CN115790154A - Neodymium iron boron magnet manufacturing device and manufacturing process thereof - Google Patents
Neodymium iron boron magnet manufacturing device and manufacturing process thereof Download PDFInfo
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- CN115790154A CN115790154A CN202211489367.5A CN202211489367A CN115790154A CN 115790154 A CN115790154 A CN 115790154A CN 202211489367 A CN202211489367 A CN 202211489367A CN 115790154 A CN115790154 A CN 115790154A
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Abstract
The invention relates to the technical field of neodymium iron boron magnet manufacturing, in particular to a neodymium iron boron magnet manufacturing device and a manufacturing process thereof. According to the invention, through the arrangement of the air pump, air pumped by the air pump enters the collection cavity from the output pipe, so that the air in the collection cavity can be blown onto the neodymium iron boron raw material in the temporary storage ring through the air outlet holes along with the entering of the air, the impurities of the neodymium iron boron raw material in the temporary storage ring can be removed, the impurities attached to the surface of the neodymium iron boron raw material can be blown to the outer side of the temporary storage ring through the air outlet holes, and the air plate can also reduce the moisture content of the neodymium iron boron raw material.
Description
Technical Field
The invention relates to the field of manufacturing of neodymium iron boron magnets, in particular to a manufacturing device and a manufacturing process of a neodymium iron boron magnet.
Background
The neodymium magnet is also called a neodymium-iron-boron magnet, and is a tetragonal crystal formed of neodymium, iron, and boron. Neodymium iron boron magnets are widely used in electronic products such as hard disks, mobile phones, earphones, and battery powered tools.
In the patent publication No. CN110233042B, a process for manufacturing a neodymium iron boron magnet is disclosed, which comprises: a. smelting: charging materials, vacuumizing to below 1Pa, starting to heat at low power, and continuously exhausting while heating. Has the advantage of preventing magnetic powder from wrapping impurities.
However, when the ndfeb magnet in "CN110233042B" is used for smelting, there is a disadvantage that the smelting time is long due to uneven heating of the raw material, and if the raw material contains impurities, the quality of the subsequent processing of the ndfeb magnet is reduced, and secondly, when the raw material contains more moisture, the raw material is vaporized by water vapor during smelting, so that more time is needed for smelting, and after a batch of ndfeb raw material is smelted, the temperature of the smelting furnace is often too high, and a technician needs to wait for the cooling of the smelting furnace before the next batch of ndfeb raw material is smelted, so that the smelting efficiency is low.
Disclosure of Invention
The present invention is directed to an apparatus for manufacturing neodymium iron boron magnet and a manufacturing process thereof, so as to solve the problems mentioned in the background art.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a neodymium iron boron magnetism iron manufacturing installation, including the urceolus, the internal rotation of urceolus is installed and is used for carrying out the crucible of smelting to the neodymium iron boron raw materials, the apron is installed in the top lift of urceolus, the top center department fixedly connected with of apron keeps in the ring, the bottom slidable mounting of ring that keeps in has the baffle of "U" font, the ring intercommunication that keeps in has the air extractor that sets up at the apron top, air extractor and urceolus activity intercommunication, the bottom fixedly connected with of apron is used for dispersing the frustum of neodymium iron boron raw materials, the bottom of urceolus is provided with and is used for carrying out refrigerated water tank to the neodymium iron boron raw materials after smelting, the top center department lift of water tank installs the surge drum.
Preferably, the top of urceolus is inlayed and is equipped with a plurality of telescopic links, the stiff end of telescopic link inlays and establishes in the top wallboard of urceolus, the flexible end fixed connection of telescopic link is on the bottom wallboard of apron, the bottom center department fixedly connected with shutoff platform of apron, the top inner wall activity butt of shutoff platform and urceolus, the outside fixedly connected with sealing ring of shutoff platform, the sealing ring is used for the gap between the top wallboard in shutoff platform and the urceolus, air exhauster fixed connection is in top one side of apron, the input and the output of air exhauster communicate respectively has input tube and output tube, the input tube is seted up in the inside of apron and the input tube runs through the shutoff platform, the one end intercommunication that the air exhauster was kept away from to the output tube has the aerofoil.
Preferably, the top side of ring of keeping in is provided with the cardboard, the side of aerofoil is provided with the buckle, cardboard and buckle activity joint, the aerofoil passes through cardboard and buckle demountable installation at the top of ring of keeping in, air exhauster fixed connection is in the one side of ring of keeping in, the inside of aerofoil has been seted up and has been compiled the chamber, it is close to one side and the output tube intercommunication of air exhauster to compile the chamber, a plurality of exhaust vents have been seted up to one side that the aerofoil is close to the ring of keeping in, the both sides of exhaust vent respectively with compile the inside cavity intercommunication of chamber and ring of keeping in, a plurality of ventholes have all been seted up on the three panel that the air exhauster was kept away from to the ring of keeping in, the venthole runs through the side wallboard of the ring of keeping in.
Preferably, the bottom fixedly connected with baffle of baffle, the equal fixedly connected with riser in one side that the baffle both ends are opposite each other, the one end that the baffle was kept away from to two risers respectively with two lateral wall activity butts of ring of keeping in, the ring of keeping in keeps away from the bottom of the three panel of air extractor and has all been seted up logical groove, the inside center department of apron has seted up the feeding taper hole, baffle activity shutoff is at the top of feeding taper hole, the junction of baffle and baffle is located the one side that the air extractor was kept away from at the apron top, the baffle activity is pegged graft in the logical inslot of keeping away from the air extractor.
Preferably, the feeding taper hole runs through apron and shutoff platform, the bottom activity butt of feeding taper hole has the shutoff valve, the one end of shutoff valve is rotated and is connected with the axis of rotation, axis of rotation fixed connection is on the interior top wallboard of stock guide, stock guide fixed connection is in the bottom of shutoff platform, feeding taper hole and stock guide intercommunication, the equal fixedly connected with connecting rod of four corners in the bottom of stock guide, the fixed one end fixedly connected with frustum of stock guide of keeping away from of connecting rod, four connecting rods are fixed connection respectively on the top wallboard at four corners of frustum, the frustum passes through the interior bottom that the connecting rod extends to the crucible.
Preferably, a plurality of fixed plates are fixedly connected to the inner top wall plate of the outer barrel, the fixed plates are fixedly connected to the outer side of the reinforcing ring, an annular groove is formed in the outer wall of the top of the crucible, the fixed plates are rotatably sleeved in the annular groove, a high-frequency current heating ring is arranged at the bottom of the crucible, the high-frequency current heating ring is fixedly connected to the bottom of the inner side wall plate of the outer barrel, a connecting pipe is communicated with the bottom of the crucible, one end, far away from the crucible, of the connecting pipe is fixedly connected to the rotating platform, and an inner pipeline of the connecting pipe penetrates through the rotating platform.
Preferably, a discharge hole is formed in the center of the inner bottom of the outer barrel, an electromagnetic valve is arranged at the bottom of the discharge hole, a sealing valve is arranged at the communication position of the connecting pipe and the crucible, a rotating groove is formed in the inner bottom of the outer barrel, the rotating table is rotatably connected in the rotating groove, a scraping plate is fixedly connected to the top of the side edge of the rotating table, an inclined plate is fixedly connected to the top of the scraping plate, a bottom wall plate of the scraping plate is abutted to the inner bottom wall plate of the outer barrel, a mounting plate is fixedly connected to one side of the outer barrel, an inflator is fixedly connected to the top of the mounting plate, the output end of the inflator is communicated with the inner cavity of the outer barrel, and the communication position of the inflator and the outer barrel faces the direction of the inclined plate.
Preferably, the rectangular channel has been seted up to the interior bottom of urceolus, and one side of rectangular channel is provided with the plate valve, and the one side of inflator is kept away from at the urceolus to the plate valve setting, a plurality of landing legs of bottom fixedly connected with of urceolus, landing leg run through water tank and fixed connection on the interior bottom wallboard of water tank, and the circular slot has been seted up to the interior top center department of water tank, and the surge drum sets up directly over the circular slot, and the bottom activity butt of surge drum has places the board, places the flexible end of a plurality of flexible posts of bottom fixedly connected with of board.
Preferably, the fixed end of the telescopic column is fixedly connected to the inner bottom wall plate of the water tank, a ring plate is fixedly connected to the outer side wall plate at the top of the collecting cylinder, the collecting cylinder is movably accommodated in the circular groove, the ring plate is movably abutted to the top wall plate of the water tank, and the diameter of the inner ring of the ring plate is the same as that of the circular groove.
A manufacturing process of a neodymium iron boron magnet manufacturing device, the manufacturing process comprising the steps of:
the method comprises the following steps: placing neodymium iron boron raw materials in the temporary storage ring, then enabling the cover plate to be blocked at the top of the outer cylinder through contraction of the telescopic rod, then pulling the baffle plate towards the direction far away from the air extractor and opening the blocking valve to enable the neodymium iron boron raw materials to fall into the crucible through the feeding taper hole and the material guide plate;
step two: inserting the baffle plate on the temporary storage ring again to enable the baffle plate to be plugged at the top of the feeding taper hole, then putting neodymium iron boron raw materials in the temporary storage ring again, then covering the air plate on the top of the temporary storage ring, and starting the air extractor to extract air in the outer cylinder;
step three: after air in the outer cylinder is pumped out, heating and smelting the neodymium iron boron raw material in the crucible through a high-frequency current heating ring, simultaneously ensuring the continuous work of an air pump, closing the air pump after the crucible is dark red, and filling argon into the outer cylinder through an inflator;
step four: after the neodymium iron boron raw materials in the crucible are completely smelted, the sealing valve and the electromagnetic valve are opened to enable the neodymium iron boron raw materials in a molten state to enter the collecting cylinder through the discharge hole for pouring, and after the collecting cylinder collects the neodymium iron boron raw materials in the crucible in the molten state, the telescopic columns are controlled to shrink to enable the water tank to cool the neodymium iron boron raw materials in the collecting cylinder.
The invention has the beneficial effects that:
1. according to the invention, through the arrangement of the air pump, air extracted by the air pump enters the collection cavity from the output pipe, so that the air in the collection cavity is blown onto the neodymium iron boron raw material in the temporary storage ring through the air outlet holes along with the entering of the air, impurity removal work can be carried out on the neodymium iron boron raw material in the temporary storage ring, impurities attached to the surface of the neodymium iron boron raw material are blown to the outer side of the temporary storage ring through the air outlet holes, the air plate can also reduce the moisture content in the neodymium iron boron raw material, the evaporation of moisture in the neodymium iron boron raw material is promoted through air circulation, and the evaporation amount of the moisture in the neodymium iron boron raw material in the outer barrel is reduced.
2. According to the invention, through the arrangement of the temporary storage ring, heat is conducted on the neodymium iron boron raw material in the temporary storage ring through the plugging table and the feeding taper hole, meanwhile, through the arrangement of the feeding taper hole, the heat conducted on the neodymium iron boron raw material in the temporary storage ring is limited, so that the neodymium iron boron raw material in the temporary storage ring can achieve a preheating effect, and meanwhile, the situation that the neodymium iron boron raw material in the temporary storage ring is melted due to excessive heat conduction can be avoided, the moisture in the neodymium iron boron raw material can be further promoted to be evaporated through the heat, and secondly, through the mode of adding the neodymium iron boron raw material in the temporary storage groove, after a batch of neodymium iron boron raw material is smelted, and after the neodymium iron boron in a molten state in the crucible is poured, the next batch of neodymium iron boron raw material can be immediately poured through the feeding taper hole, the smelting efficiency of the neodymium iron boron raw material is improved, and the cooling of the outer cylinder is not required.
3. According to the invention, through the arrangement of the water tank, after the telescopic column is contracted, the collecting cylinder can descend, along with the descending of the collecting cylinder, the collecting cylinder can gradually enter the water tank, after the collecting cylinder enters the water tank, the water surface in the water tank can rise, meanwhile, after the water in the water tank is contacted with the collecting cylinder, the water in the water tank can cool the collecting cylinder, the cooling and condensation of a rough blank formed by neodymium iron boron in the collecting cylinder are promoted, and then, the neodymium iron boron magnet can be produced through the subsequent processes of powder making, molding, sintering, mechanical processing and the like. The weight of the bottom of the device can be improved due to the arrangement of the water tank, the gravity center of the device is reduced by adding water, and the stability of the device is improved.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without creative efforts;
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a bottom view of the overall structure of the present invention;
FIG. 3 is a schematic sectional view of the structure of the outer barrel of the present invention;
FIG. 4 is an enlarged view of the portion A shown in FIG. 3 according to the present invention;
FIG. 5 is an enlarged view of the portion B shown in FIG. 3 according to the present invention;
FIG. 6 is a schematic sectional view of the structure of the crucible of the present invention;
FIG. 7 is an enlarged view of the structure of the portion C shown in FIG. 6 according to the present invention;
FIG. 8 is a schematic view showing a structure for connecting a crucible and a turntable according to the present invention;
FIG. 9 is a schematic view of the attachment of the temporary storage ring and the baffle of the present invention;
FIG. 10 is a schematic view of the mounting structure of the baffle and riser of the present invention;
FIG. 11 is a schematic view of the overall configuration of the temporary storage ring of the present invention;
FIG. 12 is a schematic view of the mounting structure of the collection cartridge of the present invention;
FIG. 13 is a schematic view of the cooling effect of the collector bowl of the present invention;
the reference numbers in the figures are as follows: 1. an outer cylinder; 2. a water tank; 3. an inflator; 4. a cover plate; 5. a baffle plate; 6. a wind plate; 7. an air extractor; 8. an output pipe; 9. a temporary storage ring; 11. a telescopic rod; 12. a support leg; 13. a plate valve; 15. a seal ring; 16. a plugging table; 17. a crucible; 18. a material guide plate; 19. a frustum; 20. a connecting rod; 21. a plugging valve; 22. an input tube; 23. a high-frequency current heating ring; 24. a telescopic column; 25. placing the plate; 26. a collection canister; 27. a rotating table; 28. a squeegee; 29. a discharge hole; 30. a feed taper hole; 31. a collection chamber; 32. an air outlet; 33. an air outlet; 34. a reinforcing ring; 35. a rotating shaft; 36. a partition plate; 37. a connecting pipe; 38. a sloping plate; 39. a fixing plate; 40. a vertical plate; 41. a through groove; 42. and (4) a ring plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-13, a neodymium iron boron magnet manufacturing device, including outer tube 1, outer tube 1's inside is rotated and is installed and be used for smelting neodymium iron boron raw materials crucible 17, apron 4 is installed in the top lift of outer tube 1, the top center fixedly connected with of apron 4 keeps in ring 9, the bottom slidable mounting of ring 9 that keeps in has "U" font baffle 5, it has air extractor 7 of setting at apron 4 top to keep in ring 9 intercommunication, air extractor 7 and outer tube 1 activity intercommunication, the bottom fixedly connected with of apron 4 is used for dispersing the frustum 19 of neodymium iron boron raw materials, the bottom of outer tube 1 is provided with and is used for carrying out refrigerated water tank 2 to the neodymium iron boron raw materials after smelting, the top center department lift of water tank 2 installs collection tube 26. An inflator 3 is provided at a side of the outer cylinder 1, and the inflator 3 is used to supplement argon gas into the outer cylinder 1.
As shown in fig. 1-7 and fig. 9-11, a plurality of telescopic rods 11 are embedded in the top of the outer barrel 1, the fixed ends of the telescopic rods 11 are embedded in the top wall plate of the outer barrel 1, the telescopic ends of the telescopic rods 11 are fixedly connected to the bottom wall plate of the cover plate 4, the bottom center of the cover plate 4 is fixedly connected with a plugging table 16, the plugging table 16 is movably abutted to the inner wall of the top of the outer barrel 1, the outer side of the plugging table 16 is fixedly connected with a sealing ring 15, the sealing ring 15 is used for plugging a gap between the plugging table 16 and the top wall plate in the outer barrel 1, the air pump 7 is fixedly connected to one side of the top of the cover plate 4, the input end and the output end of the air pump 7 are respectively communicated with an input pipe 22 and an output pipe 8, the input pipe 22 is arranged in the cover plate 4 and penetrates through the plugging table 16, and the end, far away from the air pump 7, of the output pipe 8 is communicated with a wind plate 6. The setting up of aerofoil 6 can be effectual carries out edulcoration work to the neodymium iron boron raw materials in the ring 9 of keeping in, simultaneously through the setting of aerofoil 6, also can reduce the moisture content in the neodymium iron boron raw materials, promotes the moisture evaporation in the neodymium iron boron raw materials through circulation of air.
As shown in fig. 1-3 and fig. 9-11, a clamping plate is arranged on the side edge of the top of the temporary storage ring 9, a buckle is arranged on the side edge of the wind plate 6, the clamping plate is movably clamped with the buckle, the wind plate 6 is detachably mounted on the top of the temporary storage ring 9 through the clamping plate and the buckle, the air pump 7 is fixedly connected to one side of the temporary storage ring 9, a collecting cavity 31 is formed in the wind plate 6, one side, close to the air pump 7, of the collecting cavity 31 is communicated with the output pipe 8, one side, close to the temporary storage ring 9, of the wind plate 6 is provided with a plurality of air outlet holes 32, two sides of the air outlet holes 32 are respectively communicated with the inner cavities of the collecting cavity 31 and the temporary storage ring 9, a plurality of air outlet holes 33 are formed in three panels, far away from the air pump 7, of the temporary storage ring 9, and the air outlet holes 33 penetrate through the side wall plate of the temporary storage ring 9. The air outlet 33 is arranged, so that impurities on the neodymium iron boron raw material in the temporary storage ring 9 are blown into a gap between the baffle 5 and the temporary storage ring 9, and the impurities in the gap between the baffle 5 and the temporary storage ring 9 can be scraped out by pulling the baffle 5 to drive the vertical plate 40 to move.
As shown in fig. 3-7 and fig. 9-11, a partition 36 is fixedly connected to the bottom of the baffle 5, a vertical plate 40 is fixedly connected to one side of each of two opposite ends of the baffle 5, one end of each of the two vertical plates 40, which is far away from the baffle 5, is movably abutted to two side walls of the temporary storage ring 9, a through groove 41 is formed in the bottom of each of three panels, which is far away from the air extractor 7, of the temporary storage ring 9, a feeding tapered hole 30 is formed in the center of the inner portion of the cover plate 4, the partition 36 is movably plugged at the top of the feeding tapered hole 30, the joint between the partition 36 and the baffle 5 is located on one side, which is far away from the air extractor 7, of the top of the cover plate 4, and the partition 36 is movably plugged in the through groove 41, which is far away from the air extractor 7. Be provided with on the inner wall of baffle 5 and adsorb the brush, adsorb the impurity that the brush is used for adsorbing on the neodymium iron boron raw materials.
As shown in fig. 3-7 and 9-11, the feeding taper hole 30 penetrates through the cover plate 4 and the plugging platform 16, the plugging valve 21 is movably abutted to the bottom of the feeding taper hole 30, one end of the plugging valve 21 is rotatably connected with a rotating shaft 35, the rotating shaft 35 is fixedly connected to an inner top wall plate of the material guide plate 18, the material guide plate 18 is fixedly connected to the bottom of the plugging platform 16, the feeding taper hole 30 is communicated with the material guide plate 18, connecting rods 20 are fixedly connected to four corners of the bottom of the material guide plate 18, one end of each connecting rod 20, which is fixedly far away from the material guide plate 18, is fixedly connected to one end of the corresponding frustum 19, the four connecting rods 20 are respectively fixedly connected to top wall plates of the four corners of the corresponding frustum 19, and the corresponding frustum 19 extends to the inner bottom of the crucible 17 through the connecting rods 20. The joint of the plugging valve 21 and the feeding taper hole 30 is provided with a sealing gasket, the sealing gasket is made of metal, and the sealing device made of metal is the prior art, such as a piston cylinder of an automobile engine, and the prior art is not disclosed too much here.
As shown in fig. 3, 6 and 8, a plurality of fixing plates 39 are fixedly connected to the inner top wall plate of the outer cylinder 1, the fixing plates 39 are fixedly connected to the outer side of the reinforcing ring 34, a ring groove is formed in the outer wall of the top of the crucible 17, the fixing plates 39 are rotatably sleeved in the ring groove, a high-frequency current heating ring 23 is arranged at the bottom of the crucible 17, the high-frequency current heating ring 23 is fixedly connected to the bottom of the inner wall plate of the outer cylinder 1, a connecting pipe 37 is communicated with the bottom of the crucible 17, one end of the connecting pipe 37, which is far away from the crucible 17, is fixedly connected to the rotating table 27, and an inner pipeline of the connecting pipe 37 penetrates through the rotating table 27. The connecting pipe 37 is provided to allow the rotating table 27 to rotate the crucible 17 and to share the supporting force of the reinforcing ring 34 on the crucible 17.
As shown in fig. 1-3 and fig. 6-8, a discharge hole 29 is formed in the center of the inner bottom of the outer cylinder 1, an electromagnetic valve is arranged at the bottom of the discharge hole 29, a sealing valve is arranged at the communication position between the connecting pipe 37 and the crucible 17, a rotating groove is formed in the inner bottom of the outer cylinder 1, the rotating table 27 is rotatably connected in the rotating groove, a scraping plate 28 is fixedly connected to the top of the side edge of the rotating table 27, an inclined plate 38 is fixedly connected to the top of the scraping plate 28, the bottom wall plate of the scraping plate 28 is abutted to the inner bottom wall plate of the outer cylinder 1, a mounting plate is fixedly connected to one side of the outer cylinder 1, an inflator 3 is fixedly connected to the top of the mounting plate, the output end of the inflator 3 is communicated with the inner cavity of the outer cylinder 1, and the communication position between the inflator 3 and the outer cylinder 1 faces the direction of the inclined plate 38. The bottom of the turntable 27 is provided with rollers for reducing the rotation resistance of the turntable 27, thereby enabling the turntable 27 to be blown by the argon gas blown from the inflator 3.
As shown in fig. 1-3, fig. 6 and fig. 12-13, a rectangular groove is formed in the inner bottom of the outer cylinder 1, a plate valve 13 is arranged on one side of the rectangular groove, the plate valve 13 is arranged on one side of the outer cylinder 1, which is far away from the inflator 3, a plurality of support legs 12 are fixedly connected to the bottom of the outer cylinder 1, the support legs 12 penetrate through the water tank 2 and are fixedly connected to inner bottom wall plates of the water tank 2, a circular groove is formed in the center of the inner top of the water tank 2, a collecting cylinder 26 is arranged right above the circular groove, a placing plate 25 is movably abutted to the bottom of the collecting cylinder 26, and a plurality of telescopic ends of telescopic columns 24 are fixedly connected to the bottom of the placing plate 25. The arrangement of the supporting legs 12 can make the water tank 2 effectively increase the contact area of the device and the ground and the weight of the bottom of the device, thereby achieving the purpose of improving the stability of the device.
As shown in fig. 1-3 and fig. 6, the fixed end of the telescopic column 24 is fixedly connected to the inner bottom wall plate of the water tank 2, the top outer side wall plate of the collecting cylinder 26 is fixedly connected with a ring plate 42, the collecting cylinder 26 is movably accommodated in the circular groove, the ring plate 42 is movably abutted against the top wall plate of the water tank 2, and the diameter of the inner ring of the ring plate 42 is the same as that of the circular groove. Due to the arrangement of the ring plate 42, after the telescopic column 24 is contracted to the shortest state, the bottom wall plate of the collecting cylinder 26 is also contacted with the water in the water tank 2, and the cooling efficiency of the collecting cylinder 26 is fully improved.
A manufacturing process of a neodymium iron boron magnet manufacturing device comprises the following steps:
the method comprises the following steps: placing neodymium iron boron raw materials in the temporary storage ring 9, then enabling the cover plate 4 to be blocked at the top of the outer cylinder 1 through contraction of the telescopic rod 11, then pulling the baffle 5 towards the direction far away from the air pump 7 and opening the blocking valve 21, so that the neodymium iron boron raw materials fall into the crucible 17 through the feeding taper hole 30 and the material guide plate 18;
step two: the baffle 5 is inserted on the temporary storage ring 9 again, so that the baffle 36 is blocked at the top of the feeding taper hole 30, the neodymium iron boron raw material is placed in the temporary storage ring 9 again, then the air plate 6 is covered at the top of the temporary storage ring 9, and the air pump 7 is started to pump out the air in the outer barrel 1;
step three: after air in the outer cylinder 1 is pumped out, heating and smelting the neodymium iron boron raw material in the crucible 17 through a high-frequency current heating ring 23, simultaneously ensuring the continuous work of the air pump 7, closing the air pump 7 after the crucible 17 is dark red, and filling argon into the outer cylinder 1 through the inflator 3;
step four: after the neodymium iron boron raw material in the crucible 17 is completely melted, the sealing valve and the electromagnetic valve are opened to enable the neodymium iron boron raw material in a molten state to enter the collecting cylinder 26 through the discharge hole 29 for pouring, and after the collecting cylinder 26 finishes collecting the neodymium iron boron raw material in the crucible 17 in the molten state, the telescopic column 24 is controlled to shrink to enable the water tank 2 to cool the neodymium iron boron raw material in the collecting cylinder 26.
When the sealing device is used, neodymium iron boron raw materials are placed in the temporary storage ring 9, then the cover plate 4 is sealed at the top of the outer cylinder 1 through contraction of the telescopic rod 11, the sealing platform 16 can be abutted against the outer cylinder 1 after the cover plate 4 is sealed at the top of the outer cylinder 1, the sealing ring 15 on the side edge of the sealing platform 16 can effectively seal the outer cylinder 1, and air tightness of the outer cylinder 1 can be guaranteed. After the top with apron 4 shutoff at urceolus 1, with baffle 5 towards the direction pulling of keeping away from air extractor 7 and open shutoff valve 21, baffle 5 also can drive baffle 36 when keeping away from the direction removal of air extractor 7 and remove, baffle 36 is after removing, can make the separation of being connected between ring 9 and the feeding taper hole 30 of keeping in, and then make the neodymium iron boron raw materials can effectually pass through feeding taper hole 30, make the neodymium iron boron raw materials drop in crucible 17 through feeding taper hole 30 and stock guide 18.
When the neodymium iron boron raw materials enter into crucible 17 through feeding taper hole 30, the neodymium iron boron raw materials can drop at the top of frustum 19, the setting of frustum 19 can be when the neodymium iron boron raw materials get into crucible 17, make the neodymium iron boron raw materials disperse in crucible 17, be convenient for follow-up when heating crucible 17, make crucible 17 more even to the heating of neodymium iron boron raw materials, make being heated of each part of neodymium iron boron raw materials all tend to steadily, and then improve the smelting efficiency of neodymium iron boron raw materials.
After finishing the material loading in the crucible 17, through pegging graft baffle 5 on ring 9 of keeping in again for baffle 36 blocks up at the top of feeding taper hole 30, then puts into the neodymium iron boron raw materials in ring 9 of keeping in again, covers aerofoil 6 at the top of ring 9 of keeping in afterwards, closes shutoff valve 21 after and opens air extractor 7 and extract the air in urceolus 1. After the air extractor 7 is opened, the air extractor 7 can be through the air extraction in the input tube 22 follow urceolus 1, make the air in the urceolus 1 taken out on the one hand, make crucible 17 be in the environment of vacuum negative pressure to smelting of neodymium iron boron raw materials, on the other hand enters into from output tube 8 through the air that the air extractor 7 extracted and collects in the chamber 31, make and collect the entering along with the air in the chamber 31, the air that collects in the chamber 31 can blow on the neodymium iron boron raw materials that lies in the ring 9 of keeping in through exhaust vent 32, can carry out edulcoration work to the neodymium iron boron raw materials in the ring 9 of keeping in, make neodymium iron boron raw materials surface-adhered impurity blow in the outside of ring 9 of keeping in place through venthole 33, in this process, baffle 5's setting, can effectually prevent the condition that four scattered appear in the adnexed impurity of neodymium iron boron raw materials surface, the absorption brush that sets up on the inner wall of baffle 5 can be effectual adsorb impurity.
After taking out the air in urceolus 1, heat through the neodymium iron boron raw materials of high frequency current heating ring 23 in to crucible 17 and smelt, guarantee the continuous work of air extractor 7 simultaneously, along with the continuous work of air extractor 7, the inside gas of urceolus 1 carries out effectual heating by high frequency current heating ring 23 this moment, the inside air of urceolus 1 is hotter this moment, the hot-air that air extractor 7 extracted is when blowing on the neodymium iron boron raw materials in ring 9 of keeping in, can effectually preheat the work to the neodymium iron boron raw materials in ring 9 of keeping in, and then make things convenient for the neodymium iron boron raw materials in ring 9 of keeping in to melt more fast when heating and smelting, improve the work efficiency of high frequency current heating ring 23, close air extractor 7 and inject the argon gas into urceolus 1 through inflator 3 after crucible 17 is dark red, charge into the argon gas after and come to heat crucible 17 violently through the output that improves high frequency current heating ring 23, make the neodymium iron boron raw materials in crucible 17 faster be in the molten state.
When filling argon gas into the inside of urceolus 1 through inflator 3, argon gas enters into the inside of urceolus 1 through the output of inflator 3, argon gas can blow on the swash plate 38 that the platform 27 side set up rotates this moment, after swash plate 38 is impacted by argon gas, swash plate 38 can rotate in urceolus 1 of negative pressure state this moment on the one hand, on the other hand swash plate 38 also can guide argon gas to vertical direction in urceolus 1 is inside, make argon gas can be heated by high frequency current heating ring 23 earlier, impact crucible 17 afterwards, impact on shutoff platform 16 after the dispersion of crucible 17, make the temperature of shutoff platform 16 rise, can pass through feeding taper hole 30 conduction after the temperature rise of shutoff platform 16 on the neodymium iron boron raw materials in ring 9 of keeping in, simultaneously through the setting of feeding taper hole 30, make the conduction limited heat on the neodymium iron boron raw materials in ring 9 of keeping in, make the neodymium iron boron raw materials in the ring 9 of keeping in store in can reach the preheating action, also can avoid the heat conduction too much and lead to the condition that the neodymium iron boron raw materials in the ring 9 of keeping in melt to appear simultaneously.
After the neodymium iron boron raw material in the crucible 17 is completely melted, the sealing valve and the electromagnetic valve are opened to enable the neodymium iron boron raw material in a molten state to enter the collecting cylinder 26 through the discharge hole 29 for pouring, and after the collecting cylinder 26 finishes collecting the neodymium iron boron raw material in the crucible 17 in the molten state, the telescopic column 24 is controlled to shrink to enable the water tank 2 to cool the neodymium iron boron raw material in the collecting cylinder 26. Flexible post 24 is after the shrink, collecting cylinder 26 can descend, along with the decline of collecting cylinder 26, collecting cylinder 26 can enter into water tank 2 gradually, collecting cylinder 26 is after entering into water tank 2, can make the surface of water in the water tank 2 rise, simultaneously water in the water tank 2 after with the contact of collecting cylinder 26, water in the water tank 2 can cool down collecting cylinder 26, promote the coarse embryo cooling condensation of neodymium iron boron formation in the collecting cylinder 26, afterwards through subsequent powder process, the shaping, sintering and processes such as machining produce neodymium iron boron magnet can. The water tank 2 is arranged, so that the weight of the bottom of the device can be improved, the gravity center of the device is lowered by adding water, and the stability of the device is improved.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (10)
1. The utility model provides a neodymium iron boron magnetism iron manufacturing installation, including urceolus (1), a serial communication port, the inside rotation of urceolus (1) is installed and is used for carrying out crucible (17) smelted to the neodymium iron boron raw materials, apron (4) are installed in the top lift of urceolus (1), fixedly connected with of the top center department of apron (4) keeps in ring (9), the bottom slidable mounting of ring (9) of keeping in has baffle (5) of "U" font, it has air extractor (7) of setting at apron (4) top to keep in ring (9) intercommunication, air extractor (7) and urceolus (1) activity intercommunication, the bottom fixedly connected with of apron (4) is used for dispersing frustum (19) of neodymium iron boron raw materials, the bottom of urceolus (1) is provided with and is used for carrying out refrigerated water tank (2) to the neodymium iron boron raw materials after smelting, the top center department lift of water tank (2) installs collection section of thick bamboo (26).
2. The NdFeB magnet manufacturing device according to claim 1, characterized in that a plurality of telescopic rods (11) are embedded in the top of the outer barrel (1), fixed ends of the telescopic rods (11) are embedded in a top wall plate of the outer barrel (1), telescopic ends of the telescopic rods (11) are fixedly connected to a bottom wall plate of the cover plate (4), a plugging platform (16) is fixedly connected to the center of the bottom of the cover plate (4), the plugging platform (16) is movably abutted to the inner wall of the top of the outer barrel (1), a sealing ring (15) is fixedly connected to the outer side of the plugging platform (16), the sealing ring (15) is used for plugging a gap between the plugging platform (16) and the top wall plate in the outer barrel (1), the air exhauster (7) is fixedly connected to one side of the top of the cover plate (4), an input end and an output end of the air exhauster (7) are respectively communicated with an input pipe (22) and an output pipe (8), the input pipe (22) is arranged in the cover plate (4) and penetrates through the plugging platform (16), and one end, which is far away from the air exhauster (7) is communicated with an air plate (6).
3. The ndfeb magnet manufacturing device according to claim 2, characterized in that, the top side of ring (9) of keeping in is provided with the cardboard, the side of aerofoil (6) is provided with the buckle, cardboard and buckle activity joint, aerofoil (6) pass through cardboard and buckle demountable installation at the top of ring (9) of keeping in, air extractor (7) fixed connection is in one side of ring (9) of keeping in, the inside of aerofoil (6) has been seted up and has been catched chamber (31), it is close to one side and output tube (8) intercommunication of air extractor (7) to catchment chamber (31), one side that aerofoil (6) are close to ring (9) of keeping in has seted up a plurality of exhaust vents (32), the both sides of exhaust vent (32) respectively with the inside cavity intercommunication that catchments chamber (31) and ring (9) of keeping in, ring (9) keep in keep away from all seted up a plurality of ventholes (33) on the three panel of air extractor (7), venthole (33) run through the wallboard of ring (9) of keeping in.
4. The device for manufacturing the neodymium iron boron magnet according to claim 3, wherein a partition plate (36) is fixedly connected to the bottom of the baffle plate (5), one side of the two opposite ends of the baffle plate (5) is fixedly connected with a vertical plate (40), one end, far away from the baffle plate (5), of each of the two vertical plates (40) is movably abutted to two side walls of the temporary storage ring (9), through grooves (41) are formed in the bottoms of three panels, far away from the air extractor (7), of the temporary storage ring (9), a feeding taper hole (30) is formed in the center of the inner portion of the cover plate (4), the partition plate (36) is movably plugged at the top of the feeding taper hole (30), the joint of the partition plate (36) and the baffle plate (5) is located on one side, far away from the air extractor (7), of the top of the cover plate (4), and the partition plate (36) is movably plugged in the through groove (41) far away from the air extractor (7).
5. The device for manufacturing the neodymium-iron-boron magnet according to claim 4, characterized in that the feeding taper hole (30) penetrates through the cover plate (4) and the blocking table (16), the blocking valve (21) is movably abutted to the bottom of the feeding taper hole (30), one end of the blocking valve (21) is rotatably connected with a rotating shaft (35), the rotating shaft (35) is fixedly connected to an inner top wall plate of the material guide plate (18), the material guide plate (18) is fixedly connected to the bottom of the blocking table (16), the feeding taper hole (30) is communicated with the material guide plate (18), connecting rods (20) are fixedly connected to four corners of the bottom of the material guide plate (18), one end of each connecting rod (20) far away from the material guide plate (18) is fixedly connected with the taper table (19), the four connecting rods (20) are respectively fixedly connected to top wall plates of the four corners of the taper table (19), and the taper table (19) extends to the inner bottom of the crucible (17) through the connecting rods (20).
6. The device for manufacturing the neodymium iron boron magnet according to claim 5, wherein a plurality of fixing plates (39) are fixedly connected to the inner top wall plate of the outer cylinder (1), the fixing plates (39) are fixedly connected to the outer side of the reinforcing ring (34), a ring groove is formed in the outer wall of the top of the crucible (17), the fixing plates (39) are rotatably sleeved in the ring groove, a high-frequency current heating ring (23) is arranged at the bottom of the crucible (17), the high-frequency current heating ring (23) is fixedly connected to the bottom of the inner wall plate of the outer cylinder (1), a connecting pipe (37) is communicated with the bottom of the crucible (17), one end, away from the crucible (17), of the connecting pipe (37) is fixedly connected to the rotating table (27), and an inner pipeline of the connecting pipe (37) penetrates through the rotating table (27).
7. The device for manufacturing the neodymium iron boron magnet according to claim 6, characterized in that a discharge hole (29) is formed in the center of the inner bottom of the outer cylinder (1), an electromagnetic valve is arranged at the bottom of the discharge hole (29), a sealing valve is arranged at the communication position of the connecting pipe (37) and the crucible (17), a rotating groove is formed in the inner bottom of the outer cylinder (1), the rotating table (27) is rotatably connected in the rotating groove, a scraping plate (28) is fixedly connected to the top of the side edge of the rotating table (27), an inclined plate (38) is fixedly connected to the top of the scraping plate (28), the bottom wall plate of the scraping plate (28) is abutted to the inner bottom wall plate of the outer cylinder (1), a mounting plate is fixedly connected to one side of the outer cylinder (1), an inflator (3) is fixedly connected to the top of the mounting plate, the output end of the inflator (3) is communicated with the inner cavity of the outer cylinder (1), and the communication position of the inflator (3) and the outer cylinder (1) faces the direction of the inclined plate (38).
8. The device for manufacturing the neodymium iron boron magnet according to claim 7, characterized in that a rectangular groove is formed in the inner bottom of the outer cylinder (1), a plate valve (13) is arranged on one side of the rectangular groove, the plate valve (13) is arranged on one side, away from the inflator (3), of the outer cylinder (1), a plurality of supporting legs (12) are fixedly connected to the bottom of the outer cylinder (1), the supporting legs (12) penetrate through the water tank (2) and are fixedly connected to inner bottom wall plates of the water tank (2), a circular groove is formed in the center of the inner top of the water tank (2), the collecting cylinder (26) is arranged right above the circular groove, a placing plate (25) is movably abutted to the bottom of the collecting cylinder (26), and a plurality of telescopic ends of telescopic columns (24) are fixedly connected to the bottom of the placing plate (25).
9. The device for manufacturing the neodymium-iron-boron magnet according to claim 8, wherein the fixed end of the telescopic column (24) is fixedly connected to the inner bottom wall plate of the water tank (2), the top outer side wall plate of the collecting cylinder (26) is fixedly connected with a ring plate (42), the collecting cylinder (26) is movably accommodated in the circular groove, the ring plate (42) is movably abutted to the top wall plate of the water tank (2), and the diameter of the inner ring of the ring plate (42) is the same as that of the circular groove.
10. A manufacturing process of the manufacturing apparatus of the neodymium-iron-boron magnet according to claim 9, characterized in that the manufacturing process comprises the steps of:
the method comprises the following steps: neodymium iron boron raw materials are placed in the temporary storage ring (9), then the cover plate (4) is plugged at the top of the outer barrel (1) through contraction of the telescopic rod (11), then the baffle (5) is pulled towards the direction far away from the air pump (7) and the plugging valve (21) is opened, so that the neodymium iron boron raw materials fall into the crucible (17) through the feeding taper hole (30) and the guide plate (18);
step two: the baffle (5) is inserted into the temporary storage ring (9) again, so that the baffle (36) is blocked at the top of the feeding taper hole (30), neodymium iron boron raw materials are put into the temporary storage ring (9) again, then the air plate (6) is covered at the top of the temporary storage ring (9), and the air extractor (7) is started to extract air in the outer barrel (1);
step three: after air in the outer cylinder (1) is pumped out, heating and smelting are carried out on the neodymium iron boron raw material in the crucible (17) through a high-frequency current heating ring (23), meanwhile, the continuous work of the air pump (7) is ensured, after the crucible (17) is dark red, the air pump (7) is closed, and argon is filled into the outer cylinder (1) through the inflator (3);
step four: after the neodymium iron boron raw material in the crucible (17) is completely smelted, the sealing valve and the electromagnetic valve are opened to enable the neodymium iron boron raw material in a molten state to enter the collecting cylinder (26) through the discharge hole (29) for pouring, and after the collecting cylinder (26) finishes collecting the neodymium iron boron raw material in the crucible (17) in the molten state, the telescopic column (24) is controlled to shrink to enable the water tank (2) to cool the neodymium iron boron raw material in the collecting cylinder (26).
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Cited By (1)
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| CN117490412A (en) * | 2023-12-27 | 2024-02-02 | 宝鸡渤宇泰特种金属有限公司 | Discharging equipment of vacuum smelting furnace and vacuum smelting furnace thereof |
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