CN105503170A - Soft magnetic ferrite with wide temperature, low loss and high permeability as well as preparation method of soft magnetic ferrite - Google Patents
Soft magnetic ferrite with wide temperature, low loss and high permeability as well as preparation method of soft magnetic ferrite Download PDFInfo
- Publication number
- CN105503170A CN105503170A CN201510977064.1A CN201510977064A CN105503170A CN 105503170 A CN105503170 A CN 105503170A CN 201510977064 A CN201510977064 A CN 201510977064A CN 105503170 A CN105503170 A CN 105503170A
- Authority
- CN
- China
- Prior art keywords
- magnetic ferrite
- preparation
- temperature
- wide
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C04B35/2658—Other ferrites containing manganese or zinc, e.g. Mn-Zn ferrites
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
- C04B35/62605—Treating the starting powders individually or as mixtures
- C04B35/62645—Thermal treatment of powders or mixtures thereof other than sintering
- C04B35/62675—Thermal treatment of powders or mixtures thereof other than sintering characterised by the treatment temperature
-
- 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
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3208—Calcium oxide or oxide-forming salts thereof, e.g. lime
-
- 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
- C04B2235/32—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
-
- 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
- C04B2235/327—Iron group oxides, their mixed metal oxides, or oxide-forming salts thereof
- C04B2235/3275—Cobalt oxides, cobaltates or cobaltites or oxide forming salts thereof, e.g. bismuth cobaltate, zinc cobaltite
-
- 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
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
-
- 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
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
- C04B2235/6583—Oxygen containing atmosphere, e.g. with changing oxygen pressures
-
- 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
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
Abstract
The invention discloses soft magnetic ferrite with the wide temperature, low loss and high permeability as well as a preparation method of the soft magnetic ferrite. The soft magnetic ferrite comprises a main body system and an auxiliary system, wherein the main body system comprises 65-68mol% of Fe2O3 and 23-25mol% of ZnO and MnO; the auxiliary system comprises CaCO3, SiO2, TiO2 and Co2O3. The preparation method comprises steps as follows: (1) mixing and grinding; (2) pre-sintering; (3) addition of a doping system; (4) blank preparation; (5) sintering molding. The preparation method is simple to operate and easy to implement, through the scientific formula design and reasonable preparation technology adjustment, particularly setting of the pre-sintering temperature and sintering temperature, the prepared soft magnetic ferrite can be used in the wide temperature range of subzero 35-100 DEG C stably and has lower power loss and excellent comprehensive properties.
Description
Technical field
The present invention relates to soft magnetic ferrite field, particularly relate to a kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite and preparation method thereof.
Background technology
Along with being showing improvement or progress day by day of science and technology, electronics constantly towards miniaturization development, is had higher requirement to the performance of electronic devices and components.High permeability MnZn ferrite, because its initial permeability is high, loss is little, is applied widely in fields such as electromagnetism interference noise filter (EMI), automotive electronics.The outdoor facilities of modern communications equipment and automobile etc., in the course of the work, all need the environment experiencing high temperature and low temperature, and ensure that these equipment can normally use.
But existing high permeability MnZn ferrite adaptive temperature change performance is also not high, is as the use properties within the scope of-35 ~ 25 DEG C can not meet service requirements far away to low-temperature performance by it.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite and preparation method thereof, can meet the service requirements of the wide temperature range of-35 ~ 100 DEG C.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, comprising: host system and assistant system; Described host system to be mol ratio be 65 ~ 68% Fe
2o
3, 23 ~ 25% ZnO and MnO, Fe
2o
3, ZnO and MnO mole total amount be 100%; Described assistant system comprises addition: the CaCO of 1000 ~ 3000ppm
3, 1000 ~ 2000ppm SiO
2, 500 ~ 1000ppm V
2o
5, 800 ~ 1500ppm TiO
2with the Co of 50 ~ 500ppm
2o
3.
For solving the problems of the technologies described above, another technical solution used in the present invention is: the preparation method providing a kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, comprises the steps:
(1) mixed grinding: the host system taking formula ratio, adds in ball mill, and under the ratio of certain ball, material, water, mixed grinding is to even;
(2) pre-burning: after the mixed grinding host system drying in step (1), insert in rotary furnace, preheating for some time;
(3) doping system is added: the doping system adding formula ratio in the pre-fired mixture obtained in step (2), is first dry mixed 10 ~ 30min, then adds the deionized water accounting for material total amount 1 ~ 3 times, and then proceed in sand mill, sand milling mixes;
(4) base: add dry PVA powder in the mixture in step (3) after grinding, after being fully uniformly mixed, press filtration, base;
(5) sinter molding: the blank obtained in step (4) is inserted in programmed heating stove, sinter molding under certain oxygen partial pressure.
In a preferred embodiment of the present invention, in described step (1), the weight ratio of described ball, material, water is 10:1 ~ 3:2.
In a preferred embodiment of the present invention, in described step (2), described calcined temperature is 900 ~ 955 DEG C, and burn-in time is 2 ~ 2.5h.
In a preferred embodiment of the present invention, in described step (3), the described sand milling time is 1.5 ~ 2.5h, and the rotating speed of sand mill is 80 ~ 150 turns/min; After described sand milling, the average particulate diameter of material is 50 ~ 30nm.
In a preferred embodiment of the present invention, in described step (4), the add-on of described PVA powder is 5 ~ 8% of described host system and doping system gross dry weight.
In a preferred embodiment of the present invention, in described step (5), described sintering process is: oxygen volume content 0.25 ~ 0.30%, with the speed of 50 ~ 100 DEG C/min from room temperature to 1000 DEG C, continue to be warming up to 1360 ~ 1380 DEG C with the speed of 20 DEG C/min again, Isothermal sinter 2 ~ 5h, then closes sintering oven power supply, cools to room temperature with the furnace.
The invention has the beneficial effects as follows: the preparation method of a kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite of the present invention, easy and simple to handle, easy realization, its formulating of recipe by science and rational preparation technology adjustment, by the setting that it is calcined temperature and sintering temperature, enable the stable use in the wide temperature range of-35 ~ 100 DEG C of prepared soft magnetic ferrite, and there is lower power loss, excellent combination property.
Embodiment
Below preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The embodiment of the present invention comprises:
Embodiment 1
A kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, comprising: host system and assistant system; Described host system to be mol ratio be 65% Fe
2o
3, 23% ZnO and MnO, Fe
2o
3, ZnO and MnO mole total amount be 100%; Described assistant system comprises addition: the CaCO of 1000ppm
3, 2000ppm SiO
2, 500ppm V
2o
5, 800ppm TiO
2with the Co of 50ppm
2o
3.
The preparation method of above-mentioned wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, comprises the steps:
(1) mixed grinding: the host system taking formula ratio, adds in ball mill, and under the weight ratio of ball, material, water is the ratio of 10:1:2, mixed grinding is to even;
(2) pre-burning: after the mixed grinding host system drying in step (1), insert in rotary furnace, pre-burning 2.5h at the temperature of 900 DEG C;
(3) doping system is added: the doping system adding formula ratio in the pre-fired mixture obtained in step (2), first be dry mixed 10min, add the deionized water accounting for material total amount 1 times again, then proceed in sand mill, with the rotating speed sand milling mixing 2.5h of 80 turns/min, after sand milling, the average particulate diameter of material is 50 ~ 30nm;
(4) base: add in the mixture after grinding in step (3) and account for the PVA powder that described host system and doping system gross dry weight are 5%, after being fully uniformly mixed, press filtration, base;
(5) sinter molding: the blank obtained in step (4) is inserted in programmed heating stove, it is sinter molding under the oxygen partial pressure of 0.25 ~ 0.30% at oxygen volume content, described sintering process is: with the speed of 50 DEG C/min from room temperature to 1000 DEG C, continue to be warming up to 1360 ~ 1380 DEG C with the speed of 20 DEG C/min again, Isothermal sinter 2h, then close sintering oven power supply, cool to room temperature with the furnace.
Embodiment 2
A kind of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, comprising: host system and assistant system; Described host system to be mol ratio be 68% Fe
2o
3, 25% ZnO and MnO, Fe
2o
3, ZnO and MnO mole total amount be 100%; Described assistant system comprises addition: the CaCO of 3000ppm
3, 1000ppm SiO
2, 1000ppm V
2o
5, 1500ppm TiO
2with the Co of 500ppm
2o
3.
The preparation method of above-mentioned wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, comprises the steps:
(1) mixed grinding: the host system taking formula ratio, adds in ball mill, and under the weight ratio of ball, material, water is the ratio of 10:3:2, mixed grinding is to even;
(2) pre-burning: after the mixed grinding host system drying in step (1), insert in rotary furnace, pre-burning 2.5h at the temperature of 955 DEG C;
(3) doping system is added: the doping system adding formula ratio in the pre-fired mixture obtained in step (2), first be dry mixed 30min, add the deionized water accounting for material total amount 3 times again, then proceed in sand mill, with the rotating speed sand milling mixing 1.5h of 150 turns/min, after sand milling, the average particulate diameter of material is 50 ~ 30nm;
(4) base: add in the mixture after grinding in step (3) and account for the PVA powder that described host system and doping system gross dry weight are 5 ~ 8%, after being fully uniformly mixed, press filtration, base;
(5) sinter molding: the blank obtained in step (4) is inserted in programmed heating stove, it is sinter molding under the oxygen partial pressure of 0.30% at oxygen volume content, described sintering process is: with the speed of 50 DEG C/min from room temperature to 1000 DEG C, continue to be warming up to 1360 ~ 1380 DEG C with the speed of 20 DEG C/min again, Isothermal sinter 2h, then close sintering oven power supply, cool to room temperature with the furnace.
The wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite that aforesaid method obtains, after testing, its magnetic permeability 25 DEG C time is the magnetic permeability of 6000 ~ 8000,100 DEG C is 4800 ~ 6500mT, and the magnetic permeability-35 DEG C time is 4600 ~ 6000; 100 DEG C, the power loss under 100kHz, 200mT condition is less than 320kW/m
3.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (7)
1. a wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite, is characterized in that, comprising: host system and assistant system; Described host system to be mol ratio be 65 ~ 68% Fe
2o
3, 23 ~ 25% ZnO and MnO, Fe
2o
3, ZnO and MnO mole total amount be 100%; Described assistant system comprises addition: the CaCO of 1000 ~ 3000ppm
3, 1000 ~ 2000ppm SiO
2, 500 ~ 1000ppm V
2o
5, 800 ~ 1500ppm TiO
2with the Co of 50 ~ 500ppm
2o
3.
2. a preparation method for wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite as claimed in claim 1, is characterized in that, comprise the steps:
(1) mixed grinding: the host system taking formula ratio, adds in ball mill, and under the ratio of certain ball, material, water, mixed grinding is to even;
(2) pre-burning: after the mixed grinding host system drying in step (1), insert in rotary furnace, preheating for some time;
(3) doping system is added: the doping system adding formula ratio in the pre-fired mixture obtained in step (2), is first dry mixed 10 ~ 30min, then adds the deionized water accounting for material total amount 1 ~ 3 times, and then proceed in sand mill, sand milling mixes;
(4) base: add dry PVA powder in the mixture in step (3) after grinding, after being fully uniformly mixed, press filtration, base;
(5) sinter molding: the blank obtained in step (4) is inserted in programmed heating stove, sinter molding under certain oxygen partial pressure.
3. the preparation method of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite according to claim 2, is characterized in that, in described step (1), the weight ratio of described ball, material, water is 10:1 ~ 3:2.
4. the preparation method of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite according to claim 2, is characterized in that, in described step (2), described calcined temperature is 900 ~ 955 DEG C, and burn-in time is 2 ~ 2.5h.
5. the preparation method of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite according to claim 2, is characterized in that, in described step (3), the described sand milling time is 1.5 ~ 2.5h, and the rotating speed of sand mill is 80 ~ 150 turns/min; After described sand milling, the average particulate diameter of material is 50 ~ 30nm.
6. the preparation method of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite according to claim 2, is characterized in that, in described step (4), the add-on of described PVA powder is 5 ~ 8% of described host system and doping system gross dry weight.
7. the preparation method of wide-temperature and low-consumption high magnetic conductivity soft-magnetic ferrite according to claim 2, it is characterized in that, in described step (5), described sintering process is: oxygen volume content 0.25 ~ 0.30%, with the speed of 50 ~ 100 DEG C/min from room temperature to 1000 DEG C, then continue to be warming up to 1360 ~ 1380 DEG C with the speed of 20 DEG C/min, Isothermal sinter 2 ~ 5h, then close sintering oven power supply, cool to room temperature with the furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977064.1A CN105503170A (en) | 2015-12-23 | 2015-12-23 | Soft magnetic ferrite with wide temperature, low loss and high permeability as well as preparation method of soft magnetic ferrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510977064.1A CN105503170A (en) | 2015-12-23 | 2015-12-23 | Soft magnetic ferrite with wide temperature, low loss and high permeability as well as preparation method of soft magnetic ferrite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105503170A true CN105503170A (en) | 2016-04-20 |
Family
ID=55711549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510977064.1A Pending CN105503170A (en) | 2015-12-23 | 2015-12-23 | Soft magnetic ferrite with wide temperature, low loss and high permeability as well as preparation method of soft magnetic ferrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105503170A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200570A (en) * | 2017-05-12 | 2017-09-26 | 天长市中德电子有限公司 | A kind of wide-temperature and low-consumption soft magnetic ferrite |
| CN107216138A (en) * | 2017-04-28 | 2017-09-29 | 苏州冠达磁业有限公司 | Electromagnetic induction wireless charging manganese-zinc ferrite magnetic sheet and preparation method thereof |
| CN108558385A (en) * | 2018-04-26 | 2018-09-21 | 湖北华磁电子科技有限公司 | Wide-temperature high-efficiency rate soft magnetic ferrite and magnetic core preparation method and application |
| CN109320230A (en) * | 2018-10-11 | 2019-02-12 | 南京中电熊猫磁电科技有限公司 | A kind of preparation method of the Mn-Zn soft magnetic ferrite with four high characteristics |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662470A (en) * | 2002-09-26 | 2005-08-31 | Tdk株式会社 | Ferrite material |
| CN101256866A (en) * | 2007-12-29 | 2008-09-03 | 电子科技大学 | Wide temperature ultra-low loss MnZn soft magnetic ferrite material and preparing method thereof |
| CN101807463A (en) * | 2010-03-31 | 2010-08-18 | 苏州天铭磁业有限公司 | MnZn ferrite material of high initial permeability and low loss and preparation method thereof |
| CN105036730A (en) * | 2015-07-24 | 2015-11-11 | 天长市中德电子有限公司 | High-density low-loss high-permeability ferrite material and preparation method |
-
2015
- 2015-12-23 CN CN201510977064.1A patent/CN105503170A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1662470A (en) * | 2002-09-26 | 2005-08-31 | Tdk株式会社 | Ferrite material |
| CN101256866A (en) * | 2007-12-29 | 2008-09-03 | 电子科技大学 | Wide temperature ultra-low loss MnZn soft magnetic ferrite material and preparing method thereof |
| CN101807463A (en) * | 2010-03-31 | 2010-08-18 | 苏州天铭磁业有限公司 | MnZn ferrite material of high initial permeability and low loss and preparation method thereof |
| CN105036730A (en) * | 2015-07-24 | 2015-11-11 | 天长市中德电子有限公司 | High-density low-loss high-permeability ferrite material and preparation method |
Non-Patent Citations (1)
| Title |
|---|
| 任平 等: ""微量成分添加对锰锌铁氧体性能影响研究进展"", 《材料导报》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107216138A (en) * | 2017-04-28 | 2017-09-29 | 苏州冠达磁业有限公司 | Electromagnetic induction wireless charging manganese-zinc ferrite magnetic sheet and preparation method thereof |
| CN107200570A (en) * | 2017-05-12 | 2017-09-26 | 天长市中德电子有限公司 | A kind of wide-temperature and low-consumption soft magnetic ferrite |
| CN107200570B (en) * | 2017-05-12 | 2021-01-01 | 天长市中德电子有限公司 | Wide-temperature-range low-loss soft magnetic ferrite |
| CN108558385A (en) * | 2018-04-26 | 2018-09-21 | 湖北华磁电子科技有限公司 | Wide-temperature high-efficiency rate soft magnetic ferrite and magnetic core preparation method and application |
| CN108558385B (en) * | 2018-04-26 | 2021-02-26 | 湖北华磁电子科技有限公司 | Wide-temperature-range high-efficiency soft magnetic ferrite material and magnetic core preparation method and application |
| CN109320230A (en) * | 2018-10-11 | 2019-02-12 | 南京中电熊猫磁电科技有限公司 | A kind of preparation method of the Mn-Zn soft magnetic ferrite with four high characteristics |
| CN109320230B (en) * | 2018-10-11 | 2021-10-19 | 南京中电熊猫磁电科技有限公司 | Preparation method of manganese-zinc soft magnetic ferrite material with four high characteristics |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103058643B (en) | Mn-Zn soft magnetic ferrite material with high, temperature, high superposition and low power consumption, and preparation method of Mn-Zn soft magnetic ferrite material | |
| CN101857426B (en) | Broadband high impedance MnZn ferrite material and manufacture method thereof | |
| CN105565790B (en) | YR950 wide-temperature high-direct-current superposition low-power-consumption manganese-zinc ferrite material and preparation method thereof | |
| CN105503170A (en) | Soft magnetic ferrite with wide temperature, low loss and high permeability as well as preparation method of soft magnetic ferrite | |
| CN101728048B (en) | Wide-temperature low-distortion mangan zinc ferrite and preparation method thereof | |
| CN106396661B (en) | A kind of wide temperature low-power consumption MnZn ferrite material and preparation method thereof | |
| CN104529423B (en) | A kind of low temperature factor resistance to stress nickel-zinc ferrite and preparation method thereof | |
| CN101593595B (en) | Low-temperature sintering high performance soft magnetic ferrite material and manufacturing method | |
| CN102795850B (en) | Wide-temperature ultralow-loss manganese zinc power ferrite magnetic core | |
| CN102603278B (en) | Stress-resistant nickel zinc ferrite with initial permeability of 120, and preparation method of stress-resistant nickel zinc ferrite | |
| CN103951411A (en) | Wide-temperature-range low-power-consumption high-Curie-temperature manganese/zinc ferrite material and preparation method thereof | |
| CN103113093A (en) | High-frequency and high-impedance manganese zinc ferrite bead and production method thereof | |
| CN108558385A (en) | Wide-temperature high-efficiency rate soft magnetic ferrite and magnetic core preparation method and application | |
| CN101913851A (en) | Wide-temperature high-permeability Mn-Zn soft magnetic ferrite material and magnetic core prepared therefrom as well as preparation method thereof | |
| CN104341144B (en) | Low-temperature sintering C0G characteristic microwave dielectric material and preparation method thereof | |
| CN103613368B (en) | A kind of Aluminum oxide pure black ceramic material | |
| CN103524124A (en) | Sintering method of high-magnetic-permeability MnZn ferrite material | |
| CN102211929A (en) | Low-temperature sintered high-permeability NiCuZn ferrite material | |
| CN104392819A (en) | Composite soft magnetic material and preparation method thereof | |
| CN103664154A (en) | Formula and process of Li-Ti-Zn soft magnetic ferrite material with high frequency and high resistivity | |
| CN108640670A (en) | High Bs values, the preparation method of low-power consumption soft magnetic ferrite and magnetic core | |
| CN107216138A (en) | Electromagnetic induction wireless charging manganese-zinc ferrite magnetic sheet and preparation method thereof | |
| CN108610037A (en) | A kind of manganese zinc material with high magnetic permeability and preparation method thereof of the high superposition high-curie temperature of wide temperature | |
| CN101241793A (en) | Mn-Zn soft magnetic ferrite and production method | |
| CN110183221A (en) | The preparation method of the Mn-Zn soft magnetic ferrite of ultra low temperature magnetic conductivity stability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160420 |
|
| RJ01 | Rejection of invention patent application after publication |