CN108543922A - Fan-shaped section secondary cooling system is used under a kind of solidification end weight - Google Patents
Fan-shaped section secondary cooling system is used under a kind of solidification end weight Download PDFInfo
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- CN108543922A CN108543922A CN201810720267.6A CN201810720267A CN108543922A CN 108543922 A CN108543922 A CN 108543922A CN 201810720267 A CN201810720267 A CN 201810720267A CN 108543922 A CN108543922 A CN 108543922A
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- nozzle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
- B22D11/1246—Nozzles; Spray heads
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Abstract
The invention belongs to metallurgical technology fields, fan-shaped section secondary cooling system is used under the solidification end weight cooled down more particularly to a kind of continuous casting, including being mounted in conticaster horizontal segment, cooling corresponding with outer arc roll segment and inner arc roll segment and sweep squama nozzle by force, cooling nozzles corresponding with inner arc roll segment and outer arc roll segment and strong squama nozzle of sweeping are distributed in a manner of horizontally and vertically interlocking, and both ends are along the axially opposing placement of roll segment between first roller and second roller and nozzle is horizontal by angle for horizontally disposed nozzle；Corresponding cooling nozzles and the strong squama nozzle and vertical direction swept are in angle between vertical arrangement and first roller and second roller.The present invention can meet the cooling required of fan-shaped section roller itself, be conducive to keep the kilter of fan-shaped section, extend the service life of fan-shaped section, solidification end can be met again to the cooling of strand and the cleaning needs of scale on surface, be conducive to outer arc in slab uniformly to cool down, slab buckling deformation is prevented, ensures continuous casting billet quality.
Description
Technical field
The invention belongs to metallurgical technology fields, and in particular to use fan-shaped section two under a kind of solidification end weight of continuous casting cooling
Cooling system.
Background technology
With the fast development of manufacturing industry and science and technology, the internal soundness of steel is put forward higher requirements, center is dredged
Pine and central pipe are the principal elements for restricting continuous casting billet internal soundness, propose solidification end weight Reduction Technology thus.Continuous casting is solidifying
Gu end weight Reduction Technology is casting billet surface and the larger feature of the center portion temperature difference to be made full use of, to strand in casting blank solidification latter stage
Carry out aximal deformation value pressure, enable drafts fully penetrated arrive strand center portion, to reach soldering solidify shrinkage cavity it is loose, even
Refine the technological effect of center portion austenite grain.
The external type of cooling of outer arc is that cooling nozzles are arranged vertically in traditional conticaster horizontal segment, this arrangement energy
Meet the cooling of high temperature slab to require, but the scale removal effect of the cooling and semifinished product surface to fan-shaped section roller itself is bad, is easy
Make fan-shaped section roller deformed damaged and the accumulation of semifinished product scale on surface at high temperature, influences the functions of the equipments of continuous casting machine fan-shaped segment
And then the quality of continuous casting is influenced, but also fan-shaped section reduced service life, increases cost.
Currently, the conticaster horizontal segment outer arc type of cooling is cooling nozzles between fan-shaped section roll under solidification end weight
It is horizontally disposed, and the external type of cooling of fan-shaped section inner arc is cooling nozzles is arranged vertically between fan-shaped section roll, this arrangement energy
It is enough to meet the cooling of fan-shaped section roller itself very well, but continuous casting billet can not be carried out to continue cooling and sweep squama by force, lead to continuous casting billet
Interior outer arc inhomogeneous cooling is even, and buckling deformation occurs for slab, and the accumulation of continuous casting billet scale on surface influences fortune of the strand on roller-way
Defeated and damage roller-way equipment.
Chinese utility model patent (Authorization Notice No. CN202006272U) discloses a kind of conticaster horizontal segment cooling
Device, the device include the cooling nozzles for being placed in outer arc roll segment and inner arc roll segment in conticaster horizontal segment, outer arc roll segment
Cooling nozzles by it is horizontal and it is vertical staggeredly in a manner of be distributed, horizontally disposed cooling nozzles are from both ends phase between adjacent outer arc roller
To placement, the cooling nozzles of vertical arrangement dispose upward between adjacent outer arc roller；The cooling nozzles of inner arc roll segment are in lower end point
The Y shape of fork, is placed between adjacent inner arc roller, two inverted Y-shaped multi-branched nozzles are respectively toward to two adjacent inner arc rollers.Its deficiency
Be in：Strand and roller uneven heating can be caused, causes strand edge cracked and buckling deformation.Additionally due to horizontal cloth
The nozzle set without angle of inclination, remove, and causes to cast by the iron scale that vertically arranged nozzle can not effectively will accumulate in middle part
The iron scale on base surface is accumulated, and transport and damage roller-way equipment of the strand on roller-way are influenced.
Invention content
In view of the above-mentioned problems of the prior art, present invention aims at：It is proposed one kind it is possible to prevente effectively from slab is stuck up
Fan-shaped section secondary cooling system is used under the solidification end weight of song deformation and the accumulation of continuous casting billet scale on surface.
Technical scheme is as follows：
Fan-shaped section secondary cooling system is used under a kind of solidification end weight, including be mounted in conticaster horizontal segment, with it is outer
Arc roll segment and the corresponding cooling of inner arc roll segment and it is strong sweep squama nozzle, it is corresponding above and below inner arc roll segment and outer arc roll segment；With inner arc roller
Section cooling nozzles corresponding with outer arc roll segment and strong squama nozzle of sweeping are distributed in a manner of horizontally and vertically interlocking, wherein：Horizontal cloth
Both ends are along the axially opposing placement of roll segment between first roller and second roller and nozzle is horizontal by angle for the nozzle set；It is perpendicular
The nozzle directly arranged be divided into cooling nozzles and it is strong sweep between squama nozzle, and first roller and second roller corresponding cooling nozzles and
It is strong to sweep squama nozzle with vertical direction in angle.
Fan-shaped section secondary cooling system is used under the solidification end weight, in inner arc roll segment, horizontally disposed transverse direction nozzle exists
It is being formed between first roller and second roller, positioned at lower part V-groove both ends along the axially opposing placement of roll segment, and lateral nozzle
Horizontal by angle α, 2 °≤α≤5 °, lateral jet expansion is lower surface that is upward, being directed toward inner arc roll segment.
Fan-shaped section secondary cooling system is used under the solidification end weight, in inner arc roll segment, the nozzle arranged vertically is divided into perpendicular
To cooling nozzles, there are the vertical cooling nozzles in angle of inclination and sweep squama nozzle by force, the cooling nozzles tool between adjacent inner arc roll segment
Have at least two, the spaced top between adjacent inner arc roll segment, with the vertical cooling nozzles in angle of inclination and by force
Sweep top of the squama nozzle between first roller and second roller.
Fan-shaped section secondary cooling system is used under the solidification end weight, in outer arc roll segment, horizontally disposed transverse direction nozzle exists
V-groove both ends formed between first roller and second roller, superposed are along the axially opposing placement of roll segment, and lateral nozzle
Horizontal by angle α, 2 °≤α≤5 °, lateral jet expansion is upper surface that is downward, being directed toward outer arc roll segment.
Fan-shaped section secondary cooling system is used under the solidification end weight, in outer arc roll segment, the nozzle arranged vertically is divided into perpendicular
To cooling nozzles, there are the vertical cooling nozzles in angle of inclination and sweep squama nozzle by force, the cooling nozzles tool between adjacent outer arc roll segment
Have at least two, the spaced lower section between adjacent outer arc roll segment, with the vertical cooling nozzles in angle of inclination and by force
Sweep lower section of the squama nozzle between first roller and second roller.
Fan-shaped section secondary cooling system is used under the solidification end weight, it is two to have the vertical cooling nozzles in angle of inclination,
Strong squama nozzle of sweeping is four, and each there are the vertical cooling nozzles in angle of inclination to be located at two strong sweep and form one group between squama nozzle,
Totally two groups, every group of three nozzles tilt outward, angle of inclination：17°≤β≤20°.
Use fan-shaped section secondary cooling system under the solidification end weight, the outer diameter of first roller is more than the outer of second roller
Diameter there are the vertical cooling nozzles in angle of inclination and strong squama nozzle of sweeping to be tilted respectively to first roller direction, angle of inclination：4°≤γ
≤7°。
Use fan-shaped section secondary cooling system under the solidification end weight, cooling nozzles of inner arc roll segment and outer arc roll segment and strong
It sweeps squama nozzle and is all made of gas-vapor mix nozzle.
Fan-shaped section secondary cooling system is used under the solidification end weight, outer arc roll segment cooling nozzles and sweeps squama nozzle spray by force
Amount is inner arc roll segment cooling nozzles and strong sweep squama nozzle spray amount 1~1.5 times.
Fan-shaped section secondary cooling system is used under the solidification end weight, what inner arc roll segment and outer arc roll segment horizontal direction were arranged
Lateral nozzle and the strong water for sweeping squama nozzle arranged in a vertical direction are fixed.
Advantages of the present invention and advantageous effect are：
1, the present invention can meet fan-shaped section roll by changing fan-shaped section cooling nozzles arrangement under conventional coagulation weight
The sub cooling required of itself is conducive to the kilter for keeping fan-shaped section, extends the service life of fan-shaped section, and can meet solidification
End needs the cooling of strand and the cleaning of scale on surface, is conducive to outer arc in slab and uniformly cools down, prevents slab from sticking up
Song deformation, saves equipment cost, ensures continuous casting billet quality.
2, fan-shaped section secondary cooling system, the lateral cooling nozzles after first pair of nip rolls is used to go out under solidification end weight of the present invention
Mouth is in tilted layout to nip rolls, layout angle >=2 °, can effectively clean iron scale to both sides, prevent iron scale in
The heart is accumulated, and the nozzle arranged vertically is assisted uniformly to cool down.Three on the left of six nozzles arranged after first pair of nip rolls incline to the left
Tiltedly, three of right side are tilted to the right, and layout angle >=17 ° are swept by force so as to preferably clean to reach to both sides by iron scale
The purpose of squama.Since first pair of nip rolls is that there are sizes is poor for major diameter nip rolls and second pair of nip rolls, therefore the nozzle arranged vertically is answered
Certain angle is tilted to first pair of nip rolls direction, layout angle >=4 °, which can more effectively reach, cleans iron scale and cooling
The purpose of strand and roller.
3, different from Chinese utility model patent (Authorization Notice No. CN202006272U), the present invention does not use inverted Y-shaped cold
But nozzle, due to being applied in solidification end period and conventional levels section fan-shaped section with fan-shaped section secondary cooling system under the weight of the present invention
Fan-shaped section under difference, especially weight more emphasizes the cleaning of iron scale under solidification end weight with fan-shaped section secondary cooling system
With the uniform cooling of strand, oxidized iron sheets on surface of casting blank can not be removed effectively and can not be uniformly cold by inverted Y-shaped cooling nozzles
But strand.
Description of the drawings
Fig. 1 is the inner arc roll segment cooling of fan-shaped section secondary cooling system under one embodiment of the invention solidification end weight and sweeps by force
Squama nozzle is distributed stereogram.In figure, the last 1 sweeps squama nozzle；The vertical cooling nozzles of 2-1；2-2 has angle of inclination vertically cooling spray
Mouth；3 lateral cooling nozzles；4 first rollers；5 second rollers.
Fig. 2 is the outer arc roll segment cooling of fan-shaped section secondary cooling system under another embodiment of the present invention solidification end weight and sweeps by force
Squama nozzle is distributed stereogram.In figure, the last 1 sweeps squama nozzle；The vertical cooling nozzles of 2-1；2-2 has angle of inclination vertically cooling spray
Mouth；3 lateral cooling nozzles；4 first rollers；5 second rollers.
Specific implementation mode
As Figure 1-Figure 2, in specific implementation process, two cold system of fan-shaped section is used under solidification end weight of the invention
It unites, includes mainly：In conticaster horizontal segment, cooling corresponding with outer arc roll segment and inner arc roll segment and strong sweep squama spray
It is corresponding above and below mouth, inner arc roll segment and outer arc roll segment.
In the following, being further elaborated on to the present invention by drawings and examples.
Embodiment 1
As shown in Figure 1, in the present embodiment, cooling nozzles (lateral cooling nozzles 3, the vertical cooling nozzles 2- of inner arc roll segment
1, there is the vertical cooling nozzles 2-2 in angle of inclination) and strong squama nozzle 1 of sweeping be distributed in a manner of horizontally and vertically interlocking, horizontal cloth
It is that the lateral cooling nozzles 3 set are formed between first roller 4 and second roller 5, positioned at lower part V-groove both ends along roll segment axis
To arranged opposite, and lateral cooling nozzles 3, horizontal by certain angle α (2 °≤α≤5 °), lateral cooling nozzles 3 export
For lower surface that is upward, being directed toward inner arc roll segment, the function and effect using the angle are：It can be effectively by iron scale to two
Side cleans, and prevents iron scale from being accumulated to center, and the nozzle arranged vertically is assisted uniformly to cool down.The nozzle arranged vertically is divided into perpendicular
To cooling nozzles 2-1, there is the vertical cooling nozzles 2-2 in angle of inclination and sweep squama nozzle 1, the cooling between adjacent inner arc roll segment by force
Nozzle (vertical cooling nozzles 2-1, with the vertical cooling nozzles 2-2 in angle of inclination) is spaced to be mounted on at least two
Top between adjacent inner arc roll segment has the vertical cooling nozzles 2-2 in angle of inclination and sweeping squama nozzle 1 is located at first roller 4 by force
With the top between second roller 5.Wherein, it is two to have the vertical cooling nozzles 2-2 in angle of inclination, and it is four to sweep squama nozzle 1 by force
It is a, each there is the vertical cooling nozzles 2-2 in angle of inclination to be located at two strong sweep and form one group between squama nozzle 1, totally two groups, every group
Three nozzles tilt outward, i.e.,：Six nozzles of the arrangement, three of left side be axially tilted to the left along roll segment, right side
Three are axially tilted to the right (Fig. 1) along roll segment, angle of inclination：17 °≤β≤20 °, so as to ensureing cooling uniform condition
Under, iron scale is cleaned to both sides preferably and achievees the purpose that sweep squama by force.
In addition, the outer diameter of first roller 4 be more than second roller 5 outer diameter, have the vertical cooling nozzles 2-2 in angle of inclination and
Sweep squama nozzle 1 tilts certain angle, angle of inclination to first 4 direction of roller respectively by force：4 °≤γ≤7 °, can make flow with
Casting billet surface comes into full contact with, more effectively to achieve the purpose that clean iron scale and cooling strand and roller.
Wherein, the technical indicator for sweeping squama nozzle by force is：Gas-vapor mix nozzle, single-nozzle 2~20L/min of water are used
Sweeping the function and effect of squama nozzle by force is：It can be effectively removed the iron scale of casting billet surface, prevent the center stack of iron scale
Product, uniform slab cooling.Strong squama nozzle of sweeping plays the role of main cleaning, and it is clear that horizontally disposed transverse direction cooling nozzles play time level-one
The effect of sweeping.
Embodiment 2
As shown in Fig. 2, the cooling of outer arc roll segment and strong sweeping squama nozzle and the arrangement of inner arc roll segment is essentially identical.This reality
It applies in example, (lateral cooling nozzles 3, there is the cooling nozzles of outer arc roll segment angle of inclination vertically to cool down at vertical cooling nozzles 2-1
Nozzle 2-2) and strong squama nozzle 1 of sweeping be distributed in a manner of horizontally and vertically interlocking, horizontally disposed transverse direction cooling nozzles 3 are first
V-groove both ends formed between root roller 4 and second roller 5, superposed are along the axially opposing placement of roll segment, and laterally cooling spray
For mouth 3 horizontal by certain angle α (2 °≤α≤5 °), the outlet of lateral cooling nozzles 3 is downward, direction outer arc roll segment upper
Surface, the function and effect using the angle are：Effectively iron scale can be cleaned to both sides, prevent iron scale in
The heart is accumulated, and the nozzle arranged vertically is assisted uniformly to cool down.The nozzle arranged vertically is divided into vertical cooling nozzles 2-1, has inclination
The vertical cooling nozzles 2-2 of angle and squama nozzle 1 is swept by force, cooling nozzles between adjacent outer arc roll segment (vertical cooling nozzles 2-1,
With the vertical cooling nozzles 2-2 in angle of inclination) at least two, it is spaced be mounted between adjacent outer arc roll segment under
Side, under there is the vertical cooling nozzles 2-2 in angle of inclination and sweep squama nozzle 1 between first roller 4 and second roller 5 by force
Side.Wherein, it is two to have the vertical cooling nozzles 2-2 in angle of inclination, and it is four to sweep squama nozzle 1 by force, each has angle of inclination
Vertical cooling nozzles 2-2 is located at two strong sweep and forms one group between squama nozzle 1, and totally two groups, every group of three nozzles tilt outward,
I.e.：Six nozzles of the arrangement, three of left side be axially tilted to the left along roll segment, three of right side it is axial to Right deviation along roll segment
Tiltedly (Fig. 2), angle of inclination：17 °≤β≤20 °, so as under the conditions of ensureing cooling uniform, preferably by iron scale
It is cleaned to both sides and achievees the purpose that sweep squama by force.
In addition, the outer diameter of first roller 4 be more than second roller 5 outer diameter, have the vertical cooling nozzles 2-2 in angle of inclination and
Sweep squama nozzle 1 tilts certain angle, angle of inclination to first 4 direction of roller respectively by force：4 °≤γ≤7 °, can make flow with
Casting billet surface comes into full contact with, more effectively to achieve the purpose that clean iron scale and cooling strand and roller.
Wherein, the technical indicator for sweeping squama nozzle by force is：Gas-vapor mix nozzle, single-nozzle 2~20L/min of water are used
Sweeping the function and effect of squama nozzle by force is：It can be effectively removed the iron scale of casting billet surface, prevent the center stack of iron scale
Product, uniform slab cooling.Strong squama nozzle of sweeping plays the role of main cleaning, and it is clear that horizontally disposed transverse direction cooling nozzles play time level-one
The effect of sweeping.
In embodiment, the cooling nozzles and strong squama nozzle of sweeping of inner arc roll segment and outer arc roll segment are all made of gas-vapor mix spray
Mouth.Outer arc roll segment cooling nozzles and squama nozzle spray amount is swept by force, is inner arc roll segment cooling nozzles and sweeps the 1 of squama nozzle spray amount by force
~1.5 times.The lateral cooling nozzles and strong squama of sweeping arranged in a vertical direction of inner arc roll segment and outer arc roll segment horizontal direction arrangement are sprayed
The water of mouth is fixed.Cooling device outside fan-shaped section secondary cooling system is used under solidification end weight in addition, only changing, such as：Roller
The type of cooling at other positions such as internal cooling, bearing block is still constant.
It is demonstrated experimentally that after the present invention is implemented, the cooling required of fan-shaped section roller itself can be met, be conducive to keep fan-shaped
The kilter of section, extends the service life of fan-shaped section, and can meet cooling and scale on surface of the solidification end to strand
Cleaning need, be conducive to outer arc in slab and uniformly cool down, prevent slab buckling deformation, save equipment cost, ensure continuous casting billet
Quality.
Embodiment described above is merely preferred embodiments of the present invention, and protection scope of the present invention is not limited to
This, any technical person familiar with the field is in the technical scope of present disclosure, the technical side that can become apparent to
The simple change or equivalence replacement of case, all belong to the scope of protection of the present invention within.
Claims (10)
1. using fan-shaped section secondary cooling system under a kind of solidification end weight, which is characterized in that horizontal fan-shaped including being mounted on conticaster
Duan Zhong, cooling corresponding with outer arc roll segment and inner arc roll segment and it is strong sweep squama nozzle, it is corresponding above and below inner arc roll segment and outer arc roll segment；
Cooling nozzles corresponding with inner arc roll segment and outer arc roll segment and strong squama nozzle of sweeping are distributed in a manner of horizontally and vertically interlocking,
In：Horizontally disposed nozzle between first roller and second roller both ends along the axially opposing placement of roll segment and nozzle and horizontal plane
In angle；The nozzle arranged vertically is divided into cooling nozzles and sweeps by force corresponding between squama nozzle, and first roller and second roller
Cooling nozzles and the strong squama nozzle and vertical direction swept are in angle.
2. using fan-shaped section secondary cooling system under solidification end weight according to claim 1, which is characterized in that inner arc roll segment
In, it is horizontally disposed transverse direction nozzle formed between first roller and second roller, positioned at lower part V-groove both ends along roll segment
Axially opposing placement, and lateral nozzle, horizontal by angle α, 2 °≤α≤5 °, lateral jet expansion is upwards, is directed toward inner arc
The lower surface of roll segment.
3. using fan-shaped section secondary cooling system under solidification end weight according to claim 1, which is characterized in that inner arc roll segment
In, the nozzle arranged vertically is divided into vertical cooling nozzles, has the vertical cooling nozzles in angle of inclination and sweeps squama nozzle by force, adjacent interior
Cooling nozzles between arc roll segment have at least two, and the spaced top between adjacent inner arc roll segment has and inclines
The vertical cooling nozzles of rake angle and sweep top of the squama nozzle between first roller and second roller by force.
4. using fan-shaped section secondary cooling system under solidification end weight according to claim 1, which is characterized in that outer arc roll segment
In, V-groove both ends that horizontally disposed transverse direction nozzle is formed between first roller and second roller, superposed are along roll segment
Axially opposing placement, and lateral nozzle, horizontal by angle α, 2 °≤α≤5 °, lateral jet expansion is downwards, is directed toward outer arc
The upper surface of roll segment.
5. using fan-shaped section secondary cooling system under solidification end weight according to claim 1, which is characterized in that outer arc roll segment
In, the nozzle arranged vertically is divided into vertical cooling nozzles, has the vertical cooling nozzles in angle of inclination and sweeps squama nozzle by force, adjacent outer
Cooling nozzles between arc roll segment have at least two, and the spaced lower section between adjacent outer arc roll segment has and inclines
The vertical cooling nozzles of rake angle and sweep lower section of the squama nozzle between first roller and second roller by force.
6. using fan-shaped section secondary cooling system under the solidification end weight according to claim 3 or 5, which is characterized in that have and incline
The vertical cooling nozzles of rake angle are two, and it is four to sweep squama nozzle by force, each there are the vertical cooling nozzles in angle of inclination to be located at two
A strong sweep forms one group between squama nozzle, and totally two groups, every group of three nozzles tilt outward, angle of inclination：17°≤β≤20°.
7. using fan-shaped section secondary cooling system under the solidification end weight according to claim 3 or 5 or 6, which is characterized in that first
The outer diameter of root roller is more than the outer diameter of second roller, has the vertical cooling nozzles in angle of inclination and sweeps squama nozzle respectively to first by force
Roller direction tilts, angle of inclination：4°≤γ≤7°.
8. under solidification end weight according to claim 1 use fan-shaped section secondary cooling system, which is characterized in that inner arc roll segment and
It the cooling nozzles of outer arc roll segment and strong sweep squama nozzle and is all made of gas-vapor mix nozzle.
9. using fan-shaped section secondary cooling system under solidification end weight according to claim 1, which is characterized in that outer arc roll segment is cold
But nozzle and squama nozzle spray amount is swept by force, is inner arc roll segment cooling nozzles and strong sweep squama nozzle spray amount 1~1.5 times.
10. using fan-shaped section secondary cooling system under solidification end weight according to claim 1, which is characterized in that inner arc roll segment
It is fixed with the lateral nozzle of outer arc roll segment horizontal direction arrangement and the strong water for sweeping squama nozzle arranged in a vertical direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720267.6A CN108543922B (en) | 2018-07-03 | 2018-07-03 | Sector section secondary cooling system for recompression of solidification tail end |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810720267.6A CN108543922B (en) | 2018-07-03 | 2018-07-03 | Sector section secondary cooling system for recompression of solidification tail end |
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| CN108543922B CN108543922B (en) | 2020-02-11 |
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| CN201810720267.6A Active CN108543922B (en) | 2018-07-03 | 2018-07-03 | Sector section secondary cooling system for recompression of solidification tail end |
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|---|---|---|---|---|
| CN110355339A (en) * | 2019-07-26 | 2019-10-22 | 武汉高智达连铸智能科技有限公司 | A kind of device and method removing the terminal oxidized iron sheet of fan-shaped section |
| CN111515359A (en) * | 2020-05-12 | 2020-08-11 | 河北普阳钢铁有限公司 | Device for reducing uneven cutting and unclean burrs of casting blank and using method thereof |
| CN112404382A (en) * | 2020-10-30 | 2021-02-26 | 山东钢铁集团日照有限公司 | Method for reducing bow defects of casting blank of ultra-wide slab continuous casting machine |
| CN115090848A (en) * | 2022-06-15 | 2022-09-23 | 河钢乐亭钢铁有限公司 | Process method for preventing casting blank from bending deformation in continuous casting process |
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