CN106231862A - The technique preparing electronic equipment conductive graphite sheet based on white carbon black - Google Patents
The technique preparing electronic equipment conductive graphite sheet based on white carbon black Download PDFInfo
- Publication number
- CN106231862A CN106231862A CN201610603043.8A CN201610603043A CN106231862A CN 106231862 A CN106231862 A CN 106231862A CN 201610603043 A CN201610603043 A CN 201610603043A CN 106231862 A CN106231862 A CN 106231862A
- Authority
- CN
- China
- Prior art keywords
- carbon black
- white carbon
- graphite sheet
- conductive graphite
- electronic equipment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 49
- 239000010439 graphite Substances 0.000 title claims abstract description 49
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000006229 carbon black Substances 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 21
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000005087 graphitization Methods 0.000 claims abstract description 21
- 239000002994 raw material Substances 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000012216 screening Methods 0.000 claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 20
- 239000008187 granular material Substances 0.000 claims description 19
- 238000000605 extraction Methods 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 10
- 239000012535 impurity Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 6
- 238000004898 kneading Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- GQWNECFJGBQMBO-UHFFFAOYSA-N Molindone hydrochloride Chemical compound Cl.O=C1C=2C(CC)=C(C)NC=2CCC1CN1CCOCC1 GQWNECFJGBQMBO-UHFFFAOYSA-N 0.000 claims description 3
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003830 anthracite Substances 0.000 claims description 3
- 239000011294 coal tar pitch Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 8
- 230000001976 improved effect Effects 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 3
- 238000012797 qualification Methods 0.000 abstract description 3
- 238000007493 shaping process Methods 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002390 adhesive tape Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
Abstract
The invention discloses the technique preparing electronic equipment conductive graphite sheet based on white carbon black, including 1) raw material；2) precomminution；3) pre-screening；4) except ferrum；5) separating twice；6) regrading；7) mixing；8) die mould and heating；9) high temperature graphitization；10) gum；11) cutting；This processing technique step is scientific and reasonable, the processing technique of prior art is improved, the process that raw material is become more meticulous, make its granularity more uniformity, improve the qualification rate of finished product, and then improve electric conductivity and the heat conductivity of conductive graphite sheet, and its chemical stability can also be improved by this technique, reduce its thermal expansivity, and easily machine-shaping.
Description
Technical field
The present invention relates to the conductive graphite sheet of a kind of electronics field, particularly relate to one and prepare electronics based on white carbon black
The equipment technique of conductive graphite sheet.
Background technology
Conductive graphite sheet is a kind of brand-new heat conduction and heat radiation material, along two square uniform heat conduction, shielding thermal source and assembly
Simultaneously improving the performance of consumption electronic product, color is usually black, and material is that native graphite is through exquisiteness processing, heat conductivity
In the horizontal direction be up to 1500W/M-K, use IC, CPU, MOS, LED, fin, LCD-TV, notebook computer, communication apparatus,
Wireless exchange board, DVD, handheld device etc..
Conductive graphite sheet is because of nonmetallic materials, but has heat conductivity the highest as metal and electric conductivity,
Its heat-conductivity conducting is the most relatively better than aluminium foil or Copper Foil, but the conduction that conductive graphite sheet is produced in existing production technology
Property and heat conductivity more reach optimal, essentially consist in raw material processing stage, place to conductive graphite tablet raw material in prior art
Reason becomes more meticulous not, causes in its raw material containing more impurity component so that the quality of the conductive graphite sheet that final production goes out is not
Enough height, qualification rate reduces, and can affect it preferably to shop property and heat conductivity.
Summary of the invention
For the problem of above-mentioned existence, it is desirable to provide prepare the work of electronic equipment conductive graphite sheet based on white carbon black
Skill, this processing technique step is scientific and reasonable, improves the processing technique of prior art, the place becoming more meticulous raw material
Reason so that it is granularity more uniformity, improves the qualification rate of finished product, and then improves the electric conductivity of conductive graphite sheet and lead
Hot, and its chemical stability can also be improved by this technique, reduce its thermal expansivity, and easily machine-shaping.
To achieve these goals, the technical solution adopted in the present invention is as follows:
The technique preparing electronic equipment conductive graphite sheet based on white carbon black, comprises the following steps:
1) raw material: choose the white carbon black raw material as conductive graphite sheet；
2) precomminution: above-mentioned white carbon black is crushed in advance through disintegrating apparatus the medium size of 60-80mm；
3) pre-screening: the white carbon black that above-mentioned warp crushes is sieved by vibrosieve, removes larger particles impurity in anthracite；
4) except ferrum: size-reduced white carbon black is carried out in being placed in trash separator except ferrum operates；
5) separating twice: the cooled white carbon black completed is ground into, through disintegrating apparatus, the little granule that grain diameter is 0.3-0.5mm；
6) regrading: carry out three level screen through the little granule of white carbon black of separating twice respectively through screening plant, filter out size
Consistent granule is out；
7) mixing: little for white carbon black granule and binding agent are carried out kneading, forms compound；
8) die mould and heating: in a mold by compressing for above-mentioned compound, being pressed into square sheet shape, its thickness is at 0.01-
Between 0.02mm, form conductive graphite sheet base substrate, arrange in mould and add hot channel, by adding hot channel, compressing is led
Hot graphite flake base substrate tentatively heats, heating and temperature control between 200-300 DEG C, heat time heating time 30min；
9) high temperature graphitization: carry out pyrographite in the conductive graphite sheet base substrate of above-mentioned heating is fed directly to high temperature graphitization stove
Change operation；
10) gum: the conductive graphite sheet after high temperature graphitization is cooled to when 50-60 DEG C heat-resisting two-sided its bottom surface coating one layer
Glue, and one layer of release paper is adhered in conductive graphite sheet bottom surface；
11) cutting: the conductive graphite sheet base substrate after graphitization forms the conductive graphite sheet of finished product, and cooling down, Jin Ertong
Cross cutting equipment and cut into the size of needs.
As preferably, the trash separator in described step (3) includes trash extraction box, charging aperture, discharging opening and crutcher,
At the charging aperture of described trash extraction box, vertically arranged at least one piece is removed iron plate, and is additionally provided with net at the charging aperture of described trash extraction box
Sieve uniform distributor.
As preferably, arranging rotary open type lid at described charging aperture, described rotary open type lid one end is certainly
By holding, the other end is hingedly connected on the casing of described trash extraction box by jointed shaft.
As preferably, described step (7) three level screen, is respectively through 400 mesh, 200 mesh and 100 mesh by little for white carbon black granule
Mesh screen carries out three level screen.
As preferably, in described step (8), the little granule of white carbon black and binding agent carry out kneading with the ratio of 5:1, wherein bond
Agent is coal tar pitch.
The invention has the beneficial effects as follows: compared with prior art, the present invention thes improvement is that,
One, sets up except ferrum operates, and because containing the impurity such as irony in the raw material of pulverizing, therefore needs by trash separator its inside
Impurity is purged, and so can improve the purity of raw material, so improve the quality of processing, electric conductivity and heat conductivity as well as
Improve, also remove during the irony impurity in raw material is prevented from following process oxidized；
Its two, increase the screening stage, the final uniformity improving raw material is had a very big impact by setting up of screening stage, this
Bright mentality of designing is to be sieved by three grades of screen clothes, thus can be further ensured that the uniformity of raw material degree, improves yield rate；
Its three, the present invention also set up die mould and heating before high temperature graphitization, heated immediately after die mould completes, be into
A transition before row high temperature graphitization, so can improve the efficiency of high temperature graphitization, enters high temperature after reducing again die mould
Gap in graphitizing furnace.
Its four, use the gum processing method under keeping warm mode, improve the activity of glue molecule, gum can not only be improved
Effect, and gum efficiency can also be improved, and then improve the adhesiving effect of conductive graphite sheet and circuit board etc..
Detailed description of the invention
In order to make those of ordinary skill in the art be better understood on technical scheme, below in conjunction with embodiment
Technical scheme is further described.
The technique preparing electronic equipment conductive graphite sheet based on white carbon black, comprises the following steps:
1) raw material: choose the white carbon black raw material as conductive graphite sheet；
2) precomminution: above-mentioned white carbon black is crushed in advance the medium size of 60-80mm through disintegrating apparatus, because of carbon raw material granularity
Excessive, in calcination process, not only do not ensure the uniform quality after calcining, and affected by calciner, to charging and
Discharge causes difficulty, it is ensured that the follow-up degree of depth that is capable of is calcined；
3) pre-screening: the white carbon black that above-mentioned warp crushes is sieved by vibrosieve, removes larger particles impurity in anthracite；
4) except ferrum: size-reduced white carbon black is carried out in being placed in trash separator except ferrum operates；
Trash separator includes trash extraction box, charging aperture, discharging opening and crutcher, vertically sets at the charging aperture of described trash extraction box
Put at least one piece and remove iron plate, and at the charging aperture of described trash extraction box, be additionally provided with mesh screen uniform distributor, at described charging aperture
Arranging rotary open type lid, described rotary open type lid one end is free end, and the other end is hingedly connected to by jointed shaft
On the casing of described trash extraction box, the mesh of mesh screen uniform distributor is 60 or 80 mesh, so by by former for the graininess of precomminution
Material enters mesh screen uniform distributor and is spread out uniform blanking, and the granule of blanking will spread out, it is simple to is inhaled by impurity and is removing
On iron plate；
Except iron plate is vertically set up in parallel multiple in trash extraction box, each two is removed and is set to blanking channel between iron plate, precomminution
Granule is from throat-fed, by being inhaled by irony impurity except on iron plate except iron plate during blanking, is rotation because of lid again
Turn open-type lid, therefore when reaching certain thickness except ferrum, open lid, periodically clear up except iron plate, in order to avoid impact
Dust removal rate and effect, it is simple, convenient that lid is arranged to rotary open type lid, it is possible to quickly realizes installing except the cleaning of iron plate
Operation.
5) separating twice: the cooled white carbon black completed is ground into, through disintegrating apparatus, little that grain diameter is 0.3-0.5mm
Grain；
6) regrading: carry out three level screen through the little granule of white carbon black of separating twice respectively through screening plant, filter out size
Out, three level screen, is that through 400 mesh, 200 mesh and 100 mesh mesh screens, little for white carbon black granule is carried out three grades respectively to consistent granule
Screening；The final uniformity improving raw material is had a very big impact by setting up of screening stage, and mentality of designing of the present invention is to pass through
Three grades of screen clothes sieve, and thus can be further ensured that the uniformity of raw material degree, improve yield rate；
7) mixing: little for white carbon black granule and binding agent are carried out kneading, forms compound, and the little granule of white carbon black and binding agent are with 5:1's
Ratio carries out kneading, and wherein binding agent is coal tar pitch；
8) die mould and heating: in a mold by compressing for above-mentioned compound, being pressed into square sheet shape, its thickness is at 0.01-
Between 0.02mm, form conductive graphite sheet base substrate, arrange in mould and add hot channel, by adding hot channel, compressing is led
Hot graphite flake base substrate tentatively heats, heating and temperature control between 200-300 DEG C, heat time heating time 30min；The present invention is at height
Also set up die mould and heating before temperature graphitization, heat immediately after die mould completes, be by before high temperature graphitization
Individual transition, so can improve the efficiency of high temperature graphitization, enters the gap in high temperature graphitization stove after reducing again die mould；
9) high temperature graphitization: carry out pyrographite in the conductive graphite sheet base substrate of above-mentioned heating is fed directly to high temperature graphitization stove
Changing operation, the graphitization temperature scope in pyrographite stove is 1100-1200 DEG C, graphitization time 15-20min；
10) gum: in order to preferably adhere to IC and circuit board, need to carry out gum processing, through pyrographite on conductive graphite sheet
Coat one layer of heat-resisting double faced adhesive tape in its bottom surface when conductive graphite sheet after change is cooled to 50-60 DEG C, and in conductive graphite sheet bottom surface
Adhere to one layer of release paper；The present invention is to carry out gum technique when conductive graphite sheet temperature is down to certain limit, and it is than room temperature
Advantage is that the bioactive molecule enabling to heat-resisting double faced adhesive tape increases, and preferably realizes double faced adhesive tape and release paper and conductive graphite sheet
Bonding, improve gum effect and efficiency；
11) cutting: the conductive graphite sheet base substrate after graphitization forms the conductive graphite sheet of finished product, and cooling down, Jin Ertong
Cross cutting equipment and cut into the size of needs.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.The technology of the industry
Personnel, it should be appreciated that the present invention is not restricted to the described embodiments, simply illustrating this described in above-described embodiment and description
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, and these become
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and
Equivalent defines.
Claims (5)
1. the technique preparing electronic equipment conductive graphite sheet based on white carbon black, it is characterised in that comprise the following steps:
1) raw material: choose the white carbon black raw material as conductive graphite sheet；
2) precomminution: above-mentioned white carbon black is crushed in advance through disintegrating apparatus the medium size of 60-80mm；
3) pre-screening: the white carbon black that above-mentioned warp crushes is sieved by vibrosieve, removes larger particles impurity in anthracite；
4) except ferrum: size-reduced white carbon black is carried out in being placed in trash separator except ferrum operates；
5) separating twice: the cooled white carbon black completed is ground into, through disintegrating apparatus, the little granule that grain diameter is 0.3-0.5mm；
6) regrading: carry out three level screen through the little granule of white carbon black of separating twice respectively through screening plant, filter out size
Consistent granule is out；
7) mixing: little for white carbon black granule and binding agent are carried out kneading, forms compound；
8) die mould and heating: in a mold by compressing for above-mentioned compound, being pressed into square sheet shape, its thickness is at 0.01-
Between 0.02mm, form conductive graphite sheet base substrate, arrange in mould and add hot channel, by adding hot channel, compressing is led
Hot graphite flake base substrate tentatively heats, heating and temperature control between 200-300 DEG C, heat time heating time 30min；
9) high temperature graphitization: carry out pyrographite in the conductive graphite sheet base substrate of above-mentioned heating is fed directly to high temperature graphitization stove
Change operation；
10) gum: the conductive graphite sheet after high temperature graphitization is cooled to when 50-60 DEG C heat-resisting two-sided its bottom surface coating one layer
Glue, and one layer of release paper is adhered in conductive graphite sheet bottom surface；
11) cutting: the conductive graphite sheet base substrate after graphitization forms the conductive graphite sheet of finished product, and cooling down, Jin Ertong
Cross cutting equipment and cut into the size of needs.
The technique preparing electronic equipment conductive graphite sheet based on white carbon black the most according to claim 1, it is characterised in that: institute
The trash separator stated in step (3) includes trash extraction box, charging aperture, discharging opening and crutcher, in the charging of described trash extraction box
At Kou, vertically arranged at least one piece is removed iron plate, and is additionally provided with mesh screen uniform distributor at the charging aperture of described trash extraction box.
The technique preparing electronic equipment conductive graphite sheet based on white carbon black the most according to claim 2, it is characterised in that:
Arranging rotary open type lid at described charging aperture, described rotary open type lid one end is free end, and the other end is by hinged
Axle is hingedly connected on the casing of described trash extraction box.
The technique preparing electronic equipment conductive graphite sheet based on white carbon black the most according to claim 1, it is characterised in that: institute
State step (7) three level screen, be that little for white carbon black granule is carried out three level screen through 400 mesh, 200 mesh and 100 mesh mesh screens respectively.
The technique preparing electronic equipment conductive graphite sheet based on white carbon black the most according to claim 1, it is characterised in that: institute
Stating the little granule of white carbon black and binding agent in step (8) and carry out kneading with the ratio of 5:1, wherein binding agent is coal tar pitch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603043.8A CN106231862B (en) | 2016-07-28 | 2016-07-28 | The technique that electronic equipment conductive graphite piece is prepared based on carbon black |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603043.8A CN106231862B (en) | 2016-07-28 | 2016-07-28 | The technique that electronic equipment conductive graphite piece is prepared based on carbon black |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106231862A true CN106231862A (en) | 2016-12-14 |
| CN106231862B CN106231862B (en) | 2018-06-19 |
Family
ID=57534593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610603043.8A Active CN106231862B (en) | 2016-07-28 | 2016-07-28 | The technique that electronic equipment conductive graphite piece is prepared based on carbon black |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106231862B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113444499A (en) * | 2021-06-25 | 2021-09-28 | 深圳市三科斯电子材料有限公司 | Double-sided adhesive high-thermal-conductivity synthetic graphite flake and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214945A (en) * | 2007-12-26 | 2008-07-09 | 东华大学 | Method for preparing high-strength thermal insulation asphalt carbon foam material |
| CN103805144A (en) * | 2014-03-04 | 2014-05-21 | 中国科学院宁波材料技术与工程研究所 | Graphene heat conducting film and preparation method thereof |
| TW201422524A (en) * | 2012-12-10 | 2014-06-16 | 國立清華大學 | Low-temperature manufacturing method and system for spheroidal graphite |
| CN104528693A (en) * | 2009-05-26 | 2015-04-22 | 创业发展联盟技术有限公司 | Carbon material and method for producing the same |
| US20150191357A1 (en) * | 2012-07-23 | 2015-07-09 | Graduate School At Shenzhen, Tsinghua University | High-density and high-hardness graphene-based porous carbon material, method for making the same, and applications using the same |
| US20150360952A1 (en) * | 2014-06-12 | 2015-12-17 | Board Of Regents, The University Of Texas System | Method for manufacturing of three-dimensional freestanding porous thin-graphite with hierarchical porosity |
| CN105419095A (en) * | 2015-12-21 | 2016-03-23 | 赵社涛 | Method for producing carbon black composite powder material |
-
2016
- 2016-07-28 CN CN201610603043.8A patent/CN106231862B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214945A (en) * | 2007-12-26 | 2008-07-09 | 东华大学 | Method for preparing high-strength thermal insulation asphalt carbon foam material |
| CN104528693A (en) * | 2009-05-26 | 2015-04-22 | 创业发展联盟技术有限公司 | Carbon material and method for producing the same |
| US20150191357A1 (en) * | 2012-07-23 | 2015-07-09 | Graduate School At Shenzhen, Tsinghua University | High-density and high-hardness graphene-based porous carbon material, method for making the same, and applications using the same |
| TW201422524A (en) * | 2012-12-10 | 2014-06-16 | 國立清華大學 | Low-temperature manufacturing method and system for spheroidal graphite |
| CN103805144A (en) * | 2014-03-04 | 2014-05-21 | 中国科学院宁波材料技术与工程研究所 | Graphene heat conducting film and preparation method thereof |
| US20150360952A1 (en) * | 2014-06-12 | 2015-12-17 | Board Of Regents, The University Of Texas System | Method for manufacturing of three-dimensional freestanding porous thin-graphite with hierarchical porosity |
| CN105419095A (en) * | 2015-12-21 | 2016-03-23 | 赵社涛 | Method for producing carbon black composite powder material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113444499A (en) * | 2021-06-25 | 2021-09-28 | 深圳市三科斯电子材料有限公司 | Double-sided adhesive high-thermal-conductivity synthetic graphite flake and preparation method thereof |
| CN113444499B (en) * | 2021-06-25 | 2022-03-11 | 深圳市三科斯电子材料有限公司 | Double-sided adhesive high-thermal-conductivity synthetic graphite flake and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106231862B (en) | 2018-06-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106278265A (en) | High heat-conductivity conducting graphite heat-conducting fin fine-processing technique | |
| CN106218189A (en) | The technique preparing high-termal conductivity conductive graphite sheet based on notacoria processing method | |
| CN104591150A (en) | Production method for isostatic pressure graphite | |
| CN106316397A (en) | Method of preparing high-strength heat conducting graphite flakes with flow guiding and heat conducting functions | |
| CN106231862A (en) | The technique preparing electronic equipment conductive graphite sheet based on white carbon black | |
| CN103923605B (en) | A kind of making method of silicon carbide ball | |
| CN106219529B (en) | The technique that highly conductive thermal diffusivity conductive graphite piece is prepared based on metallurgical coke | |
| CN106273819B (en) | The technique that high-strength conducting conductive graphite piece is prepared based on pitch coke | |
| CN106218193B (en) | Electronic equipment conductive graphite piece gum fine-processing technique | |
| CN106240039A (en) | The technique preparing thermal diffusivity conductive graphite sheet based on anthracite | |
| CN106276871A (en) | The technique preparing conductive graphite sheet based on pitch coke and petroleum coke co-blended | |
| CN109053010B (en) | Hydrophobic perlite production process | |
| CN101214985A (en) | Technique for preparing brown corundum | |
| CN106273820A (en) | Insulated heat conductive graphite sheet notacoria fine-processing technique | |
| CN102190300A (en) | Method for comprehensive utilization of coal gangue | |
| CN106311445A (en) | Crushing classification-ore grinding method for bauxite | |
| CN102992780B (en) | Special micropowder for white corundum heat radiating film and production method of micropowder | |
| CN209013666U (en) | A kind of tekite sand manufacturing and processing equipment | |
| CN108865197A (en) | A kind of fine coal microwave-heating system and product separation method | |
| CN105505334A (en) | Graphene radiator as well as preparation method and application thereof | |
| CN111829293A (en) | Method for drying silicon wafer cutting waste by fluidized bed | |
| CN205188156U (en) | Compound fertilizer production line | |
| EP2750489A1 (en) | Method for dismantling electronic components on a circuit board by fine sand | |
| CN214950465U (en) | Multistage stoving structure of tungsten powder | |
| CN104152853B (en) | Glass ceramics target and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191218 Address after: No. 36, Baima Industrial Park, Gaogang District, Taizhou City, Jiangsu Province Patentee after: Lu Jing Address before: 241006 Anhui Province, Wuhu City Economic Development Zone East Ouyang Hu Lu No. 28 Patentee before: WUHU MITEC Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20200514 Address after: 033000 Dongxu Shangzhuang village, Xiaoyi City, Luliang City, Shanxi Province Patentee after: Xiaoyi Xin'an pigment carbon black Co.,Ltd. Address before: No. 36, Baima Industrial Park, Gaogang District, Taizhou City, Jiangsu Province Patentee before: Lu Jing |
|
| TR01 | Transfer of patent right | ||
| CP03 | Change of name, title or address |
Address after: 032300 Dong Xu Shang Zhuang Cun, Xiaoyi City, Luliang City, Shanxi Province Patentee after: Xiaoyi Xin'an pigment New Material Co.,Ltd. Address before: 033000 Dongxu Shangzhuang village, Xiaoyi City, Luliang City, Shanxi Province Patentee before: Xiaoyi Xin'an pigment carbon black Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230615 Address after: 032300 Shengxihu Subdistricts of China, Xiaoyi City, Lvliang, Xiaoyi, Shanxi Province Patentee after: Lvliang Black Cat New Material Co.,Ltd. Address before: 032300 Dong Xu Shang Zhuang Cun, Xiaoyi City, Luliang City, Shanxi Province Patentee before: Xiaoyi Xin'an pigment New Material Co.,Ltd. |
|
| TR01 | Transfer of patent right |