Copper-graphene layered composite board preparation device

Abstract

The utility model discloses a copper-graphene layered composite board preparation device, and belongs to the technical field of copper-graphene layered composite materials. According to the device disclosed by the utility model, the heating device and the pressing device are arranged, so that a plurality of layers of copper-based graphene can be rolled by using the pressing device while being wound and placed in the heating device for heating, and metallurgical bonding and grain growth of adjacent layers of copper foils are realized through deformation and breakage of graphene by adjusting the heating temperature and the rolling pressure; and finally, the copper-graphene layered composite plate with uniform structure and performance can be obtained. Heating and pressing of the device are located in the working area and can be conducted at the same time, and the problem that due to the fact that existing heating modules exist in an independent heating unit and an independent rolling unit respectively, the risk of copper foil breakage easily exists, and then the quality of the composite board is poor is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of copper-graphene layered composite materials and relates to a copper-graphene layered composite plate preparation device. Background Art

[0002] Copper, with its high electrical and thermal conductivity, is currently the most important conductive material in power systems. Graphene, a new two-dimensional planar material, possesses excellent mechanical properties and ultra-high carrier mobility. Therefore, combining graphene with copper could create a new type of highly conductive composite material.

[0003] In the preparation of copper-graphene composite sheets, graphene powder is often mixed with copper powder. After plastic processing and forming, it is difficult to obtain an ordered layered structure, and therefore it is difficult to obtain ideal electrical properties. Layered copper-graphene composite sheets are often statically hot-pressed using a hot press, which has low efficiency, small size, and generally has the problem of uneven thickness. The Chinese patent application with publication number CN118060332A discloses a method for preparing long continuous graphene-copper composite materials. However, in this method, the heating modules are respectively present in independent heating units and rolling units. Under heating and winding conditions, the copper foil running in the middle will soften and stretch, and there is a risk of copper foil breakage, making it difficult to guarantee quality. Utility Model Content

[0004] The purpose of the utility model is to provide a copper-graphene layered composite plate preparation device, which is used to solve the technical problem that the existing device is difficult to ensure the quality of the composite plate during the preparation process.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The utility model discloses a copper-graphene layered composite plate preparation device, comprising an unwinding shaft, a heating device and a pressing device; the heating device and the pressing device are arranged tangentially, and a rolling gap is left between the tangent points of the heating device and the pressing device; the output end of the unwinding shaft is arranged opposite to the rolling gap, and is used for conveying the material to the rolling gap, winding it onto the surface of the heating device, and rolling it using the pressing device.

[0007] Furthermore, the heating device is a heating roller.

[0008] Furthermore, a heating device is provided in the heating roller.

[0009] Furthermore, the diameter of the heating roller is 20-100 cm.

[0010] Furthermore, the lamination device is a lamination roller.

[0011] Furthermore, the diameter of the lamination roller is 5-20 cm.

[0012] Furthermore, the rolling gap is 1-50 mm.

[0013] Furthermore, the copper-based graphene on the unwinding shaft has a length of 1-1000 m and a width of 1-100 cm.

[0014] Furthermore, the exterior of the copper-graphene layered composite plate preparation device is also covered with a sealing device.

[0015] Furthermore, the sealing device is filled with normal pressure protective gas or is in a vacuum environment.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The utility model discloses a device for preparing a copper-graphene layered composite plate. By arranging a heating device and a pressing device, the device can heat the multi-layered rolled copper-based graphene in the heating device and then roll it using the pressing device. By adjusting the heating temperature and the rolling pressure, the metallurgical bonding and grain growth of adjacent layers of copper foil are achieved through the deformation and crushing of the graphene, and finally a copper-graphene layered composite plate with uniform structure and performance can be obtained. The heating and pressing of the device are in the same working area and can be carried out simultaneously, which solves the problem that the existing heating modules are respectively present in independent heating units and rolling units, which easily leads to the risk of copper foil breakage and thus poor quality of the composite plate.

[0018] Furthermore, a sealing device is provided in a copper-graphene layered composite plate preparation device disclosed in the present invention, which can ensure that the plate is not affected by air during the heating and rolling process, thereby significantly improving the quality of the finished plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic structural diagram of a device for preparing a copper-graphene layered composite sheet according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the copper-graphene layered composite plate prepared by the present invention;

[0021] Among them: 1- unwinding shaft; 2- heating device; 3- pressing device; 4- sealing device. DETAILED DESCRIPTION

[0022] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0023] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0024] The first aspect of the present invention discloses a device for preparing a copper-graphene layered composite plate, comprising a reel 1, a heating device 2 and a pressing device 3; wherein the reel 1 is used to place copper-based graphene; the heating device 2 is used to reel in copper-based graphene with a certain tension and speed from the area of ​​the reel 1 and heat it; the pressing device 3 presses the copper-based graphene reeled by the heating device 2 from below; the heating device 2 and the pressing device 3 are arranged tangent to each other, and a rolling gap is left between the tangent point of the heating device 2 and the pressing device 3; the output end of the reel 1 is arranged opposite to the rolling gap.

[0025] Preferably, the heating device 2 in the present invention is a heating roller.

[0026] More preferably, a heating device is provided inside the heating roller of the present invention.

[0027] More preferably, the diameter of the heating roller in the present invention is 20-100 cm.

[0028] Preferably, the lamination device 3 in the present invention is a lamination roller.

[0029] More preferably, the diameter of the pressing roller in the present invention is 5-20 cm.

[0030] Preferably, the rolling gap between the heating device 2 and the pressing device 3 in the present invention is 1-5 cm.

[0031] Preferably, in the present invention, a sealing device 4 is provided outside the area of ​​the unwinding shaft 1, the heating device 2 and the pressing device 3. The sealing device 4 adopts normal pressure gas protection or vacuum protection. The protective gas can be N2 or Ar, so that the area of ​​the heating device 2 and the pressing device 3 is protected from the influence of air.

[0032] Preferably, the copper-based graphene on the unwinding shaft 1 has a length of 1-1000 m and a width of 1-100 cm.

[0033] The second invention of the present utility model discloses a method for preparing a copper-graphene layered composite plate using the above-mentioned copper-graphene layered composite plate preparation device, which mainly includes the following steps:

[0034] Step 1: Produce rolled copper-based graphene using roll-to-roll CVD (chemical vapor deposition) growth equipment;

[0035] Step 2: First, install a roll of copper-based graphene on the unwinding shaft 1;

[0036] Step 3: The copper-based graphene is passed through the area of ​​the unwinding shaft 1 and wound onto the heated roller under a certain tension and speed;

[0037] Step 4: heating the copper-based graphene to be composited and rolled up on the heating roller by a heating device in the heating roller;

[0038] Step 5: The rolled multi-layer copper-based graphene is pressed together by a pressing roller below the heating roller, and the metallurgical bonding and grain growth of adjacent layers of copper foil are achieved through the deformation and fragmentation of the graphene;

[0039] Step 6: After the pressing is completed, cool down to room temperature, cut the composite material at any position along the diameter direction of the vertical winding roller, and unfold it to obtain a copper-graphene layered composite sheet.

[0040] Preferably, in step 1, the copper foil used has a thickness of 5-1000 μm and a width of 1-100 cm, and the number of graphene layers obtained is 1-10.

[0041] Preferably, in step 3, the diameter of the heating roller is 20-100 cm.

[0042] Preferably, in step 4, the heating temperature is 600-1000°C.

[0043] Preferably, in step 5, the pressure applied during pressing is 1-200 MPa.

[0044] The present invention is described in further detail below with reference to the accompanying drawings:

[0045] Example 1

[0046] like Figure 1 As shown, the copper-graphene layered composite sheet preparation device disclosed in the present invention includes a reel 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the reel 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wind it onto the surface of the heating roller and roll it with the pressing roller; the sealing device 4 is covered on the outside of the entire device.

[0047] Example 2

[0048] The copper-graphene layered composite sheet preparation device disclosed in this embodiment includes an unwinding shaft 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the unwinding shaft 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wrap it around the surface of the heating roller, and roll it using the pressing roller; the sealing device 4 is coated on the outside of the entire device; wherein, the length of the copper-based graphene on the unwinding shaft 1 is 100m and the width is 10cm; the diameter of the pressing roller is 10cm; the diameter of the heating roller is 50cm.

[0049] Example 3

[0050] The copper-graphene layered composite sheet preparation device disclosed in this embodiment includes an unwinding shaft 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the unwinding shaft 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wrap it around the surface of the heating roller, and roll it using the pressing roller; the sealing device 4 is coated on the outside of the entire device; wherein, the length of the copper-based graphene on the unwinding shaft 1 is 300m and the width is 5cm; the diameter of the pressing roller is 15cm; the diameter of the heating roller is 80cm.

[0051] Example 4

[0052] The copper-graphene layered composite sheet preparation device disclosed in this embodiment includes an unwinding shaft 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the unwinding shaft 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wrap it around the surface of the heating roller and roll it with the pressing roller; the sealing device 4 is coated on the outside of the entire device; wherein, the copper-based graphene on the unwinding shaft 1 is 50m long and 20cm wide; the diameter of the pressing roller is 5cm; the diameter of the heating roller is 5cm.

[0053] Example 5

[0054] The copper-graphene layered composite sheet preparation device disclosed in this embodiment includes an unwinding shaft 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the unwinding shaft 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wrap it around the surface of the heating roller, and roll it using the pressing roller; the sealing device 4 covers the outside of the entire device; wherein, the length of the unwinding shaft 1 is 200m and the width is 30cm; the diameter of the pressing roller is 100cm; the diameter of the heating roller is 10cm.

[0055] Example 6

[0056] The copper-graphene layered composite sheet preparation device disclosed in this embodiment includes a reel 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the reel 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wrap it around the surface of the heating roller, and roll it using the pressing roller; the sealing device 4 is coated on the outside of the entire device, and a heating device is provided inside the heating roller.

[0057] Example 7

[0058] The copper-graphene layered composite sheet preparation device disclosed in this embodiment includes an unwinding shaft 1, a heating roller, a pressing roller and a sealing device 4; the heating roller and the pressing roller are arranged tangentially, and a rolling gap is left between the tangent points; wherein, the output end of the unwinding shaft 1 is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, wrap it around the surface of the heating roller and roll it using the pressing roller; the sealing device 4 is coated on the outside of the entire device, a heating device is provided in the heating roller, and the sealing device 4 is filled with a protective gas, which can be N2 or Ar.

[0059] Example 8

[0060] This embodiment discloses a method for preparing a copper-graphene layered composite plate using the copper-graphene layered composite plate preparation device of the present invention, comprising the following steps:

[0061] Step 1: Produce rolled copper-based graphene using roll-to-roll CVD (chemical vapor deposition) growth equipment;

[0062] Step 2: First, install a roll of copper-based graphene on the unwinding shaft 1;

[0063] Step 3: The copper-based graphene is passed through the area of ​​the unwinding shaft 1 and wound onto the heated roller under a certain tension and speed;

[0064] Step 4: heating the copper-based graphene to be composited and rolled up on the heating roller by a heating device in the heating roller;

[0065] Step 5: The 20 layers of copper-based graphene formed by the roll are pressed together by the pressing roller below the heating roller, and the metallurgical bonding and grain growth of adjacent layers of copper foil are achieved through the deformation and fragmentation of the graphene;

[0066] Step 6: After the pressing is completed, cool down to room temperature, cut the composite material at any position along the diameter direction of the vertical winding roller, and unfold it to obtain a copper-graphene layered composite sheet.

[0067] In step 1, the copper foil used has a thickness of 150 μm and a width of 4 cm, and the number of graphene layers obtained is 2.

[0068] In step 3, the diameter of the heating roller is 80 cm.

[0069] In step 4, the heating temperature is 900°C.

[0070] In step 5, the pressure applied during pressing is 50 MPa, and the rolling gap is 1 cm.

[0071] Example 9

[0072] This embodiment discloses a method for preparing a copper-graphene layered composite plate using the copper-graphene layered composite plate preparation device of the present invention, comprising the following steps:

[0073] Step 1: Produce rolled copper-based graphene using roll-to-roll CVD (chemical vapor deposition) growth equipment;

[0074] Step 2: First, install a roll of copper-based graphene on the unwinding shaft 1;

[0075] Step 3: The copper-based graphene is passed through the area of ​​the unwinding shaft 1 and wound onto the heated roller under a certain tension and speed;

[0076] Step 4: heating the copper-based graphene to be composited and rolled up on the heating roller by a heating device in the heating roller;

[0077] Step 5: The 100 layers of copper-based graphene formed by the roll are pressed together by the pressing roller under the heating roller, and the metallurgical bonding and grain growth of adjacent layers of copper foil are achieved through the deformation and fragmentation of the graphene;

[0078] Step 6: After the pressing is completed, cool down to room temperature, cut the composite material at any position along the diameter direction of the vertical winding roller, and unfold it to obtain a copper-graphene layered composite sheet.

[0079] In step 1, the copper foil used has a thickness of 100 μm and a width of 2 cm, and the number of graphene layers obtained is 1.

[0080] In step 3, the diameter of the heating roller is 30 cm.

[0081] In step 4, the heating temperature is 800°C.

[0082] In step 5, the pressure applied during pressing is 60 MPa, and the rolling gap is 2 cm.

[0083] Example 10

[0084] This embodiment discloses a method for preparing a copper-graphene layered composite plate using the copper-graphene layered composite plate preparation device of the present invention, comprising the following steps:

[0085] Step 1: Produce rolled copper-based graphene using roll-to-roll CVD (chemical vapor deposition) growth equipment;

[0086] Step 2: First, install a roll of copper-based graphene on the unwinding shaft 1;

[0087] Step 3: The copper-based graphene is passed through the area of ​​the unwinding shaft 1 and wound onto the heated roller under a certain tension and speed;

[0088] Step 4: heating the copper-based graphene to be composited and rolled up on the heating roller by a heating device in the heating roller;

[0089] Step 5: The 50 layers of copper-based graphene formed by the roll are pressed together by the pressing roller below the heating roller, and the metallurgical bonding and grain growth of adjacent layers of copper foil are achieved through the deformation and fragmentation of the graphene;

[0090] Step 6: After the pressing is completed, cool down to room temperature, cut the composite material at any position along the diameter direction of the vertical winding roller, and unfold it to obtain a copper-graphene layered composite sheet.

[0091] In step 1, the copper foil used has a thickness of 80 μm and a width of 40 cm, and the number of graphene layers obtained is 3.

[0092] In step 3, the diameter of the heating roller is 70 cm.

[0093] In step 4, the heating temperature is 850°C.

[0094] In step 5, the pressure applied during pressing is 100 MPa, and the rolling gap is 1 cm.

[0095] The cross-sectional structure of the composite plate prepared by the copper-graphene layered composite plate preparation device of the utility model is as follows: Figure 2 As shown, it can be seen that copper and graphene are closely stacked, arranged in order, and have uniform thickness.

[0096] The above content is only for explaining the technical idea of ​​the present invention and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution in accordance with the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A copper-graphene layered composite plate preparation device, characterized in that: The invention comprises an unwinding shaft (1), a heating device (2) and a pressing device (3); the heating device (2) and the pressing device (3) are arranged tangentially, and a rolling gap is left between the tangent points of the heating device (2) and the pressing device (3); the output end of the unwinding shaft (1) is arranged opposite to the rolling gap, and is used to transport the material to the rolling gap, to be wound onto the surface of the heating device (2), and to be rolled using the pressing device (3).

2. The copper-graphene layered composite sheet manufacturing device according to claim 1, characterized in that: The heating device (2) is a heating roller.

3. The copper-graphene layered composite sheet manufacturing device according to claim 2, characterized in that: A heating device is provided inside the heating roller.

4. The copper-graphene layered composite sheet manufacturing device according to claim 3, characterized in that: The diameter of the heating roller is 20-100 cm.

5. The copper-graphene layered composite sheet manufacturing device according to claim 1, characterized in that: The pressing device (3) is a pressing roller.

6. The copper-graphene layered composite plate preparation device according to claim 5, characterized in that: The diameter of the pressing roller is 5-20 cm.

7. The copper-graphene layered composite plate preparation device according to claim 1, characterized in that: The rolling gap is 1-50 mm.

8. The copper-graphene layered composite plate preparation device according to claim 1, characterized in that: The copper-based graphene on the unwinding shaft (1) has a length of 1-1000 m and a width of 1-100 cm.

9. The copper-graphene layered composite plate preparation device according to claim 1, characterized in that: The exterior of the copper-graphene layered composite plate preparation device is also coated with a sealing device (4).

10. The copper-graphene layered composite plate preparation device according to claim 9, characterized in that: The sealing device (4) is filled with normal pressure protective gas or is in a vacuum environment.

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