Aluminum foil double-sided uniform coating device

Abstract

The utility model discloses an aluminum foil double-sided uniform coating device which comprises an electrolyte tank I, an electrolyte tank II, a roller component I, a roller component II and a power supply, the first roller assemblies are located outside the first electrolyte pool and the second electrolyte pool, and the first electrolyte pool and the second electrolyte pool are each internally provided with a second roller assembly. And the aluminum foil sequentially passes through the electrolyte tank I and the electrolyte tank II. At least two adjacent rollers in the second roller assembly are horizontally arranged, the first electrolyte pool and the second electrolyte pool are each provided with one electrode plate assembly, the electrode plate assemblies are located between the two horizontally-arranged adjacent rollers, and the two plate-shaped electrodes are parallel to the aluminum foil and have the same distance with the aluminum foil. According to the aluminum foil double-sided uniform coating device disclosed by the utility model, the two plate-shaped electrodes are arranged on the two sides of the aluminum foil at equal intervals, so that the distances between the two sides of the aluminum foil positioned in the oxidation treatment section and the plate-shaped electrodes are equal; the uniform electric field between the two sides of the aluminum foil and the plate-shaped electrode makes the ceramic film layers growing on the two sides of the aluminum foil more uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of thermo-electrochemical oxidation, in particular to a device for uniformly coating double-sided aluminum foil. Background Art

[0002] Patent application CN2021116747753 discloses a device that can coat both sides of aluminum foil, but this method of directly passing through the electrolyte cell is only applicable to narrow aluminum foil strips. When the aluminum foil is wider, it requires a larger opening on the electrolyte cell, making it difficult to seal the holes on the side walls of the electrolyte cell. Patent application CN2021116747895 discloses a device for performing thermal electrochemical oxidation treatment on aluminum foil, which can grow ceramic film layers on both sides of the aluminum foil, but the aluminum foil has only one vertex angle relative to the electrode plate, and only one side is opposite to the electrode plate, resulting in uneven film thickness on both sides of the aluminum foil. Utility Model Content

[0003] The utility model provides an aluminum foil double-sided uniform coating device to solve the problem of double-sided coating of wide aluminum foil strip existing in the prior art that it is difficult to uniformly coat both sides at the same time.

[0004] The technical solution of the utility model is as follows:

[0005] A device for uniformly coating double-sided aluminum foil comprises an electrolyte cell 1, an electrolyte cell 2, a roller assembly 1, a roller assembly 2 and a power source; the electrolyte cell 1 and the electrolyte cell 2 contain electrolyte; the roller assembly 1 and the roller assembly 2 both comprise a plurality of rollers, the roller assembly 1 is located outside the electrolyte cell 1 and the electrolyte cell 2, and the electrolyte cell 1 and the electrolyte cell 2 each have a group of roller assemblies 2; the aluminum foil passes through the electrolyte cell 1 and the electrolyte cell 2 in sequence, and when passing through the electrolyte cell 1 and the electrolyte cell 2, the aluminum foil passes through the upper part of the roller in the roller assembly 1 and passes through the roller in the roller assembly 2 The lower part of the roller passes; at least two adjacent rollers are horizontally arranged in the roller assembly 2, and there is a group of electrode plate assemblies in the electrolyte tank 1 and the electrolyte tank 2 respectively, the electrode plate assembly is immersed in the electrolyte, and the electrode plate assembly is located between two horizontally arranged adjacent rollers, and the electrode plate assembly includes two horizontally arranged plate electrodes, the two plate electrodes are located on both sides of the aluminum foil, the two plate electrodes are parallel to the aluminum foil and have the same spacing, and the plate electrodes in the same group of electrode plate assemblies are connected together by a conductor; the electrode plate assemblies in the electrolyte tank 1 and the electrolyte tank 2 are connected to the two poles of the power supply.

[0006] Furthermore, the roller assembly 1 includes three rollers, and the three rollers in the roller assembly 1 are horizontally arranged.

[0007] Furthermore, the roller assembly 2 includes two rollers, and the two rollers in the roller assembly 2 are horizontally arranged.

[0008] Furthermore, the power source is a micro-arc oxidation power source or a thermo-electrochemical oxidation power source.

[0009] Furthermore, the plate-shaped electrode is a stainless steel plate.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] The utility model discloses an aluminum foil double-sided uniform coating device, which arranges two plate-shaped electrodes at equal intervals on both sides of the aluminum foil so that the distances between the two sides of the aluminum foil in the oxidation treatment section and the plate-shaped electrodes are equal, thereby growing a ceramic film layer of uniform thickness on both sides of the aluminum foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of a device for uniformly coating double-sided aluminum foil in an embodiment of the utility model. DETAILED DESCRIPTION

[0013] Example

[0014] like Figure 1 As shown, a double-sided coating device for aluminum foil includes an electrolyte cell 1 4, an electrolyte cell 2 5, a roller assembly 1 2, a roller assembly 2 3 and a power source (not shown). The electrolyte cell 1 4 and the electrolyte cell 2 5 contain electrolyte. The roller assembly 1 2 includes three horizontally arranged rollers, one of which is located between the electrolyte cell 1 4 and the electrolyte cell 2 5, and two of which are respectively located outside the side panels of the electrolyte cell 1 4 and the electrolyte cell 2 5. The electrolyte cell 1 4 and the electrolyte cell 2 5 each have a group of roller assemblies 2 3, and the roller assembly 2 3 includes two horizontally arranged rollers. Under the traction of the winding device, the aluminum foil 1 passes through the electrolyte cell 1 4 and the electrolyte cell 2 5 in sequence. When the aluminum foil 1 passes through the electrolyte cell 1 4 and the electrolyte cell 2 5, the aluminum foil 1 passes through the upper part of the roller in the roller assembly 1 2 and passes through the lower part of the roller in the roller assembly 2 3.

[0015] There is a group of electrode plate assemblies 6 in each of the electrolyte pool 1 4 and the electrolyte pool 2 5. The electrode plate assembly 6 is immersed in the electrolyte and is located between two horizontally arranged adjacent rollers. The electrode plate assembly 6 includes two horizontally arranged plate-shaped electrodes, which are stainless steel plates. The two plate-shaped electrodes are located on both sides of the aluminum foil 1. The two plate-shaped electrodes are parallel to the aluminum foil 1 and have the same spacing. The plate-shaped electrodes in the same group of electrode plate assemblies 6 are connected together through a conductor. The electrode plate assemblies 6 in the electrolyte pool 1 4 and the electrolyte pool 2 5 are respectively connected to the two poles of the power supply, which is a micro-arc oxidation power supply or a thermoelectrochemical oxidation power supply.

[0016] By arranging two plate electrodes at equal intervals on both sides of the aluminum foil, the distance between the two sides of the aluminum foil in the oxidation treatment section and the plate electrodes is equal. During the oxidation treatment, the electric field distribution between the plate electrodes and the aluminum foil is more uniform. The uniform electric field between the two sides of the aluminum foil and the plate electrodes makes the ceramic film layer grown on both sides of the aluminum foil more uniform.

Claims

1. A device for uniformly coating double-sided aluminum foil, characterized in that: The invention comprises an electrolyte cell 1, an electrolyte cell 2, a roller assembly 1, a roller assembly 2 and a power source; the electrolyte cell 1 and the electrolyte cell 2 contain electrolyte; the roller assembly 1 and the roller assembly 2 both comprise a plurality of rollers, the roller assembly 1 is located outside the electrolyte cell 1 and the electrolyte cell 2, and the electrolyte cell 1 and the electrolyte cell 2 each have a group of roller assemblies 2; the aluminum foil passes through the electrolyte cell 1 and the electrolyte cell 2 in sequence, and when passing through the electrolyte cell 1 and the electrolyte cell 2, the aluminum foil passes through the upper part of the roller in the roller assembly 1 and passes through the lower part of the roller in the roller assembly 2 ; At least two adjacent rollers are horizontally arranged in roller assembly two, and there is a group of electrode plate assemblies in electrolyte tank one and electrolyte tank two respectively, the electrode plate assembly is immersed in the electrolyte, and the electrode plate assembly is located between two horizontally arranged adjacent rollers, and the electrode plate assembly includes two horizontally arranged plate electrodes, the two plate electrodes are located on both sides of the aluminum foil, the two plate electrodes are parallel to the aluminum foil and have the same spacing, and the plate electrodes in the same group of electrode plate assemblies are connected together by a conductor; the electrode plate assemblies in electrolyte tank one and electrolyte tank two are connected to the two poles of the power supply.

2. The device for uniformly coating double-sided aluminum foil according to claim 1, characterized in that: The roller assembly 1 includes three rollers, and the three rollers in the roller assembly 1 are arranged horizontally.

3. The device for uniformly coating double-sided aluminum foil according to claim 1, characterized in that: The roller assembly 2 comprises two rollers, and the two rollers in the roller assembly 2 are arranged horizontally.

4. The device for uniformly coating double-sided aluminum foil according to claim 1, characterized in that: The power source is a micro-arc oxidation power source or a thermo-electrochemical oxidation power source.

5. The device for uniformly coating double-sided aluminum foil according to claim 1, characterized in that: The plate-shaped electrode is a stainless steel plate.

Images