CN210325394U - Manufacturing equipment for continuous sintered magnet - Google Patents
Manufacturing equipment for continuous sintered magnet Download PDFInfo
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- CN210325394U CN210325394U CN201921171615.5U CN201921171615U CN210325394U CN 210325394 U CN210325394 U CN 210325394U CN 201921171615 U CN201921171615 U CN 201921171615U CN 210325394 U CN210325394 U CN 210325394U
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Abstract
The utility model relates to the technical field of magnet material production, in particular to a manufacturing device of a continuous sintered magnet; the utility model comprises a powder molding press for pressing magnet fine powder into a pressed compact, a soft rubber mold isostatic pressing machine for performing secondary pressing on the pressed compact to form a green compact, a material placing storage box for placing the green compact, and a vacuum sintering furnace for sintering the green compact; the powder forming molding press, the soft rubber mold isostatic pressing machine and the material placing storage box are communicated in sequence; the utility model discloses in, through filling into inert gas in the manufacture equipment at continuous type sintered magnet, under inert gas's protection, carry out the secondary die mould back with magnet farine to make appearance rule, density are even, the orientation degree is good behind the die mould, sinter again, make the magnet, make difficult fracture and unfilled corner of magnet, guarantee the qualification rate.
Description
Technical Field
The utility model relates to a magnet material production technical field particularly, relates to a manufacture equipment of continuous type sintered magnet.
Background
The rare earth neodymium iron boron permanent magnet material is a third-generation permanent magnet material developed in the early eighties, and is commonly called 'permanent magnet king' due to the extremely strong magnetism; the material can absorb an object which is 1000 times of the self weight of the material, has excellent magnetic characteristics and energy-saving, material-saving and environment-friendly effects, and is an incomparable high-performance material compared with other permanent magnetic materials.
The rare earth permanent magnet neodymium iron boron material is used as an important functional material and is also one of important basic materials for supporting the modern electronic information industry; the rare earth permanent magnet neodymium iron boron material is widely applied to the fields of energy sources, transportation, machinery, medical treatment, computers and household appliances, and goes deep into the aspects of national economy, such as watches, cameras, recorders, CD machines, VCD machines and the like, automobiles, engines, suspension trains and the like, the permanent magnet material is ubiquitous, the rare earth permanent magnet neodymium iron boron material can further reduce the size of the existing electronic products, and the performance is greatly improved, so that the rare earth permanent magnet neodymium iron boron material is suitable for the development trend of light, thin and small requirements of the existing electronic products. The yield and the dosage of the rare earth permanent magnet neodymium iron boron material become one of the important marks for measuring the national comprehensive national power and national economic development level.
At present, the existing neodymium iron boron magnetic steel is manufactured by firstly pressing a pressed blank with a certain shape by using a steel die, then manually filling the pressed blank into a plastic bag for vacuum packaging, performing isostatic pressing by using an oil-cooled isostatic pressing machine, then filling into a bag removing box for bag removing, and finally putting into a furnace for sintering. The process has the defects that the pressed compact has more broken edges and corners in the processes of vacuum packaging and transferring, the product is easy to crack and has low qualified rate; during forming, single bagging and packaging are needed, and the bag is detached in the bag detaching process, so that time and labor are wasted, the processing efficiency is low, and the production cost of the magnetic steel is improved; in addition, the oil-cooled isostatic pressing working condition is poor, and environmental pollution is easily caused.
Disclosure of Invention
In order to solve the above problem, an object of the present invention is to provide a manufacturing apparatus for continuous sintered magnet, which fills inert gas in the manufacturing apparatus for continuous sintered magnet, and under the protection of inert gas, carries out double compression of magnet fine powder, thereby making appearance rule, density even, orientation degree good after compression, sintering again, making magnet difficult cracking and unfilled corner, and ensuring qualified rate.
The utility model aims at realizing through the following technical scheme:
the utility model provides a manufacturing equipment of continuous type sintered magnet, wherein, including the powder forming die press that is used for pressing the fine powder of magnet into the pressed compact, be used for carrying out the secondary die pressing to the pressed compact and form the soft rubber mold isostatic press of unburned bricks, be used for putting the pendulum material storage box of unburned bricks and be used for the vacuum sintering stove of sintering to the unburned bricks; the powder forming molding press, the soft rubber mold isostatic pressing machine and the material arranging storage box are communicated in sequence.
As an improvement of the utility model, still including being in put the material storage box with glove box between the vacuum sintering stove, glove box's bottom is provided with the gyro wheel, glove box can slide on installing subaerial track.
As a further improvement, the powder forming die press with the intercommunication has first transition case between the flexible glue mould isostatic pressing machine, be provided with in the first transition case and be used for transmitting the pressed compact extremely first transmission device in the flexible glue mould isostatic pressing machine.
As a further improvement, the flexible glue mold isostatic pressing machine with the intercommunication has the second transition case between the pendulum material storage box, be provided with in the second transition case and be used for transmitting the unburned bricks extremely put the second transmission device in the material storage box.
As a further improvement of the utility model, the end connection of the material placing storage box is provided with a movable device which is used for transmitting the stored green body to the vacuum sintering furnace.
As a further improvement, the first transmission device comprises a transmission motor, a transmission belt and a transmission chain wheel, the transmission chain wheel is coupled in the first transition box, the transmission belt is engaged with the transmission chain wheel and is connected with the transmission chain wheel, and the transmission motor can drive the transmission chain wheel to move.
As a further improvement of the present invention, the movable device includes a slide rail and a push cylinder and a push block connected to the slide rail, the push cylinder can drive the push block to move on the slide rail.
As a further improvement of the present invention, the second transmission device has the same structure as the first transmission device.
As a further improvement, the utility model also comprises a cutting box for cutting the green body, the cutting box is in the flexible glue mould isostatic pressing machine with put between the material storage box.
The utility model discloses in, through filling into inert gas in the manufacture equipment at continuous type sintered magnet, under inert gas's protection, carry out the secondary die mould back with magnet farine to make appearance rule, density are even, the orientation degree is good behind the die mould, sinter again, make the magnet, make difficult fracture and unfilled corner of magnet, guarantee the qualification rate.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the powder pressing mold press of the present invention;
FIG. 3 is a schematic structural diagram of the isostatic pressing machine for the flexible glue mold of the present invention;
fig. 4 is a schematic structural diagram of a first transmission device of the present invention;
fig. 5 is a schematic structural view of the movable device of the present invention;
fig. 6 is a schematic structural diagram of an embodiment of the present invention;
FIG. 7 is a schematic view of the connection structure of the glove box and the vacuum sintering furnace according to the present invention;
FIG. 8 is a top view of the glove box and the vacuum sintering furnace of the present invention;
fig. 9 is a schematic view of the internal structure of the cutting box of the present invention;
FIG. 10 is a graph of experimental data for oil pressure in the prior art;
FIG. 11 is a data chart of the soft rubber mold isostatic pressing experiment in the present invention;
FIG. 12 is a comparison graph of the experiment of the magnetic performance of the isostatic pressing of the soft rubber mold in the present invention and the oil pressure in the prior art;
FIG. 13 is a comparison chart of the pressing efficiency and green compact density of the present invention using isostatic pressing of the flexible glue mold and the oil pressure of the prior art;
wherein the reference numerals are: 1-powder profiling die press, 11-base, 12-die, 13-left magnetic pole, 14-right magnetic pole, 15-upper press head, 16-die cavity, 17-feed inlet, 18-lower press head, 2-soft film isostatic press, 21-high pressure die, 22-rubber die, 23-inner press die, 3-material placing storage box, 31-material rack, 4-glove box, 41-roller, 5-vacuum sintering furnace, 51-movable device, 511-clapboard, 512-pushing cylinder, 513-shutter block, 514-shutter plate, 6-first transition box, 7-second transition box, 8-cutting box, 81-cutting cylinder, 82-cutting block, 83-clamp, 84-rotating table, 85-rotating motor, 86-guide track, 87-feeding cylinder, 88-feeding push rod, 9-first transmission device, 91-transmission motor, 92-conveyor belt and 93-transmission chain wheel.
Detailed Description
In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
As shown in fig. 1 to 13, the continuous sintered magnet manufacturing apparatus of the present invention includes a powder molding press 1 for pressing fine powder of a magnet into a pressed compact, a soft plastic isostatic press 2 for performing secondary pressing on the pressed compact to form a green compact, a material placing storage box 3 for placing the green compact, and a vacuum sintering furnace 5 for sintering the green compact; the powder forming molding press 1, the soft rubber mold isostatic pressing machine 2 and the material placing storage box 3 are communicated in sequence.
The utility model discloses in, through filling into inert gas in the manufacture equipment at continuous type sintered magnet, under inert gas's protection, carry out the secondary die mould back with magnet farine to make appearance rule, density are even, the orientation degree is good behind the die mould, sinter again, make the magnet, make difficult fracture and unfilled corner of magnet, guarantee the qualification rate.
In the utility model, as shown in fig. 2, the powder molding press 1 includes a base 11, a mold 12, a left magnetic pole 13 and a right magnetic pole 14 connected to the base 11, the left magnetic pole 13 and the right magnetic pole 14 are located at two sides of the mold 12, a mold cavity 16 for placing fine magnet powder is provided in the mold 12, a feed inlet 16 is provided on the metal molding press, fine magnet powder can be introduced into the mold cavity 16 in the mold 12 from the feed inlet 16, an upper pressure head 15 is provided right above the mold cavity 16, a lower pressure head 18 is provided right below the mold cavity 16, and the pressure head 15 is connected with an oil cylinder (not shown) of the external device; after the left magnetic pole 13 and the right magnetic pole 14 are magnetized, the magnet fine powder in the die cavity 16 is magnetically oriented, and then the oil cylinder drives the press head 12 to press and compact the magnet fine powder to obtain a pressed blank; that is, the fine magnetic powder is poured from the feed port 17 into the cavity 16, magnetically oriented by the left and right magnetic poles 13 and 14, and pressed downward by the upper ram 15 while the lower ram 18 is stationary, and the upper ram 15 and the lower ram 18 are simultaneously discharged from the cavity 16 at the time of mold discharge.
In the utility model, as shown in fig. 3, the soft rubber mold isostatic pressing machine 2 comprises a high-pressure mold 21, a rubber mold 22 and an inner pressure mold 23, a concave high-pressure mold cavity (not shown) is arranged in the high-pressure mold 21, the inner pressure mold 23 is cylindrical, the inner pressure mold 23 is also concave, oil is sealed in the inner wall of the inner pressure mold 23, the inner pressure mold 23 is pressed on the rubber mold 22, and the rubber mold 22 is used for pressing a pressed blank placed in the high-pressure mold cavity in the high-pressure mold 21 to obtain a green blank; the inner die 23 is connected to an externally connected cylinder or oil cylinder (not shown).
As shown in fig. 7 and 8, the present invention further includes a glove box 4 between the material placing and storing box 3 and the vacuum sintering furnace 5, wherein the bottom of the glove box 4 is provided with rollers 41, the glove box 4 can slide on a track 10 installed on the ground, and a movable device 51 is also arranged between the glove box 4 and the vacuum sintering furnace 5; the movable device 51 comprises a partition 511 and a pushing cylinder 512 arranged on the partition 511, the pushing cylinder 512 is connected with a door blocking block 513, the door blocking block 513 can block the door blocking frame 514, when the pushing cylinder 512 moves to push the door blocking block 513 against the door blocking frame 514, blocking can be performed, the door blocking block 513 is lifted, and green bodies can pass through the door blocking frame 514.
In the utility model, the end of the material placing storage box 3 is connected with a movable device 51 for transmitting the stored green body into the vacuum sintering furnace 5.
The utility model discloses in, the intercommunication has first transition case 6 between powder forming moulding press 1 and the flexible glue mould isostatic pressing machine 2, is provided with in the first transition case 6 to be used for transmitting the pressed compact to the first transmission device 9 in the flexible glue mould isostatic pressing machine 2.
The utility model discloses in, the intercommunication has second transition case 7 between flexible glue film isostatic pressing machine 2 and the pendulum material storage box 3, is provided with in the second transition case 7 to be used for transmitting the unburned bricks to the second transmission device 10 in the pendulum material storage box 3.
As shown in fig. 4, in the utility model, the second transmission device 10 is the same as the first transmission device 9 in structure, the first transmission device 9 includes the transmission motor 91, the conveyer belt 92 and the conveying sprocket 93, the conveying sprocket 93 is journaled in the first transition box 6, the conveyer belt 92 is engaged with and connected on two conveying sprockets 93, the transmission motor 91 can drive the conveying sprocket 93 to move.
The utility model discloses still include the cutting case 8 that is used for cutting the unburned bricks, cutting case 8 is in between flexible glue mould isostatic pressing machine 2 and pendulum material storage box 3, cutting case 8 is including connecting cutting cylinder 81 in the box, revolving stage 84, guide rail 86, be provided with fixture 83 on the revolving stage 84, the bottom of revolving stage 84 is provided with rotating electrical machines 85, rotating electrical machines 85 can drive revolving stage 84 to rotate, be provided with cutting block 82 above fixture 83, cutting block 82 is connected with the cylinder of the peripheral hardware of connecting on the box, be provided with pay-off push rod 88 and pay-off cylinder 87 on guide rail 86, pay-off cylinder 87 is connected in the bottom of guide rail 86; in the unburned bricks passed input fixture 83, cutting block 82 downstream can cut the unburned bricks, rotating electrical machines 85 rotates, thereby can drive the unburned bricks and rotate, cut the unburned bricks again by cutting block 82, thereby make four sides of unburned bricks all can cut, promote again to the guide rail 86 on by cutting cylinder 81, drive the unburned bricks that the pay-off push rod 88 will cut to pendulum material storage box 3 in by pay-off cylinder 87, be provided with the work or material rest 31 of placing the unburned bricks in pendulum material storage box 3.
The utility model discloses in, powder forming moulding press 1 adopts metal mould press, and flexible glue mould isostatic pressing machine 2 adopts rubber mould isostatic pressing machine.
The utility model provides two embodiments of a manufacturing equipment of continuous type sintered magnet: example one and implementation two.
The first embodiment is as follows:
the manufacturing equipment of the continuous sintered magnet of the first embodiment comprises a powder forming molding press 1 for compacting powder into a green compact, a soft rubber mold isostatic press 2 for secondary compacting of the green compact to form a green compact, a material placing storage box 3 for placing the green compact, a glove box 4 between the material placing storage box 3 and a vacuum sintering furnace 4, and the vacuum sintering furnace 4 for sintering of the green compact; the powder forming molding press 1, the soft rubber mold isostatic pressing machine 2 and the material placing storage box 3 are communicated in sequence. The powder forming die press 1 adopts a metal die press, and the soft rubber die isostatic press 2 adopts a rubber die isostatic press. The powder forming molding press 1 comprises a base 11, a mold 12 connected to the base 11, a left magnetic pole 13 and a right magnetic pole 14, wherein the left magnetic pole 13 and the right magnetic pole 14 are positioned at two sides of the mold 12, a mold cavity 16 for placing magnet fine powder is arranged in the mold 12, a feed inlet 16 is arranged on the metal molding press, the magnet fine powder can be introduced into the mold cavity 16 in the mold 12 from the feed inlet 16, an upper pressure head 15 is arranged right above the mold cavity 16, a lower pressure head 18 is arranged right below the mold cavity 16, and the pressure head 15 is connected with an external oil cylinder (not shown); the soft rubber mold isostatic pressing machine 2 comprises a high-pressure mold 21, a rubber mold 22 and an inner pressure mold 23, wherein a concave high-pressure mold cavity (not shown) is arranged in the high-pressure mold 21, the inner pressure mold 23 is cylindrical, the inner part of the inner pressure mold 23 is also concave, oil is sealed in the inner wall of the inner pressure mold 23, the inner pressure mold 23 presses on the rubber mold 22, and a pressed blank placed in the high-pressure mold cavity in the high-pressure mold 21 is pressed by the rubber mold 22 to obtain a green blank; the bottom of the glove box 4 is provided with rollers 41, the glove box 4 can slide on rails 10 arranged on the ground, and a movable device 51 is also arranged between the glove box 4 and the vacuum sintering furnace 5; the movable device 51 comprises a partition 511 and a pushing cylinder 512 arranged on the partition 511, the pushing cylinder 512 is connected with a door blocking block 513, the door blocking block 513 can block a door blocking frame 514, when the pushing cylinder 512 moves to push the door blocking block 513 against the door blocking frame 514, blocking can be performed, the door blocking block 513 is lifted, and green bodies can pass through the door blocking frame 514; a movable device 51 for transmitting the stored green bodies into the vacuum sintering furnace 5 is connected to the tail end of the material placing storage box 3; a first transition box 6 is communicated between the powder forming die press 1 and the soft rubber mold isostatic press 2, a first transmission device 9 used for transmitting a pressed blank into the soft rubber mold isostatic press 2 is arranged in the first transition box 6, the first transmission device 9 comprises a transmission motor 91, a conveyor belt 92 and a transmission chain wheel 93, the transmission chain wheel 93 is connected in the first transition box 6 in a shaft connection mode, the conveyor belt 92 is connected to the two transmission chain wheels 93 in a meshing mode, and the transmission motor 91 can drive the transmission chain wheel 93 to move; a second transition box 7 is communicated between the soft rubber mold isostatic pressing machine 2 and the material placing storage box 3, and a second transmission device 10 used for transmitting the green body to the material placing storage box 3 is arranged in the second transition box 7.
The working process of the first embodiment: adding prepared magnet fine powder into a die cavity 16 from a feed inlet 17, compacting the magnet fine powder into a pressed blank by an upper pressure head 15 under the drive of an air cylinder, transmitting the pressed blank into a high-pressure die of a rubber die isostatic pressing machine through a first conveying device 9, pressing down by the rubber die to obtain a green blank, transmitting the green blank into a material rack 31 in a material placing storage box 3, opening the material rack 31 by a movable device 7 after the green blank is fully placed in the material rack 31, pushing the green blank into a vacuum sintering furnace 5, and cooling after vacuum sintering.
Example two:
the manufacturing equipment of the continuous sintered magnet of the second embodiment comprises a powder forming molding press 1 for compacting powder into a green compact, a cutting box 8 between a soft rubber mold isostatic press 2 and a material placing and storing box 3, the soft rubber mold isostatic press 2 for performing secondary compaction on the green compact to form a green compact, the material placing and storing box 3 for placing the green compact, a glove box 4 between the material placing and storing box 3 and a vacuum sintering furnace 4 for sintering the green compact; the powder forming molding press 1, the soft rubber mold isostatic pressing machine 2 and the material placing storage box 3 are communicated in sequence. The powder forming die press 1 adopts a metal die press, and the soft rubber die isostatic press 2 adopts a rubber die isostatic press. The powder forming molding press 1 comprises a base 11, a mold 12 connected to the base 11, a left magnetic pole 13 and a right magnetic pole 14, wherein the left magnetic pole 13 and the right magnetic pole 14 are positioned at two sides of the mold 12, a mold cavity 16 for placing magnet fine powder is arranged in the mold 12, a feed inlet 16 is arranged on the metal molding press, the magnet fine powder can be introduced into the mold cavity 16 in the mold 12 from the feed inlet 16, an upper pressure head 15 is arranged right above the mold cavity 16, a lower pressure head 18 is arranged right below the mold cavity 16, and the pressure head 15 is connected with an external oil cylinder (not shown); the cutting box 8 comprises a cutting cylinder 81, a rotating platform 84 and a guide rail 86 which are connected in the box body, a clamp 83 is arranged on the rotating platform 84, a rotating motor 85 is arranged at the bottom of the rotating platform 84, the rotating motor 85 can drive the rotating platform 84 to rotate, a cutting block 82 is arranged above the clamp 83, the cutting block 82 is connected with a cylinder connected to the box body and arranged outside, a feeding push rod 88 and a feeding cylinder 87 are arranged on the guide rail 86, and the feeding cylinder 87 is connected to the bottom of the guide rail 86; the green body is conveyed into a clamping apparatus 83, a cutting block 82 moves downwards to cut the green body, a rotating motor 85 rotates to drive the green body to rotate, the cutting block 82 cuts the green body again, so that four sides of the green body can be cut, the cutting cylinder 81 pushes the green body to a guide rail 86, a feeding cylinder 87 drives a feeding push rod 88 to convey the cut green body into a material placing storage box 3, and a material rack 31 for placing the green body is arranged in the material placing storage box 3; the soft rubber mold isostatic pressing machine 2 comprises a high-pressure mold 21, a rubber mold 22 and an inner pressure mold 23, wherein a concave high-pressure mold cavity (not shown) is arranged in the high-pressure mold 21, the inner pressure mold 23 is cylindrical, the inner part of the inner pressure mold 23 is also concave, oil is sealed in the inner wall of the inner pressure mold 23, the inner pressure mold 23 presses on the rubber mold 22, and a pressed blank placed in the high-pressure mold cavity in the high-pressure mold 21 is pressed by the rubber mold 22 to obtain a green blank; the bottom of the glove box 4 is provided with rollers 41, the glove box 4 can slide on rails 10 arranged on the ground, and a movable device 51 is also arranged between the glove box 4 and the vacuum sintering furnace 5; the movable device 51 comprises a partition 511 and a pushing cylinder 512 arranged on the partition 511, the pushing cylinder 512 is connected with a door blocking block 513, the door blocking block 513 can block a door blocking frame 514, when the pushing cylinder 512 moves to push the door blocking block 513 against the door blocking frame 514, blocking can be performed, the door blocking block 513 is lifted, and green bodies can pass through the door blocking frame 514; a movable device 51 for transmitting the stored green bodies into the vacuum sintering furnace 5 is connected to the tail end of the material placing storage box 3; a first transition box 6 is communicated between the powder forming die press 1 and the soft rubber mold isostatic press 2, a first transmission device 9 used for transmitting a pressed blank into the soft rubber mold isostatic press 2 is arranged in the first transition box 6, the first transmission device 9 comprises a transmission motor 91, a conveyor belt 92 and a transmission chain wheel 93, the transmission chain wheel 93 is connected in the first transition box 6 in a shaft connection mode, the conveyor belt 92 is connected to the two transmission chain wheels 93 in a meshing mode, and the transmission motor 91 can drive the transmission chain wheel 93 to move; a second transition box 7 is communicated between the soft rubber mold isostatic pressing machine 2 and the material placing storage box 3, and a second transmission device 10 used for transmitting the green body to the material placing storage box 3 is arranged in the second transition box 7.
Working process of the second embodiment: adding prepared magnet fine powder into a die cavity 16 from a feed inlet 17, compacting the magnet fine powder into a green compact by an upper pressure head 15 under the drive of an air cylinder, transmitting the green compact into a high-pressure die 21 of a rubber die isostatic press through a first conveying device 9, pressing down the green compact by a rubber die 22 to obtain a green compact, transmitting the green compact into a cutting box 8, cutting the green compact input into a fixture 83 by downward movement of a cutting block 82, rotating a rotating motor 85 to drive the green compact to rotate, cutting the green compact by the cutting block 82 again to enable four sides of the green compact to be cut, pushing the four sides of the green compact to a guide rail 86 by a cutting air cylinder 81, driving a feeding push rod 88 to put the cut green compact into a material rack 31 in a material placing storage box 3 by a feeding air cylinder 87, opening a movable device 7 after the material rack 31 is fully placed with the green compact, pushing the green compact into a vacuum sintering furnace 5, vacuum sintering and cooling.
The utility model provides a contrast is tested with prior art's oil pressure to flexible glue mould isostatic pressing:
1. the experimental data of the oil pressure of the prior art is shown in fig. 10;
2. the experimental data of the isostatic pressing of the soft rubber mold in the utility model is shown in figure 11;
3. the experiment of the magnetic performance of the isostatic pressing of the soft rubber mold in the utility model and the oil pressure in the prior art is shown in figure 12;
from the above experimental comparison, it can be known that the differences of various magnetic properties of the product obtained by the isostatic pressing relative to the oil pressure of the flexible glue mold in the utility model are not large; however, the isostatic pressing of the soft rubber mold in the utility model is relatively oil pressure, the width of the mold is small, the appearance is smooth, the size is qualified, and the density of green bodies is relatively high after isostatic pressing; that is to say, under the little condition of product final performance difference, the utility model discloses the wide size of mould of the product after interior flexible glue mould isostatic pressing is on the small side, and the outward appearance is leveled, and the size is qualified, and unburned bricks density is higher relatively behind the isostatic pressing, and product quality than the oil pressure suppression is better.
The utility model also makes a comparison of the pressing work efficiency and the density of the pressed green body by adopting the isostatic pressing of the soft rubber mold and the oil pressure in the prior art, as shown in figure 13; it can be seen that:
1. the isostatic pressing of the flexible glue mold in the utility model is relative to the oil pressure, and the density of the green body is relatively higher after the isostatic pressing;
2. the efficiency of isostatic pressing of the flexible glue mold in the utility model can reach 65S/two sheets (65S/two sheets after pressure maintaining), which is higher than the working efficiency of oil pressure;
3. the utility model has the advantages that the isostatic pressing whole course of the flexible glue mold is free of oil contamination;
4. the utility model discloses interior flexible glue mould isostatic pressing product (220 Mpa) is than oil pressure (180 Mpa), and its mould width size is on the small side, and the size is more qualified.
Compared with the prior art, the utility model has the advantages of as follows:
1. the utility model adopts the isostatic pressing of the soft rubber mold, reduces the environmental pollution, and has better performance for the magnets with the same components and the same process, and because the magnets are formed by the isostatic pressing of the soft rubber mold, higher orientation degree can be obtained, and no oil stain exists in the whole process; because the relative motion between the inner wall of the die cavity and the powder is not generated in the isostatic pressing process of the soft rubber die, the orientation degree is not damaged during pressing. When pressure is applied from the outside, the soft rubber mold expands towards the inner cavity due to the limitation of the nonmagnetic steel mold, and isostatic pressure is applied to the powder sample upwards, so that the powder is molded and densified, and a green body with regular shape, uniform density, good orientation degree and no cracking is obtained.
2. The utility model discloses a powder shaping moulding press and flexible glue mould isostatic pressing machine continuous operation's method for bagging-off in the middle of having reduced, the process of tearing open the bag realizes automated production, reduces artifically, has improved production efficiency, has prevented the phenomenon of colliding with and falling the angle in the middle of having enough to meet the need.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. The manufacturing equipment of the continuous sintered magnet is characterized by comprising a powder forming molding press for compacting fine powder of the magnet into a compact, a soft rubber mold isostatic press for carrying out secondary compaction on the compact to form a green body, a material placing storage box for placing the green body and a vacuum sintering furnace for sintering the green body; the powder forming molding press, the soft rubber mold isostatic pressing machine and the material arranging storage box are communicated in sequence.
2. The manufacturing apparatus of a continuous sintered magnet according to claim 1, further comprising a glove box between said charge distribution box and said vacuum sintering furnace, wherein rollers are provided at the bottom of said glove box, and said glove box is slidable on rails installed on the ground.
3. The manufacturing apparatus of a continuous sintered magnet according to claim 2, wherein a first transition box is communicated between the powder molding press and the soft matrix isostatic press, and a first transfer device for transferring a green compact into the soft matrix isostatic press is provided in the first transition box.
4. The manufacturing equipment of a continuous type sintered magnet according to claim 3, wherein a second transition box is communicated between the soft rubber mold isostatic pressing machine and the material placing storage box, and a second conveying device used for conveying green bodies into the material placing storage box is arranged in the second transition box.
5. The manufacturing apparatus of a continuous sintered magnet according to claim 4, wherein movable means for transferring the stored green compact into the vacuum sintering furnace is connected to an end of the material discharge box.
6. A continuous sintered magnet manufacturing apparatus as claimed in claim 3, wherein said first transport means includes a transport motor, a transport belt and a transport sprocket, said transport sprocket is journaled in said first transition box, said transport belt is engaged with two of said transport sprockets, and said transport motor drives said transport sprocket to move.
7. The manufacturing equipment of a continuous sintered magnet according to claim 5, wherein the movable device comprises a slide rail, and a pushing cylinder and a pushing block connected to the slide rail, and the pushing cylinder can drive the pushing block to move on the slide rail.
8. The manufacturing apparatus of a continuous sintered magnet according to claim 4, wherein said second transporting means is identical in structure to said first transporting means.
9. The manufacturing equipment of a continuous type sintered magnet according to claim 1, further comprising a cutting box for cutting a green body, wherein the cutting box is arranged between the soft rubber mold isostatic press and the material placing and storing box.
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| CN201921171615.5U CN210325394U (en) | 2019-07-24 | 2019-07-24 | Manufacturing equipment for continuous sintered magnet |
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| CN201921171615.5U CN210325394U (en) | 2019-07-24 | 2019-07-24 | Manufacturing equipment for continuous sintered magnet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323022A (en) * | 2019-07-24 | 2019-10-11 | 江西金力永磁科技股份有限公司 | A kind of manufacturing method and its equipment of continous way sintered magnet |
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2019
- 2019-07-24 CN CN201921171615.5U patent/CN210325394U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110323022A (en) * | 2019-07-24 | 2019-10-11 | 江西金力永磁科技股份有限公司 | A kind of manufacturing method and its equipment of continous way sintered magnet |
| CN110323022B (en) * | 2019-07-24 | 2024-07-23 | 江西金力永磁科技股份有限公司 | Method and equipment for manufacturing continuous sintered magnet |
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