CN106348742A - Soft magnetic ferrite material with high magnetic conductivity and low temperature coefficient and preparation method thereof - Google Patents
Soft magnetic ferrite material with high magnetic conductivity and low temperature coefficient and preparation method thereof Download PDFInfo
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- CN106348742A CN106348742A CN201610719250.XA CN201610719250A CN106348742A CN 106348742 A CN106348742 A CN 106348742A CN 201610719250 A CN201610719250 A CN 201610719250A CN 106348742 A CN106348742 A CN 106348742A
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- Prior art keywords
- oxide
- soft magnetic
- low temperature
- raw material
- magnetic ferrite
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- 239000000463 material Substances 0.000 title claims abstract description 42
- 229910000859 α-Fe Inorganic materials 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 239000002994 raw material Substances 0.000 claims abstract description 44
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims abstract description 38
- 238000005245 sintering Methods 0.000 claims abstract description 38
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 32
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 32
- UPWOEMHINGJHOB-UHFFFAOYSA-N oxo(oxocobaltiooxy)cobalt Chemical compound O=[Co]O[Co]=O UPWOEMHINGJHOB-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 29
- 239000002131 composite material Substances 0.000 claims abstract description 28
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910001935 vanadium oxide Inorganic materials 0.000 claims abstract description 26
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims abstract description 24
- 239000011787 zinc oxide Substances 0.000 claims abstract description 19
- 239000011656 manganese carbonate Substances 0.000 claims abstract description 18
- 229940093474 manganese carbonate Drugs 0.000 claims abstract description 18
- 235000006748 manganese carbonate Nutrition 0.000 claims abstract description 18
- 229910000016 manganese(II) carbonate Inorganic materials 0.000 claims abstract description 18
- XMWCXZJXESXBBY-UHFFFAOYSA-L manganese(ii) carbonate Chemical compound [Mn+2].[O-]C([O-])=O XMWCXZJXESXBBY-UHFFFAOYSA-L 0.000 claims abstract description 18
- 229910000480 nickel oxide Inorganic materials 0.000 claims abstract description 18
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims abstract description 18
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 239000004408 titanium dioxide Substances 0.000 claims description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 18
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 18
- 229910052718 tin Inorganic materials 0.000 claims description 18
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 16
- 239000011236 particulate material Substances 0.000 claims description 11
- 238000010298 pulverizing process Methods 0.000 claims description 11
- 239000000377 silicon dioxide Substances 0.000 claims description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 8
- 239000011701 zinc Substances 0.000 claims description 8
- 229910052725 zinc Inorganic materials 0.000 claims description 8
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 7
- 239000005751 Copper oxide Substances 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910000416 bismuth oxide Inorganic materials 0.000 claims description 7
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 7
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 7
- 229910000431 copper oxide Inorganic materials 0.000 claims description 7
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 229940116364 hard fat Drugs 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 4
- 239000010941 cobalt Substances 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910052738 indium Inorganic materials 0.000 claims 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims 1
- 229910001930 tungsten oxide Inorganic materials 0.000 claims 1
- 239000007864 aqueous solution Substances 0.000 abstract 2
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 abstract 1
- NDLPOXTZKUMGOV-UHFFFAOYSA-N oxo(oxoferriooxy)iron hydrate Chemical compound O.O=[Fe]O[Fe]=O NDLPOXTZKUMGOV-UHFFFAOYSA-N 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 5
- 235000014692 zinc oxide Nutrition 0.000 description 5
- 235000021355 Stearic acid Nutrition 0.000 description 4
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 4
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 4
- 239000008117 stearic acid Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 235000013495 cobalt Nutrition 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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- 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
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2633—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing barium, strontium or calcium
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Abstract
The invention discloses a soft magnetic ferrite material with high magnetic conductivity and low temperature coefficient. The soft magnetic ferrite material is prepared from the following raw materials: ferric oxide, nickel oxide, zinc oxide, manganese carbonate, cobaltic oxide, vanadium oxide, tin dioxide, aluminum oxide, tungsten trioxide, chromium oxide and a composite sintering agent; and a polyvinyl alcohol aqueous solution and zinc stearate, wherein the content of the polyvinyl alcohol aqueous solution accounts for 3 to 5 percent of the total amount of the raw materials, and the content of the zinc stearate accounts for 0.5 to 1.5 percent of the total amount of the raw materials. The invention also provides a preparation method of the soft magnetic ferrite material with high magnetic conductivity and low temperature coefficient. The soft magnetic ferrite material prepared by the method is high in magnetic conductivity and low in temperature coefficient.
Description
Technical field
The present invention relates to a kind of soft magnetic ferrite and preparation method thereof, more particularly, to a kind of high magnetoconductivity low temperature degree system
Soft magnetic ferrite of number and preparation method thereof.
Background technology
With the fast development of digital communication technology and Fibre Optical Communication Technology, traditional artificial traffic equipment is continuously updated
Eliminate.In electronic circuit wide-band transformer, the pulse in the field such as ISDN(Integrated Service Digital Network), LAN, wide area network, background illumination becomes
The high magnetic conductivity ferrite magnetic core of common mode filtering inductance in depressor and photovoltaic DC-to-AC converter, because transformator etc. is sent out towards miniaturization
Exhibition, therefore requirements at the higher level are proposed to ferritic magnetic characteristic, particularly in the Current electronic information age, external environment various
Electronic interferences are increasingly serious, need ferrite to have high initial permeability, high saturated magnetic induction, high-curie temperature, high resistant
Resist and broadband properties.
The pcrmeability of soft magnetic ferrite of the prior art and temperature coefficient cannot meet the demand of prior art, therefore urgently
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient need to be designed to solve the problems of the prior art.
Content of the invention
For solving technical problem present in background technology, the present invention proposes a kind of soft magnetism of high magnetoconductivity low temperature degree coefficient
Ferrite Material and preparation method thereof, the soft magnetic ferrite pcrmeability preparing is high, and temperature coefficient is low.
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, molar part bag pressed by its raw material
Include: ferrum oxide 48.5-52.5 part, nickel oxide 16.5-19.5 part, zinc oxide 14.6-18.2 part, manganese carbonate 2.8-3.6 part, three oxygen
Change two cobalt 0.35-0.55 parts, vanadium oxide 0.05-0.15 part, tin ash 0.01-0.05 part, aluminium sesquioxide 0.005-0.015
Part, titanium dioxide 0.04-0.06 part, Tungstic anhydride. 0.02-0.04 part, chromium oxide 0.05-0.15 part, Composite sintering agent 0.25-
0.45 part；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3-5wt% of raw material total amount, Hard Fat
The content of sour zinc accounts for the 0.5-1.5wt% of raw material total amount.
Preferably, Composite sintering agent is by calcium fluoride, Calcium Carbonate, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide by weight
Mix than 1-3:2-5:3-6:1-4:3-8:2-6.
Preferably, in Composite sintering agent raw material, Calcium Carbonate adopts purity more than 99%, and granularity is less than the fine powder of 320 mesh.
Preferably, in Composite sintering agent raw material, the purity more than 94% of silicon dioxide, particle mean size is less than 1 μm.
Preferably, its raw material is included by molar part: ferrum oxide 49.5-51.5 part, nickel oxide 17.5-18.5 part, zinc oxide
15.6-17.2 part, manganese carbonate 2.9-3.5 part, cobalt sesquioxide 0.38-0.52 part, vanadium oxide 0.08-0.12 part, tin ash
0.02-0.04 part, aluminium sesquioxide 0.008-0.012 part, titanium dioxide 0.045-0.055 part, Tungstic anhydride. 0.025-0.035
Part, chromium oxide 0.08-0.12 part, Composite sintering agent 0.28-0.42 part；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3.5-4.5wt% of raw material total amount,
The content of zinc stearate accounts for the 0.8-1.2wt% of raw material total amount.
Preferably, its raw material is included by molar part: 50.5 parts of ferrum oxide, 18.0 parts of nickel oxide, 16.4 parts of zinc oxide, carbonic acid
3.2 parts of manganese, 0.45 part of cobalt sesquioxide, 0.10 part of vanadium oxide, 0.03 part of tin ash, 0.010 part of aluminium sesquioxide, titanium dioxide
0.05 part of titanium, 0.03 part of Tungstic anhydride., 0.10 part of chromium oxide, 0.35 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 4wt% of raw material total amount, stearic acid
The content of zinc accounts for the 1.0wt% of raw material total amount.
A kind of preparation method of the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, including as follows
Step:
S1, mixing: ferrum oxide, nickel oxide, zinc oxide, manganese carbonate and cobalt sesquioxide are put into vibromill in vibrating mill
1-2h, makes dispensing be sufficiently mixed and obtains material a；
S2, pre-burning: material a is carried out in pushed bat kiln pre-burning and obtain material b；
S3, pulverizing: add vanadium oxide, tin ash, aluminium sesquioxide, titanium dioxide, Tungstic anhydride. and oxygen in material b
Carry out waterproof pulverization after changing chromium, be subsequently adding zinc stearate and Composite sintering agent mix homogeneously obtains material c；
S4, pelletize: add the polyvinyl alcohol water solution of the 1.6-2.2% being equivalent to material c weight in material c, adopt
Mist projection granulating, obtains particulate material；
S5, compacting: the particulate material obtaining in s4 is obtained blank using powder former compacting；
S6, sintering: blank is put in resistance furnace and is sintered, sintering processes include: be warming up to 1200-1300
DEG C, it is incubated 10-30min, is then cooled to 1150-1180 DEG C, be incubated 2-4h, then 1280-1350 DEG C of intensification, be incubated 2-4h,
Then naturally cool to the soft magnetic ferrite that room temperature obtains high magnetoconductivity low temperature degree coefficient.
Preferably, in s2, calcined temperature is 1000-1100 DEG C, and burn-in time is 2-4h.
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient of the present invention, its raw material includes ferrum oxide, oxidation
Nickel, zinc oxide, manganese carbonate, cobalt sesquioxide, vanadium oxide, tin ash, aluminium sesquioxide, titanium dioxide, Tungstic anhydride., oxidation
Chromium, Composite sintering agent；Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3- of raw material total amount
5wt%, the content of zinc stearate accounts for the 0.5-1.5wt% of raw material total amount.By ferrum oxide, nickel oxide, zinc oxide, manganese carbonate and three
Aoxidize two cobalts and put into vibromill in vibrating mill, then carry out pre-burning, be subsequently added into vanadium oxide, tin ash, aluminium sesquioxide,
Carry out waterproof pulverization after titanium dioxide, Tungstic anhydride. and chromium oxide, be subsequently adding zinc stearate and Composite sintering agent mix homogeneously,
It is subsequently adding polyvinyl alcohol water solution and carries out pelletize, be pressed into blank after obtaining particulate material, be finally sintered, be cooled to
Room temperature obtains the soft magnetic ferrite of the high magnetoconductivity low temperature degree coefficient of the present invention, and wherein Composite sintering agent is by calcium fluoride, carbon
Sour calcium, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide mix, and the titanium dioxide adding wherein in raw material can be in crystal boundary
With calcium titanium-type resistive formation, ti4+Ion increase causes fe3+Ion reduces, fe2+Content increases, and controls fe2+Content just can adjust two
Peak position, ti4+And co2+The synergy of ion, forces down " hump " and can receive excellent effect, so ferritic temperature model
Enclose and be compensated regulation, be conducive to obtaining the wide temperature characteristics of material.The soft magnetic ferrite pcrmeability that the present invention prepares
Height, temperature coefficient is low.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail it should be appreciated that embodiment is served only for this is described
Bright, rather than be used for limiting the invention, any modification made on the basis of the present invention, equivalent etc. are all at this
In bright protection domain.
Embodiment 1
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, molar part bag pressed by its raw material
Include: 50.5 parts of ferrum oxide, 18.0 parts of nickel oxide, 16.4 parts of zinc oxide, 3.2 parts of manganese carbonate, 0.45 part of cobalt sesquioxide, vanadium oxide
0.10 part, 0.03 part of tin ash, 0.010 part of aluminium sesquioxide, 0.05 part of titanium dioxide, 0.03 part of Tungstic anhydride., chromium oxide
0.10 part, 0.35 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 4wt% of raw material total amount, stearic acid
The content of zinc accounts for the 1.0wt% of raw material total amount.
Embodiment 2
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, molar part bag pressed by its raw material
Include: 48.5 parts of ferrum oxide, 19.5 parts of nickel oxide, 14.6 parts of zinc oxide, 3.6 parts of manganese carbonate, 0.35 part of cobalt sesquioxide, vanadium oxide
0.15 part, 0.01 part of tin ash, 0.015 part of aluminium sesquioxide, 0.04 part of titanium dioxide, 0.04 part of Tungstic anhydride., chromium oxide
0.05 part, 0.45 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3wt% of raw material total amount, stearic acid
The content of zinc accounts for the 1.5wt% of raw material total amount.
Composite sintering agent is by calcium fluoride, Calcium Carbonate, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide by weight 1:5:
3:4:3:6 mixes.
Embodiment 3
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, molar part bag pressed by its raw material
Include: 52.5 parts of ferrum oxide, 16.5 parts of nickel oxide, 18.2 parts of zinc oxide, 2.8 parts of manganese carbonate, 0.55 part of cobalt sesquioxide, vanadium oxide
0.05 part, 0.05 part of tin ash, 0.005 part of aluminium sesquioxide, 0.06 part of titanium dioxide, 0.02 part of Tungstic anhydride., chromium oxide
0.15 part, 0.25 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 5wt% of raw material total amount, stearic acid
The content of zinc accounts for the 0.5wt% of raw material total amount.
Composite sintering agent is by calcium fluoride, Calcium Carbonate, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide by weight 3:2:
6:1:8:2 mixes.
A kind of preparation method of the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, including as follows
Step:
S1, mixing: ferrum oxide, nickel oxide, zinc oxide, manganese carbonate and cobalt sesquioxide are put into vibromill in vibrating mill
2h, makes dispensing be sufficiently mixed and obtains material a；
S2, pre-burning: material a is carried out in pushed bat kiln pre-burning and obtain material b, calcined temperature is 1000 DEG C, burn-in time
For 4h；
S3, pulverizing: add vanadium oxide, tin ash, aluminium sesquioxide, titanium dioxide, Tungstic anhydride. and oxygen in material b
Carry out waterproof pulverization after changing chromium, be subsequently adding zinc stearate and Composite sintering agent mix homogeneously obtains material c；
S4, pelletize: add be equivalent to material c weight 1.6% polyvinyl alcohol water solution in material c, using spraying
Pelletize, obtains particulate material；
S5, compacting: the particulate material obtaining in s4 is obtained blank using powder former compacting；
S6, sintering: blank is put in resistance furnace and is sintered, sintering processes include: be warming up to 1300 DEG C, insulation
10min, is then cooled to 1180 DEG C, is incubated 2h, then heats up 1350 DEG C, is incubated 2h, then naturally cools to room temperature and obtain height
The soft magnetic ferrite of magnetoconductivity low temperature degree coefficient.
Embodiment 4
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, molar part bag pressed by its raw material
Include: 49.5 parts of ferrum oxide, 18.5 parts of nickel oxide, 15.6 parts of zinc oxide, 3.5 parts of manganese carbonate, 0.38 part of cobalt sesquioxide, vanadium oxide
0.12 part, 0.02 part of tin ash, 0.012 part of aluminium sesquioxide, 0.045 part of titanium dioxide, 0.035 part of Tungstic anhydride., oxidation
0.08 part of chromium, 0.42 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3.5wt% of raw material total amount, Hard Fat
The content of sour zinc accounts for the 1.2wt% of raw material total amount.
Composite sintering agent is by calcium fluoride, Calcium Carbonate, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide by weight 1.5:
4:4:3:4:5 mixes.
A kind of preparation method of the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, including as follows
Step:
S1, mixing: ferrum oxide, nickel oxide, zinc oxide, manganese carbonate and cobalt sesquioxide are put into vibromill in vibrating mill
1.2-1.8h, makes dispensing be sufficiently mixed and obtains material a；
S2, pre-burning: material a is carried out in pushed bat kiln pre-burning and obtain material b, calcined temperature is 1020 DEG C, burn-in time
For 3.5h；
S3, pulverizing: add vanadium oxide, tin ash, aluminium sesquioxide, titanium dioxide, Tungstic anhydride. and oxygen in material b
Carry out waterproof pulverization after changing chromium, be subsequently adding zinc stearate and Composite sintering agent mix homogeneously obtains material c；
S4, pelletize: add be equivalent to material c weight 1.7% polyvinyl alcohol water solution in material c, using spraying
Pelletize, obtains particulate material；
S5, compacting: the particulate material obtaining in s4 is obtained blank using powder former compacting；
S6, sintering: blank is put in resistance furnace and is sintered, sintering processes include: be warming up to 1280 DEG C, insulation
15min, is then cooled to 1175 DEG C, is incubated 2.5h, then heats up 1340 DEG C, is incubated 2.5h, then naturally cools to room temperature and obtain
Soft magnetic ferrite to high magnetoconductivity low temperature degree coefficient.
Embodiment 5
A kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, molar part bag pressed by its raw material
Include: 51.5 parts of ferrum oxide, 17.5 parts of nickel oxide, 17.2 parts of zinc oxide, 2.9 parts of manganese carbonate, 0.52 part of cobalt sesquioxide, vanadium oxide
0.08 part, 0.04 part of tin ash, 0.008 part of aluminium sesquioxide, 0.055 part of titanium dioxide, 0.025 part of Tungstic anhydride., oxidation
0.12 part of chromium, 0.28 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 4.5wt% of raw material total amount, Hard Fat
The content of sour zinc accounts for the 0.8wt% of raw material total amount.
Composite sintering agent is by calcium fluoride, Calcium Carbonate, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide by weight 2.5:
3:5:2:7:3 mixes.
A kind of preparation method of the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient proposed by the present invention, including as follows
Step:
S1, mixing: ferrum oxide, nickel oxide, zinc oxide, manganese carbonate and cobalt sesquioxide are put into vibromill in vibrating mill
1.8h, makes dispensing be sufficiently mixed and obtains material a；
S2, pre-burning: material a is carried out in pushed bat kiln pre-burning and obtain material b, calcined temperature is 1020 DEG C, burn-in time
For 3.5h；
S3, pulverizing: add vanadium oxide, tin ash, aluminium sesquioxide, titanium dioxide, Tungstic anhydride. and oxygen in material b
Carry out waterproof pulverization after changing chromium, be subsequently adding zinc stearate and Composite sintering agent mix homogeneously obtains material c；
S4, pelletize: add be equivalent to material c weight 1.7% polyvinyl alcohol water solution in material c, using spraying
Pelletize, obtains particulate material；
S5, compacting: the particulate material obtaining in s4 is obtained blank using powder former compacting；
S6, sintering: blank is put in resistance furnace and is sintered, sintering processes include: be warming up to 1280 DEG C, insulation
15min, is then cooled to 1175 DEG C, is incubated 2.5h, then heats up 1340 DEG C, is incubated 2.5h, then naturally cools to room temperature and obtain
Soft magnetic ferrite to high magnetoconductivity low temperature degree coefficient.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any those familiar with the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept equivalent or change in addition, all should be included within the scope of the present invention.
Claims (8)
1. a kind of soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient is it is characterised in that its raw material is included by molar part: oxygen
Change ferrum 48.5-52.5 part, nickel oxide 16.5-19.5 part, zinc oxide 14.6-18.2 part, manganese carbonate 2.8-3.6 part, three oxidations two
Cobalt 0.35-0.55 part, vanadium oxide 0.05-0.15 part, tin ash 0.01-0.05 part, aluminium sesquioxide 0.005-0.015 part,
Titanium dioxide 0.04-0.06 part, Tungstic anhydride. 0.02-0.04 part, chromium oxide 0.05-0.15 part, Composite sintering agent 0.25-0.45
Part；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3-5wt% of raw material total amount, zinc stearate
Content account for the 0.5-1.5wt% of raw material total amount.
2. the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient according to claim 1 is it is characterised in that compound burn
Knot agent is by calcium fluoride, Calcium Carbonate, silicon dioxide, copper oxide, bismuth oxide and vanadium oxide by weight 1-3:2-5:3-6:1-4:3-
8:2-6 mixes.
3. the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient according to claim 1 and 2 is it is characterised in that answer
Close in agglutinant raw material, Calcium Carbonate adopts purity more than 99%, granularity is less than the fine powder of 320 mesh.
4. the soft magnetic ferrite of the high magnetoconductivity low temperature degree coefficient according to any one of claim 1-3, its feature exists
In, in Composite sintering agent raw material, the purity more than 94% of silicon dioxide, particle mean size is less than 1 μm.
5. the soft magnetic ferrite of the high magnetoconductivity low temperature degree coefficient according to any one of claim 1-4, its feature exists
In its raw material is included by molar part: ferrum oxide 49.5-51.5 part, nickel oxide 17.5-18.5 part, zinc oxide 15.6-17.2 part,
Manganese carbonate 2.9-3.5 part, cobalt sesquioxide 0.38-0.52 part, vanadium oxide 0.08-0.12 part, tin ash 0.02-0.04 part,
Aluminium sesquioxide 0.008-0.012 part, titanium dioxide 0.045-0.055 part, Tungstic anhydride. 0.025-0.035 part, chromium oxide
0.08-0.12 part, Composite sintering agent 0.28-0.42 part；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 3.5-4.5wt% of raw material total amount, Hard Fat
The content of sour zinc accounts for the 0.8-1.2wt% of raw material total amount.
6. the soft magnetic ferrite of the high magnetoconductivity low temperature degree coefficient according to any one of claim 1-5, its feature exists
In its raw material is included by molar part: 50.5 parts of ferrum oxide, 18.0 parts of nickel oxide, 16.4 parts of zinc oxide, 3.2 parts of manganese carbonate, three oxygen
Change 0.45 part of two cobalt, 0.10 part of vanadium oxide, 0.03 part of tin ash, 0.010 part of aluminium sesquioxide, 0.05 part of titanium dioxide, three
0.03 part of tungsten oxide, 0.10 part of chromium oxide, 0.35 part of Composite sintering agent；
Polyvinyl alcohol water solution and zinc stearate, the content of polyvinyl alcohol water solution accounts for the 4wt% of raw material total amount, zinc stearate
Content accounts for the 1.0wt% of raw material total amount.
7. the preparation of the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient described in a kind of any one according to claim 1-6
Method is it is characterised in that comprise the steps:
S1, mixing: ferrum oxide, nickel oxide, zinc oxide, manganese carbonate and cobalt sesquioxide are put into vibromill 1- in vibrating mill
2h, makes dispensing be sufficiently mixed and obtains material a；
S2, pre-burning: material a is carried out in pushed bat kiln pre-burning and obtain material b；
S3, pulverizing: add vanadium oxide, tin ash, aluminium sesquioxide, titanium dioxide, Tungstic anhydride. and chromium oxide in material b
After carry out waterproof pulverization, be subsequently adding zinc stearate and Composite sintering agent mix homogeneously obtain material c；
S4, pelletize: add the polyvinyl alcohol water solution of the 1.6-2.2% being equivalent to material c weight in material c, using spraying
Pelletize, obtains particulate material；
S5, compacting: the particulate material obtaining in s4 is obtained blank using powder former compacting；
S6, sintering: blank is put in resistance furnace and is sintered, sintering processes include: be warming up to 1200-1300 DEG C, protect
Warm 10-30min, is then cooled to 1150-1180 DEG C, is incubated 2-4h, then 1280-1350 DEG C of intensification, is incubated 2-4h, then certainly
So it is cooled to the soft magnetic ferrite that room temperature obtains high magnetoconductivity low temperature degree coefficient.
8. the preparation method of the soft magnetic ferrite of high magnetoconductivity low temperature degree coefficient according to claim 7, its feature
It is, in s2, calcined temperature is 1000-1100 DEG C, burn-in time is 2-4h.
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