CN103567436A - Manufacturing method of iron-silicon material and iron-silicon magnetic powder core having permeability mu of 55 - Google Patents
Manufacturing method of iron-silicon material and iron-silicon magnetic powder core having permeability mu of 55 Download PDFInfo
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- CN103567436A CN103567436A CN201310613702.2A CN201310613702A CN103567436A CN 103567436 A CN103567436 A CN 103567436A CN 201310613702 A CN201310613702 A CN 201310613702A CN 103567436 A CN103567436 A CN 103567436A
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- powder
- iron
- silicon
- alloy melting
- nitrogen
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- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 239000002210 silicon-based material Substances 0.000 title claims abstract description 19
- 239000006247 magnetic powder Substances 0.000 title abstract 3
- 230000035699 permeability Effects 0.000 title abstract 3
- 239000000843 powder Substances 0.000 claims abstract description 66
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 52
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 44
- 239000000956 alloy Substances 0.000 claims abstract description 29
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 28
- 238000002844 melting Methods 0.000 claims abstract description 28
- 230000008018 melting Effects 0.000 claims abstract description 28
- 229910052742 iron Inorganic materials 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 22
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000000748 compression moulding Methods 0.000 claims abstract description 11
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000002161 passivation Methods 0.000 claims abstract description 11
- 239000000314 lubricant Substances 0.000 claims abstract description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims abstract description 7
- 239000010703 silicon Substances 0.000 claims abstract description 7
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 7
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 6
- 238000000137 annealing Methods 0.000 claims abstract description 6
- 229910002056 binary alloy Inorganic materials 0.000 claims abstract description 6
- 239000003822 epoxy resin Substances 0.000 claims abstract description 6
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 6
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 6
- 239000011863 silicon-based powder Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
- 239000006249 magnetic particle Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 15
- 239000000377 silicon dioxide Substances 0.000 claims description 15
- 238000000465 moulding Methods 0.000 claims description 10
- 239000007921 spray Substances 0.000 claims description 10
- 239000013464 silicone adhesive Substances 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000003723 Smelting Methods 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 5
- 239000001301 oxygen Substances 0.000 claims description 5
- 229910052760 oxygen Inorganic materials 0.000 claims description 5
- 239000011573 trace mineral Substances 0.000 claims description 5
- 235000013619 trace mineral Nutrition 0.000 claims description 5
- 235000021355 Stearic acid Nutrition 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 2
- 239000011256 inorganic filler Substances 0.000 claims description 2
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 2
- 239000010445 mica Substances 0.000 claims description 2
- 229910052618 mica group Inorganic materials 0.000 claims description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 239000008117 stearic acid Substances 0.000 claims description 2
- 229910000676 Si alloy Inorganic materials 0.000 abstract 1
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 abstract 1
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 239000003973 paint Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 238000005507 spraying Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
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- Soft Magnetic Materials (AREA)
Abstract
The invention discloses a manufacturing method of an iron-silicon material and an iron-silicon magnetic powder core having the permeability mu of 55. The ingredients of the iron-silicon material and the iron--silicon magnetic powder core having the permeability mu of 55 comprise a binary system iron-silicon alloy and certain added microelements including 5%-6% of silicon and the balance of iron. The manufacturing method comprises the steps as follows: a, alloy melting: alloy melting is performed in a magnesia crucible open type medium-frequency induction furnace; b, powder manufacturing: nitrogen spraying is directly performed for powder manufacturing after alloy melting; c, powder reduction, nitrogen is adopted for reduction; d, powder passivation: 3%-5% of an analytically pure grade phosphoric acid solution is added in the iron-silicon powder according to a weight ratio; e, insulation coating: 1.5%-3.5% of a silicon resin adhesive and 0.5%-1% of a powdered lubricant are added in the aired powder according to a weight ratio; f, compression molding: powder forming is performed under the pressure of 16-22 tons per square centimeter; g, heat treatment: annealing is performed for about one hour at a temperature of 500+/-30 DEG C; and h, surface coating: the surface of a product is uniformly sprayed with an epoxy resin paint layer.
Description
Technical field
The manufacture method of Wataru of the present invention and a kind of alloy material, relates in particular to the manufacture method of a kind of iron silicon materials and μ 55 iron silica magnetic particle cores.
Background technology
As everyone knows, the powder core that adopts iron silicon materials to manufacture, has the advantages that resistivity is high, eddy-current loss is low, is suitable for upper frequency application.But, because different user is different to the requirement of the magnetic conductivity of the powder core of manufacturing with iron silicon materials, just need to provide according to user's requirement the iron silica magnetic particle core of different magnetic conductivities.Meanwhile, existing manufacture method exists complex procedures, the problem that energy consumption is too high.
Summary of the invention
The object of the invention is to provide in order to overcome the deficiencies in the prior art that a kind of operation is simple, power consumption also greatly reduces and have very excellent superimposed characteristics, loss is low, be highly suitable for energy storage inductor, be widely used in UPS, wind energy, the fields such as solar energy-manufacture method of kind of iron silicon materials and μ 55 iron silica magnetic particle cores.Its concrete grammar is: the composition of described iron silicon materials and μ 55 iron silica magnetic particle cores is binary system ferro-silicium and adds certain trace element, silicon 5-6%, surplus is iron, comprises alloy melting, powder process, powder reduction, powder passivation, insulating wrapped, compression molding, heat treatment, face coat;
A, alloy melting: alloy melting carries out in magnesia crucible open type intermediate frequency furnace, smelting temperature is more than 1400 ℃, the alloy melting time is more than 50 minutes;
B, powder process: alloy melting directly carries out nitrogen spray powder process after well, and powder carries out annealing in process after crossing 100 mesh sieves;
C, powder reduction: Bian reduces with nitrogen, nitrogen dew point is controlled at below-60 ℃;
D, powder passivation: in iron Si powder, add by weight the pure level of 3% to 5% analysis phosphoric acid solution, evenly mix about one hour, then powder is dried at normal temperatures;
E, insulating wrapped: in the powder after drying, add by weight successively 1.5% to 3.5% silicone adhesive and 0.5% to 1% powdered lubricant, evenly mix and dry at normal temperatures;
F, compression molding: under the pressure of every square centimeter 16 tons to 22 tons, complete powder moulding;
G, heat treatment: the product after moulding is put into nitrogen protection stove (Control for Oxygen Content is in 15%),, anneal about 1 hour by 500 ± 0 ℃;
H, face coat: the appearance at product uniformly sprays one deck epoxy resin coating.
Said silicone adhesive, for adding a small amount of inorganic filler in PSI, as mica powder or talcum powder, its addition is the 10-15% of PSI weight.
Said powdered lubricant is the stearic acid inorganic salts such as calcium stearate.
From technical scheme of the present invention, can find out, the present invention compared with prior art, has reduced repeated drying technique in former technology, after powder process, do not need to carry out grain size proportion yet, so production process is simple, power consumption also greatly reduces, and has reached goal of the invention of the present invention completely.
The specific embodiment
The manufacture method of enforcement 1, a kind of iron silicon materials and μ 55 iron silica magnetic particle cores.Its concrete grammar is: the composition of described iron silicon materials and μ 55 iron silica magnetic particle cores is binary system ferro-silicium and adds certain trace element, silicon 6%, surplus is iron, comprises alloy melting, powder process, powder reduction, powder passivation, insulating wrapped, compression molding, heat treatment, face coat;
A, alloy melting: alloy melting carries out in magnesia crucible open type intermediate frequency furnace, smelting temperature is more than 1400 ℃, the alloy melting time is more than 50 minutes;
B, powder process: alloy melting directly carries out nitrogen spray powder process after well, and powder carries out annealing in process after crossing 100 mesh sieves;
C, powder reduction: Bian reduces with nitrogen, nitrogen dew point is controlled at below-60 ℃;
D, powder passivation: in iron Si powder, add by weight the pure level of 5% analysis phosphoric acid solution, evenly mix about one hour, then powder is dried at normal temperatures;
E, insulating wrapped: in the powder after drying, add by weight successively 3.5% silicone adhesive and 1% powdered lubricant, evenly mix and dry at normal temperatures;
F, compression molding: under the pressure of 22 tons every square centimeter, complete powder moulding;
G, heat treatment: the product after moulding is put into nitrogen protection stove (Control for Oxygen Content is in 15%),, anneal about 1 hour by 530 ℃;
H, face coat: the appearance at product uniformly sprays one deck epoxy resin coating.
The manufacture method of enforcement 2, a kind of iron silicon materials and μ 55 iron silica magnetic particle cores.Its concrete grammar is: the composition of described iron silicon materials and μ 55 iron silica magnetic particle cores is binary system ferro-silicium and adds certain trace element, silicon 5%, surplus is iron, comprises alloy melting, powder process, powder reduction, powder passivation, insulating wrapped, compression molding, heat treatment, face coat;
A, alloy melting: alloy melting carries out in magnesia crucible open type intermediate frequency furnace, smelting temperature is more than 1400 ℃, the alloy melting time is more than 50 minutes;
B, powder process: alloy melting directly carries out nitrogen spray powder process after well, and powder carries out annealing in process after crossing 100 mesh sieves;
C, powder reduction: Bian reduces with nitrogen, nitrogen dew point is controlled at below-60 ℃;
D, powder passivation: in iron Si powder, add by weight the pure level of 3% analysis phosphoric acid solution, evenly mix about one hour, then powder is dried at normal temperatures;
E, insulating wrapped: in the powder after drying, add by weight successively 1.5% silicone adhesive and 0.5% powdered lubricant, evenly mix and dry at normal temperatures;
F, compression molding: under the pressure of 16 tons every square centimeter, complete powder moulding;
G, heat treatment: the product after moulding is put into nitrogen protection stove (Control for Oxygen Content is in 15%),, anneal about 1 hour by 470 ℃;
H, face coat: the appearance at product uniformly sprays one deck epoxy resin coating.
The manufacture method of enforcement 3, a kind of iron silicon materials and μ 55 iron silica magnetic particle cores.Its concrete grammar is: the composition of described iron silicon materials and μ 55 iron silica magnetic particle cores is binary system ferro-silicium and adds certain trace element, silicon 5.5%, surplus is iron, comprises alloy melting, powder process, powder reduction, powder passivation, insulating wrapped, compression molding, heat treatment, face coat;
A, alloy melting: alloy melting carries out in magnesia crucible open type intermediate frequency furnace, smelting temperature is more than 1400 ℃, the alloy melting time is more than 50 minutes;
B, powder process: alloy melting directly carries out nitrogen spray powder process after well, and powder carries out annealing in process after crossing 100 mesh sieves;
C, powder reduction: adopt nitrogen reduction, nitrogen dew point is controlled at below-60 ℃;
D, powder passivation: in iron Si powder, add by weight the pure level of 4% analysis phosphoric acid solution, evenly mix about one hour, then powder is dried at normal temperatures;
E, insulating wrapped: in the powder after drying, add by weight successively 2.5% silicone adhesive and 0.75% powdered lubricant, evenly mix and dry at normal temperatures;
F, compression molding: under the pressure of 22 tons every square centimeter, complete powder moulding;
G, heat treatment: the product after moulding is put into nitrogen protection stove (Control for Oxygen Content is in 15%),, anneal about 1 hour by 500 ℃;
H, face coat: the appearance at product uniformly sprays one deck epoxy resin coating.
Claims (3)
1. the manufacture method of iron silicon materials and μ 55 iron silica magnetic particle cores, concrete grammar is, the composition of described iron silicon materials and μ 55 iron silica magnetic particle cores is binary system ferro-silicium and adds certain trace element, silicon 5-6%, surplus is iron, comprise alloy melting, powder process, powder reduction, powder passivation, insulating wrapped, compression molding, heat treatment, face coat, it is characterized in that:
(a) alloy melting: alloy melting carries out in magnesia crucible open type intermediate frequency furnace, smelting temperature is more than 1400 ℃, the alloy melting time is more than 50 minutes;
(b) powder process: alloy melting directly carries out nitrogen spray powder process after well, and powder carries out annealing in process after crossing 100 mesh sieves;
(c) powder reduction: Bian reduces with nitrogen, nitrogen dew point is controlled at below-60 ℃;
(d) powder passivation: add by weight the pure level of 3% to 5% analysis phosphoric acid solution in iron Si powder, evenly mix about hour, then powder is dried at normal temperatures;
(e) insulating wrapped: add by weight successively 1.5% to 3.5% silicone adhesive and 0.5% to 1% powdered lubricant in the powder after drying, evenly mix and dry at normal temperatures;
(f) compression molding: under the pressure of every square centimeter 16 tons to 22 tons, complete powder moulding;
(g) heat treatment: the product after moulding is put into nitrogen protection stove, Control for Oxygen Content, in 15%, 500 ± 30 ℃, is annealed about 1 hour;
(h) face coat: the appearance at product uniformly sprays one deck epoxy resin coating.
2. the manufacture method of according to claim 1-kind of iron silicon materials and μ 55 iron silica magnetic particle cores, it is characterized in that: said silicone adhesive, for adding a small amount of inorganic filler in PSI, as mica powder or talcum powder, its addition is the 10-15% of PSI weight.
3. the manufacture method of according to claim 1-kind of iron silicon materials and μ 55 iron silica magnetic particle cores, is characterized in that: said powdered lubricant is the stearic acid inorganic salts such as calcium stearate.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183381A (en) * | 2014-08-04 | 2014-12-03 | 太仓市武锋金属制品有限公司 | Preparation method of transformer iron core |
| CN105014065A (en) * | 2015-08-12 | 2015-11-04 | 湖州南浔闻天磁性材料有限公司 | Fe-Si-Al soft magnetic powder |
| CN108698124A (en) * | 2016-02-01 | 2018-10-23 | 霍加纳斯股份有限公司 | Novel compositions and methods |
| CN109559865A (en) * | 2018-12-04 | 2019-04-02 | 安徽迪维乐普非晶器材有限公司 | A kind of preparation method of novel amorphous magnetic core binder |
| CN115171995A (en) * | 2022-07-26 | 2022-10-11 | 横店集团东磁股份有限公司 | Iron-based soft magnetic composite material and preparation method thereof |
| CN116013678A (en) * | 2023-03-02 | 2023-04-25 | 深圳信义磁性材料有限公司 | Preparation method of low-loss ferrosilicon magnetic powder core material |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007027320A (en) * | 2005-07-14 | 2007-02-01 | Sumitomo Electric Ind Ltd | Soft magnetic material, dust core, and method for producing soft magnetic material |
| CN101011741A (en) * | 2007-02-02 | 2007-08-08 | 武汉欣达磁性材料有限公司 | Manufacturing method of Fe-6.5Si alloy powder and manufacturing method of magnetic powder core |
| CN102294474A (en) * | 2011-08-17 | 2011-12-28 | 天通控股股份有限公司 | Ferrosilicon material and mu50 ferrosilicon magnetic powder core manufacturing method |
| CN102294475A (en) * | 2011-08-17 | 2011-12-28 | 天通控股股份有限公司 | Ferrosilicon material and mu60 ferrosilicon magnetic powder core manufacturing method |
| CN102744403A (en) * | 2012-06-19 | 2012-10-24 | 同济大学 | Preparation method of nanocrystalline magnetic powder cores |
| CN102917818A (en) * | 2010-04-09 | 2013-02-06 | 日立化成工业株式会社 | Coated metal powder, powder magnetic core and method for producing same |
-
2013
- 2013-11-28 CN CN201310613702.2A patent/CN103567436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007027320A (en) * | 2005-07-14 | 2007-02-01 | Sumitomo Electric Ind Ltd | Soft magnetic material, dust core, and method for producing soft magnetic material |
| CN101011741A (en) * | 2007-02-02 | 2007-08-08 | 武汉欣达磁性材料有限公司 | Manufacturing method of Fe-6.5Si alloy powder and manufacturing method of magnetic powder core |
| CN102917818A (en) * | 2010-04-09 | 2013-02-06 | 日立化成工业株式会社 | Coated metal powder, powder magnetic core and method for producing same |
| CN102294474A (en) * | 2011-08-17 | 2011-12-28 | 天通控股股份有限公司 | Ferrosilicon material and mu50 ferrosilicon magnetic powder core manufacturing method |
| CN102294475A (en) * | 2011-08-17 | 2011-12-28 | 天通控股股份有限公司 | Ferrosilicon material and mu60 ferrosilicon magnetic powder core manufacturing method |
| CN102744403A (en) * | 2012-06-19 | 2012-10-24 | 同济大学 | Preparation method of nanocrystalline magnetic powder cores |
Non-Patent Citations (1)
| Title |
|---|
| 陈玉兰: "绝缘粘结剂对FeSiAl磁粉芯性能的影响", 《磁性材料及器件》, vol. 4, no. 3, 30 June 2010 (2010-06-30) * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104183381A (en) * | 2014-08-04 | 2014-12-03 | 太仓市武锋金属制品有限公司 | Preparation method of transformer iron core |
| CN104183381B (en) * | 2014-08-04 | 2016-08-24 | 太仓市武锋金属制品有限公司 | A kind of preparation method of transformer core |
| CN105014065A (en) * | 2015-08-12 | 2015-11-04 | 湖州南浔闻天磁性材料有限公司 | Fe-Si-Al soft magnetic powder |
| CN105014065B (en) * | 2015-08-12 | 2017-11-10 | 湖州南浔闻天磁性材料有限公司 | A kind of iron-silicon-aluminum soft magnetic powder |
| CN108698124A (en) * | 2016-02-01 | 2018-10-23 | 霍加纳斯股份有限公司 | Novel compositions and methods |
| CN109559865A (en) * | 2018-12-04 | 2019-04-02 | 安徽迪维乐普非晶器材有限公司 | A kind of preparation method of novel amorphous magnetic core binder |
| CN109559865B (en) * | 2018-12-04 | 2020-10-30 | 安徽迪维乐普非晶器材有限公司 | Preparation method of novel amorphous magnetic core binder |
| CN115171995A (en) * | 2022-07-26 | 2022-10-11 | 横店集团东磁股份有限公司 | Iron-based soft magnetic composite material and preparation method thereof |
| CN116013678A (en) * | 2023-03-02 | 2023-04-25 | 深圳信义磁性材料有限公司 | Preparation method of low-loss ferrosilicon magnetic powder core material |
| CN116013678B (en) * | 2023-03-02 | 2023-10-17 | 深圳信义磁性材料有限公司 | Preparation method of low-loss ferrosilicon magnetic powder core material |
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Application publication date: 20140212 |