CN102531559A - Preparation method for high-performance manganese zinc ferrite powder - Google Patents
Preparation method for high-performance manganese zinc ferrite powder Download PDFInfo
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Abstract
The invention relates to a preparation method for high-performance manganese zinc ferrite powder and belongs to the field of preparation of manganese zinc ferrite. The preparation method for the high-performance manganese zinc ferrite powder comprises the following steps of: automatically weighing; dispersing; allowing raw materials to enter a horizontal sand mill, sanding and mixing; performing primary spray granulation; pre-sintering; coarsely crushing; allowing the dispersed coarse crushed materials to enter the horizontal sand mill and finely crushing; performing secondary spray granulation; drying; cooling; and adjusting the water content of the powder. The raw materials are sanded and mixed by the high-efficiency horizontal sand mill, so that the grain sizes of all the raw materials tend to be consistent; the grain size and the grain size distribution of the mixture is controlled strictly in the preparation process, so the microstructures of the raw materials are highly homogenized; and drying and cooling are performed after the secondary spray granulation, so that the high water content consistency of the powder is achieved, and the water stability of the powder before the powder is packaged is maintained.
Description
Technical field
The present invention relates to a kind of method of manufacture of Mn-Zn ferrite material powder, relate in particular to the wet type method of manufacture of Mn-Zn ferrite material powder.
Background technology
Shift to China at the center that late 1990s whole world soft magnetic ferrite is produced; And the development trend of miniaturization of electronic products, high efficiency; And the development of new energy source energy-saving environmental protection and communications market, promoting continually developing and technical progress of soft magnetic ferrite product innovation.
MnZn ferrite in soft magnetic ferrite is owing to have high magnetic permeability, high saturation magnetic flux density and low-loss characteristics, and usage quantity accounts for more than 80% of soft magnetic ferrite total amount.
Produce novel soft magnetic ferrite, main formula and trace mineral supplement are internal causes, and what is more important will have advanced ME and equipment as guarantee.Because this type material requirements to the starting material height homogenize, to the trace mineral supplement High Accuracy Control, in the Mn-Zn ferrite grain boundary structure formation condition of pursuing ideal, control hole and lattice imperfection significantly, realize the crystal grain of high density homogeneousization.
Conventional softer magnetic ferrites made technology mainly is divided into dry method and wet processing, and dry process generally is once to do mix → to make ball → pre-burning → sand milling → mist projection granulating.Doing mixed is that main raw material(s) red oxide of iron, trimanganese tetroxide, zinc oxide are mixed in mixer by a certain percentage.It is spherical to the material water spray back formation that mixes making ball, makes material have flowability, is convenient to pre-burning.The shortcoming that above-mentioned production technique exists is:
A, make in the raw material behind the ball water cut between 10%～18%, need carry out predrying, otherwise between carry out pre-burning meeting explosion.
B, do to mix can only play between the starting material on the macroscopic view evenly, material is mixed at microcosmic angle, and three kinds of raw-material particle diameters are also inconsistent, can not obtain high performance soft magnetic ferrite.
To receive spray tower to influence fluctuation bigger for the particle water ratio behind c, the mist projection granulating, during tower that particularly steam output is bigger this influence bigger, and higher from the spray tower back temperature of coming out, when ambient moisture is big, be easy to the moisture absorption.
The patent No. is that 03115906.0 Chinese patent discloses a kind of manganese-zinc power soft ferrite material powder and preparation method thereof, with Fe
2O
3, Mn
3O
4, ZnO is main raw material, processes manganese-zinc power soft ferrite material powder through mixing, pre-burning, coarse reduction, sand milling, five operations of mist projection granulating, finish mix powder power consumption is lower, saturation induction density Bs is high, superior performance is with low cost.Do not make the ball operation though this technology does not adopt, solved the problem of above-mentioned water cut, owing to be pulverous, do not have flowability, easily sticking wall influences product performance during pre-burning.
Wet processing generally is that the raw material wet method is disperseed → sand milling → one time mist projection granulating pre-burning → coarse reduction → secondary sand milling → mist projection granulating.This technology has been carried out sand milling one time to raw material before pre-burning, make raw materials mix more fully, evenly.But owing to adopt traditional vertical grinding machine, the particle diameter behind the sand milling is generally at D501.2 μ m, and more than the D905.0 μ m, the mixing that exists on the microcosmic is inhomogeneous, influences final material property.Little and even through particle behind mist projection granulating, good fluidity, water cut is low, directly pre-burning.There is the shortcoming of above-mentioned dry method c equally in particle behind the secondary mist projection granulating.
The patent No. is the production technique of the open soft-magnetic manganese-zinc ferrite powder of 200610020741.1 Chinese patent; Its process step is: starting material are carried out mist projection granulating after the wet-milling; Pre-burning then; Secondary sand milling and secondary mist projection granulating are carried out in coarse reduction then, and solid state reaction is fully accomplished when helping pre-burning.This patent has related to the median size behind sand milling and the secondary sand milling and has not mentioned size distribution, and this is most important for producing high performance soft magnetic ferrite.
It is a kind of in frequency band district internal loss lower and saturation magnetic flux densities about 100 ℃ the higher Mn-Zn ferrite method of manufacture of tens of kHz to hundreds of kHz that the patent No. is that 200510005763.6 Chinese patent discloses, and it to the effect that will have specific surface area is 2.0～5.0m
2/ g, D50 particle diameter are that the shaping of 0.7～2.0 μ m uses powder forming as the operation of the molding of predetermined shape and burn till the operation that this molding obtains sintered compact.Shaping, pulverizes this pre-burning thing and make usually after the raw material powder pre-burning with powder.This method has only related to the powder particle diameter of pre-burning thing, and to the particle diameter initial specification after the raw materials mix, this will not badly influence material property, and the water ratio control of shaping with powder (promptly expecting powder) is not claimed.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of manufacture of high-performance manganese-zinc ferrite material powder, solves now raw material is processed particle diameter and not control of water ratio in the process, and the material powder changes and the moisture absorption influences performance defect.
Technical scheme
A kind of method of manufacture of high-performance manganese-zinc ferrite material powder comprises the steps:
(1) automatic weighing passes through self-measuring device weighing by a certain percentage with red oxide of iron, trimanganese tetroxide, zinc oxide;
(2) three kinds of starting material behind the weighing enter into high speed dispersor and deionized water, dispersant are tentatively disperseed;
(3) raw material after disperseing enters into the horizontal sand mill sand milling and mixes, and the particle diameter D50 behind the sand milling is controlled at 0.7～1.5 μ m, and D90 is controlled at 1.0～4 μ m, and it is 0%～2% PVA that the slip behind the sand milling adds mass ratio;
(4) slip is carried out mist projection granulating one time, grain diameter is controlled at 70 μ m～750 μ m, preferred 90 μ m～370 μ m, and water ratio is controlled at 0%～1%;
Carry out pre-burning behind (5) mist projection granulatings, 600 ℃～1100 ℃ of calcined temperatures, the material chloride ion content after the pre-burning is controlled at below the 300ppm, below the preferred 150ppm;
(6) the pre-burning material is through coarse reduction, and that the pneumatic separation particle diameter is controlled at D50 is 1.0 μ m～5 μ m, and that D90 is 2.0～10 μ m;
(7) meal particle adding deionized water, dispersion agent, skimmer disperse; It is broken to get into the horizontal sand mill fine powder then; When fine powder is broken among adding SiO2, CaCO3, Nb2O5, Co3O4, ZrO, Ta2O5, V2O5, Bi2O3, the TiO2 one or more; The adding mass ratio is 0%～2%PVA, the broken back of fine powder particle diameter be D50 be controlled at 0.7 μ m～1.5 μ m, D90 is controlled at 1 μ m～5 μ m;
(8) slip is carried out the secondary mist projection granulating, enter into dry cooling apparatus afterwards, further the material powder is carried out little drying; The water ratio of material powder is reached unanimity, and cool off, will expect that the powder outlet temperature adjusts to identical with room temperature; Prevent to expect that powder too high difference with ambient moisture owing to temperature in air produces the moisture absorption or transpiring moisture; The water ratio of final material powder is controlled between 0.1%～1%, and for same batch of material powder, the water ratio fluctuation is controlled at ± and 0.03%.
Further, in the said step (2), the ratio of starting material and deionized water is 1: 0.3～1.2, and preferred proportion is 1: 0.4～0.8, and the dispersion agent add-on is 0%～10%, and preferred 0%～5% disperses.
Further, in the said step (3), the particle diameter behind the sand milling is preferably 0.7～1.2 μ m that is controlled at of D50, and D90 is controlled at 1.0～2 μ m.
In the said step (3), PVA content is preferably 0%～0.8%.
Further, in the said step (4), water ratio preferably is controlled at 0%～0.2%.
Further, in the said step (5), calcined temperature is preferably 850 ℃～1000 ℃.
Further, in the said step (6), that the pneumatic separation particle diameter is controlled at D50 after the coarse reduction preferably is 1 μ m～3 μ m, and that D90 preferably is 3 μ m～8 μ m.
Further, in the said step (7), the deionized water add-on is 10%～70% of a siccative, and is preferred 40%～60%, and the dispersion agent add-on is 0%～10%, preferred 0%～5%, and the skimmer add-on is 0%～0.05%, preferred 0%～0.02%.
In the said step (7), that the broken back of fine powder particle diameter is controlled at D50 preferably is 0.8 μ m～1.2 μ m, and that D90 preferably is 2 μ m～3 μ m.
Further, in the said step (8), expect that finally the water ratio of powder is controlled at 0.15%～0.3%.
Beneficial effect
The present invention has just adopted horizontal sand mill efficiently when the starting material sand milling mixes, various raw-material particle diameters are reached unanimity, and the particle diameter and the size distribution of strict control mixture, has accomplished that really the height on the starting material microtexture homogenizes;
The control chloride ion content helps expecting powder shaping sintering when pre-burning, and the output in the time of can increasing sintering cuts down the consumption of energy;
Behind the secondary mist projection granulating, carrying out drying and cooling again, can make the water ratio consistence of material powder better, the material powder water ratio that general mist projection granulating comes out can only be controlled at ± and 0.1%; Optimally also can only be controlled at ± 0.05%, and through further drying can be controlled at ± 0.03%, afterwards the material powder is cooled off; Because dried material powder temperature is higher, if ambient moisture is higher, high temperature can make the material powder moisture absorption; Otherwise; The material powder can transpiring moisture, and above-mentioned phenomenon can drop to minimumly behind the cool to room temperature, has kept the moisture stabilization property of material powder before packing.
Description of drawings
Fig. 1 is the schematic flow sheet of method of manufacture of the present invention;
The magnetic sample conductance temperature curve synoptic diagram of Fig. 2 for making in the embodiment of the invention 2;
The sample incremental permeability temperature curve synoptic diagram of Fig. 3 for making in the embodiment of the invention 2.
Embodiment
Below in conjunction with specific embodiment and accompanying drawing, further set forth the present invention.
Embodiment 1
Fe in molar ratio
2O
3: 55%, ZnO:6.8%, NiO:1.5% surplusly feeds intake for the MnO ratio is converted into mass percent, and MnO is converted into Mn
3O
4, the initial D50 particle diameter of raw material is: Fe
2O
3: 1.4 μ m; ZnO:1.0 μ m; Mn
3O
4: 1.2 μ m; NiO:1.2 μ m.
Shown in accompanying drawing 1, after the dispersion and the mixing of horizontal sand milling through the inventive method, the particle diameter of mixture is D50:0.8 μ m, D90:1.3 μ m.Through a mist projection granulating, the chloride ion content of the material after the pre-burning is 60ppm, through coarse reduction D50:1.5 μ m, and D90:4.5 μ m, through the broken D50:1.0 μ of horizontal sand mill fine powder m, D90:2.5 μ m adds SiO when fine powder is broken
2, CaCO
3, Nb
2O
5, Co
3O
4, ZrO, Ta
2O
5, V
2O
5, Bi
2O
3, TiO
2In one or more, add PVA, carry out the secondary mist projection granulating then with dry freezing, material powder water ratio is 0.02%～0.025%.
The above-mentioned material powder that makes is pressed into external diameter 30*1.18; Internal diameter 19*1.18; The annular sample of height 8*1.18, sintering under 1330 ℃, certain oxygen partial pressure, the sinter that obtains is with SY8258 its power loss of test and saturation magnetic flux density; HP8242 tests its initial permeability, obtains following performance:
Embodiment 2
Fe in molar ratio
2O
3: 52%, ZnO:18.5% surplusly feeds intake for the MnO ratio is converted into mass percent, and MnO is converted into Mn
3O
4, the initial D50 particle diameter of raw material is: Fe
2O
3: 1.4 μ m; ZnO:1.0 μ m; Mn
3O
4: 1.2 μ m; NiO:1.2 μ m.
Shown in accompanying drawing 1, after the dispersion and the mixing of horizontal sand milling through the inventive method, the particle diameter of mixture is D50:0.8 μ m, D90:1.2 μ m.Through a mist projection granulating, the chloride ion content of the material after the pre-burning is 40ppm, through coarse reduction D50:1.5 μ m, and D90:4.5 μ m, through the broken D50:0.8 μ of horizontal sand mill fine powder m, D90:2 μ m adds SiO when fine powder is broken
2, CaCO
3, Nb
2O
5, Co
3O
4, ZrO, Ta
2O
5, V
2O
5, Bi
2O
3, TiO
2In one or more, add PVA, carry out the secondary mist projection granulating then with dry freezing, material powder water ratio is 0.02%～0.025%.The above-mentioned material powder that makes is pressed into external diameter 30*1.18; Internal diameter 19*1.18; The annular sample of height 8*1.18, sintering under 1330 ℃, certain oxygen partial pressure, the sinter that obtains is with its saturation magnetic flux density of SY8258 test; Initial permeability, Q value and incremental permeability under its differing temps of HP8242 test obtain following performance:
Embodiment 3
Fe in molar ratio
2O
3: 53%, ZnO:10.5% surplusly feeds intake for the MnO ratio is converted into mass percent, and MnO is converted into Mn
3O
4, the initial D50 particle diameter of raw material is: Fe
2O
3: 1.4 μ m; ZnO:1.0 μ m; Mn
3O
4: 1.2 μ m; NiO:1.2 μ m.
Shown in accompanying drawing 1, after the dispersion and the mixing of horizontal sand milling through the inventive method, the particle diameter of mixture is D50:0.8 μ m, D90:1.2 μ m.Through a mist projection granulating, the chloride ion content of the material after the pre-burning is 40ppm, through coarse reduction D50:1.5 μ m, and D90:4.5 μ m, through the broken D50:0.9 μ of horizontal sand mill fine powder m, D90:2.5 μ m adds SiO when fine powder is broken
2, CaCO
3, Nb
2O
5, Co
3O
4, ZrO, Ta
2O
5, V
2O
5, Bi
2O
3, TiO
2In one or more, add PVA, carry out the secondary mist projection granulating then with dry freezing; Material powder water ratio is 0.02%～0.025%, and the above-mentioned material powder that makes is pressed into external diameter 30*1.18, internal diameter 19*1.18; The annular sample of height 8*1.18, sintering under 1330 ℃, certain oxygen partial pressure, the sinter that obtains is with SY8258 its saturation magnetic flux density of test and power loss; HP8242 tests its initial permeability, obtains following performance:
Claims (10)
1. the method for manufacture of a high-performance manganese-zinc ferrite material powder comprises the steps:
(1) automatic weighing passes through self-measuring device weighing by a certain percentage with red oxide of iron, trimanganese tetroxide, zinc oxide;
(2) three kinds of starting material behind the weighing enter into high speed dispersor and deionized water, dispersant are tentatively disperseed;
(3) raw material after disperseing enters into the horizontal sand mill sand milling and mixes, and the particle diameter D50 behind the sand milling is controlled at 0.7～1.5 μ m, and D90 is controlled at 1.0～4 μ m, and it is 0%～2% PVA that the slip behind the sand milling adds mass ratio;
(4) slip is carried out mist projection granulating one time, grain diameter is controlled at 70 μ m～750 μ m, preferred 90 μ m～370 μ m, and water ratio is controlled at 0%～1%;
Carry out pre-burning behind (5) mist projection granulatings, 600 ℃～1100 ℃ of calcined temperatures, the material chloride ion content after the pre-burning is controlled at below the 300ppm, below the preferred 150ppm;
(6) the pre-burning material is through coarse reduction, and that the pneumatic separation particle diameter is controlled at D50 is 1.0 μ m～5 μ m, and that D90 is 2.0～10 μ m;
(7) meal particle adding deionized water, dispersion agent, skimmer disperse, and it is broken to get into the horizontal sand mill fine powder then, add SiO when fine powder is broken
2, CaCO
3, Nb
2O
5, Co
3O
4, ZrO, Ta
2O
5, V
2O
5, Bi
2O
3, TiO
2In one or more, the adding mass ratio is 0%～2%PVA, the broken back of fine powder particle diameter be D50 be controlled at 0.7 μ m～1.5 μ m, D90 is controlled at 1 μ m～5 μ m;
(8) slip is carried out the secondary mist projection granulating, enter into dry cooling apparatus afterwards, further the material powder is carried out little drying; The water ratio of material powder is reached unanimity, and cool off, will expect that the powder outlet temperature adjusts to identical with room temperature; Prevent to expect that powder too high difference with ambient moisture owing to temperature in air produces the moisture absorption or transpiring moisture; The water ratio of final material powder is controlled between 0.1%～1%, and for same batch of material powder, the water ratio fluctuation is controlled at ± and 0.03%.
2. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1; It is characterized in that: in the said step (2), the ratio of starting material and deionized water is 1: 0.3～1.2, and preferred proportion is 1: 0.4～0.8; The dispersion agent add-on is 0%～10%, and preferred 0%～5% disperses.
3. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (3), the particle diameter behind the sand milling is preferably 0.7～1.2 μ m that is controlled at of D50, and D90 is controlled at 1.0～2 μ m.
4. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (3), PVA content is preferably 0%～0.8%.
5. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (4), water ratio preferably is controlled at 0%～0.2%.
6. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (5), calcined temperature is preferably 850 ℃～1000 ℃.
7. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (6), that the pneumatic separation particle diameter is controlled at D50 after the coarse reduction preferably is 1 μ m～3 μ m, and that D90 preferably is 3 μ m～8 μ m.
8. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1; It is characterized in that: in the said step (7), the deionized water add-on is 10%～70% of a siccative, preferred 40%～60%; The dispersion agent add-on is 0%～10%; Preferred 0%～5%, the skimmer add-on is 0%～0.05%, preferred 0%～0.02%.
9. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (7), that the broken back of fine powder particle diameter is controlled at D50 preferably is 0.8 μ m～1.2 μ m, and that D90 preferably is 2 μ m～3 μ m.
10. the method for manufacture of high-performance manganese-zinc ferrite material powder as claimed in claim 1 is characterized in that: in the said step (8), expect that finally the water ratio of powder is controlled at 0.15%～0.3%.
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|---|---|---|---|---|
| CN103664156A (en) * | 2013-11-15 | 2014-03-26 | 上海宝钢磁业有限公司 | Preparation method of manganese zinc ferrite powder |
| CN103693950A (en) * | 2013-11-19 | 2014-04-02 | 肇庆冠磁科技有限公司 | Preparation method for soft-magnetic ferrite powder |
| CN106045494A (en) * | 2016-05-31 | 2016-10-26 | 山东嘉诺电子有限公司 | Manganese-zinc soft magnetic ferrite material and preparing method thereof |
| CN106145916A (en) * | 2015-04-16 | 2016-11-23 | 安徽华林磁电科技有限公司 | Wide-temperature-ranlow-power low-power soft ferrite material novel preparation process |
| CN107680771A (en) * | 2016-09-09 | 2018-02-09 | 杨甫进 | Clamping method of the soft magnetism green compact on digital-controlled carving machine |
| CN107680770A (en) * | 2016-09-09 | 2018-02-09 | 杨甫进 | Soft magnetic ferrite green compact Carving Machining technique |
| CN107919203A (en) * | 2016-10-05 | 2018-04-17 | 现代自动车株式会社 | Ferrimagnetism material and its manufacture method |
| CN110937887A (en) * | 2019-12-13 | 2020-03-31 | 横店集团东磁股份有限公司 | High-frequency low-loss MnZn ferrite material and preparation method thereof |
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| CN113860865A (en) * | 2021-11-04 | 2021-12-31 | 无锡斯贝尔磁性材料有限公司 | Powder manufacturing line process control method of MnZn ferrite powder particles |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564281A (en) * | 2004-03-19 | 2005-01-12 | 高金海 | Method of preparing communication magnetic core |
| CN101058504A (en) * | 2006-04-18 | 2007-10-24 | 绵阳开元磁性材料有限公司 | Preparation technique for soft-magnetic manganese-zinc ferrite powder |
| CN101593595A (en) * | 2009-04-10 | 2009-12-02 | 临沂中瑞电子有限公司 | A kind of low-temperature sintering high performance soft magnetic ferrite material and manufacture method |
-
2010
- 2010-12-22 CN CN201010600552.8A patent/CN102531559B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1564281A (en) * | 2004-03-19 | 2005-01-12 | 高金海 | Method of preparing communication magnetic core |
| CN101058504A (en) * | 2006-04-18 | 2007-10-24 | 绵阳开元磁性材料有限公司 | Preparation technique for soft-magnetic manganese-zinc ferrite powder |
| CN101593595A (en) * | 2009-04-10 | 2009-12-02 | 临沂中瑞电子有限公司 | A kind of low-temperature sintering high performance soft magnetic ferrite material and manufacture method |
Non-Patent Citations (2)
| Title |
|---|
| 戴志云等: "锰锌软磁铁氧体料粉市场的现状及发展趋势", 《磁性材料及器件》 * |
| 李雪等: "锰锌铁氧体结构性能的研究及发展概况", 《材料导报》 * |
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| CN103664156A (en) * | 2013-11-15 | 2014-03-26 | 上海宝钢磁业有限公司 | Preparation method of manganese zinc ferrite powder |
| CN103693950A (en) * | 2013-11-19 | 2014-04-02 | 肇庆冠磁科技有限公司 | Preparation method for soft-magnetic ferrite powder |
| CN106145916A (en) * | 2015-04-16 | 2016-11-23 | 安徽华林磁电科技有限公司 | Wide-temperature-ranlow-power low-power soft ferrite material novel preparation process |
| CN106045494B (en) * | 2016-05-31 | 2019-03-08 | 山东嘉诺电子有限公司 | A kind of Mn-Zn soft magnetic ferrite and preparation method thereof |
| CN106045494A (en) * | 2016-05-31 | 2016-10-26 | 山东嘉诺电子有限公司 | Manganese-zinc soft magnetic ferrite material and preparing method thereof |
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