Water-cooled material collecting assembly and vacuum rapid condensing furnace using the same

Abstract

The present application relates to a kind of water-cooled material receiving assembly and the vacuum rapid condenser of its application, belong to vacuum rapid condenser technical field.Water-cooled material receiving assembly includes first temperature control zone, crushing device, second temperature control zone and third temperature control zone in turn along material falling direction, and each temperature control zone is respectively provided with first temperature sensor, second temperature sensor and third temperature sensor.Temperature acquisition and control unit is electrically connected with each temperature sensor and the cooling water flow regulating valve of each cooling section, and has preset temperature control target value, the temperature control target value includes the target temperature interval of each temperature control zone and the target temperature difference range between adjacent cooling section, temperature acquisition and control unit real-time acquisition temperature signal of each temperature sensor and compare, according to the control signal of comparison result to each flow regulating valve, adjust the cooling water flow of each cooling section.The present application guarantees the uniform cooling of casting piece material receiving process, improves product quality, reduces the thermal deformation of station appliance.

Description

Technical Field

[0001] This invention belongs to the field of vacuum rapid solidification furnace technology, specifically relating to a water-cooled material receiving component and its application in a vacuum rapid solidification furnace, which is particularly suitable for the production of NdFeB rare earth permanent magnet alloy rapid solidification thin strips. Background Technology

[0002] The strip casting furnace is currently the core equipment for producing NdFeB rare earth permanent magnet alloy strips. Its working principle is as follows: Under vacuum or a protective atmosphere, the metal raw material is melted by induction heating. The molten metal flows through an tundish to the surface of a high-speed rotating quenching roller, where it is rapidly cooled and solidified into a rapidly solidified sheet with a thickness of 0.2–0.4 mm. The sheet is then broken and collected in a receiving device.

[0003] The existing cooling devices for collecting materials in vacuum rapid condensing furnaces have the following main shortcomings: First, in most existing technologies, there is a lack of effective pre-cooling methods after the casting falls from the quenching rollers and before it enters the dedicated cooling drum; at most, it is as described in the prior art attached to this specification. Figure 1 As shown, the hopper of the feed section from the quench roller 10 to the crushing device 30 is modified to a water-cooled wall. Because the castings fall very fast, they stay in the limited water-cooled area for a very short time, often resulting in insufficient cooling. This causes the temperature of the castings entering the cooling drum to remain too high. The matching cooling drum needs a larger heat exchange area and a higher temperature resistance rating, which increases manufacturing costs, increases the workload of the cooling drum, and shortens its service life. If other different types of cooling facilities are added upstream of the cooling drum, even if the production site space meets the requirements, the equipment modification is still difficult.

[0004] Secondly, uneven cooling leads to unstable casting quality. The NdFeB castings falling from the quench rollers are at a high temperature, approximately 700°C. If cooling is insufficient or uneven during the receiving process, thin sheets are prone to sticking together and clumping, affecting subsequent crushing processes and the final magnet performance. Even though existing technologies employ sufficient pre-cooling measures before the castings enter the cooling drum, these measures are independent and lack real-time monitoring and coordinated control of the casting temperature, making it difficult to guarantee the cooling effect. Because process parameters such as casting temperature, quench roller speed, and casting thickness fluctuate, the casting temperature entering the receiving stage is not constant. Existing equipment often uses fixed values ​​or manual adjustments for parameters such as cooling water flow rate and temperature, failing to automatically adjust according to the actual casting temperature, leading to frequent problems of over- or under-cooling.

[0005] Third, the lack of temperature gradient control between different cooling measures in the receiving stage means that if the cooling rate of each cooling section differs too much or the temperature difference is not properly controlled during the gradual cooling process of the casting, thermal stress will be generated inside the casting, leading to uneven microstructure and affecting magnetic properties. At the same time, excessive temperature gradients can also cause varying degrees of thermal deformation in different components of the receiving assembly, affecting the accuracy and service life of the equipment. Summary of the Invention

[0006] To address the problems of insufficient pre-cooling and uneven cooling mentioned in the background art, the present invention provides a water-cooled material receiving component and its application in a vacuum rapid solidification furnace.

[0007] The specific technical solution adopted in this invention is as follows: A water-cooled material receiving assembly, disposed below the quench roller of a vacuum rapid solidification furnace, comprises, in sequence along the material falling direction: The first temperature control zone is located directly below the quenching roller and is used to receive the castings falling from the quenching roller and to implement the first cooling. The first temperature control zone is equipped with a first temperature sensor. The crushing device is located downstream of the first temperature control zone and is used to crush the castings. The second temperature control zone is located below the crushing device and is used to receive the castings after they have been crushed by the crushing device and to implement the second cooling. The second temperature control zone is equipped with a second temperature sensor. The third temperature control zone is located downstream of the second temperature control zone and is used to receive the castings output from the second temperature control zone and implement the third cooling. The third temperature control zone is equipped with a third temperature sensor. The temperature acquisition and control unit is electrically connected to each temperature sensor and the cooling water flow regulating valve of each cooling section, and stores preset temperature control target values. The temperature control target values ​​include the target temperature range of each temperature control zone and the target temperature difference range between adjacent cooling sections. The temperature acquisition and control unit acquires the temperature signals of each temperature sensor in real time, compares the acquired actual temperature with the corresponding target temperature range, calculates the actual temperature difference between adjacent cooling sections, and sends control signals to the flow regulating valves of each cooling water channel according to the comparison results to adjust the cooling water flow of each cooling section, so that the actual temperature of each cooling section approaches the target temperature range and the temperature difference between adjacent cooling sections is controlled within the target temperature difference range.

[0008] Furthermore, both the first and second temperature control zones are water-cooled buffer discharge chambers, which are double-layered water-cooled structures with cavities and cooling water channels inside.

[0009] Furthermore, the second temperature control zone extends below the first temperature control zone.

[0010] Furthermore, at least one first water-cooled guide plate is inclinedly arranged in the first temperature control zone, and a cooling water channel is provided inside.

[0011] Furthermore, a first discharge guide plate is also inclinedly arranged in the first temperature control zone to receive the castings sliding down from the first water-cooled guide plate and guide them to the inlet of the crushing device.

[0012] Furthermore, at least one second water-cooled guide plate is inclinedly arranged in the second temperature control zone, and a cooling water channel is provided inside.

[0013] Furthermore, the third temperature control zone is a cooling drum, and a third cooling water channel is provided inside the drum wall.

[0014] Furthermore, the first temperature sensor, the second temperature sensor, and the third temperature sensor are selected from non-contact infrared temperature sensors or contact thermocouple sensors.

[0015] Furthermore, the temperature fluctuation range of each target temperature range is controlled within the range of 50 to 100°C, and the target temperature difference between adjacent cooling sections is within the range of 30 to 120°C.

[0016] This invention also protects a vacuum rapid solidification furnace, including the water-cooled receiving assembly described above. Beneficial effects

[0017] First, based on the existing equipment layout, this invention effectively solves the problem of insufficient cooling of the castings before they enter the cooling drum through ingenious technical modifications. By constructing a first temperature control zone upstream of the crushing device and a second temperature control zone downstream of the crushing device, the castings undergo pre-cooling in two cooling sections before reaching the cooling drum, significantly reducing the temperature of the castings entering the cooling drum. This reduces the manufacturing cost of the cooling drum, eliminates the need for excessively large heat exchange areas and excessively high temperature resistance levels, reduces its workload, and extends its service life.

[0018] More importantly, this invention achieves precise control of the casting cooling process. By setting temperature sensors in three cooling sections, the temperature changes of the casting are monitored in real time throughout the entire material collection process, providing a data basis for dynamic adjustment of cooling parameters. By distributing and controlling the temperature fluctuation range of each cooling section, the casting is kept within a suitable temperature range in each cooling section, reducing microstructure defects caused by excessively fast or slow cooling. By controlling the temperature difference between adjacent cooling sections, thermal stress caused by excessive temperature difference is avoided, thereby ensuring the uniformity of the microstructure and magnetic properties of the casting.

[0019] Moreover, each component (first temperature control zone, second temperature control zone, and third temperature control zone) of the material receiving assembly of the present invention is subjected to different degrees of heat load during operation. By precisely controlling the temperature of each cooling section, the temperature rise of each component is limited to a reasonable range, reducing thermal deformation caused by temperature fluctuations and ensuring the long-term operating accuracy and service life of the equipment. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a water-cooled material receiving assembly in the prior art.

[0021] Figure 2 This is a schematic diagram of the water-cooled material receiving assembly according to an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the temperature acquisition and control unit according to an embodiment of the present invention.

[0023] The components represented by the reference numerals in the diagram are: 10. Quick cooling roller; 20. First temperature control zone; 21. First water-cooled guide plate; 22. First temperature sensor; 23. First discharge guide plate; 30. Crushing device; 40. Second temperature control zone; 41. Second water-cooled guide plate; 42. Second temperature sensor; 50. Third temperature control zone; 51. Second discharge guide plate; 52. Third temperature sensor. Detailed Implementation

[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Example 1

[0025] like Figure 2 As shown, the water-cooled material receiving assembly of this embodiment is located below the quenching roller 10 of the vacuum condensing furnace.

[0026] In this embodiment, three temperature control zones are formed along the direction of material falling.

[0027] First, the first temperature control zone 20 is located directly below the quench roller 10 to receive the castings falling from the quench roller 10 and to implement the first cooling.

[0028] In this embodiment, the first temperature control zone 20 is a water-cooled buffer discharge chamber. The water-cooled buffer discharge chamber is a double-layer water-cooled structure with a cavity. It has a cooling water channel inside. The inlet and outlet of the cooling water channel are connected to an external water-cooling circulation device. The circulating water cooling pipeline is set as prior art and is not shown in the figure.

[0029] In this embodiment, a first water-cooled guide plate 21 is inclinedly arranged in the first temperature control zone 20. The first water-cooled guide plate 21 has a cooling water channel inside, and the angle between the first water-cooled guide plate 21 and the horizontal plane is 30° to 60°.

[0030] Although only one first water-cooled guide plate 21 is provided in this embodiment, multiple first water-cooled guide plates 21 can be provided as needed. In equipment modification, the number of first water-cooled guide plates 21 can also be determined based on the available space for equipment modification.

[0031] In this embodiment, a first discharge guide plate 23 is also inclinedly arranged below the first water-cooled guide plate 21 on the opposite side of the first temperature control zone 20. It is used to receive the castings that slide down from the first water-cooled guide plate 21 and guide them to the inlet of the crushing device 30. The first discharge guide plate 23 is mainly used for guiding materials. It can be provided with a cooling water channel like the first water-cooled guide plate 21. When the size is small, a cooling water channel may not be provided, but during installation, its connecting end should be in full contact with the water-cooled wall of the water-cooled buffer discharge chamber.

[0032] The crushing device 30 is located downstream of the first temperature control zone 20 and is used to crush the castings. The crushing device 30 can be a hammer crusher or a roller crusher, similar to existing technologies, and the crushing level can be selected as primary or secondary.

[0033] In this embodiment, a temperature sensor is provided in each temperature control zone. Specifically, the first temperature control zone 20 is provided with a first temperature sensor 22, which is used to collect the temperature of the casting after the first cooling. The first temperature sensor 22 is a non-contact infrared temperature sensor, which is installed on the support frame below the first water-cooled guide plate 21 and faces the casting flow on the first discharge guide plate 23. It is used to measure the temperature of the surface of the casting after the first cooling in a non-contact manner. The accuracy of the data is ensured by statistically averaging the multi-point sampling values ​​of the continuous material flow within a set time window. During the operation, the first water-cooled guide plate 21 plays an auxiliary protective role.

[0034] The second temperature control zone 40 is located below the crushing device 30 and is used to receive the castings after they have been crushed by the crushing device 30 and to implement a second cooling.

[0035] In this embodiment, the second temperature control zone 40 extends below the first temperature control zone 20 and is also a water-cooled buffer material discharge chamber. It adopts a double-layer water-cooled structure with a cavity and has cooling water channels inside. Multiple second water-cooled guide plates 41 are inclinedly arranged inside the second temperature control zone 40, and the interior of the second water-cooled guide plates 41 has cooling water channels.

[0036] In this embodiment, based on the available space, the second temperature control zone 40 is lengthened and multiple second water-cooled guide plates 41 are added and arranged in an alternating manner to increase the cooling path of the casting. A discharge cylinder is provided at the outlet to guide the casting to the cooling roller of the next temperature control zone.

[0037] The second temperature control zone 40 is equipped with a second temperature sensor 42, which is used to collect the temperature of the casting after the second cooling. The second temperature sensor 42 is located at the discharge cylinder of the second temperature control zone 40, facing the casting flow from the discharge cylinder.

[0038] As mentioned above, the third temperature control zone 50 in this embodiment takes the form of a cooling drum and is located downstream of the second temperature control zone 40. It receives the castings output from the second temperature control zone 40 and performs third cooling.

[0039] Compared to the water-cooled buffer discharge chamber, the cooling drum is a more complex motion cooling device that provides the main dynamic cooling for the casting. It has a hollow drum structure with cooling water channels inside the drum wall. The drum is driven by a drive motor to rotate. The interior of the cooling drum is equipped with spiral guide blades, which are used to push the casting along the axial direction and cool it evenly when the drum rotates. The casting can flow in one direction or in two directions inside the cooling drum.

[0040] In this embodiment, a third temperature sensor 52 is provided at the discharge end of the cooling drum to collect the temperature of the casting after the third cooling. For this purpose, a second discharge guide plate 51 is added at the discharge end of the cooling drum, which is specifically used to install a contact thermocouple sensor. The second discharge guide plate 51 is made of calcium silicate board with low thermal conductivity instead of metal plate, and is inclined with its upper edge close to the lower edge of the discharge port. It is used to receive the casting discharged from the discharge port and guide it to slide down to the downstream receiving device (not shown in the figure).

[0041] In this embodiment, the third temperature sensor 52 is replaced with a contact thermocouple sensor according to the temperature measurement environment. The temperature probe is embedded in the second discharge guide plate 51. When the casting sheet slides down the second discharge guide plate 51, it directly contacts the temperature probe, thereby measuring the temperature of the casting sheet.

[0042] Of course, in other embodiments, the third temperature sensor 52 can also be a non-contact infrared temperature sensor. In this case, the sensor can be installed on the outside of the discharge end of the third temperature control zone 50, and the lens can be aimed at the material flow at the discharge port or, if a second discharge guide plate 51 is added, aimed at the casting plate on the second discharge guide plate 51.

[0043] In this embodiment, the temperature acquisition and control unit is integrated into the overall equipment control system, and is electrically connected to the first temperature sensor 22, the second temperature sensor 42, the third temperature sensor 52, and the flow regulating valves of each cooling water channel, respectively. Figure 3As shown, it includes: The temperature acquisition module is used to acquire temperature signals from each temperature sensor in real time. The storage module is used to store preset temperature control target values, which include a first target temperature range of the first temperature control zone 20, a second target temperature range of the second temperature control zone 40, a third target temperature range of the third temperature control zone 50, and a target temperature difference range between adjacent cooling sections. The calculation module is used to compare the collected actual temperature with the corresponding target temperature range and calculate the actual temperature difference between adjacent cooling sections. The control module is used to send control signals to each flow regulating valve based on the comparison results of the calculation module.

[0044] In this embodiment, the temperature fluctuation range of each target temperature range is controlled within the range of 50–100°C. Specifically, the first target temperature range is 520–600°C with a fluctuation range of 80°C, the second target temperature range is 380–450°C with a fluctuation range of 70°C, and the third target temperature range is 180–240°C with a fluctuation range of 60°C. The target temperature difference range between adjacent cooling sections is 30–120°C. Specifically, the target temperature difference range between the first temperature control zone 20 and the second temperature control zone 40 is 70–100°C, and the target temperature difference range between the second temperature control zone 40 and the third temperature control zone 50 is 50–80°C.

[0045] The control module uses a PID control algorithm to adjust the cooling water flow rate. When the actual temperature is higher than the upper limit of the target temperature range, the cooling water flow rate of the corresponding cooling water channel is increased. When the actual temperature is lower than the lower limit of the target temperature range, the cooling water flow rate of the corresponding cooling water channel is decreased. When the actual temperature is within the target temperature range, the current cooling water flow rate is maintained. When the actual temperature difference between adjacent cooling sections exceeds the target temperature difference range, the control module prioritizes adjusting the cooling parameters of the upstream cooling section.

[0046] It should be noted that the aforementioned target temperature ranges and temperature difference ranges are not fixed. In actual production, operators can preset multiple sets of different temperature control target values ​​in the storage module of the temperature acquisition and control unit according to the different product attributes of the target casting (including but not limited to casting grade, thickness specifications, compositional differences, and final magnetic performance requirements). When producing different products, simply calling the corresponding target parameter set will match the temperature control range of each temperature control zone with the cooling process requirements of the current product. For example, for product grades with high coercivity requirements, the fluctuation width of each target temperature range can be appropriately narrowed and the target temperature difference between adjacent temperature control zones can be reduced to decrease the impact of thermal stress on the microstructure; for castings with thinner thickness and smaller heat capacity, the target temperature of each section can be appropriately increased while ensuring uniform cooling to avoid over-cooling. Based on this, the temperature acquisition and control unit of the present invention also presets a normal rotation speed range and a normal casting temperature range corresponding to different product attributes, and receives signals from the quench roll speed sensor and the casting temperature sensor to perform parameter correlation verification during production. When the acquired rotation speed or casting temperature exceeds the corresponding normal range and the temperature sensor readings of each temperature control zone deviate in the opposite direction to the rotation speed / casting temperature or the readings do not change significantly, a temperature sensor drift or fault prompt is generated and the system automatically switches to emergency control mode temporarily. The cooling water flow is adjusted with reference to the rotation speed and casting temperature until the temperature sensor signal returns to normal.

[0047] In addition, each of the three temperature control zones in this embodiment is equipped with a wall temperature acquisition sensor, and the data is also received by the aforementioned temperature acquisition module. In the batch start-up preheating mode, when the equipment starts from a stopped state or when batch switching begins, the control module first automatically calculates the cooling water flow rate increase slope of each cooling section based on the deviation between the initial wall temperature and the target temperature range. When the initial wall temperature is significantly lower than the normal production value, for example, more than 50°C lower than the lower limit of the target temperature range, the control module gradually increases the cooling water flow rate of each cooling section in a slow-increase manner, so that the wall temperature of the temperature control zone slowly rises to the normal production range at a set heating rate, which does not exceed 15°C / min, to avoid microstructural defects caused by the rapid cooling of the first batch of castings due to a sudden increase in cooling water flow. When the initial wall temperature is close to the normal production value, the control module starts directly according to the normal parameters. Meanwhile, the cooling water status is also monitored by the aforementioned temperature acquisition and control unit, including real-time monitoring of the cooling water inlet pressure, inlet temperature, and return temperature of each cooling section. When the cooling water inlet pressure of any cooling section is detected to be lower than the set threshold, or the inlet temperature is higher than the set threshold, or the difference between the return temperature and the inlet temperature exceeds the normal range, the control module judges it as an abnormal cooling water supply and increases the cooling water flow of other cooling sections outside the abnormal section to share the cooling load. At the same time, it sends an audible and visual alarm signal to the equipment control system to prompt the operator to check the cooling water supply system. When the cooling water return temperature continues to rise and exceeds the set warning value, the control module sends a deceleration or suspension request to the crushing device and the quenching roller through the equipment control system. The equipment control system executes the request after making a comprehensive judgment based on the overall machine operating status to reduce the falling speed of the casting and reduce the heat load input. Example 2

[0048] A vacuum rapid solidification furnace includes a furnace body, a melting crucible disposed within the furnace body, an intermediate ladle, a quenching roller 10, and the water-cooled receiving assembly described in Example 1.

[0049] During operation, molten metal flows through the tundish to the surface of the quench roller 10, where it is rapidly cooled to form a quick-solidifying sheet. The sheet falls from the quench roller 10 into the first temperature control zone 20, where it slides down the first water-cooled guide plate 21 and is guided by the first discharge guide plate 23, completing the first cooling process. The first temperature sensor 22 collects the casting temperature and feeds it back to the temperature acquisition and control unit. The casting then enters the crushing device 30 for crushing. The crushed fragments fall into the water-cooled buffer discharge chamber of the second temperature control zone 40, where they slide down along multiple staggered second water-cooled guide plates 41, completing the second cooling process. The second temperature sensor 42 collects the casting temperature. Finally, the casting enters the cooling drum of the third temperature control zone 50 for the third cooling process and is discharged from the discharge end, sliding down the second discharge guide plate 51. The third temperature sensor 52 collects the final discharge temperature. The temperature acquisition and control unit adjusts the cooling water flow rate of each cooling section in real time based on the three temperature data points, ensuring that the temperature of each section remains within the target range.

[0050] In summary, this invention, based on existing equipment layout, enhances pre-cooling of the casting sheets before they reach the cooling drum through ingenious technical improvements. This significantly reduces the temperature of the casting sheets entering the cooling drum, lowers the technical requirements for the cooling drum, and extends its service life. More importantly, by monitoring the temperature changes of the casting sheets in real time throughout the entire material collection process and distributing and controlling the temperature fluctuation range of each cooling section, this invention ensures the uniformity of the microstructure and magnetic properties of the casting sheets. The casting sheet discharge temperature using this invention can be stabilized within the range of 200–230°C, with small temperature fluctuations within batches. There is no adhesion or clumping on the surface of the casting sheets, the columnar crystal structure of the product is uniform, and the α-Fe precipitate content can reach below 2%. This demonstrates that this invention, through uniform cooling throughout the casting sheet collection process, can effectively address microstructure defects caused by insufficient cooling or excessive temperature differences. Finally, each component (first temperature control zone, second temperature control zone, and third temperature control zone) of the material receiving assembly of the present invention is subjected to different degrees of heat load during operation. By precisely controlling the temperature of each cooling section, the temperature rise of each component is limited to a reasonable range, reducing thermal deformation caused by temperature fluctuations and ensuring the long-term operating accuracy and service life of the equipment.

[0051] The above description is merely a preferred embodiment of the present invention. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the protection scope of the present invention.

Claims

1. A water-cooled material receiving assembly, disposed below the quench roller (10) of a vacuum rapid solidification furnace, characterized in that, In the order of material falling, including: The first temperature control zone (20) is located directly below the quench roller (10) and is used to receive the castings falling from the quench roller (10) and implement the first cooling. The first temperature control zone (20) is equipped with a first temperature sensor (22). The crushing device (30) is located downstream of the first temperature control zone (20) and is used to crush the castings; The second temperature control zone (40) is located below the crushing device (30) and is used to receive the castings after being crushed by the crushing device (30) and to implement the second cooling. The second temperature control zone (40) is equipped with a second temperature sensor (42). The third temperature control zone (50) is located downstream of the second temperature control zone (40) and is used to receive the castings output from the second temperature control zone (40) and implement the third cooling. The third temperature control zone (50) is equipped with a third temperature sensor (52). The temperature acquisition and control unit is electrically connected to each temperature sensor and the cooling water flow regulating valve of each cooling section, and stores preset temperature control target values. The temperature control target values ​​include the target temperature range of each temperature control zone and the target temperature difference range between adjacent cooling sections. The temperature acquisition and control unit acquires the temperature signals of each temperature sensor in real time, compares the acquired actual temperature with the corresponding target temperature range, calculates the actual temperature difference between adjacent cooling sections, and sends control signals to the flow regulating valves of each cooling water channel according to the comparison results to adjust the cooling water flow of each cooling section, so that the actual temperature of each cooling section approaches the target temperature range and the temperature difference between adjacent cooling sections is controlled within the target temperature difference range.

2. The water-cooled material receiving assembly according to claim 1, characterized in that, The first temperature control zone (20) and the second temperature control zone (40) are both water-cooled buffer discharge chambers. The water-cooled buffer discharge chamber is a double-layer water-cooled structure with a cavity, and a cooling water channel is provided inside.

3. The water-cooled material receiving assembly according to claim 2, characterized in that, The second temperature control zone (40) extends below the first temperature control zone (20).

4. The water-cooled material receiving assembly according to claim 2, characterized in that, At least one first water-cooled guide plate (21) is inclinedly arranged in the first temperature control zone (20), and a cooling water channel is provided inside.

5. The water-cooled material receiving assembly according to claim 4, characterized in that, The first temperature control zone (20) is also provided with a first discharge guide plate (23) at an inclination, which is used to receive the castings that slide down from the first water-cooled guide plate (21) and guide them to the inlet of the crushing device (30).

6. The water-cooled material receiving assembly according to claim 2, characterized in that, At least one second water-cooled guide plate (41) is inclinedly arranged in the second temperature control zone (40), and a cooling water channel is provided inside.

7. The water-cooled material receiving assembly according to claim 1, characterized in that, The third temperature control zone (50) is a cooling drum, and a third cooling water channel is provided inside the drum wall.

8. The water-cooled receiving assembly according to any one of claims 1-7, characterized in that, The first temperature sensor (22), the second temperature sensor (42), and the third temperature sensor are selected from non-contact infrared temperature sensors or contact thermocouple sensors.

9. The water-cooled material receiving assembly according to claim 8, characterized in that, The temperature fluctuation range of each target temperature range is controlled within the range of 50 to 100℃, and the target temperature difference between adjacent cooling sections is within the range of 30 to 120℃.

10. A vacuum rapid solidification furnace, comprising the water-cooled receiving assembly as described in any one of claims 1 to 9.

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