Core fixing mold for horizontal continuous casting process
By using high-temperature composite gaskets and limiting structures of silicon nitride and silicon carbide in fixed core molds, the problems of poor bonding of steel wire and solution and easy mold loss are solved, and higher production efficiency and longer mold life are achieved.
Patent Information
- Application Number
- CN202422312592.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the existing horizontal continuous casting process, defects in the fixed core mold design lead to poor bonding of steel wire and solution in the dissolution furnace, and graphite molds are easily dissipated and need to be replaced frequently, which affects production efficiency.
The outer high-strength round-type hollow gasket and the inner high-strength round-type hollow gasket made of high-temperature composite silicon nitride and silicon carbide combine with the large and small liquid inlet hole design to enhance the bonding of the steel wire and metal solution, and the rapid positioning of the mold assembly is achieved through the limiting groove and limiting strip to prevent deflection.
It improves the bonding of steel wire and metal solution, extends the service life of fixed core molds, reduces the frequency of mold replacement, and reduces production costs.
Smart Images
Figure CN223145945U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of die equipment, in particular to a centering die for horizontal continuous casting process. Background Art
[0002] Since the grounding device is buried in the soil, it is extremely easy to break and affect the conductivity due to the corrosion of the soil, which will affect the grounding effect. Therefore, at present, alloy materials such as copper-clad steel and zinc-clad steel are used as the mainstream grounding products in the market, and the corrosion resistance and strong conductivity of their coatings are used to ensure the stability of grounding.
[0003] Copper-clad steel and zinc-clad steel alloy materials currently use the horizontal continuous casting process as the mainstream process. The so-called horizontal continuous casting is to pass the steel wire through a melting furnace, and heat and melt the coating metals such as copper blocks or zinc ingots in the melting furnace to make them in a solution state. When the steel wire passes through the melting furnace, it passes through the die after being adjusted by the centering die, and combines with the molten metal in the furnace in the centering die to form alloy materials with copper or zinc on the surface and steel inside, namely copper-clad steel and zinc-clad steel. Therefore, the manufacture and design of the centering die belong to the key points of the continuous casting process.
[0004] In actual production, due to the design technical defects of the centering die, it usually leads to poor bonding between the steel wire and the solution in the melting furnace. During the production process, graphite is used as the centering die and is easy to wear. The pulling of the steel wire will continuously damage the graphite. Therefore, the die needs to be frequently replaced, which affects production and other situations, making the production of alloy materials by the continuous casting process face many problems. Summary of the Utility Model
[0005] The purpose of the utility model is to provide a centering die for horizontal continuous casting process to solve the existing problems.
[0006] To achieve the above purpose, the utility model provides the following technical solution: A centering die for horizontal continuous casting process, comprising: a centering component, a graphite die tube component is arranged on the outer side of one end of the centering component, an outlet die component is inserted at one end of the graphite die tube component, the centering component includes an outer high-strength conical hollow gasket, a graphite conical hollow gasket and an inner high-strength conical hollow gasket, the graphite conical hollow gasket is arranged between the outer high-strength conical hollow gasket and the inner high-strength conical hollow gasket, the graphite die tube component includes a cylindrical graphite die tube body, a centering inclined groove is opened at one end inside the cylindrical graphite die tube body, a hollow through hole is opened in the middle inside the cylindrical graphite die tube body, an outlet die slot is opened at the other end inside the cylindrical graphite die tube body, and a liquid inlet hole is opened on the middle side wall of the cylindrical graphite die tube body.
[0007] As a further solution of the utility model: the outer side of the outer high-strength truncated cone hollow gasket is provided with an outer gasket limiting pattern, the outer side of the graphite truncated cone hollow gasket is provided with a middle gasket limiting pattern, the outer side of the inner high-strength truncated cone hollow gasket is provided with an inner gasket limiting pattern, the inner wall of the fixed core inclined surface groove is provided with an inclined surface groove limiting pattern, and the outer gasket limiting pattern, the middle gasket limiting pattern and the inner gasket limiting pattern are adapted to the specifications of the inclined surface groove limiting pattern.
[0008] As a further solution of the utility model: the outlet mold assembly includes an intermediate tube of the crystallizer outlet mold, one end of the intermediate tube of the crystallizer outlet mold is fixedly connected to a plug-in tube, a limiting groove is provided on the side of the plug-in tube, a limiting strip is fixedly connected to the inner side wall of the outlet mold slot, the other end of the intermediate tube of the crystallizer outlet mold is fixedly connected to an externally threaded connecting tube, an outlet through hole is provided inside the plug-in tube, and the plug-in tube is adapted to be plugged into the inside of the outlet mold slot.
[0009] As a further solution of the utility model: the outer high-strength truncated cone hollow gasket is provided with an outer gasket inner hole, the graphite truncated cone hollow gasket is provided with a middle gasket inner hole, the inner high-strength truncated cone hollow gasket is provided with an inner gasket inner hole, the specifications and positions of the outer gasket inner hole, the middle gasket inner hole and the inner gasket inner hole are adapted, and the inner surface of the middle gasket inner hole is coated with a graphite coating.
[0010] As a further solution of the utility model: the combined specifications of the outer high-strength truncated cone hollow gasket, the graphite truncated cone hollow gasket and the inner high-strength truncated cone hollow gasket are adapted to the core-fixing bevel groove, which is arranged in sequence and located inside it. The outer high-strength truncated cone hollow gasket and the inner high-strength truncated cone hollow gasket are both made of high-temperature composite of silicon nitride and silicon carbide. The taper ratio of the core-fixing bevel groove ranges from 0.16 to 0.55. The liquid inlet hole is a conical trapezoidal structure with a large outside and a small inside, and the taper ratio ranges from 0 to 1.15. There are four groups of liquid inlet holes, and they are all connected to the inside of the hollow through hole.
[0011] As a further solution of the utility model: the limit grooves and the limit strips are each provided in three groups, the limit strips can be adapted to be plugged into the limit grooves, the outlet through hole is opened through the middle tube of the crystallizer outlet mold, the plug-in tube and the external threaded connecting tube, and the inner surface of the outlet through hole is coated with a graphite coating.
[0012] Compared with the prior art, the beneficial effects of the utility model are:
[0013] In the present utility model, the outer gasket limiting lines, the middle gasket limiting lines, and the inner gasket limiting lines are adapted and engaged with the inclined surface groove limiting lines, which can prevent the centering component from easily moving within the centering inclined surface groove during operation and causing damage to the metal wire. By providing a liquid inlet hole that is larger on the outside and smaller on the inside, the fluidity of the molten metal entering the centering mold can be increased, and the bonding property between the steel wire and the molten metal can be improved. By providing an outer high-strength truncated cone hollow gasket and an inner high-strength truncated cone hollow gasket made of a high-temperature composite of silicon nitride and silicon carbide, firstly, its strength can be increased and its service life can be extended. Secondly, after wear in the later stage, only the gasket needs to be replaced, and there is no need to replace the entire set of centering molds, making the replacement more convenient. By providing the limiting grooves and limiting strips, the graphite mold tube assembly and the outlet mold assembly can be positioned and installed conveniently and quickly, and a certain limiting effect can be achieved to prevent them from being too prone to deflection during operation and causing processing defects. Description of the Drawings
[0014] Figure 1 is the overall structural schematic diagram of a centering mold for a horizontal continuous casting process according to the present utility model;
[0015] Figure 2 is the structural schematic diagram of the centering component in a centering mold for a horizontal continuous casting process according to the present utility model;
[0016] Figure 3 is the sectional internal structural schematic diagram of the graphite mold tube assembly in a centering mold for a horizontal continuous casting process according to the present utility model;
[0017] Figure 4 is the structural schematic diagram of the outlet mold component in a centering mold for a horizontal continuous casting process according to the present utility model.
[0018] In the figure: 1, centering component; 2, graphite mold tube assembly; 3, outlet mold component; 4, outer high-strength truncated cone hollow gasket; 5, graphite truncated cone hollow gasket; 6, inner high-strength truncated cone hollow gasket; 7, cylindrical graphite mold tube body; 8, centering inclined surface groove; 9, hollow through hole; 10, outlet mold slot; 11, liquid inlet hole; 12, outer gasket limiting line; 13, middle gasket limiting line; 14, inner gasket limiting line; 15, inclined surface groove limiting line; 16, crystallizer outlet mold intermediate tube; 17, insertion tube; 18, limiting groove; 19, limiting strip; 20, external threaded connecting tube; 21, outer gasket inner hole; 22, middle gasket inner hole; 23, inner gasket inner hole; 24, outlet through hole. Detailed Embodiment
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0020] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "set" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations. The following will describe the embodiments according to the overall structure of the present utility model.
[0021] Refer to Figures 1 to 4, in the embodiment of the present utility model, a centering die for horizontal continuous casting process includes: a centering component 1, a graphite die tube component 2 is arranged outside one end of the centering component 1, an outlet die component 3 is inserted at one end of the graphite die tube component 2. The centering component 1 includes an outer high-strength conical hollow gasket 4, a graphite conical hollow gasket 5 and an inner high-strength conical hollow gasket 6. The graphite conical hollow gasket 5 is arranged between the outer high-strength conical hollow gasket 4 and the inner high-strength conical hollow gasket 6. The graphite die tube component 2 includes a cylindrical graphite die tube body 7. A centering inclined groove 8 is opened at one end inside the cylindrical graphite die tube body 7, a hollow through hole 9 is opened in the middle inside the cylindrical graphite die tube body 7, an outlet die slot 10 is opened at the other end inside the cylindrical graphite die tube body 7, and a liquid inlet hole 11 is opened on the middle side wall of the cylindrical graphite die tube body 7. The combined specifications of the outer high-strength conical hollow gasket 4, the graphite conical hollow gasket 5 and the inner high-strength conical hollow gasket 6 are adapted to the centering inclined groove 8 and are arranged in sequence inside it. Both the outer high-strength conical hollow gasket 4 and the inner high-strength conical hollow gasket 6 are made of high-temperature composite of silicon nitride and silicon carbide. The taper ratio range of the centering inclined groove 8 is from 0.16 to 0.55. The liquid inlet hole 11 is a tapered trapezoidal structure with a larger outer diameter and a smaller inner diameter, and the taper ratio range is from 0 to 1.15. Four groups of liquid inlet holes 11 are opened and are all communicated with the inside of the hollow through hole 9.
[0022] An outer gasket limiting pattern 12 is opened on the outside of the outer high-strength conical hollow gasket 4, a middle gasket limiting pattern 13 is opened on the outside of the graphite conical hollow gasket 5, an inner gasket limiting pattern 14 is opened on the outside of the inner high-strength conical hollow gasket 6, and an inclined groove limiting pattern 15 is opened on the inner wall of the centering inclined groove 8. The outer gasket limiting pattern 12, the middle gasket limiting pattern 13 and the inner gasket limiting pattern 14 are adapted to the inclined groove limiting pattern 15 in terms of specifications.
[0023] Adopting the above scheme: by opening the liquid inlet hole 11 with a larger outer diameter and a smaller inner diameter, the fluidity of the molten metal entering the centering die can be increased, and the bonding property between the steel wire and the molten metal can be improved. By setting the outer high-strength conical hollow gasket 4 and the inner high-strength conical hollow gasket 6 made of high-temperature composite of silicon nitride and silicon carbide, firstly, their strength can be increased and the service life can be extended. Secondly, after wear in the later stage, only the gasket needs to be replaced, and there is no need to replace the whole set of centering die, which is more convenient.
[0024] The exit die assembly 3 includes a mold exit intermediate pipe 16 of the crystallizer. One end of the mold exit intermediate pipe 16 of the crystallizer is fixedly connected with an insertion pipe 17. A limiting groove 18 is formed on the side of the insertion pipe 17. A limiting strip 19 is fixedly connected to the inner side wall of the exit die slot 10. The other end of the mold exit intermediate pipe 16 of the crystallizer is fixedly connected with an externally threaded connecting pipe 20. An exit through hole 24 is formed inside the insertion pipe 17. The insertion pipe 17 is adaptively inserted into the exit die slot 10. The number of the limiting grooves 18 and the limiting strips 19 is set to three groups each. The limiting strip 19 can be adaptively inserted into the limiting groove 18. The exit through hole 24 runs through the mold exit intermediate pipe 16 of the crystallizer, the insertion pipe 17 and the externally threaded connecting pipe 20. A graphite coating is applied to the inner surface of the exit through hole 24. An outer gasket inner hole 21 is formed inside the outer high-strength conical hollow gasket 4. A middle gasket inner hole 22 is formed inside the graphite conical hollow gasket 5. An inner gasket inner hole 23 is formed inside the inner high-strength conical hollow gasket 6. The specifications and positions of the outer gasket inner hole 21, the middle gasket inner hole 22 and the inner gasket inner hole 23 are adapted. A graphite coating is applied to the inner surface of the middle gasket inner hole 22.
[0025] With the above solution: Through the provided limiting grooves 18 and limiting strips 19, the graphite die pipe assembly 2 and the exit die assembly 3 can be positioned and installed conveniently and quickly, and a certain limiting effect can be achieved to prevent them from being too prone to deflection during work, resulting in processing defects.
[0026] The working principle of the present utility model is as follows: When in use, select the outer high-strength conical hollow gasket 4, the graphite conical hollow gasket 5 and the inner high-strength conical hollow gasket 6 with appropriate diameters, combine them in sequence and embed them into the centering inclined groove 8. At this time, the outer gasket limiting lines 12, the middle gasket limiting lines 13 and the inner gasket limiting lines 14 are adaptively engaged with the inclined groove limiting lines 15, which can prevent the centering assembly 1 from easily moving in the centering inclined groove 8 during work and causing damage to the metal wire. By providing the liquid inlet hole 11 with a large outer and small inner diameter, the fluidity of the molten metal entering the centering die can be increased, and the bonding property between the steel wire and the molten metal can be improved. By providing the outer high-strength conical hollow gasket 4 and the inner high-strength conical hollow gasket 6 made of high-temperature composite of silicon nitride and silicon carbide, firstly, their strength can be increased and the service life can be extended. Secondly, after wear in the later stage, only the gasket needs to be replaced, and there is no need to replace the whole set of centering dies, which is more convenient. Through the provided limiting grooves 18 and limiting strips 19, the graphite die pipe assembly 2 and the exit die assembly 3 can be positioned and installed conveniently and quickly, and a certain limiting effect can be achieved to prevent them from being too prone to deflection during work, resulting in processing defects.
[0027] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.
Claims
1. A centering die for a horizontal continuous casting process, characterized in that, Including: A centering component (1), on the outer side of one end of the centering component (1), there is a graphite mold tube component (2). One end of the graphite mold tube component (2) is inserted with an outlet mold component (3). The centering component (1) includes an outer high-strength conical hollow gasket (4), a graphite conical hollow gasket (5), and an inner high-strength conical hollow gasket (6). The graphite conical hollow gasket (5) is arranged between the outer high-strength conical hollow gasket (4) and the inner high-strength conical hollow gasket (6). The graphite mold tube component (2) includes a cylindrical graphite mold tube body (7). At one end inside the cylindrical graphite mold tube body (7), there is a centering inclined groove (8). In the middle part inside the cylindrical graphite mold tube body (7), there is a hollow through hole (9). At the other end inside the cylindrical graphite mold tube body (7), there is an outlet mold slot (10). On the middle side wall of the cylindrical graphite mold tube body (7), there is a liquid inlet hole (11).
2. The centering die for a horizontal continuous casting process according to claim 1, characterized in that, On the outer side of the outer high-strength conical hollow gasket (4), there is an outer gasket limiting pattern (12). On the outer side of the graphite conical hollow gasket (5), there is a middle gasket limiting pattern (13). On the outer side of the inner high-strength conical hollow gasket (6), there is an inner gasket limiting pattern (14). On the inner wall of the centering inclined groove (8), there is an inclined groove limiting pattern (15). The outer gasket limiting pattern (12), the middle gasket limiting pattern (13), and the inner gasket limiting pattern (14) are of suitable specifications to the inclined groove limiting pattern (15).
3. The centering die for a horizontal continuous casting process according to claim 1, characterized in that, The outlet mold component (3) includes a crystallizer outlet mold intermediate tube (16). One end of the crystallizer outlet mold intermediate tube (16) is fixedly connected with an insertion tube (17). On the side of the insertion tube (17), there is a limiting groove (18). On the inner side wall of the outlet mold slot (10), there is a limiting strip (19). The other end of the crystallizer outlet mold intermediate tube (16) is fixedly connected with an external thread connecting tube (20). Inside the insertion tube (17), there is an outlet through hole (24). The insertion tube (17) is adaptively inserted inside the outlet mold slot (10).
4. The centering die for a horizontal continuous casting process according to claim 1, characterized in that, Inside the outer high-strength conical hollow gasket (4), there is an outer gasket inner hole (21). Inside the graphite conical hollow gasket (5), there is a middle gasket inner hole (22). Inside the inner high-strength conical hollow gasket (6), there is an inner gasket inner hole (23). The outer gasket inner hole (21), the middle gasket inner hole (22), and the inner gasket inner hole (23) are of suitable specifications and positions. The inner surface of the middle gasket inner hole (22) is coated with a graphite coating.
5. A centering die for a horizontal continuous casting process according to claim 1, characterized in that, The outer high-strength truncated cone hollow gasket (4), the graphite truncated cone hollow gasket (5) and the inner high-strength truncated cone hollow gasket (6) are combined in specifications to match the core-fixing inclined surface groove (8) and are arranged in sequence inside the core-fixing inclined surface groove (8). The outer high-strength truncated cone hollow gasket (4) and the inner high-strength truncated cone hollow gasket (6) are both made of high-temperature composite of silicon nitride and silicon carbide. The taper ratio of the core-fixing inclined surface groove (8) ranges from 0.16 to 0.
55. The liquid inlet hole (11) is a conical trapezoidal structure with a larger outer portion and a smaller inner portion and a taper ratio range of 0 to 1.
15. The liquid inlet holes (11) are provided in four groups and are all connected to the inside of the hollow through hole (9).
6. A centering die for a horizontal continuous casting process according to claim 3, characterized in that, The limiting grooves (18) and the limiting strips (19) are each provided in three groups, the limiting strips (19) can be adapted to be plugged into the limiting grooves (18), the outlet through-holes (24) are opened through the inside of the crystallizer outlet mold intermediate tube (16), the plug-in tube (17) and the external threaded connecting tube (20), and the inner surface of the outlet through-holes (24) is coated with a graphite coating.