CN106273820A - Insulated heat conductive graphite sheet notacoria fine-processing technique - Google Patents
Insulated heat conductive graphite sheet notacoria fine-processing technique Download PDFInfo
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- CN106273820A CN106273820A CN201610603466.XA CN201610603466A CN106273820A CN 106273820 A CN106273820 A CN 106273820A CN 201610603466 A CN201610603466 A CN 201610603466A CN 106273820 A CN106273820 A CN 106273820A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
- B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
- B32B37/1284—Application of adhesive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0036—Heat treatment
- B32B38/004—Heat treatment by physically contacting the layers, e.g. by the use of heated platens or rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/06—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material of paper or cardboard
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/202—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/20—Properties of the layers or laminate having particular electrical or magnetic properties, e.g. piezoelectric
- B32B2307/206—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/302—Conductive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/304—Insulating
Abstract
The invention discloses insulated heat conductive graphite sheet notacoria fine-processing technique, including 1) raw material；2) precomminution；3) except ferrum；4) calcining；5) cooling；6) separating twice；7) screening；8) mixing；9) die mould and heating；10) high temperature graphitization；11) notacoria；12) 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 a kind of insulated heat conductive graphite
Sheet notacoria fine-processing technique.
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 and calcination stage, to heat conduction stone in prior art
The process of ink sheet raw material becomes more meticulous not, causes in its raw material containing more impurity component so that the heat conduction stone that final production goes out
The quality of ink sheet is not high enough, and 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 insulated heat conductive graphite sheet notacoria fine-processing technique, should
Processing technique step is scientific and reasonable, improves the processing technique of prior art, the process becoming more meticulous raw material so that it is
Granularity more uniformity, improves the qualification rate of finished product, and then improves electric conductivity and the heat conductivity of conductive graphite sheet, and
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:
Insulated heat conductive graphite sheet notacoria fine-processing technique, comprises the following steps:
1) raw material: choose the petroleum coke raw material as conductive graphite sheet；
2) precomminution: above-mentioned petroleum coke is crushed in advance through disintegrating apparatus the medium size of 60-80mm；
3) except ferrum: size-reduced petroleum coke is carried out in being placed in trash separator except ferrum operates；
4) calcining: calcine the petroleum coke particles through remove impurity in calciner, calcining is divided into four-stage, is respectively pre-
Calcination stage: this stage is that precalcining phase temperature increases to 200 DEG C by increase per minute for the temperature in calciner 40 DEG C,
This stage calcination time 10 min；Intermediate calcination stage: this stage is by increase per minute for the temperature in calciner 25 DEG C, in
Between calcination stage temperature increase to 900 DEG C, this stage calcination time 30 min, and after temperature is raised to 900 DEG C be incubated 10-
15min；Rear calcination stage: this stage is by increase per minute for the temperature in calciner 20 DEG C, and rear calcination stage temperature increases
To 1200-1300 DEG C, this stage calcination time 15-20 min；Insulation calcination stage: the temperature in this stage is always held at
1200-1300 DEG C, insulation calcining 30min at such a temperature；
5) cooling: the petroleum coke particles calcined cools down in revolution cooler, uses multiple nozzle to petroleum coke
Grain water spray chilling, the discharging when detecting temperature and reaching 120-150 DEG C, form coke；
6) separating twice: the cooled petroleum coke completed is ground into, through disintegrating apparatus, little that grain diameter is 0.3-0.5mm
Grain；
7) screening: carry out three level screen through the little granule of petroleum coke of separating twice respectively through screening plant, filter out size
Consistent granule is out；
8) mixing: little for petroleum coke granule and binding agent are carried out kneading, forms compound；
9) 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；
10) high temperature graphitization: carry out high fire stons in the conductive graphite sheet base substrate of above-mentioned heating is fed directly to high temperature graphitization stove
Inkization operates；
11) notacoria: 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 adhere to one layer of release paper in conductive graphite sheet bottom surface, when temperature drops to 10-15 DEG C, at the upper surface of conductive graphite sheet
Carrying out notacoria process, adhering to a layer thickness is PET film thick for 0.03-0.05mm；
12) 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, be by little for petroleum coke granule respectively through 400 mesh, 200 mesh and
100 mesh mesh screens carry out three level screen.
As preferably, in described step (8), the little granule of petroleum coke and binding agent carry out kneading with the ratio of 5:1, wherein
Binding 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, calcination stage is divided into four-stage, by the control of four-stage different temperatures, it is possible to preferably improve oil
The quality of burnt calcining and efficiency, and the most different in the state of each stage petroleum coke, use the rational calcination operation can
Improve the crystal forming effect after petroleum coke shapes, and moisture in petroleum coke and volatile material can more preferably, more fill
That divides vapors away；
Its three, 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 four, 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 five, use the notacoria processing method under keeping warm mode, first, improve the activity of glue molecule, can not only carry
The effect of high gum, and gum efficiency can also be improved, and in order to reach preferable notacoria treatment effect, therefore need temperature
Further reduced, carried out notacoria process when temperature drops to 20-30 DEG C again, it is possible to dropped to by the damage coefficient of PET film
Low, it is achieved preferably notacoria.
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.
Insulated heat conductive graphite sheet notacoria fine-processing technique, comprises the following steps:
1) raw material: choose the petroleum coke raw material as conductive graphite sheet；
2) precomminution: above-mentioned petroleum coke is crushed in advance the medium size of 60-80mm through disintegrating apparatus, because of carbon raw material granule
Spend big, in calcination process, not only do not ensure the uniform quality after calcining, and affected by calciner, to charging
Difficulty is caused, it is ensured that the follow-up degree of depth that is capable of is calcined with discharge；
3) except ferrum: size-reduced petroleum coke 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.
4) calcining: calcine the petroleum coke particles through remove impurity in calciner, calciner uses rotary kiln to enter
Row calcining, calcining is divided into four-stage, the respectively precalcining stage: this stage is by increase per minute for the temperature in calciner
40 DEG C, precalcining phase temperature increases to 200 DEG C, this stage calcination time 10 min, and this stage mainly removes moisture removal or waves
Volatile material is to improve electric conductivity, to improve true density etc.；Intermediate calcination stage: this stage is by the temperature every point in calciner
Clock increases by 25 DEG C, and intermediate calcination stage temperature increases to 900 DEG C, this stage calcination time 30 min, and is raised to 900 DEG C in temperature
Rear insulation 10-15min, calcining heat gives certain temperature retention time tap density to calcined coke and resistivity when 900 DEG C
The improvement of index is highly beneficial；Rear calcination stage: this stage is by increase per minute for the temperature in calciner 20 DEG C, calcines afterwards
Phase temperature increases to 1200-1300 DEG C, this stage calcination time 15-20 min, suitably reduces heating rate pair in high temperature section
Improve calcined coke true density and antioxidant activity index is highly beneficial；Insulation calcination stage: the temperature in this stage is always maintained at
At 1200-1300 DEG C, insulation calcining 30min at such a temperature；
5) cooling: the petroleum coke particles calcined cools down in revolution cooler, uses multiple nozzle to petroleum coke
Grain water spray chilling, the discharging when detecting temperature and reaching 120-150 DEG C, form coke；
6) separating twice: the cooled petroleum coke completed is ground into, through disintegrating apparatus, little that grain diameter is 0.3-0.5mm
Grain；
7) screening: carry out three level screen through the little granule of petroleum coke of separating twice respectively through screening plant, filter out size
Out, three level screen, is to be carried out through 400 mesh, 200 mesh and 100 mesh mesh screens respectively by little for petroleum coke granule to consistent granule
Three level screen；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
Sieved by three grades of screen clothes, thus can be further ensured that the uniformity of raw material degree, improve yield rate；
8) mixing: little for petroleum coke granule and binding agent are carried out kneading, forms compound, the little granule of petroleum coke and binding agent
Carrying out kneading with the ratio of 5:1, wherein binding agent is coal tar pitch；
9) 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；
10) high temperature graphitization: carry out high fire stons in the conductive graphite sheet base substrate of above-mentioned heating is fed directly to high temperature graphitization stove
Inkization operates, and the graphitization temperature scope in pyrographite stove is 1100-1200 DEG C, graphitization time 15-20min；
11) notacoria: in needing insulation or heat insulation circuit design at some, in order to preferably realize function optimization,
The surface of conductive graphite sheet needs to carry out notacoria process；The specifically conductive graphite sheet after high temperature graphitization is cooled to 50-60
DEG C time its bottom surface coat one layer of heat-resisting double faced adhesive tape, and conductive graphite sheet bottom surface adhere to one layer of release paper, treat that temperature drops to 10-
When 15 DEG C, the upper surface at conductive graphite sheet carries out notacoria process, and adhering to a layer thickness is PET film thick for 0.03-0.05mm；This
Invention is to carry out notacoria technique when conductive graphite sheet temperature is down to certain limit, it than the advantage of room temperature be enable to heat-resisting
The bioactive molecule of double faced adhesive tape increases, and preferably realizes the bonding of double faced adhesive tape and release paper and conductive graphite sheet, improves back of the body notacoria effect
Fruit and efficiency, and in order to reach preferable notacoria treatment effect, therefore need further to be reduced temperature, temperature drops to
Notacoria process is carried out again, it is possible to be preferably minimized by the damage coefficient of PET film, it is achieved preferably notacoria when 20-30 DEG C；
12) 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. insulated heat conductive graphite sheet notacoria fine-processing technique, it is characterised in that comprise the following steps:
1) raw material: choose the petroleum coke raw material as conductive graphite sheet；
2) precomminution: above-mentioned petroleum coke is crushed in advance through disintegrating apparatus the medium size of 60-80mm；
3) except ferrum: size-reduced petroleum coke is carried out in being placed in trash separator except ferrum operates；
4) calcining: calcine the petroleum coke particles through remove impurity in calciner, calcining is divided into four-stage, is respectively pre-
Calcination stage: this stage is that precalcining phase temperature increases to 200 DEG C by increase per minute for the temperature in calciner 40 DEG C,
This stage calcination time 10 min；Intermediate calcination stage: this stage is by increase per minute for the temperature in calciner 25 DEG C, in
Between calcination stage temperature increase to 900 DEG C, this stage calcination time 30 min, and after temperature is raised to 900 DEG C be incubated 10-
15min；Rear calcination stage: this stage is by increase per minute for the temperature in calciner 20 DEG C, and rear calcination stage temperature increases
To 1200-1300 DEG C, this stage calcination time 15-20 min；Insulation calcination stage: the temperature in this stage is always held at
1200-1300 DEG C, insulation calcining 30min at such a temperature；
5) cooling: the petroleum coke particles calcined cools down in revolution cooler, uses multiple nozzle to petroleum coke
Grain water spray chilling, the discharging when detecting temperature and reaching 120-150 DEG C, form coke；
6) separating twice: the cooled petroleum coke completed is ground into, through disintegrating apparatus, little that grain diameter is 0.3-0.5mm
Grain；
7) screening: carry out three level screen through the little granule of petroleum coke of separating twice respectively through screening plant, filter out size
Consistent granule is out；
8) mixing: little for petroleum coke granule and binding agent are carried out kneading, forms compound；
9) 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；
10) high temperature graphitization: carry out high fire stons in the conductive graphite sheet base substrate of above-mentioned heating is fed directly to high temperature graphitization stove
Inkization operates；
11) notacoria: 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 adhere to one layer of release paper in conductive graphite sheet bottom surface, when temperature drops to 10-15 DEG C, at the upper surface of conductive graphite sheet
Carrying out notacoria process, adhering to a layer thickness is PET film thick for 0.03-0.05mm；
12) 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.
Insulated heat conductive graphite sheet notacoria fine-processing technique the most according to claim 1, it is characterised in that: described step
(3) trash separator in includes trash extraction box, charging aperture, discharging opening and crutcher, perpendicular at the charging aperture of described trash extraction box
Remove iron plate to arranging at least one piece, and at the charging aperture of described trash extraction box, be additionally provided with mesh screen uniform distributor.
Insulated heat conductive graphite sheet notacoria fine-processing technique the most according to claim 2, it is characterised in that: described enter
Arranging rotary open type lid at material mouth, described rotary open type lid one end is free end, and the other end is hinged by jointed shaft
It is connected on the casing of described trash extraction box.
Insulated heat conductive graphite sheet notacoria fine-processing technique the most according to claim 1, it is characterised in that: described step
(7) three level screen, is that through 400 mesh, 200 mesh and 100 mesh mesh screens, little for petroleum coke granule is carried out three level screen respectively.
Insulated heat conductive graphite sheet notacoria fine-processing technique the most according to claim 1, it is characterised in that: described step
(8) in, the little granule of petroleum coke and binding agent carry out kneading with the ratio of 5:1, and wherein binding agent is coal tar pitch.
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| CN201610603466.XA CN106273820B (en) | 2016-07-28 | 2016-07-28 | Insulated heat conductive graphite piece notacoria fine-processing technique |
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| CN201610603466.XA CN106273820B (en) | 2016-07-28 | 2016-07-28 | Insulated heat conductive graphite piece notacoria fine-processing technique |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090311599A1 (en) * | 2006-07-19 | 2009-12-17 | Takanobu Kawai | Negative Electrode Active Material for Lithium Ion Rechargeable Battery and Negative Electrode Using the Same |
| CN104241424A (en) * | 2014-09-19 | 2014-12-24 | 乐凯胶片股份有限公司 | Heat dissipation solar cell back membrane |
| CN104649263A (en) * | 2015-03-06 | 2015-05-27 | 山西亮宇炭素有限公司 | Preparation method of carbon-graphite composite material |
-
2016
- 2016-07-28 CN CN201610603466.XA patent/CN106273820B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090311599A1 (en) * | 2006-07-19 | 2009-12-17 | Takanobu Kawai | Negative Electrode Active Material for Lithium Ion Rechargeable Battery and Negative Electrode Using the Same |
| CN104241424A (en) * | 2014-09-19 | 2014-12-24 | 乐凯胶片股份有限公司 | Heat dissipation solar cell back membrane |
| CN104649263A (en) * | 2015-03-06 | 2015-05-27 | 山西亮宇炭素有限公司 | Preparation method of carbon-graphite composite material |
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| CN106273820B (en) | 2018-02-09 |
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