CN106158215A - A kind of filter inductance granule and preparation method thereof - Google Patents

A kind of filter inductance granule and preparation method thereof Download PDF

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Publication number
CN106158215A
CN106158215A CN201610683379.XA CN201610683379A CN106158215A CN 106158215 A CN106158215 A CN 106158215A CN 201610683379 A CN201610683379 A CN 201610683379A CN 106158215 A CN106158215 A CN 106158215A
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CN
China
Prior art keywords
oxide
parts
granule
filter inductance
polyvinyl alcohol
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CN201610683379.XA
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Chinese (zh)
Inventor
邱广茂
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Lu Chuan County Huaxin Electronics Factory
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Lu Chuan County Huaxin Electronics Factory
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Publication date
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Priority to CN201610683379.XA priority Critical patent/CN106158215A/en
Publication of CN106158215A publication Critical patent/CN106158215A/en
Pending legal-status Critical Current

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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/09Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials mixtures of metallic and non-metallic particles; metallic particles having oxide skin
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00Making metallic powder or suspensions thereof
    • B22F9/02Making metallic powder or suspensions thereof using physical processes
    • B22F9/06Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00Fixed inductances of the signal type 
    • H01F17/04Fixed inductances of the signal type  with magnetic core
    • H01F2017/048Fixed inductances of the signal type  with magnetic core with encapsulating core, e.g. made of resin and magnetic powder

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Soft Magnetic Materials (AREA)

Abstract

The invention provides a kind of filter inductance granule, raw material forms according to following portion rate: magnetic powder 82 100 parts, iron oxide red 6 17 parts, bismuth oxide 0.3 1.2 parts, copper oxide 0.3 0.8 parts, calcium carbonate 0.4 0.8 parts, polyvinyl alcohol 11 18 parts, Cobalto-cobaltic oxide 0.1 1.2 parts, 0.6 1.0 parts of lead oxide, 100 120 parts of water.A kind of filter inductance granule that the present invention provides has the features such as anticorrosion, high electromagnetic performance, easy processing, uses this material can shorten the device production cycle, reduces labour force.

Description

A kind of filter inductance granule and preparation method thereof
Technical field
The present invention relates to inductors technique field, particularly relate to a kind of filter inductance granule and preparation method thereof.
Background technology
Filter inductance typically uses Ferrite Material, and it can combine with feedthrough capacitor easily, forms composite filter Ripple device, in high performance filter, is also adopted by line around inductance.But it may be noted that ferrite material can occur magnetic saturation under big electric current, Reduce wave filter usefulness.
The magnetic material of traditional solid-state inductance is using iron powder such as reduced iron powder, carbonyl iron dust as base material, adds passivation The pelletizes such as agent, binding agent, releasing agent, then by dry-pressing formed method, coil is compressed on inside magnetic powder, will outward after product solidification Portion is coated, and is processed by pins of products, produces solid-state inductance.This material can meet the requirement of magnetic property, works as ring Border badly as high humidity, high salt adverse circumstances time, need device is protected, be typically employed in device surface and be coated, Veneer is carried out the measures such as sealing, so ensures overall performance.But the heat radiation that increase coat can cause device is bad, and device Part temperature rise, causes the service life reduction of device.
Summary of the invention
For solving the technical problem of above-mentioned existence, the invention provides a kind of filter inductance granule and preparation method thereof.
The technical scheme that the present invention provides is as follows:
A kind of filter inductance granule, raw material forms according to following portion rate:
Magnetic powder 82-100 part, iron oxide red 6-17 part, bismuth oxide 0.3-1.2 part, copper oxide 0.3-0.8 part, calcium carbonate 0.4-0.8 part, Polyvinyl alcohol 11-18 part, Cobalto-cobaltic oxide 0.1-1.2 part, lead oxide 0.6-1.0 part, water 100-120 part.
Further illustrating, described a kind of filter inductance granule, raw material forms according to following portion rate:
Magnetic powder 89 parts, iron oxide red 12 parts, bismuth oxide 0.9 part, copper oxide 0.6 part, calcium carbonate 0.5 part, polyvinyl alcohol 13 parts, four oxidations Three cobalts 0.9 part, 0.8 part of lead oxide, 102 parts of water.
Further illustrate, the preparation method of described a kind of filter inductance granule, comprise the steps:
(1) mixed powder will be obtained at magnetic powder, iron oxide red, bismuth oxide, copper oxide, calcium carbonate, Cobalto-cobaltic oxide, lead oxide mix homogeneously Material;
(2) mixed powder and the polyvinyl alcohol of step (1) gained being added water and carry out ball-milling treatment, Ball-milling Time is 8-10 hour Obtain slurry,
(3) slurry that step (2) prepares is put into and carried out pelletize process in Pressuresprayingdrier, described pressure spray dryer The atomisation pressure of machine is 2.5-3.2Mpa, i.e. can get filter inductance granule.
Beneficial effects of the present invention is as follows:
A kind of filter inductance granule that the present invention provides has the features such as anticorrosion, high electromagnetic performance, easy processing, uses this material The device production cycle can be shortened, reduce labour force.
Detailed description of the invention
Below in conjunction with the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, Obviously, described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the reality in the present invention Execute example, the every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly fall into The scope of protection of the invention.
Embodiment 1
A kind of filter inductance granule, raw material forms according to following portion rate:
Magnetic powder 82 parts, iron oxide red 6 parts, bismuth oxide 0.3 part, copper oxide 0.3 part, calcium carbonate 0.4 part, polyvinyl alcohol 11 parts, four oxidations Three cobalts 0.1 part, 0.6 part of lead oxide, 100 parts of water.
Further illustrate, the preparation method of described a kind of filter inductance granule, comprise the steps:
(1) mixed powder will be obtained at magnetic powder, iron oxide red, bismuth oxide, copper oxide, calcium carbonate, Cobalto-cobaltic oxide, lead oxide mix homogeneously Material;
(2) mixed powder and the polyvinyl alcohol of step (1) gained being added water and carry out ball-milling treatment, Ball-milling Time is to obtain for 8 hours To slurry,
(3) slurry that step (2) prepares is put into and carried out pelletize process in Pressuresprayingdrier, described pressure spray dryer The atomisation pressure of machine is 2.5Mpa, i.e. can get filter inductance granule.
Embodiment 2
A kind of filter inductance granule, raw material forms according to following portion rate:
Magnetic powder 100 parts, iron oxide red 17 parts, bismuth oxide 1.2 parts, copper oxide 0.8 part, calcium carbonate 0.8 part, polyvinyl alcohol 18 parts, four oxygen Change three cobalt 1.2 parts, 1.0 parts of lead oxide, 120 parts of water.
The preparation method of described a kind of filter inductance granule, comprises the steps:
(1) mixed powder will be obtained at magnetic powder, iron oxide red, bismuth oxide, copper oxide, calcium carbonate, Cobalto-cobaltic oxide, lead oxide mix homogeneously Material;
(2) mixed powder and the polyvinyl alcohol of step (1) gained being added water and carry out ball-milling treatment, Ball-milling Time is to obtain for 10 hours To slurry,
(3) slurry that step (2) prepares is put into and carried out pelletize process in Pressuresprayingdrier, described pressure spray dryer The atomisation pressure of machine is 3.2Mpa, i.e. can get filter inductance granule.
Embodiment 3
A kind of filter inductance granule, raw material forms according to following portion rate:
Magnetic powder 89 parts, iron oxide red 12 parts, bismuth oxide 0.9 part, copper oxide 0.6 part, calcium carbonate 0.5 part, polyvinyl alcohol 13 parts, four oxidations Three cobalts 0.9 part, 0.8 part of lead oxide, 102 parts of water.
Further illustrate, the preparation method of described a kind of filter inductance granule, comprise the steps:
(1) mixed powder will be obtained at magnetic powder, iron oxide red, bismuth oxide, copper oxide, calcium carbonate, Cobalto-cobaltic oxide, lead oxide mix homogeneously Material;
(2) mixed powder and the polyvinyl alcohol of step (1) gained being added water and carry out ball-milling treatment, Ball-milling Time is to obtain for 9 hours To slurry,
(3) slurry that step (2) prepares is put into and carried out pelletize process in Pressuresprayingdrier, described pressure spray dryer The atomisation pressure of machine is 2.9Mpa, i.e. can get filter inductance granule.
Above-described embodiment is the present invention preferably embodiment, but embodiments of the present invention are not by above-described embodiment Limit, the change made under other any spirit without departing from the present invention and principle, modify, substitute, combine, simplify, All should be the substitute mode of equivalence, within being included in protection scope of the present invention.

Claims (3)

1. a filter inductance granule, it is characterised in that raw material forms according to following portion rate:
Magnetic powder 82-100 part, iron oxide red 6-17 part, bismuth oxide 0.3-1.2 part, copper oxide 0.3-0.8 part, calcium carbonate 0.4-0.8 part, Polyvinyl alcohol 11-18 part, Cobalto-cobaltic oxide 0.1-1.2 part, lead oxide 0.6-1.0 part, water 100-120 part.
A kind of filter inductance granule the most according to claim 1, it is characterised in that raw material is according to following portion rate group Become:
Magnetic powder 89 parts, iron oxide red 12 parts, bismuth oxide 0.9 part, copper oxide 0.6 part, calcium carbonate 0.5 part, polyvinyl alcohol 13 parts, four oxidations Three cobalts 0.9 part, 0.8 part of lead oxide, 102 parts of water.
The preparation method of a kind of filter inductance granule the most according to claim 1, it is characterised in that comprise the steps:
(1) mixed powder will be obtained at magnetic powder, iron oxide red, bismuth oxide, copper oxide, calcium carbonate, Cobalto-cobaltic oxide, lead oxide mix homogeneously Material;
(2) mixed powder and the polyvinyl alcohol of step (1) gained being added water and carry out ball-milling treatment, Ball-milling Time is 8-10 hour Obtain slurry;
(3) slurry that step (2) prepares is put into and carried out pelletize process in Pressuresprayingdrier, described pressure spray dryer The atomisation pressure of machine is 2.5-3.2Mpa, i.e. can get filter inductance granule.
CN201610683379.XA 2016-08-18 2016-08-18 A kind of filter inductance granule and preparation method thereof Pending CN106158215A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610683379.XA CN106158215A (en) 2016-08-18 2016-08-18 A kind of filter inductance granule and preparation method thereof

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Application Number Priority Date Filing Date Title
CN201610683379.XA CN106158215A (en) 2016-08-18 2016-08-18 A kind of filter inductance granule and preparation method thereof

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CN106158215A true CN106158215A (en) 2016-11-23

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0891917A (en) * 1994-09-19 1996-04-09 Matsushita Electric Ind Co Ltd Ferrite material and its production
CN1305200A (en) * 2000-10-30 2001-07-25 广东肇庆风华电子工程开发有限公司 Low-tmep sintered material for inductor
CN104157413A (en) * 2014-07-24 2014-11-19 湖州南浔双林明宇电子元件厂 Environment-friendly H-shaped filter inductance magnetic core particles and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0891917A (en) * 1994-09-19 1996-04-09 Matsushita Electric Ind Co Ltd Ferrite material and its production
CN1305200A (en) * 2000-10-30 2001-07-25 广东肇庆风华电子工程开发有限公司 Low-tmep sintered material for inductor
CN104157413A (en) * 2014-07-24 2014-11-19 湖州南浔双林明宇电子元件厂 Environment-friendly H-shaped filter inductance magnetic core particles and preparation method thereof

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Application publication date: 20161123