Flow stabilizing device for lower pouring in neodymium iron boron steel smelting

Abstract

The utility model discloses a current stabilizer for pouring in neodymium iron boron steel smelting, and belongs to the technical field of smelting. A flow stabilizing device for pouring in neodymium iron boron steel smelting is used for pouring molten steel and comprises a prefabricated cavity and a flow stabilizing assembly. The prefabricated cavity is of a hollow structure, and a sprue gate is formed in the edge of the lower side face of the prefabricated cavity; the flow stabilizing assembly comprises a first baffle and a second baffle. The second baffle is horizontally and fixedly arranged on the upper side of the first baffle. The first baffle is embedded in the sprue gate to block part of the sprue gate, and at least part of the first baffle is communicated with the sprue gate; the two sides of the second baffle abut against the inner side wall of the prefabricated cavity. The speed of molten steel in the smelting process can be controlled, so that the flowing speed of the molten steel is stabilized, impact during pouring is reduced, and the liquid level is more stable.

Description

Technical Field

[0001] The utility model belongs to the technical field of smelting, and more specifically relates to a flow stabilizing device for smelting and pouring NdFeB steel. Background Art

[0002] In the production of various steel products in steel mills, there are two methods for solidifying molten steel: traditional die casting and continuous casting. Neodymium iron boron magnets, a commonly used steel material, are widely used in electronic products such as hard drives, mobile phones, headphones, and battery-powered tools.

[0003] During the smelting and pouring process of NdFeB steel, the smelted molten steel needs to be poured into the pouring nozzle. The flow rate of the molten steel is difficult to control during the pouring process. Therefore, a flow stabilizing device is needed to buffer the molten steel during pouring to control the speed of the molten steel during the smelting process, slow down the flow rate, reduce the impact, and make the liquid level more stable. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a flow stabilizing device for NdFeB steel smelting and pouring, which can control the speed of molten steel during smelting to stabilize the flow speed of molten steel, reduce the impact during pouring, and make the liquid level more stable.

[0005] The utility model discloses a flow stabilizing device for pouring molten steel during smelting of NdFeB steel, which includes a prefabricated cavity and a flow stabilizing assembly. The prefabricated cavity is a hollow structure, and a pouring port is provided at the edge of the lower side of the prefabricated cavity. The flow stabilizing assembly includes a first baffle and a second baffle, wherein the second baffle is fixedly disposed horizontally above the first baffle. The first baffle is embedded in the pouring port to block a portion of the pouring port, and at least a portion of the first baffle is connected to the pouring port. Both sides of the second baffle abut against the inner side wall of the prefabricated cavity.

[0006] As a further improvement of the present invention, the pouring gate is a rectangular structure, one end face of the first baffle is in contact with the inner side face of the pouring gate, and a gap is left between the other end face and the inner side face of the pouring gate to form a steady flow outlet.

[0007] As a further improvement of the present invention, a flow stabilizing hole is provided at the end of the first baffle close to the inner side of the pouring gate, and the flow stabilizing hole communicates with the interior of the prefabricated cavity and the lower side of the pouring gate.

[0008] As a further improvement of the present invention, the second baffle is a rectangular structure, the lower side of the second baffle is fixedly connected to the upper side of the first baffle, and both ends of the second baffle are respectively in contact with the inner side walls of the prefabricated cavity.

[0009] As a further improvement of the present invention, the prefabricated cavity includes a first frame, a second frame, a transverse frame, and a bottom plate. The first frame and the second frame are symmetrically arranged, and a transverse frame is provided between the upper and lower ends of each of the first and second frames. The bottom plate is provided on the lower sides of the first frame, the second frame, and the transverse frame.

[0010] As a further improvement of the present invention, a transition assembly is also included. The transition assembly includes a first transition trough. The first transition trough is formed on the upper side of the second baffle, directly above the first baffle and adjacent to the inner wall of the prefabricated cavity. The first transition trough is a downwardly slanted trough, forming a downward channel for the molten steel on the side away from the first baffle.

[0011] As a further improvement of the present invention, the transition assembly further includes a plurality of second transition troughs. These second transition troughs are evenly spaced on the upper side of the second baffle and are all located on the same side of the first transition trough. The second transition troughs are downwardly inclined troughs, opening away from the first baffle to form a downward channel for the molten steel. The maximum height of the second transition troughs is greater than the maximum height of the first transition trough.

[0012] As a further improvement of the present invention, the transition assembly further comprises a guide groove. The guide groove is horizontally arranged on a side of the second baffle away from the first baffle. The guide groove is an inclined groove slanting downward toward the pouring gate, and its height is lowest on the side closest to the pouring gate.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] By setting up a prefabricated cavity and a flow stabilizing component, the molten steel injected into the prefabricated cavity is poured in sections. The molten steel will not enter the pouring mouth directly all at once. After reaching a certain level, the molten steel spreads into the pouring mouth in sections. This can control the speed of the molten steel during the smelting process, stabilize the flow speed of the molten steel, reduce the impact during pouring, and make the liquid level more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic structural diagram of the prefabricated cavity of the present utility model;

[0017] Figure 3 This is a schematic structural diagram of a second embodiment of the present utility model;

[0018] Figure 4 This is another structural diagram of the second embodiment of the present utility model.

[0019] Description of the numbers in the figure:

[0020] Prefabricated cavity 1, first frame 11, second frame 12, transverse frame 13, pouring gate 2, flow stabilizing component 3, first baffle 31, second baffle 32, flow stabilizing hole 33, transition component 4, first transition groove 41, second transition groove 42, guide groove 43. DETAILED DESCRIPTION

[0021] Specific embodiment 1: Please refer to Figure 1-Figure 2 A flow stabilizing device for smelting and pouring NdFeB steel is provided, which is used for pouring molten steel and includes a prefabricated cavity 1 and a flow stabilizing component 3. The prefabricated cavity 1 is a hollow structure, and a pouring port 2 is provided at the edge of the lower side of the prefabricated cavity 1. The prefabricated cavity 1 includes a first frame 11, a second frame 12, a transverse frame 13 and a bottom plate. The first frame 11 and the second frame 12 are respectively arranged symmetrically on the left and right, and a transverse frame 13 is respectively provided between the upper and lower ends of the first frame 11 and the second frame 12. The bottom plate is arranged on the lower side of the first frame 11, the second frame 12 and the transverse frame 13 to form a rectangular prefabricated cavity 1. In this embodiment, the pouring port 2 is arranged near the edge of the first frame 11.

[0022] The flow stabilization assembly 3 includes a first baffle 31 and a second baffle 32. The second baffle 32 is fixedly positioned horizontally above the first baffle 31. The first baffle 31 is embedded within the pouring spout 2 to partially block the pouring spout 2. At least a portion of the first baffle 31 is in communication with the pouring spout 2. The second baffle 32 abuts the inner wall of the prefabricated cavity 1 on both sides. The second baffle 32 is lower than the first and second frames 11, 12, dividing the prefabricated cavity 1 into two sections.

[0023] The pouring port 2 is a rectangular structure. One end face of the first baffle 31 abuts against the inner side of the pouring port 2, and a gap is left between the other end face and the inner side of the pouring port 2 to form a steady flow port. A steady flow hole 33 is provided at the end of the first baffle 31 close to the inner side of the pouring port 2. The steady flow hole 33 connects the interior of the prefabricated cavity 1 and the lower side of the pouring port 2. The second baffle 32 is a rectangular structure. The lower side of the second baffle 32 is fixedly connected to the upper side of the first baffle 31, and the two ends of the second baffle 32 abut against the inner wall of the prefabricated cavity 1. Figure 1 As shown, in this embodiment, the upper surface of the second baffle 32 is a smooth surface.

[0024] When pouring molten steel into the prefabricated cavity 1, the molten steel first enters the pouring port 2 through the steady flow hole 33 on the first baffle 31. When the molten steel level rises to the upper surface of the second baffle 32, the molten steel enters the steady flow port after covering the second baffle 32.

[0025] Specific embodiment 2: Please refer to Figure 3-Figure 4A flow stabilizing device for NdFeB steel smelting and pouring is disclosed. The similarities between this embodiment and the first embodiment are not repeated here. The difference lies in that it also includes a transition assembly 4. The transition assembly 4 includes a first transition trough 41, a plurality of second transition troughs 42, and a guide trough 43. The first transition trough 41 is provided on the upper side of the second baffle 32. The first transition trough 41 is located directly above the first baffle 31 and close to the inner wall of the prefabricated cavity 1. The first transition trough 41 is an inclined trough with an opening facing downward, so as to form a downward channel for molten steel on the side away from the first baffle 31.

[0026] A plurality of second transition grooves 42 are evenly arranged on the upper side of the second baffle 32 and are all located on the same side of the first transition groove 41. The second transition groove 42 is an inclined groove with an opening facing downward, so as to form a downward channel for the molten steel on the side away from the first baffle 31. The maximum height of the second transition groove 42 is higher than the maximum height of the first transition groove 41. When the molten steel reaches the height of the first transition groove 41, it is first guided into the steady flow port through the first transition groove 41, so that part of the molten steel is first transitioned; when the height of the molten steel continues to rise, the liquid level reaches the height of the second transition groove 42, and the molten steel then enters another part of the prefabricated cavity 1 through the second transition groove 42.

[0027] The guide groove 43 is horizontally disposed on the side of the second baffle 32 away from the first baffle 31. The guide groove 43 is an inclined groove slanting downward toward the pouring gate 2, and its height is lowest near the pouring gate 2. This guide groove guides the molten steel in the second transition trough 42 directly to the diversion port, thereby accelerating the diversion speed and improving the diversion stability.

Claims

1. A flow stabilizing device for pouring molten steel during NdFeB steel smelting, characterized by: The invention comprises a prefabricated cavity (1) and a flow stabilizing assembly (3); the prefabricated cavity (1) is a hollow structure, and a pouring port (2) is provided at the edge of the lower side of the prefabricated cavity (1); the flow stabilizing assembly (3) comprises a first baffle (31) and a second baffle (32), and the second baffle (32) is fixedly arranged horizontally on the upper side of the first baffle (31); the first baffle (31) is embedded in the pouring port (2) to block part of the pouring port (2), and at least a part of the first baffle (31) is connected to the pouring port (2); and both sides of the second baffle (32) are respectively in contact with the inner side wall of the prefabricated cavity (1).

2. A flow stabilizing device for NdFeB steel smelting and pouring according to claim 1, characterized in that: The pouring port (2) is a rectangular structure. One end face of the first baffle (31) abuts against the inner side face of the pouring port (2), and a gap is left between the other end face and the inner side face of the pouring port (2) to form a steady flow port.

3. A flow stabilizing device for NdFeB steel smelting and pouring according to claim 2, characterized in that: A flow stabilizing hole (33) is provided at the end of the first baffle (31) close to the inner side of the pouring gate (2), and the flow stabilizing hole (33) communicates with the interior of the prefabricated cavity (1) and the lower side of the pouring gate (2).

4. A flow stabilizing device for NdFeB steel smelting and pouring according to claim 2, characterized in that: The second baffle (32) is a rectangular structure, the lower side of the second baffle (32) is fixedly connected to the upper side of the first baffle (31), and both ends of the second baffle (32) are respectively in contact with the inner side walls of the prefabricated cavity (1).

5. The flow stabilizing device for NdFeB steel smelting and pouring according to claim 1, characterized in that: The prefabricated cavity (1) comprises a first frame (11), a second frame (12), a transverse frame (13) and a bottom plate; the first frame (11) and the second frame (12) are respectively arranged symmetrically on the left and right, and a transverse frame (13) is respectively arranged between the upper and lower ends of the first frame (11) and the second frame (12); and the bottom plate is arranged on the lower side surfaces of the first frame (11), the second frame (12) and the transverse frame (13).

6. The flow stabilizing device for NdFeB steel smelting and pouring according to claim 1, characterized in that: The invention also includes a transition assembly (4); the transition assembly (4) includes a first transition groove (41); the first transition groove (41) is opened on the upper side of the second baffle (32), and the first transition groove (41) is located directly above the first baffle (31) and close to the inner side wall of the prefabricated cavity (1); the first transition groove (41) is an inclined groove with an opening facing downward, so as to form a downward channel for molten steel on the side away from the first baffle (31).

7. A flow stabilizing device for NdFeB steel smelting and pouring according to claim 6, characterized in that: The transition assembly (4) further includes a plurality of second transition grooves (42); the plurality of second transition grooves (42) are evenly arranged on the upper side surface of the second baffle (32) and are all located on the same side of the first transition groove (41); the second transition grooves (42) are inclined grooves with an opening direction facing downward, so as to form a channel for molten steel to flow downward on the side away from the first baffle (31); the maximum height of the second transition grooves (42) is higher than the maximum height of the first transition groove (41).

8. The flow stabilizing device for NdFeB steel smelting and pouring according to claim 7, characterized in that: The transition assembly (4) further includes a guide groove (43); the guide groove (43) is horizontally arranged on a side of the second baffle (32) away from the first baffle (31); the guide groove (43) is an inclined groove inclined downward toward the pouring port (2), and its height is lowest on the side close to the pouring port (2).

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