CN106365642A - Production process of power type magnetic substrate - Google Patents
Production process of power type magnetic substrate Download PDFInfo
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- CN106365642A CN106365642A CN201610776608.2A CN201610776608A CN106365642A CN 106365642 A CN106365642 A CN 106365642A CN 201610776608 A CN201610776608 A CN 201610776608A CN 106365642 A CN106365642 A CN 106365642A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/34—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials non-metallic substances, e.g. ferrites
- H01F1/342—Oxides
- H01F1/344—Ferrites, e.g. having a cubic spinel structure (X2+O)(Y23+O3), e.g. magnetite Fe3O4
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
- C04B2235/658—Atmosphere during thermal treatment
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Soft Magnetic Materials (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a production process of a power type magnetic substrate. The process includes the five steps of carrying out compression forming; carrying out sintering, wherein a side-by-side stacking sintering process with multistep temperature regulation under nitrogen protection is adopted; carrying out cutting; carrying out polishing; carrying out detection. The process has the advantages that the product procedure percent of pass and the overall finished product rate are increased, the electrical property index and other technically required indexes are good in consistency, and energy consumption and cost are reduced.
Description
Technical field
The present invention relates to electronic device preparing technical field, especially relate to a kind of raising product sequence qualification rate and synthesis
Yield rate, electrical performance indexes and other technical requirements concordance are good, energy efficient, and cost-effective power-type magnetics substrate produces work
Skill.
Background technology
Soft magnetic ferrite magnetic material, its range of application and field and its a kind of extensive, soft magnet oxygen of new power type
Structure base board, will be widely used in wireless charging application, by substitute original wired charging brought inconvenient, dangerous,
Not a series of problems, such as energy-conservation.Because the power-type magnetics substrate precision prescribed of wireless charging is high, requirement on electric performance scope is little, its
Surface area is in 300 mm2More than, and thickness is respectively less than below 1.5mm, there is difficult forming, sintering with conventional production process
The serious problems such as deformation is serious, are extremely difficult to its performance and required precision, forming amount production difficulty is very big.
Content of the invention
The goal of the invention of the present invention is that there is molding in order to overcome in prior art using conventional magnetics substrate production technology
The problems such as difficult, sintering deformation is serious, product is extremely difficult to its performance and required precision, and forming amount production difficulty is greatly not
Foot, there is provided a kind of raising product sequence qualification rate and integrated yield, electrical performance indexes and other technical requirements concordance are good,
Energy efficient, cost-effective power-type magnetics substrate production technology.
To achieve these goals, the present invention employs the following technical solutions:
A kind of power-type magnetics substrate production technology, comprises the steps:
(1-1) compressing: using high tonnage press, soft magnetic ferrite magnetic material to be pressed into the magnetic pole body of column structure；With
When adjustment mould compacting centrage it is ensured that press body is inside and outside, upper and lower consistent in density；
(1-2) sinter: using nitrogen protection, the sintering process of staged homoiothermic；Magnetic pole is stood on load bearing board side by side, interlayer is used
Emergy is made to isolate, using the sintering method being laminated side by side；
(1-3) cut: the magnetic pole proper alignment after sintering carries out being stained with glue and is connected on flat board to be cut；
(1-4) polish: the magnetic sheet after cutting is separated, as in buffing machine, by small product size: polishing material volume=2:1, vibration
Frequency is 2000 times/min, polishing time 10min, carries out to product surface, side and knuckle line polishing；
(1-5) detect: the product after polishing is carried out with electrical property and appearance test test.
Preferably, described step (1-2) comprises the steps:
(2-1) heat up sintering:
First stage: sintered products at a temperature of 300 ± 20 DEG C of furnace temperature, sintering time 25 ± 5min；
Second stage: sintered products at a temperature of 400 ± 20 DEG C of furnace temperature, sintering time 25 ± 5min；
Phase III: sintered products at a temperature of 500 ± 20 DEG C of furnace temperature, sintering time 35 ± 5min；
Fourth stage: sintered products at a temperature of 700 ± 20 DEG C of furnace temperature, sintering time 60 ± 5min；
5th stage: sintered products at a temperature of 900 ± 20 DEG C of furnace temperature, sintering time 90 ± 5min；
6th stage: sintered products at a temperature of 1100 ± 20 DEG C of furnace temperature, sintering time 90 ± 5min；
7th stage: sintered products, at a temperature of 1350 ± 20 DEG C of furnace temperature, sinter and are incubated 90 ± 5min；
(2-2) cooling treatment:
First stage: sintered products, at a temperature of 1000 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
Second stage: sintered products, at a temperature of 800 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
Phase III: sintered products, at a temperature of 700 ± 20 DEG C of furnace temperature, cool down insulation 30 ± 5min；
Fourth stage: sintered products, at a temperature of 600 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
5th stage: sintered products, at a temperature of 400 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
6th stage: sintered products, at a temperature of 200 ± 20 DEG C of furnace temperature, cool down insulation 20 ± 5min；
7th stage: sintered products, at a temperature of 100 ± 20 DEG C of furnace temperature, cool down insulation 20 ± 5min.
Preferably, described step (1-3) comprises the steps:
(3-1) magnetic pole connecting on cutting flat board is stained with arrangement, is sent into and is positioned on the work platformses of cutting machine, carry out to be cut
Cut magnetic pole x-axis, y-axis direction calibration；
(3-2) open cooling water, discharge is 50 liters/min, water temperature is less than 20 DEG C；
(3-3) cutting machine, adjustment cutting spacing are opened, cutting speed is 5mm/min, carries out uniform and automatic cutting, until completing
After shut down；
(3-4) the post piece of well cutting is taken off from saw working bench；The post piece of well cutting is positioned in more than 80 DEG C of water
Soak 5min, take off the cutting sheet after cutting one by one.
Preferably, the glue in described step (1-3) is pva glue.
Preferably, in described step (2-1), the heating rate of furnace temperature is 3-10 DEG C/min.
Preferably, in described step (2-2), the rate of temperature fall of furnace temperature is 5-15 DEG C/min.
After such scheme, the present invention has the advantage that adopting column molding structure, take final separating and cutting process,
Substantially increase product sequence qualification rate and integrated yield, electrical performance indexes and other technical requirements concordance are good；Using simultaneously
The sintering method of row's stacking, is saving sintering space, is reducing sintering cost, improve sintering efficiency, energy efficient same
When, save substantial amounts of manpower moreover it is possible to using night dip electricity, avoiding peak of power consumption, so that the energy is fully used.
Therefore, the invention has the following beneficial effects: improve product sequence qualification rate and integrated yield, electrical property refers to
Mark and other technical requirements concordance are good, and energy efficient is cost-effective.
Specific embodiment
With reference to specific embodiment, the present invention will be further described.
Embodiment is a kind of power-type magnetics substrate production technology, comprises the steps:
Step 100: compressing: using high tonnage press, soft magnetic ferrite magnetic material is pressed into the magnetic pole of column structure
Body；Adjustment mould compacting centrage is it is ensured that press body is inside and outside, upper and lower consistent in density simultaneously；
Step 200: sintering: using nitrogen protection, the sintering process of staged homoiothermic；Magnetic pole is stood on load bearing board side by side, layer
Between with emergy make isolate, using the sintering method being laminated side by side；
Step 210: heat up sintering: the heating rate of its furnace temperature is 3-10 DEG C/min；
First stage: sintered products at a temperature of 300 ± 20 DEG C of furnace temperature, sintering time 25 ± 5min；
Second stage: sintered products at a temperature of 400 ± 20 DEG C of furnace temperature, sintering time 25 ± 5min；
Phase III: sintered products at a temperature of 500 ± 20 DEG C of furnace temperature, sintering time 35 ± 5min；
Fourth stage: sintered products at a temperature of 700 ± 20 DEG C of furnace temperature, sintering time 60 ± 5min；
5th stage: sintered products at a temperature of 900 ± 20 DEG C of furnace temperature, sintering time 90 ± 5min；
6th stage: sintered products at a temperature of 1100 ± 20 DEG C of furnace temperature, sintering time 90 ± 5min；
7th stage: sintered products, at a temperature of 1350 ± 20 DEG C of furnace temperature, sinter and are incubated 90 ± 5min；
Step 220: cooling treatment: the rate of temperature fall of its furnace temperature is 5-15 DEG C/min；
First stage: sintered products, at a temperature of 1000 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
Second stage: sintered products, at a temperature of 800 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
Phase III: sintered products, at a temperature of 700 ± 20 DEG C of furnace temperature, cool down insulation 30 ± 5min；
Fourth stage: sintered products, at a temperature of 600 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
5th stage: sintered products, at a temperature of 400 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
6th stage: sintered products, at a temperature of 200 ± 20 DEG C of furnace temperature, cool down insulation 20 ± 5min；
7th stage: sintered products, at a temperature of 100 ± 20 DEG C of furnace temperature, cool down insulation 20 ± 5min；
Step 300: cutting: the magnetic pole proper alignment after sintering carries out being stained with glue and is connected on flat board to be cut；
Step 310: the magnetic pole connecting on cutting flat board is stained with arrangement, is sent into and is positioned on the work platformses of cutting machine, carry out
Magnetic pole x-axis to be cut, y-axis direction calibration；
Step 320: open cooling water, discharge is 50 liters/min, water temperature is less than 20 DEG C；
Step 330: open cutting machine, adjustment cutting spacing, cutting speed is 5mm/min, carries out uniform and automatic cutting, until complete
Shut down after one-tenth；
Step 340: the post piece of well cutting is taken off from saw working bench；The post piece of well cutting is positioned over more than 80 DEG C of water
Middle immersion 5min, takes off the cutting sheet after cutting one by one；
Step 400: polishing: will cutting separate after magnetic sheet, as in buffing machine, by small product size: polishing material volume=2:1, shake
Dynamic frequency is 2000 times/min, polishing time 10min, carries out to product surface, side and knuckle line polishing；
Step 500: detection: the product after polishing is carried out with electrical property and appearance test test, to meet product skill
Art and prescription.
The present invention is produced by traditional single specification product and is improved to the column consistent with its product specification profile technical requirements
Structure, is controlled by specific sintering process and is sintered, column structure product the most at last, by specific technical matters, press
The final technical requirements thickness of product is cut, and on the premise of ensureing the technical requirements such as its electrical property, completes final products
Production and processing.
Therefore, the invention has the following beneficial effects: improve product sequence qualification rate and integrated yield, electrical property refers to
Mark and other technical requirements concordance are good, and energy efficient is cost-effective.
It should be understood that the present embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
After having read the content of present invention instruction, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (6)
1. a kind of power-type magnetics substrate production technology, is characterized in that, comprise the steps:
(1-1) compressing: using high tonnage press, soft magnetic ferrite magnetic material to be pressed into the magnetic pole body of column structure；With
When adjustment mould compacting centrage it is ensured that press body is inside and outside, upper and lower consistent in density；
(1-2) sinter: using nitrogen protection, the sintering process of staged homoiothermic；Magnetic pole is stood on load bearing board side by side, interlayer is used
Emergy is made to isolate, using the sintering method being laminated side by side；
(1-3) cut: the magnetic pole proper alignment after sintering carries out being stained with glue and is connected on flat board to be cut；
(1-4) polish: the magnetic sheet after cutting is separated, as in buffing machine, by small product size: polishing material volume=2:1, vibration
Frequency is 2000 times/min, polishing time 10min, carries out to product surface, side and knuckle line polishing；
(1-5) detect: the product after polishing is carried out with electrical property and appearance test test.
2. a kind of power-type magnetics substrate production technology according to claim 1, is characterized in that, described step (1-2) includes
Following steps:
(2-1) heat up sintering:
First stage: sintered products at a temperature of 300 ± 20 DEG C of furnace temperature, sintering time 25 ± 5min；
Second stage: sintered products at a temperature of 400 ± 20 DEG C of furnace temperature, sintering time 25 ± 5min；
Phase III: sintered products at a temperature of 500 ± 20 DEG C of furnace temperature, sintering time 35 ± 5min；
Fourth stage: sintered products at a temperature of 700 ± 20 DEG C of furnace temperature, sintering time 60 ± 5min；
5th stage: sintered products at a temperature of 900 ± 20 DEG C of furnace temperature, sintering time 90 ± 5min；
6th stage: sintered products at a temperature of 1100 ± 20 DEG C of furnace temperature, sintering time 90 ± 5min；
7th stage: sintered products, at a temperature of 1350 ± 20 DEG C of furnace temperature, sinter and are incubated 90 ± 5min；
(2-2) cooling treatment:
First stage: sintered products, at a temperature of 1000 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
Second stage: sintered products, at a temperature of 800 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
Phase III: sintered products, at a temperature of 700 ± 20 DEG C of furnace temperature, cool down insulation 30 ± 5min；
Fourth stage: sintered products, at a temperature of 600 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
5th stage: sintered products, at a temperature of 400 ± 20 DEG C of furnace temperature, cool down insulation 40 ± 5min；
6th stage: sintered products, at a temperature of 200 ± 20 DEG C of furnace temperature, cool down insulation 20 ± 5min；
7th stage: sintered products, at a temperature of 100 ± 20 DEG C of furnace temperature, cool down insulation 20 ± 5min.
3. a kind of power-type magnetics substrate production technology according to claim 1, is characterized in that, described step (1-3) includes
Following steps:
(3-1) magnetic pole connecting on cutting flat board is stained with arrangement, is sent into and is positioned on the work platformses of cutting machine, carry out to be cut
Cut magnetic pole x-axis, y-axis direction calibration；
(3-2) open cooling water, discharge is 50 liters/min, water temperature is less than 20 DEG C；
(3-3) cutting machine, adjustment cutting spacing are opened, cutting speed is 5mm/min, carries out uniform and automatic cutting, until completing
After shut down；
(3-4) the post piece of well cutting is taken off from saw working bench；The post piece of well cutting is positioned in more than 80 DEG C of water
Soak 5min, take off the cutting sheet after cutting one by one.
4. a kind of power-type magnetics substrate production technology according to claim 1, is characterized in that, in described step (1-3)
Glue is pva glue.
5. a kind of power-type magnetics substrate production technology according to claim 2, is characterized in that, in described step (2-1), stove
The heating rate of temperature is 3-10 DEG C/min.
6. a kind of power-type magnetics substrate production technology according to claim 2, is characterized in that, in described step (2-2), stove
The rate of temperature fall of temperature is 5-15 DEG C/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776608.2A CN106365642B (en) | 2016-08-31 | 2016-08-31 | A kind of power-type magnetics substrate production technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610776608.2A CN106365642B (en) | 2016-08-31 | 2016-08-31 | A kind of power-type magnetics substrate production technology |
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| Publication Number | Publication Date |
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| CN106365642A true CN106365642A (en) | 2017-02-01 |
| CN106365642B CN106365642B (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086890A (en) * | 2020-08-25 | 2022-02-25 | 成都百施特金刚石钻头有限公司 | Sintering method of double-core matrix drill bit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050621A (en) * | 2010-11-04 | 2011-05-11 | 柏玉新 | Stepped equilibrium-atmosphere sintering process for soft-magnetic ferrite nitrogen kiln |
| CN201970383U (en) * | 2010-12-24 | 2011-09-14 | 柏玉新 | Improved soft ferrite molding processing die |
| CN203649390U (en) * | 2013-10-18 | 2014-06-18 | 上海华源磁业有限公司 | Anti-deformation mould of E-shaped soft magnetic ferrite core |
| CN204596584U (en) * | 2015-05-07 | 2015-08-26 | 湖北华磁电子科技有限公司 | A kind of magnetic ferrite magnetic core is folded burns sheet |
-
2016
- 2016-08-31 CN CN201610776608.2A patent/CN106365642B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102050621A (en) * | 2010-11-04 | 2011-05-11 | 柏玉新 | Stepped equilibrium-atmosphere sintering process for soft-magnetic ferrite nitrogen kiln |
| CN201970383U (en) * | 2010-12-24 | 2011-09-14 | 柏玉新 | Improved soft ferrite molding processing die |
| CN203649390U (en) * | 2013-10-18 | 2014-06-18 | 上海华源磁业有限公司 | Anti-deformation mould of E-shaped soft magnetic ferrite core |
| CN204596584U (en) * | 2015-05-07 | 2015-08-26 | 湖北华磁电子科技有限公司 | A kind of magnetic ferrite magnetic core is folded burns sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114086890A (en) * | 2020-08-25 | 2022-02-25 | 成都百施特金刚石钻头有限公司 | Sintering method of double-core matrix drill bit |
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