CN109940943A - A kind of magnetic screen function forceful electric power sensor ferrite housing material and preparation method thereof - Google Patents
A kind of magnetic screen function forceful electric power sensor ferrite housing material and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of magnetic screen function forceful electric power sensor ferrite housing materials, using the middle layer for suppressing formation after the mixing of bamboo charcoal, expanded graphite and nickel-zinc ferrite expanded graphite, the mass ratio of the gross mass and nickel-zinc ferrite expanded graphite of bamboo charcoal and expanded graphite is 3:(1~4)；Substrate is fitted with inside and outside middle layer, substrate is obtained by polycarbonate resin, acrylic resin, ABS resin, sodium metasilicate, silicon carbide mixing compacting；The outside of substrate is equipped with wearing layer, and wearing layer is the structure sheaf that formation is sprayed after ceramic particle, powdered steel, copper powders, bamboo fibre and titania powder mix.In the interlayer structure, nickel-zinc ferrite expanded graphite has good suction wave energy, preferably shields noise when electromagnetic interference and inner body operation, reaches muting function.In substrate, various materials rational proportion combination, complementary win-win, improving performance fills up defect.
Description
Technical field
The present invention relates to a kind of magnetic screen function forceful electric power sensor ferrite housing materials and preparation method thereof, belong to inductance
Device technical field.
Background technique
Heart of the integrated attachment magnetic screen power inductor of magnetic as switch power module system, be current flat panel show,
Switch power module urgently needed for the great new industry such as green illumination, automotive electronics, new energy is to realize small-sized efficient, drop
Low energy consumption and the critical electronic information component for improving reliability.Currently, the product key technology of preparing is monopolized by foreign countries always,
The country can only produce low-end product.For the production domesticization for realizing the integrated attachment magnetic screen power inductor mid- to high-end product of magnetic, carry out
The research of ferrite key magnetic material formula technique, ferrite housing magnetic core key Study on Preparation and the integrated attachment magnetic of magnetic
Power inductor key Study on Preparation Technology is shielded, the design of ferrite housing material prescription, metal magnetic powder core insulated with material are broken through
Coating modification, ferrite core Deformation control and high performance sintered, the integrated attachment magnetic screen power inductor structure optimization of magnetic
The key problem in technology such as design and realization develop the integrated attachment magnetic screen power inductor of magnetic with independent intellectual property rights, straight
It flows superimposed characteristics and frequency stability is more than the current similar Surface Mount magnetic screen power of state-of-the-art U.S. Vicor company in the world
Inductance, performance indicator are reached the international leading level.Project implementation will become the bright spot of business economic growth, and enhancing enterprise is domestic
The competitiveness in outer market breaks through China's electronic information key magnetic elements and seizes by the throat technology, promotes China's soft magnet oxygen
The technology upgrading and industry restructuring of body and inductor industry.
Summary of the invention
The purpose of the present invention is to provide a kind of magnetic screen function forceful electric power sensor ferrite housing material and its preparation sides
Method, it is convenient to use as needed preferably to improve its service performance.
To achieve the goals above, technical scheme is as follows.
A kind of magnetic screen function forceful electric power sensor ferrite housing material, using bamboo charcoal, expanded graphite and nickel-zinc ferrite
The middle layer of formation, the matter of the gross mass and nickel-zinc ferrite expanded graphite of bamboo charcoal and expanded graphite are suppressed after expanded graphite mixing
Amount is than being 3:(1~4)；Substrate is fitted with inside and outside middle layer, substrate is by polycarbonate resin, acrylic resin, ABS tree
Rouge, sodium metasilicate, silicon carbide mixing compacting obtain；The outside of substrate is equipped with wearing layer, and wearing layer is ceramic particle, powdered steel, copper
The structure sheaf of formation is sprayed after powder, bamboo fibre and titania powder mixing.
Further, substrate is specifically mixed by the raw material of following mass component: 10~12 parts of polycarbonate resin, poly- third
8~12 parts of olefine resin, 10~15 parts of ABS resin, 8~10 parts of sodium metasilicate, 4~6 parts of silicon carbide.
Further, the ceramic particle is far-infrared ceramic particle, and partial size is 0.05~0.2 millimeter；The titanium dioxide
Titanium is nano-titanium dioxide, and partial size is 400~1800 nanometers.
Further, the middle layer is prepared by the following method to obtain: the bamboo charcoal is ground to be formed partial size 0.5~
0.8 millimeter of bamboo charcoal particle；The expanded graphite is ground to form 0.5~0.8 millimeter of partial size of expanded graphite particles；It will be described
Nickel-zinc ferrite expanded graphite is ground into the nickel-zinc ferrite expanded graphite powder that partial size is 400~1800 nanometers；To the bamboo
Charcoal particle and expanded graphite particles carry out expanding treatment respectively and obtain macropore bamboo charcoal particle and macropore that aperture is 500 nanometers or more
Expanded graphite particles improve macropore bamboo charcoal particle and macropore expanded graphite particles to the soakage of nickel-zinc ferrite expanded graphite；
By the macropore bamboo charcoal particle, macropore expanded graphite particles and nickel-zinc ferrite expanded graphite powder be placed in mixing arrangement into
Row is mixed to get intermediate layer material.
Further, the substrate is prepared by the following method to obtain: by the polycarbonate resin, acrylic resin, ABS
After resin, sodium metasilicate, silicon carbide mixing hot melt, the plastic wire for being 0.5~3 millimeter at diameter is lifted；The drawing of wire drawing raising plastics
Stretch performance.It takes 10~20 microns of diameter of carbon fiber wire and the plastic wire to gather bunchy according to the quantity ratio of 1:3~5 and obtains silk
Beam；The toughness and intensity of carbon fiber are high, and the toughness and intensity that tow can be improved as the beam heart in carbon fiber wire are by the tow
Laterally mat formation and to form first layer, vertically mat formation to form the second layer again, repeat the operation of the first layer and the second layer, until stacking
To target thickness, then hot pressing obtains the substrate.
Further, the wearing layer is prepared by the following method to obtain: selecting partial size for 0.05~0.2 millimeter of ceramics
Powdered steel that particle, partial size are 500~2000 nanometers, the copper powders that partial size is 500~2000 nanometers, partial size are 400~1800
The titania powder of nanometer；Expanding treatment is carried out to the ceramic particle and obtains the macropore ceramics that aperture is 500 nanometers or more
Particle；The powdered steel, the copper powders and the titania powder are mixed to get conjunction according to the mass ratio of 3:1~0.2
Bronze end；The macropore ceramic particle and the alloy powder are placed in and carry out being mixed to get mixing material in mixing arrangement；It will
The mixing material, bamboo fibre are sprayed on substrate after mixing with epoxy resin and obtain wearing layer.
Further, the expanding treatment is the following steps are included: by bamboo charcoal particle or expanded graphite particles at 55~75 DEG C
Lower drying is pulled out after then impregnating 0.8~2 hour in the hydrogen peroxide that the concentration of volume is 30~32% to constant weight；0~3
At DEG C, by the particle pulled out volume concentration be 95~100% alcohol in impregnate 10~filter out particle after twenty minutes；It will filter
Using 120~130 DEG C of high-temperature steams flushing that pressure is 1.5~2mpa 10~15 minutes after particle natural air drying out, then
It is obtained by drying to the macropore bamboo charcoal particle and expanded graphite particles at 60~65 DEG C；Ceramic particle is done at 100~105 DEG C
It is dry to constant weight, pulled out after then being impregnated 1~1.5 hour in the hydrogen peroxide that the concentration of volume is 55~60%；At 0~3 DEG C,
Ceramic particle is filtered out after the ceramic particle pulled out is impregnated 20~25 minutes in the alcohol that the concentration of volume is 95~100%；
It is rinsed 15~20 minutes after ceramic particle natural air drying will be filtered out using 180~200 DEG C of high-temperature steams that pressure is 5~6mpa,
Then obtained by drying to the macropore ceramic particle at 100~105 DEG C.
Invention has the beneficial effects that: shell of the invention is by ceramic particle, bamboo charcoal particle and expanded graphite particles
As carrier, nickel-zinc ferrite expanded graphite powder, alloy powder, titania powder are adsorbed on carrier, then sprayed again
Painting forms wearing layer.In the interlayer structure, nickel-zinc ferrite expanded graphite has good suction wave energy, preferably shielding electricity
Noise when magnetic disturbance and inner body are run, reaches muting function.In substrate, the combination of various materials rational proportion is complementary
Win-win, improving performance fill up defect.In wearing layer, ceramic particle wear-resisting property is good, and porous, by steel and copper Nano grade
Powder is imported into the micropore of ceramic particle, is not only enriched ceramic particle, and can bring metal-like and weight sense, is mentioned simultaneously
High-wear resistance.And bamboo fibre can be avoided particle and powder excessively disperses.The sterilization that titanium dioxide can enhance wearing layer removes
Smelly ability.Titania powder, which is hidden in micropore can be avoided, simultaneously is excessively easy to fall, so that better effect is lasting.
Specific embodiment
A specific embodiment of the invention is described below with reference to embodiment, to better understand the present invention.
Embodiment 1
Magnetic screen function forceful electric power sensor ferrite housing material in the present embodiment, using bamboo charcoal, expanded graphite and nickel
The middle layer of formation is suppressed after the mixing of Zn ferrite expanded graphite, the gross mass and nickel-zinc ferrite of bamboo charcoal and expanded graphite expand
The mass ratio of graphite is 3:1.In the interlayer structure, nickel-zinc ferrite expanded graphite has good suction wave energy, preferably
Noise when electromagnetic interference and inner body operation is shielded, muting function is reached.Substrate is fitted with inside and outside middle layer,
Substrate is obtained by polycarbonate resin, acrylic resin, ABS resin, sodium metasilicate, silicon carbide mixing compacting；The outside of substrate is equipped with
Wearing layer, wearing layer are that spraying is formed after ceramic particle, powdered steel, copper powders, bamboo fibre and titania powder mix
Structure sheaf.And ceramic particle wear-resisting property is good, and porous, and the powder of steel and copper Nano grade is imported into the micro- of ceramic particle
Kong Zhong not only enriches ceramic particle, and can bring metal-like and weight sense, while improving wear-resisting property.And bamboo fibre energy
Particle and powder is enough avoided excessively to disperse.Titanium dioxide can enhance the deodorization and sterilization ability of wearing layer.Titanium dioxide powder simultaneously
End is hidden in micropore can be avoided and is excessively easy to fall, so that better effect is lasting.
Substrate is specifically mixed by the raw material of following mass component: 10 parts of polycarbonate resin, 8 parts of acrylic resin, ABS
10 parts of resin, 8 parts of sodium metasilicate, 4 parts of silicon carbide, the combination of various materials rational proportion, complementary win-win, improving performance fill up defect.
The ceramic particle is far-infrared ceramic particle, and partial size is 0.05 millimeter；The titanium dioxide is nano-titanium dioxide, and partial size is
400 nanometers.
The middle layer is prepared by the following method to obtain: the bamboo charcoal being ground to form 0.5 millimeter of partial size of bamboo charcoal
Grain；The expanded graphite is ground to form 0.5 millimeter of partial size of expanded graphite particles；The nickel-zinc ferrite expanded graphite is ground
Wear into the nickel-zinc ferrite expanded graphite powder that partial size is 400 nanometers；To the bamboo charcoal particle and expanded graphite particles respectively into
Row expanding treatment obtains macropore bamboo charcoal particle and the macropore expanded graphite particles that aperture is 500 nanometers or more, improves macropore bamboo charcoal
The soakage of particle and macropore expanded graphite particles to nickel-zinc ferrite expanded graphite；The macropore bamboo charcoal particle, macropore is swollen
Swollen graphite particle and nickel-zinc ferrite expanded graphite powder, which are placed in, to be carried out being mixed to get intermediate layer material in mixing arrangement.
The substrate is prepared by the following method to obtain: by the polycarbonate resin, acrylic resin, ABS resin, silicic acid
After sodium, silicon carbide mixing hot melt, the plastic wire for being 0.5 millimeter at diameter is lifted；The tensile property of wire drawing raising plastics.Take diameter
10 microns of carbon fiber wire and the plastic wire gather bunchy according to the quantity ratio of 1:3 and obtain tow；The toughness of carbon fiber and strong
Spend it is high, carbon fiber wire as the beam heart can be improved the toughness of tow and intensity laterally mats formation the tow to be formed first layer,
Vertically mat formation to form the second layer again, repeats the operation of the first layer and the second layer, until being stacked to target thickness, then hot pressing
Obtain the substrate.
The wearing layer is prepared by the following method to obtain: selecting ceramic particle, partial size 500 of the partial size for 0.05 millimeter
Powdered steel, the copper powders that partial size is 500 nanometers, the titania powder that partial size is 400 nanometers of nanometer；To the ceramic particle
It carries out expanding treatment and obtains the macropore ceramic particle that aperture is 500 nanometers or more；By the powdered steel, copper powders and described
Titania powder is mixed to get alloy powder according to the mass ratio of 3:1；By the macropore ceramic particle and the alloy powder
It is placed in and carries out being mixed to get mixing material in mixing arrangement；It is sprayed after the mixing material, bamboo fibre are mixed with epoxy resin
Wearing layer is obtained on substrate.
The expanding treatment the following steps are included: bamboo charcoal particle or expanded graphite particles are dried at 55 DEG C to constant weight,
Then it is pulled out after being impregnated 0.8 hour in the hydrogen peroxide that the concentration of volume is 30%；At 0 DEG C, by the particle pulled out in volume
Concentration be 95% alcohol in impregnate and filter out particle after ten minutes；To be using pressure after the particle natural air drying that filtered out
120 DEG C of high-temperature steams of 1.5mpa rinse 10 minutes, then obtained by drying to the macropore bamboo charcoal particle and expansion stone at 60 DEG C
Black particle；Ceramic particle is dried to constant weight at 100 DEG C, it is small that 1 is then impregnated in the hydrogen peroxide that the concentration of volume is 55%
When after pull out；At 0 DEG C, the ceramic particle pulled out is impregnated in the alcohol that the concentration of volume is 95% and filters out pottery after twenty minutes
Porcelain particle；It is rinsed 15 minutes after ceramic particle natural air drying will be filtered out using 180 DEG C of high-temperature steams that pressure is 5mpa, is then existed
100 DEG C obtained by drying to the macropore ceramic particle.
Embodiment 2
Magnetic screen function forceful electric power sensor ferrite housing material in the present embodiment, using bamboo charcoal, expanded graphite and nickel
The middle layer of formation is suppressed after the mixing of Zn ferrite expanded graphite, the gross mass and nickel-zinc ferrite of bamboo charcoal and expanded graphite expand
The mass ratio of graphite is 3:2.In the interlayer structure, nickel-zinc ferrite expanded graphite has good suction wave energy, preferably
Noise when electromagnetic interference and inner body operation is shielded, muting function is reached.Substrate is fitted with inside and outside middle layer,
Substrate is obtained by polycarbonate resin, acrylic resin, ABS resin, sodium metasilicate, silicon carbide mixing compacting；The outside of substrate is equipped with
Wearing layer, wearing layer are that spraying is formed after ceramic particle, powdered steel, copper powders, bamboo fibre and titania powder mix
Structure sheaf.And ceramic particle wear-resisting property is good, and porous, and the powder of steel and copper Nano grade is imported into the micro- of ceramic particle
Kong Zhong not only enriches ceramic particle, and can bring metal-like and weight sense, while improving wear-resisting property.And bamboo fibre energy
Particle and powder is enough avoided excessively to disperse.Titanium dioxide can enhance the deodorization and sterilization ability of wearing layer.Titanium dioxide powder simultaneously
End is hidden in micropore can be avoided and is excessively easy to fall, so that better effect is lasting.
Substrate is specifically mixed by the raw material of following mass component: 12 parts of polycarbonate resin, 10 parts of acrylic resin,
13 parts of ABS resin, 9 parts of sodium metasilicate, 5 parts of silicon carbide, the combination of various materials rational proportion, complementary win-win, improving performance fill up scarce
It falls into.The ceramic particle is far-infrared ceramic particle, and partial size is 0.1 millimeter；The titanium dioxide is nano-titanium dioxide, partial size
It is 1100 nanometers.
The middle layer is prepared by the following method to obtain: the bamboo charcoal being ground to form 0.6 millimeter of partial size of bamboo charcoal
Grain；The expanded graphite is ground to form 0.7 millimeter of partial size of expanded graphite particles；The nickel-zinc ferrite expanded graphite is ground
Wear into the nickel-zinc ferrite expanded graphite powder that partial size is 1100 nanometers；To the bamboo charcoal particle and expanded graphite particles respectively into
Row expanding treatment obtains macropore bamboo charcoal particle and the macropore expanded graphite particles that aperture is 500 nanometers or more, improves macropore bamboo charcoal
The soakage of particle and macropore expanded graphite particles to nickel-zinc ferrite expanded graphite；The macropore bamboo charcoal particle, macropore is swollen
Swollen graphite particle and nickel-zinc ferrite expanded graphite powder, which are placed in, to be carried out being mixed to get intermediate layer material in mixing arrangement.
The substrate is prepared by the following method to obtain: by the polycarbonate resin, acrylic resin, ABS resin, silicic acid
After sodium, silicon carbide mixing hot melt, the plastic wire for being 2 millimeters at diameter is lifted；The tensile property of wire drawing raising plastics.Take diameter 15
The carbon fiber wire and the plastic wire of micron obtain tow than set bunchy according to the quantity of 1:4；The toughness and intensity of carbon fiber
High, carbon fiber wire, which as the beam heart can be improved the toughness of tow, and intensity laterally mats formation the tow to form first layer, again
Vertically mat formation to form the second layer, repeats the operation of the first layer and the second layer, until being stacked to target thickness, then hot pressing is
Obtain the substrate.
The wearing layer is prepared by the following method to obtain: selecting ceramic particle, partial size 1300 of the partial size for 0.1 millimeter
Powdered steel, the copper powders that partial size is 1200 nanometers, the titania powder that partial size is 1100 nanometers of nanometer；To the ceramics
Grain carries out expanding treatment and obtains the macropore ceramic particle that aperture is 500 nanometers or more；By the powdered steel, the copper powders and institute
It states titania powder and is mixed to get alloy powder according to the mass ratio of 3:0.4；By the macropore ceramic particle and the alloy
Powder, which is placed in, to carry out being mixed to get mixing material in mixing arrangement；After the mixing material, bamboo fibre are mixed with epoxy resin
It is sprayed on substrate and obtains wearing layer.
The expanding treatment the following steps are included: bamboo charcoal particle or expanded graphite particles are dried at 65 DEG C to constant weight,
Then it is pulled out after being impregnated 1.5 hours in the hydrogen peroxide that the concentration of volume is 31%；At 2 DEG C, by the particle pulled out in volume
Concentration be 95% alcohol in impregnate 15 minutes after filter out particle；To be using pressure after the particle natural air drying that filtered out
125 DEG C of high-temperature steams of 1.8mpa rinse 13 minutes, then obtained by drying to the macropore bamboo charcoal particle and expansion stone at 62 DEG C
Black particle；Ceramic particle is dried at 102 DEG C to constant weight, then impregnates 1.2 in the hydrogen peroxide that the concentration of volume is 28%
It is pulled out after hour；At 1.5 DEG C, filtered after the ceramic particle pulled out is impregnated 22 minutes in the alcohol that the concentration of volume is 95%
Ceramic particle out；It is rinsed 18 minutes after ceramic particle natural air drying will be filtered out using 190 DEG C of high-temperature steams that pressure is 5.5mpa,
Then obtained by drying to the macropore ceramic particle at 102 DEG C.
Embodiment 3
Magnetic screen function forceful electric power sensor ferrite housing material in the present embodiment, using bamboo charcoal, expanded graphite and nickel
The middle layer of formation is suppressed after the mixing of Zn ferrite expanded graphite, the gross mass and nickel-zinc ferrite of bamboo charcoal and expanded graphite expand
The mass ratio of graphite is 3:4.In the interlayer structure, nickel-zinc ferrite expanded graphite has good suction wave energy, preferably
Noise when electromagnetic interference and inner body operation is shielded, muting function is reached.Substrate is fitted with inside and outside middle layer,
Substrate is obtained by polycarbonate resin, acrylic resin, ABS resin, sodium metasilicate, silicon carbide mixing compacting；The outside of substrate is equipped with
Wearing layer, wearing layer are that spraying is formed after ceramic particle, powdered steel, copper powders, bamboo fibre and titania powder mix
Structure sheaf.And ceramic particle wear-resisting property is good, and porous, and the powder of steel and copper Nano grade is imported into the micro- of ceramic particle
Kong Zhong not only enriches ceramic particle, and can bring metal-like and weight sense, while improving wear-resisting property.And bamboo fibre energy
Particle and powder is enough avoided excessively to disperse.Titanium dioxide can enhance the deodorization and sterilization ability of wearing layer.Titanium dioxide powder simultaneously
End is hidden in micropore can be avoided and is excessively easy to fall, so that better effect is lasting.
Substrate is specifically mixed by the raw material of following mass component: 12 parts of polycarbonate resin, 12 parts of acrylic resin,
15 parts of ABS resin, 10 parts of sodium metasilicate, 6 parts of silicon carbide, the combination of various materials rational proportion, complementary win-win, improving performance are filled up
Defect.The ceramic particle is far-infrared ceramic particle, and partial size is 0.2 millimeter；The titanium dioxide is nano-titanium dioxide, grain
Diameter is 1800 nanometers.
The middle layer is prepared by the following method to obtain: the bamboo charcoal being ground to form 0.8 millimeter of partial size of bamboo charcoal
Grain；The expanded graphite is ground to form 0.8 millimeter of partial size of expanded graphite particles；The nickel-zinc ferrite expanded graphite is ground
Wear into the nickel-zinc ferrite expanded graphite powder that partial size is 1800 nanometers；To the bamboo charcoal particle and expanded graphite particles respectively into
Row expanding treatment obtains macropore bamboo charcoal particle and the macropore expanded graphite particles that aperture is 500 nanometers or more, improves macropore bamboo charcoal
The soakage of particle and macropore expanded graphite particles to nickel-zinc ferrite expanded graphite；The macropore bamboo charcoal particle, macropore is swollen
Swollen graphite particle and nickel-zinc ferrite expanded graphite powder, which are placed in, to be carried out being mixed to get intermediate layer material in mixing arrangement.
The substrate is prepared by the following method to obtain: by the polycarbonate resin, acrylic resin, ABS resin, silicic acid
After sodium, silicon carbide mixing hot melt, the plastic wire for being 3 millimeters at diameter is lifted；The tensile property of wire drawing raising plastics.Take diameter 20
The carbon fiber wire and the plastic wire of micron obtain tow than set bunchy according to the quantity of 1:5；The toughness and intensity of carbon fiber
High, carbon fiber wire, which as the beam heart can be improved the toughness of tow, and intensity laterally mats formation the tow to form first layer, again
Vertically mat formation to form the second layer, repeats the operation of the first layer and the second layer, until being stacked to target thickness, then hot pressing is
Obtain the substrate.
The wearing layer is prepared by the following method to obtain: selecting ceramic particle, partial size 2000 of the partial size for 0.2 millimeter
Powdered steel, the copper powders that partial size is 2000 nanometers, the titania powder that partial size is 1800 nanometers of nanometer；To the ceramics
Grain carries out expanding treatment and obtains the macropore ceramic particle that aperture is 500 nanometers or more；By the powdered steel, the copper powders and institute
It states titania powder and is mixed to get alloy powder according to the mass ratio of 3:0.2；By the macropore ceramic particle and the alloy
Powder, which is placed in, to carry out being mixed to get mixing material in mixing arrangement；After the mixing material, bamboo fibre are mixed with epoxy resin
It is sprayed on substrate and obtains wearing layer.
The expanding treatment the following steps are included: bamboo charcoal particle or expanded graphite particles are dried at 75 DEG C to constant weight,
Then it is pulled out after being impregnated 2 hours in the hydrogen peroxide that the concentration of volume is 32%；At 3 DEG C, by the particle pulled out in volume
It is impregnated in the alcohol that concentration is 100% and filters out particle after twenty minutes；It is 2mpa that pressure will be used after the particle natural air drying filtered out
120 DEG C of high-temperature steams rinse 15 minutes, then 65 DEG C it is obtained by drying arrive the macropore bamboo charcoal particle and expanded graphite particles；
Ceramic particle is dried at 105 DEG C to constant weight, is fished out after then being impregnated 1.5 hours in the hydrogen peroxide that the concentration of volume is 60%
Out；At 3 DEG C, ceramics are filtered out after the ceramic particle pulled out is impregnated 25 minutes in the alcohol that the concentration of volume is 100%
Grain；It is rinsed 20 minutes after ceramic particle natural air drying will be filtered out using 180 DEG C of high-temperature steams that pressure is 6mpa, then 105
It is DEG C obtained by drying to arrive the macropore ceramic particle.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also considered as
Protection scope of the present invention.
Claims (7)
1. a kind of magnetic screen function forceful electric power sensor ferrite housing material, it is characterised in that: use bamboo charcoal, expanded graphite and nickel
The middle layer of formation is suppressed after the mixing of Zn ferrite expanded graphite, the gross mass and nickel-zinc ferrite of bamboo charcoal and expanded graphite expand
The mass ratio of graphite is 3:(1~4)；Substrate is fitted with inside and outside middle layer, substrate is by polycarbonate resin, polypropylene tree
Rouge, ABS resin, sodium metasilicate, silicon carbide mixing compacting obtain；The outside of substrate is equipped with wearing layer, and wearing layer is ceramic particle, steel
The structure sheaf of formation is sprayed after powder, copper powders, bamboo fibre and titania powder mixing.
2. magnetic screen function forceful electric power sensor ferrite housing material according to claim 1, it is characterised in that: the base
Plate is specifically mixed by the raw material of following mass component: 10~12 parts of polycarbonate resin, 8~12 parts of acrylic resin, ABS tree
10~15 parts of rouge, 8~10 parts of sodium metasilicate, 4~6 parts of silicon carbide.
3. magnetic screen function forceful electric power sensor ferrite housing material according to claim 1, it is characterised in that: the pottery
Porcelain particle is far-infrared ceramic particle, and partial size is 0.05~0.2 millimeter；The titanium dioxide is nano-titanium dioxide, and partial size is
400~1800 nanometers.
4. magnetic screen function forceful electric power sensor ferrite housing material according to claim 1, it is characterised in that: in described
Interbed is prepared by the following method to obtain: the bamboo charcoal being ground to form 0.5~0.8 millimeter of partial size of bamboo charcoal particle；It will be described
Expanded graphite grinds to form 0.5~0.8 millimeter of partial size of expanded graphite particles；The nickel-zinc ferrite expanded graphite is ground into
The nickel-zinc ferrite expanded graphite powder that partial size is 400~1800 nanometers.
5. magnetic screen function forceful electric power sensor ferrite housing material according to claim 1, it is characterised in that: the base
Plate is prepared by the following method to obtain: the polycarbonate resin, acrylic resin, ABS resin, sodium metasilicate, silicon carbide are mixed
After hot melt, the plastic wire for being 0.5~3 millimeter at diameter is lifted；Wire drawing improves the tensile property of plastics, takes 10~20 microns of diameter
Carbon fiber wire and the plastic wire according to 1:3~5 quantity than set bunchy obtain tow；The toughness of carbon fiber and intensity pole
Height, carbon fiber wire, which as the beam heart can be improved the toughness of tow, and intensity laterally mats formation the tow to form first layer, erect again
It to form the second layer to mating formation, repeat the operation of the first layer and the second layer, until being stacked to target thickness, then hot pressing to obtain the final product
To the substrate.
6. magnetic screen function forceful electric power sensor ferrite housing material according to claim 1, it is characterised in that: described resistance to
Mill layer is prepared by the following method to obtain: select partial size for 0.05~0.2 millimeter ceramic particle, partial size be 500~2000 to receive
Powdered steel, the copper powders that partial size is 500~2000 nanometers, the titania powder that partial size is 400~1800 nanometers of rice；To institute
It states ceramic particle progress expanding treatment and obtains the macropore ceramic particle that aperture is 500 nanometers or more；By the powdered steel, the copper
Powder and the titania powder are mixed to get alloy powder according to the mass ratio of 3:1~0.2；By the macropore ceramic particle
It is placed in the alloy powder and carries out being mixed to get mixing material in mixing arrangement；By the mixing material, bamboo fibre and epoxy
It is sprayed on substrate after resin mixing and obtains wearing layer.
7. magnetic screen function forceful electric power sensor ferrite housing material according to claim 5 or 6, it is characterised in that: institute
Expanding treatment is stated the following steps are included: drying bamboo charcoal particle or expanded graphite particles at 55~75 DEG C to constant weight, is then existed
It is pulled out after being impregnated 0.8~2 hour in the hydrogen peroxide that the concentration of volume is 30~32%；At 0~3 DEG C, the particle pulled out is existed
The concentration of volume be 95~100% alcohol in impregnate 10~filter out particle after twenty minutes；After the particle natural air drying filtered out
It is rinsed 10~15 minutes using 120~130 DEG C of high-temperature steams that pressure is 1.5~2mpa, it is then obtained by drying at 60~65 DEG C
To the macropore bamboo charcoal particle and expanded graphite particles；Ceramic particle is dried at 100~105 DEG C to constant weight, then in body
It is pulled out after being impregnated 1~1.5 hour in the hydrogen peroxide that long-pending concentration is 55~60%；At 0~3 DEG C, ceramic particle that will pull out
Ceramic particle is filtered out after impregnating 20~25 minutes in the alcohol that the concentration of volume is 95~100%；Ceramic particle will be filtered out certainly
It is rinsed 15~20 minutes after so air-drying using 180~200 DEG C of high-temperature steams that pressure is 5~6mpa, then at 100~105 DEG C
It is obtained by drying to arrive the macropore ceramic particle.
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| CN201910213433.8A CN109940943A (en) | 2019-03-20 | 2019-03-20 | A kind of magnetic screen function forceful electric power sensor ferrite housing material and preparation method thereof |
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| CN201910213433.8A CN109940943A (en) | 2019-03-20 | 2019-03-20 | A kind of magnetic screen function forceful electric power sensor ferrite housing material and preparation method thereof |
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| CN201910213433.8A Pending CN109940943A (en) | 2019-03-20 | 2019-03-20 | A kind of magnetic screen function forceful electric power sensor ferrite housing material and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180186A (en) * | 2020-01-19 | 2020-05-19 | 广安领创华财电子科技有限公司 | Preparation method of ferrite shell new material for inductor |
| CN115612963A (en) * | 2022-09-08 | 2023-01-17 | 苏州大学 | Preparation method of expanded graphite composite wave-absorbing coating |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745563A (en) * | 2017-10-16 | 2018-03-02 | 广西南宁英凡达科技有限公司 | Display device shell with electro-magnetic screen function |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107745563A (en) * | 2017-10-16 | 2018-03-02 | 广西南宁英凡达科技有限公司 | Display device shell with electro-magnetic screen function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111180186A (en) * | 2020-01-19 | 2020-05-19 | 广安领创华财电子科技有限公司 | Preparation method of ferrite shell new material for inductor |
| CN115612963A (en) * | 2022-09-08 | 2023-01-17 | 苏州大学 | Preparation method of expanded graphite composite wave-absorbing coating |
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Application publication date: 20190628 |