CN219311820U - Graphene film calendaring equipment - Google Patents
Graphene film calendaring equipment Download PDFInfo
- Publication number
- CN219311820U CN219311820U CN202320548260.7U CN202320548260U CN219311820U CN 219311820 U CN219311820 U CN 219311820U CN 202320548260 U CN202320548260 U CN 202320548260U CN 219311820 U CN219311820 U CN 219311820U
- Authority
- CN
- China
- Prior art keywords
- graphene film
- calendaring
- groove
- columnar
- support plate
- 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
Images
Landscapes
- Carbon And Carbon Compounds (AREA)
Abstract
The application relates to the technical field of graphene heat conduction films, in particular to graphene film rolling equipment, which comprises a rolling machine body and a rolling carrier plate arranged on the rolling machine body; at least part of the surface of the calendaring support plate is provided with an exhaust structure, the exhaust structure is a bulge formed on the surface of the calendaring support plate, and an exhaust channel of the calendaring support plate is formed between adjacent bulges; or the exhaust structure is a groove concavely formed on the surface of the calendaring support plate, and the groove is an exhaust channel of the calendaring support plate. The application provides a graphene film rolling equipment sets up exhaust structure through on the calendering carrier plate that bears the graphene film for the graphene film is in the calendering in-process, even graphene film and laminating of calendering carrier plate, the bubble between the laminated graphene film also accessible exhaust passage that exhaust structure formed is discharged, very big improvement the bubble problem of arranging of graphene film in the calendering in-process, improved the preparation yield of graphene film.
Description
[ field of technology ]
The application relates to the technical field of graphene heat conduction films, in particular to graphene film calendaring equipment.
[ background Art ]
The graphene heat conducting film is a heat conducting material with excellent performance, is widely applied to the fields of mobile phones, tablet computers, military industry, aerospace and the like, has better performance than a heat conducting film prepared by processing natural graphite, and is prepared by processing a polyimide film (PI film) for the artificially synthesized graphene heat conducting film through procedures of carbonization, graphitization, calendaring and the like;
the current rolling technology of the graphene heat-conducting film mainly adopts a vacuum rolling technology with high requirements on the sealing performance and the vacuum capacity of equipment, most of rolling support plates used by the rolling method are mirror surface stainless steel plates, and in the rolling process, bubbles in the graphene film are difficult to discharge due to tight adhesion of the graphene film and the mirror surface stainless steel support plates, so that the yield of the prepared graphene film is low. Therefore, how to rapidly and effectively remove bubbles in the graphene film during the calendaring, improve the calendaring efficiency and further improve the productivity is a problem to be solved at the present stage.
[ utility model ]
In view of this, this application provides a graphene film rolling equipment, through set up exhaust structure on graphene film rolling equipment's calendering support plate, it is convenient.
The application provides a graphene film rolling device, which comprises a rolling machine body and a rolling carrier plate arranged on the rolling machine body;
at least part of the surface of the calendaring support plate is provided with an exhaust structure, the exhaust structure is a protrusion formed on the surface of the calendaring support plate, and an exhaust channel of the calendaring support plate is formed between adjacent protrusions; or the exhaust structure is a groove concavely formed on the surface of the calendaring support plate, and the groove is an exhaust channel of the calendaring support plate.
The beneficial effects realized by the scheme are as follows:
the application provides a graphene film rolling equipment sets up exhaust structure through on the calendering carrier plate that bears the graphene film for the graphene film is in the calendering in-process, even graphene film and laminating of calendering carrier plate, the bubble between the laminated graphene film also accessible exhaust passage that exhaust structure formed is discharged, very big improvement the bubble problem of arranging of graphene film in the calendering in-process, improved the preparation yield of graphene film.
In a possible embodiment, the protrusions are strip-shaped ribs formed on at least part of the surface of the rolled carrier plate;
the shape of the strip-shaped rib is one of a linear rib, a broken line rib and an arc rib.
In a possible embodiment, the protrusion is a linear rib, and an extending direction of the linear rib is one of a longitudinal direction of the rolled carrier plate, a transverse direction of the rolled carrier plate, and an oblique direction of the rolled carrier plate.
In a feasible embodiment, a combined groove is formed between the adjacent linear convex edges, and the arrangement interval of the adjacent combined grooves is 50-100 mu m;
the combined groove comprises a V-shaped groove and a columnar groove, wherein the V-shaped groove and the columnar groove are arranged at intervals, and the arrangement interval is 50-100 mu m;
the depth of the V-shaped groove and the columnar groove is 15-20 mu m, and the opening width of the V-shaped groove and the columnar groove is 5-10 mu m.
In a possible embodiment, the protrusions are columnar bumps and/or semicircular bumps formed on at least part of the surface of the rolled carrier plate;
the stud bump is one of a cylindrical bump or a polygonal stud bump.
In a possible embodiment, the height of the columnar bump and/or the semicircular bump is 15 μm to 20 μm, the width is 5 μm to 10 μm, and the arrangement pitch of the adjacent columnar bump and/or the adjacent semicircular bump is 50 μm to 100 μm.
In a possible embodiment, the grooves are columnar grooves and/or semicircular grooves formed on at least part of the surface of the calendared carrier plate;
the columnar groove is one of a cylindrical groove or a polygonal columnar groove.
In a possible embodiment, the depth of the columnar groove and/or the semicircular groove is 15 μm to 20 μm, the opening width is 5 μm to 10 μm, and the arrangement pitch of the adjacent columnar groove and/or the adjacent semicircular groove is 50 μm to 100 μm.
In a possible embodiment, the thickness of the calendared support plate is 0.9mm to 1.1mm.
In a possible embodiment, the calendaring machine body comprises a supporting component, a loading table, a limiting component, a hydraulic component and an air exhausting component;
the graphene film is placed on the calendaring support plate, the calendaring support plate is installed on the loading table, the hydraulic component pushes the calendaring support plate to conduct the calendaring process, and the graphene film discharges gas and is pumped away from the graphene film calendaring equipment by the air draft component.
Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a graphene film calendaring apparatus provided in the present application;
fig. 2 is a schematic structural diagram of a rolled carrier plate of the graphene film rolling apparatus provided in the present application;
fig. 3 is a schematic structural diagram of another calendaring support plate of the graphene film calendaring apparatus provided in the present application;
fig. 4 is a schematic structural diagram of a further calendaring support plate of the graphene film calendaring apparatus provided herein;
fig. 5 is a schematic structural diagram of a rolled carrier plate provided with a combination groove of the graphene film rolling equipment;
fig. 6 is a schematic structural diagram of still another calendaring support plate of the graphene film calendaring apparatus provided in the present application;
fig. 7 is a schematic structural diagram of still another calendaring support plate of the graphene film calendaring apparatus provided herein.
Reference numerals:
1-calendaring a carrier plate; 11-an exhaust passage; 2-supporting columns; 3-an upper support table; 4-a lower support table; 5-loading stage; 6-limiting columns; 7-a hydraulic column; 8-exhaust tube.
[ detailed description ] of the utility model
For a better understanding of the technical solutions of the present application, embodiments of the present application are described in detail below with reference to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which would be apparent to one of ordinary skill in the art without making any inventive effort, are intended to be within the scope of the present application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one relationship describing the association of the associated objects, meaning that there may be three relationships, e.g., a and/or B, may represent: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.
The graphene heat conducting film is a heat conducting material with excellent performance, is widely applied to the fields of mobile phones, tablet computers, military industry, aerospace and the like, has better performance than a heat conducting film prepared by processing natural graphite, and is prepared by processing a polyimide film (PI film) for the artificially synthesized graphene heat conducting film through procedures of carbonization, graphitization, calendaring and the like;
the current rolling technology of the graphene heat-conducting film mainly adopts a vacuum rolling technology with high requirements on the sealing performance and the vacuum capacity of equipment, most of rolling support plates used by the rolling method are mirror surface stainless steel plates, and in the rolling process, bubbles in the graphene film are difficult to discharge due to tight adhesion of the graphene film and the mirror surface stainless steel support plates, so that the yield of the prepared graphene film is low. Therefore, how to rapidly and effectively remove bubbles in the graphene film during the calendaring, improve the calendaring efficiency and further improve the productivity is a problem to be solved at the present stage.
In view of this, the present application provides a graphene film rolling apparatus, fig. 1 is a schematic structural diagram of the graphene film rolling apparatus provided in the present application, and as shown in fig. 1, the graphene film rolling apparatus includes a rolling machine body and a rolling carrier plate 1 mounted on the rolling machine body;
at least part of the surface of the rolled carrier plate 1 is provided with an exhaust structure, the exhaust structure is a bulge formed on the surface of the rolled carrier plate 1, and an exhaust channel 11 of the rolled carrier plate 1 is formed between adjacent bulges; or the exhaust structure is a groove concavely formed on the surface of the rolled carrier plate 1, and the groove is an exhaust channel 11 of the rolled carrier plate 1.
In the scheme, the graphene film rolling equipment is provided with the exhaust structure on the rolling carrier plate 1 for the graphene film is in the rolling process, even if the graphene film is attached to the rolling carrier plate 1, bubbles between the laminated graphene films can be discharged through the exhaust channel 11 formed by the exhaust structure, so that the bubble discharging problem of the graphene film in the rolling process is greatly improved, and the preparation yield of the graphene film is improved.
In some embodiments, the graphene rolling device comprises a rolling machine body and a rolling carrier plate 1, wherein a plurality of rolling carrier plates 1 are stacked in the vertical direction in fig. 1, the rolling carrier plate 1 is used for carrying a graphene film, and the rolling machine body is used for carrying out a rolling process on the graphene film on the rolling carrier plate 1 after the rolling carrier plate 1 is installed. Specifically, the calendaring machine body comprises a supporting component, a loading table 5, a limiting component, a hydraulic component and an air draft component, wherein the supporting component comprises four supporting columns 2 arranged along the vertical direction and an upper supporting table and a lower supporting table 4 arranged perpendicular to the four supporting columns 2, and a calendaring cavity is formed between the four supporting columns 2 and the upper supporting table and the lower supporting table 4; the loading table 5 is arranged on the lower supporting table 4 and is used for installing the calendaring carrier plate 1; the four azimuth angles of the calendaring support plate 1 are provided with limiting assemblies, and the limiting assemblies are four limiting columns 6 used for limiting the displacement of the calendaring support plate 1 in the horizontal direction; the hydraulic assembly is a hydraulic column 7 which can be along the vertical direction and can push the lower supporting table 4 to rise so as to provide driving force for calendaring; the exhaust assembly is fixed on two sides of the calendaring cavity through a fixing belt and comprises an exhaust pipe 8 and an exhaust port close to the calendaring carrier plate 1.
It can be appreciated that when the graphene film is placed on the calendaring support plate 1, the hydraulic column 7 pushes the lower support table 4 to ascend for calendaring, and the gas exhausted from the graphene film is pumped out of the graphene film calendaring device through the air suction opening of the air suction pipe 8.
In some embodiments, by providing the venting structure on at least part of the surface of the rolled carrier plate 1, i.e. the venting structure may be provided only on part of the surface of the rolled carrier plate 1, for example only on the front or back side of the rolled carrier plate 1, or only on part of the front or back side of the rolled carrier plate 1; the exhaust structure may be disposed on the entire surface of the rolled carrier plate 1, and the coverage area of the exhaust structure may be selected according to actual needs, which is not limited herein. Preferably, the exhaust structure of the present application is disposed on the front and back sides of the rolled carrier plate 1, and the exhaust channel 11 extends to the edge of the rolled carrier plate 1, so as to improve the bubble removal problem of the graphene film in the rolling process.
Specifically, the exhaust structure is a protrusion or a recess formed on the surface of the rolled carrier plate 1, and a recess or a recess formed on the surface of the rolled carrier plate 1, and an exhaust passage 11 of the rolled carrier plate 1 is formed between adjacent protrusions or recesses. It can be appreciated that after the exhaust structure is arranged, when the graphene film is covered on the rolled carrier plate 1, at least part of the graphene film is not attached to the surface of the rolled carrier plate 1 due to the arrangement of the exhaust channel 11, and in the process of rolling the graphene film, the gas in the graphene film can enter the exhaust channel 11 from the attached part and is pumped away from the graphene film rolling equipment by the exhaust pipe 8.
As an optional technical scheme of the application, the protrusion is a strip-shaped rib formed on at least part of the surface of the calendaring support plate 1, namely, the length of the protrusion is far greater than the width of the protrusion, and the shape of the strip-shaped rib is one of a linear rib, a fold line rib and an arc rib. The linear convex rib is a strip-shaped structure protruding on the surface of the calendaring carrier plate 1, and has no bending part; when the fold line type convex rib is arranged on the surface of the calendaring carrier plate 1, the single convex rib is provided with at least one inflection point, such as a zigzag convex rib and the like; the arc-shaped rib means a protrusion with radian, such as a semicircular rib or a circular rib formed by enclosing, and the shape of the rib can be selected according to actual needs, namely, the protrusion can be all a single one of a linear rib, a fold line rib and an arc-shaped rib, or can be a combination of two or three types, such as a combination of the linear rib and the arc-shaped rib, and one or more combinations can enable the calendaring support plate 1 to have an exhaust effect, and the calendaring support plate is not limited herein.
Preferably, the protrusions used in the application are linear ribs, and the preparation process is simple.
Fig. 2 is a schematic structural view of a rolled carrier of the graphene film rolling apparatus provided in the present application, fig. 3 is a schematic structural view of another rolled carrier of the graphene film rolling apparatus provided in the present application, and fig. 4 is a schematic structural view of another rolled carrier of the graphene film rolling apparatus provided in the present application, as shown in fig. 2, fig. 3 and fig. 4, an extending direction of the linear rib is one of a longitudinal direction of a surface of the rolled carrier 1, a transverse direction of the surface of the rolled carrier 1, and an oblique direction of the surface of the rolled carrier 1, and the transverse direction of the surface of the rolled carrier 1 refers to a direction in which a shorter edge points after the sheet-shaped rolled carrier 1 is placed in a horizontal direction; the longitudinal direction of the surface of the rolled carrier plate 1 refers to the direction in which the longer edge points after the sheet-shaped rolled carrier plate 1 is placed in the horizontal direction. It can be understood that when the extending direction of the linear ribs is the transverse direction of the surface of the rolled support plate 1, the plurality of linear ribs are arranged on the surface of the rolled support plate 1 in the width direction of the rolled support plate 1; when the extending direction of the linear ribs is the longitudinal direction of the surface of the rolled carrier plate 1, a plurality of linear ribs are arranged on the surface of the rolled carrier plate 1 along the length direction of the rolled carrier plate 1; when the extending direction of the linear ribs is the slant of the surface of the rolled carrier plate 1, the linear ribs simultaneously extend at an angle to the length direction and the width direction of the rolled carrier plate 1. The extending direction of the linear rib can be selected according to actual needs, and is not limited herein.
Further, fig. 5 is a schematic structural diagram of a rolled support plate provided with a combination groove of the graphene film rolling equipment provided by the application, as shown in fig. 5, a combination groove is formed between adjacent linear ribs, the combination groove is an exhaust channel 11 of a rolled substrate, and gas in the graphene film can be exhausted through the combination groove. The arrangement pitch of the adjacent combination grooves in the present application is 50 μm to 100 μm, and alternatively, the arrangement pitch of the combination grooves may be specifically 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, or the like, or may be any other value within a range, and may be selected according to actual needs, and is not limited herein. The arrangement space of the combination grooves is the width of the top surface of the linear convex rib, the top surface of the linear convex rib is used for being abutted against the graphene film, if the arrangement space of the combination grooves is too small, namely the volume of the exhaust channel 11 is small, gas cannot be discharged in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved; if the arrangement interval of the combination groove is too large, namely the contact area of the graphene film and the calendaring support plate 1 is too small, the graphene film can be sunken to form wrinkles at the combination groove in the calendaring process, and the preparation yield of the graphene film is affected.
Preferably, the combination groove of this application includes "V" type groove and column groove, and "V" type groove sets up with column groove interval, and it can be understood that the setting mode of combination groove is: the V-shaped grooves are formed between the adjacent linear convex edges, then the columnar grooves are dug in the V-shaped grooves along the extending direction of the V-shaped grooves, so that the V-shaped grooves and the columnar grooves are arranged at intervals, the arrangement distance between the V-shaped grooves and the columnar grooves is 50-100 mu m, namely 50 mu m, 60 mu m, 70 mu m, 80 mu m, 90 mu m, 100 mu m and the like, other values in the range can be adopted, and the V-shaped grooves and the columnar grooves can be selected according to actual needs without limitation. It can be understood that the V-shaped structure of the V-shaped groove can enable the gas to flow better, and the volume of the cylindrical groove is larger than that of the V-shaped groove by arranging the cylindrical groove on the V-shaped groove, so that the exhaust capacity of the exhaust channel 11 is increased, and the exhaust effect of the rolled carrier plate 1 is ensured.
The depth of the "V" shaped grooves and the columnar grooves is 15 μm to 20. Mu.m, and the depth of the "V" shaped grooves and the columnar grooves may be 15 μm, 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, etc., or may be other values within the range, and may be selected according to actual needs, and is not limited herein. If the depths of the V-shaped grooves and the columnar grooves are too deep, the minimum thickness of the rolled carrier plate 1 becomes small, the structural stability of the rolled carrier plate 1 is easily affected, and the rolled carrier plate is easily damaged in the rolling process; if the depths of the V-shaped grooves and the columnar grooves are too shallow, the volume of the exhaust channel 11 is reduced, gas cannot be discharged in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved.
The opening widths of the V-shaped grooves and the columnar grooves may be 5 μm to 10 μm, and the opening widths of the V-shaped grooves and the columnar grooves may be 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, or the like, or may be other values within a range, and may be selected according to actual needs, and are not limited thereto. The contact area of the graphene film and the top surface of the calendaring support plate 1 is influenced by the opening widths of the V-shaped grooves and the columnar grooves, and if the opening widths of the V-shaped grooves and the columnar grooves are too large, namely the contact area of the graphene film and the calendaring support plate 1 is too small, the graphene film is sunken to form wrinkles at the combined grooves in the calendaring process, so that the preparation yield of the graphene film is influenced; if the opening widths of the V-shaped grooves and the columnar grooves are too small, namely the volume of the exhaust channel 11 is small, gas cannot be discharged in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved.
Other types of combination grooves besides the V-shaped grooves and the columnar grooves can be adopted, and the combination grooves can be selected according to actual needs without limitation.
As still another optional technical scheme of the present application, fig. 6 is a schematic structural diagram of still another calendaring carrier plate of a graphene film calendaring apparatus provided in the present application, as shown in fig. 6, the protrusion may also be a columnar bump and/or a semicircular bump formed on at least part of the surface of the calendaring carrier plate 1, the columnar bump is one of a cylindrical bump or a polygonal columnar bump, the bump is arranged on the surface of the calendaring carrier plate 1 in a displaying manner, gaps between the connected bumps form an exhaust channel, and in the calendaring process, the graphene film exhaust gas may be exhausted from the exhaust channel 11 to the outside of the laminated calendaring carrier plate 1, and then exhausted from the calendaring apparatus by the exhaust pipe 8. The arrangement pitch of the adjacent columnar bump and/or the adjacent semicircular bump is 50 μm to 100 μm, and alternatively, the arrangement pitch of the adjacent columnar bump and/or the adjacent semicircular bump may be specifically 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, or the like, or may be other values within a range, and may be selected according to actual needs, and is not limited herein. An exhaust channel 11 is formed between adjacent columnar protruding points and/or adjacent semicircular protruding points, if the arrangement space between the adjacent columnar protruding points and/or the adjacent semicircular protruding points is too small, namely the volume of the exhaust channel 11 is small, gas can not be discharged in time, and the problem of bubble discharge of the graphene film in the calendaring process can not be solved; if the setting interval between the adjacent columnar protruding points and/or the adjacent semicircular protruding points is too large, namely the contact area between the graphene film and the calendaring support plate 1 is too small, the graphene film can be sunken to form wrinkles at the position of the exhaust channel 11 in the calendaring process, and the preparation yield of the graphene film is affected.
The height of the stud bump and/or the semicircle bump is 15 μm to 20 μm, and alternatively, the height of the stud bump and/or the semicircle bump may be specifically 15 μm, 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, or the like, or may be other values within a range, may be selected according to actual needs, and is not limited herein. The height of the columnar convex points and/or the semicircular convex points is overlarge, the minimum thickness of the rolled carrier plate 1 is reduced, the structural stability of the rolled carrier plate 1 is easily affected, and the rolled carrier plate is easily damaged in the rolling process; if the height of the columnar bump and/or the semicircular bump is too small, the volume of the exhaust channel 11 becomes small, the gas cannot be exhausted in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved.
The width of the stud bump and/or the semicircle bump is 5 μm to 10 μm, and alternatively, the width of the stud bump and/or the semicircle bump may be specifically 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, or the like, or may be other values within a range, and may be selected according to actual needs, and is not limited herein. The widths of the columnar convex points and/or the semicircular convex points are overlarge, namely the volume of the exhaust channel 11 is reduced, gas cannot be exhausted in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved; if the widths of the columnar protruding points and/or the semicircular protruding points are too small, namely the contact area of the graphene film and the calendaring support plate 1 is too small, the graphene film can be sunken to form wrinkles at the combined groove in the calendaring process, and the preparation yield of the graphene film is affected.
As still another optional technical solution of the present application, fig. 7 is a schematic structural diagram of still another calendaring support plate of a graphene film calendaring apparatus provided in the present application, as shown in fig. 7, the grooves may also be cylindrical grooves and/or semicircular grooves formed on at least part of the surface of the calendaring support plate 1, where the cylindrical grooves are one of semicircular grooves or polygonal cylindrical grooves, and the grooves are distributed on the surface of the calendaring support plate 1 in an array.
It should be noted that, when the exhaust structure is the recess, and the calendaring equipment exerts effort and carries out the calendaring process to the graphene film, the exhaust gas in the graphene film stores in the recess of calendering carrier plate 1 earlier, and after the calendaring was accomplished, the calendaring equipment withdraws the effort of exerting, and graphene film and the non-laminating state of calendering carrier plate 1, and the gas accessible exhaust column 8 that stores in the recess is discharged outside the calendaring equipment this moment.
The arrangement pitch of the adjacent columnar grooves and/or the adjacent semicircular grooves is 50 μm to 100 μm, and alternatively, the arrangement pitch of the adjacent columnar grooves and/or the adjacent semicircular grooves may be specifically 50 μm, 60 μm, 70 μm, 80 μm, 90 μm, 100 μm, or the like, or may be other values within a range, and may be selected according to actual needs, and is not limited herein. The columnar grooves and/or the adjacent semicircular grooves form an exhaust channel 11, if the arrangement space between the columnar grooves and/or the adjacent semicircular grooves is too large, the settable number of the columnar grooves and/or the adjacent semicircular grooves is reduced, namely the total volume of the exhaust channel 11 is reduced, gas cannot be discharged in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved; if the setting interval between the adjacent columnar grooves and/or the adjacent semicircular grooves is too small, namely the contact area between the graphene film and the calendaring support plate 1 is too small, the graphene film can be sunken to form wrinkles at the position of the exhaust channel 11 in the calendaring process, and the preparation yield of the graphene film is affected.
The depth of the columnar grooves and/or the semicircular grooves is 15 μm to 20. Mu.m, and the depth of the columnar grooves and/or the semicircular grooves may be 15 μm, 16 μm, 17 μm, 18 μm, 19 μm, 20 μm, or the like, or may be any other value within a range, and may be selected according to actual needs, and is not limited thereto. The depth of the columnar groove and/or the semicircular groove is too large, the minimum thickness of the rolled carrier plate 1 is reduced, the structural stability of the rolled carrier plate 1 is easily affected, and the rolled carrier plate is easily damaged in the rolling process; if the depth of the columnar groove and/or the semicircular groove is too small, the volume of the exhaust channel 11 is reduced, gas cannot be timely exhausted, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved.
The width of the columnar grooves and/or the semicircular grooves is 5 μm to 10 μm, and the width of the columnar grooves and/or the semicircular grooves may be, for example, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, or 10 μm, or may be any other value within a range, and may be selected according to actual needs, and is not limited thereto. The widths of the columnar grooves and/or the semicircular grooves are too small, namely the volume of the exhaust channel 11 is reduced, gas cannot be exhausted in time, and the problem of bubble removal of the graphene film in the calendaring process cannot be solved; if the widths of the columnar grooves and/or the semicircular grooves are too large, namely the contact area of the graphene film and the calendaring support plate 1 is too small, the graphene film can be sunken to form wrinkles at the combined grooves in the calendaring process, and the preparation yield of the graphene film is affected.
The thickness of the rolled carrier plate 1 used in the present application may be 0.9mm to 1.1mm, specifically 0.9mm, 0.92mm, 0.94mm, 0.96mm, 0.98mm, 1.0mm, 1.1mm, etc., or may be other values within the range, and may be selected according to actual needs, and is not limited thereto. That is, the depth of the air discharge channel 11 is far smaller than the thickness of the rolled carrier plate 1, and when the rolled carrier plate 1 is provided with the air discharge channel 11 with the depth of 15-20 μm, the structural stability of the rolled carrier plate 1 is not affected.
In the practical application process, through set up the exhaust structure of arch or recess on the calendering carrier plate 1 that bears the weight of the graphene film, the graphene film is in the laminating of calendering in-process, the partly top surface of graphene film and calendering carrier plate 1, the effort is exerted along vertical direction to hydraulic pressure post 7 this moment, the extrusion of the calendering carrier plate 1 combined action of graphene film both sides makes in the graphene film exhaust gas get into in the exhaust passage 11 of formation of arch or recess, discharge along exhaust passage 11 or store in exhaust passage 11 earlier, very big improvement the bubble problem of arranging of graphene film in the calendering in-process, the preparation yield of graphene film has been improved.
Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present application, and are not limiting. Although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that the technical solutions described in the foregoing embodiments may be modified or some or all of the technical features may be equivalently replaced. Such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The graphene film rolling equipment comprises a rolling machine body and a rolling support plate arranged on the rolling machine body; the method is characterized in that:
at least part of the surface of the calendaring support plate is provided with an exhaust structure, the exhaust structure is a protrusion formed on the surface of the calendaring support plate, and an exhaust channel of the calendaring support plate is formed between adjacent protrusions; or the exhaust structure is a groove concavely formed on the surface of the calendaring support plate, and the groove is an exhaust channel of the calendaring support plate.
2. The graphene film calendering apparatus according to claim 1, wherein the protrusions are strip-shaped ribs formed on at least part of the surface of the calendered carrier plate;
the shape of the strip-shaped rib is one of a linear rib, a broken line rib and an arc rib.
3. The graphene film calendering apparatus according to claim 2, wherein the protrusion is a linear rib, and an extending direction of the linear rib is one of a longitudinal direction of the calendered carrier plate, a transverse direction of the calendered carrier plate, and an oblique direction of the calendered carrier plate.
4. The graphene film calendaring apparatus according to claim 3, wherein a combination groove is formed between adjacent linear ribs, and a setting pitch of the adjacent combination grooves is 50 μm to 100 μm;
the combined groove comprises a V-shaped groove and a columnar groove, wherein the V-shaped groove and the columnar groove are arranged at intervals, and the arrangement interval is 50-100 mu m;
the depth of the V-shaped groove and the columnar groove is 15-20 mu m, and the opening width of the V-shaped groove and the columnar groove is 5-10 mu m.
5. The graphene film calendering apparatus according to claim 1, wherein the protrusions are columnar bumps and/or semicircular bumps formed on at least part of the surface of the calendered carrier plate;
the stud bump is one of a cylindrical bump or a polygonal stud bump.
6. The graphene film rolling apparatus according to claim 5, wherein the columnar bump and/or the semicircular bump has a height of 15 μm to 20 μm and a width of 5 μm to 10 μm, and the arrangement pitch of the adjacent columnar bump and/or the adjacent semicircular bump is 50 μm to 100 μm.
7. The graphene film calendering apparatus according to claim 1, wherein the grooves are columnar grooves and/or semicircular grooves formed on at least part of the surface of the calendered carrier plate;
the columnar groove is one of a cylindrical groove or a polygonal columnar groove.
8. The graphene film rolling apparatus according to claim 7, wherein the depth of the columnar groove and/or the semicircular groove is 15 μm to 20 μm, the opening width is 5 μm to 10 μm, and the arrangement pitch of the adjacent columnar groove and/or the adjacent semicircular groove is 50 μm to 100 μm.
9. The graphene film calendering apparatus according to claim 1, wherein the thickness of the calendered carrier plate is 0.9mm to 1.1mm.
10. The graphene film calendaring apparatus according to claim 1, wherein the calendaring machine body comprises a support assembly, a loading table, a limiting assembly, a hydraulic assembly and an air draft assembly;
the graphene film is placed on the calendaring support plate, the calendaring support plate is installed on the loading table, the hydraulic component pushes the calendaring support plate to conduct the calendaring process, and the graphene film discharges gas and is pumped away from the graphene film calendaring equipment by the air draft component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320548260.7U CN219311820U (en) | 2023-03-20 | 2023-03-20 | Graphene film calendaring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320548260.7U CN219311820U (en) | 2023-03-20 | 2023-03-20 | Graphene film calendaring equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219311820U true CN219311820U (en) | 2023-07-07 |
Family
ID=87024798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320548260.7U Active CN219311820U (en) | 2023-03-20 | 2023-03-20 | Graphene film calendaring equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219311820U (en) |
-
2023
- 2023-03-20 CN CN202320548260.7U patent/CN219311820U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2911228B1 (en) | Manufacturing method of a fuel cell | |
| CN105870477B (en) | Fuel battery double plates | |
| TWI586026B (en) | Bipolar electrode and method for producing same | |
| JP5703737B2 (en) | Fuel cell stack | |
| KR890005917A (en) | Metal / Air Battery with Circulating Electrolyte | |
| CA2578009A1 (en) | Fuel cell having buffer with inclined surface | |
| CN1886858A (en) | Compliant stack for a planar solid oxide fuel cell | |
| CN219311820U (en) | Graphene film calendaring equipment | |
| CN206992223U (en) | A kind of fuel battery double plates | |
| EP2124281A1 (en) | Fuel cell, electronic device, fuel feeding plate, and fuel feeding method | |
| US11460020B2 (en) | Micro-delivery device | |
| WO2024022419A1 (en) | Polar plate combined flow channel for hydrogen fuel cell | |
| EP2087541B1 (en) | Fuel cell and flow field plate for the same | |
| US9496568B2 (en) | Fuel cell | |
| EA027473B1 (en) | Electrochemical cell stack | |
| CN109921056B (en) | Grid flow field | |
| CN214588921U (en) | Double polar plate with inclination angle hexagon rib proton exchange film fuel cell | |
| EP3361543B1 (en) | Fuel cell stack | |
| CN203103412U (en) | Sectional type flow distribution measuring device | |
| CN205911381U (en) | Baffle ends superficial device and OPzS battery | |
| KR20200028072A (en) | Fuel cell stack | |
| CN115261907B (en) | Electrode plate, electrolytic tank and electrolytic hydrogen production system | |
| KR100874386B1 (en) | Manufacturing method of square battery | |
| CN221057482U (en) | Battery cell | |
| CN110970634B (en) | Electrode frame for all-vanadium redox flow battery and application |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |