wherein the first correction straightening roll (7), the medullary ray of the 3rd correction straightening roll (9) and the 5th correction straightening roll (11) is lower than the medullary ray of the second correction straightening roll (8) and the 4th correction straightening roll (10), described second correction straightening roll (8) and the 4th medullary ray and first of rectifying a deviation straightening roll (10) are rectified a deviation straightening roll (7), difference of altitude between 3rd correction straightening roll (9) and the 5th correction straightening roll (11) medullary ray is less than the diameter of the first/bis-/tri-/tetra-/five corrections straightening roll (7/8/9/10/11), be greater than the radius of the first/bis-/tri-/tetra-/five corrections straightening roll (7/8/9/10/11), described in each, the below of the second support (17) is provided with the second roller (19) and the second hydro-cylinder (18), the medullary ray of described second hydro-cylinder (18) is arranged along the longitudinal direction, when the piston rod of the second hydro-cylinder (18) stretches, corresponding the second support (17) moves forward and backward, when the direction that two the second supports (17) are movable is contrary, described first correction straightening roll (7), second correction straightening roll (8), 3rd correction straightening roll (9), the medullary ray of the 4th correction straightening roll (10) and the 5th correction straightening roll (11) deflects.
2. non-oriented electrical steel strip annealing furnace according to claim 1, it is characterized in that: first hydro-cylinder (13) of two described first support (12) belows is oppositely installed, second hydro-cylinder (18) of two described second support (17) belows is oppositely installed.
3. non-oriented electrical steel strip annealing furnace according to claim 1 and 2, it is characterized in that: described second correction straightening roll (8) and the 4th correction straightening roll (10) are arranged on the second support (17) by the 3rd support (20) and the 3rd hydro-cylinder (21), wherein the 3rd support (20) is positioned at the second support (17) top, and the 3rd support (20) is connected by the 3rd vertical hydro-cylinder (21) with between the second support (17), when the piston rod of the 3rd hydro-cylinder (21) stretches, described 3rd support (20) moves up and down, described second correction straightening roll (8) and the 4th correction straightening roll (10) are arranged between two the 3rd supports (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088081.5A CN103866109B (en) | 2014-03-11 | 2014-03-11 | Non-oriented electrical steel strip annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410088081.5A CN103866109B (en) | 2014-03-11 | 2014-03-11 | Non-oriented electrical steel strip annealing furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103866109A CN103866109A (en) | 2014-06-18 |
| CN103866109B true CN103866109B (en) | 2016-01-20 |
Family
ID=50905106
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410088081.5A Active CN103866109B (en) | 2014-03-11 | 2014-03-11 | Non-oriented electrical steel strip annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103866109B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263896A (en) * | 2014-09-24 | 2015-01-07 | 北京冶科磁性材料有限公司 | Continuous tension annealing device for soft magnetic materials |
| CN104831039B (en) * | 2015-05-25 | 2017-11-03 | 马钢(集团)控股有限公司 | A kind of electrical sheet annealing heating method |
| CN106702301A (en) * | 2015-08-18 | 2017-05-24 | 天津市宇润德金属制品有限公司 | Galvanizing tool for strip steel |
| CN114769366B (en) * | 2022-05-12 | 2024-02-20 | 武汉钢铁有限公司 | Straightening system for improving shape of oriented steel finished product and control method thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0936275B1 (en) * | 1994-03-02 | 2002-07-31 | Nippon Steel Corporation | Tension control system for continuous annealing apparatus of steel strip |
| CN101091966B (en) * | 2006-06-19 | 2010-05-12 | 鞍钢股份有限公司 | Double deviation-correcting control system for strip steel at inlet of rolling mill of continuous rolling mill set |
| CN101327877A (en) * | 2008-07-08 | 2008-12-24 | 无锡三洲冷轧硅钢有限公司 | Band steel running deviation control device |
| CN201793669U (en) * | 2010-09-26 | 2011-04-13 | 鞍钢股份有限公司 | Strip steel deviation correcting device of continuous annealing furnace |
-
2014
- 2014-03-11 CN CN201410088081.5A patent/CN103866109B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN103866109A (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103866109B (en) | Non-oriented electrical steel strip annealing furnace | |
| CN102259112A (en) | Method for controlling structural homogeneity of high-carbon steel coil rod for deep drawing of steel wire | |
| CN102513399B (en) | Method for processing special wires for linear bearings | |
| CN100408209C (en) | Small-norm steel rod continuous rolling method and its guide and guards | |
| CN103008361B (en) | Method for controlling bending of steel plate head | |
| CN103230943B (en) | Improve the method for Warping Phenomenon in Plate Rolling Process | |
| CN102500661A (en) | Straightening device for large-diameter material of cold header and straightening method | |
| CN107413895B (en) | Angle steel straightening device and process method | |
| CN103056160A (en) | X-I short-process rolling unit for H-shaped steel | |
| CN201214111Y (en) | Steering roll with upper and lower uncoiling | |
| CN203448413U (en) | Anti-deviation roller bed for high-speed wire rod control cooling production line | |
| CN103286147B (en) | Hot-rolled board strip production line laminar cooling method | |
| CN201493419U (en) | Semi-rigid extension device of transposed wire | |
| CN202367006U (en) | Section steel rolling and straightening machine | |
| CN202692679U (en) | Roll shaft directional transmission mechanism for tunnel kiln | |
| CN110803863B (en) | Air grid set supporting device and air grid set arcing control method | |
| CN203170770U (en) | Bar material straightening roller and straightening machine | |
| CN102133609A (en) | Lower driving mixed pressing wheel type reinforcing bar straightening machine with extending function | |
| CN102719641A (en) | Method for reducing symmetrical open-grained structures of edges of low-carbon cold heading steel wire rods | |
| CN203546102U (en) | Bearing quenching deformation control mechanism | |
| CN201940510U (en) | Lower active staggering pressure wheel type steel bar straightening machine with extending function | |
| CN102078909A (en) | Staggered pinch-roller type reinforcing steel bar aligning machine with extension function | |
| CN221396548U (en) | Multi-roller traction mechanism for packing belt production | |
| CN201516447U (en) | Cooling device for reducing temperature of lapping points of hard lines | |
| CN108284175A (en) | A kind of sping mattress processing wind spring equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |