CN106699155A - Strontium ferrite magnetic powder additive - Google Patents
Strontium ferrite magnetic powder additive Download PDFInfo
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- CN106699155A CN106699155A CN201611192361.6A CN201611192361A CN106699155A CN 106699155 A CN106699155 A CN 106699155A CN 201611192361 A CN201611192361 A CN 201611192361A CN 106699155 A CN106699155 A CN 106699155A
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- strontium ferrite
- ferrite magnetic
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2683—Other ferrites containing alkaline earth metals or lead
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3215—Barium oxides or oxide-forming salts thereof
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- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3231—Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3239—Vanadium oxides, vanadates or oxide forming salts thereof, e.g. magnesium vanadate
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3298—Bismuth oxides, bismuthates or oxide forming salts thereof, e.g. zinc bismuthate
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C—CHEMISTRY; METALLURGY
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/444—Halide containing anions, e.g. bromide, iodate, chlorite
Abstract
The invention discloses a strontium ferrite magnetic powder additive and belongs to the technical field of magnetic material processing. The strontium ferrite magnetic powder additive is prepared from the following specific substances: bismuth trioxide, calcium chloride, vanadic oxide, magnesium oxide, sodium silicate, and barium carbonate. The prepared additive is capable of effectively improving the overall characteristic of the strontium ferrite magnetic powder, enhancing the intrinsic coercive force and magnetic remanence intensity thereof, reducing the processing temperature by about 200 DEG C and favorably saving the manufacturing cost, and is relatively high in popularization and use values.
Description
Technical field
The invention belongs to magnetic material processing technique field, and in particular to a kind of strontium ferrite magnetic powder additive.
Background technology
Magnetic material, usually said magnetic material refers to ferromagnetic substance, is ancient and the quite varied function of purposes
Material, and the magnetic of material was just recognized and was applied by people in the past early in 3000, such as ancient Chinese native magnet
As compass.Modem magnetic materials have been widely used among our life, for example, permanent-magnet material is used as into motor, should
For the core material in transformer, the magneto-optic disk used as memory, computer magnetic recording floppy disk etc..Ferrite permanent-magnet
Material is one kind of permanent-magnet material, and it is with BaFe12O19Phase, SrFe12O19The permanent magnetism material based on solid solution is mutually obtained with them
Material.A large amount of strategic materials such as nickel, cobalt have not only been saved in its appearance, and are hard magnetic material in high band, such as portion of television set
During part, microwave and the application of other national defence devices etc. opens new approach.Ferrite Material serves not only as telecommunication
The magnet of phonographic recorder, microphone, sound pick-up, telephone set and various instrument in device, and in pollution treatment, medical biotechnology
Also it is widely applied with the aspect such as typographical display.Strontium ferrite is the one kind in ferrite.Prepared in ferritic processing
When, it will usually some additives are added, the characteristic overall to improve made ferrite, now many additions three aoxidize second secretary composition, but
Its effect is more single, and the lifting for overall performance is limited, can not still meet the demand of people, required during its processing in addition
Temperature is still higher.
The content of the invention
The present invention is intended to provide a kind of strontium ferrite magnetic powder additive, can be effectively improved the comprehensive special of strontium ferrite material
Property, and overall processing cost can be reduced.
The present invention is achieved through the following technical solutions：
A kind of strontium ferrite magnetic powder additive, is made up of the material of following weight portion：
44 ~ 50 part of three oxidation second secretary, 12 ~ 16 parts of calcium chloride, 6 ~ 10 parts of vanadic anhydrides, 3 ~ 6 parts of magnesia, 4 ~ 7 parts of sodium metasilicate,
5 ~ 8 parts of barium carbonates.
Preferably, it is made up of the material of following weight portion：
47 part of three oxidation second secretary, 14 parts of calcium chloride, 8 parts of vanadic anhydrides, 5 parts of magnesia, 6 parts of sodium metasilicate, 7 parts of barium carbonates.
A kind of preparation method of strontium ferrite magnetic powder additive, comprises the following steps：
（1）First aoxidize second secretary, calcium chloride, vanadic anhydride, magnesia, sodium metasilicate and barium carbonate by three to mix jointly, stirring is equal
Mixture A is obtained after even standby；
（2）The 80 ~ 85% of mixture A gross masses are first taken, is placed under nitrogen environment, continuous ball mill grinding to granular size is
Mixture B is obtained after 10 ~ 20 μm standby, then the mixture A of residual mass is placed under nitrogen environment, continuous ball mill grinding to particle
Size is standby to obtain mixture C after 200 ~ 300nm；
（3）By step（2）The mixture B of gained mixes with mixture C, after being stirred with 2000 ~ 2200 revs/min of rotating speed
.
The present invention has the advantages that：
Additive of the present invention with three oxidation second secretarys be main component, reasonably combined calcium chloride, vanadic anhydride, magnesia, silicon
Sour sodium, barium carbonate, effectively improve the single problem of its performance, wherein the calcium chloride for adding, vanadic anhydride can be effectively improved
Overall magnetic conductivity, reduces by three oxidation second secretary part enrichments and causes potentially to reduce magnetic conductivity, deteriorates the problem of magnetic property, addition
Magnesia, sodium metasilicate can be lifted very well strontium ferrite magnetic powder sinter when compactness, further lift its magnetic property, addition
Barium carbonate can improve crystal grain thinning granularity, improve its coercivity, while after overall composition is carried out into grade separation ratio by granular size,
The porosity in crystal boundary and crystal grain can be effectively reduced, promotes the carrying out of solid phase reaction, the temperature value needed for reducing sintering enters one
Step improves overall processing characteristics and final product quality.Finally under the common mating reaction of each material composition, the present invention is obtained
Additive can be effectively improved the overall permanence of strontium ferrite magnetic powder, improve its HCJ and residual magnetization, and will plus
Work temperature reduces 200 DEG C or so, and manufacturing cost has been saved very well, and popularizing value is higher.
Specific embodiment
Embodiment 1
A kind of strontium ferrite magnetic powder additive, is made up of the material of following weight portion：
44 part of three oxidation second secretary, 12 parts of calcium chloride, 6 parts of vanadic anhydrides, 3 parts of magnesia, 4 parts of sodium metasilicate, 5 parts of barium carbonates.
A kind of preparation method of strontium ferrite magnetic powder additive, comprises the following steps：
（1）First aoxidize second secretary, calcium chloride, vanadic anhydride, magnesia, sodium metasilicate and barium carbonate by three to mix jointly, stirring is equal
Mixture A is obtained after even standby；
（2）First take the 83% of mixture A gross masses, be placed under nitrogen environment, continuous ball mill grinding to granular size be 10 ~
Mixture B is obtained after 20 μm standby, then the mixture A of residual mass is placed under nitrogen environment, continuous ball mill grinding is big to particle
It is small be after 200 ~ 300nm mixture C is standby；
（3）By step（2）The mixture B of gained mixes with mixture C, after being stirred with 2100 revs/min of rotating speed.
Embodiment 2
A kind of strontium ferrite magnetic powder additive, is made up of the material of following weight portion：
47 part of three oxidation second secretary, 14 parts of calcium chloride, 8 parts of vanadic anhydrides, 5 parts of magnesia, 6 parts of sodium metasilicate, 7 parts of barium carbonates.Its
Remaining method and step is with embodiment 1.
Embodiment 3
A kind of strontium ferrite magnetic powder additive, is made up of the material of following weight portion：
50 part of three oxidation second secretary, 16 parts of calcium chloride, 10 parts of vanadic anhydrides, 6 parts of magnesia, 7 parts of sodium metasilicate, 8 parts of barium carbonates.Its
Remaining method and step is with embodiment 1.
Comparative example 1
This comparative example 1 compared with Example 1, does not contain magnesia, sodium metasilicate, barium carbonate in its composition, side in addition
Method step all same.
Comparative example 2
This comparative example 2 does not carry out special gradation treatment compared with Example 2, in the preparation, by the equal powder of mixture A
It is 10 ~ 20 μm, method and step all same in addition to be broken to granular size.
Control group
Existing three conventional oxidation second secretary additives.
In order to contrast effect of the present invention, from a collection of strontium ferrite magnetic powder, the above-mentioned six kinds of modes pair of addition are corresponded to respectively
The additive answered carries out roasting shaping, and the addition mass fraction of wherein additive is 1%, counts manufacturing parameter and end properties,
Specific correction data is as shown in table 1 below：
Table 1
| Temperature needed for sintering（℃） | Remanent magnetism Br（Gs） | HCJ Hcj（Oe） | |
| Embodiment 1 | 920±10 | 5600±120 | 6.4×104 |
| Embodiment 2 | 900±8 | 5700±114 | 6.5×104 |
| Embodiment 3 | 920±10 | 5600±122 | 6.4×104 |
| Comparative example 1 | 1000±12 | 5100±110 | 5.8×104 |
| Comparative example 2 | 980±15 | 5200±105 | 6.0×104 |
| Control group | 1100±15 | 4800±110 | 5.4×104 |
By upper table 1 as can be seen that temperature needed for additive of the present invention can effectively reduce processing, reduces production cost, and can have
Effect improves the characteristic of strontium ferrite magnetic powder, and its use value is improved well.
Claims (3)
1. a kind of strontium ferrite magnetic powder additive, it is characterised in that be made up of the material of following weight portion：
44 ~ 50 part of three oxidation second secretary, 12 ~ 16 parts of calcium chloride, 6 ~ 10 parts of vanadic anhydrides, 3 ~ 6 parts of magnesia, 4 ~ 7 parts of sodium metasilicate,
5 ~ 8 parts of barium carbonates.
2. a kind of strontium ferrite magnetic powder additive according to claim 1, it is characterised in that by the material of following weight portion
It is made：
47 part of three oxidation second secretary, 14 parts of calcium chloride, 8 parts of vanadic anhydrides, 5 parts of magnesia, 6 parts of sodium metasilicate, 7 parts of barium carbonates.
3. a kind of preparation method of strontium ferrite magnetic powder additive as claimed in claim 1 or 2, it is characterised in that including such as
Lower step：
（1）First aoxidize second secretary, calcium chloride, vanadic anhydride, magnesia, sodium metasilicate and barium carbonate by three to mix jointly, stirring is equal
Mixture A is obtained after even standby；
（2）The 80 ~ 85% of mixture A gross masses are first taken, is placed under nitrogen environment, continuous ball mill grinding to granular size is
Mixture B is obtained after 10 ~ 20 μm standby, then the mixture A of residual mass is placed under nitrogen environment, continuous ball mill grinding to particle
Size is standby to obtain mixture C after 200 ~ 300nm；
（3）By step（2）The mixture B of gained mixes with mixture C, after being stirred with 2000 ~ 2200 revs/min of rotating speed
.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611192361.6A CN106699155A (en) | 2016-12-21 | 2016-12-21 | Strontium ferrite magnetic powder additive |
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| CN201611192361.6A CN106699155A (en) | 2016-12-21 | 2016-12-21 | Strontium ferrite magnetic powder additive |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108085110A (en) * | 2017-12-21 | 2018-05-29 | 贺州宝兴新材料有限公司 | A kind of magnetic melamine resin lubrication oil |
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| CN102129906A (en) * | 2011-03-05 | 2011-07-20 | 宜宾职业技术学院 | Permanent ferrite material additive and preparation method and application thereof |
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| CN104051115A (en) * | 2014-06-24 | 2014-09-17 | 铜陵三佳变压器有限责任公司 | Niobium-based ferrite core material used for transformer |
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| CN106145917A (en) * | 2016-06-23 | 2016-11-23 | 南京航空航天大学 | A kind of coercitive secondary of permanently magnetic strontium ferrite that improves is combined adding method |
-
2016
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| CN104051115A (en) * | 2014-06-24 | 2014-09-17 | 铜陵三佳变压器有限责任公司 | Niobium-based ferrite core material used for transformer |
| CN104078186A (en) * | 2014-06-27 | 2014-10-01 | 霍山东磁电子有限公司 | Zinc-base ferrite core material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108085110A (en) * | 2017-12-21 | 2018-05-29 | 贺州宝兴新材料有限公司 | A kind of magnetic melamine resin lubrication oil |
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