CN103833345A - High-BS magnetic block for earth leakage protection of solar generator - Google Patents

High-BS magnetic block for earth leakage protection of solar generator Download PDF

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Publication number
CN103833345A
CN103833345A CN201410004277.1A CN201410004277A CN103833345A CN 103833345 A CN103833345 A CN 103833345A CN 201410004277 A CN201410004277 A CN 201410004277A CN 103833345 A CN103833345 A CN 103833345A
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solar generator
main body
magnetic patch
body system
electric leakage
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CN201410004277.1A
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柯宇翔
张晓明
徐良保
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GUANDA MAGNETIC IND CO Ltd SUZHOU
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GUANDA MAGNETIC IND CO Ltd SUZHOU
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Abstract

The invention discloses a high-BS magnetic block for earth leakage protection of a solar generator. The magnetic block has loss of 350 to 420 kw/m<3> and density of 5.3 to 5.8 g/cm<3> under the conditions of 100 KHz, 200 mT and 100 DEG C and has saturation magnetic flux density of 580 to 650 mT and Curie temperature of 285 to 290 DEG C under the conditions of 100 KHz, 200 mT and 25 to 100 DEG C. The magnetic block comprises main components and auxiliary components, wherein the main components are composed of Fe2O3, MnO and ZnO, and the auxiliary components are composed of SiO2, Cr2O3, Nb2O5, Co2O3 and Ta2O5. The magnetic block provided by the invention has the advantages of uniform particle size, good consistency, low porosity, high density, no microscopic out-phase crystal grain, no macroscopic out-phase, etc., has high saturation magnetic flux density and low power consumption at a high temperature of 100 DEG C and high Curie temperature and can meet performance requirements of earth leakage protection of the solar generator.

Description

High BS solar generator protection of electric leakage magnetic patch
Technical field
The present invention relates to Mn-Zn based ferrite technical field, particularly relate to a kind of high BS solar generator protection of electric leakage magnetic patch.
Background technology
Magneticsubstance is as at the indispensable functional materials of national economy every field, its output and usage quantity have become one of mark of weighing a national economy and Information Technology Development degree, particularly power ferrite, is constantly bringing into play increasing effect in national economy every field.
Solar generator is directly impinged upon and on solar panel, is produced electric energy by sunlight, and to charging of accumulators, can be DC energy-saving lamp; radio-cassette player, televisor, DVD; the product power supplies such as satellite television receiver; have and overcharge, cross and put, short circuit; temperature compensation; the defencive functions such as reverse connection of accumulator, volume is small and exquisite, easy to carry, use safety.Although it is good that solar generator has advantages of safety performance, but still unavoidably there is leaky, in order further to improve safety in utilization, in recent years, solar generator earth leakage protective device is also along with the fast development of solar inverter etc. and develop, thereby the application surface of power ferrite is significantly improved, and its performance is had higher requirement, main manifestations is: 1, have higher saturation magnetic flux density; 2, due to sun power environment use in the open, require to there is good intensity and higher Curie temperature, with the variation of the weather that conforms; 3, require to there is under high temperature the advantages such as power loss is low.
At present, the Curie temperature of conventional power ferrite is 275～285 ℃, and the power loss in the time of 100KHz 200mT and 100 ℃ is 520～550kw/m 3, the saturation magnetic flux density at 25～100 ℃ is 420～520mT, density is 4.9g/cm 3, thering is watt consumption large, the low deficiency that waits of magneticflux-density, can not meet the earth leakage protective requirement of solar generator completely.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of high BS solar generator protection of electric leakage magnetic patch.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of high BS solar generator protection of electric leakage magnetic patch is provided, and the loss of this magnetic patch in the time that 100KHz 200mT and temperature are 100 ℃ is 350～420kw/m 3, density is 5.3～5.8g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 580～650mT, Curie temperature is 285～290 ℃; Described magnetic patch comprises principal constituent and minor component; Described principal constituent comprises Fe 2o 3, MnO and ZnO; Described minor component comprises CaCO 3, ultra-fine SiO 2, Cr 2o 3, Nb 2o 5, Co 2o 3and Ta 2o 5; The molar content of described main body system is Fe 2o 366～68%, MnO 28～30%, ZnO 8～10%; Described minor component is CaCO with respect to the addition of the gross weight of described principal constituent 3600～2200ppm, ultra-fine SiO 2100～300, Cr 2o 3500～1000, Nb 2o 5800～2000, Co 2o 3300～1600 and Ta 2o 5400～900.
In a preferred embodiment of the present invention, the loss of described magnetic patch in the time that 100KHz 200mT and temperature are 100 ℃ is 380kw/m 3, density is 5.6g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 590mT, Curie temperature is 290 ℃.
In a preferred embodiment of the present invention, the molar content of described main body system is Fe 2o 367.5%, MnO 29%, ZnO 10%; Described minor component is CaCO with respect to the addition of the gross weight of described principal constituent 3850ppm, nanometer SiO 2150, Cr 2o 3800, Nb 2o 51500, Co 2o 3600 and Ta 2o 5500.
In a preferred embodiment of the present invention, described ultra-fine SiO 2order number be 3000 orders.
For solving the problems of the technologies described above, another technical solution used in the present invention is: a kind of preparation method of high BS solar generator protection of electric leakage magnetic patch is provided, comprises the following steps:
(1) weighing: accurately take the each raw material for standby in principal constituent and minor component by formula;
(2) prepare main body system: it is that the mixing machine of 45～50 turn/min is uniformly mixed 30～45min that three kinds of raw materials in the main body system having weighed are placed in to rotating speed, then mixture is proceeded to temperature and is pre-burning 90～100min in the electrothermic type rotary kiln of 810 ℃, finally being placed in vibration frequency is 50 beats/min, amplitude is to pulverize 20～30min in the vibrations ball mill of 3mm, and obtaining average material diameter is the main body system mixture of 0.75～0.85 μ m;
(3) prepare mixed system: the each raw material in load weighted doping system in the main body system mixture obtaining in step (2) and step (1) is put into skin grinder, then add successively that to account for the water of 1.2～1.8 times of material gross weights, the dispersion agent of 0.03 times and 12～15% concentration be the 20% PVOH aqueous solution, start skin grinder, with rotating speed frosted 100～150min of 50 turn/min, obtaining particle diameter is the main body system of 0.65～0.80 μ m and the mixed slurry of doping system;
(4) prepare briquet and moulding: by the slip mist projection granulating obtaining in step (3); and be pressed into desired shape briquet; then proceed to kiln sintering together with mould, sintering process is: rise to 850 ℃ from room temperature, insulation 90～100min; continue to be again warming up to 1100 ℃; insulation 150～180min, is finally warming up to 1300 ℃, heat preservation sintering 5h under 3% oxygen concentration; then drop to room temperature at nitrogen atmosphere, obtain high BS solar generator protection of electric leakage magnetic patch.
In a preferred embodiment of the present invention, in described step (4), described briquet is shaped as right cylinder or Polygons solid.
The invention has the beneficial effects as follows: a kind of high BS solar generator protection of electric leakage magnetic patch of the present invention; by formula and the optimization sintering process of reasonable disposition principal constituent and minor component; density, physical strength, the saturation magnetic flux density of product are improved; prepared magnetic stripe have grain size evenly, high conformity; void content is low; density is high; without advantages such as microcosmic out-phase crystal grain and macroscopical out-phase; under 100 ℃ of high temperature, saturation magnetic flux density height and power loss are low; there is higher Curie temperature simultaneously, can meet the earth leakage protective performance requriements of solar generator.
Embodiment
Below preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that, protection scope of the present invention is made to more explicit defining.
The embodiment of the present invention comprises:
A kind of high BS solar generator protection of electric leakage magnetic patch, the loss of this magnetic patch in the time that 100KHz 200mT and temperature are 100 ℃ is 350～420kw/m 3, density is 5.3～5.8g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 580～650mT, Curie temperature is 285～290 ℃; Described magnetic patch comprises principal constituent and minor component; Described principal constituent comprises Fe 2o 3, MnO and ZnO; Described minor component comprises CaCO 3, ultra-fine SiO 2, Cr 2o 3, Nb 2o 5, Co 2o 3and Ta 2o 5; The molar content of described main body system is Fe 2o 366～68%, MnO 28～30%, ZnO 8～10%; Described minor component is CaCO with respect to the addition of the gross weight of described principal constituent 3600～2200ppm, ultra-fine SiO 2100～300, Cr 2o 3500～1000, Nb 2o 5800～2000, Co 2o 3300～1600 and Ta 2o 5400～900; Described ultra-fine SiO 2order number be 3000 orders.
Embodiment 1
(1) weighing: accurately take Fe by formula 2o 366mol%, MnO(starting material are Mn 3o 4) CaCO in 28mol%, ZnO 8mol% and doping system 3600ppm, ultra-fine SiO 2100ppm, Cr 2o 3500ppm, Nb 2o 5800ppm, Co 2o 3300ppm, Ta 2o 5400ppm is for subsequent use;
(2) prepare main body system: it is that the mixing machine of 45 turn/min is uniformly mixed 45min that three kinds of raw materials in the main body system having weighed are placed in to rotating speed, then mixture is proceeded to temperature and is pre-burning 90min in the electrothermic type rotary kiln of 810 ℃, finally being placed in vibration frequency is 50 beats/min, amplitude is to pulverize 20min in the vibrations ball mill of 3mm, and obtaining average material diameter is the main body system mixture of 0.85 μ m;
(3) prepare mixed system: the each raw material in load weighted doping system in the main body system mixture obtaining in step (2) and step (1) is put into skin grinder, then add successively that to account for the water of 1.2 times of material gross weights, the dispersion agent of 0.03 times and 12% concentration be the 20% PVOH aqueous solution, start skin grinder, with the rotating speed frosted 100min of 50 turn/min, obtaining particle diameter is the main body system of 0.80 μ m and the mixed slurry of doping system;
(4) prepare briquet and moulding: by the slip mist projection granulating obtaining in step (3); and be pressed into the desired shape briquet such as right cylinder or Polygons solid; then proceed to kiln sintering together with mould, sintering process is: rise to 850 ℃ from room temperature, insulation 90min; continue to be again warming up to 1100 ℃; insulation 180min, is finally warming up to 1300 ℃, heat preservation sintering 5h under 3% oxygen concentration; then drop to room temperature at nitrogen atmosphere, obtain high BS solar generator protection of electric leakage magnetic patch.
In a preferred embodiment of the present invention, adopt the magnet ring of corresponding acquisition to carry out performance test, the loss in the time that 100KHz 200mT and temperature are 100 ℃ is 420kw/m 3, density is 5.3g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 580mT, Curie temperature is 285 ℃.
Embodiment 2
(1) weighing: accurately take Fe by formula 2o 368mol%, MnO(starting material are Mn 3o 4) CaCO in 30mol%, ZnO 10mol% and doping system 32200ppm, ultra-fine SiO 2300ppm, Cr 2o 31000ppm, Nb 2o 5800ppm, Co 2o 32000ppm, Ta 2o 5900ppm is for subsequent use;
(2) prepare main body system: it is that the mixing machine of 50 turn/min is uniformly mixed 30min that three kinds of raw materials in the main body system having weighed are placed in to rotating speed, then mixture is proceeded to temperature and is pre-burning 100min in the electrothermic type rotary kiln of 810 ℃, finally being placed in vibration frequency is 50 beats/min, amplitude is to pulverize 30min in the vibrations ball mill of 3mm, and obtaining average material diameter is the main body system mixture of 0.75 μ m;
(3) prepare mixed system: the each raw material in load weighted doping system in the main body system mixture obtaining in step (2) and step (1) is put into skin grinder, then add successively that to account for the water of 1.8 times of material gross weights, the dispersion agent of 0.03 times and 15% concentration be the 20% PVOH aqueous solution, start skin grinder, with the rotating speed frosted 150min of 50 turn/min, obtaining particle diameter is the main body system of 0.78 μ m and the mixed slurry of doping system;
(4) prepare briquet and moulding: by the slip mist projection granulating obtaining in step (3); and be pressed into the desired shape briquet such as right cylinder or Polygons solid; then proceed to kiln sintering together with mould, sintering process is: rise to 850 ℃ from room temperature, insulation 100min; continue to be again warming up to 1100 ℃; insulation 150min, is finally warming up to 1300 ℃, heat preservation sintering 5h under 3% oxygen concentration; then drop to room temperature at nitrogen atmosphere, obtain high BS solar generator protection of electric leakage magnetic patch.
In a preferred embodiment of the present invention, adopt the magnet ring of corresponding acquisition to carry out performance test, the loss in the time that 100KHz 200mT and temperature are 100 ℃ is 350kw/m 3, density is 5.8g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 650mT, Curie temperature is 290 ℃.
Embodiment 3
(1) weighing: accurately take Fe by formula 2o 367.5mol%, MnO(starting material are Mn 3o 4) CaCO in 29mol%, ZnO 10mol% and doping system 3850ppm, ultra-fine SiO 2150ppm, Cr 2o 3800ppm, Nb 2o 51500ppm, Co 2o 3600ppm, Ta 2o 5500ppm is for subsequent use;
(2) prepare main body system: it is that the mixing machine of 50 turn/min is uniformly mixed 30min that three kinds of raw materials in the main body system having weighed are placed in to rotating speed, then mixture is proceeded to temperature and is pre-burning 100min in the electrothermic type rotary kiln of 810 ℃, finally being placed in vibration frequency is 50 beats/min, amplitude is to pulverize 30min in the vibrations ball mill of 3mm, and obtaining average material diameter is the main body system mixture of 0.75 μ m;
(3) prepare mixed system: the each raw material in load weighted doping system in the main body system mixture obtaining in step (2) and step (1) is put into skin grinder, then add successively that to account for the water of 1.8 times of material gross weights, the dispersion agent of 0.03 times and 15% concentration be the 20% PVOH aqueous solution, start skin grinder, with the rotating speed frosted 150min of 50 turn/min, obtaining particle diameter is the main body system of 0.81 μ m and the mixed slurry of doping system;
(4) prepare briquet and moulding: by the slip mist projection granulating obtaining in step (3); and be pressed into the desired shape briquet such as right cylinder or Polygons solid; then proceed to kiln sintering together with mould, sintering process is: rise to 850 ℃ from room temperature, insulation 100min; continue to be again warming up to 1100 ℃; insulation 150min, is finally warming up to 1300 ℃, heat preservation sintering 5h under 3% oxygen concentration; then drop to room temperature at nitrogen atmosphere, obtain high BS solar generator protection of electric leakage magnetic patch.
In a preferred embodiment of the present invention, adopt the magnet ring of corresponding acquisition to carry out performance test, the loss in the time that 100KHz 200mT and temperature are 100 ℃ is 380kw/m 3, density is 5.6g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 590mT, Curie temperature is 290 ℃.
The foregoing is only embodiments of the invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes description of the present invention to do; 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 (6)

1. a high BS solar generator protection of electric leakage magnetic patch, is characterized in that, the loss of this magnetic patch in the time that 100KHz 200mT and temperature are 100 ℃ is 350～420kw/m 3, density is 5.3～5.8g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 580～650mT, Curie temperature is 285～290 ℃; Described magnetic patch comprises principal constituent and minor component; Described principal constituent comprises Fe 2o 3, MnO and ZnO; Described minor component comprises CaCO 3, ultra-fine SiO 2, Cr 2o 3, Nb 2o 5, Co 2o 3and Ta 2o 5; The molar content of described main body system is Fe 2o 366～68%, MnO 28～30%, ZnO 8～10%; Described minor component is CaCO with respect to the addition of the gross weight of described principal constituent 3600～2200ppm, ultra-fine SiO 2100～300, Cr 2o 3500～1000, Nb 2o 5800～2000, Co 2o 3300～1600 and Ta 2o 5400～900.
2. high BS solar generator protection of electric leakage magnetic patch according to claim 1, is characterized in that, the loss of described magnetic patch in the time that 100KHz 200mT and temperature are 100 ℃ is 380kw/m 3, density is 5.6g/cm 3, the saturation magnetic flux density at 25～100 ℃ is 590mT, Curie temperature is 290 ℃.
3. high BS solar generator protection of electric leakage magnetic patch according to claim 1, is characterized in that, the molar content of described main body system is Fe 2o 367.5%, MnO 29%, ZnO 10%; Described minor component is CaCO with respect to the addition of the gross weight of described principal constituent 3850ppm, nanometer SiO 2150, Cr 2o 3800, Nb 2o 51500, Co 2o 3600 and Ta 2o 5500.
4. according to the high BS solar generator protection of electric leakage magnetic patch described in claim 1 or 3, it is characterized in that described ultra-fine SiO 2order number be 3000 orders.
5. a preparation method for magnetic patch for high BS solar generator protection of electric leakage as claimed in claim 1, is characterized in that, comprises the following steps:
(1) weighing: accurately take the each raw material for standby in principal constituent and minor component by formula;
(2) prepare main body system: it is that the mixing machine of 45～50 turn/min is uniformly mixed 30～45min that three kinds of raw materials in the main body system having weighed are placed in to rotating speed, then mixture is proceeded to temperature and is pre-burning 90～100min in the electrothermic type rotary kiln of 810 ℃, finally being placed in vibration frequency is 50 beats/min, amplitude is to pulverize 20～30min in the vibrations ball mill of 3mm, and obtaining average material diameter is the main body system mixture of 0.75～0.85 μ m;
(3) prepare mixed system: the each raw material in load weighted doping system in the main body system mixture obtaining in step (2) and step (1) is put into skin grinder, then add successively that to account for the water of 1.2～1.8 times of material gross weights, the dispersion agent of 0.03 times and 12～15% concentration be the 20% PVOH aqueous solution, start skin grinder, with rotating speed frosted 100～150min of 50 turn/min, obtaining particle diameter is the main body system of 0.65～0.80 μ m and the mixed slurry of doping system;
(4) prepare briquet and moulding: by the slip mist projection granulating obtaining in step (3); and be pressed into desired shape briquet; then proceed to kiln sintering together with mould, sintering process is: rise to 850 ℃ from room temperature, insulation 90～100min; continue to be again warming up to 1100 ℃; insulation 150～180min, is finally warming up to 1300 ℃, heat preservation sintering 5h under 3% oxygen concentration; then drop to room temperature at nitrogen atmosphere, obtain high BS solar generator protection of electric leakage magnetic patch.
6. the preparation method of magnetic stripe for the heating of the high Q value of high strength low-loss according to claim 5 automobile, is characterized in that, in described step (4), described briquet is shaped as right cylinder or Polygons solid.
CN201410004277.1A 2014-01-06 2014-01-06 High-BS magnetic block for earth leakage protection of solar generator Pending CN103833345A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105461296A (en) * 2015-11-20 2016-04-06 无锡斯贝尔磁性材料有限公司 A high-BS low-loss manganese zinc ferrite magnetic material and a preparing method thereof
CN108504946A (en) * 2018-04-04 2018-09-07 陕西理工大学 A kind of high performance magnetic material

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005029416A (en) * 2003-07-10 2005-02-03 Tdk Corp Ferrite material
CN101090017A (en) * 2006-06-14 2007-12-19 横店集团东磁有限公司 High-saturation-flux-density low-loss MnZn power ferrite and preparation method thereof
CN101266860A (en) * 2008-01-21 2008-09-17 横店集团东磁股份有限公司 High Bs low waste MnZn ferrite and its making method
CN103117146A (en) * 2013-02-26 2013-05-22 苏州冠达磁业有限公司 High-Curie-temperature low-loss high-strength ferrite magnetic block and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005029416A (en) * 2003-07-10 2005-02-03 Tdk Corp Ferrite material
CN101090017A (en) * 2006-06-14 2007-12-19 横店集团东磁有限公司 High-saturation-flux-density low-loss MnZn power ferrite and preparation method thereof
CN101266860A (en) * 2008-01-21 2008-09-17 横店集团东磁股份有限公司 High Bs low waste MnZn ferrite and its making method
CN103117146A (en) * 2013-02-26 2013-05-22 苏州冠达磁业有限公司 High-Curie-temperature low-loss high-strength ferrite magnetic block and preparation method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105461296A (en) * 2015-11-20 2016-04-06 无锡斯贝尔磁性材料有限公司 A high-BS low-loss manganese zinc ferrite magnetic material and a preparing method thereof
CN105461296B (en) * 2015-11-20 2018-12-14 无锡斯贝尔磁性材料有限公司 A kind of high BS low-loss manganese zine ferrite magnetic material and preparation method thereof
CN108504946A (en) * 2018-04-04 2018-09-07 陕西理工大学 A kind of high performance magnetic material

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Application publication date: 20140604