CN101481242A - Regenerative preparation of manganese-zinc power ferrite waste product - Google Patents
Regenerative preparation of manganese-zinc power ferrite waste product Download PDFInfo
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- CN101481242A CN101481242A CNA2008102076531A CN200810207653A CN101481242A CN 101481242 A CN101481242 A CN 101481242A CN A2008102076531 A CNA2008102076531 A CN A2008102076531A CN 200810207653 A CN200810207653 A CN 200810207653A CN 101481242 A CN101481242 A CN 101481242A
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- manganese
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- oxysome
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Abstract
The invention relates to a regeneration preparing method of manganese-zinc power ferric oxysome waste products, which uses the manganese-zinc power ferric oxysome waste products generated in the mass production process of magnetic material enterprises as raw material. After the raw material is sorted, washed, magnetically sorted, pulverized, milled by sand and added with a mineralizing agent, the powder is shaped into a high density mode, and then the powder is sintered in the temperature range from 1260 DEG C to 1320 DEG C under the protection of balance atmosphere, and the regeneration of the manganese-zinc power ferric oxysome waste products is realized. The regenerated manganese-zinc power ferric oxysome has the initial magnetic conductivity of over 2500, the Curie temperature of over 210 DEG C, the saturated magnetic induction strength of below 510 mT, and the power of below 700mW/cm<3> under 100KHz, and can replace the PC30-size manganese-zinc power ferric oxysome of the Japan TDK company. The method of the invention has the advantages of waste product utilization, low sintering temperature and the like.
Description
Technical field
The present invention relates to a kind of regenerative preparation of manganese-zinc power ferrite waste product, belong to technical field of magnetic materials.
Background technology
The manganese-zinc power ferrite material is mainly used in various high frequency smalls and melts pass power supply, indicating meter, kickback transformer etc.Switch power supply has obtained swift and violent development in recent years, and manganese-zinc power ferrite is the core material of switch power supply, is gordian technique.
Along with the continuous development of science and technology such as switch power supply and the expansion of manganese-zinc power ferrite material market, both at home and abroad the manganese-zinc power ferrite material is in large-scale production process because a variety of causes (as distortion, unfilled corner, physical dimension exceed standard, the magnetic index is not inconsistent etc.) inevitably to causing a large amount of waste products.At present, what these underproof products were big all is to be taken as losing of waste product, does like this, has not only wasted a large amount of resources, and can cause great destruction by environment.An enterprise that produces up to ten thousand tons of power ferrites, the annual waste product that the hundreds of ton is arranged approximately, the enterprise that the whole nation has tens families to go up scale, the amount of its waste product is very huge.The regeneration that realizes waste product has important practical significance and economic worth.
Summary of the invention
The invention provides a kind of with manganese-zinc power ferrite waste product in enterprise's large-scale production process as raw material, make the method for manganese-zinc power ferrite material, it is not high to solve under the prior art finished product rate, resource utilization is low, problem of environment pollution caused.
The present invention selects for use in the magneticsubstance enterprise large-scale production process manganese-zinc power ferrite waste product as raw material; after letter sorting, washing, magnetic separation, pulverizing, sand milling, doping, high-density moulding; under balanced atmosphere protection in 1260 ℃～1320 ℃ temperature ranges sintering; realized manganese-zinc power ferrite waste product regeneration; (initial permeability is higher than 2500 to have obtained main performance index; Curie temperature is higher than 210 ℃, and saturation induction density is lower than 510mT, and power consumption is lower than 700mW/cm under the 100KHz
3) and the suitable high-quality manganese-zinc power ferrite of the Japanese TDK PC30 of the company trade mark.
Present method is characterised in that and adopts following processing step:
(1) letter sorting of manganese-zinc power ferrite waste product raw material.The manual sorting removes and contains big glass mark, the empyreumatic Mn-Zn ferrite waste product of outward appearance, the feed molar component ratio requirement of acquisition: Fe because of what burning or other reasons caused in the waste material
2O
3Drop on 52.5 ~ 53.8%, MnO is 35.0 ~ 37.5%, ZnO is 9.5 ~ 12.5% scopes.
(2) flushing of manganese-zinc power ferrite waste product raw material.Waste product material after the letter sorting is carried out the water flushing, remove non magnetic dust, earth, fire-resistant bits mud, aluminum oxide powder etc.
(3) magnetic separation of manganese-zinc power ferrite waste product raw material.The waste product material that liquidates washed carries out magnetic separation, further removes the Mn-Zn ferrite waste product of nonmagnetics and high μ i.
(4) the pulverizing sand milling of manganese-zinc power ferrite waste product raw material.Utilize the efficient high-strength pulverizer, satisfactory power ferrite raw material is implemented to pulverize, pulverize the back granularity and be lower than 20 μ m, carry out sand milling again, require particle fineness to satisfy between 1.1 μ m ~ 1.3 μ m.
(5) mix.To satisfying powder that (1) ~ (4) require according to 0.03 ~ 0.05%V
2O
5, 0.07 ~ 0.10%MgO, 0.02 ~ 0.04%Nb
2O
5, 0.05 ~ 0.07%SnO
2Weight ratio mix, mix to stir then 30 minutes.
(6) moulding.To satisfying the powder high-density moulding that (1) ~ (5) require, size is according to using required decision, and compact density satisfies: 3.3 ~ 3.5g/cm
3
(7) sintering.
A) will give birth to sample according to the manganese-zinc power ferrite of above-mentioned (1) ~ (6) moulding, and place the atmosphere furnace sintering, 1260 ℃～1320 ℃ of sintering temperatures are incubated 5 ~ 7 hours.
B) during sintering atmosphere heat up and temperature-fall period in carry out sectional-regulated, 1000 ℃ begin to control the oxygen volume ratio when 21.0% drops to 1260 ℃～1320 ℃ of insulations gradually 4.0% ~ 5.0%, reduce oxygen level during cooling gradually, guarantee temperature drop to 1100 ℃ after the oxygen volume ratio be lower than 0.1%.。
Manganese-zinc power ferrite main performance index that is obtained and the suitable high-quality manganese-zinc power ferrite of the Japanese TDK PC30 of the company trade mark.The inventive method has advantages such as waste product utilization, lower sintering temperature, has realized the regeneration of manganese-zinc power ferrite waste product.
Concrete case study on implementation
We are example with 1 ton of manganese-zinc power ferrite waste product raw material, introduce the specific implementation process of whole invention in detail.
1 ton of manganese-zinc power ferrite waste product obtain to meet 950 kilograms in the waste material that present method requires through letter sorting, flushing, magnetic separation.Through pulverize obtaining 940 kilograms of the powders that granularity is lower than 20 μ m, add 800 kilograms of sand millings of deionized water 3 hours, recording the powder mean particle size is 1.26 μ m.According to: 0.04% V
2O
5, 0.07% MgO, 0.03% Nb
2O
5, 0.06% SnO
2Weight ratio mix, mix to stir then 30 minutes.Slip according to the atomizing granulating technology mist projection granulating, is obtained 935 kilograms of shaped granules.Powder is pressed into Φ 25mm * Φ 15mm * 6mm ring-type sample, and compact density is 3.5g/cm
3With sintering in 20 atmosphere furnace of ring-type sample of forming, 1300 ℃ of sintering temperatures are incubated 5 hours.After tested, the average behaviour of sample is: initial permeability μ
i2500, saturation induction density B
s(25 ℃)=460mT, power consumption P
Cv(25 ℃, 100KHz)=670mW/cm
3
Claims (5)
1. a regenerative preparation of manganese-zinc power ferrite waste product is characterized in that having realized the manganese-zinc power ferrite waste product regeneration by letter sorting, magnetic separation, pulverizing, sand milling, doping, moulding, sintering.
2. letter sorting according to claim 1 is characterized in that sorting the feed molar set of dispense of back acquisition than satisfying: Fe
2O
3: 52.5 ~ 53.8%, MnO:35.0 ~ 37.5%, ZnO:9.5 ~ 12.5%.
3. sand milling according to claim 1 is characterized in that particle fineness satisfies between 1.1 μ m ~ 1.3 μ m behind the sand milling.
4. doping according to claim 1 is characterized in that the raw material before the moulding according to 0.03 ~ 0.05% V
2O
5, 0.07 ~ 0.10%MgO, 0.02 ~ 0.04%Nb
2O
5, 0.05 ~ 0.07%SnO
2Weight ratio mix, give moulding then, compact density is 3.3 ~ 3.5g/cm
3
5. sintering according to claim 1 is characterized in that 1260 ℃～1320 ℃ of sintering temperatures, is incubated 5 ~ 7 hours.Atmosphere is carried out sectional-regulated in intensification and temperature-fall period during sintering, 1000 ℃ begin to control the oxygen volume ratio when 21.0% drops to 1260 ℃～1320 ℃ of insulations gradually 4.0% ~ 5.0%, reduce oxygen level during cooling gradually, guarantee 1100 ℃ after the oxygen volume ratio be lower than 0.1%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102076531A CN101481242A (en) | 2008-12-24 | 2008-12-24 | Regenerative preparation of manganese-zinc power ferrite waste product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008102076531A CN101481242A (en) | 2008-12-24 | 2008-12-24 | Regenerative preparation of manganese-zinc power ferrite waste product |
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|---|---|
| CN101481242A true CN101481242A (en) | 2009-07-15 |
Family
ID=40878558
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|---|---|---|---|
| CNA2008102076531A Pending CN101481242A (en) | 2008-12-24 | 2008-12-24 | Regenerative preparation of manganese-zinc power ferrite waste product |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376442A (en) * | 2010-08-10 | 2012-03-14 | 张志明 | Method for producing current-resisting inductor by using waste materials |
| CN102557606A (en) * | 2012-03-16 | 2012-07-11 | 南京深宁磁电有限公司 | Preparation method for magnesium-zinc soft ferrite material and magnesium-zinc soft ferrite material |
| CN102674824A (en) * | 2012-05-29 | 2012-09-19 | 江门安磁电子有限公司 | Method for manufacturing MnZn ferrite by using MnZn ferrite core grinding waste |
| CN102751066A (en) * | 2012-07-06 | 2012-10-24 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Technique for recycling reject magnetic materials |
| CN103979946A (en) * | 2014-04-24 | 2014-08-13 | 苏州天源磁业有限公司 | Preparation method for recovering and reutilizing soft magnetic ferrite waste material |
| CN107216136A (en) * | 2017-06-26 | 2017-09-29 | 重庆正峰电子有限公司 | The method that soft magnetism waste material prepares wireless charger ferrite magnetic sheet |
| CN108484153A (en) * | 2018-03-26 | 2018-09-04 | 华南理工大学 | A kind of secondary material prepares the partial pressure of oxygen control sintering method of manganese-zinc ferrite |
| CN110993309A (en) * | 2019-12-24 | 2020-04-10 | 横店集团东磁股份有限公司 | Method for preparing slurry by using ferrite green sheets |
| CN112125658A (en) * | 2020-09-30 | 2020-12-25 | 山东春光磁电科技有限公司 | Magnetic mud powder for heating plate of induction cooker and preparation method thereof |
| CN114524668A (en) * | 2022-03-15 | 2022-05-24 | 宜宾金川电子有限责任公司 | Method for adding and recycling manganese zinc ferrite waste in strontium ferrite |
-
2008
- 2008-12-24 CN CNA2008102076531A patent/CN101481242A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102376442A (en) * | 2010-08-10 | 2012-03-14 | 张志明 | Method for producing current-resisting inductor by using waste materials |
| CN102376442B (en) * | 2010-08-10 | 2016-02-03 | 张志明 | The method of the inductance of resistance to stream is manufactured with waste material |
| CN102557606A (en) * | 2012-03-16 | 2012-07-11 | 南京深宁磁电有限公司 | Preparation method for magnesium-zinc soft ferrite material and magnesium-zinc soft ferrite material |
| CN102674824A (en) * | 2012-05-29 | 2012-09-19 | 江门安磁电子有限公司 | Method for manufacturing MnZn ferrite by using MnZn ferrite core grinding waste |
| CN102751066A (en) * | 2012-07-06 | 2012-10-24 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | Technique for recycling reject magnetic materials |
| CN102751066B (en) * | 2012-07-06 | 2015-08-26 | 江苏省晶石磁性材料与器件工程技术研究有限公司 | A kind of magnetic material bad Product recycling recycling technique |
| CN103979946A (en) * | 2014-04-24 | 2014-08-13 | 苏州天源磁业有限公司 | Preparation method for recovering and reutilizing soft magnetic ferrite waste material |
| CN103979946B (en) * | 2014-04-24 | 2016-05-18 | 苏州天源磁业股份有限公司 | A kind of preparation method of soft magnetic ferrite waste recovery recycling |
| CN107216136A (en) * | 2017-06-26 | 2017-09-29 | 重庆正峰电子有限公司 | The method that soft magnetism waste material prepares wireless charger ferrite magnetic sheet |
| CN108484153A (en) * | 2018-03-26 | 2018-09-04 | 华南理工大学 | A kind of secondary material prepares the partial pressure of oxygen control sintering method of manganese-zinc ferrite |
| CN108484153B (en) * | 2018-03-26 | 2021-01-19 | 华南理工大学 | Oxygen partial pressure control sintering method for preparing manganese-zinc ferrite by using secondary material |
| CN110993309A (en) * | 2019-12-24 | 2020-04-10 | 横店集团东磁股份有限公司 | Method for preparing slurry by using ferrite green sheets |
| CN110993309B (en) * | 2019-12-24 | 2022-03-04 | 横店集团东磁股份有限公司 | Method for preparing slurry by using ferrite green sheets |
| CN112125658A (en) * | 2020-09-30 | 2020-12-25 | 山东春光磁电科技有限公司 | Magnetic mud powder for heating plate of induction cooker and preparation method thereof |
| CN112125658B (en) * | 2020-09-30 | 2021-05-11 | 山东春光磁电科技有限公司 | Magnetic mud powder for heating plate of induction cooker and preparation method thereof |
| CN114524668A (en) * | 2022-03-15 | 2022-05-24 | 宜宾金川电子有限责任公司 | Method for adding and recycling manganese zinc ferrite waste in strontium ferrite |
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Open date: 20090715 |