An electromagnetic control device for continuous casting of copper-chromium-zirconium alloy

Abstract

The present application relates to the technical field of continuous casting of copper alloys, and discloses an electromagnetic control device for continuous casting of copper-chromium-zirconium alloys, which includes an electromagnetic deceleration mechanism and an electromagnetic flow guide mechanism, both of which are arranged radially outside the nozzle, the electromagnetic deceleration mechanism is used to reduce the flow rate of molten metal in the nozzle, the electromagnetic flow guide mechanism is used to adjust the flow mode of molten metal in the nozzle, and the electromagnetic deceleration mechanism is located on the side of the electromagnetic flow guide mechanism away from the molten metal outlet of the nozzle. The present application can alleviate the problem of uneven outflow of molten metal in an immersion nozzle.

Description

Technical Field

[0001] The present application relates to the field of continuous casting of copper alloys, and in particular to an electromagnetic control device for continuous casting of copper-chromium-zirconium alloys. Background Art

[0002] Continuous casting is an advanced technology that directly casts molten metal into shape. Compared with traditional methods, continuous casting technology has significant advantages such as greatly improving metal yield and ingot quality, saving energy, etc.

[0003] During the continuous casting process, the metal ladle containing refined molten metal is transported to the turntable. After the turntable rotates to the pouring position, the molten metal is poured into the tundish. After being processed in the tundish, the molten metal is controlled by the sliding nozzle to enter the submerged nozzle and flows into the crystallizer through the outlet at the bottom of the nozzle immersed in the crystallizer. After the molten metal flows into the crystallizer, it continuously solidifies into a metal billet. The outflow from the nozzle affects the flow state of the molten metal in the crystallizer, and the flow field, temperature field and liquid level fluctuation of the molten metal in the crystallizer directly affect the billet drawing speed and billet quality.

[0004] At present, since the sliding nozzle is usually in a half-open state, the flow direction of the molten metal injected downward into the immersion nozzle is not vertical, but obliquely downward; for this reason, the molten metal in the immersion nozzle will swing left and right like a snake while flowing downward into the crystallizer, and this flow is not a steady flow, that is, the molten metal is injected into the crystallizer through an unsteady flow path.

[0005] With regard to the above-mentioned related technologies, the inventor believes that the biased flow of molten metal in the submerged nozzle will lead to uneven outflow and oscillation of the nozzle; the uneven flow and temperature in the crystallizer and the fluctuation of the liquid level will lead to a series of problems such as slag rolls and surface cracks. In particular, with the increase of the continuous casting billet drawing speed, the uneven outflow of the nozzle and the fluctuation of the liquid level will increase, thereby limiting the increase of the drawing speed and causing serious quality defects of the billet. Summary of the invention

[0006] In order to alleviate the problem of uneven outflow of molten metal in an immersed nozzle, the present application provides an electromagnetic control device for continuous casting of copper-chromium-zirconium alloy.

[0007] The present application provides an electromagnetic control device for continuous casting of copper-chromium-zirconium alloy, which adopts the following technical solution:

[0008] An electromagnetic control device for continuous casting of copper-chromium-zirconium alloy comprises an electromagnetic deceleration mechanism and an electromagnetic flow guide mechanism, wherein the electromagnetic deceleration mechanism and the electromagnetic flow guide mechanism are both arranged on the radial outside of a water nozzle, the electromagnetic deceleration mechanism is used to reduce the flow rate of molten metal in the water nozzle, the electromagnetic flow guide mechanism is used to adjust the flow pattern of molten metal in the water nozzle, and the electromagnetic deceleration mechanism is located on the side of the electromagnetic flow guide mechanism away from the molten metal outlet of the water nozzle.

[0009] By adopting the above technical scheme, an electromagnetic deceleration mechanism is arranged on the side of the electromagnetic guide mechanism away from the molten metal outlet of the submerged nozzle. After the molten metal enters the nozzle from the tundish, the electromagnetic deceleration mechanism is first used to reduce the flow velocity of the molten metal in the nozzle. After the molten metal is decelerated by the electromagnetic deceleration mechanism, the electromagnetic guide mechanism is used to make the molten metal rotate and flow in the nozzle, thereby obtaining a uniform nozzle outflow, improving the uniformity of the molten metal flow and temperature distribution in the crystallizer, reducing liquid level fluctuations, and alleviating the influence of uneven molten metal outflow on the solidification quality of the ingot.

[0010] Optionally, the electromagnetic deceleration mechanism includes an electromagnet and a DC power supply, annular grooves are evenly opened on the inner hole wall of the water outlet, the electromagnet is a two-pole electromagnet, the electromagnet is arranged on both sides of the radial outer side of the water outlet, the NS pole surfaces of the electromagnet are arranged opposite to each other and the center line of the NS pole surface intersects perpendicularly with the axis of the water outlet.

[0011] By adopting the above technical scheme, the molten metal flowing through the electromagnetic fluid choke automatically fills the annular groove, and the molten metal in the annular groove constitutes an external load circuit of liquid metal magnetic fluid power generation. When molten metal flows through the nozzle from top to bottom, due to the effect of the magnetic field in the direction perpendicular to the molten metal flow, according to the principle of magnetic fluid power generation, an induced electric field is generated in the direction perpendicular to the molten metal flow, so that a transverse induced current is formed in the vertical direction of the molten metal flow; while the molten metal in the annular groove basically does not flow, and no induced electromotive force is generated therein due to the effect of the electromagnetic fluid, and it just becomes the external load of the liquid metal magnetic fluid power generation in the center flow of the guide tube, that is, the transverse current induced in the nozzle passes through the molten metal external load in the annular groove to form a closed loop, and The annular groove molten metal external load circuit in the present application is a molten metal directly connected to the central flow. It does not have the contact resistance between the electrode and the central flow of the usual liquid metal magnetohydrodynamic power generation, nor does it have the connection resistance in the external load circuit. Moreover, the temperature of the molten metal in the annular groove outside the central flow is lower than that of the molten metal in the central flow, and has a higher electrical conductivity. The magnetohydrodynamic power generation external load designed in this way is equivalent to a short-circuited external load closed loop, so that the induced current in the water nozzle reaches the maximum value; according to the electromagnetic fluid propulsion principle, in the molten metal with current flowing through, an electromagnetic force is generated under the action of the above-mentioned magnetic field, and the electromagnetic force generated by the current in the water nozzle is opposite to the flow direction of the molten metal, becoming a retardation force for the molten metal flow, thereby reducing the flow rate of the molten metal in the water nozzle.

[0012] Optionally, the DC power supply is an adjustable DC power supply.

[0013] By adopting the above technical solution, the DC power supply is an adjustable DC power supply. Since the magnitude of the electromagnetic force is proportional to the magnetic field strength of the electromagnet, the adjustable DC power supply is used to adjust the current applied to the electromagnetic winding, so as to adjust the resistance force acting on the molten metal flow in the center of the choke tube, change the flow rate of the molten metal in the water outlet, and improve the applicability of the electromagnetic control device.

[0014] Optionally, the electromagnetic flow guide mechanism includes an electromagnetic vortex component and a baffle rod arranged inside the water outlet, the electromagnetic vortex component is arranged on the radial outside of the water outlet, the baffle rod is arranged inside the water outlet and the baffle rod is coaxially fixedly connected to the water outlet, and the baffle rod is located on the side of the electromagnetic deceleration mechanism close to the electromagnetic vortex component.

[0015] By adopting the above technical scheme, a rotating magnetic field is formed in the water nozzle by using an electromagnetic swirling flow component. When the molten metal flows through the rotating magnetic field area, it is acted upon by the rotating magnetic field to generate a rotating force for rotation. By arranging a flow-blocking rod inside the water nozzle and changing the structure inside the water nozzle, the flow channel of the molten metal is made annular, thereby cooperating with the electromagnetic deceleration mechanism to reduce the flow velocity of the molten metal, slowing down the flow velocity of the molten metal in the rotating magnetic field area, prolonging the time that the rotating magnetic field acts on the molten metal, and improving the utilization rate of the rotating magnetic field.

[0016] Optionally, the molten metal outlet of the water nozzle is opened on the side wall of the water nozzle, and a plurality of the molten metal outlets are opened, and the plurality of the molten metal outlets are arranged at equal intervals along the circumference of the water nozzle, and the outflow direction of the molten metal outlet is parallel to the tangent direction of the inner circumference of the water nozzle.

[0017] By adopting the above technical scheme, the molten metal outlet of the nozzle is opened on the side wall of the nozzle and the outflow direction of the molten metal outlet is parallel to the tangent direction of the inner circumference of the nozzle, so that the molten metal flows out horizontally along the circumference of the nozzle in the crystallizer, which effectively reduces the strong turbulence of the crystallizer liquid surface caused by the impact of the injection flow, controls the flow of the molten metal in the crystallizer, improves the flow state and heat flow distribution of the injection flow in the crystallizer, and promotes faster and more uniform growth of the shell in the crystallizer.

[0018] Optionally, the electromagnetic control device also includes a gas diversion mechanism, the baffle rod is hollow, and a plurality of air outlet holes are opened on the side wall of the baffle rod close to the molten metal outlet, the plurality of air outlet holes are arranged in one-to-one correspondence with the plurality of molten metal outlets, the air outlet direction of the air outlet holes is collinear with the outlet flow direction of the corresponding molten metal outlets, and the gas diversion mechanism includes an air pump, which is connected to the interior of the baffle rod.

[0019] By adopting the above technical scheme, the baffle rod is hollow, and a plurality of air outlet holes are opened on the side wall of the baffle rod near the molten metal outlet, and gas is pumped into the baffle rod by an air pump, and the air flows out from the plurality of air outlet holes through the air channel inside the baffle rod, thereby enhancing the swirl of the molten metal in the water inlet, improving the stability of the molten metal outflow, and making the molten metal more evenly injected in the horizontal direction from the plurality of molten metal outlets; in addition, after the horizontally flowing gas enters the crystallizer, the gas forms bubbles in the molten metal, and the upward movement of the bubbles drives the flow of the molten metal, thereby enhancing the stirring effect of the molten metal, helping to improve the temperature and composition uniformity of the molten metal, and reducing the temperature and concentration gradients in the molten metal.

[0020] Optionally, the air pump is connected to a heat exchange coil, the heat exchange coil is located below the molten metal tundish, one end of the heat exchange coil is connected to the air pump, and the other end of the heat exchange coil is connected to the interior of the baffle rod.

[0021] By adopting the above technical solution, the heat exchange coil is located below the molten metal ladle, where the temperature is relatively high. The heat exchange coil is used to heat the gas pumped into the choke rod by the air pump, thereby reducing the possibility of affecting the crystallization of the molten metal due to the low temperature of the gas flowing out of the choke rod.

[0022] Optionally, an air inlet is opened on the side wall of the water inlet, a connecting pipe is arranged in the water inlet, one end of the connecting pipe is connected to the air inlet, the other end of the connecting pipe is connected to the inside of the baffle rod, and the heat exchange coil is connected to the air inlet.

[0023] By adopting the above technical solution, an air inlet is opened on the side wall of the water inlet, and the interior of the flow-blocking rod is connected with the air inlet by using a connecting pipe arranged inside the water inlet, and the heat exchange coil is connected with the air inlet opened on the side wall of the water inlet. When the water inlet needs to be replaced, it is only necessary to separate the heat exchange coil from the air inlet, thereby improving the convenience of replacing the water inlet.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] By arranging an electromagnetic deceleration mechanism on the side of the electromagnetic flow guide mechanism away from the molten metal outlet of the submerged nozzle, after the molten metal enters the nozzle from the tundish, the electromagnetic deceleration mechanism is first used to reduce the flow rate of the molten metal in the nozzle, and after the molten metal is decelerated by the electromagnetic deceleration mechanism, the electromagnetic flow guide mechanism is used to make the molten metal rotate and flow in the nozzle, thereby obtaining a uniform nozzle outflow, improving the uniformity of the molten metal flow and temperature distribution in the crystallizer, reducing liquid level fluctuations, and alleviating the influence of uneven molten metal outflow on the solidification quality of the ingot;

[0026] By utilizing electromagnetic swirling components to form a rotating magnetic field in the water nozzle, the molten metal is affected by the rotating magnetic field when flowing through the rotating magnetic field area, generating a rotating force to rotate; by arranging a flow-blocking rod inside the water nozzle and changing the structure inside the water nozzle, the flow channel of the molten metal is made annular, thereby cooperating with the electromagnetic deceleration mechanism to reduce the flow velocity of the molten metal, slowing down the flow velocity of the molten metal in the rotating magnetic field area, prolonging the time that the rotating magnetic field acts on the molten metal, and improving the utilization rate of the rotating magnetic field. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0028] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0029] Figure 2 It is a structural schematic diagram of the electromagnetic flow guide mechanism part and the water inlet part in the embodiment of the present application;

[0030] Figure 3 It is a schematic diagram of the structure of the water inlet part and the flow blocking rod part in the embodiment of the present application.

[0031] Figure numerals: 100, electromagnetic deceleration mechanism; 110, electromagnet; 200, electromagnetic flow guide mechanism; 210, electromagnetic swirl component; 220, flow blocking rod; 221, air outlet; 300, water inlet; 310, molten metal inlet; 320, molten metal outlet; 330, air inlet; 400, gas flow guide mechanism; 410, air pump; 420, heat exchange coil; 430, connecting pipe. DETAILED DESCRIPTION

[0032] In order to more clearly explain the overall concept of this application, the following Figure 1-Figure 3 This application is described in further detail.

[0033] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0034] The present application discloses an electromagnetic control device for continuous casting of copper-chromium-zirconium alloy. Figure 1 and Figure 2An electromagnetic control device for continuous casting of copper-chromium-zirconium alloy comprises an electromagnetic deceleration mechanism 100, an electromagnetic flow guiding mechanism 200, a gas flow guiding mechanism 400 and a nozzle 300. The nozzle 300 is a tubular structure with a circular cross section, a molten metal inlet 310 is provided at one end of the nozzle 300, and a plurality of molten metal outlets 320 are provided on the side wall at the other end of the nozzle 300. The plurality of molten metal outlets 320 are arranged at equal intervals along the circumference of the nozzle 300, and the outflow direction of the molten metal outlet 320 is parallel to the tangent direction of the inner circumference of the nozzle 300. The electromagnetic deceleration mechanism 100 and the electromagnetic flow guide mechanism 200 are both arranged on the radial outside of the water nozzle 300. The electromagnetic deceleration mechanism 100 is located on the side of the electromagnetic flow guide mechanism 200 away from the molten metal outlet 320 of the water nozzle 300. The gas flow guide mechanism 400 is connected to the inside of the water nozzle 300. The electromagnetic deceleration mechanism 100 is used to reduce the flow rate of the molten metal in the water nozzle 300, and the electromagnetic flow guide mechanism 200 is used to adjust the flow pattern of the molten metal in the water nozzle 300.

[0035] After the molten metal enters the nozzle 300 from the tundish, the electromagnetic deceleration mechanism 100 is first used to reduce the flow rate of the molten metal in the nozzle 300. After the molten metal is decelerated by the electromagnetic deceleration mechanism 100, the electromagnetic flow guide mechanism 200 is used to make the molten metal rotate and flow in the nozzle 300. The gas flow guide mechanism 400 is used to strengthen the swirling flow of the molten metal inside the nozzle 300, and is opened on the side wall of the nozzle 300 through the molten metal outlet 320. The outflow direction of the molten metal outlet 320 is parallel to the tangent direction of the inner circumference of the nozzle 300, so that the molten metal flows horizontally along the circumference of the nozzle 300 in the crystallizer, thereby improving the uniformity of the molten metal flow and temperature distribution in the crystallizer, reducing liquid level fluctuations, and alleviating the influence of uneven molten metal outflow on the solidification quality of the ingot.

[0036] Reference Figure 1 The electromagnetic deceleration mechanism 100 includes an electromagnet 110 and a DC power supply, and an annular groove is evenly formed on the inner hole wall of the water nozzle 300. The electromagnet 110 is a two-pole electromagnet 110, and the electromagnet 110 is arranged on both sides of the radial outer side of the water nozzle 300, and the NS pole surfaces of the electromagnet 110 are arranged oppositely and the center line of the NS pole surface intersects the axis of the water nozzle 300 perpendicularly.

[0037] The molten metal flowing through the nozzle 300 automatically fills the annular groove, and the molten metal in the annular groove constitutes the external load circuit of the liquid metal magnetic fluid power generation. When the molten metal flows through the nozzle 300 from top to bottom, due to the effect of the magnetic field in the direction perpendicular to the molten metal flow, according to the magnetic fluid power generation principle, an induced electric field is generated in the direction perpendicular to the molten metal flow, so that a transverse induced current is formed in the vertical plane direction of the molten metal flow. The molten metal in the annular groove basically does not flow, and no induced electromotive force is generated due to the action of the electromagnetic fluid, but it just becomes the external load of the liquid metal magnetohydrodynamic power generation in the central flow of the guide tube, that is, the induced transverse current in the water outlet 300 passes through the molten metal external load in the annular groove to form a closed loop; and the annular groove molten metal external load loop in the present application is a molten metal directly connected to the central flow, without the contact resistance between the electrode and the central flow of the usual liquid metal magnetohydrodynamic power generation, and without the connection resistance in the external load loop, and the temperature of the molten metal in the annular groove outside the central flow is lower than that of the molten metal in the central flow, and has a higher conductivity. The magnetohydrodynamic power generation external load designed in this way is equivalent to a short-circuited external load closed loop, so that the induced current in the water outlet 300 reaches the maximum value.

[0038] According to the electromagnetic fluid propulsion principle, in the molten metal through which electric current flows, an electromagnetic force is generated under the action of the above-mentioned magnetic field. The electromagnetic force generated by the current in the water outlet 300 is opposite to the flow direction of the molten metal, and becomes a retardation force for the molten metal flow, thereby reducing the flow rate of the molten metal in the water outlet 300.

[0039] Reference Figure 1 The DC power supply is an adjustable DC power supply. Since the magnitude of the electromagnetic force is proportional to the magnetic field strength of the electromagnet 110, the magnitude of the current applied to the electromagnetic winding can be adjusted by using an adjustable DC power supply to adjust the resistance force acting on the molten metal flow in the center of the choke tube, change the flow rate of the molten metal in the water inlet 300, and improve the applicability of the electromagnetic control device.

[0040] Reference Figure 1 and Figure 2 The electromagnetic flow guide mechanism 200 includes an electromagnetic vortex component 210 and a baffle rod 220 arranged inside the water port 300. The electromagnetic vortex component 210 is arranged on the radial outside of the water port 300, the baffle rod 220 is arranged inside the water port 300 and the baffle rod 220 is coaxially fixedly connected to the water port 300, and the baffle rod 220 is located on the side of the electromagnetic deceleration mechanism 100 close to the electromagnetic vortex component 210.

[0041] By utilizing the electromagnetic swirling flow component 210 to form a rotating magnetic field in the water nozzle 300, the molten metal is affected by the rotating magnetic field when flowing through the rotating magnetic field area, generating a rotating force to rotate; by arranging a flow blocking rod 220 inside the water nozzle 300, the structure inside the water nozzle 300 is changed, so that the flow channel of the molten metal is annular, thereby cooperating with the electromagnetic deceleration mechanism 100 to reduce the flow velocity of the molten metal, slowing down the flow velocity of the molten metal in the rotating magnetic field area, extending the time that the rotating magnetic field acts on the molten metal, and improving the utilization rate of the rotating magnetic field.

[0042] Reference Figure 2 and Figure 3 An air inlet 330 is provided on the side wall of the nozzle 300, a connecting pipe 430 is provided inside the nozzle 300, the blocking rod 220 is hollow, one end of the connecting pipe 430 is connected to the air inlet 330, and the other end of the connecting pipe 430 is connected to the inside of the blocking rod 220. A plurality of air outlet holes 221 are provided on the side wall of the blocking rod 220 near the molten metal outlet 320, and the plurality of air outlet holes 221 are arranged one by one corresponding to the plurality of molten metal outlets 320, and the air outlet direction of the air outlet holes 221 is collinear with the outflow direction of the corresponding molten metal outlet 320.

[0043] Reference Figure 1 and Figure 2 The gas flow guiding mechanism 400 includes an air pump 410, which is connected to the inside of the baffle rod 220 through a heat exchange coil 420. The heat exchange coil 420 is located below the molten metal tundish, one end of the heat exchange coil 420 is connected to the air pump 410, and the other end of the heat exchange coil 420 is connected to the inside of the baffle rod 220. The air pump 410 is used to pump gas into the baffle rod 220, and the air flows out from the multiple air outlets 221 through the air channel inside the baffle rod 220, thereby enhancing the swirl of the molten metal in the water inlet 300, improving the stability of the molten metal outflow, and making the molten metal more uniformly injected from the multiple molten metal outlets 320 in the horizontal direction; in addition, after the horizontally flowing gas enters the crystallizer, the gas forms bubbles in the molten metal, and the upward movement of the bubbles drives the flow of the molten metal, thereby enhancing the stirring effect of the molten metal, helping to improve the temperature and composition uniformity of the molten metal, and reducing the temperature and concentration gradient in the molten metal.

[0044] The heat exchange coil 420 is located below the molten metal ladle where the temperature is relatively high. The heat exchange coil 420 is used to heat the gas pumped into the baffle rod 220 by the air pump 410, thereby reducing the possibility that the low temperature of the gas flowing out of the baffle rod 220 will affect the crystallization of the molten metal.

[0045] In addition, the heat exchange coil 420 is connected to the air inlet 330 opened on the side wall of the water inlet 300. When the water inlet 300 needs to be replaced, it is only necessary to separate the heat exchange coil 420 from the air inlet 330, thereby improving the convenience of replacing the water inlet 300.

[0046] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An electromagnetic control device for continuous casting of copper-chromium-zirconium alloy, characterized in that: The electromagnetic deceleration mechanism (100) and the electromagnetic flow guiding mechanism (200) are both arranged on the radially outer side of a nozzle (300); the electromagnetic deceleration mechanism (100) is used to reduce the flow velocity of the molten metal in the nozzle (300); the electromagnetic flow guiding mechanism (200) is used to adjust the flow mode of the molten metal in the nozzle (300); the electromagnetic deceleration mechanism (100) is located on a side of the electromagnetic flow guiding mechanism (200) away from a molten metal outlet (320) of the nozzle (300); The electromagnetic flow guiding mechanism (200) comprises an electromagnetic vortex component (210) and a flow blocking rod (220) arranged inside a water port (300); the electromagnetic vortex component (210) is arranged radially outside the water port (300); the flow blocking rod (220) is arranged inside the water port (300) and the flow blocking rod (220) is coaxially fixedly connected to the water port (300) and is used to change the structure inside the water port so that the flow channel of the molten metal is annular; the flow blocking rod (220) is located on a side of the electromagnetic deceleration mechanism (100) close to the electromagnetic vortex component (210); The molten metal outlet (320) of the nozzle (300) is provided on the side wall of the nozzle (300), a plurality of the molten metal outlets (320) are provided, and the plurality of the molten metal outlets (320) are arranged at equal intervals along the circumference of the nozzle (300), and the outflow direction of the molten metal outlets (320) is parallel to the tangent direction of the inner circumference of the nozzle (300); The electromagnetic control device further comprises a gas flow guiding mechanism (400), wherein the flow blocking rod (220) is hollow, and a plurality of gas outlet holes (221) are provided on a side wall of the flow blocking rod (220) close to the molten metal outlet (320), wherein the plurality of gas outlet holes (221) are arranged in a one-to-one correspondence with the plurality of molten metal outlets (320), and the gas outlet directions of the gas outlet holes (221) are collinear with the outflow directions of the corresponding molten metal outlets (320), and the gas flow guiding mechanism (400) comprises an air pump (410), and the air pump (410) is connected to the inside of the flow blocking rod (220).

2. The electromagnetic control device for continuous casting of copper-chromium-zirconium alloy according to claim 1, characterized in that: The electromagnetic deceleration mechanism (100) comprises an electromagnet (110) and a direct current power supply. An annular groove is evenly provided on the inner hole wall of the water outlet (300). The electromagnet (110) is a two-pole electromagnet (110). The electromagnet (110) is arranged on both sides of the radial outer side of the water outlet (300). The NS pole surfaces of the electromagnet (110) are arranged opposite to each other and the center line of the NS pole surface intersects the axis of the water outlet (300) at right angles.

3. The electromagnetic control device for continuous casting of copper-chromium-zirconium alloy according to claim 2, characterized in that: The DC power supply is an adjustable DC power supply.

4. The electromagnetic control device for continuous casting of copper-chromium-zirconium alloy according to claim 1, characterized in that: The air pump (410) is connected to a heat exchange coil (420), the heat exchange coil (420) is located below the molten metal tundish, one end of the heat exchange coil (420) is connected to the air pump (410), and the other end of the heat exchange coil (420) is connected to the interior of the baffle rod (220).

5. The electromagnetic control device for continuous casting of copper-chromium-zirconium alloy according to claim 4, characterized in that: An air inlet (330) is provided on the side wall of the water inlet (300), a connecting pipe (430) is provided in the water inlet (300), one end of the connecting pipe (430) is connected to the air inlet (330), the other end of the connecting pipe (430) is connected to the inside of the baffle rod (220), and the heat exchange coil (420) is connected to the air inlet (330).

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