CN108646885A - Cooling fin for laptop - Google Patents

Cooling fin for laptop Download PDF

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Publication number
CN108646885A
CN108646885A CN201710665192.1A CN201710665192A CN108646885A CN 108646885 A CN108646885 A CN 108646885A CN 201710665192 A CN201710665192 A CN 201710665192A CN 108646885 A CN108646885 A CN 108646885A
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Prior art keywords
parts
kapton
graphite
treated
heat preservation
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CN201710665192.1A
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Chinese (zh)
Inventor
金闯
梁豪
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Taicang Sidike New Material Science and Technology Co Ltd
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Taicang Sidike New Material Science and Technology Co Ltd
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Priority to CN201710665192.1A priority Critical patent/CN108646885A/en
Publication of CN108646885A publication Critical patent/CN108646885A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D179/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen, with or without oxygen, or carbon only, not provided for in groups C09D161/00 - C09D177/00
    • C09D179/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
    • C09D179/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
    • B28B3/12—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein one or more rollers exert pressure on the material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/522—Graphite
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/524—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from polymer precursors, e.g. glass-like carbon material
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62218—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products obtaining ceramic films, e.g. by using temporary supports
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G73/00—Macromolecular compounds obtained by reactions forming a linkage containing nitrogen with or without oxygen or carbon in the main chain of the macromolecule, not provided for in groups C08G12/00 - C08G71/00
    • C08G73/06—Polycondensates having nitrogen-containing heterocyclic rings in the main chain of the macromolecule
    • C08G73/10—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
    • C08G73/1067—Wholly aromatic polyimides, i.e. having both tetracarboxylic and diamino moieties aromatically bound
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/20—Cooling means
    • G06F1/203—Cooling means for portable computers, e.g. for laptops
    • 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
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30—Constituents and secondary phases not being of a fibrous nature
    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
    • C04B2235/483—Si-containing organic compounds, e.g. silicone resins, (poly)silanes, (poly)siloxanes or (poly)silazanes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/60—Aspects relating to the preparation, properties or mechanical treatment of green bodies or pre-forms
    • C04B2235/616—Liquid infiltration of green bodies or pre-forms
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/65—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes
    • C04B2235/656—Aspects relating to heat treatments of ceramic bodies such as green ceramics or pre-sintered ceramics, e.g. burning, sintering or melting processes characterised by specific heating conditions during heat treatment
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
    • C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient

Abstract

A kind of cooling fin for laptop of the invention, it is respectively coated graphite modified dose on the upper and lower surface of Kapton and obtains treated Kapton, treated, and Kapton is made of Kapton, the first coat and the second coat；Will treated Kapton under inert gas protection, rise to 240 DEG C ~ 260 DEG C from room temperature, 480 DEG C ~ 500 DEG C risen to after heat preservation, be warming up to 780 DEG C ~ 820 DEG C after heat preservation again, 1200 DEG C of postcoolings are risen to after heat preservation, to obtain the carbonized film of pre-burned；The graphite modified dose of group by following parts by weight is grouped as：20 ~ 25 parts of benzophenone tetracarboxylic dianhydride, 12 ~ 18 parts of pyromellitic acid anhydride, 20 ~ 28 parts of diaminodiphenylmethane, 20 ~ 25 parts of dimethylformamide, to obtain the graphite film of main firing.The present invention improves crystallinity simultaneously, also overcome be heat-shrinked it is excessive caused by it is uneven, improve graphite linings biaxial tension performance.

Description

Cooling fin for laptop
Technical field
The present invention relates to a kind of cooling fins for laptop, belong to graphite flake technical field.
Background technology
With modern microelectronic technology high speed development, electronic equipment（Such as laptop, mobile phone, tablet computer）Increasingly Become ultra-thin, light, this structure makes electronic equipment internal power density significantly improve, and generated heat is not easy in operation It is discharged, is easy to accumulate rapidly and form high temperature.On the other hand, high temperature can reduce the performance of electronic equipment, reliability and use the longevity Life.Therefore, Current electronic industry proposes increasingly higher demands for the heat sink material as heat control system core component, urgently It needs a kind of high-efficiency heat conduction, light material to transfer heat away from rapidly, ensures electronic equipment normal operation.
Kapton is mostly used for flexible PCB in the prior art, is obtained using polyimide film sintered although having Graphite heat radiation fin, to be covered on heat source, but be constrained to Kapton product quality and performances the good and the bad not Together, the performance of the two-sided pad pasting heat dissipation performance of heat dissipation has been influenced, there are following technical problems：It radiates uneven, adhesive tape easily occurs Hot-spot, the heat dissipation performance that improves product is unstable, reliability performance is poor, is unfavorable for product quality management control, influences product Competitiveness.
Invention content
Objects of the present invention are to provide a kind of cooling fin for laptop, the cooling fin which obtains Heat conductivility is both vertically and horizontally being improved, hot-spot is avoided, is realizing the same of the uniformity of heat conductivility When, heat dissipation performance stability, the reliability of product are improved, the cost of product is greatly reduced.
To achieve the above object of the invention, the technical solution adopted by the present invention is：A kind of cooling fin for laptop, The graphite heat radiation fin is obtained by following steps：
Step 1: being respectively coated graphite modified dose on the upper and lower surface of Kapton obtains that treated that polyimides is thin Film, treated, and Kapton is made of Kapton, the first coat and the second coat；
The graphite modified dose of group by following parts by weight is grouped as：
20 ~ 25 parts of benzophenone tetracarboxylic dianhydride,
12 ~ 18 parts of pyromellitic acid anhydride,
20 ~ 28 parts of diaminodiphenylmethane,
20 ~ 25 parts of dimethylformamide,
8 parts of N-Methyl pyrrolidone,
2.5 parts of ethylene glycol,
3 parts of dimethyl silicone polymer,
1.4 parts of dibutyl phthalate；
Step 2: will treated Kapton under inert gas protection, rise to 240 DEG C ~ 260 DEG C from room temperature, heat preservation After rise to 480 DEG C ~ 500 DEG C, 780 DEG C ~ 820 DEG C are warming up to after heat preservation again, 1200 DEG C of postcoolings are risen to after heat preservation, it is pre- to obtain The carbonized film of firing；
Step 3: carbonized film is warming up to 2350 DEG C ~ 2450 DEG C, keep the temperature, then be warming up to 2850 DEG C ~ 2950 DEG C postcoolings, to Obtain the graphite film of main firing；
Step 4: then rolling the graphite film of the main firing obtained by step 3 to obtain the heat conduction graphite patch.
Since above-mentioned technical proposal is used, the present invention has following advantages and effect compared with prior art：
1, the present invention is used for the cooling fin of laptop, and graphite linings are coated with one layer of graphite by upper and lower surface and change in structure Property agent Kapton be prepared, improve in heat conductivility both vertically and horizontally, avoid adhesive tape local Overheat, realizes the uniformity of adhesive tape heat conductivility；Secondly, it is located at graphite modified dose of Kapton surface by hexichol Ketone tetracid dianhydride, pyromellitic acid anhydride, diaminodiphenylmethane, dimethylformamide, ethylene glycol, dimethyl silicone polymer Composition is coated on Kapton, and the pin hole being filled in heating process improves crystallinity simultaneously, also overcomes heat Shrink it is excessive caused by it is uneven, improve graphite linings biaxial tension performance.
2, the present invention is used for the cooling fin of laptop, is located at graphite modified dose of Kapton surface by two Benzophenone tetracid dianhydride, pyromellitic acid anhydride, diaminodiphenylmethane, dimethylformamide, N-Methyl pyrrolidone, second two Alcohol, dimethyl silicone polymer composition, reduce azeotropic point and smooth boiling using dimethylformamide, N-Methyl pyrrolidone Point area improves the flatness and flexibility of final products film forming；；Secondly, dimethylformamide, N-Methyl pyrrolidone and neighbour Dibatyl phithalate Kapton surface, prevents bubble from generating, and is more advantageous to the tiny needle of filled polyimide film Hole improves the uniformity of heat dissipation patch heat conductivility.
3, the present invention is used for the cooling fin of laptop, increases calendering step between the carbonized film and graphitization of pre-burned Suddenly, and after re-forming heat conduction graphite patch roll again, the volume contraction for avoiding fold and being graphitized in sintering process carries High compactness and crystallinity, further improve in heat conductivility both vertically and horizontally.
Specific implementation mode
With reference to embodiment, the invention will be further described：
Embodiment：A kind of cooling fin for laptop, the graphite heat radiation fin are obtained by following steps：
Step 1: being respectively coated graphite modified dose on the upper and lower surface of Kapton obtains that treated that polyimides is thin Film, treated, and Kapton is made of Kapton, the first coat and the second coat；
The graphite modified dose of group by following parts by weight is grouped as：
20 parts of benzophenone tetracarboxylic dianhydride,
12 parts of pyromellitic acid anhydride,
28 parts of diaminodiphenylmethane,
25 parts of dimethylformamide,
8 parts of N-Methyl pyrrolidone,
2.5 parts of ethylene glycol,
3 parts of dimethyl silicone polymer,
1.4 parts of dibutyl phthalate；
Step 2: will treated Kapton under inert gas protection, rise to 240 DEG C ~ 260 DEG C from room temperature, heat preservation After rise to 480 DEG C ~ 500 DEG C, 780 DEG C ~ 820 DEG C are warming up to after heat preservation again, 1200 DEG C of postcoolings are risen to after heat preservation, it is pre- to obtain The carbonized film of firing；
Step 3: carbonized film is warming up to 2350 DEG C ~ 2450 DEG C, keep the temperature, then be warming up to 2850 DEG C ~ 2950 DEG C postcoolings, to Obtain the graphite film of main firing；
Step 4: then rolling the graphite film of the main firing obtained by step 3 to obtain the heat conduction graphite patch.
Above-mentioned graphite modified dose of viscosity is 30000 ~ 48000CP.
A kind of manufacturing process of above-mentioned graphite heat radiation fin, includes the following steps：
Step 1: being respectively coated graphite modified dose on the upper and lower surface of Kapton obtains that treated that polyimides is thin Film, treated, and Kapton is made of Kapton, the first coat and the second coat, described graphite modified The viscosity of agent is 30000 ~ 48000CP；
The graphite modified dose of group by following parts by weight is grouped as：
20 parts of benzophenone tetracarboxylic dianhydride,
12 parts of pyromellitic acid anhydride,
28 parts of diaminodiphenylmethane,
25 parts of dimethylformamide,
8 parts of N-Methyl pyrrolidone,
2.5 parts of ethylene glycol,
3 parts of dimethyl silicone polymer,
1.4 parts of dibutyl phthalate；
Step 2: will treated Kapton under inert gas protection, rise to 240 DEG C ~ 260 DEG C from room temperature, heat preservation After rise to 480 DEG C ~ 500 DEG C, 780 DEG C ~ 820 DEG C are warming up to after heat preservation again, 1200 DEG C of postcoolings are risen to after heat preservation, it is pre- to obtain The carbonized film of firing；
Step 3: carbonized film is warming up to 2350 DEG C ~ 2450 DEG C, keep the temperature, then be warming up to 2850 DEG C ~ 2950 DEG C postcoolings, to Obtain the graphite film of main firing；
Step 4: then rolling the graphite film of the main firing obtained by step 3 to obtain the heat conduction graphite patch.
When using above-mentioned manufacturing process, obtains and be coated with by upper and lower surface for graphite linings in graphite heat radiation fin its structure One layer graphite modified dose of Kapton is prepared, and improves in heat conductivility both vertically and horizontally, keeps away Exempt from adhesive tape hot-spot, realizes the uniformity of adhesive tape heat conductivility；Secondly, the graphite for being located at Kapton surface changes Property agent is by benzophenone tetracarboxylic dianhydride, pyromellitic acid anhydride, diaminodiphenylmethane, dimethylformamide, ethylene glycol, poly- two Methylsiloxane forms, and is coated on Kapton, and the pin hole being filled in heating process improves crystallinity simultaneously, It is excessive caused uneven to also overcome thermal contraction, improves graphite linings biaxial tension performance, also reduces azeotropic point and put down Sliding boiling point area improves the flatness and flexibility of final products film forming；Again, Kapton surface changes with graphite Property agent, improve graphite linings and heat conduction adhesive layer heat conductivility in two-sided pad pasting, and the pre-burned is rolled using calender Carbonized film, the volume contraction for avoiding fold and being graphitized in sintering process, improves compactness and crystallinity, further increases In heat conductivility both vertically and horizontally.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.

Claims (1)

1. a kind of cooling fin for laptop, it is characterised in that：The laptop cooling fin passes through following step It is rapid to obtain：
Step 1: being respectively coated graphite modified dose on the upper and lower surface of Kapton obtains that treated that polyimides is thin Film, treated, and Kapton is made of Kapton, the first coat and the second coat；It is described graphite modified The viscosity of agent is 30000 ~ 48000CP；
The graphite modified dose of group by following parts by weight is grouped as：
20 ~ 25 parts of benzophenone tetracarboxylic dianhydride,
12 ~ 18 parts of pyromellitic acid anhydride,
20 ~ 28 parts of diaminodiphenylmethane,
20 ~ 25 parts of dimethylformamide,
8 parts of N-Methyl pyrrolidone,
2.5 parts of ethylene glycol,
3 parts of dimethyl silicone polymer,
1.4 parts of dibutyl phthalate；
Step 2: will treated Kapton under inert gas protection, rise to 240 DEG C ~ 260 DEG C from room temperature, heat preservation After rise to 480 DEG C ~ 500 DEG C, 780 DEG C ~ 820 DEG C are warming up to after heat preservation again, 1200 DEG C of postcoolings are risen to after heat preservation, it is pre- to obtain The carbonized film of firing；
Step 3: carbonized film is warming up to 2350 DEG C ~ 2450 DEG C, keep the temperature, then be warming up to 2850 DEG C ~ 2950 DEG C postcoolings, to Obtain the graphite film of main firing；
Step 4: then rolling the graphite film of the main firing obtained by step 3 to obtain the heat conduction graphite patch.
CN201710665192.1A 2014-01-26 2014-01-26 Cooling fin for laptop Pending CN108646885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710665192.1A CN108646885A (en) 2014-01-26 2014-01-26 Cooling fin for laptop

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710665192.1A CN108646885A (en) 2014-01-26 2014-01-26 Cooling fin for laptop
CN201410036320.2A CN104812204B (en) 2014-01-26 2014-01-26 Manufacturing process for graphite heat radiation fin

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201410036320.2A Division CN104812204B (en) 2014-01-26 2014-01-26 Manufacturing process for graphite heat radiation fin

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Publication Number Publication Date
CN108646885A true CN108646885A (en) 2018-10-12

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ID=53696526

Family Applications (11)

Application Number Title Priority Date Filing Date
CN201710665192.1A Pending CN108646885A (en) 2014-01-26 2014-01-26 Cooling fin for laptop
CN201710095543.XA Active CN107043108B (en) 2014-01-26 2014-01-26 Cooling fin manufacturing process for smart phone
CN201710095545.9A Pending CN107043257A (en) 2014-01-26 2014-01-26 Manufacture method for the fin of computer radiator
CN201710665173.9A Pending CN107573072A (en) 2014-01-26 2014-01-26 The production method of high compactness fin
CN201710095575.XA Pending CN107043255A (en) 2014-01-26 2014-01-26 The manufacturing process of fin
CN201710095544.4A Pending CN107043256A (en) 2014-01-26 2014-01-26 Manufacturing process for the paster that radiates
CN201710665185.1A Pending CN108206164A (en) 2014-01-26 2014-01-26 For the cooling fin of microelectronics heat dissipation
CN201710095581.5A Pending CN107043258A (en) 2014-01-26 2014-01-26 The manufacture method of notebook computer fin
CN201410036320.2A Active CN104812204B (en) 2014-01-26 2014-01-26 Manufacturing process for graphite heat radiation fin
CN201710665183.2A Pending CN107986789A (en) 2014-01-26 2014-01-26 Smart mobile phone heat dissipation film
CN201710665184.7A Pending CN108218428A (en) 2014-01-26 2014-01-26 For the manufacturing method of tablet computer soaking patch

Family Applications After (10)

Application Number Title Priority Date Filing Date
CN201710095543.XA Active CN107043108B (en) 2014-01-26 2014-01-26 Cooling fin manufacturing process for smart phone
CN201710095545.9A Pending CN107043257A (en) 2014-01-26 2014-01-26 Manufacture method for the fin of computer radiator
CN201710665173.9A Pending CN107573072A (en) 2014-01-26 2014-01-26 The production method of high compactness fin
CN201710095575.XA Pending CN107043255A (en) 2014-01-26 2014-01-26 The manufacturing process of fin
CN201710095544.4A Pending CN107043256A (en) 2014-01-26 2014-01-26 Manufacturing process for the paster that radiates
CN201710665185.1A Pending CN108206164A (en) 2014-01-26 2014-01-26 For the cooling fin of microelectronics heat dissipation
CN201710095581.5A Pending CN107043258A (en) 2014-01-26 2014-01-26 The manufacture method of notebook computer fin
CN201410036320.2A Active CN104812204B (en) 2014-01-26 2014-01-26 Manufacturing process for graphite heat radiation fin
CN201710665183.2A Pending CN107986789A (en) 2014-01-26 2014-01-26 Smart mobile phone heat dissipation film
CN201710665184.7A Pending CN108218428A (en) 2014-01-26 2014-01-26 For the manufacturing method of tablet computer soaking patch

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