CN220808593U - Two-dimensional filler orientation equipment applied to heat conduction gasket - Google Patents
Two-dimensional filler orientation equipment applied to heat conduction gasket Download PDFInfo
- Publication number
- CN220808593U CN220808593U CN202322432581.3U CN202322432581U CN220808593U CN 220808593 U CN220808593 U CN 220808593U CN 202322432581 U CN202322432581 U CN 202322432581U CN 220808593 U CN220808593 U CN 220808593U
- Authority
- CN
- China
- Prior art keywords
- orientation
- pipe
- discharging pipe
- dimensional
- extrusion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000945 filler Substances 0.000 title claims abstract description 35
- 239000000463 material Substances 0.000 claims abstract description 86
- 238000007599 discharging Methods 0.000 claims abstract description 51
- 238000001125 extrusion Methods 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000012856 packing Methods 0.000 claims abstract description 12
- 238000010079 rubber tapping Methods 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 11
- 239000000741 silica gel Substances 0.000 abstract description 11
- 229910002027 silica gel Inorganic materials 0.000 abstract description 11
- 239000000203 mixture Substances 0.000 abstract description 10
- 230000009467 reduction Effects 0.000 abstract description 7
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 24
- 229910052582 BN Inorganic materials 0.000 description 23
- 238000000034 method Methods 0.000 description 13
- 238000005520 cutting process Methods 0.000 description 11
- 230000000052 comparative effect Effects 0.000 description 9
- 238000004513 sizing Methods 0.000 description 8
- 238000005096 rolling process Methods 0.000 description 6
- 229920000642 polymer Polymers 0.000 description 5
- 238000012360 testing method Methods 0.000 description 4
- 239000002699 waste material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 229910021389 graphene Inorganic materials 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
- 239000004917 carbon fiber Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 241000276425 Xiphophorus maculatus Species 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000011231 conductive filler Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000013007 heat curing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Landscapes
- Sealing Material Composition (AREA)
Abstract
The utility model relates to the technical field of heat-conducting silica gel manufacturing equipment, in particular to two-dimensional packing orientation equipment applied to a heat-conducting gasket, which comprises a material pipe and a material discharging pipe which are sequentially connected, wherein an extrusion mechanism is in sliding connection in the material pipe, the cross section area of the material discharging pipe is gradually reduced from top to bottom, a pre-orientation joint is connected between the material pipe and the material discharging pipe, extrusion cavities with N trapezoid cross sections are arranged in the pre-orientation joint at intervals, and the material discharging hole of the material discharging pipe is rectangular. The two-dimensional filler orientation equipment provided by the utility model skillfully uses the pre-orientation joint and the conical discharging pipe, improves the orientation arrangement effect of the two-dimensional filler in the silica gel mixture, has the advantages of simple structure, convenience in operation, high orientation rate, capability of improving the heat conductivity of the heat conduction gasket, capability of improving productivity, reduction of production and manufacturing cost and production effect, and is suitable for popularization.
Description
Technical Field
The utility model relates to the technical field of heat-conducting silica gel manufacturing equipment, in particular to two-dimensional filler orientation equipment applied to a heat-conducting gasket.
Background
The performance of electronic components is degraded or damaged by overheating, and thus cooling of electronic components is an important issue. The heat conductive interface material used between the heating element and the heat radiator is often required to have excellent heat conductive properties.
The polymer has the advantages of light weight, flexibility, low cost, easy processing and forming and the like, and is widely applied to the aspect of heat management of modern electronic products. However, the extremely low intrinsic thermal conductivity [ 0.5W/(m·k) ] of the polymer has great limitation in the application of the polymer directly to the thermal management material, so that the addition of the thermal conductive filler such as graphene, carbon fiber, boron nitride and the like to the polymer matrix is a current common method.
However, the materials such as graphene and carbon fiber are conductive materials, and electric leakage and other conditions may occur in the electronic components, so that equipment is short-circuited. Boron Nitride (BN) is a material with good heat conducting property, high melting point, low density, high mechanical strength and excellent insulating property, and has outstanding thermal shock resistance, so that it is widely applied to high-temperature structural components of heat protection systems of spacecrafts and remote weapons. The highly oriented boron nitride material has excellent properties such as remarkable anisotropy of thermal, electric, magnetic and mechanical properties due to the highly oriented arrangement of the flaky boron nitride particles. Because boron nitride has the advantages, the boron nitride becomes a hot material for preparing the heat-conducting and insulating composite material, and has very broad application prospect.
The prior technology for producing the boron nitride heat-conducting gasket generally comprises the steps of mixing boron nitride with a polymer matrix, and enabling the boron nitride to realize parallel orientation in the matrix through a double-roll process; then die cutting and stacking the rolled parallel oriented boron nitride sizing material, and putting the parallel oriented boron nitride sizing material into a die with a certain height for hot press molding; and finally, carrying out 90-degree turnover cutting on the hot-pressed boron nitride block to obtain the boron nitride heat-conducting gasket. The rolling step in the implementation process of the method can cause the sizing material to be stuck on the coating film such as PET, so that the sizing material becomes dead material, the parallel oriented boron nitride sizing material is difficult to remove from the coating film, and the difficulty is increased in the whole preparation process. And when the taken-down parallel oriented boron nitride sizing material is subjected to die cutting treatment, more waste materials are generated for adapting to the size of the grinding tool, so that a large amount of sizing material is wasted, the production cost is increased, and the process is more complicated and more production time is consumed. In addition, in the rolling process, if the heights of the left side and the right side of the double rollers are inconsistent, the double rollers are easier to delaminate after die cutting and hot pressing, so that the problems of low product yield and the like are solved. The process steps are complex, and a large gap exists when stacking, so that the pressed material is easy to cause a cavity; meanwhile, due to fusion at the gap, overflow during pressing and other reasons, the orientation of the heat conducting filler in the material is easy to change.
In view of this, there is a need for an apparatus that increases the degree of orientation of the platy boron nitride in the thermally conductive gasket.
Disclosure of utility model
In view of the above, the technical problem to be solved by the present utility model is to provide an orientation equipment mechanism for improving the orientation efficiency and orientation effect of short fibers.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
the utility model provides two-dimensional filler orientation equipment applied to a heat-conducting gasket, which comprises a material pipe and a material discharging pipe which are sequentially connected, wherein an extrusion mechanism is in sliding connection with the material pipe, the cross section area of the material discharging pipe is gradually reduced from top to bottom, a pre-orientation joint is connected between the material pipe and the material discharging pipe, extrusion cavities with N trapezoid cross sections are arranged in the pre-orientation joint at intervals, and the material discharging hole of the material discharging pipe is rectangular, wherein N is a natural number greater than or equal to 2.
Preferably, the ratio of the outlet area of the N extrusion cavities to the discharge opening area of the discharge pipe is 3.6-18.
Preferably, the taper of the tapping pipe is 0.4.—1.
Preferably, the extrusion cavity has a taper of 0.4.—1.
Preferably, the ratio of the upper base width to the lower base width of the trapezoid cross section is 3:1.
Preferably, the lower base width of the trapezoid cross section is 3-5mm.
Preferably, the cross-sectional shape of the tube and the pre-oriented joint are both rectangular.
Preferably, the extrusion mechanism comprises a push rod and a flat plate, and the lower end of the push rod is fixedly connected to the upper surface of the flat plate.
Preferably, the vacuum tube further comprises a vacuum tube and a suction device, wherein one end of the vacuum tube is arranged on the flat plate, the vacuum tube is communicated with the inner cavity of the material tube, and the suction device is connected with the other end of the vacuum tube.
The two-dimensional filler orientation equipment provided by the utility model ingeniously uses the pre-orientation joint and the conical discharging pipe, improves the orientation arrangement effect of the two-dimensional filler in the silica gel mixture, has high orientation rate, and improves the heat conductivity of the heat conduction gasket. The two-dimensional filler orientation equipment is used for preparing the heat-conducting gasket, and the film is not required to be taken out like a roll-in method, so that the working procedure is saved; the gasket layering can not occur because the rolling after stacking is not needed, and the yield is improved; the die cutting times are reduced, the glue cutting waste is reduced, and the production cost is reduced. The two-dimensional filler orientation equipment applied to the heat-conducting gasket has the advantages of simple structure, convenient operation, good orientation effect, high heat conductivity coefficient, capacity improvement, production and manufacturing cost reduction and production effect reduction, and is suitable for popularization.
Drawings
FIG. 1 is a schematic structural view of a two-dimensional filler orientation apparatus of a first embodiment of the present utility model;
FIG. 2 is a schematic front view of the projection of FIG. 1;
FIG. 3 is a schematic left-view projection of FIG. 1;
FIG. 4 is a schematic top view of an embodiment of a two-dimensional packing orientation apparatus with the extrusion mechanism removed;
FIG. 5 is a schematic representation of the shape of a pre-oriented joint in a two-dimensional packing orientation apparatus of one embodiment;
FIG. 6 is a schematic view of an extrusion mechanism in a two-dimensional packing orientation apparatus of one embodiment;
Reference numerals: 1-material pipe, 2-material discharging pipe, 21-material discharging hole, 3-pre-oriented joint, 4-extrusion mechanism, 41-push rod, 42-flat plate, 31-extrusion cavity and 5-vacuum tube.
Detailed Description
For a further understanding of the present utility model, it will be apparent that the technical solutions of the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings, and that the described embodiments are only some embodiments, but not all embodiments of the present utility model, and all other embodiments obtained by persons skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the scope of protection of the present utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "left", "right", "front end", "rear end", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present utility model.
Referring to fig. 1-6, the present embodiment provides a two-dimensional packing orientation device applied to a heat-conducting gasket, which includes a material pipe 1 and a material discharging pipe 2 that are sequentially connected, wherein an extrusion mechanism 4 is slidably connected in the material pipe 1, the cross-sectional area of the material discharging pipe 2 gradually decreases from top to bottom, a pre-orientation joint 3 is connected between the material pipe 1 and the material discharging pipe 2, extrusion cavities 31 with N trapezoid cross-sections are arranged in the pre-orientation joint 3, and a material outlet 21 of the material discharging pipe 2 is rectangular, wherein N is a natural number greater than or equal to 2.
Specifically, in the plane direction parallel to the discharge port 21, the lower portion of the material pipe 1 has the same cross-sectional area, the cross-sectional area of the upper end of the material pipe 1 is equal to the cross-sectional area of the lower portion of the material pipe 1, and the cross-sectional area of the lower end of the discharge pipe 2 is smaller than the cross-sectional area of the upper portion of the discharge pipe 2.
In another embodiment, the ratio of the outlet area of the N extrusion chambers 31 to the area of the outlet 21 of the tapping pipe 2 is 3.6-18.
In another embodiment, referring to FIG. 3, the taper of the tapping pipe 2 is 0.4.—1. The taper determines the degree of compression and the orientation time of the material. The taper ratio of the tapping pipe 2 in this embodiment may be 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1mm, etc., but is not limited to the above values.
In another embodiment, referring to fig. 5, the extrusion chamber 31 has a taper of 0.4-1. The taper determines the degree of compression and the orientation time of the material. The taper of the extrusion chamber 31 in this embodiment may be 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1mm, etc., but is not limited to the above values.
In another embodiment, referring to FIG. 5, the ratio of the upper base width to the lower base width of the trapezoidal cross section is 3:1.
In another embodiment, referring to FIG. 5, the bottom width of the trapezoidal cross section is 3-5mm. The lower base width of the trapezoid cross section may be 3mm, 4mm, 5mm, etc., but is not limited to the above values.
In another embodiment, referring to fig. 4, the cross-sectional shape of both the tube 1 and the pre-oriented joint 3 is rectangular.
In another embodiment, the pressing mechanism 4 includes a push rod 41 and a flat plate 42, and the lower end of the push rod 41 is fixedly connected to the upper surface of the flat plate 42.
In another embodiment, the pre-oriented joint 3 is made of one of metal, ceramic and composite material.
The application method of the two-dimensional filler orientation equipment comprises the following steps: the silica gel mixture fully mixed with the two-dimensional filler is injected into the material pipe 1, the pressurizing-driven extrusion mechanism 4 is utilized to apply pressure to the material pipe 1, so that the rubber material is pushed to move towards the material pipe 2, the silica gel mixture passes through the pre-orientation joint 3, the lower N extrusion cavities 31 with trapezoid cross sections can give a shearing force to the rubber material, the two-dimensional filler in the rubber material is forced to be oriented for the first time due to the shearing force when passing through a narrow channel, then is extruded from the material outlet 21 through the material pipe 2, and the two-dimensional filler in the rubber material is further oriented due to the taper of the material outlet 2, so that the orientation effect is improved, the silica gel mixture is arranged on a slide glass or a mold, and the molded heat conducting gasket with the two-dimensional filler orientation is obtained after solidification molding.
The extrusion speed of the silica gel mixture is controlled by adjusting the pressure applied by the material pipe 1, the extrusion speed is higher as the pressure is higher, the directional arrangement of the two-dimensional filler is facilitated, and the pressure of the two-dimensional filler directional equipment applied to the heat-conducting gasket is adjusted according to the equipment capacity. The thickness of the heat conducting gasket is related to the distance between the outlet of the discharging pipe 2 and the slide or the die and the width of the discharging hole 21, and is adjusted according to the requirement.
In another embodiment, referring to fig. 1, 2 and 6, in order to prevent air holes from occurring during dispensing preparation and affecting the related performance of the gasket, the device further comprises a vacuum tube 5 and a suction device (not shown in the drawings), wherein one end of the vacuum tube 5 is arranged on the flat plate and is communicated with the inner cavity of the material tube 1, the suction device is connected with the other end of the vacuum tube 5, the suction device is connected with the upper end of the material tube 1, the inner cavity of the material tube 1 is vacuumized, and air is removed, so that the silica gel mixture is compact.
The two-dimensional filler of the embodiment is one or more of hexagonal boron nitride or graphene.
The two-dimensional filler orientation equipment provided by the utility model ingeniously uses the pre-orientation joint 3 and the conical discharging pipe 2, improves the orientation arrangement effect of the two-dimensional filler in the silica gel mixture, has high orientation rate, and improves the heat conductivity of the heat conduction gasket. The two-dimensional filler orientation equipment is used for preparing the heat-conducting gasket, and the film is not required to be taken out like a roll-in method, so that the working procedure is saved; the gasket layering can not occur because the rolling after stacking is not needed, and the yield is improved; the die cutting times are reduced, the glue cutting waste is reduced, and the production cost is reduced. The two-dimensional filler orientation equipment has the advantages of simple structure, convenient operation, good orientation effect, high heat conductivity coefficient of the heat conducting gasket, capacity improvement, production cost reduction and production effect reduction, and is suitable for popularization.
The technical scheme of the utility model is further described below with reference to specific embodiments.
Example 1
The two-dimensional filler orientation equipment of this embodiment, including material pipe 1 and discharging pipe 2 that connect gradually, extrusion mechanism 4 sliding connection in material pipe 1, extrusion mechanism 4 includes push rod 41 and dull and stereotyped 42, the lower extreme fixed connection of push rod 41 is on dull and stereotyped 42, the cross-sectional area of discharging pipe 2 reduces from top to bottom gradually, it has the pre-orientation joint 3 to link up between material pipe 1 and the discharging pipe 2, the extrusion cavity 31 of 10 trapezoidal cross-sections is arranged in the middle arrangement of the pre-orientation joint 3, the discharge gate 21 of discharging pipe 2 is the rectangle, the discharge gate 21 specification is 5.50 mm, the upper bore of extrusion cavity 31 is 9.150 mm, the outlet diameter size of extrusion cavity 31 is 3.150 mm, when preparing the heat conduction gasket, adopt 0.5MPa atmospheric pressure extrusion material pipe 1, the dispensing speed is 10mL/min.
Wherein, referring to fig. 3, in the left side view, the taper of the discharging pipe 2 is 1.4, and the cross section of the material pipe 1 and the pre-orientation joint 3 parallel to the discharging hole 21 is rectangular.
Example 2
The two-dimensional filler orientation equipment of this embodiment, including material pipe 1 and discharging pipe 2 that connect gradually, extrusion mechanism 4 is in material pipe 1 sliding connection, extrusion mechanism 4 includes push rod 41 and dull and stereotyped 42, the lower extreme fixed connection of push rod 41 is on dull and stereotyped 42, the cross-sectional area of discharging pipe 2 reduces from top to bottom gradually, it has the joint 3 of prealignment to link up between material pipe 1 and the discharging pipe 2, the extrusion cavity 31 of 5 trapezoidal cross-sections is arranged in the interval arrangement between the joint 3 of prealignment, the discharge gate 21 of discharging pipe 2 is the rectangle, the discharge gate 21 specification is 5.50 mm, the upper bore of extrusion cavity 31 is 12.150 mm, the outlet diameter size of extrusion cavity 31 is 4.150 mm, when preparing the heat conduction gasket, adopt 0.5MPa atmospheric pressure extrusion material pipe 1, the point is glued speed is 10mL/min, carry out the thermosetting after the evacuation, cut and finally obtain the boron nitride heat conduction gasket of production.
Referring to fig. 3, in the left side view, the taper of the discharging pipe 2 is 1, and the cross sections of the material pipe 1 and the pre-orientation joint 3 parallel to the discharging hole 21 are rectangular.
Example 3
The two-dimensional packing orientation equipment of this embodiment, including material pipe 1 and discharging pipe 2 that connect gradually, extrusion mechanism 4 sliding connection in material pipe 1, extrusion mechanism 4 includes push rod 41 and dull and stereotyped 42, the lower extreme fixed connection of push rod 41 is on dull and stereotyped 42, the cross-sectional area of discharging pipe 2 reduces gradually from last down, it has the pre-orientation joint 3 to link up between material pipe 1 and the discharging pipe 2, the extrusion cavity 31 of 8 trapezoidal cross-sections is arranged to the intermediate arrangement in the pre-orientation joint 3, the discharge gate 21 of discharging pipe 2 is the rectangle, the discharge gate 21 specification is 5 50mm, the upper diameter of extrusion cavity 31 is 9 150mm, the outlet diameter size of extrusion cavity 31 is 3 150mm. When the heat-conducting gasket is prepared, the material pipe 1 is extruded by adopting the air pressure of 0.5MPa, the dispensing speed is 10mL/min, the heat curing is carried out after vacuumizing, and finally the cutting is carried out, so that the produced boron nitride heat-conducting gasket is obtained.
Wherein, referring to fig. 3, in the left side view, the taper of the discharging pipe 2 is 0.8, and the cross section of the material pipe 1 and the pre-orientation joint 3 parallel to the discharging hole 21 is rectangular.
Example 4
The two-dimensional filler orientation equipment of this embodiment, including material pipe 1 and discharging pipe 2 that connect gradually, extrusion mechanism 4 is in material pipe 1 sliding connection, extrusion mechanism 4 includes push rod 41 and dull and stereotyped 42, the lower extreme fixed connection of push rod 41 is on dull and stereotyped 42, the cross-sectional area of discharging pipe 2 reduces from top to bottom gradually, it has the joint 3 of prealignment to link up between material pipe 1 and the discharging pipe 2, the extrusion cavity 31 of 5 trapezoidal cross-sections is arranged in the interval arrangement between the joint 3 of prealignment, the discharge gate 21 of discharging pipe 2 is the rectangle, the discharge gate 21 specification is 5.50 mm, the upper bore of extrusion cavity 31 is 9.150 mm, the outlet diameter size of extrusion cavity 31 is 3.150 mm, when preparing the heat conduction gasket, adopt 0.5MPa atmospheric pressure extrusion material pipe 1, the point is carried out the thermosetting after the evacuation of 10mL/min, cut the boron nitride heat conduction gasket of production.
Wherein, referring to fig. 3, in the left side view, the taper of the discharging pipe 2 is 0.8, and the cross section of the material pipe 1 and the pre-orientation joint 3 parallel to the discharging hole 21 is rectangular.
Comparative example 1
The preparation method is the same as in example 1, the equipment differs from example 1 in that: there is no pre-oriented joint between the pipe 1 and the discharge pipe 2.
Comparative example 2
The boron nitride heat-conducting gasket prepared by using a two-roll method in the background art.
The same mass ratio of hexagonal boron nitride was used for the heat conductive gaskets of examples 1-4 and comparative examples 1-2, and the formulation of the sizing was the same, and the prepared heat conductive gaskets had the same thickness.
The thermal conductivity of the thermal pads of examples 1-4 and comparative examples 1-2 were tested according to ASTM D5470, respectively. The test results of the specific examples and comparative examples are shown in table 1 below:
table 1 test results for each of examples and comparative examples
From the test results of examples 1-4 and comparative example 1, the thermal conductivity of examples 1-4 was increased by 27.9% using the same dispensing speed and extrusion pressure, indicating that the pre-oriented joint 3 was able to increase the thermal conductivity of the thermal conductive pad because the pre-oriented joint 3 was able to provide a better alignment of the hexagonal boron nitride.
From the test results of examples 1-4 and comparative example 2, the thermal conductivity of examples 1-4 is improved by 39.4%, which shows that the thermal conductivity of the thermal conductive gasket can be remarkably improved by adopting the two-dimensional filler orientation device of the application, because the cross-sectional area of the discharging pipe 2 is gradually reduced from top to bottom, so that hexagonal boron nitride is well oriented.
Through the above examples and comparative examples, it can be confirmed that the two-dimensional filler orientation device provided by the utility model skillfully uses the pre-orientation joint and the conical discharging pipe 2, improves the orientation arrangement effect of the two-dimensional filler in the silica gel mixture, has high orientation rate, and improves the heat conductivity of the heat conduction gasket. The two-dimensional filler orientation equipment is used for preparing the heat-conducting gasket, and the film is not required to be taken out like a roll-in method, so that the working procedure is saved; the gasket layering can not occur because the rolling after stacking is not needed, and the yield is improved; the die cutting times are reduced, the glue cutting waste is reduced, and the production cost is reduced. The two-dimensional filler orientation equipment has the advantages of simple structure, convenient operation, good orientation effect, high heat conductivity coefficient of the heat conducting gasket, capacity improvement, production cost reduction and production effect reduction, and is suitable for popularization.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. Be applied to heat conduction gasket's two-dimensional packing orientation equipment, its characterized in that includes material pipe and discharging pipe that connects gradually, extrusion mechanism is in material pipe sliding connection, the cross-sectional area of discharging pipe reduces from top to bottom gradually, the material pipe with link up between the discharging pipe has the orientation joint in advance, the extrusion cavity of N trapezoidal cross-section is set up to interval arrangement in the orientation joint in advance, the discharge gate of discharging pipe is the rectangle, and wherein N is more than or equal to 2 natural number.
2. A two-dimensional packing orientation apparatus for use with thermally conductive gaskets according to claim 1 wherein the ratio of the exit area of N extrusion chambers to the exit area is 3.6 to 18.
3. A two-dimensional packing orientation apparatus for use with a thermally conductive gasket according to claim 1 wherein the tapping pipe taper is 0.4-1.
4. A two-dimensional filler orientation apparatus for use with thermally conductive gaskets of claim 1 wherein said extrusion chamber has a taper of 0.4-1.
5. A two-dimensional filler orientation apparatus for use in a thermally conductive gasket according to claim 1 wherein the ratio of the upper base width to the lower base width of the trapezoidal cross section is 3:1.
6. A two-dimensional filler orientation apparatus for use in a thermally conductive gasket according to claim 1 wherein the lower base width of the trapezoidal cross section is 3-5mm.
7. A two-dimensional packing orientation apparatus for use with thermally conductive gaskets according to claim 1 wherein said tube and pre-oriented knuckle are rectangular in cross-sectional shape.
8. The two-dimensional packing orientation apparatus for use with a thermally conductive gasket of claim 1 wherein said pressing mechanism comprises a pushrod and a plate, a lower end of said pushrod being fixedly attached to an upper surface of said plate.
9. The two-dimensional packing orientation apparatus of claim 8 further comprising a vacuum tube disposed on said plate at one end and communicating said vacuum tube with said interior cavity of said tube and a suction device connected to said other end of said vacuum tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322432581.3U CN220808593U (en) | 2023-09-08 | 2023-09-08 | Two-dimensional filler orientation equipment applied to heat conduction gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322432581.3U CN220808593U (en) | 2023-09-08 | 2023-09-08 | Two-dimensional filler orientation equipment applied to heat conduction gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220808593U true CN220808593U (en) | 2024-04-19 |
Family
ID=90699901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322432581.3U Active CN220808593U (en) | 2023-09-08 | 2023-09-08 | Two-dimensional filler orientation equipment applied to heat conduction gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220808593U (en) |
-
2023
- 2023-09-08 CN CN202322432581.3U patent/CN220808593U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106867094A (en) | A kind of heat-conductivity polymer composite and its preparation method using mill | |
| CN102208659A (en) | Manufacturing process and device of bipolar plate for fuel cell | |
| CN220808593U (en) | Two-dimensional filler orientation equipment applied to heat conduction gasket | |
| CN111995425A (en) | Gel casting material composition of aluminum silicon carbide composite material, prefabricated part and preparation method of structural part | |
| CN101795549B (en) | High-efficiency radiator and method for manufacturing same | |
| EP1248311A2 (en) | Process for producing a fuel cell separator | |
| CN217257584U (en) | Short fiber orientation equipment | |
| CN112026204B (en) | Compression molding method and pre-compaction mold for antenna housing | |
| CN209598002U (en) | Stamping die is used in a kind of processing of handware | |
| CN106363032A (en) | Aluminum material extruding machine | |
| CN114369363B (en) | Method and die for preparing heat-conducting gasket and heat-conducting gasket obtained by same | |
| CN111674115B (en) | Artificial graphite flake high-orientation arranged heat conducting sheet and preparation method thereof | |
| CN212288313U (en) | Shaping mold with good cooling effect | |
| CN107972292B (en) | Dispensing equipment and method for preparing high-thermal-conductivity interface material by using same | |
| CN210190406U (en) | Large-range variable-thickness cavity injection compression mold mechanism | |
| CN113707900A (en) | Preparation method of composite bipolar plate for fuel cell | |
| CN105633419A (en) | Bipolar plate used for hydrogen fuel battery pack and manufacturing process therefor | |
| CN113619157A (en) | Combined forming die for annular composite material structural part | |
| CN221640582U (en) | Super-hard abrasive tool bit pressing die | |
| CN219563546U (en) | Graphite production processing compacting die | |
| CN221112946U (en) | Double-composite base adhesive pre-opening assembly | |
| CN221715321U (en) | Extrusion structure of battery box water cooling plate | |
| CN220517319U (en) | Mould for forming composite material box products with variable sizes | |
| CN214324090U (en) | High-heat-dissipation precision die | |
| CN217574308U (en) | Special-shaped mica pipe stamping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |