CN219648651U - Crystallizer cooling structure for continuous casting - Google Patents
Crystallizer cooling structure for continuous casting Download PDFInfo
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- CN219648651U CN219648651U CN202320111933.2U CN202320111933U CN219648651U CN 219648651 U CN219648651 U CN 219648651U CN 202320111933 U CN202320111933 U CN 202320111933U CN 219648651 U CN219648651 U CN 219648651U
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- 238000001816 cooling Methods 0.000 title claims abstract description 72
- 238000009749 continuous casting Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 156
- 239000000498 cooling water Substances 0.000 claims abstract description 85
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 48
- 239000010949 copper Substances 0.000 claims abstract description 48
- 238000005192 partition Methods 0.000 claims description 31
- 230000001105 regulatory effect Effects 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 abstract description 7
- 239000010959 steel Substances 0.000 abstract description 7
- 238000012546 transfer Methods 0.000 abstract description 7
- 238000003723 Smelting Methods 0.000 abstract description 3
- 238000005266 casting Methods 0.000 description 12
- 230000007547 defect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 239000000843 powder Substances 0.000 description 6
- 239000002436 steel type Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 206010017472 Fumbling Diseases 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910000954 Medium-carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000000112 cooling gas Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Continuous Casting (AREA)
Abstract
The utility model belongs to a cooling structure of a crystallizer for continuous casting, which belongs to the technical field of steel smelting. The utility model discloses a crystallizer copper pipe, including outer wall baffle (3) and crystallizer copper pipe (1), be copper pipe outer wall water gap (2) around crystallizer copper pipe (1) outer wall a week between, set up opening (7) on outer wall baffle (3), set up division board (8) of connecting crystallizer copper pipe (1) in the middle of opening (7), division board (8) separate opening (7) into cooling water inlet channel (4) and cooling water outlet channel (5), copper pipe outer wall water gap (2) position is annular basin (9), set up a plurality of basin cuts off (6) in annular basin (9), every cooling water inlet channel (4) outside installs the flow control valve respectively. The cooling structure of the crystallizer for continuous casting can realize the purpose of precisely cooling and controlling each part of the longitudinal direction of the crystallizer, improve the heat transfer uniformity of the crystallizer and further improve the quality of continuous casting billets.
Description
Technical Field
The utility model belongs to the technical field of steel smelting, and particularly relates to a cooling structure of a crystallizer for continuous casting.
Background
Continuous casting is a production mode which is economical and efficient in the smelting process of steel materials. The mould is a critical component in the continuous casting plant and is the heart of the continuous casting machine. The crystallizer plays a vital role in improving continuous casting productivity, maintaining normal production in the continuous casting process and ensuring casting blank quality. Whether the design of the cooling channel of the crystallizer is reasonable or not determines whether the cooling uniformity of the crystallizer is a key link, and the cooling channel is generally a cooling water channel such as a circular seam (water jacket), a water tank (or a small hole) and the like, which is used for casting the crystallizer at present, and the water flow direction is from bottom to top, namely, the water enters from the lower opening and flows out from the upper part. The cooling channel is designed with a defect that the cooling rate of different parts along the direction of drawing the blank cannot be adjusted, so that the up-down cooling speed of the casting blank in the crystallizer is adapted to the cooling shrinkage of the casting blank, and the overall performance and the surface quality of the product are affected. The steel grade produced by one casting machine is a series of steel grades from low carbon to medium carbon steel, even high carbon steel, and the like, the solidification shrinkage coefficient of each steel grade is large in difference, and the condition that the solidification shrinkage is not suitable for the taper of the copper pipe can occur if the taper of the copper pipe is designed to be one type. At present, the main flow direction optimizes the heat transfer performance of the casting powder by adjusting the physicochemical index of the casting powder, thereby controlling the cooling speed of a crystallizer to improve the heat transfer and improving the quality of casting blanks. Because the adjustment of the physicochemical indexes of the casting powder needs long-time fumbling and experiments to find out the proper casting powder, even so, the use performance of the casting powder often fluctuates greatly due to the fluctuation of the raw materials and the production process parameters of the casting powder, and the problem of concentrated batch quality of continuous casting billets is caused.
Chinese patent CN 215845581U, "a ferrous metallurgy crystallizer cooler," divides the cooling channel into an upper chamber and a lower chamber, while the upper chamber serves as a return water channel, the lower chamber serves as a water inlet channel, the lower chamber is divided into a plurality of return chambers, and each water inlet channel is collected into a return water main pipe by a total water inlet pipe distribution and return water channel. The method forms dead zones in each reflux cavity, influences the cooling effect and even has potential safety hazards. Chinese patent CN 210139040U, "a cooling structure of continuous casting crystallizer", sets up the cooling jacket in the cooling channel outside the crystallizer, is provided with mutually supporting helicla flute on the inner wall of interior sleeve body and the outer wall of outer sleeve body and forms the helicla flute, lets in cooling water and gas and realizes the purpose that improves the cooling uniformity. However, the method has complex structure and difficult manufacture, and can not realize the purpose of precisely controlling the cooling of different longitudinal parts. However, the prior art does not relate to the technical problems and solutions to be solved by the present utility model.
Disclosure of Invention
The technical problems to be solved by the utility model are as follows: aiming at the defects of the prior art, the cooling structure of the crystallizer for continuous casting is simple in structure, can realize the purpose of precisely cooling and controlling each part of the longitudinal direction of the crystallizer, improves the heat transfer uniformity of the crystallizer, and further improves the quality of continuous casting billets.
The technical scheme adopted by the utility model is as follows:
the utility model relates to a crystallizer cooling structure for continuous casting, wherein an outer wall baffle is arranged on the outer ring of a crystallizer copper pipe, a copper pipe outer wall water gap surrounding the periphery of the outer wall of the crystallizer copper pipe is arranged between the outer wall baffle and the crystallizer copper pipe, an opening part is arranged on the outer wall baffle, a partition plate connected with the crystallizer copper pipe is arranged in the middle of the opening part, the partition plate divides the opening part into a cooling water inlet channel and a cooling water outlet channel, the water gap part of the copper pipe outer wall is an annular water tank, a plurality of water tank partitions are arranged in the annular water tank, each water tank partition is arranged along the periphery of the annular water tank, and flow regulating valves are respectively arranged outside each cooling water inlet channel.
The cooling water inlet channel is communicated with the water inlet of the water gap on the outer wall of the copper pipe, and the cooling water outlet channel 5 is communicated with the water outlet of the water gap on the outer wall of the copper pipe.
The plurality of trough partitions divide the annular trough into a plurality of annular trough segments.
An opening is respectively arranged on the outer wall baffle plate of each annular water tank section.
A separation plate connected with the crystallizer copper pipe inside the annular water tank section is arranged in the middle of each opening part, and each separation plate separates the corresponding opening part into a cooling water inlet channel and a cooling water outlet channel.
Each cooling water inlet channel is communicated with a water supply pipeline through a water inlet pipeline, and each cooling water outlet channel is communicated with a water supply tank through a water return pipeline.
Each flow regulating valve is respectively connected with the control part.
The depth of the annular water tank is 4-mm-10 mm.
The width of the annular water tank is 100 mm-150 mm.
The partition width of the water tank partition of the adjacent annular water tank sections of the annular water tank is 10 mm-20 mm.
By adopting the technical scheme of the utility model, the working principle and the beneficial effects are as follows:
when the structure is arranged, the outer wall baffle and the crystallizer copper pipe are provided with the copper pipe outer wall water gap to form the annular water tank, the annular water tank surrounding the crystallizer copper pipe is divided into mutually isolated multi-section structures by the arrangement of a plurality of water tank partitions, each section is respectively an annular water tank section, each annular water tank section is respectively communicated with a cooling water inlet channel and a cooling water outlet channel, and the outside of each cooling water inlet channel is respectively provided with a flow regulating valve. When each annular water tank section is cooled, the cooling water flow enters the corresponding annular water tank section of the crystallizer along the cooling water inlet channel, and then flows to the cooling water outlet channel from the crystallizer along the anticlockwise direction, so that the circulating cooling is realized, and the cooling water flows clockwise. Therefore, each annular water tank section forms an independent cooling cavity and a cooling structure, so that independent cooling is realized, the flow regulating valve of each annular water tank section can be independently regulated and controlled, the water quantity of cooling water entering each annular water tank section is realized, sectional cooling of longitudinal parts of the crystallizer is realized, and accurate regulation and control of cooling intensity are realized. Therefore, the cooling intensity of each longitudinal part of the crystallizer can be accurately and controllably controlled, the occurrence rate of surface defects of the continuous casting billet is greatly reduced, and the quality of the continuous casting billet is improved. The using method of the device is convenient and simple to operate and easy to install and assemble. The cooling structure of the crystallizer for continuous casting can realize the purpose of precisely cooling and controlling each part of the longitudinal direction of the crystallizer, improve the heat transfer uniformity of the crystallizer and further improve the quality of continuous casting billets.
Drawings
The following is a brief description of what is expressed in the drawings of this specification and the references in the drawings:
FIG. 1 is a schematic cross-sectional view of a cooling structure of a mold for continuous casting according to the present utility model;
FIG. 2 is a schematic view showing a longitudinal sectional structure of a cooling structure of a mold for continuous casting according to the present utility model;
the reference numerals in the figures are respectively: 1. crystallizer copper pipe; 2. water gaps on the outer wall of the copper pipe; 3. an outer wall baffle; 4. a cooling water inlet channel; 5. a cooling water outlet channel; 6. a water tank partition; 7. an opening portion; 8. a partition plate; 9. an annular water tank; 10. an annular water trough section; A. the depth of the water tank; B. the width of the water tank; C. partition width.
Detailed Description
The following describes the shape, structure, mutual position and connection relation between parts, action of parts and working principle of the specific embodiment of the present utility model by describing examples in further detail:
as shown in the accompanying drawings 1 and 2, the utility model relates to a crystallizer cooling structure for continuous casting, an outer ring of a crystallizer copper pipe 1 is provided with an outer wall baffle 3, a copper pipe outer wall water gap 2 surrounding the periphery of the outer wall of the crystallizer copper pipe 1 is formed between the outer wall baffle 3 and the crystallizer copper pipe 1, an opening 7 is arranged on the outer wall baffle 3, a division plate 8 connected with the crystallizer copper pipe 1 is arranged in the middle of the opening 7, the division plate 8 divides the opening 7 into a cooling water inlet channel 4 and a cooling water outlet channel 5, the part of the copper pipe outer wall water gap 2 is an annular water channel 9, a plurality of water channel partitions 6 are arranged in the annular water channel 9, each water channel partition 6 is arranged along the periphery of the annular water channel 9, and a flow regulating valve is respectively arranged outside each cooling water inlet channel 4. The structure provides an improved technical scheme aiming at the defects in the prior art. When the crystallizer is structurally arranged, a hollow structure is arranged between the outer wall baffle 3 and the copper tube 1 of the crystallizer, an annular water tank 9 is formed for the water gap 2 of the outer wall of the copper tube, and the plurality of water tank partitions 6 divide the annular water tank 9 surrounding the copper tube 1 of the crystallizer into mutually isolated multi-section structures, each section is respectively an annular water tank section 10, each annular water tank section 10 is respectively provided with an opening part, a cooling water inlet channel 4 and a cooling water outlet channel 5 are formed, and flow regulating valves are respectively arranged outside each cooling water inlet channel 4. When each annular water tank section is cooled, the cooling water flow enters the corresponding annular water tank section of the crystallizer along the cooling water inlet channel 4 in fig. 1, and then flows to the cooling water outlet channel 5 from the crystallizer along the anticlockwise direction, so that the circulating cooling is realized, and the cooling water flows clockwise. Therefore, each annular water tank section forms an independent cooling cavity and a cooling structure, so that independent cooling is realized, the flow regulating valve of each annular water tank section can be independently regulated and controlled, the water quantity of cooling water entering each annular water tank section is realized, sectional cooling of longitudinal parts of the crystallizer is realized, and accurate regulation and control of cooling intensity are realized. Therefore, the cooling intensity of each longitudinal part of the crystallizer can be accurately and controllably controlled, the occurrence rate of surface defects of the continuous casting billet is greatly reduced, and the quality of the continuous casting billet is improved. The using method of the device is convenient and simple to operate and easy to install and assemble. The cooling structure of the crystallizer for continuous casting has a simple structure, can realize the purpose of precisely cooling and controlling each part of the longitudinal direction of the crystallizer, improves the heat transfer uniformity of the crystallizer, and further improves the quality of continuous casting billets.
The cooling water inlet channel 4 is communicated with the water inlet of the water gap 2 on the outer wall of the copper pipe, and the cooling water outlet channel 5 is communicated with the water outlet of the water gap 2 on the outer wall of the copper pipe. With the above structure, the cooling water inlet channel 4 is used for water inlet, and the cooling water outlet channel 5 is used for water outlet. In this way, each annular water tank section 10 realizes the flowing cooling of cooling water respectively, and the water inflow in each annular water tank section 10 can be regulated through the respective flow regulating valve, so that differential cooling is realized, and the requirement is met.
The plurality of trough partitions 6 divide the annular trough 9 into a plurality of annular trough segments 10. An opening 7 is respectively arranged on the outer wall baffle 3 of each annular water tank section 10. According to the structure, the adjacent annular water tank sections 10 are disconnected through the corresponding water tank partitions 6, so that each annular water tank section 10 forms a cooling cavity with a separate hollow structure, and each annular water tank section 10 realizes cooling water flow through the respective cooling water inlet channel 4 and the cooling water outlet channel 5. And the flow regulating valve of each cooling water inlet channel 4 realizes the independent cooling water flow regulation.
A partition plate 8 connected to the copper tube 1 of the crystallizer inside the annular water tank section 10 is provided in the middle of each opening 7, and each partition plate 8 partitions the corresponding opening 7 into a cooling water inlet channel 4 and a cooling water outlet channel 5. The structure is characterized in that the opening part is of a pipeline structure, the opening part and the partition plate are used for respectively forming a water inlet and a water outlet, the cooling water inlet channel 4 is communicated with the water inlet for cooling water to enter, and the cooling water outlet channel 5 is communicated with the water outlet for cooling water to flow out.
Each cooling water inlet channel 4 is respectively communicated with a water supply pipeline through a water inlet pipeline, and each cooling water outlet channel 5 is respectively communicated with a water supply tank through a water return pipeline. With the above structure, the water supply pipeline is communicated with the water supply tank, and the water supply pipeline is communicated with the water pump for supplying water from the water supply tank. And cooling water cooled by the crystallizer flows back to the water supply tank through the water return pipeline, and the cooling water is recycled.
Each flow regulating valve is respectively connected with the control part. The flow regulating valve is an electronic valve. The control means can control the opening degree and the opening/closing state of each flow rate adjustment valve.
The water tank depth A of the annular water tank 9 is 4 mm-10 mm. The water tank width B of the annular water tank 9 is 100 mm-150 mm. The partition width C of the water tank partition 6 of the adjacent annular water tank sections 10 of the annular water tank 9 is 10 mm-20 mm.
According to the crystallizer cooling structure for continuous casting, the annular water tanks of the crystallizer form a plurality of annular water tank sections 10, namely, a cooling channel of the crystallizer is divided into a plurality of loops (4-8 loops are generally suitable) from an upper opening to a lower opening of the crystallizer, each loop is required to be independently provided with a flow regulating valve, the flow regulating valve is connected with a computer through a PLC (control part), automatic regulation and accurate control of flow are realized, and water flow is convenient to regulate according to steel types and cooling requirements. For example: when producing sub-peritectic steel, because the linear shrinkage is the biggest when the steel types are solidified, the shrinkage coefficient is generally 1.38-2% when the common carbon steel is solidified, and the steel types can reach 4%, which can lead to the formation of larger gaps between primary green shells of the crystallizer wall, deeper vibration marks, pits, cracks and other defects, the occurrence of the defects can be reduced greatly by weak cooling of the upper part of the crystallizer, and at the moment, the problems in the prior art can be solved by reducing the cooling water flow of 1-4 loops of the upper part of the crystallizer by 5-20%. Meanwhile, for the same crystallizer, the depth and the width of water tanks on four sides of the crystallizer are required to be kept the same, so that uniform cooling of the four sides can be ensured, the distance between the water tanks and the top of the crystallizer is 10-15 mm, the distance between the water tanks and the bottom of the crystallizer is 10-15 mm, and the interval (water tank partition) between two adjacent water tanks is 10-20 mm; in one of the corners of the mold, as shown in fig. 1, a cooling water inlet passage 4 and a cooling water outlet passage 5 are formed so as to connect a water inlet pipe and a water return pipe. During the use, the flow of cooling water of each loop is set according to the steel type. To ensure safe use, the individual circuit cooling water flows should not be less than 6m/s (cooling water flow rate calculation method: cooling water flow rate=cooling water flow rate/sink width/sink depth). And (3) assembling a crystallizer: before the crystallizer is installed, checking that the quality of the copper tube of the crystallizer meets the requirement, and fixing the water gap outer baffle plate on the outer wall of the copper tube of the crystallizer in a mode of installing the water gap outer baffle plate in a mode shown in figure 2. Crystallizer tightness inspection: and testing the pressure of the loops one by one, checking the tightness of the water gap, and ensuring that each loop is well sealed, and water leakage and water stringing are avoided. And (3) online use of a crystallizer: and setting the flow rate of cooling water of each loop according to the steel type. To ensure safe use, the individual circuit cooling water flows should not be less than 6m/s (cooling water flow rate calculation method: cooling water flow rate=cooling water flow rate/sink width/sink depth).
When the structure is arranged, the outer wall baffle and the crystallizer copper pipe are provided with the copper pipe outer wall water gap to form the annular water tank, the annular water tank surrounding the crystallizer copper pipe is divided into mutually isolated multi-section structures by the arrangement of a plurality of water tank partitions, each section is respectively an annular water tank section, each annular water tank section is respectively communicated with a cooling water inlet channel and a cooling water outlet channel, and the outside of each cooling water inlet channel is respectively provided with a flow regulating valve. When each annular water tank section is cooled, the cooling water flow enters the corresponding annular water tank section of the crystallizer along the cooling water inlet channel, and then flows to the cooling water outlet channel from the crystallizer along the anticlockwise direction, so that the circulating cooling is realized, and the cooling water flows clockwise. Therefore, each annular water tank section forms an independent cooling cavity and a cooling structure, so that independent cooling is realized, the flow regulating valve of each annular water tank section can be independently regulated and controlled, the water quantity of cooling water entering each annular water tank section is realized, sectional cooling of longitudinal parts of the crystallizer is realized, and accurate regulation and control of cooling intensity are realized. Therefore, the cooling intensity of each longitudinal part of the crystallizer can be accurately and controllably controlled, the occurrence rate of surface defects of the continuous casting billet is greatly reduced, and the quality of the continuous casting billet is improved. The using method of the device is convenient and simple to operate and easy to install and assemble. The cooling structure of the crystallizer for continuous casting can realize the purpose of precisely cooling and controlling each part of the longitudinal direction of the crystallizer, improve the heat transfer uniformity of the crystallizer and further improve the quality of continuous casting billets.
While the utility model has been described above with reference to the accompanying drawings, it will be apparent that the specific implementation of the utility model is not limited by the foregoing, but rather is within the scope of the utility model as long as various modifications are made by the method concept and technical scheme of the utility model, or the concept and technical scheme of the utility model are directly applied to other occasions without modification.
Claims (10)
1. A crystallizer cooling structure for continuous casting is characterized in that: the outer ring of the crystallizer copper pipe (1) is provided with an outer wall baffle (3), copper pipe outer wall water gaps (2) surrounding the periphery of the outer wall of the crystallizer copper pipe (1) are arranged between the outer wall baffle (3) and the crystallizer copper pipe (1), an opening (7) is arranged on the outer wall baffle (3), a partition plate (8) connected with the crystallizer copper pipe (1) is arranged in the middle of the opening (7), the partition plate (8) divides the opening (7) into a cooling water inlet channel (4) and a cooling water outlet channel (5), the copper pipe outer wall water gaps (2) are provided with annular water grooves (9), a plurality of water groove partitions (6) are arranged in the annular water grooves (9), each water groove partition (6) is arranged along the periphery of the annular water groove (9), and flow regulating valves are respectively arranged outside each cooling water inlet channel (4).
2. The cooling structure of a mold for continuous casting according to claim 1, characterized in that: the cooling water inlet channel (4) is communicated with the water inlet of the water gap (2) on the outer wall of the copper pipe, and the cooling water outlet channel (5) is communicated with the water outlet of the water gap (2) on the outer wall of the copper pipe.
3. The cooling structure of a mold for continuous casting according to claim 1 or 2, characterized in that: the annular water tank (9) is divided into a plurality of annular water tank sections (10) by a plurality of water tank partitions (6).
4. The cooling structure of a mold for continuous casting according to claim 3, wherein: an opening (7) is respectively arranged on the outer wall baffle (3) of each annular water tank section (10).
5. The cooling structure of a mold for continuous casting according to claim 4, wherein: a division plate (8) connected with the crystallizer copper pipe (1) in the annular water tank section (10) is arranged in the middle of each opening (7), and each division plate (8) divides the corresponding opening (7) into a cooling water inlet channel (4) and a cooling water outlet channel (5).
6. The cooling structure of a mold for continuous casting according to claim 5, wherein: each cooling water inlet channel (4) is communicated with a water supply pipeline through a water inlet pipeline, and each cooling water outlet channel (5) is communicated with a water supply tank through a water return pipeline.
7. The cooling structure of a mold for continuous casting according to claim 6, wherein: each flow regulating valve is respectively connected with the control part.
8. The cooling structure of a mold for continuous casting according to claim 1 or 2, characterized in that: the water tank depth (A) of the annular water tank (9) is 4 mm-10 mm.
9. The cooling structure of a mold for continuous casting according to claim 8, wherein: the water tank width (B) of the annular water tank (9) is 100 mm-150 mm.
10. The mold cooling structure for continuous casting according to claim 9, characterized in that: the partition width (C) of the water tank partition (6) of the adjacent annular water tank sections (10) of the annular water tank (9) is 10 mm-20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320111933.2U CN219648651U (en) | 2023-01-13 | 2023-01-13 | Crystallizer cooling structure for continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320111933.2U CN219648651U (en) | 2023-01-13 | 2023-01-13 | Crystallizer cooling structure for continuous casting |
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| Publication Number | Publication Date |
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| CN219648651U true CN219648651U (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320111933.2U Active CN219648651U (en) | 2023-01-13 | 2023-01-13 | Crystallizer cooling structure for continuous casting |
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| Country | Link |
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| CN (1) | CN219648651U (en) |
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2023
- 2023-01-13 CN CN202320111933.2U patent/CN219648651U/en active Active
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