CN114769528A - Multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blank - Google Patents
Multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blank Download PDFInfo
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- CN114769528A CN114769528A CN202210268856.1A CN202210268856A CN114769528A CN 114769528 A CN114769528 A CN 114769528A CN 202210268856 A CN202210268856 A CN 202210268856A CN 114769528 A CN114769528 A CN 114769528A
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- flow
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- casting nozzle
- splitting
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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
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
- B22D11/0642—Nozzles
-
- 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
- B22D11/10—Supplying or treating molten metal
- B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
Abstract
The invention discloses a multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blanks, which comprises an upper cover plate and a lower cover plate, wherein the upper cover plate is connected with the lower cover plate to form a casting nozzle main body, a cavity is arranged in the casting nozzle main body, the surface of the cavity is coated with a coating for preventing aluminum liquid from adhering, the middle part of the lower end of the casting nozzle main body is provided with an aluminum liquid inlet communicated with the cavity, the cavity is internally provided with an upper row of flow-dividing blocks, a middle row of flow-dividing blocks and a lower row of flow-dividing blocks, the lower row of flow-dividing blocks comprise a plurality of rectangular block bodies, the middle row of flow-dividing blocks comprise a plurality of right-angled trapezoid block bodies, the upper row of flow-dividing blocks comprise a plurality of conical block bodies, the block bodies of each row of flow-dividing blocks are uniformly distributed at intervals and are symmetrical by taking the central line of the casting nozzle main body as an axis, and the aluminum liquid channels are formed by the intervals among the three rows of flow-dividing block bodies.
Description
Technical Field
The invention relates to a multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blanks.
Background
At present, with the rapid development of the aluminum processing industry, the requirements of high-end aluminum alloy products, namely new energy power lithium battery foils, high-end medical household single-double zero foils and the like, on cast-rolled plate blanks are gradually increased. The casting nozzle is a key component in the aluminum alloy rolling production, and the distribution state of a temperature field and a flow velocity field in a casting nozzle cavity can directly influence the quality of a cast-rolling plate blank. At present, a one-level flow casting nozzle is used in the aluminum alloy casting and rolling production, a uniform temperature field and a uniform flow velocity field are difficult to obtain, the abnormal conditions of the two flow fields can cause uneven crystal grains or part of the crystal grains to be abnormal and thick, and foreign matters at a cavity and a casting nozzle opening are retained and slag is easy to cause surface segregation, edge cracking, air passages and other layout defects. The casting blank with uniform crystal grains and excellent plate surface and plate shape quality can be obtained through the more uniform temperature field and flow velocity field, the production requirement of follow-up high-end products can be met, and the product quality is improved.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provides a multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blanks.
The utility model provides a multistage reposition of redundant personnel is cast and is chewed for production of high-end aluminium foil blank, including upper cover plate and lower apron, the upper cover plate links to each other with apron down and forms the cast main part of chewing and the cast inside die cavity that is equipped with of chewing, the die cavity surface scribbles the coating that prevents the aluminium liquid adhesion, the lower extreme middle part of the cast main part of chewing is equipped with the aluminium liquid import with the die cavity intercommunication, be equipped with in the die cavity, in, three rows of reposition of redundant personnel pieces down, it includes a plurality of rectangle blocks to arrange the reposition of redundant personnel piece down, well row reposition of redundant personnel piece includes a plurality of right trapezoid blocks, it includes a plurality of toper blocks to arrange the reposition of redundant personnel piece on the row, the block of every row reposition of redundant personnel piece all evenly interval distribution and use the central line of cast main part of chewing as axle bilateral symmetry, interval between the block of three rows of redundant personnel pieces forms aluminium liquid passageway.
As a further improvement, the casting nozzle main body and the shunting block are both products made of inorganic silicon oxide bonded high-performance ceramic fiber composite materials.
As a further improvement, the width of an aluminum liquid inlet in the middle of the lower end of the casting nozzle main body is 85 mm.
As a further improvement, the coating for preventing the adhesion of the aluminum liquid is boron nitride coating.
As a further improvement, the number of the rectangular block bodies in the lower row is 5, the length of the rectangular block bodies is 80-120 mm, the width of the rectangular block bodies is 30mm, and the transverse distance between the rectangular block bodies is 30-40 mm; the number of the right-angle trapezoid blocks in the middle row is 6, the upper bottoms of the right-angle trapezoid blocks are 55mm, the lower bottoms of the right-angle trapezoid blocks are 80mm, the height of the right-angle trapezoid blocks is 35mm, and the transverse distance between the right-angle trapezoid blocks is 55-65 mm; the quantity of the toper block of going up the row is 7, and the end length of toper block is 60mm, and the horizontal interval between the toper block is 60 ~ 95 mm.
As a further improvement, the longitudinal distance between the shunting blocks in each row is 30-40 mm.
As a further improvement, the gaps between the edges of the lower row of the shunting blocks and the cavity and between the edges of the middle row of the shunting blocks and the cavity are 40-55 mm, and the gaps between the edges of the upper row of the shunting blocks and the cavity are 50-60 mm.
Has the advantages that:
the casting nozzle main body and the shunting block are inorganic silicon oxide bonded high-performance ceramic fiber composite material products, the casting nozzle body and the shunting block are hard in surface, soft in inner part and high in refractoriness, have good thermal deformation and low thermal conductivity, and are good in high-temperature working stability, and a boron nitride coating coated on the surface of a cavity can effectively prevent the aluminum slagging condition and improve the chemical erosion resistance of aluminum liquid, so that the aluminum liquid can smoothly flow in the cavity. Multilayer runner intercommunicates each other, and the three-layer divides the stream block to be central line position symmetric distribution, and this kind of structure can increase the stability that aluminium liquid flows, makes the velocity of flow of aluminium liquid even, and the boron nitride coating that the die cavity surface scribbled can effectually prevent to be stained with the aluminium condition and improve the aluminium liquid anti-chemical erosion nature, helps aluminium liquid smooth flow in the intracavity to obtain more even casting and chew front end opening part aluminium liquid temperature. Compared with a common primary shunting casting nozzle, the obtained cast-rolling blank has more uniform crystal grains, more excellent plate surface and plate shape, and the subsequent high-end products such as new energy power lithium battery foils improve the surface density uniformity of the battery foils, the tolerance is accurately controlled to be within +/-4% of a target value, the number of pinholes is effectively reduced, the generation probability of pinholes of D grade and above is reduced, the pinhole density is controlled to be within 0.25, the occurrence frequency of surface defects such as bright lines and the like is reduced, and the surface quality of the aluminum foil is improved.
Drawings
FIG. 1 is a front cross-sectional view of a multi-stage split casting nozzle for high-end aluminum foil stock production;
FIG. 2 is a side cross-sectional view of a multi-stage split casting nozzle for high-end aluminum foil stock production;
FIG. 3 is a view of the external form of a multi-stage split casting nozzle for high-end aluminum foil stock production;
1. casting nozzle 2, flow distribution block 3, molten aluminum inlet 4, mold cavity 5 and molten aluminum channel.
Detailed Description
For the purpose of enhancing the understanding of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, which are only used for explaining the present invention and are not to be construed as limiting the scope of the present invention.
As shown in figures 1-2, the multi-stage flow-splitting casting nozzle for producing the high-end aluminum foil blank comprises a casting nozzle 1, a flow-splitting block 2, an aluminum liquid inlet 3, a cavity 4 and an aluminum liquid channel 5.
The utility model provides a multistage reposition of redundant personnel is cast and is chewed for production of high-end aluminium foil blank, including upper cover plate and lower apron, the upper cover plate links to each other with lower apron and forms the cast main part of chewing and the cast inside die cavity that is equipped with of chewing, the die cavity surface scribbles the coating that prevents the aluminium liquid adhesion, the lower extreme middle part of the cast main part is equipped with the aluminium liquid import with the die cavity intercommunication, be equipped with in the die cavity, in, three rows of reposition of redundant personnel piece down, it includes a plurality of rectangle blocks to arrange the reposition of redundant personnel piece down, well arrange the reposition of redundant personnel piece and include a plurality of right trapezoid blocks, it includes a plurality of toper blocks to arrange the reposition of redundant personnel piece on, the block of every row of reposition of redundant personnel piece all evenly interval distribution and use the central line of redundant personnel to chew the main part as axle bilateral symmetry, interval between the block of three rows of redundant personnel pieces forms aluminium liquid passageway.
Wherein, the casting nozzle main body and the shunting block are both products of inorganic silicon oxide bonded high-performance ceramic fiber composite materials.
Wherein, the width of an aluminum liquid inlet in the middle of the lower end of the casting nozzle main body is 85 mm.
Wherein, the coating for preventing the adhesion of the aluminum liquid is boron nitride coating, and the coating is prepared by mixing boron nitride and water 1: 2.5, preventing the aluminum from being stained and improving the chemical erosion resistance of the aluminum liquid.
The number of the rectangular block bodies in the lower row is 5, the length of the rectangular block bodies is 80-120 mm, the width of the rectangular block bodies is 30mm, and the transverse distance between the rectangular block bodies is 30-40 mm; the number of the right-angle trapezoid blocks in the middle row is 6, the upper bottoms of the right-angle trapezoid blocks are 55mm, the lower bottoms of the right-angle trapezoid blocks are 80mm, the height of the right-angle trapezoid blocks is 35mm, and the transverse distance between the right-angle trapezoid blocks is 55-65 mm; the quantity of the toper block of going up the row is 7, and the end length of toper block is 60mm, and the horizontal interval between the toper block is 60 ~ 95 mm.
Wherein, the longitudinal distance between each row of shunting blocks is 30-40 mm.
The gap between the edge of the lower-row shunting block and the cavity and the gap between the edge of the middle-row shunting block and the cavity are both 40-55 mm, and the gap between the edge of the upper-row shunting block and the cavity is 50-60 mm.
The casting nozzle body and the shunting block of the inorganic silicon oxide bonded high-performance ceramic fiber composite material product have hard surfaces, soft inside and high refractoriness, have good thermal deformation and very low thermal conductivity, and have good high-temperature working stability, and the boron nitride coating coated on the surface of the cavity can effectively prevent the aluminum from being stained with the slagging condition and improve the chemical erosion resistance of aluminum liquid, thereby being beneficial to the smooth flow of the aluminum liquid in the cavity. Multilayer runner intercommunicates each other, and the three-layer divides the stream block to be central line position symmetric distribution, and this kind of structure can increase the stability that aluminium liquid flows, makes the velocity of flow of aluminium liquid even, and the boron nitride coating that the die cavity surface scribbled can effectually prevent to be stained with the aluminium condition and improve the aluminium liquid anti-chemical erosion nature, helps aluminium liquid smooth flow in the intracavity to obtain more even casting and chew front end opening part aluminium liquid temperature. Compared with a common primary shunting casting nozzle, the obtained cast-rolled blank has more uniform crystal grains, more excellent plate surface and plate shape, and the subsequent high-end products such as new energy power lithium battery foils improve the surface density uniformity of the battery foils, the tolerance is accurately controlled to be within +/-4 percent of a target value, the number of pinholes is effectively reduced, the generation probability of pinholes of D grade and above is reduced, the pinhole density is controlled to be within 0.25, the occurrence frequency of surface defects such as bright lines and the like is reduced, and the surface quality of the aluminum foil is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a multistage reposition of redundant personnel cast nozzle for production of high-end aluminium foil blank, a serial communication port, including upper cover plate and lower apron, the upper cover plate links to each other with lower apron and forms the cast nozzle main part and the cast nozzle main part is inside to be equipped with the die cavity, the die cavity surface scribbles the coating that prevents the aluminium liquid adhesion, the lower extreme middle part of the cast nozzle main part is equipped with the aluminium liquid import with the die cavity intercommunication, be equipped with in the die cavity, in, three rows of reposition of redundant personnel piece down, it includes a plurality of rectangle blocks to arrange the reposition of redundant personnel piece down, well row reposition of redundant personnel piece includes a plurality of right trapezoid blocks, it includes a plurality of toper blocks to arrange the reposition of redundant personnel piece on, the block of every row reposition of redundant personnel piece all evenly interval distribution and use the central line of cast nozzle main part to be axle bilateral symmetry, interval between the block of three rows of redundant personnel pieces forms aluminium liquid passageway.
2. The multi-stage flow-splitting casting nozzle for producing the high-end aluminum foil blank according to claim 1, wherein the casting nozzle main body and the flow-splitting block are both made of inorganic silicon oxide bonded high-performance ceramic fiber composite materials.
3. The multi-stage flow-splitting casting nozzle for producing high-end aluminum foil blanks as claimed in claim 1, wherein the coating for preventing the aluminum liquid from adhering is a boron nitride coating.
4. The multi-stage flow-splitting casting nozzle for producing the high-end aluminum foil blanks as claimed in claim 1, wherein the width of an aluminum liquid inlet in the middle of the lower end of the casting nozzle main body is 85 mm.
5. The multi-stage flow-splitting casting nozzle for producing the high-end aluminum foil blank according to claim 1, wherein the number of the rectangular blocks in the lower row is 5, the length of the rectangular blocks is 80-120 mm, the width of the rectangular blocks is 30mm, and the transverse distance between the rectangular blocks is 30-40 mm; the number of the right-angle trapezoid blocks in the middle row is 6, the upper bottoms of the right-angle trapezoid blocks are 55mm, the lower bottoms of the right-angle trapezoid blocks are 80mm, the heights of the right-angle trapezoid blocks are 35mm, and the transverse distance between the right-angle trapezoid blocks is 55-65 mm; the quantity of the toper block of going up the row is 7, and the end length of toper block is 60mm, and the horizontal interval between the toper block is 60 ~ 95 mm.
6. The multi-stage flow-splitting casting nozzle for producing the high-end aluminum foil blank according to claim 5, wherein the longitudinal spacing between the rows of flow-splitting blocks is 30-40 mm.
7. The multi-stage flow-splitting casting nozzle for producing the high-end aluminum foil blanks as claimed in claim 5, wherein the gaps between the edges of the lower row of flow-splitting blocks and the die cavity and between the edges of the middle row of flow-splitting blocks and the die cavity are 40-55 mm, and the gaps between the edges of the upper row of flow-splitting blocks and the die cavity are 50-60 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210268856.1A CN114769528A (en) | 2022-03-18 | 2022-03-18 | Multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210268856.1A CN114769528A (en) | 2022-03-18 | 2022-03-18 | Multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blank |
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| Publication Number | Publication Date |
|---|---|
| CN114769528A true CN114769528A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210268856.1A Pending CN114769528A (en) | 2022-03-18 | 2022-03-18 | Multi-stage flow-dividing casting nozzle for producing high-end aluminum foil blank |
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Citations (11)
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| CN202845725U (en) * | 2012-08-31 | 2013-04-03 | 林州市林丰铝电有限责任公司 | Cast-rolling machine casting mouth split-flow device |
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| US20190151936A1 (en) * | 2017-11-17 | 2019-05-23 | Bruno Presezzi S.P.A. | Feeding/distribution device of a continuous casting machine |
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2022
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Patent Citations (11)
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| CN104148601A (en) * | 2014-08-26 | 2014-11-19 | 青海桥头铝电股份有限公司 | Super-thick aluminum alloy cast-rolled plate production method |
| US20190151936A1 (en) * | 2017-11-17 | 2019-05-23 | Bruno Presezzi S.P.A. | Feeding/distribution device of a continuous casting machine |
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