CN218798967U - Outer arc chamfering crystallizer for plate blank - Google Patents
Outer arc chamfering crystallizer for plate blank Download PDFInfo
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- CN218798967U CN218798967U CN202222981081.0U CN202222981081U CN218798967U CN 218798967 U CN218798967 U CN 218798967U CN 202222981081 U CN202222981081 U CN 202222981081U CN 218798967 U CN218798967 U CN 218798967U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to the technical field of continuous casting crystallizers for ferrous metallurgy, in particular to an outer arc chamfering crystallizer for plate blanks; the cooling device comprises a flat mouth-shaped working cavity consisting of two wide side walls and two narrow side walls, wherein a cooling water tank is preset on the outer peripheral side of the flat mouth-shaped working cavity, and the wide side walls at the top of the flat mouth-shaped working cavity are connected with the two narrow side walls in a right angle to form an inner arc right angle. In the application, the wide side wall at the top of the flat mouth-shaped working cavity is connected with the two narrow side walls in a right angle to form an inner arc right angle; the wide side wall at the bottom of the flat mouth-shaped working cavity is connected with the two narrow side walls in a chamfering way to form an inclined chamfer. The upper right angle and the lower radian of the flat mouth-shaped working cavity of the crystallizer are designed to be chamfered, so that the probability of corner cracks of a straightening section of a large plate blank with the thickness of 400mm is effectively avoided; and meanwhile, the probability that the steel billet cannot be sheared after being subjected to angle cracking and rolled into a steel plate is reduced.
Description
Technical Field
The utility model relates to a metallurgical continuous casting crystallizer technical field of steel especially relates to an outer arc chamfer crystallizer is used to slab.
Background
The mold is a continuous casting apparatus that receives molten steel poured from a tundish and solidifies it into a solid shell having a predetermined cross-sectional shape. The casting blank is the most critical component of a continuous casting machine, and the structure, the material and the performance parameters of the casting blank play a decisive role in the quality of the casting blank and the production capacity of the casting machine; slab crystallizers are devices for solidifying liquid metal into a desired shape and size, and include both fixed and combined types.
A slab continuous casting crystallizer disclosed according to a patent grant publication number CN201380275Y belongs to the field of metallurgical continuous casting equipment. The crystallizer comprises a rectangular working cavity consisting of two opposite wide-edge plates and two opposite narrow-edge plates, wherein cooling water tanks distributed in a roundabout manner are arranged on the outer surface of the rectangular working cavity, arc transition curved surfaces are arranged on adjacent edges of the narrow-edge plates and the wide-edge plates, and transition fillets formed by the arc transition curved surfaces are formed at four corners of the rectangular working cavity. The beneficial effects of the utility model are that, the emergence of bleed-out accident when can effectively avoid casting blank bight crackle and continuous casting, the continuous casting covering slag of still solving crystallizer bight department flows in not enough problem between copper and the blank shell, has overcome the perk skin defect on hot rolling board limit portion surface.
According to patent grant publication No. CN201108949, disclose a slab crystallizer that can be used to slab caster and slab electroslag furnace, including two wide water-cooling copper plates that form a relative wall of rectangular crystallization cavity and two narrow water-cooling copper plates that form another relative wall, narrow water-cooling copper plate terminal surface is pressed to wide water-cooling copper plate face, is equipped with the circular arc transition face of inscribing in narrow water-cooling copper plate face and wide water-cooling copper plate face in the edges and corners department of rectangular crystallization cavity. The circular arc transition surface is arranged at two ends of the narrow surface water-cooled copper plate facing to the plate surface on one side of the crystallization cavity, one side of the circular arc transition surface is tangent to the narrow surface water-cooled copper plate surface, and after the narrow surface water-cooled copper plate and the wide surface water-cooled copper plate are combined, the other side of the circular arc transition surface is tangent to the wide surface water-cooled copper plate surface. The structure changes the original 45-degree inclined plane into an arc transition surface internally tangent to the water-cooling copper plate, so that the chilling condition of the corner of the slab is improved, the crack occurrence rate of the corner of the slab is reduced, and the yield is improved.
At present, a right-angle crystallizer or a chamfer crystallizer is generally adopted. The corner of the right-angle crystallizer is fast in heat dissipation, and corner cracks are easily caused by stress concentration due to low temperature. Stress concentration of the chamfering crystallizer is small, but the sectional area can be relatively reduced, so that the chamfering crystallizer has certain influence on yield particularly when large slabs are produced, and the product quality is not easy to guarantee by trimming after cracks appear on the chamfering part.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a slab is with outer arc chamfer crystallizer solves the problem that conventional slab chamfer design is not enough in the crystallizer.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the utility model provides an outer arc chamfering crystallizer for a plate blank, which comprises a flat mouth-shaped working cavity consisting of two wide side walls and two narrow side walls, wherein a cooling water tank is preset on the outer peripheral side of the flat mouth-shaped working cavity;
the wide side wall at the top of the flat mouth-shaped working cavity is connected with the two narrow side walls in a right angle to form an inner arc right angle;
the wide side wall at the bottom of the flat-mouth-shaped working cavity is connected with the two narrow side walls in a chamfering mode to form an inclined chamfer.
Furthermore, a broadside water tank is arranged outside the broadside side wall.
Still further, a narrow-side water tank is arranged outside the narrow-side wall.
And furthermore, the wide side wall at the top of the flat-mouth-shaped working cavity is connected with the two narrow side walls in a chamfering manner to form a curved surface chamfer.
And further, the connecting part of the wide side wall and the narrow side wall is in smooth transition.
Compared with the prior art, the utility model discloses a beneficial technological effect: in the application, the wide side wall at the top of the flat mouth-shaped working cavity is connected with the two narrow side walls in a right angle to form an inner arc right angle; the wide side wall at the bottom of the flat mouth-shaped working cavity is connected with the two narrow side walls in a chamfering way to form an inclined chamfer. The upper right angle and the lower radian of the flat mouth-shaped working cavity of the crystallizer are designed to be chamfered, so that the probability of corner cracks of a straightening section of a large plate blank with the thickness of 400mm is effectively avoided; and meanwhile, the probability that the steel billet cannot be sheared after being angle-cracked and rolled into a steel plate is reduced.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a schematic structural view of an outer arc chamfering crystallizer for slabs according to the present invention;
fig. 2 is another schematic structural diagram of the external arc chamfering crystallizer for slabs of the present invention.
Description of reference numerals: 1. a broadside sidewall; 2. a wide-edge water tank; 3. a narrow-sided sidewall; 4. a narrow-sided water tank; 5. an inner arc right angle; 6. inclining and chamfering; 7. and (6) chamfering the curved surface.
Detailed Description
The embodiment discloses an outer arc chamfering crystallizer for a plate blank, which comprises a flat mouth-shaped working cavity consisting of two wide side walls 1 and two narrow side walls 3, wherein a cooling water tank is preset on the outer peripheral side of the flat mouth-shaped working cavity;
specifically, a wide-side water tank 2 is arranged outside the wide-side wall 1, and a narrow-side water tank 4 is arranged outside the narrow-side wall 3; the cooling and heat exchanging device is used for cooling and heat exchanging.
In the embodiment, the wide side wall 1 at the top of the flat mouth-shaped working cavity is connected with the two narrow side walls 3 in a right angle to form an inner arc right angle 5;
the wide side wall 1 at the bottom of the flat mouth-shaped working cavity is connected with the two narrow side walls 3 in a chamfer way to form an inclined chamfer 6.
The upper right angle and the lower radian of the flat mouth-shaped working cavity of the crystallizer are designed to be chamfered, so that the probability of corner cracks of a straightening section of a large plate blank with the thickness of 400mm is effectively avoided; and meanwhile, the probability that the steel billet cannot be sheared after being subjected to angle cracking and rolled into a steel plate is reduced.
In the embodiment, the wide-side wall 1 at the top of the flat-mouth-shaped working cavity is connected with the two narrow-side walls 3 in a chamfer way, and a curved surface chamfer 7 can also be formed; in this embodiment, the connection between the wide side wall 1 and the narrow side wall 3 is smoothly transited.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above embodiments are only for describing the preferred mode of the invention, and are not intended to limit the scope of the invention, and various modifications and improvements made to the technical solution of the invention by those skilled in the art without departing from the spirit of the invention should fall within the protection scope defined by the claims of the invention.
Claims (5)
1. The utility model provides an outer arc chamfer crystallizer for slab, its includes the flat mouthful of shape working chamber that two broadside sidewalls and two broadside sidewalls constitute, wherein the periphery side of flat mouthful of shape working chamber has preset cooling trough, its characterized in that:
the wide side wall at the top of the flat mouth-shaped working cavity is connected with the two narrow side walls in a right angle to form an inner arc right angle;
the wide side wall at the bottom of the flat mouth-shaped working cavity is connected with the two narrow side walls in a chamfering way to form an inclined chamfer.
2. The external arc chamfering crystallizer for slabs according to claim 1, characterized in that: and a broadside water tank is arranged outside the broadside side wall.
3. The external arc chamfering crystallizer for slabs according to claim 1, characterized in that: and a narrow-edge water tank is arranged outside the narrow-edge side wall.
4. The external arc chamfering crystallizer for slabs according to claim 1, characterized in that: the wide side wall at the top of the flat-mouth-shaped working cavity is connected with the two narrow side walls in a chamfering mode to form a curved surface chamfer.
5. The external arc chamfering crystallizer for slabs according to claim 4, wherein: and the connecting part of the wide side wall and the narrow side wall is in smooth transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222981081.0U CN218798967U (en) | 2022-11-09 | 2022-11-09 | Outer arc chamfering crystallizer for plate blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222981081.0U CN218798967U (en) | 2022-11-09 | 2022-11-09 | Outer arc chamfering crystallizer for plate blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218798967U true CN218798967U (en) | 2023-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222981081.0U Active CN218798967U (en) | 2022-11-09 | 2022-11-09 | Outer arc chamfering crystallizer for plate blank |
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| CN (1) | CN218798967U (en) |
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2022
- 2022-11-09 CN CN202222981081.0U patent/CN218798967U/en active Active
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