CN108083793A - The formula and compounding method of a kind of ferrite permanent-magnet materials - Google Patents

The formula and compounding method of a kind of ferrite permanent-magnet materials Download PDF

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CN108083793A
CN108083793A CN201711387547.1A CN201711387547A CN108083793A CN 108083793 A CN108083793 A CN 108083793A CN 201711387547 A CN201711387547 A CN 201711387547A CN 108083793 A CN108083793 A CN 108083793A
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ferrite permanent
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朱小英
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Ningbo City Yinzhou Zhi Companion Mdt Infotech Ltd
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    • 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
    • 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
    • H01F1/11—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 in the form of particles
    • 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
    • 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
    • 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
    • C04B2235/3232—Titanium oxides or titanates, e.g. rutile or anatase
    • 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
    • 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
    • C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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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
    • C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442—Carbonates
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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
    • C04B2235/448—Sulphates or sulphites
    • C—CHEMISTRY; METALLURGY
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
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  • Organic Chemistry (AREA)
  • Hard Magnetic Materials (AREA)
  • Compounds Of Iron (AREA)

Abstract

The invention discloses the formula and compounding method of a kind of ferrite permanent-magnet materials, the group ingredient including following weight percent：Iron oxide red 60%~80%, barium carbonate 10~15%, silica 5~10%, calcium carbonate 3~8%, strontium sulfate 5~10%, titanium dioxide 15~20%, rust remover 5~10%.Calcium carbonate is added, is conducive to the progress of solid phase reaction, product is reduced and is sintered required temperature, increase product compactness extent；Strontium sulfate is added, is conducive to be significantly improved to ferritic anisotropy orientation degree while can inhibit crystal grain to grow up, improves coercivity；Titanium dioxide and rust remover are added, is conducive to be removed the rusty stain on ferrite permanent-magnet materials surface, prevents rusty stain to magnetic influence.

Description

The formula and compounding method of a kind of ferrite permanent-magnet materials
Technical field
The present invention relates to a kind of ferrite permanent-magnet materials, and in particular to a kind of formula of ferrite permanent-magnet materials and prepares Method.
Background technology
Permanent-magnet material has wide hysteresis loop, high-coercive force, high remanent magnetism, and magnetic material can be kept constant once magnetization Material.Also known as hard magnetic material.In practicality, the second quadrant demagnetization of hysteresis loop after permanent-magnet material works in depth magnetic saturation and magnetizes Part.Common permanent-magnet material is divided into Al-Ni-Co series permanent-magnet alloy, siderochrome cobalt system permanent-magnet alloy, permanent-magnet ferrite, rare earth permanent magnet Material and composite permanent-magnetic material.Permanent-magnet material includes ferrite permanent-magnet, rare earth permanent magnet (Rare-Earth Cobalt, neodymium iron boron etc.), aluminium nickel cobalt, iron The materials such as chromium cobalt, ferro-aluminum, most common of which, dosage it is maximum be ferrite permanent-magnet, Nd-Fe-B rare-earth permanent magnet.Ferrite permanent-magnet exists In permanent-magnet material, although comprehensive magnetic can be relatively low, compared with metal permanent magnetism, resistivity is high, and stability is good, resistance to environmental change By force, raw material sources enrich, performance and price is higher, technical maturity, and there is no problem of oxidation, therefore should in many of permanent-magnet material It is still optimal preferred permanent-magnet material with field.Ferrite permanent-magnet is since the fifties produces in batches, and growth momentum is very Rapidly, the output value is about 1.5 times of rare earth permanent magnet at present, it is contemplated that from now in longer period of time, it will be most widely used, demand Measure maximum permanent-magnet material.But the existing more crisp magnetism of ferrite permanent-magnet materials material is relatively low, while cannot carry out self-cleaning and anti- The effect of rust, causes ferrite permanent-magnet materials inconvenient problem with use.
The content of the invention
It is an object of the invention to provide a kind of formula of ferrite permanent-magnet materials, to improve the knot of ferrite permanent-magnet materials Structure hardness, magnetic intensity, while can cause ferrite permanent-magnet materials surface cleaning derusting degree.
In order to solve the above technical problem, the present invention provides following technical solutions：
The present invention provides a kind of formula of ferrite permanent-magnet materials, the collocation method is as follows：
Step 1：Barium carbonate and iron oxide red are pressed 1：5 ratio mixing, is stirred 10~20 minutes so that barium carbonate and iron oxide red It is evenly distributed, pours into container bottle；
Step 2：Silica is added in the container bottle described in step 1, is stirred 5~10 minutes so that silica It is evenly distributed；
Step 3：Calcium carbonate is heated 800 °~1000 °, time control was at 15~30 minutes so that calcium carbonate forms molten Liquid；
Step 4：Solution described in step 3 is cooled to 20 °~26 °, solid is formed, and stirs into particulate matter；
Step 5：Particulate matter described in step 4 is added in the container bottle described in step 2, stirs 5~10 minutes, makes It is uniform to obtain Particle distribution；
Step 6：Strontium sulfate is put into smelting furnace and is warmed to 1200 °~1400 °, time control was incited somebody to action at 10~15 minutes Container internal particle object described in step 5 is added in smelting furnace, and temperature is controlled at 800 °~1200 °, and time control is at 20~30 points Clock；
Step 7：Smelting furnace described in step 6 is cooled down, temperature control at 100 °~150 °, time control 25~ 30 minutes；
Step 8：Inside furnace substance described in step 7 is poured into cooling tank and is cooled down, cooling time is controlled 3 ~6 it is small when.
Step 9：Substance in cooling tank described in step 8 is put into agitator tank, stir 30~50 minutes, make its into Granulated powder, and pour into preserving jar；
Step 10：It is added in after titanium dioxide and rust remover are mixed in the preserving jar described in step 9, after stirring evenly i.e. It can.
As a preferred technical solution of the present invention, the group ingredient including following weight percent：Iron oxide red 60%~ 80%, barium carbonate 10~15%, silica 5~10%, calcium carbonate 3~8%, strontium sulfate 5~10%, titanium dioxide 15~ 20%, rust remover 5~10%.
As a preferred technical solution of the present invention, the titanium dioxide is Nano titanium dioxide.
As a preferred technical solution of the present invention, the iron oxide red should select the iron oxide red that purity is more than more than 97%.
As a preferred technical solution of the present invention, the calcium carbonate preparation method：The raw materials such as lime stone are calcined and are given birth to Into lime and carbon dioxide, digestion lime generation milk of lime is added water, is then passed through carbon dioxide carbonization milk of lime generation carbon again Sour calcium precipitate, most afterwards through dehydration, it is dry and crush and be made.
As a preferred technical solution of the present invention, the strontium sulfate preparation method：Using the high celestite ore of grade Stone is raw material, after being cleaned, is ground, is ground into powder.
In technical scheme, calcium carbonate starts to decompose at 800 DEG C or so, in product sintering process, compared with low temperature The lower calcium carbonate of degree molten condition, be conducive to the progress of solid phase reaction, reduce product and be sintered required temperature, increase product Compactness extent.When adding in the calcium carbonate of 0.2%-1.0% in permanent-magnet ferrite material, structural strength has certain increase, and Coercivity is without being decreased obviously；Strontium sulfate decomposition temperature adds in a small amount of sulfuric acid at 1400 DEG C or more in strontium ferrite Primary batching system Strontium, a portion are solid-solubilized in ferrite, are formed free energy, are significantly improved to ferritic anisotropy orientation degree, no The part being dissolved in ferrite becomes thin dispersant, can inhibit crystal grain and grows up, and improves coercivity.Experiment is found, adds in 0.5- 1.0% strontium sulfate, the remanent magnetism and coercivity of strontium ferrite material improve；Titanium dioxide is in the effect of ultraviolet light Under, strong catalytic degradation function is generated, the rusty stain on ferrite permanent-magnet materials surface can be removed with reference to rust remover, prevented Rusty stain is to magnetic influence.
The advantageous effect that is reached of the present invention is：The device is a kind of formula of ferrite permanent-magnet materials, adds calcium carbonate, Be conducive to the progress of solid phase reaction, reduce product and be sintered required temperature, increase product compactness extent；Strontium sulfate is added, is had It grows up beneficial to being significantly improved to ferritic anisotropy orientation degree while can inhibit crystal grain, improves coercivity；Add dioxy Change titanium and rust remover, be conducive to be removed the rusty stain on ferrite permanent-magnet materials surface, prevent rusty stain from, to magnetic influence, carrying A kind of formula of ferrite permanent-magnet materials is supplied.Present invention design is reasonable, simple in structure, safe and reliable, easy to use, is easy to tie up Shield, has good value for applications.
In addition to objects, features and advantages described above, the present invention also has other objects, features and advantages. Below by embodiment, the present invention is described in further detail.
Specific embodiment
Embodiment 1
The present invention provides a kind of formula of ferrite permanent-magnet materials, the group ingredient including following weight percent：Iron oxide red 60%, barium carbonate 10%, silica 5%, calcium carbonate 3%, strontium sulfate 5%, titanium dioxide 1%, rust remover 5%.
Collocation method is as follows：
Step 1：Barium carbonate and iron oxide red are pressed 1：5 ratio mixing, is stirred 10 minutes so that barium carbonate and iron oxide red distribution Uniformly, pour into container bottle；
Step 2：Silica is added in the container bottle described in step 1, is stirred 5 minutes so that silica is distributed Uniformly；
Step 3：Calcium carbonate is heated 1000 °, time control was at 30 minutes so that calcium carbonate forms solution；
Step 4：Solution described in step 3 is cooled to 26 °, solid is formed, and stirs into particulate matter；
Step 5：Particulate matter described in step 4 is added in the container bottle described in step 2, is stirred 10 minutes so that Grain object is evenly distributed；
Step 6：Strontium sulfate is put into smelting furnace and is warmed to 1400 °, time control, and will be described in step 5 at 15 minutes Container internal particle object add in smelting furnace in, temperature control at 1200 °, time control was at 30 minutes；
Step 7：Smelting furnace described in step 6 is cooled down, temperature is controlled at 150 °, and time control was at 30 minutes；
Step 8：Inside furnace substance described in step 7 is poured into cooling tank and is cooled down, cooling time is controlled 6 Hour.
Step 9：Substance in cooling tank described in step 8 is put into agitator tank, stir 30~50 minutes, make its into Granulated powder, and pour into preserving jar；
Step 10：It is added in after titanium dioxide and rust remover are mixed in the preserving jar described in step 9, after stirring evenly i.e. It can.
Embodiment 2
The present invention provides a kind of formula of ferrite permanent-magnet materials, the group ingredient including following weight percent：Iron oxide red 70%, barium carbonate 12%, silica 8%, calcium carbonate 5%, strontium sulfate 7%, titanium dioxide 17%, rust remover 8%.
Collocation method is as follows：
Step 1：Barium carbonate and iron oxide red are pressed 1：5 ratio mixing, is stirred 10 minutes so that barium carbonate and iron oxide red distribution Uniformly, pour into container bottle；
Step 2：Silica is added in the container bottle described in step 1, is stirred 5 minutes so that silica is distributed Uniformly；
Step 3：Calcium carbonate is heated 1000 °, time control was at 30 minutes so that calcium carbonate forms solution；
Step 4：Solution described in step 3 is cooled to 26 °, solid is formed, and stirs into particulate matter；
Step 5：Particulate matter described in step 4 is added in the container bottle described in step 2, is stirred 10 minutes so that Grain object is evenly distributed；
Step 6：Strontium sulfate is put into smelting furnace and is warmed to 1400 °, time control, and will be described in step 5 at 15 minutes Container internal particle object add in smelting furnace in, temperature control at 1200 °, time control was at 30 minutes；
Step 7：Smelting furnace described in step 6 is cooled down, temperature is controlled at 150 °, and time control was at 30 minutes；
Step 8：Inside furnace substance described in step 7 is poured into cooling tank and is cooled down, cooling time is controlled 6 Hour.
Step 9：Substance in cooling tank described in step 8 is put into agitator tank, stir 30~50 minutes, make its into Granulated powder, and pour into preserving jar；
Step 10：It is added in after titanium dioxide and rust remover are mixed in the preserving jar described in step 9, after stirring evenly i.e. It can.
Embodiment 3
The present invention provides a kind of formula of ferrite permanent-magnet materials, the group ingredient including following weight percent：Iron oxide red 70%, barium carbonate 16%, silica 1 0%, calcium carbonate 8%, strontium sulfate 8%, titanium dioxide 15%, rust remover 8%.
Collocation method is as follows：
Step 1：Barium carbonate and iron oxide red are pressed 1：5 ratio mixing, is stirred 10 minutes so that barium carbonate and iron oxide red distribution Uniformly, pour into container bottle；
Step 2：Silica is added in the container bottle described in step 1, is stirred 5 minutes so that silica is distributed Uniformly；
Step 3：Calcium carbonate is heated 1000 °, time control was at 30 minutes so that calcium carbonate forms solution；
Step 4：Solution described in step 3 is cooled to 26 °, solid is formed, and stirs into particulate matter；
Step 5：Particulate matter described in step 4 is added in the container bottle described in step 2, is stirred 10 minutes so that Grain object is evenly distributed；
Step 6：Strontium sulfate is put into smelting furnace and is warmed to 1400 °, time control, and will be described in step 5 at 15 minutes Container internal particle object add in smelting furnace in, temperature control at 1200 °, time control was at 30 minutes；
Step 7：Smelting furnace described in step 6 is cooled down, temperature is controlled at 150 °, and time control was at 30 minutes；
Step 8：Inside furnace substance described in step 7 is poured into cooling tank and is cooled down, cooling time is controlled 6 Hour.
Step 9：Substance in cooling tank described in step 8 is put into agitator tank, stir 30~50 minutes, make its into Granulated powder, and pour into preserving jar；
Step 10：It is added in after titanium dioxide and rust remover are mixed in the preserving jar described in step 9, after stirring evenly i.e. It can.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to limit the invention, Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, still may be used To modify to the technical solution recorded in foregoing embodiments or carry out equivalent substitution to which part technical characteristic. Within the spirit and principles of the invention, any modifications, equivalent replacements and improvements are made should be included in the present invention's Within protection domain.

Claims (6)

1. a kind of formula of ferrite permanent-magnet materials, which is characterized in that the collocation method is as follows：
Step 1：Barium carbonate and iron oxide red are pressed 1：5 ratio mixing, is stirred 10~20 minutes so that barium carbonate and iron oxide red distribution Uniformly, pour into container bottle；
Step 2：Silica is added in the container bottle described in step 1, is stirred 5~10 minutes so that silica is distributed Uniformly；
Step 3：Calcium carbonate is heated 800 °~1000 °, time control was at 15~30 minutes so that calcium carbonate forms solution；
Step 4：Solution described in step 3 is cooled to 20 °~26 °, solid is formed, and stirs into particulate matter；
Step 5：Particulate matter described in step 4 is added in the container bottle described in step 2, is stirred 5~10 minutes so that Grain object is evenly distributed；
Step 6：Strontium sulfate is put into smelting furnace and is warmed to 1200 °~1400 °, time control was at 10~15 minutes, and by step Container internal particle object described in five is added in smelting furnace, and temperature is controlled at 800 °~1200 °, and time control was at 20~30 minutes；
Step 7：Smelting furnace described in step 6 is cooled down, temperature is controlled at 100 °~150 °, and time control is at 25~30 points Clock；
Step 8：Inside furnace substance described in step 7 is poured into cooling tank and is cooled down, cooling time is controlled 3~6 Hour.
Step 9：Substance in cooling tank described in step 8 is put into agitator tank, stirs 30~50 minutes, makes it into particle It is powdered, and pour into preserving jar；
Step 10：It is added in after titanium dioxide and rust remover are mixed in the preserving jar described in step 9, after stirring evenly.
2. the formula of a kind of ferrite permanent-magnet materials according to claim 1, which is characterized in that including following weight percent The group ingredient of ratio：Iron oxide red 60%~80%, barium carbonate 10~15%, silica 5~10%, calcium carbonate 3~8%, strontium sulfate 5 ~10%, titanium dioxide 15~20%, rust remover 5~10%.
3. the formula of a kind of ferrite permanent-magnet materials according to claim 1, which is characterized in that the titanium dioxide is to receive Meter level titanium dioxide.
4. the formula of a kind of ferrite permanent-magnet materials according to claim 1-3, which is characterized in that the iron oxide red should select Purity is more than more than 97% iron oxide red.
5. the formula of a kind of ferrite permanent-magnet materials according to claim 1-4, which is characterized in that prepared by the calcium carbonate Method：The raw materials such as lime stone are calcined into generation lime and carbon dioxide, digestion lime generation milk of lime is added water, is then passed through again Carbon dioxide carbonization milk of lime generation precipitation of calcium carbonate, most afterwards through dehydration, it is dry and crush and be made.
6. the formula of a kind of ferrite permanent-magnet materials according to claim 1-5, which is characterized in that prepared by the strontium sulfate Method：The celestine ore for using grade high after being cleaned, is ground, is ground into powder for raw material.
CN201711387547.1A 2017-12-20 2017-12-20 The formula and compounding method of a kind of ferrite permanent-magnet materials Withdrawn CN108083793A (en)

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Publication number Priority date Publication date Assignee Title
CN110642615A (en) * 2019-10-25 2020-01-03 中磁电科有限公司 Preparation method of permanent magnetic ferrite magnetic material

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CN1057495A (en) * 1991-05-14 1992-01-01 沈阳电镀厂 Nickle electric-plating method of rare earth permanent magnetic body
US20040166359A1 (en) * 2003-02-25 2004-08-26 A.L.M.T. Corporation Coated refractory metal plate having oxide surface layer, and setter which uses the same and which is used in sintering
CN1450022A (en) * 2003-04-30 2003-10-22 武汉众兴磁业技术开发有限公司 Productive method of sintering anisotropic permanent magnetic ferrite
CN101205138A (en) * 2007-03-23 2008-06-25 横店集团东磁股份有限公司 Method for manufacturing sintered permanent magnetic ferrite powder
CN101202138A (en) * 2007-09-30 2008-06-18 常州迪迩磁性材料有限公司 Permanent ferrite magnetic tile and preparation method thereof
CN101226800A (en) * 2007-12-03 2008-07-23 李青 Surface treating method for sintering type Nd iron boron permanent magnetic material
CN101445363A (en) * 2008-12-05 2009-06-03 北矿磁材科技股份有限公司 Rubber ferromagnetic oxide powder and preparation method thereof
CN102443834A (en) * 2011-12-12 2012-05-09 南昌航空大学 Preparation method of particle-enhanced organic anticorrosive coating on surface of neodymium-iron-boron permanent magnet material
CN103745798A (en) * 2014-01-09 2014-04-23 浙江和也健康科技有限公司 Rare earth flexible magnetic stripe for health bedding and preparation method thereof
CN107417270A (en) * 2016-05-24 2017-12-01 江苏美佳马达有限公司 A kind of preparation method of slug type calcium lanthanum ferrite permanent-magnet materials
CN106699156A (en) * 2016-12-26 2017-05-24 浙江中科磁业有限公司 Permanent magnetic ferrite production method

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