CN104475460B - A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing - Google Patents
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing Download PDFInfo
- Publication number
- CN104475460B CN104475460B CN201410644651.4A CN201410644651A CN104475460B CN 104475460 B CN104475460 B CN 104475460B CN 201410644651 A CN201410644651 A CN 201410644651A CN 104475460 B CN104475460 B CN 104475460B
- Authority
- CN
- China
- Prior art keywords
- nozzle
- cold rolling
- normalizing
- cooling
- silicon steel
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/74—Temperature control, e.g. by cooling or heating the rolls or the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/48—Tension control; Compression control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B45/02—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0218—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for strips, sheets, or plates
Abstract
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing：Directional silicon steel after to normalizing is cooled down using the crossed longitudinally mode of nozzle, does not set nozzle spray cooling in the width of two back gauge edge 30mm of steel band；Preheated after conventional pickling and be incubated；Cold rolling；Routine carries out rear operation.The present invention solve inhomogeneous cooling after high magnetic induction grain-oriented silicon steel normalizing even, cold rolling when easily in the breach that edge appearance >=5mm is deep; and in the presence of forward pull; crackle can laterally be extended generation brittle failure along steel band; the problem of stable rolling cannot be carried out, it is achieved that boundless in cold rolling after emergency cooling process after normalizing split, brittle failure phenomenon produce.
Description
Technical field
The present invention relates to the control method in a kind of orientation silicon steel production, specifically belongs to a kind of high magentic induction oriented silicon of control
The method that cold rolling side is split after steel normalizing.
Background technology
, after 1120 DEG C of normalizing, product magnetic is high for high magnetic induction grain-oriented silicon steel hot rolled strip；But after 1120 DEG C of high temperature normalizing, analysis
Go out phase particle to grow up, volume fraction will reduce, precipitated phase particle cannot pinning crystal grain, crystal grain will grow up therewith, and strip steel plasticity is fast
Speed declines, and when cold rolling under room temperature, elongation percentage only has 10%, side easily occurs when cold rolling and splits and brittle fracture.
In order to obtain heterogeneous structure along thickness of slab direction, suitable AlN inhibitor pattern and size, often raising is often taken
Change temperature, while also improving cooldown rate；In quenching process, belt steel temperature drastically changes, and along with γ-α phase transformations and is mingled with
The precipitation of thing, strip steel material and resistance of deformation can also occur corresponding change.Particularly in quenching process, cooling water flow
Uneven cause to differ greatly with edge rate of cooling in the middle part of steel band, the horizontal inhomogeneous cooling of steel band is even, makes the horizontal planted agent of steel band
Power, intensity and hardness skewness, can form the hardness band that soft or hard is separated by when serious.This horizontal hardness skewness pole
Rolling fluctuation in cold-rolled process is easily caused, and increases the internal stress during rolling deformation, and then affect cold rolling finished product plate shape,
Can cause to roll unstability broken belt when serious.Additionally, inhomogeneous cooling is also easy to cause steel band edge really up to the mark, and in trimming, strip steel
There is burr and shear stress and concentrates in edge, and easy crack initiation extends when cold rolling, produce side split, brittle fracture the problems such as, sternly
Ghost image rings cold rolling stability and production efficiency.
Through retrieval, China Patent Publication No. is the document of 102294310 A of CN, it discloses《Integral type high temperature resistant aerosol
Shower》, which describe only the spray pipe structure design for realizing aerosol cooling, but not suggest that shower arrangement of nozzles mode
And impact of the nozzle flow distribution to cooling uniformity, and to cold rolling impact.
Content of the invention
The present invention is in view of the shortcomings of the prior art, there is provided inhomogeneous cooling after a kind of solution high magnetic induction grain-oriented silicon steel normalizing
Easily in the breach that edge appearance >=5mm is deep when even, cold rolling, and in the presence of forward pull, can laterally be extended along steel band
Generation brittle failure, it is impossible to carry out the problem of stable rolling, cold rolling after emergency cooling process after realizing normalizing in boundless split, the control of brittle failure high
The method that the cold rolling side of magnetic induction grain-oriented silicon steel is split.
Arrangement of nozzles of the present invention by improvement quench zone shower, that is, control the injection direction of cooling water, and away from steel
Water-spraying control is not carried out in the range of edges of boards portion 30mm, and controls the flow of nozzle simultaneously, it is ensured that laterally cooling is uniform for steel band, laterally
Hardness is uniform, and solves steel band edge shear stress collection neutralization burr problems of too.
Realize the measure of above-mentioned purpose：
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is entered using the crossed longitudinally mode of nozzle
OK；Nozzle spray cooling is not set in the width of two back gauge edge 30mm of steel band, and the cooling of remainder is according to each nozzle
Cooling water flow is carried out；The cooling water inflow of n-th nozzle is calculated according to below equation and is set：Ln=11.60 a*cn+b* cn 2
In formula：LnRepresent that the cooling water inflow of n-th nozzle, unit are：L/min；
cnFor distance of the nozzle away from steel band edge, unit is mm；
A is cnFirst order correction factor, its value be 0.05 ~ 0.06；
B is cn 2Quadratic term correction factor, its value be 0.0001 ~ 0.0002；
2）Preheated after conventional pickling and be incubated, preheating temperature control is not less than 60 DEG C, is protected under preheating temperature
Temperature, time are 60 ~ 240 minutes；
3）Carry out cold rolling, the respective reduction ratio of cold rolling 1st and the 2nd passage is controlled 30 ~ 42%；Its tension force is set for conventional
Definite value；When the edge in cold rolling front orientation silicon steel has micro-crack, then the tension force that started to walk is treated stable in 90 ~ 150Mpa
Afterwards, then its tension force is carried out according to conventional setting value；
4）Routine carries out rear operation.
The present invention compared with prior art, solve inhomogeneous cooling after high magnetic induction grain-oriented silicon steel normalizing even, cold rolling when easy
In the breach that edge appearance >=5mm is deep, and in the presence of forward pull, crackle can laterally be extended generation brittle failure along steel band,
The problem of stable rolling cannot be carried out, it is achieved that boundless in cold rolling after emergency cooling process after normalizing split, brittle failure phenomenon produce.
Description of the drawings
Fig. 1 is that schematic diagram arranged by cross arrangement formula shower of the present invention；
Fig. 2 is the hardness distribution of the laterally homogeneous cooling of steel band of the present invention.
Specific embodiment
Below the present invention is described in detail：
The cooling water inflow of following n-th nozzle of embodiment is calculated according to below equation and is set：
Ln=11.60 a*cn+b* cn 2
In formula：LnRepresent that the cooling water inflow of n-th nozzle, unit are：L/min；
cnFor distance of the nozzle away from steel band edge, unit is mm；
A is cnFirst order correction factor, its value be 0.05 ~ 0.06；
B is cn 2Quadratic term correction factor, its value be 0.0001 ~ 0.0002.
Embodiment 1
The steel band overall width of the present embodiment is 1080mm, and often row has 7 nozzle spray cooling waters, and symmetrically layout, above,
Under be respectively provided with 4 rows；The cooling water inflow for arranging corresponding nozzle up and down is identical；The nozzle of adjacent two rows correspondence position is crossed longitudinally side
Formula is arranged.
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is entered using the crossed longitudinally mode of nozzle
OK；Nozzle spray cooling is not set in the width of two back gauge edge 30mm of steel band, and in remaining 1020mm width range, 7 nozzles are equal
Even symmetric configuration；Spacing between each two nozzle is 125mm；Wherein, the 2nd, 4 layout of nozzle of 4 rows is in steel plate width
On heart line, which is away from steel plate edge apart from c4=510mm；Due to symmetric configuration centered on nozzle 4, thus nozzle 1 and nozzle 7 away from
The distance of steel plate edge is equal, i.e. c1= c7=135mm；Distance of the nozzle 2 with nozzle 6 away from steel plate edge is equal, i.e. c2=c6=
260mm；Distance of the nozzle 3 with nozzle 5 away from steel plate edge is equal, i.e. c3= c5=385mm；First order correction factor a takes 0.05,
Quadratic term correction factor b takes 0.0001；The cooling water inflow of each nozzle is calculated according to below equation and is set：
Ln=11.60 a*cn+b* cn 2
Above-mentioned known corresponding data is substituted into above formula to calculate, is drawn respectively：L1= L7=6.67 L/min, L2= L6=5.36
L/min, L3= L5=7.17 L/min；L4=12.11 L/min；
2）Preheated after conventional pickling and be incubated, preheating temperature is 62 DEG C, and is incubated under the preheating temperature, when
Between be
75 minutes；
3）Carrying out cold rolling, cold rolling the 1st time reduction ratio being controlled for 34%, the 2nd percentage pass reduction of control is 36%；Its tension force is
Conventional setting value；Carry out due to edge flawless therefore according to conventional setting value, without the need for reducing starting tension force；
4）Routine carries out rear operation.
After testing, cold rolling rear edge is produced without breach, brittle failure phenomenon, and plate shape is good.
Embodiment 2
The steel band overall width of the present embodiment is 1080mm, and often row has 7 nozzle spray cooling waters, and symmetrically layout, above,
Under be respectively provided with 4 rows；The cooling water inflow for arranging corresponding nozzle up and down is identical；The crossed longitudinally mode of the nozzle of adjacent two rows correspondence position
Arrangement.
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is entered using the crossed longitudinally mode of nozzle
OK；Nozzle spray cooling is not set in the width of two back gauge edge 30mm of steel band, and in remaining 1020mm width range, 7 nozzles are equal
Even symmetric configuration；Spacing between each two nozzle is 125mm；Wherein, the 2nd, 4 layout of nozzle of 4 rows is in steel plate width
On heart line, which is away from steel plate edge apart from c4=510mm；Due to symmetric configuration centered on nozzle 4, thus nozzle 1 and nozzle 7 away from
The distance of steel plate edge is equal, i.e. c1= c7=135mm；Distance of the nozzle 2 with nozzle 6 away from steel plate edge is equal, i.e. c2=c6=
260mm；Distance of the nozzle 3 with nozzle 5 away from steel plate edge is equal, i.e. c3= c5=385mm；First order correction factor a takes 0.055,
Quadratic term correction factor b takes 0.00015；The cooling water inflow of each nozzle is calculated according to below equation and is set：
Ln=11.60 a*cn+b* cn 2
Above-mentioned known corresponding data is substituted into above formula to calculate, is drawn respectively：L1= L7=6.9 L/min, L2= L6=7.44
L/min, L3= L5=12.66 L/min；L4=22.56 L/min；
2）Preheated after conventional pickling and be incubated, preheating temperature is 66 DEG C, and is incubated under the preheating temperature, when
Between be
150 minutes；
3）Carrying out cold rolling, cold rolling the 1st time reduction ratio being controlled for 36%, the 2nd percentage pass reduction of control is 35%；Its tension force is
Conventional setting value；As edge has slight crackle, starting tension force is 120Mpa；
4）Routine carries out rear operation.
After testing, the extension of edge flawless, brittle failure phenomenon are produced, and significantly improve qualification rate and the lumber recovery of product.
Embodiment 3
The steel band overall width of the present embodiment is 1080mm, and often row has 7 nozzle spray cooling waters, and symmetrically layout, above,
Under be respectively provided with 4 rows；The cooling water inflow for arranging corresponding nozzle up and down is identical；The crossed longitudinally mode of the nozzle of adjacent two rows correspondence position
Arrangement.
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is entered using the crossed longitudinally mode of nozzle
OK；Nozzle spray cooling is not set in the width of two back gauge edge 30mm of steel band, and in remaining 1020mm width range, 7 nozzles are equal
Even symmetric configuration；Spacing between each two nozzle is 125mm；Wherein, the 2nd, 4 layout of nozzle of 4 rows is in steel plate width
On heart line, which is away from steel plate edge apart from c4=510mm；Due to symmetric configuration centered on nozzle 4, thus nozzle 1 and nozzle 7 away from
The distance of steel plate edge is equal, i.e. c1= c7=135mm；Distance of the nozzle 2 with nozzle 6 away from steel plate edge is equal, i.e. c2=c6=
260mm；Distance of the nozzle 3 with nozzle 5 away from steel plate edge is equal, i.e. c3= c5=385mm；First order correction factor a takes 0.06,
Quadratic term correction factor b takes 0.0002；The cooling water inflow of each nozzle is calculated according to below equation and is set：
Ln=11.60 a*cn+b* cn 2
Above-mentioned known corresponding data is substituted into above formula to calculate, is drawn respectively：L1= L7=7.14 L/min, L2= L6=9.52
L/min, L3= L5=18.14 L/min；L4=33.02 L/min；
2）Preheated after conventional pickling and be incubated, preheating temperature is 72 DEG C, and is incubated under the preheating temperature, when
Between be
220 minutes；
3）Carrying out cold rolling, cold rolling the 1st time reduction ratio being controlled for 39%, the 2nd percentage pass reduction of control is 36%；Its tension force is
Conventional setting value；Carry out due to edge flawless therefore according to conventional setting value, without the need for reducing starting tension force；
4）Routine carries out rear operation.
After testing, cold rolling rear edge is produced without breach, brittle failure phenomenon, and plate shape is good, significantly improves the qualification rate of product
And lumber recovery.
Embodiment 4
The steel band overall width of the present embodiment is 1080mm, and often row has 7 nozzle spray cooling waters, and symmetrically layout, above,
Under be respectively provided with 4 rows；The cooling water inflow for arranging corresponding nozzle up and down is identical；The crossed longitudinally mode of the nozzle of adjacent two rows correspondence position
Arrangement.
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is entered using the crossed longitudinally mode of nozzle
OK；Nozzle spray cooling is not set in the width of two back gauge edge 30mm of steel band, and in remaining 1020mm width range, 7 nozzles are equal
Even symmetric configuration；Spacing between each two nozzle is 125mm；Wherein, the 2nd, 4 layout of nozzle of 4 rows is in steel plate width
On heart line, which is away from steel plate edge apart from c4=510mm；Due to symmetric configuration centered on nozzle 4, thus nozzle 1 and nozzle 7 away from
The distance of steel plate edge is equal, i.e. c1= c7=135mm；Distance of the nozzle 2 with nozzle 6 away from steel plate edge is equal, i.e. c2=c6=
260mm；Distance of the nozzle 3 with nozzle 5 away from steel plate edge is equal, i.e. c3= c5=385mm；First order correction factor a takes 0.05,
Quadratic term correction factor b takes 0.0002；The cooling water inflow of each nozzle is calculated according to below equation and is set：
Ln=11.60 a*cn+b* cn 2
Above-mentioned known corresponding data is substituted into above formula to calculate, is drawn respectively：L1= L7=8.50 L/min, L2= L6=
12.12 L/min, L3= L5=22.00 L/min；L4=38.12 L/min；
2）Preheated after conventional pickling and be incubated, preheating temperature is 76 DEG C, and is incubated under the preheating temperature, when
Between be
240 minutes；
3）Carrying out cold rolling, cold rolling the 1st time reduction ratio being controlled for 38%, the 2nd percentage pass reduction of control is 35%；Its tension force is
Conventional setting value；As edge has slight crackle, starting tension force is 90Mpa；
4）Routine carries out rear operation.
After testing, the extension of edge flawless, brittle failure phenomenon are produced, and plate shape is good, significantly improve product qualification rate and
Lumber recovery.
Embodiment 5
The steel band overall width of the present embodiment is 1080mm, and often row has 7 nozzle spray cooling waters, and symmetrically layout, above,
Under be respectively provided with 4 rows；The cooling water inflow for arranging corresponding nozzle up and down is identical；The crossed longitudinally mode of the nozzle of adjacent two rows correspondence position
Arrangement.
A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is entered using the crossed longitudinally mode of nozzle
OK；Nozzle spray cooling is not set in the width of two back gauge edge 30mm of steel band, and in remaining 1020mm width range, 7 nozzles are equal
Even symmetric configuration；Spacing between each two nozzle is 125mm；Wherein, the 2nd, 4 layout of nozzle of 4 rows is in steel plate width
On heart line, which is away from steel plate edge apart from c4=510mm；Due to symmetric configuration centered on nozzle 4, thus nozzle 1 and nozzle 7 away from
The distance of steel plate edge is equal, i.e. c1= c7=135mm；Distance of the nozzle 2 with nozzle 6 away from steel plate edge is equal, i.e. c2=c6=
260mm；Distance of the nozzle 3 with nozzle 5 away from steel plate edge is equal, i.e. c3= c5=385mm；First order correction factor a takes 0.06,
Quadratic term correction factor b takes 0.0001；The cooling water inflow of each nozzle is calculated according to below equation and is set：
Ln=11.60 a*cn+b* cn 2
Above-mentioned known corresponding data is substituted into above formula to calculate, is drawn respectively：L1= L7=5.32 L/min, L2= L6=2.76
L/min, L3= L5=3.32 L/min；L4=7.01 L/min；
2）Preheated after conventional pickling and be incubated, preheating temperature is 62 DEG C, and is incubated under the preheating temperature, when
Between be
60 minutes；
3）Carrying out cold rolling, cold rolling the 1st time reduction ratio being controlled for 41%, the 2nd percentage pass reduction of control is 38%；Its tension force is
Conventional setting value；Carry out due to edge flawless therefore according to conventional setting value, without the need for reducing starting tension force；
4）Routine carries out rear operation.
After testing, cold rolling rear edge is produced without breach, brittle failure phenomenon, and plate shape is good, significantly improves the qualification rate of product
And lumber recovery.
Above-described embodiment is only most preferably enumerated, and is not the restriction to embodiments of the present invention.
Claims (1)
1. a kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing, its step：
1）Directional silicon steel after to normalizing is cooled down, and its direction for cooling down current is carried out using the crossed longitudinally mode of nozzle；
Nozzle spray cooling, the cooling of remainder cooling according to each nozzle are not set in the width of two back gauge edge 30mm of steel band
Discharge is carried out；The cooling water inflow of n-th nozzle is calculated according to below equation and is set：Ln=11.60 a*cn+b* cn 2
In formula：LnRepresent that the cooling water inflow of n-th nozzle, unit are：L/min；
cnDistance of the nozzle away from steel band edge, unit is mm；
A is cnFirst order correction factor, its value be 0.05 ~ 0.06；
B is cn 2Quadratic term correction factor, its value be 0.0001 ~ 0.0002；
2）Preheated after conventional pickling and be incubated, preheating temperature control is not less than 60 DEG C, is incubated under preheating temperature, when
Between be 60 ~ 240 minutes；
3）Carry out cold rolling, the respective reduction ratio of cold rolling 1st and the 2nd passage is controlled 30 ~ 34% or 36 ~ 42%；Its tension force is normal
Rule setting value；When the edge in cold rolling front orientation silicon steel has micro-crack, then the tension force that started to walk is treated in 90 ~ 150Mpa
After stable, then its tension force is carried out according to conventional setting value；
4）Routine carries out rear operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644651.4A CN104475460B (en) | 2014-11-14 | 2014-11-14 | A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410644651.4A CN104475460B (en) | 2014-11-14 | 2014-11-14 | A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104475460A CN104475460A (en) | 2015-04-01 |
| CN104475460B true CN104475460B (en) | 2017-03-15 |
Family
ID=52750137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410644651.4A Active CN104475460B (en) | 2014-11-14 | 2014-11-14 | A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104475460B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019111571A (en) * | 2017-12-26 | 2019-07-11 | Ｊｆｅスチール株式会社 | Cold rolling method of ferrite stainless steel strip |
| CN108188176B (en) * | 2017-12-28 | 2019-04-23 | 武汉钢铁有限公司 | A kind of hot rolled silicon steel band production method |
| CN109365526B (en) * | 2018-11-18 | 2019-11-22 | 山西太钢不锈钢股份有限公司 | Rolling process acid continuous rolling process method of CGO orientation silicon steel |
| CN109807192B (en) * | 2019-01-30 | 2020-08-04 | 武汉钢铁有限公司 | Method for controlling flanging of high-magnetic-induction oriented silicon steel coil |
| CN113020278B (en) * | 2021-03-05 | 2022-07-22 | 武汉钢铁有限公司 | Method for prejudging cold rolling brittle failure occurrence of oriented silicon steel |
| CN113403463A (en) * | 2021-05-25 | 2021-09-17 | 鞍钢股份有限公司 | Production method for improving cold rolling processability of oriented silicon steel |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85100666B (en) * | 1985-04-01 | 1986-12-24 | 冶金部钢铁研究总院 | Low iron loss cold-rolled orientation silicon steel plate (containing 4 percent of si) and its preparation method |
| JP2670101B2 (en) * | 1988-09-14 | 1997-10-29 | 川崎製鉄株式会社 | Cold rolling method of silicon steel sheet |
| US5666842A (en) * | 1993-07-22 | 1997-09-16 | Kawasaki Steel Corporation | Method of cold rolling grain-oriented silicon steel sheet having excellent and uniform magnetic characteristics along rolling direction of coil and a roll cooling controller for cold rolling mill using the cold rolling method |
| JP3240035B2 (en) * | 1994-07-22 | 2001-12-17 | 川崎製鉄株式会社 | Manufacturing method of grain-oriented silicon steel sheet with excellent magnetic properties over the entire coil length |
| CN100467625C (en) * | 2005-10-31 | 2009-03-11 | 宝山钢铁股份有限公司 | Method for producing oriented silicon steel |
| CN101550480B (en) * | 2008-03-31 | 2010-10-06 | 鞍钢股份有限公司 | Method for producing oriented silicon steel by using pickling continuous-rolling mill |
| CN101745794A (en) * | 2008-12-15 | 2010-06-23 | 鞍钢股份有限公司 | Preparation technology of non-oriented high grade silicon steel |
| CN102477483B (en) * | 2010-11-26 | 2013-10-30 | 宝山钢铁股份有限公司 | Method for producing oriented silicon steel with excellent magnetic property |
| CN102534364B (en) * | 2010-12-17 | 2013-09-04 | 鞍钢股份有限公司 | Production method capable of improving magnetic property of common grain-oriented silicon steel |
| CN202316574U (en) * | 2011-11-11 | 2012-07-11 | 武汉钢铁(集团)公司 | Device for quickly interrupting and collecting cooling water among hot continuous mill standers |
-
2014
- 2014-11-14 CN CN201410644651.4A patent/CN104475460B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN104475460A (en) | 2015-04-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104475460B (en) | A kind of method that cold rolling side is split after control high magnetic induction grain-oriented silicon steel normalizing | |
| US9987669B2 (en) | Method for manufacturing thin strip continuously cast 700MPa-grade high strength weather-resistant steel | |
| US9863015B2 (en) | Manufacturing method for strip casting 550 MPa-grade high strength atmospheric corrosion-resistant steel strip | |
| CN109465295B (en) | Method for preventing edge cracking and strip breakage of hot continuous rolled steel plate in cold rolling | |
| CN103820731B (en) | Ultra-thin breadth wear-resisting steel plate and produce the method for this steel plate with large compression ratio | |
| CN105618491B (en) | A kind of Plate Production method, apparatus and control system for steel plate on-line solution | |
| CN103111464B (en) | Manufacturing method of super-thick steel plate | |
| CN107414049B (en) | Refining control method for metallographic structure of surface layer of corner of continuous casting slab | |
| KR102212807B1 (en) | Plant and method for hot rolling steel strip | |
| CN102080192A (en) | Low-yield ratio, high-plasticity, ultrafine-grain and high-strength steel and manufacturing method thereof | |
| JP2016516590A (en) | Method for manufacturing a metal strip | |
| CN107815598A (en) | 500MPa level earthquake-resistant constructions structure hot continuous rolling steel band and its production method | |
| CN103302262B (en) | Continuous casting plate blank surface quenching technology and used device | |
| CN110449465B (en) | Method for reducing cold-rolled edge fracture zone of high-hardenability cold-rolled high-strength steel | |
| CN109735699A (en) | The production method for preventing the no remarkable yield point of hot rolled ribbed bars containing niobium | |
| CN102248012A (en) | Cooling device and method for hot-rolling process of wire rod | |
| CN103484647A (en) | Production process of low-magnetic stainless steel band | |
| CN102240891A (en) | Method for producing hot-rolling U-shaped steel sheet pile with residual stress less than 100 MPa | |
| CN103286147B (en) | Hot-rolled board strip production line laminar cooling method | |
| CN103801580B (en) | Galvanized full-hard board cold-rolling edge crack control method in consideration of board shape | |
| CN108393456A (en) | A kind of Q345B slabs continuous casting billet structure control method | |
| CN104651735A (en) | Low-alloy wear-resistant steel with toughness being more than 50J/cm<2> and production method thereof | |
| CN104561770B (en) | High-strength high-plasticity high-carbon TWIP steel of molybdenum alloy and preparation method thereof | |
| CN104492827B (en) | A kind of using section cooling equipment carry out centre treat temperature production method | |
| CN103468911B (en) | Production process of austenite stainless steel belt |
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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170714 Address after: 430083 Qingshan District, Hubei, Wuhan factory before the door No. 2 Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right |