Centrifugal casting device
By moving the casting runner and baffle in the centrifugal casting device relative to each other, the problem of difficulty in casting long-sized tubular targets is solved, and the thickness uniformity and magnetron sputtering uniformity of the tubular targets are achieved, and the pores and oxygen content are reduced.
Patent Information
- Application Number
- CN202422370278.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing casting molds are difficult to meet the casting requirements of long-sized tubular targets, resulting in uneven sputtering at the splicing during the sputtering coating process.
Centrifugal casting device is adopted, including casting runners, rotating mechanisms and baffles. The metal melt is distributed on the inner wall of the centrifugal casting mold through centrifugal force, and the metal melt is scraped by the relative movement of the baffle and the inner wall of the mold to control the thickness uniformity of the tubular target material, and achieve the increase in length and consistency of the thickness of the tubular target material.
The thickness uniformity of the tubular target material and the uniformity of magnetron sputtering are improved, the pores and oxygen content are reduced, and the casting needs of long-sized tubular target material are met.
Smart Images
Figure CN223145950U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of casting devices, and particularly relates to a centrifugal casting device. Background Art
[0002] Rare earth elements terbium and dysprosium are deposited on the surface of neodymium iron boron (NdFeB) rare earth permanent magnet materials by magnetron sputtering, and then diffuse into the magnet interior through grain boundary diffusion, which can significantly improve the coercivity of the magnet. This technology is a preparation process for high-performance rare earth permanent magnet materials developed in recent years.
[0003] In order to reduce the consumption of heavy rare earth metals terbium and dysprosium and improve the utilization efficiency of the target, the targets used in the magnetron sputtering coating process have evolved from planar targets to rotating targets. This not only reduces the production cost of permanent magnet materials but also improves the resource utilization rate of the industry.
[0004] The main preparation methods of rotating targets include the casting method, powder metallurgy method, and rotary spraying method. The powder metallurgy method and rotary spraying method usually use rare earth metal powders as raw materials. During the operation, due to the high activity of rare earth metals, the powders are prone to oxidation and even combustion. Therefore, there are great risks in the preparation process, and the tubular targets prepared by these methods have a relatively low overall density and contain more pores inside, which will affect the subsequent coating quality. In contrast, the casting method uses metal blocks as raw materials and operates in a vacuum or inert gas protection environment. This method not only has higher safety but also has a lower oxygen content in the finished product. Therefore, it has become the main method for preparing rotating targets. However, the casting method is limited by the size of the melting furnace and the difficulty of mold demoulding. The existing casting molds are difficult to meet the casting requirements of long-specification tubular targets. Currently, most of them first cast multiple short-segment rare earth tubular targets and then obtain long-specification tubular targets by splicing short-segment rare earth tubular targets. However, this method is prone to problems such as uneven sputtering at the splicing joints during the sputtering coating process. Summary of the Utility Model
[0005] The purpose of this application is to provide a centrifugal casting device, aiming to solve the problem that existing casting molds are difficult to meet the casting requirements of long-specification tubular targets.
[0006] To achieve the above application purpose, the technical solution adopted in this application is as follows:
[0007] The present application provides a centrifugal casting device, which includes a casting runner, a rotating mechanism, a centrifugal casting mold and a baffle. The centrifugal casting mold is a hollow cylindrical structure. The rotating mechanism is used to drive the centrifugal casting mold to rotate. The casting runner is provided with a casting port. The casting port and the baffle are arranged at intervals inside the centrifugal casting mold, and the baffle is arranged at an interval from the inner wall of the centrifugal casting mold. The centrifugal casting mold can be displaced axially relative to the casting port and the baffle.
[0008] Optionally, the centrifugal casting device further includes a track, the track extends in the horizontal direction, the rotating mechanism is disposed on the track in a horizontally displaceable manner, the centrifugal casting mold is located on the rotating mechanism, and the axis of the centrifugal casting mold is parallel to the track.
[0009] Optionally, the rotating mechanism includes a horizontal traveling mechanism, rollers and a motor. The horizontal traveling mechanism is disposed on the track in a horizontally displaceable manner. The motor and the rollers are disposed on the horizontal traveling mechanism. The motor is used to drive the rollers to rotate, and the outer wall of the centrifugal casting mold abuts against the rollers.
[0010] Optionally, the centrifugal casting device further includes a baffle support. First openings and second openings are respectively provided at two ends of the centrifugal casting mold. The casting runner extends into the centrifugal casting mold from the first opening, and the baffle support extends into the centrifugal casting mold from the second opening and connects the baffle.
[0011] Optionally, the centrifugal casting device further includes a baffle adjusting device, which is used to adjust the distance between the baffle and the inner wall of the centrifugal casting mold.
[0012] Optionally, the baffle is disposed above the inner cavity bottom wall of the centrifugal casting mold. The baffle is perpendicular to the inner cavity bottom wall of the centrifugal casting mold. The baffle and the casting port are arranged at intervals along the axis of the centrifugal casting mold. The baffle extends along the axis of the centrifugal casting mold, and in the direction from the baffle to the casting port, the baffle is inclined towards the bottom wall rotation direction of the centrifugal casting mold, and the included angle between the baffle and the axis of the centrifugal casting mold is 30° to 60°.
[0013] Optionally, the casting runner is a groove-shaped structure. A heat insulation layer is provided on the outer wall of the casting runner, and an electric heating device is provided at the bottom of the casting runner.
[0014] Optionally, the centrifugal casting device further includes a funnel. The funnel is connected to one end of the casting runner outside the centrifugal casting mold. The casting runner is inclined downward in the direction from the funnel to the centrifugal casting mold.
[0015] Optionally, the centrifugal casting device further includes a melting chamber and an intermediate frequency furnace. The intermediate frequency furnace and the funnel are located in the melting chamber, and the funnel is located below the intermediate frequency furnace.
[0016] Optionally, the centrifugal casting device further includes a casting chamber which is adjacent to the melting chamber. The rotating mechanism, the centrifugal casting mold and the baffle are located in the casting chamber, and the casting runner extends from the melting chamber to the casting chamber.
[0017] Compared with the prior art, the present application has the following beneficial effects:
[0018] The centrifugal casting device provided by the present application uses a centrifugal casting mold as a mold for preparing a tubular target. During centrifugal casting, molten metal is introduced into the centrifugal casting mold through a casting port. The rotating mechanism drives the centrifugal casting mold to rotate, and the molten metal is distributed on the inner wall of the centrifugal casting mold by centrifugal force, which is beneficial to reducing the pores and oxygen content in the cast tubular target. During casting, the centrifugal casting mold axially displaces in a direction away from the casting runner, so as to increase the length of the cast tubular target. However, the increase in the length of the tubular target will increase the difficulty of controlling its thickness uniformity to a certain extent. In order to improve the thickness uniformity of the cast tubular target, a baffle is further provided in the centrifugal casting mold. The baffle is spaced from the inner wall of the centrifugal casting mold. While the centrifugal casting mold rotates, the relative movement between the baffle and the centrifugal casting mold will level the molten metal on the inner wall of the centrifugal casting mold to control the thickness of the cast tubular target. And with the axial displacement of the centrifugal casting mold, it can ensure the thickness consistency of each position of the cast tubular target and improve the uniformity of the tubular target for magnetron sputtering as a rotating target. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.
[0020] Figure 1 is a schematic structural diagram of a centrifugal casting device provided by an embodiment of the present application;
[0021] Figure 2 is a top view of the relative position of a centrifugal casting mold and a baffle provided by an embodiment of the present application.
[0022] Among them, the reference numerals in the drawings:
[0023] 1 - Centrifugal casting mold; 11, inner cavity bottom wall; 2 - Casting runner; 21, casting port; 3 - Baffle; 31, baffle support; 4 - Funnel; 5 - Medium-frequency furnace; 6 - Melting chamber; 7 - Track; 8 - Roller; 9, casting chamber. Detailed implementation manners
[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application clearer and more understandable, the following further details this application in conjunction with embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not used to limit this application.
[0025] The terms used in the embodiments of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The singular forms "a", "the" and "said" used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.
[0026] See Figure 1 As shown, an embodiment of this application provides a centrifugal casting device, including a casting runner 2, a rotating mechanism, a centrifugal casting mold 1 and a baffle 3. The centrifugal casting mold 1 is a hollow cylindrical structure. The rotating mechanism is used to drive the centrifugal casting mold 1 to rotate. The casting runner 2 is provided with a casting port 21. The casting port 21 and the baffle 3 are arranged at intervals inside the centrifugal casting mold 1, and the baffle 3 is arranged at an interval from the inner wall of the centrifugal casting mold 1; the centrifugal casting mold 1 can be displaced axially relative to the casting port 21 and the baffle 3 along the centrifugal casting mold 1.
[0027] In the centrifugal casting device, the casting runner 2, the centrifugal casting mold 1, and the baffle 3 are independent structures that do not interfere with each other during movement. During centrifugal casting, by moving the centrifugal casting mold 1, the casting port 21 of the casting runner 2 is inserted into the centrifugal casting mold 1, and molten metal is introduced into the centrifugal casting mold 1 through the casting port 21. The rotating mechanism drives the centrifugal casting mold 1 to rotate, and the molten metal is distributed on the inner wall of the centrifugal casting mold 1 by centrifugal force, which helps to reduce the porosity and oxygen content in the cast tubular target. During casting, the centrifugal casting mold 1 axially displaces in a direction away from the casting runner 2, thereby increasing the length of the cast tubular target. However, increasing the length of the tubular target will increase the difficulty of controlling its thickness uniformity to a certain extent. To improve the thickness uniformity of the cast tubular target, a baffle 3 is further provided in the centrifugal casting mold 1. The baffle 3 is spaced from the inner wall of the centrifugal casting mold 1. While the centrifugal casting mold 1 is rotating, the relative movement between the baffle 3 and the centrifugal casting mold 1 will level the molten metal on the inner wall of the centrifugal casting mold 1 to control the thickness of the cast tubular target. And as the centrifugal casting mold 1 axially displaces, it can ensure the thickness consistency of each position of the cast tubular target, improving the uniformity of the tubular target during magnetron sputtering as a rotating target.
[0028] In different embodiments, the relative displacement mode between the centrifugal casting mold 1, the casting port 21, and the baffle 3 can be Mode 1: The casting port 21 and the baffle 3 are fixed, and the centrifugal casting mold 1 is movably arranged; or Mode 2: The centrifugal casting mold 1 is fixed, and the casting port 21 and the baffle 3 are movably arranged.
[0029] Compared with Mode 2, in Mode 1, only the movement of the centrifugal casting mold 1 needs to be considered, and the setting difficulty is lower.
[0030] In an embodiment, the centrifugal casting device further includes a track 7. The track 7 extends in the horizontal direction. The rotating mechanism is horizontally displaceably arranged on the track 7. The centrifugal casting mold 1 is located on the rotating mechanism, and the axis of the centrifugal casting mold 1 is parallel to the track 7, that is, the axis of the centrifugal casting mold 1 is horizontally oriented.
[0031] Compared with other displacement modes, the method of setting the track 7 is beneficial to ensuring the stability and guiding accuracy of the movement of the centrifugal casting mold 1, avoiding the centrifugal casting mold 1 deviating from its axial direction during movement, facilitating the stable control of its movement speed, and further improving the uniformity of the casting amount at different positions in the centrifugal casting mold 1.
[0032] In an embodiment, the rotating mechanism includes a horizontal traveling mechanism (not shown), rollers 8, and a motor (not shown). The horizontal traveling mechanism is disposed on the track 7 in a horizontally displaceable manner. The motor and the rollers 8 are disposed on the horizontal traveling mechanism. The motor is used to drive the rollers 8 to rotate, and the outer wall of the centrifugal casting mold 1 abuts against the rollers 8.
[0033] By driving the rollers 8 to rotate through the motor, the rotation of the rollers 8 drives the centrifugal casting mold 1 to rotate through the frictional force between the rollers 8 and the centrifugal casting mold 1, which can achieve a relatively high rotation speed and ensure the stability of the centrifugal casting mold 1 during the rotation process.
[0034] The number of the rollers 8 is multiple. The multiple rollers 8 are spaced apart on both sides of the centrifugal casting mold 1 to provide sufficient frictional force to drive the centrifugal casting mold 1. A transmission mechanism is disposed between the motor and the single or multiple rollers 8. The transmission mechanism is not particularly limited and can adopt existing transmission structures such as gears, rotating shafts, chains, worm gears, etc.
[0035] The structure of the horizontal traveling mechanism is not particularly limited. Any existing structure that can drive the rotating mechanism to travel along the track 7 can be selected. In one embodiment, the horizontal traveling mechanism is a traveling cart, and a driving device is provided to drive the traveling cart to travel along the track 7. In another embodiment, the horizontal traveling mechanism includes a driving device, a gear, and a rack. The rack is disposed on the track 7, the gear meshes with the rack, and the driving device is connected to the gear to drive the rotation of the gear, and the rotating mechanism is driven to travel along the track 7 through the cooperation of the gear and the rack.
[0036] In an embodiment, the centrifugal casting device further includes a baffle support 31. First and second openings are respectively disposed at both ends of the centrifugal casting mold 1. The casting runner 2 extends from the first opening into the centrifugal casting mold 1. The baffle support 31 extends from the second opening into the centrifugal casting mold 1 and is connected to the baffle 3.
[0037] Since the baffle 3 and the centrifugal casting mold 1 can be displaced relative to each other, and the baffle 3 is located inside the centrifugal casting mold 1, a baffle support 31 needs to be provided to support the baffle 3. One end of the baffle support 31 is connected to the baffle 3, and the other end of the baffle support 31 extends out of the centrifugal casting mold 1 and is fixedly connected to an external structure. The external structure is a structure that has no fixed relationship with the centrifugal casting mold 1 to ensure the relative displacement of the baffle 3 and the centrifugal casting mold 1.
[0038] In an embodiment, a first cover plate and a second cover plate are respectively arranged at two ends of the centrifugal casting mold 1. The first cover plate and the second cover plate are used for stopping, preventing the molten metal from flowing out of the centrifugal casting mold 1. To satisfy the insertion of the casting runner 2 and the baffle support 31 into the centrifugal casting mold 1, a first opening is formed on the first cover plate, and a second opening is formed on the second cover plate.
[0039] In an embodiment, the centrifugal casting mold 1 includes an inner cylinder and an outer cylinder. The inner cylinder is made of cast iron or graphite, and the outer cylinder is selected from iron and its alloys.
[0040] Using cast iron or graphite as the inner cylinder of the centrifugal casting mold 1, its material is relatively stable, can withstand the high temperature of the molten metal. At the same time, it has self-lubricating performance, which can reduce the demolding difficulty of the cast tubular target.
[0041] In an embodiment, the centrifugal casting device further includes a baffle adjusting device for adjusting the distance between the baffle 3 and the inner wall of the centrifugal casting mold 1.
[0042] In this centrifugal casting device, the function of the baffle 3 is: during the centrifugal casting process, by scraping off the excess molten metal on the inner wall, maintaining the consistency of the thickness of the molten metal at each position in the axial direction. Therefore, by adjusting the distance between the baffle 3 and the inner wall of the centrifugal casting mold 1 through the baffle adjusting device, the purpose of adjusting the thickness of the molten metal can be achieved, making it have good thickness adjustability to meet the requirements of casting tubular targets with different thicknesses.
[0043] In an embodiment, the baffle adjusting device is a height adjusting device, and the distance between the baffle 3 and the inner wall of the centrifugal casting mold 1 is adjusted by adjusting the baffle 3 to different heights.
[0044] In some embodiments, the baffle adjusting device is arranged at the connection position of the baffle 3 and the baffle support 31, or the baffle adjusting device is arranged on the baffle support 31.
[0045] As Figure 2 shown, in an embodiment, the baffle 3 is arranged above the inner cavity bottom wall 11 of the centrifugal casting mold 1. The baffle 3 is perpendicular to the inner cavity bottom wall 11 of the centrifugal casting mold 1. The baffle 3 and the casting port 21 are arranged at intervals along the axial direction of the centrifugal casting mold 1. The baffle 3 extends along the axial direction of the centrifugal casting mold 1, and along the direction from the baffle 3 to the casting port 21, the baffle 3 is skewed towards the rotation direction of the bottom wall of the centrifugal casting mold 1. The included angle between the baffle and the axial direction of the centrifugal casting mold is 30° - 60°.
[0046] In the description of the present application, the "rotation direction of the bottom wall of the centrifugal casting mold 1" is as Figure 2 shown by direction a in the figure, that is, the tangential direction of the bottom wall of the centrifugal casting mold 1. When the centrifugal casting mold 1 rotates clockwise and counterclockwise, the rotation direction of its bottom wall is opposite. It should be noted that the centrifugal casting mold 1 is a rotatable structure. When it rotates, the position of the inner cavity bottom wall 11 of the centrifugal casting mold 1 can be determined according to the real-time state.
[0047] When the centrifugal casting mold 1 rotates, relative movement occurs between the inner cavity bottom wall 11 of the centrifugal casting mold 1 and the baffle 3. At this time, the molten metal exceeding the set thickness on the inner cavity bottom wall 11 of the centrifugal casting mold 1 is scraped off by the baffle 3. While the baffle 3 scrapes the molten metal, the centrifugal casting mold 1 axially displaces in a direction away from the casting runner 2. To prevent the molten metal from being scraped to the side of the baffle 3 away from the casting port 21 during the axial displacement of the centrifugal casting mold 1, the baffle 3 of this centrifugal casting device is obliquely arranged. Specifically, along the direction from the baffle 3 to the casting port 21, the baffle 3 is obliquely arranged towards the rotation direction of the bottom wall of the centrifugal casting mold 1; thus, during the relative movement between the baffle 3 and the centrifugal casting mold 1, a force (as Figure 2 shown by b in the figure) towards the casting port 21 is exerted on the scraped molten metal by the baffle 3, and then the scraped molten metal is pushed towards the side of the casting port 21, preventing the scraped molten metal from entering the side of the baffle 3 away from the casting port 21, ensuring the flatness of the molten metal on the side of the baffle 3 away from the casting port 21 during the axial displacement of the centrifugal casting mold 1, and thus being beneficial to improving the overall thickness consistency of the tubular target obtained by casting.
[0048] In the embodiment, the casting runner 2 is a groove-shaped structure, a heat insulation layer is provided on the outer wall of the casting runner 2, and an electric heating device is provided at the bottom of the casting runner 2.
[0049] By providing a heat insulation layer on the outer wall of the casting runner 2, the cooling rate of the molten metal in the casting runner 2 during casting can be reduced; meanwhile, the electric heating device can provide additional heat supplement, thereby ensuring the temperature of the molten metal in the casting runner 2, avoiding problems such as solidification of the molten metal in the casting runner 2 causing blockage and reduction of the casting flow rate, being beneficial to ensuring the consistency of the flow rate of the molten metal during casting, and improving the thickness uniformity of the tubular target.
[0050] In the embodiment, the electric heating device is selected from resistance heating wires.
[0051] In an embodiment, a support structure for supporting the casting runner 2 is further provided at the bottom of the casting runner 2.
[0052] In an embodiment, the casting runner 2 is made of graphite or tungsten molybdenum and has the characteristic of high temperature resistance.
[0053] In an embodiment, a cover plate structure is provided at the top of the casting runner 2, and the top end of the casting runner 2 is closed through the cover plate structure, which can reduce heat loss.
[0054] In an embodiment, the centrifugal casting device further includes a funnel 4, the funnel 4 is connected to one end of the casting runner 2 located outside the centrifugal casting mold 1, and along the direction from the funnel 4 to the centrifugal casting mold 1, the casting runner 2 is inclined downward.
[0055] The setting of the funnel 4 facilitates the introduction of the molten metal in the casting runner 2 and avoids problems such as overflow or splashing of the molten metal caused by excessive flow rate during the introduction process.
[0056] The inclined setting of the casting runner 2 is beneficial to using the gravitational potential energy to make the molten metal in the casting runner 2 flow into the centrifugal casting mold 1, and no additional driving device needs to be provided.
[0057] In an embodiment, the inclination angle between the casting runner 2 and the horizontal plane is 5° - 60°. Considering that the casting runner 2 needs to extend into the centrifugal casting mold 1, when the length of the tubular target to be cast is relatively large, the inclination angle of the casting runner 2 can be adjusted smaller to adapt to the centrifugal casting mold 1.
[0058] In an embodiment, the centrifugal casting device further includes a melting chamber 6 and an intermediate frequency furnace 5. The intermediate frequency furnace 5 and the funnel 4 are located in the melting chamber 6, and the funnel 4 is located below the intermediate frequency furnace 5.
[0059] The intermediate frequency furnace 5 is used for melting and mixing metal raw materials. The molten metal after being melted by the intermediate frequency furnace 5 enters the funnel 4 through drainage or pouring, and then is introduced into the casting runner 2 by the funnel 4.
[0060] In an embodiment, the intermediate frequency furnace 5 includes an induction coil and a crucible. The induction coil is located on the outer periphery of the crucible, and the crucible and the induction coil are used for heating and melting metal raw materials.
[0061] In an embodiment, the centrifugal casting device further includes a vacuum pumping device and a protective gas supply device. The vacuum pumping device is used to pump out the air in the intermediate frequency furnace 5, and the protective gas supply device is used to introduce a protective gas into the intermediate frequency furnace 5. The protective gas can be selected from gases that do not react with the molten metal, such as argon. By means of the vacuum pumping device and the protective gas supply device, it is possible to avoid the reaction of metal raw materials or molten metal with oxygen, water vapor, etc. in the air during the melting process, which may affect the quality of the cast tubular target.
[0062] In an embodiment, the centrifugal casting device further includes a casting chamber 9, which is arranged adjacent to the melting chamber 6. The rotating mechanism, the centrifugal casting mold 1 and the baffle 3 are located in the casting chamber 9, and the pouring runner 2 extends from the melting chamber 6 to the casting chamber 9.
[0063] The setting of the casting chamber 9 can avoid the interference of the external environment on the centrifugal casting process. Since the centrifugal casting mold 1 undergoes axial displacement during the centrifugal casting process, the setting of the casting chamber 9 can also avoid the interference of the centrifugal casting mold 1 with external structures during the axial displacement process, improving safety. On the other hand, the casting chamber 9 is also conducive to controlling the environmental factors during the casting process of the centrifugal casting mold 1 and avoiding excessive fluctuations in environmental conditions.
[0064] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A centrifugal casting device, characterized in that, It includes a casting runner, a rotating mechanism, a centrifugal casting mold, and a baffle. The centrifugal casting mold is a hollow cylindrical structure. The rotating mechanism is used to drive the centrifugal casting mold to rotate. The casting runner is provided with a casting port. The casting port and the baffle are arranged at intervals inside the centrifugal casting mold, and the baffle is arranged at an interval from the inner wall of the centrifugal casting mold. The centrifugal casting mold can be displaced axially relative to the casting port and the baffle.
2. The centrifugal casting device according to claim 1, characterized in that, The centrifugal casting device further includes a track. The track extends in the horizontal direction. The rotating mechanism is disposed on the track so as to be horizontally displaceable. The centrifugal casting mold is located on the rotating mechanism, and the axis of the centrifugal casting mold is parallel to the track.
3. The centrifugal casting device according to claim 2, characterized in that The rotating mechanism includes a horizontal traveling mechanism, rollers, and a motor. The horizontal traveling mechanism is disposed on the track so as to be horizontally displaceable. The motor and the rollers are disposed on the horizontal traveling mechanism. The motor is used to drive the rollers to rotate. The outer wall of the centrifugal casting mold abuts against the rollers.
4. The centrifugal casting device according to claim 1, characterized in that The centrifugal casting device further includes a baffle support. A first opening and a second opening are respectively provided at both ends of the centrifugal casting mold. The casting runner extends from the first opening into the centrifugal casting mold. The baffle support extends from the second opening into the centrifugal casting mold and connects the baffle.
5. The centrifugal casting device according to claim 1 or 4, characterized in that, The centrifugal casting device further includes a baffle adjusting device. The baffle adjusting device is used to adjust the distance between the baffle and the inner wall of the centrifugal casting mold.
6. The centrifugal casting device according to claim 1 or 4, characterized in that The baffle is disposed above the inner cavity bottom wall of the centrifugal casting mold. The baffle is perpendicular to the inner cavity bottom wall of the centrifugal casting mold. The baffle and the casting port are arranged at intervals along the axis of the centrifugal casting mold. The baffle extends along the axis of the centrifugal casting mold. And along the direction from the baffle to the casting port, the baffle is skewed toward the bottom wall rotation direction of the centrifugal casting mold. The included angle between the baffle and the axis of the centrifugal casting mold is 30° - 60°.
7. The centrifugal casting device according to claim 1, characterized in that, The casting runner is a groove-like structure. A heat insulation layer is provided on the outer wall of the casting runner. An electric heating device is provided at the bottom of the casting runner.
8. The centrifugal casting device according to claim 1, characterized in that, The centrifugal casting device further includes a funnel. The funnel is connected to one end of the casting runner outside the centrifugal casting mold. The casting runner is inclined downward along the direction from the funnel to the centrifugal casting mold.
9. The centrifugal casting device according to claim 8, characterized in that, The centrifugal casting device further includes a melting chamber and an intermediate frequency furnace. The intermediate frequency furnace and the funnel are located in the melting chamber. The funnel is located below the intermediate frequency furnace.
10. The centrifugal casting device according to claim 9, characterized in that, The centrifugal casting device further includes a casting chamber. The casting chamber is adjacently arranged to the melting chamber. The rotating mechanism, the centrifugal casting mold, and the baffle are located in the casting chamber. The casting runner extends from the melting chamber to the casting chamber.