CN115476569A - Graphite patch capable of uniformly dissipating heat and processing technology thereof - Google Patents

Graphite patch capable of uniformly dissipating heat and processing technology thereof Download PDF

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Publication number
CN115476569A
CN115476569A CN202211112767.4A CN202211112767A CN115476569A CN 115476569 A CN115476569 A CN 115476569A CN 202211112767 A CN202211112767 A CN 202211112767A CN 115476569 A CN115476569 A CN 115476569A
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CN
China
Prior art keywords
layer
release material
patch
graphite
material layer
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Withdrawn
Application number
CN202211112767.4A
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Chinese (zh)
Inventor
程展
周浩
周仁娟
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Jiangsu Jinlongshun Electronic Technology Co ltd
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Jiangsu Jinlongshun Electronic Technology Co ltd
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Priority to CN202211112767.4A priority Critical patent/CN115476569A/en
Publication of CN115476569A publication Critical patent/CN115476569A/en
Withdrawn legal-status Critical Current

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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
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • 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
    • B32B43/00—Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
    • B32B43/003—Cutting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/10—Mechanisms in which power is applied to web-roll spindle
    • B65H18/106—Mechanisms in which power is applied to web-roll spindle for several juxtaposed strips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H20/00—Advancing webs
    • B65H20/06—Advancing webs by friction band
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • B65H35/06—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with blade, e.g. shear-blade, cutters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H37/00—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
    • B65H37/04—Article or web delivery apparatus incorporating devices for performing specified auxiliary operations for securing together articles or webs, e.g. by adhesive, stitching or stapling
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/11—Dimensional aspect of article or web
    • B65H2701/113—Size
    • B65H2701/1133—Size of webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/17—Nature of material
    • B65H2701/172—Composite material
    • B65H2701/1722—Composite material including layer with adhesive properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/10—Presence of inorganic materials

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)

Abstract

The invention discloses a graphite patch with uniform heat dissipation and a processing technology thereof, and relates to the technical field of graphite patch processing. The contact area of paster layer and the first type material layer of leaving in the graphite paster is less in this application, can be when using, conveniently with paster layer and the first type material layer of leaving separate to leave type material layer and overburden through the second, can protect it after paster layer production, and the second is convenient from the split of type material layer and overburden, and when the split, does not lead to the fact the influence to the paster layer.

Description

Graphite patch capable of uniformly dissipating heat and processing technology thereof
Technical Field
The invention relates to the technical field of graphite patch processing, in particular to a graphite patch with uniform heat dissipation and a processing technology thereof.
Background
The graphite flake is a brand-new heat-conducting and heat-dissipating material, conducts heat uniformly along two directions, shields a heat source and components and improves the performance of consumer electronic products; in processing the graphite sheet, the graphite sheet is usually processed into a block shape, combined with a separate material layer, and stored in a roll.
Through search, chinese patent discloses a high-flexibility heat dissipation film (publication number: CN 10597979750B), wherein a first coating layer of the heat dissipation film is positioned on the upper surface of a polyimide film; the first coating layer is formed by a graphite modifier coated on the upper surface of the polyimide film, and the graphite modifier is composed of the following components in parts by weight: 25 parts of benzophenone tetracarboxylic dianhydride, 16 parts of pyromellitic dianhydride, 28 parts of diaminodiphenylmethane, 23 parts of dimethylformamide, 8.5 parts of N-methylpyrrolidone, 2 parts of ethylene glycol, 3 parts of polydimethylsiloxane and 1.5 parts of dibutyl phthalate; coating a graphite modifier on the upper surface of the polyimide film to obtain a treated polyimide film; and heating the treated polyimide film to 1200 ℃, and cooling to obtain the pre-fired carbonized film.
In prior art, the graphite flake is when assembling with the parting type material, and the area of viscidity laminating is great, leads to the difficult separation when using to at the graphite flake after machine-shaping, need assemble with the parting type material fast, in order to improve machining efficiency.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a graphite patch with uniform heat dissipation and a processing technology thereof.
In order to achieve the purpose, the invention provides the following technical scheme: a processing technology of a graphite patch with uniform heat dissipation comprises the following steps:
the method comprises the following steps: preparing a carbonized film at a high temperature, inputting the carbonized film into a calendering box in assembly equipment, and calendering to obtain graphite sheets;
step two: conveying the graphite flakes into a processing box for dicing to obtain a chip layer, and adhering the part on the lower side of the chip layer with the first release material layer;
step three: processing the two groups of second release material layers to two sides of the patch layer; one end of the second release material layer covers the lower side of the first release material layer, and the other end of the second release material layer extends to the outer side of the edge of the patch layer;
step four: covering the covering layer to the outer side of the patch layer; after covering, adhering and assembling two ends of the covering layer with the second release material layer respectively to obtain a graphite patch;
step five: the graphite paster after the equipment carries out the rolling based on winding mechanism.
Furthermore, a first adhesive layer is arranged on the upper side of the first release material layer, and the area ratio of the adhesive layer to the first release material layer is 85-100%.
Further, second adhesive layers are arranged at two ends of the upper surface of the second release material layer;
the two groups of second adhesive layers are not in contact with the patch layer;
wherein, a set of viscose layer is connected with the first downside of leaving the type material layer, and another group of viscose layer extends to the outside on SMD layer, and is connected with the overburden.
Further, the assembling equipment comprises a rolling box, wherein a processing box is arranged on one side of the rolling box, a winding mechanism is arranged on one side of the processing box, and a conveying mechanism extending into the processing box is arranged in the rolling box; after being rolled by the rolling box, the graphite flake is conveyed to the inside of the processing box by the conveying mechanism
A supporting table is arranged on one side, close to the conveying mechanism, in the processing box, and a cutting mechanism, a first rotating roller, a second rotating roller, a first winding roller and a third rotating roller are sequentially arranged on the upper side of the supporting table in the processing box;
the cutting mechanism, the first rotating roller, the second rotating roller and the third rotating roller are connected with the top end inside the processing box through a first air cylinder; the cutting mechanism and the first rotating roller are arranged on the upper side of the support platform;
two groups of second supporting rollers, an assembling mechanism and a first supporting roller are arranged on one side, close to the supporting table, in the processing box, and second air cylinders which are vertically distributed are arranged between the first supporting roller and the processing box;
one group of second supporting rollers are positioned on one side of the supporting platform, and the other group of second supporting rollers are positioned on the lower side of the second rotating rollers;
a second winding roller and two groups of third winding rollers are arranged at the bottom end in the processing box, and the second winding roller is arranged on one side of the supporting table; two groups of third wind-up rollers are arranged on one side of the assembling mechanism;
and a plurality of third supporting rollers are arranged between the assembling mechanism and the first supporting rollers.
Further, the use method of the assembling device comprises the following steps:
s1: the carbonized film is calendered by a calendering box to obtain a graphite flake, and the graphite flake moves to the upper side of the supporting table based on the conveying mechanism to be cut;
s2: the first release material layer is based on two groups of second supporting rollers, sequentially passes through the assembling mechanism and the first supporting rollers, and is in contact with the winding mechanism;
s3: after the graphite flake is contacted with the first rotating roller, the graphite flake is cut off by a cutting mechanism to obtain a paster layer;
s4: the chip mounting layer moves to the upper side of the first release material layer based on the first rotating roller and is pressurized when passing through the second rotating roller;
s5: when the chip mounting layer passes through the assembling mechanism, the two groups of second release material layers are adhered to the lower side of the first release material layer, and one ends of the two groups of second release material layers respectively extend to one side of the chip mounting layer;
s6: when the patch layer passes through the third rotating roller, the third rotating roller presses the covering layer to the upper side of the patch layer from the first winding roller, and the two ends of the covering layer are respectively bonded with one ends of the two groups of second release material layers extending to the patch layer.
Furthermore, the assembling mechanism comprises at least one group of third air cylinders, a connecting frame is mounted at the top ends of the third air cylinders, and two groups of fourth supporting rollers are rotatably connected inside the connecting frame;
the two groups of fourth supporting rollers are respectively positioned above one sides of the two groups of third winding rollers, the second release material layer is bent to the upper side of the second release material layer from the bottom of the corresponding fourth supporting roller, and the second release material layer and the first release material layer are adhered and assembled under the pressurization of the corresponding fourth supporting roller.
Furthermore, the support table comprises a plate body, and inclined planes are arranged at two ends of the plate body facing the conveying mechanism and the second winding roller;
the plate body is internally provided with a groove part at the position right below the output end of the cutting mechanism.
The invention also discloses a graphite patch with uniform heat dissipation, which comprises a patch layer, wherein the lower side of the patch layer is connected with a first release material layer in an adhering manner, and two ends of the lower side of the first release material layer are connected with a second release material layer in an adhering manner;
one ends of the two groups of second release material layers, which are far away from the first release material layer, extend to the outer side of the patch layer;
the two groups of second release material layers are connected with a covering layer in an adhering mode at the upper side of one end, far away from the patch layer, of the release material layer.
Further, the ratio of the width of the patch layer to the width of the first release material layer is 50-70%.
Compared with the prior art, the invention has the following beneficial effects:
according to the graphite paster, the contact area between the paster layer and the first release material layer in the graphite paster is small, the paster layer can be conveniently separated from the first release material layer when the graphite paster is used, the second release material layer and the covering layer can be protected after the paster layer is produced, the second release material layer and the covering layer are convenient to disassemble, and the influence on the paster layer is avoided when the second release material layer and the covering layer are disassembled;
on the other hand, the equipment in this application can be when the paster layer passes through, with first type material layer, second type material layer and the outside of overburden adhesion equipment to the paster layer, through the integration setting, can improve the packaging efficiency of graphite paster.
Drawings
FIG. 1 is a schematic structural diagram of an assembly apparatus in a process for manufacturing a graphite patch with uniform heat dissipation;
FIG. 2 is a side cross-sectional view of a process kit in the assembly apparatus of the present invention;
FIG. 3 is a partial cross-sectional front view of a process kit in the assembly apparatus of the present invention;
FIG. 4 is a partial perspective view of a support base in the assembly apparatus of the present invention;
FIG. 5 is a schematic structural view of a graphite patch with uniform heat dissipation according to the present invention;
1. a calendering box; 2. a processing box; 3. a winding mechanism; 4. a transfer mechanism; 5. a support table; 6. a cutting mechanism; 7. a first rotating roller; 8. a second rotating roller; 9. a first wind-up roll; 10. a third rotating roller; 11. a first cylinder; 12. a second wind-up roll; 13. an assembly mechanism; 14. a third wind-up roll; 15. a first support roller; 16. a second cylinder; 17. a second support roller; 18. a third support roller; 131. a third cylinder; 132. a connecting frame; 133. a fourth support roller; 51. a plate body; 52. a bevel; 53. a recessed portion; 110. a patch layer; 120. a first release material layer; 130. a second release material layer; 140. and (4) a covering layer.
Detailed Description
Referring to fig. 1 to 4, an assembling device for a processing technology of a graphite patch with uniform heat dissipation comprises a rolling box 1, a processing box 2 is installed on one side of the rolling box 1, a winding mechanism 3 is installed on one side of the processing box 2, and a conveying mechanism 4 extending into the processing box 2 is installed inside the rolling box 1; the graphite flake is delivered to the interior of the processing box 2 through the delivery mechanism 4 after being calendered by the calendering box 1
A support table 5 is arranged on one side, close to the conveying mechanism 4, inside the processing box 2, and a cutting mechanism 6, a first rotating roller 7, a second rotating roller 8, a first winding roller 9 and a third rotating roller 10 are sequentially arranged on the upper side of the support table 5 inside the processing box 2;
the cutting mechanism 6, the first rotating roller 7, the second rotating roller 8 and the third rotating roller 10 are connected with the top end inside the processing box 2 through a first cylinder 11; and the cutting mechanism 6 and the first rotating roller 7 are provided on the upper side of the support table 5;
two groups of second supporting rollers 17, an assembling mechanism 13 and a first supporting roller 15 are arranged on one side, close to the supporting table 5, in the processing box 2, and second air cylinders 16 which are vertically distributed are arranged between the first supporting roller 15 and the processing box 2;
one set of second support rollers 17 is located at one side of the support table 5, and the other set of second support rollers 17 is located at the lower side of the second rotating roller 8;
a second winding roller 12 and two groups of third winding rollers 14 are mounted at the bottom end inside the processing box 2, and the second winding roller 12 is arranged on one side of the support table 5 and used for winding the first release material layer 120; two groups of third winding rollers 14 are arranged on one side of the assembling mechanism 13 and are used for winding the second release material layer 130;
a plurality of third support rollers 18 are installed between the assembling mechanism 13 and the first support roller 15; after the two sets of second release material layers 130 are adhered to the first release material layer 120, the two sets of second release material layers 130 are supported from the bottom.
Referring to fig. 3, the assembling mechanism 13 includes at least one set of third cylinders 131, a connecting frame 132 is installed at the top end of the third cylinders 131, and two sets of fourth supporting rollers 133 are rotatably connected inside the connecting frame 132;
the two sets of fourth supporting rollers 133 are respectively located above one side of the two sets of third wind-up rollers 14, and the second release material layer 130 is bent from the bottom of the corresponding fourth supporting roller 133 to the upper side thereof, and is adhered and assembled with the first release material layer 120 under the pressurization of the corresponding fourth supporting roller 133.
Referring to fig. 4, the supporting table 5 includes a plate body 51, and both ends of the plate body 51 facing the conveying mechanism 4 and the second wind-up roll 12 are provided with inclined planes 52 for respectively entering and exiting graphite flakes and graphite patches;
a groove part 53 is arranged in the plate body 51 and is positioned right below the output end of the cutting mechanism 6; when the graphite sheet is cut by the cutting mechanism 6, the output end thereof can extend to the inside of the groove portion 53.
Referring to fig. 5, the graphite patch with uniform heat dissipation includes a patch layer 110, a first release material layer 120 is adhered and connected to a lower side of the patch layer 110, and a second release material layer 130 is adhered and connected to both ends of a lower side of the first release material layer 120;
one ends of the two sets of second release material layers 130 far away from the first release material layer 120 extend to the outer side of the chip layer 110;
the two sets of second release material layers 130 are adhered to and connected with a covering layer 140 at the upper side of the end far away from the patch layer 110.
The ratio of the width of the patch layer 110 to the width of the first release material layer 120 is 50-70%, preferably, the ratio of the width is 65%.
The first adhesive layer is disposed on the upper side of the first release material layer 120, and the area ratio of the first adhesive layer to the first release material layer 120 is 85-100%, preferably 95%, which is the area covered by the first release material layer 120 and the corresponding patch layer 110.
The working principle is as follows:
preparing a carbonized film at a high temperature, inputting the carbonized film into a calendering box 1 in assembly equipment, and calendering to obtain graphite sheets;
meanwhile, the first release material layer 120 in the second wind-up roll 12 moves in a horizontal state on one side of the support table 5 based on the two groups of second support rolls 17, the assembling mechanism 13, the third support roll 18 and the first support roll 15;
meanwhile, the second release material layer 130 in the two groups of third wind-up rolls 14 moves at two ends of the lower side of the first release material layer 120 under the limit of the fourth supporting roll 133 in the assembling mechanism 13;
the covering layer 140 in the first winding roller 9 moves along the upper side of the chip layer 110 under the limit of the third rotating roller 10;
the graphite flake moves to the upper side of the supporting table 5 based on the conveying mechanism 4 and contacts with the first rotating roller 7, meanwhile, the cutting mechanism 6 descends based on the corresponding first air cylinder 11 to cut the graphite flake to obtain a chip layer 110, and the cut chip layer 110 moves to the upper side of the first release material layer 120 based on the first rotating roller 7;
when the chip layer 110 passes through the second rotating roller 8, the second rotating roller 8 descends based on the corresponding first air cylinder 11, and the first release material layer 120 and the chip layer 110 are pressurized by matching with a group of second supporting rollers 17 on the lower side of the second rotating roller;
when the chip mounting layer 110 passes through the assembling mechanism 13, the third cylinder 131 in the assembling mechanism 13 is started to lift the two groups of fourth supporting rollers 133 to the lower side of the first release material layer 120, the two groups of second release material layers 130 can be adhered to the lower side of the first release material layer 120, and one ends of the two groups of second release material layers 130 respectively extend to one side of the chip mounting layer 110;
when the chip mounting layer 110 passes through the third rotating roller 10, the third rotating roller 10 descends based on the corresponding first air cylinder 11, the third rotating roller 10 presses the covering layer 140 from the first winding roller 9 to the upper side of the chip mounting layer 110, and two ends of the covering layer 140 are respectively bonded with one end of the two groups of second release material layers 130 extending to the chip mounting layer 110, so that a graphite chip is obtained;
the graphite paster after the equipment carries out the rolling based on winding mechanism 3.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the present template may be made by those skilled in the art without departing from the principles of the present invention.

Claims (7)

1. The utility model provides an even heat dissipation graphite paster, includes paster layer (110), its characterized in that, the downside adhesion on paster layer (110) is connected with first type material layer (120), first all the adhesion in both ends of type material layer (120) downside is connected with the second and leaves type material layer (130).
2. The graphite patch as claimed in claim 1, wherein the ends of the two sets of second release material layers (130) far away from the first release material layer (120) extend to the outside of the patch layer (110);
the upper sides of the two groups of second release material layers (130) far away from one end of the patch layer (110) are connected with a covering layer (140) in an adhering mode.
3. The graphite patch as claimed in claim 1, wherein the ratio of the width of the patch layer (110) to the width of the first release material layer (120) is 50-70%.
4. The processing technology of the uniform heat dissipation graphite patch as claimed in claim 2, characterized by comprising the following steps:
the method comprises the following steps: preparing a carbonized film at a high temperature, inputting the carbonized film into a calendering box (1) in assembly equipment, and calendering to obtain graphite sheets;
step two: conveying the graphite sheets to a processing box (2) for dicing to obtain a chip layer (110), and adhering the part on the lower side of the chip layer (110) and a first release material layer (120);
step three: processing the two groups of second release material layers (130) to two sides of the patch layer (110); one end of the second release material layer (130) covers the lower side of the first release material layer (120), and the other end of the second release material layer (130) extends to the outer side of the edge of the patch layer (110);
step four: covering a covering layer (140) to the outer side of the patch layer (110); after covering, the two ends of the covering layer (140) are respectively adhered and assembled with the second release material layer (130) to obtain a graphite patch;
step five: the graphite paster after assembling is based on winding mechanism (3) and is carried out the rolling.
5. The processing technology of the graphite patch with uniform heat dissipation as claimed in claim 4, wherein a first adhesive layer is disposed on the upper side of the first release material layer (120), and the area ratio of the first adhesive layer to the first release material layer (120) is 85-100%.
6. The processing technology of the graphite patch with uniform heat dissipation as claimed in claim 4, wherein the second adhesive layers are arranged at two ends of the upper surface of the second release material layer (130);
one group of adhesive layers are connected with the lower side of the first release material layer (120), and the other group of adhesive layers extend to the outer side of the patch layer (110) and are connected with the covering layer (140).
7. The processing technology of a uniform heat dissipation graphite patch as claimed in claim 4, wherein the use method of the assembly equipment comprises the following steps:
s1: the carbonized film is calendered by a calendering box (1) to obtain a graphite sheet, and the graphite sheet moves to the upper side of a supporting table (5) based on a conveying mechanism (4) to be cut;
s2: the first release material layer (120) is based on two groups of second supporting rollers (17), sequentially passes through the assembling mechanism (13) and the first supporting roller (15), and is in contact with the winding mechanism (3);
s3: after the graphite sheet is contacted with the first rotating roller (7), the graphite sheet is cut off by the cutting mechanism (6) to obtain a chip layer (110);
s4: the patch layer (110) moves to the upper side of the first release material layer (120) based on the first rotating roller (7) and is pressurized when passing through the second rotating roller (8);
s5: when the patch layer (110) passes through the assembling mechanism (13), the two groups of second release material layers (130) are adhered to the lower side of the first release material layer (120), and one ends of the two groups of second release material layers (130) respectively extend to one side of the patch layer (110);
s6: when the patch layer (110) passes through the third rotating roller (10), the third rotating roller (10) presses the covering layer (140) to the upper side of the patch layer (110) from the first winding roller (9), and two ends of the covering layer (140) are respectively bonded with one end, extending to the patch layer (110), of the two groups of second release material layers (130).
CN202211112767.4A 2022-09-14 2022-09-14 Graphite patch capable of uniformly dissipating heat and processing technology thereof Withdrawn CN115476569A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211112767.4A CN115476569A (en) 2022-09-14 2022-09-14 Graphite patch capable of uniformly dissipating heat and processing technology thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211112767.4A CN115476569A (en) 2022-09-14 2022-09-14 Graphite patch capable of uniformly dissipating heat and processing technology thereof

Publications (1)

Publication Number Publication Date
CN115476569A true CN115476569A (en) 2022-12-16

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CN202211112767.4A Withdrawn CN115476569A (en) 2022-09-14 2022-09-14 Graphite patch capable of uniformly dissipating heat and processing technology thereof

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