CN105761922A - Magnetic powder core mold material design and preparation technology - Google Patents
Magnetic powder core mold material design and preparation technology Download PDFInfo
- Publication number
- CN105761922A CN105761922A CN201610092533.6A CN201610092533A CN105761922A CN 105761922 A CN105761922 A CN 105761922A CN 201610092533 A CN201610092533 A CN 201610092533A CN 105761922 A CN105761922 A CN 105761922A
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- Prior art keywords
- glue
- band
- external mold
- strip material
- wear
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0206—Manufacturing of magnetic cores by mechanical means
- H01F41/0246—Manufacturing of magnetic circuits by moulding or by pressing powder
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a magnetic powder core mold material design and preparation technology. The technology comprises the steps that 1, a raw material is selected, wherein a FeSiB amorphous alloy strip material is selected, and a Fe78Si[22-x]Bx amorphous alloy strip material is prepared through a strip spraying method; 2, strip material surface treatment is conducted, wherein a treating fluid is heated, the strip material is put into the treating fluid to be soaked, and the strip material is taken out after the surface of the strip material turns black, washed with water and then heated in a muffle furnace; 3, the surface of the strip material is coated with glue, wherein the surface which is blacker is selected as a glue coating surface, the other surface serves as a wear-resistant surface, and the glue coating surface is coated with adhesive glue; 4, the strip material subjected to glue coating or glue dipping is tightly wound on a plastic round bar to be a round ring with the thickness larger than or equal to 10 mm, in the winding process, the wear-resistant surface faces inwards, that is to say, the wear-resistant surface leans against the plastic round bar, and the glue coating surface is attached to the inner side of an external mold body of a mold. According to the magnetic powder core mold material design and preparation technology, external mold sticking thin films which have various thicknesses ranging from 10 micrometers to 30 micrometers can be prepared by adjusting the soaking time; the external mold sticking thin films are good in flexibility, easy to stick and convenient to replace and have good corrosion-resistant and wear-resistant properties.
Description
Technical field
The present invention relates to mold materials design and preparation technology field, specifically a kind of powder core mold materials design and preparation technology.
Background technology
Metal magnetic powder core is the alloy powder by iron-based or straight iron powder and the highest block being pressed into of a small amount of bonding agent, as the magnetic core of inductor product.Metal magnetic powder core has high effective permeability, low-loss, frequency stability is good and DC superposition characteristic, low cost etc. are excellent combination property, the fields such as telecommunications, radar, power switch, pulse transformer it are widely used in, it has also become the part that soft magnetic materials is important as the device such as inductance filter, choking-winding.
Metal magnetic powder core is based on annular, and forming pressure is general >=1500Mpa, so, powder core mould is required the highest.Powder core mould requires: dimensional accuracy is higher, die life is long.Powder core shaping dies is typically made up of parts such as external mold, core, top dies.The life-span of mould is mainly determined by the external mold life-span.The mainly abrasion of the failure mode of external mold and deformation.Because powder core is under high pressure shaped by metal-powder, and the general hardness of metal-powder is high, so have high pressure and abrasion to mould, frequently results in external mold deformation and is worn.
Currently, metal magnetic powder core external mold typically makes through modifier treatment of die steel material, and dimensional accuracy is higher, has good anti-wear performance simultaneously.Owing to requiring the dimensional accuracy with precision, so typically can not be at material surface spraying ceramic coat or brush wear-resistant coating, after certain bulk article produces, the inwall of external mold is yielding and is worn, it is necessary to changes external mold mould, causes production cost to raise.
Summary of the invention
It is an object of the invention to for the problems referred to above, it is provided that a kind of powder core mold materials design and preparation technology, mould prepared by this technique has higher hardness and anti-wear performance, easy to make, and the feature of low cost can the most often be changed, easy to use.
The present invention is achieved like this, a kind of powder core mold materials design and preparation technology, it is characterised in that its processing step is as follows:
(1) raw material are chosen: choose FeSiB amorphous alloy strips, use width 10mm ~ 60mm prepared by spray band method, thickness 28 μm ~ 40 μm, density 7.18 ~ 7.25g/cm3, making composition is Fe78Si(22-x)BxAmorphous alloy strips, wherein content is atomic percent, x=9 ~ 13；
(2) strip surface processes: according to KOH/ KNO3/H2O=(500~800)
G/(50 ~ 100) g/1000g proportions treatment fluid；Treatment fluid is heated to 80 ~ 95 DEG C；Band is put into immersion 15 ~ 30min in liquid；Band, through surface process rear surface blackening, takes out band, cleans with water, then uses 120 DEG C of heating 60min in Muffle furnace；
(3) strip surface gluing: color is shallower and unusual light for band one side, and another side color is the most black；The more black face that gets colors is wear-resistant surface as coated face, another side, is coated with bonding glue on coated face；Glue epoxide-resin glue, epoxide-resin glue proportioning uses E44/E51 resin 100g, triethylene tetramine 10 ~ 20g, dibutyl phthalate 10 ~ 20g and acetone 100g, 20 DEG C ~ 120 DEG C solidifications；After gluing after glue trickles automatically no longer till drip, or band is directly extracted after leaching in epoxide-resin glue, after glue trickles automatically no longer till drip；
(4) band after gluing or impregnation is tightly wound on plastics pole the annulus of thickness >=10mm, and annulus density domination is at 6.0g/cm3Above, being leaned against inwardly by wear-resistant surface on plastics pole during winding, coated face is attached to, inside mould external mold, finally be extracted out from annulus by plastics pole, waits that in annulus after adhesive curing, external mold sticking film i.e. secure fit is on mould external mold inwall.
The beneficial effects of the present invention is: (1) can be adjusted by soak time, the external mold sticking film of various thickness in preparing 10 ~ 30 μ m；(2) this external mold sticking film is flexible, it is easy to paste, and it is convenient to change；(3) external mold sticking film has good corrosion-resistant and anti-wear performance.
Accompanying drawing explanation
Fig. 1 is the structural representation of inventive die.
In the drawings, 1, backing plate 2, external mold 3, core 4, top die 5, powder core 6, external mold sticking film.
Detailed description of the invention
Embodiment 1, such as Fig. 1, mould is made up of backing plate (1), external mold (2), core (3) and top die (4), powder core (5) is circulus, external mold sticking film (6) is sticked in external mold (2) inner side, a kind of powder core mold materials design and preparation technology, it is characterised in that its processing step is as follows:
(1) raw material are chosen: choose FeSiB amorphous alloy strips, use width 10mm prepared by spray band method, thickness 28 μm, density 7.18 g/cm3, making composition is Fe78Si13B9Amorphous alloy strips；
(2) strip surface processes: according to KOH/ KNO3/H2O=500
G/50 g/1000g proportions treatment fluid；Treatment fluid is heated to 80 DEG C；Band is put into immersion 15min in liquid；Band, through surface process rear surface blackening, takes out band, cleans with water, then uses 120 DEG C of heating 60min in Muffle furnace；
(3) strip surface gluing: color is shallower and unusual light for band one side, and another side color is the most black；The more black face that gets colors is wear-resistant surface as coated face, another side, is coated with bonding glue on coated face；Glue epoxide-resin glue, epoxide-resin glue proportioning uses E44/E51 resin 100g, triethylene tetramine 10g, dibutyl phthalate 10g and acetone 100g, 20 DEG C of solidifications；After gluing after glue trickles automatically no longer till drip, or band is directly extracted after leaching in epoxide-resin glue, after glue trickles automatically no longer till drip；
(4) band after gluing or impregnation is tightly wound on plastics pole the annulus of thickness 10mm, and annulus density domination is at 6.0g/cm3Wear-resistant surface is leaned against inwardly on plastics pole during winding, the diameter of plastics pole is consistent with powder core (5) external diameter, coated face is attached to mould external mold (2) inner side, finally plastics pole is extracted out from annulus, wait that in annulus after adhesive curing, external mold sticking film (6) i.e. secure fit is on mould external mold (2) inwall.
Embodiment 2, such as Fig. 1, mould is made up of backing plate (1), external mold (2), core (3) and top die (4), powder core (5) is circulus, external mold sticking film (6) is sticked in external mold (2) inner side, a kind of powder core mold materials design and preparation technology, it is characterised in that its processing step is as follows:
(1) raw material are chosen: choose FeSiB amorphous alloy strips, use width 60mm prepared by spray band method, thickness 40 μm, density 7.25g/cm3, making composition is Fe78Si9B13Amorphous alloy strips；
(2) strip surface processes: according to KOH/ KNO3/H2O=800
G/100 g/1000g proportions treatment fluid；Treatment fluid is heated to 95 DEG C；Band is put into immersion 30min in liquid；Band, through surface process rear surface blackening, takes out band, cleans with water, then uses 120 DEG C of heating 60min in Muffle furnace；
(3) strip surface gluing: color is shallower and unusual light for band one side, and another side color is the most black；The more black face that gets colors is wear-resistant surface as coated face, another side, is coated with bonding glue on coated face；Glue epoxide-resin glue, epoxide-resin glue proportioning uses E44/E51 resin 100g, triethylene tetramine 20g, dibutyl phthalate 20g and acetone 100g, 120 DEG C of solidifications；After gluing after glue trickles automatically no longer till drip, or band is directly extracted after leaching in epoxide-resin glue, after glue trickles automatically no longer till drip；
(4) band after gluing or impregnation is tightly wound on plastics pole the annulus of thickness 40mm, and annulus density domination is at 7.0g/cm3Wear-resistant surface is leaned against inwardly on plastics pole during winding, the diameter of plastics pole is consistent with powder core (5) external diameter, coated face is attached to mould external mold (2) inner side, finally plastics pole is extracted out from annulus, wait that in annulus after adhesive curing, external mold sticking film (6) i.e. secure fit is on mould external mold (2) inwall.
Embodiment 3, such as Fig. 1, mould is made up of backing plate (1), external mold (2), core (3) and top die (4), powder core (5) is circulus, external mold sticking film (6) is sticked in external mold (2) inner side, a kind of powder core mold materials design and preparation technology, it is characterised in that its processing step is as follows:
(1) raw material are chosen: choose FeSiB amorphous alloy strips, use width 35mm prepared by spray band method, thickness 34 μm, density 7.21g/cm3, making composition is Fe78Si11B11Amorphous alloy strips；
(2) strip surface processes: according to KOH/ KNO3/H2O=650
G/75 g/1000g proportions treatment fluid；Treatment fluid is heated to 87.5 DEG C；Band is put into immersion 22.5min in liquid；Band, through surface process rear surface blackening, takes out band, cleans with water, then uses 120 DEG C of heating 60min in Muffle furnace；
(3) strip surface gluing: color is shallower and unusual light for band one side, and another side color is the most black；The more black face that gets colors is wear-resistant surface as coated face, another side, is coated with bonding glue on coated face；Glue epoxide-resin glue, epoxide-resin glue proportioning uses E44/E51 resin 100g, triethylene tetramine 15g, dibutyl phthalate 15g and acetone 100g, 70 DEG C of solidifications；After gluing after glue trickles automatically no longer till drip, or band is directly extracted after leaching in epoxide-resin glue, after glue trickles automatically no longer till drip；
(4) band after gluing or impregnation is tightly wound on plastics pole the annulus of thickness 34mm, and annulus density domination is at 6.0g/cm3Above, wear-resistant surface is leaned against inwardly on plastics pole during winding, the diameter of plastics pole is consistent with powder core (5) external diameter, coated face is attached to mould external mold (2) inner side, finally plastics pole is extracted out from annulus, wait that in annulus after adhesive curing, external mold sticking film (6) i.e. secure fit is on mould external mold (2) inwall.
The invention is not restricted to above example, to those of ordinary skill in the art, on the premise of without departing from present inventive concept and principle, it is also possible to make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (1)
1. a powder core mold materials design and preparation technology, it is characterised in that its processing step is as follows:
(1) raw material are chosen: choose FeSiB amorphous alloy strips, use width 10mm ~ 60mm prepared by spray band method, thickness 28 μm ~ 40 μm, density 7.18 ~ 7.25g/cm3, making composition is Fe78Si(22-x)Bx Amorphous alloy strips, wherein content is atomic percent, x=9 ~ 13；
(2) strip surface processes: according to KOH/ KNO3/ H2O=(500~800)
G/(50 ~ 100) g/1000g proportions treatment fluid；Treatment fluid is heated to 80 ~ 95 DEG C；Band is put into immersion 15 ~ 30min in liquid；Band, through surface process rear surface blackening, takes out band, cleans with water, then uses 120 DEG C of heating 60min in Muffle furnace；
(3) strip surface gluing: color is shallower and unusual light for band one side, and another side color is the most black；The more black face that gets colors is wear-resistant surface as coated face, another side, is coated with bonding glue on coated face；Glue epoxide-resin glue, epoxide-resin glue proportioning uses E44/E51 resin 100g, triethylene tetramine 10 ~ 20g, dibutyl phthalate 10 ~ 20g and acetone 100g, 20 DEG C ~ 120 DEG C solidifications；After gluing after glue trickles automatically no longer till drip, or band is directly extracted after leaching in epoxide-resin glue, after glue trickles automatically no longer till drip；
(4) band after gluing or impregnation is tightly wound on plastics pole the annulus of thickness >=10mm, and annulus density domination is at 6.0g/cm3Above, being leaned against inwardly by wear-resistant surface on plastics pole during winding, coated face is attached to, inside mould external mold, finally be extracted out from annulus by plastics pole, waits that in annulus after adhesive curing, external mold sticking film i.e. secure fit is on mould external mold inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092533.6A CN105761922A (en) | 2016-02-19 | 2016-02-19 | Magnetic powder core mold material design and preparation technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610092533.6A CN105761922A (en) | 2016-02-19 | 2016-02-19 | Magnetic powder core mold material design and preparation technology |
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| CN105761922A true CN105761922A (en) | 2016-07-13 |
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| CN201610092533.6A Pending CN105761922A (en) | 2016-02-19 | 2016-02-19 | Magnetic powder core mold material design and preparation technology |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63133610A (en) * | 1986-11-26 | 1988-06-06 | Matsushita Electric Works Ltd | Manufacture of magnetic core |
| CN1341153A (en) * | 1999-01-19 | 2002-03-20 | 安费尤吉纳精密公司 | Method for treating brittle thin metal strip and magnetic parts made from nanocrystalline alloy strip |
| CN101572182A (en) * | 2009-02-27 | 2009-11-04 | 国电环境保护研究院 | Ultracrystalline transformer core manufacturing method and special mould therefor |
| CN103128039A (en) * | 2011-12-01 | 2013-06-05 | 上海电气集团股份有限公司 | Coating method of winding amorphous iron core insulating coating |
-
2016
- 2016-02-19 CN CN201610092533.6A patent/CN105761922A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63133610A (en) * | 1986-11-26 | 1988-06-06 | Matsushita Electric Works Ltd | Manufacture of magnetic core |
| CN1341153A (en) * | 1999-01-19 | 2002-03-20 | 安费尤吉纳精密公司 | Method for treating brittle thin metal strip and magnetic parts made from nanocrystalline alloy strip |
| CN101572182A (en) * | 2009-02-27 | 2009-11-04 | 国电环境保护研究院 | Ultracrystalline transformer core manufacturing method and special mould therefor |
| CN103128039A (en) * | 2011-12-01 | 2013-06-05 | 上海电气集团股份有限公司 | Coating method of winding amorphous iron core insulating coating |
Non-Patent Citations (1)
| Title |
|---|
| 卢慧芳，朱正吼，徐雪娇: "《铁基纳米晶带材的表面氧化处理及其软磁性能》", 《功能材料》 * |
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Application publication date: 20160713 |