CN108987089B - Production process for permeating graphene into magnetic body - Google Patents
Production process for permeating graphene into magnetic body Download PDFInfo
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- CN108987089B CN108987089B CN201810804003.9A CN201810804003A CN108987089B CN 108987089 B CN108987089 B CN 108987089B CN 201810804003 A CN201810804003 A CN 201810804003A CN 108987089 B CN108987089 B CN 108987089B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
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Abstract
The invention relates to the technical field of magnet manufacturing, and particularly discloses a production process for permeating graphene into a magnetic body, which comprises the following steps: providing a magnetic body, wherein the magnetic body is made of a magnetic material; providing a heating device, wherein the heating device is used for heating the magnetic body; providing graphene powder, wherein the graphene powder is composed of nano-scale graphene particles; providing a spraying device, wherein the spraying device is used for spraying and permeating graphene powder into the magnetic body heated by the heating device; through with in the graphite alkene powder infiltration magnetism body, promote the high temperature resistance performance of magnetic substance, and then make the magnet that the magnetic substance formed after magnetizing have high temperature resistance performance, avoid the demagnetization that causes because of the too high or ambient temperature when assembling of the service environment temperature of magnet leads to the coercivity of magnet to descend, prolong the life of magnet.
Description
Technical Field
The invention relates to the technical field of magnet manufacturing, and particularly discloses a production process for permeating graphene into a magnetic body.
Background
A magnet is one of the basic elements commonly used, and in the manufacturing process of the magnet, a magnetic material (such as a metal material containing iron, cobalt or nickel) is first used to form the magnet, and then the magnet is magnetized, so that the magnet is manufactured into the magnet. The service environment of magnet is various, for example, during the in-service use, magnet often need be used in high temperature environment, but the high temperature resistant performance of magnet among the prior art is relatively poor, and high temperature often can make magnet take place the demagnetization, causes magnet normal use, has seriously shortened the life of magnet.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the invention aims to provide a production process for permeating graphene into a magnetic body.
In order to achieve the above object, the present invention provides a process for producing a graphene-doped magnetic body, the process comprising:
providing a magnetic body, wherein the magnetic body is made of a magnetic material;
providing a heating device, wherein the heating device is used for heating the magnetic body;
providing graphene powder, wherein the graphene powder is composed of nano-scale graphene particles;
and providing a spraying device, wherein the spraying device is used for spraying and permeating the graphene powder into the magnetic body heated by the heating device.
Preferably, the heating device includes a heat conducting rod rotatably disposed, a heating element disposed on the heat conducting rod, and a first motor for driving the heat conducting rod to rotate, the heating element is configured to heat the heat conducting rod, and the heat conducting rod is configured to bear the magnetic member.
Preferably, heating device still includes support body, heat-insulating post and electrically conducts the sliding ring, and heat-insulating post rotates and sets up in the support body, and first motor sets up in the support body, and the heat-generating body is installed in the heat-conducting rod, and the heat-conducting rod is installed in heat-insulating post, and heat-insulating post encapsulates the heat-generating body in the heat-conducting rod, and heat-insulating post is equipped with the line hole that runs through heat-insulating post, and the line hole is used for holding the power cord of establishing the heat-generating body, and the power cord of heat.
Preferably, the injection device comprises an air blowing mechanism, a feeding mechanism and a nozzle, the nozzle is provided with a discharge hole, an air inlet hole and a feed hole, the air inlet hole and the feed hole are respectively communicated with the discharge hole, the air blowing mechanism is communicated with the air inlet hole, the feeding mechanism is used for conveying graphene powder, and the feeding mechanism is communicated with the feed hole.
Preferably, a static electricity generating device is provided, and the static electricity generating device is used for respectively charging the magnetic body and the graphene powder with positive electricity and negative electricity.
Preferably, a powder boiling device is provided, the powder boiling device comprises a material containing barrel, an air pump and a flow equalizing plate located in the material containing barrel, the flow equalizing plate divides the material containing barrel into a material containing cavity and a material containing cavity, the material containing cavity is used for containing graphene powder, the heat conducting rod is rotatably arranged in the material containing cavity, the material containing cavity is used for containing magnetic bodies borne by the heat conducting rod, the air pump is communicated with the material containing cavity, and the graphene powder in the material containing cavity is blown into the material containing cavity through the flow equalizing plate by the air pump so as to be adhered to the magnetic bodies in the material containing cavity.
Preferably, the boiling powder device further comprises a rotary disc rotatably arranged in the material containing barrel and a second motor for driving the rotary disc to rotate, the rotary disc is located in the material containing cavity, the heat conducting rod is rotatably arranged in the rotary disc, the second motor revolves through a magnetic body borne by the driving rotary disc and the heat conducting rod, and the first motor rotates through the driving heat conducting rod and the magnetic body.
Preferably, the material containing barrel rotates and is provided with a shaft body located in the material containing cavity, the second motor is used for driving the shaft body to rotate, the rotary disc is installed on the shaft body, the number of the heat conducting rods is multiple, and the multiple heat conducting rods surround the shaft body and form an annular array.
Preferably, the turntable is provided with a drive bevel gear and a plurality of transmission rods in a rotating manner, the drive bevel gear is annular and is arranged around the shaft body, the plurality of transmission rods are arranged in an annular array around the shaft body, one end of each transmission rod is provided with a first bevel gear meshed with the drive bevel gear, the other end of each transmission rod is provided with a second bevel gear, and the heat conducting rod is provided with a third bevel gear meshed with the second bevel gear.
Preferably, the aperture of the flow equalizing plate is 1-10 μm.
The invention has the beneficial effects that: through with in the graphite alkene powder infiltration magnetism body, promote the high temperature resistance performance of magnetic substance, and then make the magnet that the magnetic substance formed after magnetizing have high temperature resistance performance, avoid the demagnetization that causes because of the too high or ambient temperature when assembling of the service environment temperature of magnet leads to the coercivity of magnet to descend, prolong the life of magnet.
Drawings
FIG. 1 is a schematic view of the flow structure of the present invention;
fig. 2 is a schematic structural diagram of a heating device according to a first embodiment of the invention;
FIG. 3 is a schematic structural diagram of a spraying device according to a first embodiment of the present invention;
FIG. 4 is a schematic structural view of a boiler apparatus according to a second embodiment of the present invention;
FIG. 5 is a top view of a turntable, a drive bevel gear, a first bevel gear, a transmission rod, a second bevel gear, a third bevel gear, and a heat-conducting rod according to a second embodiment of the present invention;
fig. 6 is a schematic view of a partially enlarged structure of the magnetic body into which the graphene powder of the present invention is infiltrated.
The reference numerals include:
1-heat conducting rod 2-heating body 3-first motor
4-frame body 5-heat insulation column 6-conductive slip ring
7-blind hole 8-line hole 9-injection device
11-blowing mechanism 12-feeding mechanism 13-nozzle
14-discharge hole 15-air inlet hole 16-feed hole
17-boiling powder device 18-material containing barrel 19-air pump
21-flow equalizing plate 22-material containing cavity 23-material containing cavity
24-rotating disc 25-shaft body 26-driving bevel gear
27-transmission rod 28-first bevel gear 29-second bevel gear
31-third bevel gear 101-magnetic body 102-nano-scale graphene particles.
Detailed Description
For the understanding of those skilled in the art, the present invention will be further described with reference to the following examples and drawings, which are not intended to limit the present invention.
The first embodiment.
Referring to fig. 1, fig. 2, fig. 3 and fig. 6, a process for manufacturing a graphene-doped magnetic body according to the present invention includes:
providing a magnetic body 101, wherein the magnetic body 101 is made of a magnetic material, for example, the magnetic body 101 is made of a material containing iron, cobalt or nickel, or the magnetic body 101 is made of a material containing neodymium iron boron;
providing a heating device for heating the magnetic body 101 to make the molecular motion of the magnetic body 101 more active;
providing graphene powder, wherein the graphene powder is composed of nano-scale graphene particles 102;
the spraying device is provided and is used for spraying and permeating graphene powder into the magnetic body 101 heated by the heating device, after the heating device heats the magnetic body 101, the temperature of the magnetic body 101 rises, so that the molecular motion of the magnetic body 101 is intensified, and when the spraying device sprays the graphene powder onto the magnetic body 101 heated by the temperature, the graphene powder can permeate into the magnetic body 101 more easily.
Through in permeating into magnetic substance 101 with graphite alkene powder, promote the high temperature resistance performance of magnetic substance 101, and then make the magnet that magnetic substance 101 formed after magnetizing have high temperature resistance performance, avoid the demagnetization that causes because of the too high or ambient temperature when assembling of service environment temperature of magnet leads to the coercivity of magnet to descend, prolong the life of magnet.
The heating device comprises a heat conducting rod 1 arranged in a rotating mode, a heating body 2 arranged on the heat conducting rod 1 and a first motor 3 used for driving the heat conducting rod 1 to rotate, preferably, the heat conducting rod 1 is made of a metal material with good heat conductivity, for example, the heat conducting rod 1 is made of aluminum alloy, and the heating body 2 is used for heating the heat conducting rod 1. Preferably, the magnetic body 101 is provided with a positioning hole for accommodating the heat conducting rod 1, and the positioning hole is formed by being recessed from the outer surface of the magnetic body 101; the heat conducting rod 1 before the heating of the heating body 2 is in clearance fit with the positioning hole, namely the outer diameter of the heat conducting rod 1 is slightly smaller than the aperture of the positioning hole, and the heat conducting rod 1 after the heating of the heating body 2 is in interference fit with the positioning hole. Of course, according to actual needs, the heat conducting rod 1 may be made of a magnetic material, and the magnetic body 101 may be directly attached to the heat conducting rod 1.
After the heating body 2 heats the heat conducting rod 1, the outer diameter of the heat conducting rod 1 is enlarged due to the expansion and contraction phenomenon, and the aperture of the positioning hole is reduced due to the expansion and contraction phenomenon, so that the magnetic body 101 can be stably fixed on the heat conducting rod 1, and the magnetic body 101 is prevented from falling off from the heat conducting rod 1. After heat conduction stick 1 and magnetic substance 101 cooled down, the external diameter of heat conduction stick 1 diminishes because expend with heat and contract with cold the phenomenon, and the aperture of locating hole is because expend with heat and contract with cold the phenomenon and grow, so, the locating hole of magnetic substance 101 can resume to clearance fit with heat conduction stick 1, then can dismantle magnetic substance 101 from heat conduction stick 1.
Heating device still includes support body 4, thermal-insulated post 5 and electrically conductive sliding ring 6, thermal-insulated post 5 rotates and sets up on support body 4, first motor 3 sets up on support body 4, heat-generating body 2 is installed in heat conduction stick 1, for example, heat conduction stick 1 is provided with blind hole 7 that is used for holding heat-generating body 2, blind hole 7 is established from the surface of heat conduction stick 1 is concave and is formed, heat conduction stick 1 is installed on thermal-insulated post 5, thermal-insulated post 5 encapsulates heat-generating body 2 in heat conduction stick 1, be provided with the line hole 8 that runs through thermal-insulated post 5 on the thermal-insulated post 5, line hole 8 is used for holding the power cord of establishing heat-generating body 2, the power cord of heat-generating body 2 switches on with external power. When the first motor 3 drives the heat conducting rod 1 to rotate, the power line of the heating body 2 is prevented from winding and winding on the outer side of the heat conducting rod 1.
The injection device 9 comprises an air blowing mechanism 11, a feeding mechanism 12 and a spray head 13, wherein the spray head 13 is provided with a discharge hole 14, and an air inlet hole 15 and a feed hole 16 which are respectively communicated with the discharge hole 14, the air blowing mechanism 11 is communicated with the air inlet hole 15, the feeding mechanism 12 is used for conveying graphene powder, and the feeding mechanism 12 is communicated with the feed hole 16. During actual use, high-pressure gas output by the blowing mechanism 11 enters the air inlet 15, the high-pressure gas entering the air inlet 15 sprays graphene powder conveyed by the feeding mechanism 12 onto the heated magnetic body 101 through the discharge hole 14, the graphene powder impacts the magnetic body 101, and then the nano-scale graphene particles 102 are extruded into the magnetic body 101.
The electrostatic generator is used for enabling the magnetic body 101 and the graphene powder to be respectively charged with positive electricity and negative electricity, and the graphene powder sprayed from the discharge hole 14 is enabled to be sprayed on the magnetic body 101 more accurately by utilizing the principle that the positive electricity and the negative electricity are mutually attracted.
Example two
Referring to fig. 1, 4, 5 and 6, a boiling powder device 17 is provided, the boiling powder device 17 includes a material containing cylinder 18, an air pump 19 and a flow equalizing plate 21 disposed in the material containing cylinder 18, the flow equalizing plate 21 is a prior art, the flow equalizing plate 21 has a plurality of flow equalizing holes, the material containing cylinder 18 is divided into a material containing cavity 22 and a material containing cavity 23 by the flow equalizing plate 21, in the present embodiment, the accommodating cavity 23 is located above the accommodating cavity 22, the flow equalizing plate 21 is substantially in a flat plate shape, the flow equalizing plate 21 is located between the accommodating cavity 23 and the accommodating cavity 22, the accommodating cavity 22 is used for accommodating graphene powder, the heat conducting rod 1 is rotatably arranged in the accommodating cavity 23 through the heat insulating column 5, the accommodating cavity 23 is used for accommodating the magnetic body 101 borne by the heat conducting rod 1, the air pump 19 is communicated with the accommodating cavity 22, and the graphene powder in the accommodating cavity 22 is blown into the accommodating cavity 23 through the flow equalizing plate 21 by the air pump 19 so as to be adhered to the magnetic body 101 in the accommodating cavity 23.
During the actual use, add into graphite alkene powder in holding material chamber 22, then bear magnetic substance 101 on heat conduction stick 1, then start heat-generating body 2 and heat conduction stick 1 and make heat conduction stick 1 temperature rise, utilize heat conduction stick 1 heating magnetic substance 101 that the temperature rises, after heat conduction stick 1 and magnetic substance 101 link together because of interference fit is firm, first motor 3 rotates via drive heat insulation post 5 even takes magnetic substance 101 that heat conduction stick 1 bore, start air pump 19 simultaneously, air pump 19 pumps to holding material chamber 22, make the graphite alkene powder in holding material chamber 22 get into holding in the material chamber 23 via flow equalization board 21, make graphite alkene powder be in the boiling state in holding material chamber 23, the graphite alkene powder of boiling state can permeate into magnetic substance 101. According to actual needs, an operator can adjust the power of the air pump 19, and then adjust the moving speed of the graphene powder in the boiling state in the containing cavity 23, so as to change the depth of the graphene powder penetrating into the magnetic body 101.
The boiling powder device 17 further comprises a rotary disc 24 rotatably arranged in the material containing barrel 18 and a second motor for driving the rotary disc 24 to rotate, the rotary disc 24 is located in the material containing cavity 23, the heat conducting rod 1 is rotatably arranged on the rotary disc 24, the second motor rotates with the magnetic body 101 carried by the heat conducting rod 1 via the driving rotary disc 24, and the first motor 3 rotates with the magnetic body 101 via the driving heat conducting rod 1. The graphene powder in the boiling state in the accommodating cavity 23 is matched, and the revolution and rotation of the magnetic body 101 are combined, so that the permeation yield of the graphene powder permeating into the magnetic body 101 is improved.
The material containing barrel 18 is provided with a shaft body 25 positioned in the material containing cavity 23 in a rotating mode, the second motor is used for driving the shaft body 25 to rotate, the rotating disc 24 is arranged on the shaft body 25, the number of the heat conducting rods 1 is multiple, and the plurality of heat conducting rods 1 surround the shaft body 25 and form an annular array. Each heat conducting rod 1 is used for bearing one magnetic body 101, so that the penetration operation of a plurality of magnetic bodies 101 can be realized by one-time operation of the boiling powder device 17, and the manufacturing efficiency of the graphene magnetic body 101 is improved.
The rotating disc 24 is rotatably provided with a driving bevel gear 26 and a plurality of transmission rods 27, the driving bevel gear 26 is annular, the driving bevel gear 26 is arranged around the shaft body 25, the plurality of transmission rods 27 are annular arrays around the shaft body 25, one end of each transmission rod 27 is provided with a first bevel gear 28 meshed with the driving bevel gear 26, the other end of each transmission rod 27 is provided with a second bevel gear 29, and the heat conducting rod 1 is provided with a third bevel gear 31 meshed with the second bevel gear 29. The plurality of transmission rods 27 can be driven by one first motor 3 to rotate with the plurality of magnetic bodies 101, so that the manufacturing cost of the boiling powder device 17 is reduced.
The aperture of the flow equalizing plate 21 is 1-10 μm, so that the magnetic body 101 is prevented from being damaged by impurities with large particle size entering the accommodating cavity 23 through the flow equalizing plate 21.
The rest of this embodiment is the same as the first embodiment, and the unexplained features in this embodiment are explained by the first embodiment, which is not described herein again.
The foregoing is directed to embodiments of the present invention, and other changes and modifications may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (5)
1. A production process for permeating a magnetic body with graphene is characterized by comprising the following steps: the production process of the graphene infiltrated magnetic body comprises the following steps: providing a magnetic body, wherein the magnetic body is made of a magnetic material; providing a heating device, wherein the heating device is used for heating the magnetic body; providing graphene powder, wherein the graphene powder is composed of nano-scale graphene particles; the heating device comprises a heat conducting rod which is rotatably arranged, a heating body which is arranged on the heat conducting rod and a first motor which is used for driving the heat conducting rod to rotate, wherein the heating body is used for heating the heat conducting rod, and the heat conducting rod is used for bearing a magnetic body; providing a boiling powder device, wherein the boiling powder device comprises a material containing barrel, an air pump and a flow equalizing plate positioned in the material containing barrel, the flow equalizing plate divides the material containing barrel into a material containing cavity and a material containing cavity, the material containing cavity is used for containing graphene powder, a heat conducting rod is rotatably arranged in the material containing cavity, the material containing cavity is used for containing a magnetic body borne by the heat conducting rod, the air pump is communicated with the material containing cavity, and the air pump blows the graphene powder in the material containing cavity into the material containing cavity through the flow equalizing plate so that the graphene powder is adhered to the magnetic body in the material containing cavity; the boiling powder device also comprises a rotary disc and a second motor, wherein the rotary disc is rotatably arranged in the material containing barrel, the second motor is used for driving the rotary disc to rotate, the rotary disc is positioned in the material containing cavity, the heat conducting rod is rotatably arranged in the rotary disc, the second motor is driven by the rotary disc to revolve together with a magnetic body borne by the heat conducting rod, and the first motor is driven by the heat conducting rod to rotate together with the magnetic body; after heating device heats the magnetic substance, the temperature of magnetic substance risees for the molecular motion aggravation of magnetic substance, when the air pump will hold the interior graphite alkene powder of material intracavity and blow to the magnetic substance after the temperature risees, graphite alkene powder infiltration goes into in the magnetic substance.
2. The process for producing a graphene-infiltrated magnetic body according to claim 1, wherein: heating device still includes support body, heat-insulating post and electrically conducts the sliding ring, and heat-insulating post rotates and sets up in the support body, and first motor sets up in the support body, and the heat-generating body is installed in the heat conduction stick, and the heat conduction stick is installed in heat-insulating post, and heat-insulating post encapsulates the heat-generating body in the heat conduction stick, and heat-insulating post is equipped with the line hole that runs through heat-insulating post, and the line hole is used for holding the power cord of establishing the heat-generating body, and the power cord of heat-generating.
3. The process for producing a graphene-infiltrated magnetic body according to claim 1, wherein: the material containing barrel rotates and is provided with the axis body that is located the material containing cavity, and the second motor is used for driving the axis body and rotates, and the carousel is installed in the axis body, and the quantity of heat conduction stick is a plurality of, and a plurality of heat conduction sticks are annular array around the axis body.
4. The process for producing a graphene-infiltrated magnetic body according to claim 3, wherein: the turntable is provided with a driving bevel gear and a plurality of transmission rods in a rotating mode, the driving bevel gear is annular and is arranged around the shaft body, the transmission rods are arranged in an annular array around the shaft body, one end of each transmission rod is provided with a first bevel gear meshed with the driving bevel gear, the other end of each transmission rod is provided with a second bevel gear, and the heat conducting rod is provided with a third bevel gear meshed with the second bevel gear.
5. The process for producing a graphene-infiltrated magnetic body according to claim 1, wherein: the aperture of the flow equalizing plate is 1-10 mu m.
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Effective date of registration: 20211220 Address after: 523000 Xiaohe Village Industrial Zone, Daojiao Town, Dongguan City, Guangdong Province Patentee after: JIN KUN MAGNET Co.,Ltd. Address before: 523000 Room 202, unit 2, building 20, jinghuwanpan, 28 Binhe Road, Xinji community, Nancheng District, Dongguan City, Guangdong Province Patentee before: Chen Liang |
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