CN109285683A - A kind of method of stable chip inductance performance - Google Patents
A kind of method of stable chip inductance performance Download PDFInfo
- Publication number
- CN109285683A CN109285683A CN201811266612.XA CN201811266612A CN109285683A CN 109285683 A CN109285683 A CN 109285683A CN 201811266612 A CN201811266612 A CN 201811266612A CN 109285683 A CN109285683 A CN 109285683A
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- China
- Prior art keywords
- product
- liquid nitrogen
- stable
- container
- inductance performance
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Classifications
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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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
The invention discloses a kind of methods of stable chip inductance performance, belong to the technical field of stable inductance performance.Chip inductor is placed into special screens container, the mesh container equipped with product is slowly immersed in the rustless steel container for filling liquid nitrogen and guarantees that product is totally immersed into liquid nitrogen, and is sealed.After 3-5 minutes, product is taken out, and pour into stainless steel sieve and hang 1-2 hours, then 80-100 DEG C of wind drenches 10-20 minutes after drying and stands 24 hours, product selecting test.The properties of product handled through this method are stable and meet the requirement of reliability test required by inductance.
Description
Technical field
The present invention relates to a kind of technology of stable chip inductance performance, in particular to a kind of side of stable chip inductance performance
Method.
Background technique
As electronic product develops to miniaturization, slimming, high frequency direction, to all technical of electronic component
More stringent requirements are proposed, and inductor is a kind of energy-storage travelling wave tube, electric energy can be converted into magnetic field energy, and energy is stored in magnetic field energy
Amount, chip inductor meet miniaturization of electronic products, the development trend of high frequency, have pushed the development of surface installation technique, piece
Formula inductor also develops rapidly.
Soft magnetic ferrite chip inductor, due to the influence of high-temperature factor, causes properties of product unstable in sintering process,
Even deviate from design centre value, it will usually which select magnet magnetization or discarded method processing, magnetic efficiency is unobvious, and product
Performance is unstable, and waste treatment causes cost to increase.
Summary of the invention
The present invention is in view of the above-mentioned problems, the side for taking liquid nitrogen cryogenics to handle the chip inductor for deviateing design centre value
Method makes the magnetic domain of product change, stabilizes inductance performance.
For achieving the above object, the present invention the following technical schemes are provided:
Liquid nitrogen pours into rustless steel container, and seals.Take aberrations in property big, unstable product is placed product dedicated
Mesh container, mesh container are made using stainless steel cloth and stainless reinforcing bar, and the selection of screen diameter is advisable with not leaking product, sieve
Mesh belt has major diameter handle, and handle is exposed at outside rustless steel container, conveniently takes.Mesh container equipped with product is slowly immersed in stainless
In the liquid nitrogen of steel container and guarantee that product is totally immersed into liquid nitrogen, and seal, after 3-5 minutes, takes out product, and pour into not
Rust steel drying sieve is hung 1-2 hours, reuses wind leaching drying box, and 80-100 DEG C of wind stands 24 hours after drenching drying in 10-20 minutes,
Test product performance.Treated in the method, and inductance performance is stablized, and carries out according to relevant criterion to the product
Reliability test, test result are met the requirements of the standard.
Beneficial effects of the present invention: it after taking liquid nitrogen to handle the chip inductor for deviateing design centre value, demonstrate,proves after tested
It is bright, the magnetic conductivity of chip inductor is not only increased, and the stability of its product improves there has also been apparent.
Specific embodiment
According to above-mentioned liquid nitrogen processing method, the time is handled to liquid nitrogen and drying temperature carries out verifying implementation, most by product
The validity of result is embodied to determine for whole performance test.
Liquid nitrogen: the nitrogen of liquid.Be it is inert, colourless, odorless, non-corrosive, non-combustible, temperature is extremely low.Nitrogen constitutes atmosphere
Major part (volume ratio 78.03%, weight ratio 75.5%).Nitrogen be it is inactive, do not support to burn.It largely absorbs heat when vaporization contact
Cause frostbite.
Under normal pressure, liquid nitrogen temperature is -196 DEG C;1 cubic metre of liquid nitrogen can be expanded to 696 cubic metres 21 °C of pure gas
State nitrogen.Liquid nitrogen is colourless, tasteless, liquids and gases of low temperature under high pressure.
Liquid nitrogen (is often written as LN2), is the liquid form that nitrogen is formed at low temperature.The boiling point of nitrogen is -196 °C, normal
Temperature is if will form liquid nitrogen if this is following under atmospheric pressure;If pressurization, can obtain liquid nitrogen at higher temperatures..
In the industry, liquid nitrogen is obtained by air distillation.First by after air cleaning, liquefies, borrow under pressurization, cooling environment
It is separated by the boiling point difference of each group in air point.Nitrogen (the 78.09% of duty air volume) is released at first (and not by liquid
Change), then be finally the oxygen for accounting for 20.95% being in duty gas 0.93% rare gas.Human skin directly contacts liquid nitrogen wink
Between be what there is no problem, just can frostbite and irreversible more than 2 seconds.
Claims (4)
1. a kind of method of stable chip inductance performance, it is characterised in that produced using the unstable inductance of liquid nitrogen cold treatment performance
Product is placed special screens container and immerses liquid nitrogen and taken out after a certain period of time, hung and dry by product.
2. a kind of method of stable chip inductance performance according to claim 1, it is characterised in that mesh container is stainless
Steel cylinder or other shapes of mesh container, mesh size are advisable with not leaking product.
3. a kind of method of stable chip inductance performance according to claim 1, it is characterised in that product immerses liquid nitrogen one
Fixing time is 3-5 minutes, hangs to dry in stainless steel after taking-up and sieve, the time is 1-2 hours.
4. a kind of method of stable chip inductance performance according to claim 1, it is characterised in that drying course uses wind
Drying box is drenched, 80-100 DEG C of drying temperature, the time is 10-20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266612.XA CN109285683A (en) | 2018-10-29 | 2018-10-29 | A kind of method of stable chip inductance performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811266612.XA CN109285683A (en) | 2018-10-29 | 2018-10-29 | A kind of method of stable chip inductance performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109285683A true CN109285683A (en) | 2019-01-29 |
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ID=65178102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811266612.XA Pending CN109285683A (en) | 2018-10-29 | 2018-10-29 | A kind of method of stable chip inductance performance |
Country Status (1)
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| CN (1) | CN109285683A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568808A (en) * | 2012-01-19 | 2012-07-11 | 邹光荣 | Cold-heat circulation aging treatment method for increasing magnetic stability of permanent magnets |
| CN106169362A (en) * | 2016-08-24 | 2016-11-30 | 宁波华众和创工业设计有限公司 | A kind of common mode inductance applying high stability ultracrystalline magnetic core and manufacture method thereof |
| CN106847468A (en) * | 2017-01-17 | 2017-06-13 | 宁波华众和创工业设计有限公司 | A kind of magnetic shielding inductor high and its manufacture method for applying molybdenum perm magnetic core |
| CN107742572A (en) * | 2016-08-24 | 2018-02-27 | 宁波华众和创工业设计有限公司 | A kind of inductor and its manufacture method for applying high stability molybdenum perm magnetic core |
-
2018
- 2018-10-29 CN CN201811266612.XA patent/CN109285683A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102568808A (en) * | 2012-01-19 | 2012-07-11 | 邹光荣 | Cold-heat circulation aging treatment method for increasing magnetic stability of permanent magnets |
| CN106169362A (en) * | 2016-08-24 | 2016-11-30 | 宁波华众和创工业设计有限公司 | A kind of common mode inductance applying high stability ultracrystalline magnetic core and manufacture method thereof |
| CN107742572A (en) * | 2016-08-24 | 2018-02-27 | 宁波华众和创工业设计有限公司 | A kind of inductor and its manufacture method for applying high stability molybdenum perm magnetic core |
| CN106847468A (en) * | 2017-01-17 | 2017-06-13 | 宁波华众和创工业设计有限公司 | A kind of magnetic shielding inductor high and its manufacture method for applying molybdenum perm magnetic core |
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Application publication date: 20190129 |