CN106116560A - The preparation method of permanent-magnet ferrite magnetic material - Google Patents
The preparation method of permanent-magnet ferrite magnetic material Download PDFInfo
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Abstract
This application discloses the preparation method of a kind of permanent-magnet ferrite magnetic material, comprise the steps: that the zinc oxide taking strontium oxide, boric acid and 50% mixes, heat treated, obtain mixture A；Iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide are added in mixture A, uniform stirring, and carry out pre-burning under air, obtain mixture B；Diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and aluminium sesquioxide are added in mixture B, uniform stirring, and carry out pre-burning under air, obtain mixture C；By adding the water of 12 times in mixture B, carrying out ball milling in being placed in ball mill, being milled to slurry particle diameter is 0.8 1.2 μm, is dried, obtains mixture D；Mixture D is placed in Muffle furnace calcining, then natural cooling cooling.The preparation method of the permanent-magnet ferrite magnetic material that the present invention provides promotes the magnetic behavior of permanent-magnet ferrite magnetic material significantly.
Description
Technical field
The disclosure relates generally to technical field of magnetic materials, is specifically related to oxidate magnetic material, particularly relates to permanent magnet
The preparation method of oxysome magnetic material.
Background technology
Ferrite magnetic material is a kind of composite oxide sintered body nonmetal magnetic material, is generally divided into soft magnetic ferrite
With permanent-magnet ferrite magnetic material.Permanent-magnet ferrite magnetic material includes again Barium hexaferrite and strontium ferrite, and resistivity is high, belongs to
In semiconductor type, therefore eddy-current loss is little, and coercivity is big, can effectively apply in the magnetic circuit of big air gap, is particularly suitable for making little
Generator and the permanent magnet of motor.The raw material sources of permanent-magnet ferrite magnetic material enriches, and technique is uncomplicated, cost
Low, thus there is higher cost performance, it is widely used in all kinds of motors of high power, high rotating speed, high torque, such as superior automobile
The fields such as motor, motorcycle starter, household electrical appliance and electric tool motor.At present, in order to improve permanent-magnet ferrite
Comprehensive magnetic or can improve the characteristic performance in terms of some, and the main solution used is by improving for preparing permanent magnetism
The component of ferrite magnetic material and corresponding proportion, or improvement prepares the production technology of permanent-magnet ferrite magnetic material.
Chinese invention patent 201410077393.6 (October 14 2015 day for announcing) discloses a kind of high magnetic energy permanent-magnet ferrite material
Material, in terms of parts by weight, including iron sesquioxide 100-120 part, lanthana 2-4 part, silica 1 6-23 part, Barium monoxide
0.5-1.5 part, strontium oxide 0.2-0.8 part, calcium carbonate 15-25 part and magnesium stearate 3-9 part；And preparation technology: (1) is by three oxygen
Changing two ferrum, lanthana, Barium monoxide and strontium oxide and carry out pre-burning the most under air, calcined temperature is 1200-1300 DEG C, treats
Coarse crushing is carried out after raw material natural cooling；(2) raw material after coarse crushing is mixed with silicon dioxide, calcium carbonate and magnesium stearate
After, adding water and the steel ball of mixture total weight 3-6 times of mixture total weight 1-2 times, employing grinding of ball grinder to slurry granularity is
0.5-1.0μm；(3) slurry is carried out processed, compressing under conditions of pressure is 20MPa afterwards, add simultaneously
The alignment magnetic field of 5000-8000A/m, obtains green compact；(4) being sintered under Oxygen Condition by green compact, sintering temperature is 1200-
1300 DEG C, keeping 2-3h, Temperature fall obtains Ferrite Material subsequently.The high magnetic energy permanent-magnet ferrite material prepared, surplus
The parameter indexs such as magnetic, HCJ and maximum magnetic energy product, apparently higher than common Ferrite Material, improve overall magnetic property.
So, improve the component being used for preparing permanent-magnet ferrite magnetic material and preparation technology has become as grinding of those skilled in the art
Study carefully focus and difficult point.
Summary of the invention
In view of drawbacks described above of the prior art or deficiency, it is desirable to provide a kind of permanent-magnet ferrite magnetic improving magnetic behavior
The preparation method of property material.
The present invention provides a kind of permanent-magnet ferrite magnetic material, and permanent-magnet ferrite magnetic material includes following parts by weight
Component: iron sesquioxide 100 parts, strontium carbonate 3-5 part, boric acid 12-15, diboron trioxide 10-13 part, magnesium oxide 0.5-1 part, high
Ridge soil 6-10 part, trimethylolpropane 3-6 part, Barium monoxide 3-9 part, lanthana 1-3 part, Dineodymium trioxide 12-15 part, epoxy resin 2-
8 parts, zinc oxide 3-6 part, quartz 8-12 part, copper oxide 4-6 part, aluminium sesquioxide 1-2 part.Preparation method includes walking as follows
Rapid:
Step one, the zinc oxide taking above-mentioned strontium oxide, boric acid and 50% mixes, and heats at 1000-1200 DEG C
Process, obtain mixture A；
Step 2, adds mixture A by above-mentioned iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide
In, uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, slightly breaks after raw material natural cooling
Broken, obtain mixture B；
Step 3, by above-mentioned diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and
Aluminium sesquioxide adds in mixture B, uniform stirring, and carries out pre-burning under air, and calcined temperature is 1200-1300 DEG C, treats
Carry out coarse crushing after raw material natural cooling, obtain mixture C；
Step 4, by adding the water of 1-2 times in mixture B, carries out ball milling in being placed in ball mill, is milled to slurry particle diameter
For 0.8-1.2 μm, then it is dried in 100-110 DEG C, obtains mixture D；
Step 5, is placed in Muffle furnace calcining by mixture D, is warming up to 100-with the heating rate that 14-16 degree is per minute
110 DEG C, then natural cooling cooling, obtains permanent-magnet ferrite magnetic material.
The permanent-magnet ferrite magnetic material preparation technology that the present invention provides, prepares each component of above-mentioned specified weight number
Go out permanent-magnet ferrite magnetic material so that permanent-magnet ferrite magnetic material performance is much larger than common permanent-magnet ferrite magnetic material
Performance, wherein magnetic energy product can reach 51.0-53.5kJ/m3, HCJ can reach 381.3-388.4kA/m, remanent magnetization
Intensity can reach 532.6-553.9mT, promotes the magnetic behavior of permanent-magnet ferrite magnetic material significantly.
Accompanying drawing explanation
By the detailed description that non-limiting example is made made with reference to the following drawings of reading, other of the application
Feature, purpose and advantage will become more apparent upon:
The process chart preparing permanent-magnet ferrite magnetic material that Fig. 1 embodiment of the present invention provides.
Detailed description of the invention
With embodiment, the application is described in further detail below in conjunction with the accompanying drawings.It is understood that this place is retouched
The specific embodiment stated is used only for explaining related invention, rather than the restriction to this invention.It also should be noted that, in order to
It is easy to describe, accompanying drawing illustrate only and invent relevant part.
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can phases
Combination mutually.Describe the application below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Embodiment 1
In the present embodiment, permanent-magnet ferrite magnetic material includes the component of following parts by weight: iron sesquioxide 100
Part, strontium oxide 3 parts, boric acid 12 parts, diboron trioxide 10 parts, magnesium oxide 0.5 part, Kaolin 6 parts, trimethylolpropane 3 parts, oxygen
Change barium 3 parts, lanthana 1 part, Dineodymium trioxide 12 parts, epoxy resin 2 parts, zinc oxide 13 parts, quartz 8 parts, copper oxide 4 parts, three oxygen
Change 1 part of two aluminum.
Refer to Fig. 1, the present embodiment uses the method preparing permanent-magnet ferrite magnetic material as follows, specifically include as follows
Step:
Step one, the zinc oxide taking above-mentioned strontium oxide, boric acid and 50% mixes, and heats at 1000-1200 DEG C
Process, obtain mixture A；
Step 2, adds mixture A by above-mentioned iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide
In, uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, slightly breaks after raw material natural cooling
Broken, obtain mixture B；
Step 3, by above-mentioned diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and
Aluminium sesquioxide adds in mixture B, uniform stirring, and carries out pre-burning under air, and calcined temperature is 1200-1300 DEG C, treats
Carry out coarse crushing after raw material natural cooling, obtain mixture C；
Step 4, by adding the water of 1-2 times in mixture B, carries out ball milling in being placed in ball mill, is milled to slurry particle diameter
For 0.8-1.2 μm, then it is dried in 100-110 DEG C, obtains mixture D；
Step 5, is placed in Muffle furnace calcining by mixture D, is warming up to 100-with the heating rate that 14-16 degree is per minute
110 DEG C, then natural cooling cooling, i.e. permanent-magnet ferrite magnetic material.
Embodiment 2
In the present embodiment, permanent-magnet ferrite magnetic material includes the component of following parts by weight: iron sesquioxide 100
Part, strontium oxide 3.5 parts, boric acid 13 parts, diboron trioxide 11 parts, magnesium oxide 0.7 part, Kaolin 7 parts, trimethylolpropane 4 parts,
Barium monoxide 5 parts, lanthana 1.5 parts, Dineodymium trioxide 13 parts, epoxy resin 4 parts, zinc oxide 14 parts, quartz 9 parts, copper oxide 4.5
Part, aluminium sesquioxide 1.5 parts.
Refer to Fig. 1, the present embodiment uses the method preparing permanent-magnet ferrite magnetic material as follows, specifically include as follows
Step:
Step one, the zinc oxide taking above-mentioned strontium oxide, boric acid and 50% mixes, and heats at 1000-1200 DEG C
Process, obtain mixture A；
Step 2, adds mixture A by above-mentioned iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide
In, uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, slightly breaks after raw material natural cooling
Broken, obtain mixture B；
Step 3, by above-mentioned diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and
Aluminium sesquioxide adds in mixture B, uniform stirring, and carries out pre-burning under air, and calcined temperature is 1200-1300 DEG C, treats
Carry out coarse crushing after raw material natural cooling, obtain mixture C；
Step 4, by adding the water of 1-2 times in mixture B, carries out ball milling in being placed in ball mill, is milled to slurry particle diameter
For 0.8-1.2 μm, then it is dried in 100-110 DEG C, obtains mixture D；
Step 5, is placed in Muffle furnace calcining by mixture D, is warming up to 100-with the heating rate that 14-16 degree is per minute
110 DEG C, then natural cooling cooling, i.e. permanent-magnet ferrite magnetic material.
Embodiment 3
In the present embodiment, permanent-magnet ferrite magnetic material includes the component of following parts by weight: iron sesquioxide 100
Part, strontium carbonate 4 parts, boric acid 14, diboron trioxide 12 parts, magnesium oxide 0.8 part, Kaolin 8 parts, trimethylolpropane 5 parts, oxidation
Barium 6 parts, lanthana 2 parts, Dineodymium trioxide 13 parts, epoxy resin 5 parts, zinc oxide 4 parts, quartz 10 parts, copper oxide 5 parts, three oxidations
Two 1.5 parts of aluminum.
Refer to Fig. 1, the present embodiment uses the method preparing permanent-magnet ferrite magnetic material as follows, specifically include as follows
Step:
Step one, the zinc oxide taking above-mentioned strontium oxide, boric acid and 50% mixes, and heats at 1000-1200 DEG C
Process, obtain mixture A；
Step 2, adds mixture A by above-mentioned iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide
In, uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, slightly breaks after raw material natural cooling
Broken, obtain mixture B；
Step 3, by above-mentioned diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and
Aluminium sesquioxide adds in mixture B, uniform stirring, and carries out pre-burning under air, and calcined temperature is 1200-1300 DEG C, treats
Carry out coarse crushing after raw material natural cooling, obtain mixture C；
Step 4, by adding the water of 1-2 times in mixture B, carries out ball milling in being placed in ball mill, is milled to slurry particle diameter
For 0.8-1.2 μm, then it is dried in 100-110 DEG C, obtains mixture D；
Step 5, is placed in Muffle furnace calcining by mixture D, is warming up to 100-with the heating rate that 14-16 degree is per minute
110 DEG C, then natural cooling cooling, i.e. permanent-magnet ferrite magnetic material.
Embodiment 4
In the present embodiment, permanent-magnet ferrite magnetic material includes the component of following parts by weight: iron sesquioxide 100
Part, strontium carbonate 5 parts, boric acid 15, diboron trioxide 13 parts, magnesium oxide 1 part, Kaolin 10 parts, trimethylolpropane 6 parts, oxidation
Barium 9 parts, lanthana 3 parts, Dineodymium trioxide 15 parts, epoxy resin 8 parts, zinc oxide 16 parts, quartz 12 parts, copper oxide 6 parts, three oxidations
Two 2 parts of aluminum.
Refer to Fig. 1, the present embodiment uses the method preparing permanent-magnet ferrite magnetic material as follows, specifically include as follows
Step:
Step one, the zinc oxide taking above-mentioned strontium oxide, boric acid and 50% mixes, and heats at 1000-1200 DEG C
Process, obtain mixture A；
Step 2, adds mixture A by above-mentioned iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide
In, uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, slightly breaks after raw material natural cooling
Broken, obtain mixture B；
Step 3, by above-mentioned diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and
Aluminium sesquioxide adds in mixture B, uniform stirring, and carries out pre-burning under air, and calcined temperature is 1200-1300 DEG C, treats
Carry out coarse crushing after raw material natural cooling, obtain mixture C；
Step 4, by adding the water of 1-2 times in mixture B, carries out ball milling in being placed in ball mill, is milled to slurry particle diameter
For 0.8-1.2 μm, then it is dried in 100-110 DEG C, obtains mixture D；
Step 5, is placed in Muffle furnace calcining by mixture D, is warming up to 100-with the heating rate that 14-16 degree is per minute
110 DEG C, then natural cooling cooling, i.e. permanent-magnet ferrite magnetic material.
In order to verify the correlated performance of permanent-magnet ferrite magnetic material that the present invention provides, respectively to embodiment 1-embodiment
Permanent-magnet ferrite magnetic material in 4 is tested, and obtains such as the data of table 1.Wherein, magnetic energy product unit is kJ/m3, intrinsic strong
Stupid unit of force is kA/m, and remanent magnetization unit is mT.
Table 1
As shown in Table 1, the permanent-magnet ferrite magnetic material that the present invention provides is in magnetic energy product, HCJ and remanent magnetization
Intensity aspect is substantially better than Sr Ferrite Material powder commonly used in the art, especially in the permanent-magnet ferrite magnetic of embodiment 3
Material reaches optimal in this 3 various aspects of performance.Specifically, the permanent-magnet ferrite magnetic material that the present invention provides is on magnetic energy product
53.5kJ/m3 can be arrived, HCJ can reach 388.4kA/m, remanent magnetization can reach 553.9mT,
Considerably enhance the magnetic behavior of permanent-magnet ferrite magnetic material.
Applicants contemplate that, why the permanent-magnet ferrite magnetic material that the present invention provides can reach the magnetic of above-mentioned excellence
Performance, being because each component in the permanent-magnet ferrite magnetic material that the present invention provides is specific selection, and the content of respective component
Also it is just to obtain through the test of repeatedly repetition test.Remaining compositional selecting of the present invention and content select the most non-obvious
, those skilled in the art absolutely not combine prior art and can readily occur in.Meanwhile, can see in conjunction with embodiments of the invention
Arriving, the preparation method of the present invention uses five step designs, adds raw material by several times in batches, and the percentage ratio added has special model
Enclosing, this technique is that the special proportioning with permanent-magnet ferrite magnetic material component of the present invention adapts, only with using this technique,
The smooth sequential of guarantee reaction system is carried out, it is ensured that finally prepare the superior quality of permanent-magnet ferrite magnetic material.
Above description is only the preferred embodiment of the application and the explanation to institute's application technology principle.People in the art
Member should be appreciated that invention scope involved in the application, however it is not limited to the technology of the particular combination of above-mentioned technical characteristic
Scheme, also should contain in the case of without departing from described inventive concept simultaneously, above-mentioned technical characteristic or its equivalent feature carry out
Combination in any and other technical scheme of being formed.Such as features described above has similar merit with (but not limited to) disclosed herein
The technical scheme that the technical characteristic of energy is replaced mutually and formed.
Claims (6)
1. the preparation method of a permanent-magnet ferrite magnetic material, it is characterised in that described permanent-magnet ferrite magnetic material includes
The component of following parts by weight:
Iron sesquioxide 100 parts, strontium carbonate 3-5 part, boric acid 12-15, diboron trioxide 10-13 part, magnesium oxide 0.5-1 part, high
Ridge soil 6-10 part, trimethylolpropane 3-6 part, Barium monoxide 3-9 part, lanthana 1-3 part, Dineodymium trioxide 12-15 part, epoxy resin 2-
8 parts, zinc oxide 3-6 part, quartz 8-12 part, copper oxide 4-6 part, aluminium sesquioxide 1-2 part；
Described preparation method comprises the steps:
Step one, the zinc oxide taking above-mentioned strontium oxide, boric acid and 50% mixes, and heat treated at 1000-1200 DEG C,
Obtain mixture A；
Step 2, adds above-mentioned iron sesquioxide, trimethylolpropane, Barium monoxide, lanthana and Dineodymium trioxide in mixture A,
Uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, carries out coarse crushing after raw material natural cooling,
Obtain mixture B；
Step 3, by above-mentioned diboron trioxide, magnesium oxide, Kaolin, epoxy resin, zinc oxide, quartz, copper oxide and three oxygen
Change two aluminum and add in mixture B, uniform stirring, and carry out pre-burning under air, calcined temperature is 1200-1300 DEG C, treats raw material
Carry out coarse crushing after natural cooling, obtain mixture C；
Step 4, by adding the water of 1-2 times in mixture B, carries out ball milling in being placed in ball mill, and being milled to slurry particle diameter is
0.8-1.2 μm, is then dried in 100-110 DEG C, obtains mixture D；
Step 5, is placed in Muffle furnace calcining by mixture D, is warming up to 100-110 with the heating rate that 14-16 degree is per minute
DEG C, then natural cooling cooling, obtains described permanent-magnet ferrite magnetic material.
The preparation method of permanent-magnet ferrite magnetic material the most according to claim 1, it is characterised in that described permanent magnet oxygen
Body magnetic material includes the component of following parts by weight:
Iron sesquioxide 100 parts, strontium carbonate 4 parts, boric acid 14, diboron trioxide 12 parts, magnesium oxide 0.8 part, Kaolin 8 parts, three
Hydroxymethyl-propane 5 parts, Barium monoxide 6 parts, lanthana 2 parts, Dineodymium trioxide 13 parts, epoxy resin 5 parts, zinc oxide 4 parts, quartz 10
Part, copper oxide 5 parts, aluminium sesquioxide 1.5 parts.
The preparation method of permanent-magnet ferrite magnetic material the most according to claim 1, it is characterised in that in described step one
Heating-up temperature is 1100 DEG C.
The preparation method of permanent-magnet ferrite magnetic material the most according to claim 1, it is characterised in that described step 2 and
Described in described step 3, calcined temperature is all 1250 DEG C.
The preparation method of permanent-magnet ferrite magnetic material the most according to claim 1, it is characterised in that described slurry particle diameter
It it is 1 μm.
The preparation method of permanent-magnet ferrite magnetic material the most according to claim 1, it is characterised in that described permanent magnet oxygen
The magnetic energy product of body magnetic material is 51.0-53.5kJ/m3, HCJ is 381.3-388.4kA/m, and remanent magnetization is
532.6-553.9mT。
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| CN106709186A (en) * | 2016-12-27 | 2017-05-24 | 湖南航天磁电有限责任公司 | Aided design system for magnetic performance of permanent magnetic ferrite |
| CN108424135A (en) * | 2018-03-13 | 2018-08-21 | 海宁市天丰磁业有限公司 | A kind of preparation method of ferrite magnetic material |
| CN108640669A (en) * | 2018-06-20 | 2018-10-12 | 陕西理工大学 | A kind of high performance ferrite magnetic material and preparation method thereof |
| CN110642615A (en) * | 2019-10-25 | 2020-01-03 | 中磁电科有限公司 | Preparation method of permanent magnetic ferrite magnetic material |
| TWI706151B (en) * | 2019-08-14 | 2020-10-01 | 中國鋼鐵股份有限公司 | Magnetic evaluation method of permanent magnetic ferrite magnet |
| CN112489916A (en) * | 2020-12-01 | 2021-03-12 | 安徽中马磁能科技股份有限公司 | High-performance permanent magnetic ferrite and preparation process thereof |
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| CN112489916A (en) * | 2020-12-01 | 2021-03-12 | 安徽中马磁能科技股份有限公司 | High-performance permanent magnetic ferrite and preparation process thereof |
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