A nozzle structure for producing amorphous nanocrystalline thick ribbon

Abstract

The utility model discloses an amorphous nanometer thick band production nozzle structure, including nozzle main part, the inside of nozzle main part is provided with the flow guide mechanism of preventing high temperature creep, and the flow guide mechanism includes trapezoidal flow guide board, trapezoidal flow guide board fixed mounting is in the inner wall of nozzle main part lower end opening, and the lower end of trapezoidal flow guide board is fixedly installed with the discharge block, the utility model discloses through using honeycomb type inner bag, to disperse melt, reduce inside because of high temperature and creep, simultaneously used trapezoidal flow guide board, reduce boundary layer separation, avoid vortex formation, make melt will not accumulate in dead angle.

Description

Technical Field

[0001] This utility model relates to the field of rapid quenching technology for amorphous alloy melts, specifically a nozzle structure for producing amorphous nanocrystalline thick strips. Background Technology

[0002] In amorphous and nanocrystalline thick strip production equipment, the nozzle is the core component that determines the quality of the strip.

[0003] A search revealed that prior art publication number CN218798972U discloses a nozzle structure for amorphous nanocrystalline ribbons, relating to the field of amorphous nanocrystalline ribbon technology. The structure includes a nozzle cup with a slit at the bottom of its inner cavity, a slot at the bottom of the nozzle cup, and a nozzle component that is engaged within the slot. The nozzle component has integrally formed curved plates on both its left and right sides, a nozzle orifice at its bottom, and a slit at its top. This invention utilizes the snap-fit ​​structure between the nozzle cup's slot and the nozzle component to provide support, preventing the nozzle component from loosening under pressure and thus preventing steel leakage. The asymmetrical height of the two curved plates also prevents incorrect installation of the nozzle component by avoiding reverse mounting.

[0004] Existing nozzle structures for producing amorphous and nanocrystalline thick strips suffer from high-temperature creep due to excessively high internal melt temperatures. This creep leads to uneven strip thickness due to uneven internal flow velocity. Therefore, based on the above research and addressing these existing problems, a nozzle structure for producing amorphous and nanocrystalline thick strips is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a nozzle structure for producing amorphous and nanocrystalline thick strips, in order to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: it includes a nozzle body, and the nozzle body is provided with a flow guiding mechanism to prevent high-temperature creep. The flow guiding mechanism includes a trapezoidal flow guiding plate, which is fixedly installed on the inner wall of the lower opening of the nozzle body, and a discharge block is fixedly installed at the lower end of the trapezoidal flow guiding plate.

[0007] Furthermore, an inlet pipe is fixedly installed on the outer wall of the nozzle body, and an outlet pipe is fixedly installed at the end of the nozzle body away from the inlet pipe. A water cooling device for cooling the melt is provided at the end of the inlet pipe and the outlet pipe away from the nozzle body.

[0008] Furthermore, the water cooling device includes a water tank, an inlet pipe is fixedly installed on the outer wall of the water tank, and a delivery pipe is fixedly installed at the upper end of the water tank. A water pump is fixedly installed at the end of the delivery pipe away from the water tank, and an outlet pipe is fixedly installed at the output end of the water pump.

[0009] Furthermore, a honeycomb inner liner is fixedly installed at the upper end of the trapezoidal guide plate, and the honeycomb inner liner is fixedly installed on the inner wall of the nozzle body.

[0010] Furthermore, a wind hood is rotatably installed at the lower end of the discharge block, a reverse cleaning device is provided at the lower end of the wind hood, a fixing bolt is rotatably installed on a pre-set hole in the discharge block, and a nut is rotatably installed at the lower end of the fixing bolt.

[0011] Furthermore, the reverse cleaning device includes an air supply pipe, the upper end of which is fixedly installed at the lower end of the air hood, and an argon gas cylinder is fixedly installed at the lower end of the air supply pipe.

[0012] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model uses a honeycomb inner liner to disperse the melt and reduce internal creep due to high temperature. At the same time, it uses a trapezoidal guide plate to reduce boundary layer separation and avoid eddy formation, so that the melt will not accumulate in dead corners. 2. This utility model uses argon gas reverse cleaning. After the nozzle has been working for 50 hours, the wind hood is rotated so that it fits against the discharge port. The argon gas tank will then release the argon gas inside, allowing the argon gas to be blown back into the nozzle to clean the inside. 3. In this invention, the cooling system performs initial cooling on the melt before it enters the inlet buffer chamber. When the melt enters the multi-stage flow guiding module, the cooling system performs secondary cooling on the melt. When the melt is ejected from the curved surface flow lip, the cooling system performs a final cooling on the melt. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the nozzle of this utility model; Figure 3 This is a schematic diagram of the nozzle structure of this utility model; Figure 4 This is a schematic diagram of the honeycomb inner liner structure of this utility model; Figure 5 This is a cross-sectional view of the honeycomb inner liner of this utility model; Figure 6 This is a schematic diagram of the trapezoidal guide plate structure of this utility model. Figure 7 This is a schematic diagram of the trapezoidal guide plate structure of this utility model; Figure 8 This is a schematic diagram of the cooling system structure of this utility model.

[0014] In the diagram: 1. Nozzle body; 2. Inlet pipe; 3. Water tank; 4. Water delivery pipe; 5. Water pump; 6. Outlet pipe; 7. Gas delivery pipe; 8. Argon cylinder; 9. Honeycomb inner liner; 10. Trapezoidal guide plate; 11. Fixing bolt; 12. Nut; 13. Air hood; 14. Discharge block; 15. Box cover. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example: Please refer to Figures 1-6 A nozzle structure for producing amorphous and nanocrystalline thick strips includes a nozzle body 1. Melt enters the nozzle body 1 through a pre-set hole at one end. The nozzle body 1 has a flow guiding mechanism to prevent high-temperature creep. This mechanism includes a trapezoidal flow guide plate 10, which is fixedly installed on the inner wall of the lower opening of the nozzle body 1. The water channel of the trapezoidal flow guide plate 10 communicates with the water channel of the nozzle body 1. The trapezoidal flow guide plate 10 is an asymmetric stepped flow channel that accelerates the internal melt flow rate. A discharge block 14 is fixedly installed at the lower end of the 0. The discharge port of the discharge block 14 is trapezoidal to prevent uneven flow of the melt. Specifically, the metal after high-temperature smelting enters the interior of the nozzle body 1 through the preset hole of the nozzle body 1 and passes through the flow guiding mechanism to prevent high-temperature creep before reaching the trapezoidal guide plate 10. The trapezoidal guide plate 10 is an asymmetrical stepped flow channel, which allows the melt to quickly pass through the trapezoidal guide plate 10 to the position of the discharge block 14, reducing the high-temperature creep rate. Then, it is sprayed out from the double-nozzle slit of the discharge block 14 onto the cooling roller for cooling.

[0017] Please see Figures 1-2 A water inlet pipe 2 is fixedly installed on the outer wall of the nozzle body 1, and a water outlet pipe 6 is fixedly installed at the end of the nozzle body 1 away from the water inlet pipe 2. A water cooling device for cooling the melt is provided at the end of the water inlet pipe 2 and the water outlet pipe 6 away from the nozzle body 1. The water cooling device sends water through the water inlet pipe 2 into the water tank set between the nozzle body 1 and the trapezoidal guide plate 10 to cool the nozzle and the internal melt. The cooled water is discharged through the water outlet pipe 6.

[0018] Please see Figures 1-2The water cooling device includes a water tank 3, an inlet pipe 2 fixedly installed on the outer wall of the water tank 3, a tank cover 15 rotatably installed on the upper end of the water tank 3, and a water delivery pipe 4 fixedly installed on the upper end of the water tank 3. A water pump 5 is fixedly installed at the end of the water delivery pipe 4 away from the water tank 3. The water delivery pipe 4 is fixedly installed on the input end of the water pump 5, and an outlet pipe 6 is fixedly installed on the output end of the water pump 5. When cooling is performed, the water pump 5 is started, so that the water in the water tank 3 is sent into the water tank of the nozzle body 1 and the trapezoidal guide plate 10 through the inlet pipe 2. The cooled water enters the interior of the water pump 5 through the outlet pipe 6 and the input end of the water pump 5, and then is sent back to the interior of the water tank 3 for circulation through the output end of the water pump 5 and the water delivery pipe 4.

[0019] Please see Figures 1-4 A honeycomb inner liner 9 is fixedly installed at the upper end of the trapezoidal guide plate 10. At the same time, the honeycomb inner liner 9 is fixedly installed on the inner wall of the nozzle body 1. The honeycomb inner liner 9 is honeycomb-shaped, which maintains high temperature strength and increases creep resistance to 5-7 times that of traditional structures. The melt flows downward at the trapezoidal guide plate 10. Since the trapezoidal guide plate 10 is honeycomb-shaped, it disperses the melt and the honeycomb shape decomposes macroscopic stress into microscopic bending stress of porous walls, which reduces the high temperature creep rate.

[0020] Please see Figures 2-3 A fan shroud 13 is rotatably mounted on the lower end of the discharge block 14. A small block is provided on the protruding part of the fan shroud 13. A reverse cleaning device is provided on the lower end of the fan shroud 13. A fixing bolt 11 is rotatably mounted on a pre-set hole in the discharge block 14. A nut 12 is rotatably mounted on the lower end of the fixing bolt 11. The fixing bolt 11 and the nut 12 cooperate to make the discharge block 14 fit with the fan shroud 13. When the fan shroud 13 is rotated, when the small block of the fan shroud 13 fits with the protruding part of the discharge block 14, the fan shroud 13 fits with the cavity of the discharge block 14. After the nozzle has been working for 50 hours, the fan shroud 13 is rotated to make the small block of the fan shroud 13 fit with the protruding part of the discharge block 14. Then, wait for the reverse cleaning device to clean the inside of the nozzle.

[0021] Please see Figures 1-6 The reverse cleaning device includes an air supply pipe 7. The upper end of the air supply pipe 7 is fixedly installed at the lower end of the air hood 13, and an argon gas tank 8 is fixedly installed at the lower end of the air supply pipe 7. When the air hood 13 is in contact with the discharge block 14, the argon gas tank 8 releases the argon gas inside and uses the argon gas to reverse clean the inside of the nozzle to prevent residues in the dead corners inside the nozzle.

[0022] It is important to note that Figure 7 The diagram shows the system operation method of this solution: the cooling system performs initial cooling on the melt before it enters the inlet buffer chamber; when the melt enters the multi-stage flow guiding module, the cooling system performs secondary cooling on the melt; and when the melt is ejected from the curved flow stabilizing lip, the cooling system performs a final cooling on the melt.

[0023] Working principle: At the start of operation, the molten material enters the nozzle body 1 through the pre-set holes and flows downwards to the honeycomb inner liner 9. The honeycomb inner liner 9, while maintaining high-temperature strength, increases creep resistance to 5-7 times that of traditional structures. The molten material is diverted by the honeycomb inner liner 9 and continues downwards to the trapezoidal guide plate 10. The trapezoidal guide plate 10 is an asymmetric stepped flow channel. Simultaneously, the water pump 5 starts, sending water from the water tank 3 into the nozzle body 1 and the trapezoidal guide plate 10. In the water tank, the nozzle body 1, the trapezoidal guide plate 10, and the melt are cooled. The cooled water is returned to the water tank 3 by the water pump 5 for circulation. The melt quickly passes through the trapezoidal guide plate 10 to the position of the discharge block 14, and then sprays out from the double nozzle gap of the discharge block 14 onto the cooling roller for cooling. After the nozzle has been working for 50 hours, the wind shroud 13 is rotated to make the wind shroud 13 fit with the discharge block 14. Then the argon tank 8 releases argon gas, so that the argon gas cleans the inside of the nozzle in reverse.

[0024] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A nozzle structure for producing amorphous nanocrystalline thick strips, comprising a nozzle body (1), characterized in that: The nozzle body (1) is provided with a flow guiding mechanism to prevent high temperature creep. The flow guiding mechanism includes a trapezoidal flow guiding plate (10). The trapezoidal flow guiding plate (10) is fixedly installed on the inner wall of the lower opening of the nozzle body (1), and a discharge block (14) is fixedly installed at the lower end of the trapezoidal flow guiding plate (10).

2. The nozzle structure for producing amorphous nanocrystalline thick strips according to claim 1, characterized in that: A water inlet pipe (2) is fixedly installed on the outer wall of the nozzle body (1), and a water outlet pipe (6) is fixedly installed at the end of the nozzle body (1) away from the water inlet pipe (2). A water cooling device for cooling the melt is provided at the end of the water inlet pipe (2) and the water outlet pipe (6) away from the nozzle body (1).

3. The nozzle structure for producing amorphous nanocrystalline thick strips according to claim 2, characterized in that: The water cooling device includes a water tank (3), an inlet pipe (2) is fixedly installed on the outer wall of the water tank (3), and a water delivery pipe (4) is fixedly installed at the upper end of the water tank (3). A water pump (5) is fixedly installed at the end of the water delivery pipe (4) away from the water tank (3), and an outlet pipe (6) is fixedly installed at the output end of the water pump (5).

4. The nozzle structure for producing amorphous nanocrystalline thick strips according to claim 1, characterized in that: The upper end of the trapezoidal guide plate (10) is fixedly installed with a honeycomb inner liner (9), and the honeycomb inner liner (9) is fixedly installed on the inner wall of the nozzle body (1).

5. The nozzle structure for producing amorphous nanocrystalline thick strips according to claim 1, characterized in that: The lower end of the discharge block (14) is rotatably mounted with a wind hood (13), and the lower end of the wind hood (13) is provided with a reverse cleaning device. A fixing bolt (11) is rotatably mounted on a pre-set hole of the discharge block (14), and a nut (12) is rotatably mounted on the lower end of the fixing bolt (11).

6. The nozzle structure for producing amorphous nanocrystalline thick strips according to claim 5, characterized in that: The reverse cleaning device includes an air supply pipe (7), the upper end of which is fixedly installed at the lower end of the air hood (13), and an argon cylinder (8) is fixedly installed at the lower end of the air supply pipe (7).

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