CN106365642B - A kind of power-type magnetics substrate production technology - Google Patents
A kind of power-type magnetics substrate production technology Download PDFInfo
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- CN106365642B CN106365642B CN201610776608.2A CN201610776608A CN106365642B CN 106365642 B CN106365642 B CN 106365642B CN 201610776608 A CN201610776608 A CN 201610776608A CN 106365642 B CN106365642 B CN 106365642B
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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
-
- 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
-
- 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
Abstract
The invention discloses a kind of power-type magnetics substrate production technologies, including compression moulding；Sintering: nitrogen protection, the sintering process of staged temperature adjustment being laminated side by side are used；Cutting；Polishing；Detect five steps.The characteristics of present invention, which has, improves product sequence qualification rate and integrated yield, and electrical performance indexes and other technical requirements consistency are good, energy saving, saves cost.
Description
Technical field
The present invention relates to electronic device preparation technical fields, more particularly, to a kind of raising product sequence qualification rate and synthesis
Yield rate, electrical performance indexes and other technical requirements consistency are good, energy saving, save the power-type magnetics substrate production work of cost
Skill.
Background technique
Soft magnetic ferrite magnetic material, application range 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 field, will substitute inconvenience brought by original wired charging, it is dangerous,
A series of problems, such as not energy-efficient.Since the power-type magnetics substrate precision prescribed of wireless charging is high, requirement on electric performance range is small,
Surface area is in 300 mm2More than, and thickness is respectively less than 1.5mm hereinafter, there are difficult formings, 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.
Summary of the invention
Goal of the invention of the invention is to overcome and there is molding using conventional magnetics substrate production technology in the prior art
Difficult, the problems such as sintering deformation is serious, product are extremely difficult to its performance and required precision, and forming amount production difficulty is greatly not
Foot provides a kind of raising product sequence qualification rate and integrated yield, and electrical performance indexes and other technical requirements consistency are good,
Energy saving saves the power-type magnetics substrate production technology of cost.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of power-type magnetics substrate production technology, includes the following steps:
(1-1) compression moulding: soft magnetic ferrite magnetic material is pressed into the magnetic pole of column structure using high tonnage press
Body；Mold compacting center line is adjusted simultaneously, it is ensured that press body is inside and outside, upper and lower consistent in density；
(1-2) sintering: nitrogen protection, the sintering process of staged temperature adjustment are used；Magnetic pole is stood on load bearing board side by side, layer
Between with emergy work be isolated, included the following steps: using the sintering method being laminated side by side
(1-2-1) heating sintering:
First stage: sintered products are at a temperature of 300 ± 20 DEG C of furnace temperature, 25 ± 5min of sintering time；
Second stage: sintered products are at a temperature of 400 ± 20 DEG C of furnace temperature, 25 ± 5min of sintering time；
Phase III: sintered products are at a temperature of 500 ± 20 DEG C of furnace temperature, 35 ± 5min of sintering time；
Fourth stage: sintered products are at a temperature of 700 ± 20 DEG C of furnace temperature, 60 ± 5min of sintering time；
5th stage: sintered products are at a temperature of 900 ± 20 DEG C of furnace temperature, 90 ± 5min of sintering time；
6th stage: sintered products are at a temperature of 1100 ± 20 DEG C of furnace temperature, 90 ± 5min of sintering time；
7th stage: sintered products are sintered at a temperature of 1350 ± 20 DEG C of furnace temperature and keep the temperature 90 ± 5min；
(1-2-2) cooling treatment:
First stage: sintered products are at a temperature of 1000 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
Second stage: sintered products are at a temperature of 800 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
Phase III: sintered products are at a temperature of 700 ± 20 DEG C of furnace temperature, 30 ± 5min of cooling heat preservation；
Fourth stage: sintered products are at a temperature of 600 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
5th stage: sintered products are at a temperature of 400 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
6th stage: sintered products are at a temperature of 200 ± 20 DEG C of furnace temperature, 20 ± 5min of cooling heat preservation；
7th stage: sintered products are at a temperature of 100 ± 20 DEG C of furnace temperature, 20 ± 5min of cooling heat preservation.
(1-3) cutting: by sintered magnetic pole proper alignment, be stained with glue and be connected on plate to be cut；
(1-4) polishing: by the magnetic sheet after cutting separation, as in polishing machine, by small product size: polishing material volume=2:1,
Vibration frequency is 2000 times/min, polishing time 10min, is carried out to product surface, side and knuckle line polishing treatment；
(1-5) detection: electrical property is carried out to the product after polishing treatment and appearance test is tested.
Preferably, the step (1-3) includes the following steps:
The magnetic pole connected on cutting plate is stained in arrangement by (2-1), and feeding is placed on the workbench of cutting machine, is carried out
Magnetic pole X-axis to be cut, Y direction calibration；
(2-2) opens cooling water, and water flow is 50 liters/min, and water temperature is lower than 20 DEG C；
(2-3) opens cutting machine, adjustment cutting spacing, and cutting speed 5mm/min carries out uniform and automatic cutting, until
It shuts down after the completion；
(2-4) removes the column piece of well cutting from saw working bench；The column piece of well cutting is placed in 80 DEG C or more
5min is impregnated in water, the cutting sheet after removing cutting one by one.
Preferably, the glue in the step (1-3) is PVA glue.
Preferably, the heating rate of furnace temperature is 3-10 DEG C/min in the step (1-2-1).
Preferably, the rate of temperature fall of furnace temperature is 5-15 DEG C/min in the step (1-2-2).
After adopting the above scheme, the present invention has the advantage that using column molding structure, final separating and cutting process is taken,
Product sequence qualification rate and integrated yield are substantially increased, electrical performance indexes and other technical requirements consistency are good；Using simultaneously
The sintering method for arranging stacking, is saving sintering space, is reducing sintering cost, improves sintering efficiency, energy saving it is same
When, save a large amount of manpower, moreover it is possible to using night dip electricity, avoid peak of power consumption, the energy is made to be fully used.
Therefore, the invention has the following beneficial effects: product sequence qualification rate and integrated yield is improved, electrical property refers to
Mark and other technical requirements consistency are good, energy saving, save cost.
Specific embodiment
The present invention will be further described With reference to embodiment.
Embodiment is a kind of power-type magnetics substrate production technology, is included the following steps:
Step 100: soft magnetic ferrite magnetic material compression moulding: being pressed into the magnetic of column structure using high tonnage press
Cylinder；Mold compacting center line is adjusted simultaneously, it is ensured that press body is inside and outside, upper and lower consistent in density；
Step 200: sintering: using nitrogen protection, the sintering process of staged temperature adjustment；Magnetic pole is stood on into load bearing board side by side
On, interlayer emergy work is isolated, using the sintering method being laminated side by side；
Step 210: heating sintering: the heating rate of its furnace temperature is 3-10 DEG C/min；
First stage: sintered products are at a temperature of 300 ± 20 DEG C of furnace temperature, 25 ± 5min of sintering time；
Second stage: sintered products are at a temperature of 400 ± 20 DEG C of furnace temperature, 25 ± 5min of sintering time；
Phase III: sintered products are at a temperature of 500 ± 20 DEG C of furnace temperature, 35 ± 5min of sintering time；
Fourth stage: sintered products are at a temperature of 700 ± 20 DEG C of furnace temperature, 60 ± 5min of sintering time；
5th stage: sintered products are at a temperature of 900 ± 20 DEG C of furnace temperature, 90 ± 5min of sintering time；
6th stage: sintered products are at a temperature of 1100 ± 20 DEG C of furnace temperature, 90 ± 5min of sintering time；
7th stage: sintered products are sintered at a temperature of 1350 ± 20 DEG C of furnace temperature and keep the temperature 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 are at a temperature of 1000 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
Second stage: sintered products are at a temperature of 800 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
Phase III: sintered products are at a temperature of 700 ± 20 DEG C of furnace temperature, 30 ± 5min of cooling heat preservation；
Fourth stage: sintered products are at a temperature of 600 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
5th stage: sintered products are at a temperature of 400 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
6th stage: sintered products are at a temperature of 200 ± 20 DEG C of furnace temperature, 20 ± 5min of cooling heat preservation；
7th stage: sintered products are at a temperature of 100 ± 20 DEG C of furnace temperature, 20 ± 5min of cooling heat preservation；
Step 300: cutting: by sintered magnetic pole proper alignment, be stained with glue and be connected on plate to be cut；
Step 310: arrangement is stained with to the magnetic pole connected on cutting plate, feeding is placed on the workbench of cutting machine,
Carry out magnetic pole X-axis to be cut, Y direction calibration；
Step 320: opening cooling water, water flow is 50 liters/min, and water temperature is lower than 20 DEG C；
Step 330: opening cutting machine, adjustment cutting spacing, cutting speed 5mm/min carries out uniform and automatic cutting, directly
To shutting down after the completion；
Step 340: the column piece of well cutting is removed from saw working bench；The column piece of well cutting is placed in 80 DEG C or more
Water in impregnate 5min, remove one by one cutting after cutting sheet；
Step 400: polishing: by the magnetic sheet after cutting separation, as in polishing machine, by small product size: polishing material volume=2:
1, vibration frequency is 2000 times/min, polishing time 10min, is carried out to product surface, side and knuckle line polishing treatment；
Step 500: detection: electrical property being carried out to the product after polishing treatment and appearance test is tested, is produced with meeting
Product technology and quality requirement.
The present invention is improved to and its consistent column of product specification shape technical requirements by the single specification product production of tradition
Structure is sintered by the control of specific sintering process, finally presses column structure product by specific technical matters
The final technical requirements thickness of product is cut, and under the premise of guaranteeing the technical requirements such as its electrical property, completes final products
Production and processing.
Therefore, the invention has the following beneficial effects: product sequence qualification rate and integrated yield is improved, electrical property refers to
Mark and other technical requirements consistency are good, energy saving, save cost.
It should be understood that this embodiment is only used to illustrate the invention but not to limit the scope of the invention.In addition, it should also be understood that,
After having read the content of the invention lectured, those skilled in the art can make various modifications or changes to the present invention, these etc.
Valence form is also fallen within the scope of the appended claims of the present application.
Claims (5)
1. a kind of power-type magnetics substrate production technology, characterized in that include the following steps:
(1-1) compression moulding: soft magnetic ferrite magnetic material is pressed into the magnetic pole body of column structure using high tonnage press；Together
When adjustment mold suppress center line, it is ensured that press body is inside and outside, upper and lower consistent in density；
(1-2) sintering: nitrogen protection, the sintering process of staged temperature adjustment are used；Magnetic pole is stood on load bearing board side by side, interlayer is used
Emergy work is isolated, using the sintering method being laminated side by side；
(1-2-1) heating sintering:
First stage: sintered products are at a temperature of 300 ± 20 DEG C of furnace temperature, 25 ± 5min of sintering time；
Second stage: sintered products are at a temperature of 400 ± 20 DEG C of furnace temperature, 25 ± 5min of sintering time；
Phase III: sintered products are at a temperature of 500 ± 20 DEG C of furnace temperature, 35 ± 5min of sintering time；
Fourth stage: sintered products are at a temperature of 700 ± 20 DEG C of furnace temperature, 60 ± 5min of sintering time；
5th stage: sintered products are at a temperature of 900 ± 20 DEG C of furnace temperature, 90 ± 5min of sintering time；
6th stage: sintered products are at a temperature of 1100 ± 20 DEG C of furnace temperature, 90 ± 5min of sintering time；
7th stage: sintered products are sintered at a temperature of 1350 ± 20 DEG C of furnace temperature and keep the temperature 90 ± 5min；
(1-2-2) cooling treatment:
First stage: sintered products are at a temperature of 1000 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
Second stage: sintered products are at a temperature of 800 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
Phase III: sintered products are at a temperature of 700 ± 20 DEG C of furnace temperature, 30 ± 5min of cooling heat preservation；
Fourth stage: sintered products are at a temperature of 600 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
5th stage: sintered products are at a temperature of 400 ± 20 DEG C of furnace temperature, 40 ± 5min of cooling heat preservation；
6th stage: sintered products are at a temperature of 200 ± 20 DEG C of furnace temperature, 20 ± 5min of cooling heat preservation；
7th stage: sintered products are at a temperature of 100 ± 20 DEG C of furnace temperature, 20 ± 5min of cooling heat preservation；
(1-3) cutting: by sintered magnetic pole proper alignment, be stained with glue and be connected on plate to be cut；
(1-4) polishing: by the magnetic sheet after cutting separation, as in polishing machine, by small product size: polishing material volume=2:1 is vibrated
Frequency is 2000 times/min, polishing time 10min, is carried out to product surface, side and knuckle line polishing treatment；
(1-5) detection: electrical property is carried out to the product after polishing treatment and appearance test is tested.
2. a kind of power-type magnetics substrate production technology according to claim 1, characterized in that the step (1-3) includes
Following steps:
The magnetic pole connected on cutting plate is stained in arrangement by (2-1), and feeding is placed on the workbench of cutting machine, is carried out to be cut
Cut magnetic pole X-axis, Y direction calibration；
(2-2) opens cooling water, and water flow is 50 liters/min, and water temperature is lower than 20 DEG C；
(2-3) opens cutting machine, and adjustment cutting spacing, cutting speed 5mm/min carries out uniform and automatic cutting, until completing
After shut down；
(2-4) removes the column piece of well cutting from saw working bench；The column piece of well cutting is placed in 80 DEG C or more of water
5min is impregnated, the cutting sheet after removing cutting one by one.
3. a kind of power-type magnetics substrate production technology according to claim 1, characterized in that in the step (1-3)
Glue is PVA glue.
4. a kind of power-type magnetics substrate production technology according to claim 1, characterized in that in the step (1-2-1),
The heating rate of furnace temperature is 3-10 DEG C/min.
5. a kind of power-type magnetics substrate production technology according to claim 1, characterized in that in the step (1-2-2),
The rate of temperature fall of furnace temperature is 5-15 DEG C/min.
Priority Applications (1)
| 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 CN106365642A (en) | 2017-02-01 |
| CN106365642B true CN106365642B (en) | 2019-01-22 |
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| 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 |
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