CN109789453A - Steel plate for manufacturing the device with excellent isotropic steel plate and being manufactured using it - Google Patents
Steel plate for manufacturing the device with excellent isotropic steel plate and being manufactured using it Download PDFInfo
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- CN109789453A CN109789453A CN201780059722.6A CN201780059722A CN109789453A CN 109789453 A CN109789453 A CN 109789453A CN 201780059722 A CN201780059722 A CN 201780059722A CN 109789453 A CN109789453 A CN 109789453A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- 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
- B21B37/46—Roll speed or drive motor control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B2275/00—Mill drive parameters
- B21B2275/02—Speed
- B21B2275/06—Product speed
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Abstract
An embodiment according to the present invention includes: milling train for manufacturing the device with excellent isotropic steel plate, has a plurality of rolling-mill housing for suppressing casting；And controller, it is connected to milling train and casting is pulled through to rolling-mill housing, compacting and the speed of discharge with control milling train, wherein the metallics recrystallization of the casting for making to be suppressed by any one in rolling-mill housing of milling train can be used in controller, then passes to the speed of posterior rolling-mill housing to control milling train.
Description
Technical field
This disclosure relates to the steel for manufacturing the device with excellent isotropic steel plate and being produced using it
Plate.
Background technique
Slab (a type of casting produced by continuous casting process) is sent to hot-rolling mill, is then added in heating furnace
Heat is to certain temperature or higher temperature to ensure the temperature for rolling.
The slab extracted from heating furnace is rolled via several steps by roughing mill, according to the thickness of final products
Degree ensures to roll the target thickness of casting (for example, bar).Then, it is finally rolled using finishing mill, to ensure product thickness
Degree.
In this case, each product is cut into slab unit in continuous casting process to correspond to the weight of final products
Amount, then passes to hot-rolling mill.In addition, controlling the plate extracted from heating furnace using the method cooled and heated etc.
The material temperature of base, to ensure the temperature at each Working position according to the property settings of product.
In detail, in final finishing mill, in order to ensure finishing mill inlet temperature and outlet temperature and ensure height
Productivity, rolling are carried out with constant speed or higher speed.
In the product produced using pair rolling method, rolled to according to high mill speed from the outlet of rolling-mill housing edge
Before the metallics (such as crystal grain) that direction processed is elongated is recrystallized, rolled again by posterior rolling-mill housing.
The product produced as described above has anisotropy, wherein the material property in rolling direction and width direction is omited
It is variant.
The anisotropy of material as described above is for may not be problem with general purpose product.However, if
It needs to process such as deep-draw (deep drawing) to form cup-shaped, then it may ear (earring) processed.Accordingly, it is possible to go out
Existing formed product defect.
If such ear processed is significantly, to be likely to occur the case where product cannot act as shaped article.Therefore, this can
Can lead to the yield rate of product reduces.
Therefore, to solve the above-mentioned problems, it is necessary to which research is for manufacturing the device with excellent isotropic steel plate
With the steel plate for using it to produce.
Summary of the invention
Technical problem
The one aspect of present disclosure can provide for manufacture with excellent isotropic steel plate device and
Using the steel plate that it is produced, described device can prevent the ear processed during formed product and improve yield rate.
Technical solution
According to one aspect of the present disclosure, include: for manufacturing the device with excellent isotropic steel plate
Milling train has a plurality of rolling-mill housing for suppressing casting；And controller, it is connected to milling train and is pulled through casting with controlling
Rolling-mill housing, rolling and the mill speed of discharge are rolled at this wherein the controller controls the milling train using mill speed
The metallics recrystallization for making the casting rolled by any one in the rolling-mill housing under speed processed, then passes to posterior roll
Machine rack.
Milling train for manufacturing the device with excellent isotropic steel plate is provided with positioned at the exit of conticaster
Roughing mill and finishing mill positioned at the exit of roughing mill and controller be connected to finishing mill to control the rolling of finishing mill
Speed.
For manufacture with excellent isotropic steel plate device controller control finishing mill mill speed with
Meet following formula:
15.5 < (t × v)/{ (n-1) × d } < 30.8
Wherein, t is the thickness (mm) of casting, and v is the delivery rate (m/ minutes) of the casting, and n, which is in finishing mill, includes
Rolling-mill housing number and d be the distance between adjacent rolling-mill housing (m).
In the finishing mill for manufacturing the device with excellent isotropic steel plate, the number n of rolling-mill housing is set
It is set to the rolling that the distance between 3 to 7 and adjacent rolling-mill housing d are set as 3m to 6.5m and controller control finishing mill
Speed is to meet following formula:
360 < t × v < 715
It according to an aspect of the present invention, include: to be used for for manufacturing the device with excellent isotropic steel plate
Produce the conticaster of casting；And milling train, the exit of conticaster is set to receive the casting from conticaster, and setting
There are a plurality of rolling-mill housing for rolling casting, wherein the milling train is provided with the roughing positioned at the exit of the conticaster
Machine and finishing mill positioned at the exit of roughing mill, meet following formula:
15.5 < (t × v)/{ (n-1) × d } < 30.8
Wherein, t is the thickness (mm) of casting, and v is the delivery rate (m/ minutes) of the casting, and n, which is in finishing mill, includes
Rolling-mill housing number and d be the distance between adjacent rolling-mill housing (m).
For manufacturing the device with excellent isotropic steel plate by not cutting the casting produced by conticaster
Milling train is sent in the case where cutting to carry out endless casting rolling (endless continuous casting and
rolling)。
According to another aspect of the present invention, using described for manufacturing the device with excellent isotropic steel plate
Isotropism steel plate is manufactured.
The isotropism steel plate be provided with the front end of the uniformity for being configured to have isotropic characteristics, rear end and
Middle part between front and rear end.
Beneficial effect
According to an exemplary implementation scheme in present disclosure, there is excellent isotropic steel plate for manufacturing
Device and using its produce steel plate the advantages of be, reduce about by rolling casting steel plate produced anisotropy
And increase isotropism.
Additionally, there are ensure material homogeneity and isotropism.
Therefore, have the effect of preventing the yield rate as caused by anisotropy from reducing to improve the productivity of product.
In more detail, it since the ear processed occurred during the deep-draw of cup-shaped etc. molding is reduced, prevents and is produced by molding
The problem of defect of product causes, therefore have the advantages that improve the yield rate of product.
Detailed description of the invention
Fig. 1 is to show the front view for being used to manufacture the device with excellent isotropic steel plate of the invention.
Fig. 2 is to show the controller and milling train for being used to manufacture the device with excellent isotropic steel plate of the invention
Front view.
Fig. 3 is shown in the finishing mill for being used to manufacture in the device with excellent isotropic steel plate of the invention
For ensuring the figure of isotropic velocity interval.
Fig. 4 is shown compared with the relevant technologies by of the invention for manufacturing the dress with excellent isotropic steel plate
The ear processed for setting generation forms the figure of height.
Specific embodiment
Hereinafter, the preferred embodiment of present disclosure will be described.However, the embodiment of present disclosure can be by
It modifies and there are various other forms, and scope of the present disclosure be not limited to embodiments described below.Additionally, it is provided
The embodiment of present disclosure is more fully to explain present disclosure to those skilled in the art.
In the following description, make to be presented with like reference characters the component with the same function in same range, show
Out in the attached drawing of each embodiment.
The present invention relates to the steel plates for manufacturing the device with excellent isotropic steel plate and being produced using it.?
Of the invention is used to manufacture in the device with excellent isotropic steel plate and the steel plate using its production, due to about logical
The anisotropy reduction and isotropism for crossing rolling casting steel plate produced increase, therefore prevent and caused by anisotropy
Yield rate reduce, to improve the productivity of product.
In other words, since the advantages of ear processed occurred during the deep-draw of cup-shaped etc. molding is reduced, be can have is,
It prevents the problem of being caused by the defect of shaped article and improves the yield rate of production.
In detail, Fig. 1 is to show the forward sight for being used to manufacture the device with excellent isotropic steel plate of the invention
Figure.Referring to Fig.1, an embodiment according to the present invention for manufacture have excellent isotropic steel plate device packet
Include: milling train 20 has a plurality of rolling-mill housing R for suppressing casting；With controller 30, milling train 20 is connected to control
Casting is pulled through rolling-mill housing R, rolling and the mill speed of discharge.30 use of controller makes by (n-1)th rolling-mill housing Rn-
The metallics recrystallization of the casting of 1 rolling, the mill speed for then passing to n-th of rolling-mill housing Rn thereafter are rolled to control
Machine 20.Here, n is the number for the rolling-mill housing R for including in milling train 20.
In other words, in order to reduce the anisotropy of rolling casting and increase isotropism, in a plurality of rolling-mill housing R
Mill operation during, casting is rolled in rolling-mill housing Rn-1 so that casting deformation, then completes the metallics of casting
Recrystallization.Then, it is controlled to be formed in posterior rolling-mill housing Rn and suppresses casting.
Here, the recrystallization of metallics refers to after deforming metallics by pressurization by forming new nucleus
And it recrystallizes, and in some cases may include the crystal growing process according to the growth of new nucleus.
Due to carrying out the formation of such new nucleus while keeping isotropism, common metal can be prevented brilliant
Body increases and isotropism reduction according to anisotropy.
Milling train 20 can be used for rolling casting to produce rolled plate.For this purpose, milling train 20 allows casting in a pair
Between roll by while it is rolled, and a plurality of rolling-mill housing R for being provided with a pair roller can be set.
Furthermore it is possible to which roughing mill 21 and finishing mill 22 is arranged, the roughing mill 21 is used in the casting for being provided to milling train 20
It is produced as carrying out being rolling to interior thickness before the final rolled plate product for being rolled into final thickness, the finishing mill 22 is used
In will be rolled by roughing mill 21 interior thickness t casting reproduction be the rolled plate with final thickness.
In other words, an embodiment according to the present invention for manufacture have excellent isotropic steel plate dress
The milling train 20 set may include the finish rolling positioned at the roughing mill 21 in the exit of conticaster 10 and positioned at the exit of roughing mill 21
Machine 22 and controller 30 are connected to finishing mill 22 to control the mill speed of finishing mill 22.
Here, roughing mill 21 is located at the exit of the conticaster 10 then described, to receive the casting produced by conticaster 10
Part and progress mill operation.In addition, finishing mill 22 is located at the exit of roughing mill 21, with receive by roughing mill 21 to its into
The casting of row mill operation, to be rolled, and to carry out the mill operation for producing final rolled plate product.
In detail, the number n for the rolling-mill housing R being arranged to roughing mill 21 and finishing mill 22 can be according to rolling produced
The characteristic of the material of steel plate controls.In addition, in all facilities, by the rolling-mill housing R that roughing mill 21 or finishing mill 22 are fixed
Number be not the rolling-mill housing R provided by roughing mill 21 or finishing mill 22 number.Here, in fixed milling train machine
In the number of frame R, the number n for being actually used in the rolling-mill housing of driving is the rolling-mill housing provided by roughing mill 21 or finishing mill 22
The number n of R.
In addition, since the isotropism of the rolled plate of final production is determined according to the mill speed of finishing mill 22,
Therefore it is preferred to be arranged to controller 30 to control the mill speed of the rolling-mill housing R in finishing mill 22.
Controller 30 can be used for controlling the mill speed of milling train 20, to reduce the anisotropy of rolled plate and increasing
Add isotropism.
In other words, controller 30 controls rolling-mill housing R using mill speed: passing through milling train machine under the mill speed
Frame Rn-1 rolls casting to complete casting after being rolled and before casting is rolled again by posterior rolling-mill housing Rn
Metallics recrystallization, to increase isotropism.
It is carried out after completing the recrystallization of metallics of casting via by controlling mill speed as described above
Subsequent rolling is isotropic the reason is that, when carrying out subsequent rolling before the recrystallization for carrying out metallics to improve
When, it cannot achieve the recrystallization isotropism of the fundamental characteristics as metallics.
In other words, it is not wherein completing and is losing in isotropic metallics due to recrystallizing, with below
Deformation is further accelerated during rolling, is unable to ensure and is enough to restore isotropic time.Therefore, it is further formed respectively by it
Anisotropy crystal.
In order to improve the isotropism of casting by more specifically controlling milling train 20, controller 30 can be in addition milling train
It is controlled while the thickness t of the distance between rack R d, the number n of rolling-mill housing R and casting are as variable.It then will ginseng
Its detailed description is described according to Fig. 2 to Fig. 4.
In addition, an embodiment according to the present invention is used to manufacture the device with excellent isotropic steel plate
Including conticaster 10, produces casting and the inlet of milling train 20 is set, and the casting of production is sent to milling train 20,
To carry out endless casting rolling.
In other words, an embodiment according to the present invention for manufacture have excellent isotropic steel plate dress
Setting includes: the conticaster 10 for producing casting；And milling train 20, the exit of conticaster 10 is set, and receives from company
The casting of casting machine 10, and there are a plurality of rolling-mill housing for rolling casting.Milling train 20 has going out positioned at conticaster 10
Roughing mill 21 at mouthful and the finishing mill 22 positioned at the exit of roughing mill 21, and meet following formula:
15.5 < (t × v)/{ (n-1) × d } < 30.8
Wherein, t is the thickness (mm) of casting, and v is the delivery rate (m/ minutes) of the casting, and n is to wrap in finishing mill 22
The number and d of the rolling-mill housing included are the distance between adjacent rolling-mill housing (m).
In addition, an embodiment according to the present invention is used to manufacture the device with excellent isotropic steel plate
The casting produced by conticaster 10 is sent to milling train 20 in the case where not cutting to carry out endless casting rolling.
As described above, in the present invention, casting plate rupture during the rolling process, distortion etc. in order to prevent is asked
Topic carries out endless casting rolling.
In other words, since the problem of the plate rupture of casting, distortion etc. is that occur in the front end of cutting casting or rear end
The problem of, therefore be configured to carry out endless casting rolling to roll continuous casting rather than cut casting.
Here, conticaster 10 can be used for producing casting by molten steel by casting technique.In other words, conticaster 10 is by molten steel
It is supplied to crystallizer from tundish, so that provided molten steel is lost heat to form casting, and casting is by fan-shaped section roll and pinch
Roller guides and moves and be provided to the milling train 20 then described.
Fig. 2 is to show 30 He of controller for manufacturing in the device with excellent isotropic steel plate of the invention
The front view of milling train 20；Fig. 3 is to show the essence for manufacturing in the device with excellent isotropic steel plate of the invention
The figure for being used to ensure isotropic velocity interval in milling train 22；And Fig. 4 is to show to be had by of the invention for manufacturing
The ear processed that the device of excellent isotropic steel plate generates forms height and forms the figure of height according to the ear processed of the relevant technologies.
Referring to Figure 2 to Figure 4, an embodiment according to the present invention has excellent isotropic steel for manufacturing
The controller 30 of the device of plate controls the mill speed of milling train 20 to meet following formula:
15.5 < (t × v)/{ (n-1) × d } < 30.8
Wherein, t is the thickness (mm) of casting, and v is the delivery rate (m/ minutes) of the casting, and n, which is in finishing mill, includes
Rolling-mill housing number and d be the distance between adjacent rolling-mill housing R (m).
In detail, the delivery rate v of casting is supply speed of the casting in the first rolling-mill housing R1 that casting initially enters
Rate, and correspond to the rate of the mill speed of the first rolling-mill housing R1.
In other words, in order to reduce the anisotropy of rolling casting and increase isotropism, in addition to control and rolling-mill housing R
The relevant casting of mill speed delivery rate v except, addition the distance between rolling-mill housing R d, finish rolling can also be passed through
The number n for the rolling-mill housing R for including in machine 22 and the thickness t of casting are controlled as variable.
When meeting formula, isotropism may insure by the steel plate of Rolling Production.In addition, material homogeneity is also together with each
Ensured together to the same sex.
In other words, if the upper limit is more than 30.8, it is unable to ensure the isotropism of rolled plate.On it is desirable, therefore, to assure that
Limit.In addition, material homogeneity reduces if lower limit is less than 15.5.It is desirable, therefore, to assure that lower limit.
Here, material homogeneity occurs due to the size difference of crystal grain in a thickness direction, above-mentioned difference is by low rolling
Temperature generates, and low rolling temperature is influenced by low mill speed.
In addition, the experimental data for exporting for ensuring isotropic formula is as follows.Wherein, O indicate isotropism or
Material homogeneity is able to the state ensured completely；△ indicates that isotropism or material homogeneity are able to the boundary ensured；And X table
The state ensured can not be able to by showing isotropism or material homogeneity at all.
Firstly, the distance between the thickness t of casting, the number n of rolling-mill housing and rolling-mill housing d are fixed in table 1
And casting delivery rate v be variation.Where it determines that whether providing isotropism.
[table 1]
In table 2 and 3, the thickness t of casting and the delivery rate v of casting be fixed and rolling-mill housing number n and
The distance between rolling-mill housing d is variation.Where it determines that whether providing isotropism.
[table 2]
[table 3]
[table 4]
As described above, determining that isotropism and material homogeneity are ensured when meeting formula.
Meanwhile the variation of the thickness t according to casting, the mill speed of the entrance of the finishing mill 22 controlled by controller 30
Range is shown in the graph in fig. 3.In other words, when the thickness t of casting is about 10mm, determine that needing to control minimum speed is about
36m/ minutes, and needing to control maximum speed is about 72m/ minutes.
For the control above by controller 30, when the number n of limitation rolling-mill housing R is between 5 and rolling-mill housing R
Distance d when being about 5.8mm, can be controlled by the delivery rate v of the thickness t of controlled rolling casting and casting to produce tool
There is isotropic steel plate.
In other words, in an embodiment according to the present invention for manufacturing with excellent isotropic steel plate
In the milling train 20 of device, the number n of rolling-mill housing R is set as the distance between 3 to 7 and adjacent rolling-mill housing R d and is set as
3m to 6.5m.In addition, controller 30 controls the mill speed of milling train 20 to meet following formula:
360 < t × v < 715
In another aspect, the control range of the thickness t of the delivery rate v and casting of casting recited above can make
It is determined with the quality stream by milling train 20 of casting.In other words, it is controlled as in the lower limit value of the quality stream by milling train 20
360mmm/ minutes and upper limit value are controlled as the steel plate produced at 715mmm/ minutes and can keep isotropic spy
Property.
For example, if the thickness t of the casting flowed into the entrance of milling train 20 is 16mm and the delivery rate v of casting is
60m/ minutes, then quality stream is 960, this is outside the range proposed.Therefore, it is impossible to produce steel while ensuring isotropism
Plate.However, if the thickness t of casting is 16mm and the delivery rate v of casting is 36m/ minutes, quality stream 576, this
In the range of proposing.Therefore, steel plate is produced while ensuring isotropism.
In addition, when controlling milling train 20, needing be suitable by the temperature limiting of casting in order to ensure the isotropism of steel plate
Casting is supplied while the temperature rolled.
For example, the temperature for being supplied to the casting of the entrance of finishing mill 22 is preferably protected when controller 30 controls finishing mill 22
It holds at about 950 DEG C to 1100 DEG C.In this case it is preferable to be maintained at about by the temperature for being expelled to the rolled plate of outlet
Rolled plate is discharged while 700 DEG C to 900 DEG C.
As described above, through the invention for manufacture have excellent isotropic steel plate device steel produced
Plate may insure isotropism.
In other words, it can be used described for manufacturing the device manufacturing with excellent isotropic steel plate according to this hair
The isotropism steel plate of another bright embodiment.
Referring to Fig. 4, it can determine and ensure isotropism as described above.Fig. 4 is shown wherein when use is according to the relevant technologies
The steel plate of production and the steel plate produced according to an embodiment carry out the result of observation ear processed when deep-draw.
Referring to fig. 4, in the steel plate produced through the invention, when carrying out deep-draw, ear processed forms height in molded product
It is uniform at each position in peripheral direction.However, in the steel plate produced according to the relevant technologies, when carrying out deep-draw,
The inhomogeneities that ear processed forms height is significant.Accordingly, it is determined that being likely to occur forming defect.
In other words, compared with the steel plate according to the relevant technologies, the steel plate that produces through the invention has excellent each to same
Property.
In addition, in the isotropism steel plate of another embodiment according to the present invention, front end, rear end and therebetween
Middle part there are isotropic characteristics, be configured to uniform.
In other words, the above-mentioned casting that will be produced by conticaster 10 for manufacturing the device with excellent isotropic steel plate
Part is sent to milling train 20 in the case where not cutting to carry out endless casting rolling.Then, even if when casting is eventually as cutting
When steel plate is discharged, steel plate is also manufactured in continuously.Therefore, though when finally cut when, can be provided in front end, after
Isotropic characteristics at end and the middle part between front and rear end are uniform to be configured to.
Claims (8)
1. a kind of device for manufacturing with excellent isotropic steel plate, comprising:
Milling train, the milling train have a plurality of rolling-mill housing for rolling casting；With
Controller, the controller be connected to the milling train with control by the casting be pulled through the rolling-mill housing, rolling and
The mill speed of discharge,
Wherein the controller controls the milling train using mill speed, makes under the mill speed by the rolling-mill housing
The metallics recrystallization of the casting of any one rolling, then passes to posterior rolling-mill housing.
2. it is according to claim 1 for manufacturing the device with excellent isotropic steel plate, wherein the milling train
It is provided with the finishing mill positioned at the roughing mill in the exit of conticaster and positioned at the exit of the roughing mill, and
The controller is connected to the finishing mill to control the mill speed of the finishing mill.
3. it is according to claim 2 for manufacturing the device with excellent isotropic steel plate, wherein the control
Device controls the mill speed of the finishing mill to meet following formula:
15.5 < (t × v)/{ (n-1) × d } < 30.8
Wherein t is the thickness (mm) of casting, and v is the delivery rate (m/ minutes) of the casting, includes in the n finishing mill
The number and d of rolling-mill housing are the distance between adjacent rolling-mill housing (m).
4. it is according to claim 2 for manufacturing the device with excellent isotropic steel plate, wherein in the essence
In milling train, the number n of the rolling-mill housing is set as the distance between 3 to 7 and adjacent rolling-mill housing d and is set as 3m extremely
6.5m, and
The controller controls the mill speed of the finishing mill to meet following formula:
360 < t × v < 715
It is the delivery rate (m/ minutes) of the casting that wherein t, which is thickness (mm) and the v of casting,.
5. a kind of device for manufacturing with excellent isotropic steel plate, comprising:
For producing the conticaster of casting；With
The exit of the conticaster is arranged in receive the casting from the conticaster in milling train, the milling train, and
A plurality of rolling-mill housing for rolling the casting are provided with,
Wherein the milling train is provided with positioned at the roughing mill in the exit of the conticaster and positioned at the exit of the roughing mill
Finishing mill, and
Meet following formula:
15.5 < (t × v)/{ (n-1) × d } < 30.8
Wherein t is the thickness (mm) of casting, and v is the delivery rate (m/ minutes) of the casting, includes in the n finishing mill
The number and d of rolling-mill housing are the distance between adjacent rolling-mill housing (m).
6. it is according to claim 5 for manufacture the device with excellent isotropic steel plate, by will be by described
The casting of conticaster production is sent to the milling train in the case where not cutting to carry out endless casting rolling.
7. a kind of isotropism steel plate, using it is according to any one of claim 1 to 6 for manufacture have it is excellent each
It is manufactured to the device of the steel plate of the same sex.
8. isotropism steel plate according to claim 7 is configured to have respectively wherein the isotropic steel plate is provided with
To the front end of the uniformity of same sex characteristic, rear end and the middle part between the front end and the rear end.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020160125713A KR101786388B1 (en) | 2016-09-29 | 2016-09-29 | Manufacturing apparatus and method for steel sheet superior in isotropy and steel sheet being manufactured thereof |
| KR10-2016-0125713 | 2016-09-29 | ||
| PCT/KR2017/010233 WO2018062749A1 (en) | 2016-09-29 | 2017-09-19 | Apparatus for manufacturing steel plate having excellent isotropy, and steel plate manufactured using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109789453A true CN109789453A (en) | 2019-05-21 |
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ID=60296408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780059722.6A Pending CN109789453A (en) | 2016-09-29 | 2017-09-19 | Steel plate for manufacturing the device with excellent isotropic steel plate and being manufactured using it |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2019529116A (en) |
| KR (1) | KR101786388B1 (en) |
| CN (1) | CN109789453A (en) |
| WO (1) | WO2018062749A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20240098851A (en) * | 2022-12-21 | 2024-06-28 | 주식회사 포스코 | Non-oriented electrical steel sheet and method for manufacturing the same |
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| CN1243547A (en) * | 1997-09-11 | 2000-02-02 | 川崎制铁株式会社 | Hot rolled steel plate to be processed having hyper fine particles, method of manufacturing the same, and method of manufacturing cold rolled steel plate |
| CN1257933A (en) * | 1998-11-10 | 2000-06-28 | 川崎制铁株式会社 | Hot-rolled steel plate having superfine grains for machining, and mfg. method thereof |
| KR20050069306A (en) * | 2003-12-31 | 2005-07-05 | 주식회사 포스코 | Controlling method of finishing rolling condition for very low corbon steel sheet |
| CN101291750A (en) * | 2005-10-21 | 2008-10-22 | 达涅利机械工业有限公司 | Process and plant for producing metal strip |
| CN101484593A (en) * | 2006-06-26 | 2009-07-15 | 西马克·德马格公司 | A method and a system for producing hot-rolled strip silicon steel based on thin slabs |
| CN103451530A (en) * | 2013-08-29 | 2013-12-18 | 舞阳钢铁有限责任公司 | Hydroelectric normalized high strength steel sheet with great thickness and easy to weld and production method thereof |
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| DE102005052774A1 (en) * | 2004-12-21 | 2006-06-29 | Salzgitter Flachstahl Gmbh | Method of producing hot strips of lightweight steel |
| DE102007005015A1 (en) * | 2006-06-26 | 2008-01-03 | Sms Demag Ag | Process and plant for the production of hot rolled strip of silicon steel based on thin slabs |
| KR101271973B1 (en) * | 2006-12-27 | 2013-06-07 | 주식회사 포스코 | Method for single phase rolling in mimi-mill processing |
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| CN1243547A (en) * | 1997-09-11 | 2000-02-02 | 川崎制铁株式会社 | Hot rolled steel plate to be processed having hyper fine particles, method of manufacturing the same, and method of manufacturing cold rolled steel plate |
| CN1257933A (en) * | 1998-11-10 | 2000-06-28 | 川崎制铁株式会社 | Hot-rolled steel plate having superfine grains for machining, and mfg. method thereof |
| KR20050069306A (en) * | 2003-12-31 | 2005-07-05 | 주식회사 포스코 | Controlling method of finishing rolling condition for very low corbon steel sheet |
| CN101291750A (en) * | 2005-10-21 | 2008-10-22 | 达涅利机械工业有限公司 | Process and plant for producing metal strip |
| CN101484593A (en) * | 2006-06-26 | 2009-07-15 | 西马克·德马格公司 | A method and a system for producing hot-rolled strip silicon steel based on thin slabs |
| CN103451530A (en) * | 2013-08-29 | 2013-12-18 | 舞阳钢铁有限责任公司 | Hydroelectric normalized high strength steel sheet with great thickness and easy to weld and production method thereof |
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| JP2019529116A (en) | 2019-10-17 |
| WO2018062749A1 (en) | 2018-04-05 |
| KR101786388B1 (en) | 2017-10-18 |
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