CN113555177A - Method for improving magnetic property of permanent magnetic ferrite and preparation device - Google Patents

Method for improving magnetic property of permanent magnetic ferrite and preparation device Download PDF

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Publication number
CN113555177A
CN113555177A CN202110652632.6A CN202110652632A CN113555177A CN 113555177 A CN113555177 A CN 113555177A CN 202110652632 A CN202110652632 A CN 202110652632A CN 113555177 A CN113555177 A CN 113555177A
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CN
China
Prior art keywords
permanent magnetic
magnetic ferrite
improving
barrel
preparation device
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CN202110652632.6A
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Chinese (zh)
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CN113555177B (en
Inventor
张玲胜
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Nanjing Lishui Jinhong Magnetic Element Co ltd
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Nanjing Lishui Jinhong Magnetic Element Co ltd
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Publication of CN113555177A publication Critical patent/CN113555177A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/10—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials non-metallic substances, e.g. ferrites, e.g. [(Ba,Sr)O(Fe2O3)6] ferrites with hexagonal structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/24—Driving mechanisms
    • 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
    • H01F41/0206—Manufacturing of magnetic cores by mechanical means
    • H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Abstract

The invention relates to the technical field of permanent magnetic ferrite preparation, and particularly discloses a method and a preparation device for improving the magnetic property of a permanent magnetic ferrite. The material is ground more fully, so that the overall quality and the magnetic performance of the permanent magnetic ferrite prepared subsequently are improved.

Description

Method for improving magnetic property of permanent magnetic ferrite and preparation device
Technical Field
The invention relates to the technical field of permanent magnetic ferrite preparation, in particular to a method and a preparation device for improving the magnetic property of permanent magnetic ferrite.
Background
The permanent magnetic material is also called hard magnetic material, and is a material which can provide a constant magnetic field for the outside through magnetization. The permanent magnetic ferrite material can keep larger magnetic energy after being magnetized, and can provide a constant magnetic field for a long time, so that the permanent magnetic ferrite material can be used as a medium for mutual conversion of electric energy and mechanical energy.
At present, a preparation device is needed to be used when the permanent magnetic ferrite is prepared, but the quality of the prepared permanent magnetic ferrite needs to be improved by the existing preparation device.
Disclosure of Invention
The invention aims to provide a method and a preparation device for improving the magnetic property of a permanent magnetic ferrite, and aims to solve the technical problem that the quality of the permanent magnetic ferrite prepared by the preparation device in the prior art is poor.
In order to achieve the above object, the present invention provides a manufacturing apparatus for improving magnetic properties of permanent magnetic ferrite, including a feeding pipe, a discharging pipe, a support, a cylinder, a driven gear, a driving member, a driving gear, a filter plate, an agitating plate and a grinding ball, wherein the feeding pipe and the discharging pipe are respectively communicated with the cylinder, the support is disposed below the feeding pipe and the discharging pipe, the driven gear is fixedly connected with the cylinder and coated on one side of the cylinder, the driving member is fixedly connected with the support, an output end of the driving member is fixedly connected with the driving gear, the driving gear is engaged with the driven gear, the filter plate is fixedly connected with the cylinder and is located inside the cylinder, the cylinder is divided into a first chamber and a second chamber, the grinding ball is disposed inside the first chamber and the second chamber, the stirring plate is fixedly connected with the cylinder body and located inside the first cavity, the stirring plate comprises a first inclined plate, a flat plate and a second inclined plate, the first inclined plate is fixedly connected with the flat plate in sequence, and an included angle formed between the first inclined plate and the flat plate is equal to an included angle formed between the second inclined plate and the flat plate.
After the base material permanent magnetic ferrite pre-sintering material and the additive are added into the cylinder body, the driving piece drives the cylinder body to rotate along with the rotation of the cylinder body, the grinding balls are driven to grind the materials in the first cavity, in addition, the stirring plate is arranged in the first cavity, the grinding balls can fall from the stirring plate from top to bottom along with the rolling of the cylinder, so that the materials are better ground, after the material in the first chamber is ground, the material enters the second chamber through the filter plate, the material is ground again by using the grinding balls in the second chamber and then is discharged from the discharge pipe, so that the grinding process is completed, the material is ground more fully, so that the overall quality and the magnetic performance of the permanent magnetic ferrite prepared subsequently are improved.
The preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a lining plate, wherein the lining plate is fixedly connected with the barrel and is positioned inside the barrel.
The setting up of welt on the one hand can be right the inside of barrel plays the guard action, and on the other hand can promote right the grinding effect of the material in the barrel.
The preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a convex thorn, wherein the convex thorn is fixedly connected with the lining plate and is positioned at one end, far away from the cylinder body, of the lining plate.
The arrangement of the convex thorns can enable the materials in the first cavity to be ground more fully.
The number of the convex thorns is a plurality of, and a plurality of the convex thorns are all located in the first chamber, and each of the convex thorns is far away from one end of the lining plate is inclined towards the filter plate.
A plurality of the arrangement of protruding thorn can effectively promote the grinding effect to the material in the first cavity.
The preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a connecting shaft, and two ends of the connecting shaft are fixedly connected with the cylinder and the filter plate respectively.
The connecting shaft is matched with the grinding balls, so that the stirring effect of the materials in the first cavity can be increased, and the materials can be ground more fully.
The invention also provides a method for improving the magnetic property of the permanent magnetic ferrite by using the preparation device for improving the magnetic property of the permanent magnetic ferrite, which comprises the following steps:
the method comprises the following steps: adding the base material permanent magnetic ferrite pre-sintering material into the cylinder, adding additives of calcium carbonate, silicon dioxide, zinc borate and lanthanum oxide, then adding water, and performing ball milling to obtain permanent magnetic ferrite slurry;
step two: precipitating and filtering the permanent magnetic ferrite slurry obtained in the step one to obtain permanent magnetic ferrite filtered slurry;
step three: injecting the permanent magnetic ferrite filtering slurry obtained in the step two into a mold, and performing pressure forming under a magnetic field to obtain a permanent magnetic ferrite green body;
step four: and sintering the permanent magnetic ferrite green body obtained in the third step to obtain the permanent magnetic ferrite.
According to the method and the preparation device for improving the magnetic property of the permanent magnetic ferrite, after the base material permanent magnetic ferrite pre-sintering material and the additive are added into the barrel, the driving piece drives the barrel to rotate, along with the rotation of the barrel, the grinding balls are driven to grind the materials in the first cavity, in addition, the stirring plate is arranged in the first cavity, the grinding balls can fall from the stirring plate from top to bottom along with the rolling of the cylinder, so that the materials are better ground, after the material in the first chamber is ground, the material enters the second chamber through the filter plate, the material is ground again by using the grinding balls in the second chamber and then is discharged from the discharge pipe, so that the grinding process is completed, the material is ground more fully, so that the overall quality and the magnetic performance of the permanent magnetic ferrite prepared subsequently are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a preparation device for improving the magnetic performance of permanent magnetic ferrite.
FIG. 2 is a front view of the preparation device for improving the magnetic performance of permanent magnetic ferrite.
Fig. 3 is a cross-sectional view of the a-a line structure of fig. 2 of the present invention.
Fig. 4 is an enlarged view of a portion of the structure of fig. 3C according to the present invention.
FIG. 5 is a side view of the manufacturing apparatus for improving the magnetic performance of permanent magnetic ferrite of the present invention.
Fig. 6 is a cross-sectional view of the B-B line structure of fig. 5 in accordance with the present invention.
Fig. 7 is an enlarged view of a portion of the structure of fig. 6D according to the present invention.
FIG. 8 is a schematic view of a part of the structure of the preparation device for improving the magnetic performance of permanent magnetic ferrite.
1-feeding pipe, 2-discharging pipe, 3-support, 4-cylinder, 41-driven gear, 42-driving piece, 43-driving gear, 44-filter plate, 441-first chamber, 442-second chamber, 45-stirring plate, 451-first inclined plate, 452-flat plate, 453-second inclined plate, 454-material passing hole, 455-rolling ball, 456-cross block, 5-lining plate, 51-convex thorn, 6-connecting shaft, 7-supporting rod, 8-cross, 81-supporting rod, 82-roller, 83-wheel body, 84-grinding piece and 9-ring body.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1 to 8, the present invention provides a preparation apparatus for improving magnetic properties of permanent magnetic ferrite, including a feeding pipe 1, a discharging pipe 2, a support 3, a cylinder 4, a driven gear 41, a driving member 42, a driving gear 43, a filter plate 44, a stirring plate 45 and grinding balls, wherein the feeding pipe 1 and the discharging pipe 2 are respectively communicated with the cylinder 4, the support 3 is disposed below the feeding pipe 1 and the discharging pipe 2, the driven gear 41 is fixedly connected with the cylinder 4 and covers one side of the cylinder 4, the driving member 42 is fixedly connected with the support 3, an output end of the driving member 42 is fixedly connected with the driving gear 43, the driving gear 43 is engaged with the driven gear 41, the filter plate 44 is fixedly connected with the cylinder 4 and is located inside the cylinder 4, and divides the cylinder 4 into a first chamber 441 and a second chamber 442, the grinding balls are disposed in both the first chamber 441 and the second chamber 442, the agitating plate 45 is fixedly connected to the cylinder 4 and is disposed in the first chamber 441, the agitating plate 45 includes a first inclined plate 451, a plate 452, and a second inclined plate 453, the first inclined plate 451, the plate 452, and the second inclined plate 453 are sequentially and fixedly connected, and an included angle formed between the first inclined plate 451 and the plate 452 is equal to an included angle formed between the second inclined plate 453 and the plate 452.
In this embodiment, after the base material permanent magnetic ferrite pre-sintered material and the additive are fed into the cylinder 4 through the feeding tube 1, the driving member 42 drives the driving gear 43 to rotate, the driven gear 41 is driven to rotate due to the engagement between the driven gear 41 and the driving gear 43, the cylinder 4 rotates therewith, and the grinding balls are driven to grind the material in the first chamber 441 along with the rotation of the cylinder 4, in addition, the stirring plate 45 is arranged in the first chamber 441, so that the grinding balls can roll along with the cylinder 4 and sequentially fall from the stirring plate 45 from top to bottom, so as to grind the material better, after the material in the first chamber 441 is ground, the material enters the second chamber 442 through the filter plate 44, and the grinding balls in the second chamber 442 are used to grind the material again, and then the materials are discharged from the discharge pipe 2 to complete the grinding process, and the materials are ground more fully, so that the overall quality and the magnetic property of the subsequently prepared permanent magnetic ferrite are improved.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a lining plate 5, wherein the lining plate 5 is fixedly connected with the cylinder body 4 and is positioned inside the cylinder body 4.
In this embodiment, the lining plate 5 can protect the inside of the cylinder 4, and can improve the grinding effect of the material in the cylinder 4.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a protruding spine 51, and the protruding spine 51 is fixedly connected with the lining plate 5 and is located at one end, far away from the cylinder 4, of the lining plate 5. The number of the convex thorns 51 is multiple, the convex thorns 51 are all located in the first chamber 441, and one end, away from the lining plate 5, of each convex thorn 51 is obliquely arranged towards the filter plate 44.
In this embodiment, the burs 51 are provided to grind the material in the first chamber 441 more sufficiently. The arrangement of the plurality of the burs 51 can effectively improve the grinding effect on the material in the first chamber 441.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a connecting shaft 6, and two ends of the connecting shaft 6 are respectively and fixedly connected with the cylinder 4 and the filter plate 44.
In this embodiment, the coupling shaft 6 cooperates with the grinding balls to increase the stirring effect of the material in the first chamber 441, so that the material is ground more fully.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a support rod 7, two cross frames 8 and two ring bodies 9, one end of the support rod 7 is fixedly connected with the filter plate 44, the other end of the support rod 7 sequentially penetrates through the two cross frames 8, the two cross frames 8 are symmetrically arranged, and each cross frame 8 is arranged outside the ring body 9.
In this embodiment, when the ground material enters the second chamber 442 from the first chamber 441 through the filter plate 44, the material will contact the two ring bodies 9 and the cross 8 along with the rotation of the cylinder 4, and cooperate with the grinding balls in the second chamber 442 to grind the material more sufficiently, so as to improve the magnetic performance and quality of the subsequently prepared permanent magnetic ferrite. The support bar 7 is used for supporting the cross 8.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises supporting rods 81, two ends of each supporting rod 81 are respectively fixedly connected with the two crosses 8 and are located between the two crosses 8, the number of the supporting rods 81 is multiple, and the supporting rods 81 are circumferentially distributed between the two crosses 8.
In this embodiment, the supporting rod 81 is arranged to further increase the stirring effect on the material in the second chamber 442, so that the material can be ground more sufficiently, and the grinding efficiency can be improved.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a plurality of rollers 82, each roller 82 is rotatably connected with the corresponding supporting rod 81, and the rollers 82 are sleeved outside the supporting rod 81.
The preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a plurality of wheel bodies 83, and each roller 82 is provided with a plurality of wheel bodies 83.
In this embodiment, the roller 82 is rotatably connected to the supporting rod 81, the wheel body 83 is rotatably connected to the roller 82, when a material contacts the roller 82 or the wheel body 83 along with the rotation of the cylinder 4, friction is generated between the material and the roller 82 or the wheel body 83, and the roller 82 can increase the stirring effect on the material in the second chamber 442, so that the material is ground more sufficiently, and the grinding efficiency is improved.
Further, the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a plurality of grinding members 84, and the plurality of grinding members 84 are respectively fixedly connected with the ring body 9 and are circumferentially distributed on the inner wall of the ring body 9.
In this embodiment, the grinding member 84 is provided to further enhance the stirring effect of the ring 9 on the material, so that the grinding is more sufficient.
Further, the stirring plate 45 has a hollow structure inside, the stirring plate 45 is provided with a plurality of material passing holes 454, and the stirring plate 45 is provided with a plurality of rolling balls 455 inside.
A plurality of rails 456 are disposed on the outer side wall of the stirring plate 45.
In this embodiment, when the material in the first chamber 441 contacts with the stirring plate 45, a part of the material can enter into the stirring plate 45 through the material passing hole 454, and the rolling of the rolling balls 455 can grind the material in the stirring plate 45 and then drop from the material passing hole 454, thereby further making the grinding of the material more sufficient. The arrangement of the cross piece 456 can increase the grinding effect on the materials.
The invention also provides a method for improving the magnetic property of the permanent magnetic ferrite by using the preparation device for improving the magnetic property of the permanent magnetic ferrite, which comprises the following steps:
the method comprises the following steps: adding the base material permanent magnetic ferrite pre-sintered material into the cylinder 4, adding additives of calcium carbonate, silicon dioxide, zinc borate and lanthanum oxide, then adding water, and performing ball milling to obtain permanent magnetic ferrite slurry;
step two: precipitating and filtering the permanent magnetic ferrite slurry obtained in the step one to obtain permanent magnetic ferrite filtered slurry;
step three: injecting the permanent magnetic ferrite filtering slurry obtained in the step two into a mold, and performing pressure forming under a magnetic field to obtain a permanent magnetic ferrite green body;
step four: and sintering the permanent magnetic ferrite green body obtained in the third step to obtain the permanent magnetic ferrite.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (6)

1. A preparation device for improving the magnetic property of permanent magnetic ferrite, which is characterized in that,
including inlet pipe, discharging pipe, support, barrel, driven gear, driving piece, driving gear, filter plate, stirring board and grinding ball, the inlet pipe with the discharging pipe respectively with the barrel intercommunication, the inlet pipe with the below of discharging pipe all is provided with the support, driven gear with barrel fixed connection to the cladding in one side of barrel, the driving piece with support fixed connection, the output of driving piece with driving gear fixed connection, just the driving gear with driven gear meshes, the filter plate with barrel fixed connection to be located the inside of barrel, and will the barrel divide into first cavity and second cavity, first cavity with the inside of second cavity all is provided with grinding ball, stirring board with barrel fixed connection to be located the inside of first cavity, mix the board and include first swash plate, flat board and second swash plate, first swash plate the flat board with the second swash plate is fixed connection in proper order, just first swash plate with the contained angle that forms between the flat board with the second swash plate with the contained angle that forms between the flat board equals.
2. The preparation device for improving the magnetic property of the permanent magnetic ferrite according to claim 1,
the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a lining plate, wherein the lining plate is fixedly connected with the barrel and is positioned inside the barrel.
3. The manufacturing apparatus for improving the magnetic performance of permanent magnetic ferrite according to claim 2,
the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a convex thorn, wherein the convex thorn is fixedly connected with the lining plate and is positioned at one end, far away from the barrel, of the lining plate.
4. The manufacturing apparatus for improving the magnetic performance of permanent magnetic ferrite according to claim 3,
the quantity of protruding thorn is a plurality of, and is a plurality of protruding thorn all is located the inside of first cavity, and every the protruding thorn is kept away from the one end of welt all faces the filter plate slope sets up.
5. The preparation device for improving the magnetic property of the permanent magnetic ferrite according to claim 1,
the preparation device for improving the magnetic property of the permanent magnetic ferrite further comprises a connecting shaft, and two ends of the connecting shaft are respectively fixedly connected with the cylinder body and the filter plate.
6. The method for improving the magnetic property of the permanent magnetic ferrite by using the preparation device for improving the magnetic property of the permanent magnetic ferrite according to claim 1, which is characterized by comprising the following steps:
the method comprises the following steps: adding the base material permanent magnetic ferrite pre-sintering material into the cylinder, adding additives of calcium carbonate, silicon dioxide, zinc borate and lanthanum oxide, then adding water, and performing ball milling to obtain permanent magnetic ferrite slurry;
step two: precipitating and filtering the permanent magnetic ferrite slurry obtained in the step one to obtain permanent magnetic ferrite filtered slurry;
step three: injecting the permanent magnetic ferrite filtering slurry obtained in the step two into a mold, and performing pressure forming under a magnetic field to obtain a permanent magnetic ferrite green body;
step four: and sintering the permanent magnetic ferrite green body obtained in the third step to obtain the permanent magnetic ferrite.
CN202110652632.6A 2021-06-11 2021-06-11 Method for improving magnetic property of permanent magnetic ferrite and preparation device Active CN113555177B (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102935399A (en) * 2011-08-15 2013-02-20 席玉林 Centrifugal grinder
US20150235748A1 (en) * 2012-09-28 2015-08-20 Hitachi Metals, Ltd. Sintered ferrite magnet and its production method
CN108393026A (en) * 2018-03-13 2018-08-14 江苏新化化工有限公司 A kind of chemical industry equipment producing industrial chemicals
CN109012904A (en) * 2018-08-10 2018-12-18 安徽万磁电子有限公司 Ball mill mixing device
CN210230150U (en) * 2019-06-18 2020-04-03 佛山市三晶石陶瓷釉料有限公司 Ball-milling device is used in printing glaze processing
CN210303915U (en) * 2019-07-11 2020-04-14 新沂新世纪高科耐火材料有限公司 Ball mill for refractory material production
CN111099889A (en) * 2019-12-27 2020-05-05 湖南航天磁电有限责任公司 Method for improving magnetic property of permanent magnetic ferrite

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102935399A (en) * 2011-08-15 2013-02-20 席玉林 Centrifugal grinder
US20150235748A1 (en) * 2012-09-28 2015-08-20 Hitachi Metals, Ltd. Sintered ferrite magnet and its production method
CN108393026A (en) * 2018-03-13 2018-08-14 江苏新化化工有限公司 A kind of chemical industry equipment producing industrial chemicals
CN109012904A (en) * 2018-08-10 2018-12-18 安徽万磁电子有限公司 Ball mill mixing device
CN210230150U (en) * 2019-06-18 2020-04-03 佛山市三晶石陶瓷釉料有限公司 Ball-milling device is used in printing glaze processing
CN210303915U (en) * 2019-07-11 2020-04-14 新沂新世纪高科耐火材料有限公司 Ball mill for refractory material production
CN111099889A (en) * 2019-12-27 2020-05-05 湖南航天磁电有限责任公司 Method for improving magnetic property of permanent magnetic ferrite

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