Induction melting feeding device for high-strength heat-resistant nickel-based alloy
By designing a high-strength heat-resistant nickel-based alloy induction smelting feeding device, the driving motor and rotating shaft are used to realize the input of materials in a vacuum environment, solving the problem of air entering during nickel-based alloy induction smelting, and improving the production of nickel-based alloy quality.
Patent Information
- Application Number
- CN202411284954.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2044-09-13
AI Technical Summary
The subsequent feeding of nickel-based alloy during induction smelting causes air to enter the induction furnace, destroying the vacuum environment and affecting the production quality of nickel-based alloy.
A high-strength heat-resistant nickel-based alloy induction smelting feeding device is designed, including feeding barrel, feeding mechanism and support mechanism. By driving the motor to drive the rotating shaft and dial, the feeding box is rotated and ensured that the material enters the induction under a vacuum environment. furnace, avoid air entering.
Effectively prevent the vacuum environment of the induction furnace during subsequent feeding, reduce the impact on the production quality of nickel-based alloys, and ensure the stability and vacuum effect of the vacuum tube through the opening and closing mechanism and support mechanism.
Smart Images

Figure CN119123816A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of nickel-based alloy production, in particular to a high-strength heat-resistant nickel-based alloy induction melting and feeding device. Background Art
[0002] Nickel-based alloy refers to a type of alloy with comprehensive properties such as high strength and certain resistance to oxidation and corrosion at high temperatures of 650-1000°C. According to the main properties, it is further subdivided into nickel-based heat-resistant alloys, nickel-based corrosion-resistant alloys, nickel-based wear-resistant alloys, nickel-based precision alloys and nickel-based shape memory alloys. When processing nickel-based alloys, the raw materials need to be put into an induction furnace for induction melting.
[0003] In the prior art, induction melting of nickel-based alloys first feeds the metal raw materials into an induction furnace for vacuum melting. The induction furnace needs to maintain a vacuum environment. However, adding materials at this time will cause the vacuum environment inside the melting furnace to be destroyed. Oxygen enters the induction furnace and reacts with some easily oxidized substances inside it, affecting the production quality of the nickel-based alloy. Summary of the invention
[0004] The purpose of the present invention is to provide a high-strength heat-resistant nickel-based alloy induction melting feeding device to solve the problem proposed in the above background technology that subsequent feeding will cause air to enter the induction furnace, affecting the production quality of the nickel-based alloy in the induction furnace.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-strength heat-resistant nickel-based alloy induction melting feeding device, comprising a feeding cylinder, the top of the feeding cylinder is fixedly connected to a first feeding frame, the bottom of the feeding cylinder is fixedly connected to a second feeding frame, the bottom of the second feeding frame is fixedly connected to an induction furnace, a feeding mechanism is installed on one side of the feeding cylinder, a supporting mechanism is installed on the other side of the feeding cylinder, an opening and closing mechanism is installed on the top of the first feeding frame, the feeding mechanism comprises a positioning plate, one side of the positioning plate is rotatably connected to a second connecting shaft, the outside of the second connecting shaft is fixedly connected to an active dial, and the A connecting column is fixedly connected to one side of the active dial, and a cylindrical pin is fixedly connected to one end of the connecting column. A first connecting shaft is rotatably connected to one side of the positioning plate, and a driven groove wheel is fixedly connected to the outside of the first connecting shaft. A locking arc is provided on the outer surface of the driven groove wheel, and a radial groove is provided on the outer surface of the driven groove wheel. One end of the first connecting shaft passes through one side of the feeding cylinder and is fixedly connected to a feeding box, and the other side of the feeding box is fixedly connected to a connecting pipe, one end of the connecting pipe passes through the feeding cylinder and is connected to a bearing, one side of the bearing is fixedly connected to one side of the feeding cylinder, and one end of the bearing is fixedly connected to a vacuum tube.
[0006] Preferably, one side of the positioning plate is fixedly connected to a drive motor, one side of the drive motor is fixedly connected to the top of the induction furnace, the output end of the drive motor is fixedly connected to a first gear, one side of the first gear is meshed with a second gear, and the middle part of the second gear is fixedly connected to the outside of the second connecting shaft.
[0007] Preferably, the opening and closing mechanism comprises a positioning base, a middle portion of which is fixedly connected to an outer surface of the first feed frame, a positioning groove is provided inside the positioning base, and an inner gear ring is rotatably connected inside the positioning groove.
[0008] Preferably, the inner ring surface of the inner gear ring is meshed with a third gear, one side of the third gear is meshed with a movable rack, and the top of the movable rack is fixedly connected with an opening and closing plate.
[0009] Preferably, a rotating shaft is fixedly connected to the middle portion of the third gear, and one end of the rotating shaft is rotatably connected to the top of the positioning base.
[0010] Preferably, a guide groove is provided on the top of the positioning base, and the inside of the guide groove is slidably connected to the outside of the movable rack.
[0011] Preferably, a toggle rod is fixedly connected to the outer surface of the inner gear ring, one end of the toggle rod is rotatably connected to a first electric push rod, and one end of the first electric push rod is fixedly connected to the outer surface of the feeding barrel.
[0012] Preferably, the supporting mechanism includes a clamping plate, two of which are installed on the outer surface of the vacuum tube, a connecting plate is fixedly connected to the outside of the clamping plate, one side of the connecting plate is rotatably connected to a rotating push rod, one end of the connecting plate is slidably connected to a guide rail, and one side of the guide rail is fixedly connected to the top of the induction furnace.
[0013] Preferably, the other end of the rotating push rod is rotatably connected to a sliding rod, the outside of the sliding rod is fixedly connected to a second electric push rod, and one side of the second electric push rod is fixedly connected to the top of the induction furnace.
[0014] Preferably, one end of the sliding rod is slidably connected to a guide frame, and one side of the guide frame is fixedly connected to the top of the induction furnace.
[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the material enters the interior of the feed box, the driving motor works to drive the second connecting shaft to rotate, the active dial rotates accordingly, the cylindrical pin makes a circular motion, the cylindrical pin moves to enter the interior of the radial groove, and drives the driven groove wheel to rotate, so that the opening of the feed box is rotated to different positions, and the feeding, vacuuming and unloading operations can be performed in the feed box respectively, so that the material in the vacuum environment is added to the interior of the induction furnace, preventing the vacuum environment inside the induction furnace from being damaged during the subsequent feeding process, and reducing the impact on the production quality of nickel-based alloys inside the induction furnace.
[0016] 2. In the present invention, the first electric push rod is driven to move the connection with the toggle rod, the inner gear ring rotates, and the third gear rotates accordingly, driving the movable rack to move, which can drive the opening and closing plate connected thereto to move outward, opening and closing the top of the first feed frame, making it easy to feed materials into the first feed frame and preventing foreign objects from entering when no materials are fed.
[0017] 3. In the present invention, the sliding rod is pushed to move by the second electric push rod, and the rotation angle of the two rotating push rods is changed, which pushes the two to move, causing the distance between the two connecting plates to change. The two clamping plates are fixed on the outside of the vacuum tube to support the vacuum tube and prevent the vacuum tube from being twisted together as the feeding box rotates. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a high-strength heat-resistant nickel-based alloy induction melting and feeding device of the present invention; Figure 2 It is a schematic diagram of the connection structure of a feeding mechanism of a high-strength heat-resistant nickel-based alloy induction melting feeding device of the present invention; Figure 3 It is a schematic diagram of the disassembled structure of a feeding mechanism of a high-strength heat-resistant nickel-based alloy induction melting feeding device of the present invention; Figure 4 It is a schematic diagram of the internal cross-sectional structure of a feeding mechanism of a high-strength heat-resistant nickel-based alloy induction melting feeding device of the present invention; Figure 5 It is a schematic diagram of the connection structure of the opening and closing mechanism of a high-strength heat-resistant nickel-based alloy induction melting feeding device of the present invention; Figure 6 It is a schematic diagram of the disassembled structure of an opening and closing mechanism of a high-strength heat-resistant nickel-based alloy induction melting feeding device of the present invention; Figure 7 The present invention is a schematic diagram of the supporting mechanism connection structure of a high-strength heat-resistant nickel-based alloy induction melting and feeding device.
[0019] In the figure: 1. induction furnace; 2. feeding mechanism; 21. positioning plate; 22. driven groove wheel; 23. feeding box; 24. vacuum tube; 25. first gear; 26. second gear; 27. driving motor; 28. bearing; 29. active dial; 210. cylindrical pin; 211. connecting column; 212. first connecting shaft; 213. locking arc; 214. radial groove; 215. connecting pipe; 216. second connecting shaft; 3. feeding cylinder; 4. opening and closing machine Structure; 41. first electric push rod; 42. toggle rod; 43. opening and closing plate; 44. positioning base; 45. positioning groove; 46. third gear; 47. moving rack; 48. rotating shaft; 49. inner gear ring; 410. guide groove; 5. supporting mechanism; 51. connecting plate; 52. clamping plate; 53. second electric push rod; 54. guide frame; 55. sliding rod; 56. rotating push rod; 57. guide rail; 6. first feed frame; 7. second feed frame. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] Example 1: Reference Figure 1-7As shown: a high-strength heat-resistant nickel-based alloy induction melting feeding device, including a feeding cylinder 3, the top of the feeding cylinder 3 is fixedly connected to a first feeding frame 6, the bottom of the feeding cylinder 3 is fixedly connected to a second feeding frame 7, the bottom of the second feeding frame 7 is fixedly connected to an induction furnace 1, a feeding mechanism 2 is installed on one side of the feeding cylinder 3, a supporting mechanism 5 is installed on the other side of the feeding cylinder 3, an opening and closing mechanism 4 is installed on the top of the first feeding frame 6, the feeding mechanism 2 includes a positioning plate 21, one side of the positioning plate 21 is rotatably connected to a second connecting shaft 216, the outside of the second connecting shaft 216 is fixedly connected to an active dial 29, one side of the active dial 29 is fixedly connected to a connecting column 211, one end of the connecting column 211 is fixedly connected to a cylindrical pin 210, one side of the positioning plate 21 is rotatably connected to a first connecting shaft 212, the outside of the first connecting shaft 212 is fixedly connected to a cylindrical pin 210, A driven groove wheel 22 is fixedly connected, a locking arc 213 is provided on the outer surface of the driven groove wheel 22, a radial groove 214 is provided on the outer surface of the driven groove wheel 22, one end of the first connecting shaft 212 passes through one side of the feeding cylinder 3 and is fixedly connected to the feeding box 23, the other side of the feeding box 23 is fixedly connected to a connecting pipe 215, one end of the connecting pipe 215 passes through the feeding cylinder 3 and is connected to a bearing 28, one side of the bearing 28 is fixedly connected to one side of the feeding cylinder 3, and one end of the bearing 28 is fixedly connected to a vacuum tube 24; one side of the positioning plate 21 is fixedly connected to a driving motor 27, one side of the driving motor 27 is fixedly connected to the top of the induction furnace 1, the output end of the driving motor 27 is fixedly connected to a first gear 25, one side of the first gear 25 is meshed with a second gear 26, and the middle part of the second gear 26 is fixedly connected to the outside of the second connecting shaft 216.
[0022] In this embodiment, the material is fed from the inside of the first feed frame 6. At this time, the top opening of the feed box 23 is connected to the bottom of the first feed frame 6, and the material enters the inside of the feed box 23. Through the meshing of the first gear 25 and the second gear 26, the driving motor 27 can drive the first gear 25, the second gear 26 and the second connecting shaft 216 to rotate in sequence. When the second connecting shaft 216 rotates to drive the active dial 29 to rotate, the connecting column 211 and the cylindrical pin 210 make a circular motion, and the cylindrical pin 210 moves to enter the radial groove 214, at this time, the outer surface of the active dial 29 rotates to separate from the locking arc 213, driving the driven groove wheel 22 to rotate, and the cylindrical pin 210 separates from the radial groove 214 after the driven groove wheel 22 rotates 90 degrees. At this time, the driving motor 27 stops working, and the other radial groove 214 of the driven groove wheel 22 contacts the outer arc surface of the active dial 29, locking the driven groove wheel 22. When the driven groove wheel 22 rotates 90 degrees, the first connecting shaft 212 As it rotates, it drives the feed box 23 to rotate ninety degrees. At this time, the opening on the feed box 23 rotates to a horizontal position and is not connected to the bottom end of the first feed frame 6. The inside of the feed box 23 can be evacuated through an external vacuum pump through the vacuum tube 24. Then the driving motor 27 continues to work and drives the driven groove wheel 22 to rotate another ninety degrees. The opening on the feed box 23 rotates downward and is connected to the top of the second feed frame 7. The material inside the feed box 23 enters the interior of the induction furnace 1 through the second feed frame 7. The material in the vacuum environment can be added to the interior of the induction furnace 1 to prevent the vacuum environment inside the induction furnace 1 from being damaged during the subsequent feeding process, thereby reducing the impact on the production quality of the nickel-based alloy inside the induction furnace 1. During the rotation of the feed box 23, the vacuum tube 24 is connected to the connecting tube 215 through the bearing 28. During the rotation of the connecting tube 215 with the feed box 23, the vacuum tube 24 can remain unchanged to prevent the vacuum tube 24 from being twisted together with the rotation of the feed box 23 and affecting the vacuum pumping effect.
[0023] Embodiment 2: Figure 1 , Figure 5 and Figure 6As shown, the opening and closing mechanism 4 includes a positioning base 44, the middle part of the positioning base 44 is fixedly connected to the outer surface of the first feed frame 6, a positioning groove 45 is provided inside the positioning base 44, and the inner part of the positioning groove 45 is rotatably connected to an inner gear ring 49; the inner ring surface of the inner gear ring 49 is meshed with a third gear 46, one side of the third gear 46 is meshed with a moving rack 47, and the top of the moving rack 47 is fixedly connected to an opening and closing plate 43; the middle part of the third gear 46 is fixedly connected to a rotating shaft 48, one end of the rotating shaft 48 is rotatably connected to the top of the positioning base 44; a guide groove 410 is provided on the top of the positioning base 44, and the inside of the guide groove 410 is slidably connected to the outside of the moving rack 47; the outer surface of the inner gear ring 49 is fixedly connected to a toggle rod 42, one end of the toggle rod 42 is rotatably connected to a first electric push rod 41, and one end of the first electric push rod 41 is fixedly connected to the outer surface of the feeding barrel 3.
[0024] In this embodiment, when it is necessary to feed materials into the feeding box 23, the first electric push rod 41 is driven to move the connection with the toggle rod 42, and one end of the toggle rod 42 is fixed to the inner gear ring 49. When the first electric push rod 41 pushes the toggle rod 42 to move, the inner gear ring 49 rotates inside the positioning groove 45. The inner ring of the inner gear ring 49 is meshed with a third gear 46, and one side of the third gear 46 is meshed with a moving rack 47. The rotation of the inner gear ring 49 can drive the third gear 46 to rotate, and the rotation of the third gear 46 drives The movable rack 47 moves, and the movable rack 47 slides inside the guide groove 410, and the movement path of the movable rack 47 can be fixed. The movable rack 47 moves outward to drive the opening and closing plate 43 connected thereto to move outward, and the middle part of the opening and closing plate 43 is opened, so as to facilitate feeding into the interior of the first feed frame 6. After the feeding is completed, the first electric push rod 41 drives the inner gear ring 49 to rotate in the opposite direction, so that the movable rack 47 and the opening and closing plate 43 move toward the middle, and the top of the first feed frame 6 is closed to prevent foreign objects from entering.
[0025] Embodiment 3: According to Figure 1 and Figure 7 As shown, the supporting mechanism 5 includes a clamping plate 52, and two clamping plates 52 are installed on the outer surface of the vacuum tube 24. The outside of the clamping plate 52 is fixedly connected to a connecting plate 51, one side of the connecting plate 51 is rotatably connected to a rotating push rod 56, one end of the connecting plate 51 is slidably connected to a guide rail 57, and one side of the guide rail 57 is fixedly connected to the top of the induction furnace 1; the other end of the rotating push rod 56 is rotatably connected to a sliding rod 55, the outside of the sliding rod 55 is fixedly connected to a second electric push rod 53, and one side of the second electric push rod 53 is fixedly connected to the top of the induction furnace 1; one end of the sliding rod 55 is slidably connected to a guide frame 54, and one side of the guide frame 54 is fixedly connected to the top of the induction furnace 1.
[0026] In this embodiment, the second electric push rod 53 is used to push the sliding rod 55 to move. The sliding rod 55 slides inside the guide frame 54 to fix the movement path of the sliding rod 55. Two rotating push rods 56 are rotatably connected to the outside of the sliding rod 55. The movement of the sliding rod 55 can push the rotating ends of the two rotating push rods 56 to move. The rotation angle of the two rotating push rods 56 changes, pushing the two connecting plates 51 to move. The connecting plates 51 slide on the guide rails 57 to fix the movement path of the connecting plates 51, driving the distance between the two connecting plates 51 to change. The two clamping plates 52 are cooperated and fixed to the outside of the vacuum tube 24. The vacuum tube 24 is a hard pipe, which can provide support for the vacuum tube 24, clamp and fix the vacuum tube 24, and prevent the vacuum tube 24 from being twisted together as the feeding box 23 rotates.
[0027] The method of use and working principle of this device are as follows: when it is necessary to feed materials into the feeding box 23, the first electric push rod 41 is driven to move the connection between the push rod 42 and the toggle rod 42, and the inner gear ring 49 rotates inside the positioning groove 45, driving the third gear 46 to rotate, and the moving rack 47 moves. The moving rack 47 moves outward to drive the opening and closing plate 43 to move outward, and the middle part of the opening and closing plate 43 is opened, and the material is fed from the inside of the first feeding frame 6. After the feeding is completed, the first electric push rod 41 works to drive the inner gear ring 49 to rotate in the opposite direction, so that the moving rack 47 and the opening and closing plate 43 move toward the middle, and the top of the first feeding frame 6 is closed. At this time, the top opening of the feeding box 23 is connected to the bottom end of the first feeding frame 6, and the material enters the inside of the feeding box 23. The driving motor 27 works to drive the second connecting shaft 216 to rotate, and the active dial 29 rotates accordingly. The connecting column 211 and the cylindrical pin 210 make a circular motion, and the cylindrical pin 210 moves to the entry diameter Towards the inside of the groove 214, at this time, the outer surface of the active dial 29 rotates to separate from the fitted locking arc 213, driving the driven groove wheel 22 to rotate. When the driven groove wheel 22 rotates ninety degrees, the first connecting shaft 212 rotates accordingly, driving the feeding box 23 to rotate ninety degrees. At this time, the opening on the feeding box 23 rotates to a horizontal position, and the inside of the feeding box 23 can be evacuated by an external vacuum pump through the vacuum tube 24. Then the driving motor 27 continues to work to drive the driven groove wheel 22 to rotate another ninety degrees. The opening on the feeding box 23 rotates to the bottom and is connected to the top of the second feeding frame 7. The material enters the interior of the induction furnace 1 through the second feeding frame 7. The second electric push rod 53 works to push the sliding rod 55 to move, and the rotation angle of the two rotating push rods 56 changes, pushing the two connecting plates 51 to move, driving the distance between the two connecting plates 51 to change, and the two clamping plates 52 are fixed to the outside of the vacuum tube 24 to support the vacuum tube 24.
[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A high-strength heat-resistant nickel-based alloy induction melting feeding device, comprising a feeding tube (3), characterized in that: The top of the feeding barrel (3) is fixedly connected to a first feeding frame (6), the bottom of the feeding barrel (3) is fixedly connected to a second feeding frame (7), the bottom of the second feeding frame (7) is fixedly connected to an induction furnace (1), a feeding mechanism (2) is installed on one side of the feeding barrel (3), a supporting mechanism (5) is installed on the other side of the feeding barrel (3), an opening and closing mechanism (4) is installed on the top of the first feeding frame (6), the feeding mechanism (2) comprises a positioning plate (21), one side of the positioning plate (21) is rotatably connected to a second connecting shaft (216), the outside of the second connecting shaft (216) is fixedly connected to an active dial (29), one side of the active dial (29) is fixedly connected to a connecting column (211), one end of the connecting column (211) is fixedly connected to A cylindrical pin (210), one side of the positioning plate (21) is rotatably connected to a first connecting shaft (212), the outside of the first connecting shaft (212) is fixedly connected to a driven groove wheel (22), the outer surface of the driven groove wheel (22) is provided with a locking arc (213), the outer surface of the driven groove wheel (22) is provided with a radial groove (214), one end of the first connecting shaft (212) passes through one side of the feeding cylinder (3) and is fixedly connected to a feeding box (23), the other side of the feeding box (23) is fixedly connected to a connecting pipe (215), one end of the connecting pipe (215) passes through the feeding cylinder (3) and is connected to a bearing (28), one side of the bearing (28) is fixedly connected to one side of the feeding cylinder (3), and one end of the bearing (28) is fixedly connected to a vacuum tube (24); The opening and closing mechanism (4) comprises a positioning base (44), the middle portion of the positioning base (44) is fixedly connected to the outer surface of the first feed frame (6), a positioning groove (45) is provided inside the positioning base (44), and an inner gear ring (49) is rotatably connected inside the positioning groove (45); The inner ring surface of the inner gear ring (49) is meshed with a third gear (46), one side of the third gear (46) is meshed with a movable rack (47), and the top of the movable rack (47) is fixedly connected to an opening and closing plate (43); A rotating shaft (48) is fixedly connected to the middle of the third gear (46), and one end of the rotating shaft (48) is rotatably connected to the top of the positioning base (44); A guide groove (410) is provided on the top of the positioning base (44), and the interior of the guide groove (410) is slidably connected to the exterior of the movable rack (47); The outer surface of the inner gear ring (49) is fixedly connected to a toggle rod (42), one end of the toggle rod (42) is rotatably connected to a first electric push rod (41), and one end of the first electric push rod (41) is fixedly connected to the outer surface of the feeding barrel (3).
2. The high-strength heat-resistant nickel-based alloy induction melting feeding device according to claim 1 is characterized in that: A drive motor (27) is fixedly connected to one side of the positioning plate (21), and one side of the drive motor (27) is fixedly connected to the top of the induction furnace (1). An output end of the drive motor (27) is fixedly connected to a first gear (25), and one side of the first gear (25) is meshed with a second gear (26), and a middle portion of the second gear (26) is fixedly connected to the outside of a second connecting shaft (216).
3. The high-strength heat-resistant nickel-based alloy induction melting feeding device according to claim 1 is characterized in that: The support mechanism (5) comprises a clamping plate (52), two clamping plates (52) are mounted on the outer surface of the vacuum tube (24), the outside of the clamping plate (52) is fixedly connected to a connecting plate (51), one side of the connecting plate (51) is rotatably connected to a rotating push rod (56), one end of the connecting plate (51) is slidably connected to a guide rail (57), and one side of the guide rail (57) is fixedly connected to the top of the induction furnace (1).
4. The high-strength heat-resistant nickel-based alloy induction melting feeding device according to claim 3 is characterized in that: The other end of the rotating push rod (56) is rotatably connected to a sliding rod (55), the outside of the sliding rod (55) is fixedly connected to a second electric push rod (53), and one side of the second electric push rod (53) is fixedly connected to the top of the induction furnace (1).
5. The high-strength heat-resistant nickel-based alloy induction melting feeding device according to claim 4 is characterized in that: One end of the sliding rod (55) is slidably connected to a guide frame (54), and one side of the guide frame (54) is fixedly connected to the top of the induction furnace (1).
Citation Information
Patent Citations
Lifting feeding mechanism for new material production
CN114379982A
Inner gear ring chuck
CN115673363A
Industrial furnace feeding mechanism
CN206369472U
Feeding device of vanadium nitride pushed slab kiln
CN211601569U
Silicon material re-feeding device for efficiently producing Czochralski single crystal furnace
CN219621300U
