CN101950661A - Method for manufacturing magnetic ring from carbonyl iron powder - Google Patents
Method for manufacturing magnetic ring from carbonyl iron powder Download PDFInfo
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- CN101950661A CN101950661A CN 201010272747 CN201010272747A CN101950661A CN 101950661 A CN101950661 A CN 101950661A CN 201010272747 CN201010272747 CN 201010272747 CN 201010272747 A CN201010272747 A CN 201010272747A CN 101950661 A CN101950661 A CN 101950661A
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Abstract
The invention relates to a method for manufacturing a magnetic ring from carbonyl iron powder, which comprises the following steps of: spraying a carbonyl iron powder material which has ultra-high purity, more than or equal to 97 percent of iron, the impurity type of not exceeding 4 and the particle size of less than or equal to 3.0mu m under high pressure, adding an insulation adhesive into the material in a mass ratio of 1:5 to wrap a carbonyl iron powder core to separate particles from one another so as to achieve high insulation effect; meanwhile, pressing with a mold to form a certain shape and make the material have certain mechanical strength, performing thermal ageing to form a sensitive magnetic material, and performing surface treatment. The manufactured magnetic ring has the characteristics of high saturation magnetic flux density and simple process.
Description
Technical field
The present invention relates to the manufacture method of magnet ring, be specifically related to the method that a kind of carbonyl iron dust is made magnet ring.
Background technology
Magnet ring has different impedance operators under different frequencies, generally impedance is very little when low frequency, the impedance that shows when signal frequency rising magnet ring sharply raises, the manufacturing process complexity of existing magnet ring, need mist projection granulating complete set equipment to make processing, loss is big, and saturation flux density is generated heat in the use easily less than 1000Gs.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide a kind of carbonyl iron dust to make the method for magnet ring, have higher saturation flux density, the technology characteristic of simple.
To achieve these goals, technical scheme of the present invention is:
A kind of carbonyl iron dust is made the method for magnet ring, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust: adopt Electronic Speculum the raw material composition to be identified that iron content quality purity 〉=97% of selected carbonyl iron dust, dopant species are no more than 4 kinds in conjunction with the method for physico-chemical analysis; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the processing of second step is carried out the preheating burin-in process, temperature is chosen between 60-70 ℃, and the time guarantees that at 1.9-2.1 hour the carbonyl iron dust temperature is even, humidity＞90;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are 1: 5 mixed according to mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, after ball milling 2.9-3.1 hour, placed 6-6.5 hour in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio;
The 5th step, select mould as required for use,, handled the material of back gained the 4th step and suppress at the hydraulic test more than 10 tons with pressure, make magnet ring density after the moulding between 4.9-5.2;
In the 6th step, the magnet ring after the moulding is heat-treated: select for use precision at 2 ℃ baking oven, adopt the gradient temperature processing mode,, raise 20 ℃, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature every 2 hours from normal temperature;
The 7th step, at last, magnet ring is carried out surface treatment, adopt contactless dipping technique, under 120-130 ℃ temperature conditions, kept 2-2.5 hour, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
Embodiment
Below in conjunction with specific embodiment the present invention is described in further detail.
Embodiment one
A kind of carbonyl iron dust is made the method for magnet ring, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust: adopt Electronic Speculum the raw material composition to be identified that iron content quality purity 〉=97% of selected carbonyl iron dust, dopant species are no more than 4 kinds in conjunction with the method for physico-chemical analysis; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the processing of second step is carried out the preheating burin-in process, temperature is chosen in 60 ℃, and the time guaranteed that the carbonyl iron dust temperature was even, humidity＞90 at 2 hours;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are according to 1: 5 mixed of mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, behind the ball milling 3 hours, placed 6 hours in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio;
In the 5th step, select for use specifications and models to be
Mould, pressure is suppressed the material after the above-mentioned processing at the hydraulic test more than 10 tons, guarantees that magnet ring density after the moulding is 5;
In the 6th step, the magnet ring after the moulding is heat-treated: select for use precision at 2 ℃ baking oven, adopt the gradient temperature processing mode,, raise 20 ℃, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature every 2 hours from normal temperature;
The 7th step, at last magnet ring is carried out surface treatment, adopt contactless dipping technique, under 120 ℃ temperature conditions, kept 2 hours, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
Embodiment two
A kind of carbonyl iron dust is made the method for magnet ring, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust, adopts Electronic Speculum the raw material composition to be identified that iron content quality purity 〉=97% of selected carbonyl iron dust, dopant species are no more than 4 kinds in conjunction with the method for physico-chemical analysis; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the phosphatization processing of second step is carried out the preheating burin-in process, temperature is chosen between 65 ℃, and the time guaranteed at 1.9 hours, guaranteed that the carbonyl iron dust temperature reaches evenly humidity＞90;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are according to 1: 5 mixed of mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, after ball milling 2.9-3.1 hour, placed 6.5 hours in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, fully mixes with absolute alcohol according to 1: 5 ratio of mass ratio;
In the 5th step, select for use specifications and models to be
Mould,, at the hydraulic test more than 10 tons the material after the above-mentioned processing is suppressed with pressure, guarantee that magnet ring density after the moulding is 4.9;
The 6th step, the magnet ring after the moulding is heat-treated, select for use precision at 2 ℃ baking oven, adopt the gradient temperature processing mode, from normal temperature, raise 20 ℃ every 2 hours, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature;
The 7th step, at last, magnet ring is carried out surface treatment, adopt contactless dipping technique, under 125 ℃ temperature conditions, kept 2.2 hours, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
Embodiment three
A kind of carbonyl iron dust is made the method for magnet ring, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust: adopt Electronic Speculum in conjunction with the method for physico-chemical analysis the raw material composition to be identified, iron content quality purity 〉=97% of selected carbonyl iron dust, comprise that purity 〉=97%, the dopant species of iron content are no more than 4 kinds; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the phosphatization processing of second step is carried out the preheating burin-in process, temperature is chosen between 70 ℃, and the time guaranteed at 2.1 hours, guaranteed that the carbonyl iron dust temperature reaches evenly, humidity＞90;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are according to 1: 5 mixed of mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, behind the ball milling 3.1 hours, placed 6.5 hours in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, fully mixes with absolute alcohol according to 1: 5 ratio of mass ratio;
In the 5th step, select for use specifications and models to be
Mould,, at the hydraulic test more than 10 tons the material after the above-mentioned processing is suppressed with pressure, guarantee that magnet ring density after the moulding is between 5.2;
In the 6th step, the magnet ring after the moulding is heat-treated: select for use precision at 2 ℃ high temperature oven, adopt the gradient temperature processing mode,, raise 20 ℃, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature every 2 hours from normal temperature;
The 7th step, at last magnet ring is carried out surface treatment, adopt contactless dipping technique, under 130 ℃ temperature conditions, kept 2.5 hours, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
Claims (4)
1. a carbonyl iron dust is made the method for magnet ring, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust: adopt Electronic Speculum the raw material composition to be identified that iron content quality purity 〉=97% of selected carbonyl iron dust, dopant species are no more than 4 kinds in conjunction with the method for physico-chemical analysis; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the processing of second step is carried out the preheating burin-in process, temperature is chosen between 60-70 ℃, and the time guarantees that at 1.9-2.1 hour the carbonyl iron dust temperature is even, humidity＞90;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are 1: 5 mixed according to mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, after ball milling 2.9-3.1 hour, placed 6-6.5 hour in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio;
The 5th step, select mould as required for use,, handled the material of back gained the 4th step and suppress at the hydraulic test more than 10 tons with pressure, make magnet ring density after the moulding between 4.9-5.2;
In the 6th step, the magnet ring after the moulding is heat-treated: select for use precision at 2 ℃ baking oven, adopt the gradient temperature processing mode,, raise 20 ℃, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature every 2 hours from normal temperature;
The 7th step, at last, magnet ring is carried out surface treatment, adopt contactless dipping technique, under 120-130 ℃ temperature conditions, kept 2-2.5 hour, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
2. a kind of carbonyl iron dust according to claim 1 is made the method for magnet ring, it is characterized in that, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust: adopt Electronic Speculum the raw material composition to be identified that iron content quality purity 〉=97% of selected carbonyl iron dust, dopant species are no more than 4 kinds in conjunction with the method for physico-chemical analysis; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the processing of second step is carried out the preheating burin-in process, temperature is chosen in 60 ℃, and the time guaranteed that the carbonyl iron dust temperature was even, humidity＞90 at 2 hours;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are according to 1: 5 mixed of mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, behind the ball milling 3 hours, placed 6 hours in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio;
In the 5th step, select for use specifications and models to be
Mould, pressure is suppressed the material after the above-mentioned processing at the hydraulic test more than 10 tons, guarantees that magnet ring density after the moulding is 5;
In the 6th step, the magnet ring after the moulding is heat-treated: select for use precision at 2 ℃ baking oven, adopt the gradient temperature processing mode,, raise 20 ℃, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature every 2 hours from normal temperature;
The 7th step, at last magnet ring is carried out surface treatment, adopt contactless dipping technique, under 120 ℃ temperature conditions, kept 2 hours, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
3. a kind of carbonyl iron dust according to claim 1 is made the method for magnet ring, it is characterized in that, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust, adopts Electronic Speculum the raw material composition to be identified that iron content quality purity 〉=97% of selected carbonyl iron dust, dopant species are no more than 4 kinds in conjunction with the method for physico-chemical analysis; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the phosphatization processing of second step is carried out the preheating burin-in process, temperature is chosen between 65 ℃, and the time guaranteed at 1.9 hours, guaranteed that the carbonyl iron dust temperature reaches evenly humidity＞90;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are according to 1: 5 mixed of mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, after ball milling 2.9-3.1 hour, placed 6.5 hours in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, fully mixes with absolute alcohol according to 1: 5 ratio of mass ratio;
In the 5th step, select for use specifications and models to be
Mould,, at the hydraulic test more than 10 tons the material after the above-mentioned processing is suppressed with pressure, guarantee that magnet ring density after the moulding is 4.9;
The 6th step, the magnet ring after the moulding is heat-treated, select for use precision at 2 ℃ baking oven, adopt the gradient temperature processing mode, from normal temperature, raise 20 ℃ every 2 hours, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature;
The 7th step, at last, magnet ring is carried out surface treatment, adopt contactless dipping technique, under 125 ℃ temperature conditions, kept 2.2 hours, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
4. a kind of carbonyl iron dust according to claim 1 is made the method for magnet ring, it is characterized in that, may further comprise the steps:
The first step is selected the raw material carbonyl iron dust: adopt Electronic Speculum in conjunction with the method for physico-chemical analysis the raw material composition to be identified, iron content quality purity 〉=97% of selected carbonyl iron dust, comprise that purity 〉=97%, the dopant species of iron content are no more than 4 kinds; Utilize Particle Size Analyzer that raw-material granularity is tested, the granularity≤3.0um of selected carbonyl iron dust;
In second step, utilize the high-pressure fog method to handle to the carbonyl iron dust after selecting, promptly in the round barrel shape metal sealer, pressure pressure need reach more than the 10Mpa, moment pressurizes three times continuously, its agglomerated masses material is separated fully, subsequently by the action of gravity natural separation; With its marginal portion material of ultramicroscopic observation, till the edge forms spherical hollow shelly;
The 3rd step, the carbonyl iron dust after the phosphatization processing of second step is carried out the preheating burin-in process, temperature is chosen between 70 ℃, and the time guaranteed at 2.1 hours, guaranteed that the carbonyl iron dust temperature reaches evenly, humidity＞90;
The 4th step, the carbonyl iron dust of preheating burin-in process and insulating binder medium are according to 1: 5 mixed of mass ratio, utilize planetary ball mill under 120 rev/mins speed conditions, behind the ball milling 3.1 hours, placed 6.5 hours in the air, by 40 purpose screen clothes, can carry out this operation of repetition to unsanctioned material;
It is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, fully mixes with absolute alcohol according to 1: 5 ratio of mass ratio;
In the 5th step, select for use specifications and models to be
Mould,, at the hydraulic test more than 10 tons the material after the above-mentioned processing is suppressed with pressure, guarantee that magnet ring density after the moulding is between 5.2;
In the 6th step, the magnet ring after the moulding is heat-treated: select for use precision at 2 ℃ high temperature oven, adopt the gradient temperature processing mode,, raise 20 ℃, during promotion to 130 ℃, be incubated 2.5 hours, naturally cool to room temperature every 2 hours from normal temperature;
The 7th step, at last magnet ring is carried out surface treatment, adopt contactless dipping technique, under 130 ℃ temperature conditions, kept 2.5 hours, make insulating binder medium full solidification be adsorbed to the magnet ring surface, it is the macromolecular material of 14-6 that described insulating binder medium is selected the Quan Chuo moudling powder trade mark for use, is that 1: 5 ratio is fully mixed with absolute alcohol according to mass ratio.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102727474A CN101950661B (en) | 2010-09-03 | 2010-09-03 | Method for manufacturing magnetic ring from carbonyl iron powder |
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| CN2010102727474A CN101950661B (en) | 2010-09-03 | 2010-09-03 | Method for manufacturing magnetic ring from carbonyl iron powder |
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| CN101950661B CN101950661B (en) | 2012-07-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646775A (en) * | 2013-11-26 | 2014-03-19 | 宝鸡烽火诺信科技有限公司 | Method for preparing special-shaped magnetic core by thermoplastic injection molded iron-based composite materials |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100509684B1 (en) * | 2004-02-27 | 2005-08-24 | 주식회사 코아전자 | Smd power inductor core using micro carbonyle iron powder |
| JP3149212U (en) * | 2008-11-04 | 2009-03-19 | 積進工業株式会社 | SMD choke coil |
| US20090191421A1 (en) * | 2008-01-24 | 2009-07-30 | Delta Electronics, Inc. | Composite soft magnetic powdery material and magnetically biasing permanent magnetic core containing same |
-
2010
- 2010-09-03 CN CN2010102727474A patent/CN101950661B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100509684B1 (en) * | 2004-02-27 | 2005-08-24 | 주식회사 코아전자 | Smd power inductor core using micro carbonyle iron powder |
| US20090191421A1 (en) * | 2008-01-24 | 2009-07-30 | Delta Electronics, Inc. | Composite soft magnetic powdery material and magnetically biasing permanent magnetic core containing same |
| JP3149212U (en) * | 2008-11-04 | 2009-03-19 | 積進工業株式会社 | SMD choke coil |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103646775A (en) * | 2013-11-26 | 2014-03-19 | 宝鸡烽火诺信科技有限公司 | Method for preparing special-shaped magnetic core by thermoplastic injection molded iron-based composite materials |
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| CN101950661B (en) | 2012-07-18 |
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