CN117966222A - Foil producing device - Google Patents
Foil producing device Download PDFInfo
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- CN117966222A CN117966222A CN202410037050.0A CN202410037050A CN117966222A CN 117966222 A CN117966222 A CN 117966222A CN 202410037050 A CN202410037050 A CN 202410037050A CN 117966222 A CN117966222 A CN 117966222A
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- liquid inlet
- inlet channel
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- liquid
- anode
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- 239000011888 foil Substances 0.000 title claims abstract description 39
- 239000007788 liquid Substances 0.000 claims abstract description 288
- 239000003792 electrolyte Substances 0.000 claims abstract description 43
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 53
- 239000011889 copper foil Substances 0.000 abstract description 39
- 239000002253 acid Substances 0.000 abstract description 20
- 230000002411 adverse Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 17
- 239000010949 copper Substances 0.000 description 14
- 229910052802 copper Inorganic materials 0.000 description 14
- 230000008569 process Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 229910000365 copper sulfate Inorganic materials 0.000 description 7
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 7
- 239000000654 additive Substances 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000003746 surface roughness Effects 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 3
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910001431 copper ion Inorganic materials 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004090 dissolution Methods 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000002161 passivation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002999 depolarising effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Electrolytic Production Of Metals (AREA)
Abstract
The application provides a foil producing device, which at least comprises an anode groove and a cathode roller; at least part of the cathode roller is positioned in the anode groove, and electrolyte is arranged between the surface of one side of the cathode roller facing the anode groove and the anode groove; further comprises: at least one liquid inlet, the liquid inlet is communicated with the anode tank, and the position of the liquid inlet is higher than the position of the inlet of the anode tank. The application can solve the problem of excessive bubbles in the electrolyte, and further can reduce or avoid the technical problem that a large amount of bubbles and acid gas can bring adverse effects to the roughness of the copper foil.
Description
Technical Field
The application relates to the technical field of copper foil manufacturing equipment, in particular to foil producing equipment.
Background
In the copper foil production industry, the production process of electrolytic copper foil mainly comprises copper dissolution, foil production, surface treatment and slitting. Specifically, the copper dissolving process mainly comprises the steps of putting a copper raw material into an acid environment to be dissolved into copper sulfate electrolyte, and the foil producing process comprises the steps of utilizing electrolytic reaction to convert copper ions in the electrolyte solution into copper simple substances and depositing the copper simple substances on a titanium cathode roller, and then removing the copper simple substances to form the copper foil. The roughness of the copper foil surface greatly affects the performance of the copper foil.
In the related art, the copper sulfate electrolyte flows in from the bottom end of the anode tank in the foil producing device, flows out from the upper port of the anode tank and returns to the copper dissolving system. In the circulation process, the copper sulfate electrolyte can bring a large amount of oxygen bubbles generated by the electrolytic reaction to the surface of the copper foil, and a lot of acid gas is contained in the bubbles, and the number of the bubbles from the bottom end of the anode tank to the surface of the cathode roller is increased, so that the roughness of the copper foil can be adversely affected by a large amount of bubbles and acid gas.
Disclosure of Invention
Based on the above, the application provides a foil producing device, which can solve the problem that excessive bubbles are generated in electrolyte, and further can reduce or avoid the technical problem that a large amount of bubbles and acid gas can bring adverse effects to the roughness of the copper foil.
The present application provides a foil producing apparatus comprising at least: an anode tank and a cathode roller;
At least part of the cathode roller is positioned in the anode groove, and electrolyte is arranged between the surface of the cathode roller facing the anode groove and the anode groove;
further comprises: and the liquid inlet is communicated with the anode tank, and the position of the liquid inlet is higher than that of the inlet of the anode tank.
In one possible implementation, the method further includes: at least two liquid inlet channels;
The first end of each liquid inlet channel is communicated with the liquid inlet, and the second end of each liquid inlet channel is communicated with the anode groove.
In one possible implementation, the liquid inlet amounts of at least two liquid inlet channels are different.
In one possible implementation manner, the number of the liquid inlet channels is two, and the two liquid inlet channels are a first liquid inlet channel and a second liquid inlet channel respectively;
The second end of the first liquid inlet channel is higher than the second end of the second liquid inlet channel, and the liquid inlet amount of the first liquid inlet channel is smaller than the liquid inlet amount of the second liquid inlet channel.
In one possible implementation, the first liquid inlet channel and the second liquid inlet channel are located on two sides of the anode tank respectively.
In one possible implementation, the first and second feed channels are located on the same side of the anode cell.
In one possible implementation manner, the number of the liquid inlet channels is six, and the six liquid inlet channels are a first liquid inlet channel, a second liquid inlet channel, a third liquid inlet channel, a fourth liquid inlet channel, a fifth liquid inlet channel and a sixth liquid inlet channel respectively;
the first liquid inlet channel, the third liquid inlet channel and the fifth liquid inlet channel are positioned on one side of the anode groove, and the second liquid inlet channel, the fourth liquid inlet channel and the sixth liquid inlet channel are positioned on the other side of the anode groove;
The position of the second end of the first liquid inlet channel and the position of the second end of the second liquid inlet channel are higher than the position of the second end of the third liquid inlet channel and the position of the second end of the fourth liquid inlet channel, and the position of the second end of the third liquid inlet channel and the position of the second end of the fourth liquid inlet channel are higher than the position of the second end of the fifth liquid inlet channel and the position of the second end of the sixth liquid inlet channel;
And the liquid inlet amount of the first liquid inlet channel and the liquid inlet amount of the second liquid inlet channel are smaller than the liquid inlet amount of the third liquid inlet channel and the liquid inlet amount of the fourth liquid inlet channel, and the liquid inlet amount of the third liquid inlet channel and the liquid inlet amount of the fourth liquid inlet channel are smaller than the liquid inlet amount of the fifth liquid inlet channel and the liquid inlet amount of the sixth liquid inlet channel.
In one possible implementation manner, the first liquid inlet channel and the second liquid inlet channel are oppositely arranged at two sides of the anode tank, the position of the second end of the first liquid inlet channel and the position of the second end of the second liquid inlet channel are positioned at the same horizontal plane, and the liquid inlet amount of the first liquid inlet channel and the liquid inlet amount of the second liquid inlet channel are the same;
The third liquid inlet channel and the fourth liquid inlet channel are oppositely arranged at two sides of the anode groove, the position of the second end of the third liquid inlet channel and the position of the second end of the fourth liquid inlet channel are positioned at the same horizontal plane, and the liquid inlet amount of the third liquid inlet channel is the same as the liquid inlet amount of the fourth liquid inlet channel;
the fifth liquid inlet channel and the sixth liquid inlet channel are oppositely arranged at two sides of the anode groove, the position of the second end of the fifth liquid inlet channel and the position of the second end of the sixth liquid inlet channel are positioned on the same horizontal plane, and the liquid inlet amount of the fifth liquid inlet channel is the same as the liquid inlet amount of the sixth liquid inlet channel.
In a possible implementation manner, the first end of each liquid inlet channel is further provided with a flow limiting device;
the flow limiting device is used for controlling the liquid inlet amount of the liquid inlet channel.
In one possible implementation, the method further includes: and the liquid outlet is communicated with the anode groove, and the position of the liquid outlet is lower than that of the outlet of the anode groove.
According to the foil producing equipment provided by the application, at least part of the cathode roller is positioned in the anode groove, electrolyte is arranged between one side surface of the cathode roller facing the anode groove and the anode groove, and at least one liquid inlet communicated with the anode groove is designed, so that the liquid inlet is higher than the inlet of the anode groove, the electrolyte enters the anode groove from a higher position, the electrolyte has very high kinetic energy when entering the anode groove at a higher position, not only can the generation of bubbles and acid gas in the electrolyte be reduced, but also the flowing speed of the electrolyte can be accelerated, so that generated bubbles can be taken away as soon as possible, the adverse effect of the acid gas and the bubbles on the surface roughness of the copper foil can be improved, meanwhile, the oxidation of the acid gas and the bubbles on the copper foil can be avoided, and the overall performance of the copper foil can be greatly improved.
Therefore, the application can solve the problem of excessive bubbles in the electrolyte, and further can reduce or avoid the technical problem that a large amount of bubbles and acid gas can bring adverse effects to the roughness of the copper foil.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a foil producing apparatus according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a flow-limiting device in a liquid inlet channel in a foil producing apparatus according to an embodiment of the present application.
Reference numerals illustrate:
100-foil producing apparatus;
110-an anode cell;
1101-electrolyte;
111-inlet of anode cell;
112-outlet of the anode cell;
120-cathode roller;
130-liquid inlet;
1301-elevated tank;
131-a first liquid inlet channel;
1311—a first end of a first feed channel;
1312-a second end of the first feed channel;
132-a second feed channel;
1321-a first end of a second fluid inlet channel;
1322-a second end of a second fluid inlet channel;
133-a third feed channel;
1331-a first end of a third feed channel;
1332-a second end of the third feed channel;
134-fourth liquid inlet channel;
1341-a first end of a fourth feed channel;
1342-a second end of the fourth feed channel;
135-a fifth feed channel;
1351-a first end of a fifth feed channel;
1352-a second end of the fifth feed passage;
136-sixth liquid inlet channel;
1361-a first end of the sixth liquid inlet passage;
1362-a second end of the sixth liquid inlet passage;
140-a current limiting device;
141-a blocking member;
142-a throttling element;
143-a pressure-introducing pipeline;
144-valve;
145-differential pressure gauge;
150-a liquid outlet;
151-a reservoir;
160-grinding and brushing rollers;
170-a stripping roller;
180-edge cutting device;
190-passivation tank;
200-liquid extruding device;
210-winding device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions in the preferred embodiments of the present application will be described in more detail with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the application. The embodiments described below by referring to the drawings are illustrative and intended to explain the present application and should not be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
In the description of the present application, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, indirectly connected through an intermediary, or may be in communication with each other between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship of the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application.
The terms first, second, third and the like in the description and in the claims and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or display that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or display.
In the copper foil production industry, the production process of electrolytic copper foil mainly comprises copper dissolution, foil production, surface treatment and slitting. The copper dissolving process mainly comprises the steps of putting a copper raw material into an acid environment to be dissolved into copper sulfate electrolyte, and the foil producing process comprises the steps of utilizing electrolytic reaction to convert copper ions in the electrolyte solution into copper simple substances and depositing the copper simple substances on a titanium cathode roller, and then removing the copper simple substances to form the copper foil.
The roughness of the copper foil surface greatly affects the performance of the copper foil. In order to improve the roughness of the copper foil surface, some additives are generally added in the related art, and part of the additives can play roles of depolarizing and refining grains, so that the roughness of the copper foil surface is greatly reduced, but the method is complex in process, the amount of the additives is difficult to accurately control, in addition, the residual additives can influence the purity of the copper sulfate electrolyte, so that the roughness of the copper foil surface is influenced, and a precise filter is required to be arranged for filtering, so that the production cost is further increased.
In addition, in the related art, the copper sulfate electrolyte flows in from the bottom end of the anode tank, flows out from the upper port of the anode tank and returns to the copper dissolving system again, and in the circulation process, the electrolyte can bring a large amount of oxygen bubbles generated by the electrolytic reaction to the surface of the copper foil, and a large amount of acid gas is also contained in the bubbles, and the number of bubbles from the bottom end of the anode tank to the surface of the cathode roller can be increased, so that the roughness of the copper foil can be adversely affected by a large amount of bubbles and acid gas. In order to solve the problem of acid gas generation, an exhaust outlet is generally required to be arranged in the anode tank, but the problem to be solved is to control the quantity and uniformity of bubble generation due to the inherent defects of the upper liquid inlet mode.
Therefore, a new foil producing device is needed to improve the service performance of the foil producing device, solve the problem that bubbles in the electrolyte of the foil producing device in the prior art are too much, and provide a new idea for adjusting the surface roughness of the copper foil.
Through repeated thinking and verification, the inventor designs a new foil producing device to solve the defects of the related technology. In particular, compared with the method for adjusting the surface state of the copper foil by using the additive in the related art, the method for adjusting the surface state of the copper foil by using the reverse segmented liquid feeding device provided by the embodiment of the application has the advantages of low cost, simple mechanism and good effect, and enriches the thought of adjusting the surface state of the copper foil.
The technical scheme of the novel foil producing device provided by the embodiment of the application is described in detail below with reference to the accompanying drawings.
Referring to fig. 1, an embodiment of the present application provides a foil producing apparatus 100, where the foil producing apparatus 100 may include at least an anode tank 110 and a cathode roller 120, wherein at least a portion of the cathode roller 120 is located in the anode tank 110, and an electrolyte 1101 is provided between a surface of the cathode roller 120 facing the anode tank 110 and the anode tank 110.
The foil producing apparatus 100 may further comprise at least one liquid inlet 130, wherein the liquid inlet 130 is in communication with the anode cell 110 and wherein the liquid inlet 130 is located higher than the inlet 111 of the anode cell.
In the prior art, the electrolyte 1101 flows in from the bottom end of the anode tank 110 and flows out from the upper end of the anode tank 110, and the embodiment of the application can reduce the generation of bubbles in the electrolyte 1101 by adopting a reverse liquid inlet mode, namely, the liquid inlet from the upper end of the anode tank 110, so that the generated bubbles are less, the generated acid gas is less, in addition, the flow speed of the electrolyte 1101 can be accelerated by the reverse liquid inlet, and the generated bubbles and the generated acid gas can be quickly taken out, so that the influence of the acid gas and the bubbles on the oxidation and the roughness of the copper foil surface can be effectively reduced.
Additionally, in some embodiments, an elevated tank 1301 may be provided at the inlet 130, the electrolyte 1101 may be stored within the elevated tank 1301, or the electrolyte 1101 may be directly fed from within the elevated tank 1301 into the inlet 130.
In an embodiment of the present application, the foil producing apparatus 100 may further comprise at least two liquid inlet channels, wherein a first end of each liquid inlet channel is in communication with the liquid inlet 130 and a second end of each liquid inlet channel is in communication with the anode tank 110. Specifically, the second end of each feed channel may be in communication with the inlet 111 of the anode cell.
It should be noted that, in the embodiment of the present application, the liquid inlet amounts of at least two liquid inlet channels are different.
For example, the liquid inlets of the two liquid inlets may be different, the liquid inlets of the three liquid inlets may be different, or the liquid inlets of the four liquid inlets may be different.
In an exemplary embodiment of the present application, the number of the liquid inlet channels may be two, and the two liquid inlet channels are a first liquid inlet channel and a second liquid inlet channel, where the second end of the first liquid inlet channel is higher than the second end of the second liquid inlet channel, and the liquid inlet amount of the first liquid inlet channel is smaller than the liquid inlet amount of the second liquid inlet channel.
It can be understood that the liquid inlet amount of the liquid inlet channel at the higher position is designed to be smaller than that of the liquid inlet channel at the lower position, and the electrolyte 1101 at the higher position has more bubbles due to the fact that the electrolyte 1101 at the lower position has fewer bubbles in the electrolyte 1101 of the anode tank 110, so that the uniformity of bubbles generated in the electrolyte 1101 can be greatly improved by adopting a gradient type sectional liquid inlet mode, and positive influence can be brought to the density and the surface roughness of the copper foil.
It should be noted that, in the embodiment of the present application, the first liquid inlet channel and the second liquid inlet channel may be located at two sides of the anode tank 110, or the first liquid inlet channel and the second liquid inlet channel may also be located at the same side of the anode tank 110, which is not limited in the embodiment of the present application, so long as the gradient type sectional liquid inlet can be embodied.
Also, in the embodiment of the present application, the number of the liquid inlet channels may be three, four, five, six, seven, eight or more, and the plurality of liquid inlet channels may be distributed on two sides of the anode tank 110 or may be distributed on the same side of the anode tank 110, which is not limited in this embodiment of the present application.
Specifically, referring to fig. 1, in the embodiment of the present application, the number of the liquid inlet channels is six, and the six liquid inlet channels are a first liquid inlet channel 131, a second liquid inlet channel 132, a third liquid inlet channel 133, a fourth liquid inlet channel 134, a fifth liquid inlet channel 135 and a sixth liquid inlet channel 136, respectively. Wherein the first, third and fifth liquid inlet channels 131, 133 and 135 are located at one side of the anode tank 110, and the second, fourth and sixth liquid inlet channels 132, 134 and 136 are located at the other side of the anode tank 110.
Specifically, as shown in fig. 1, the first end 1311 of the first liquid inlet channel, the first end 1321 of the second liquid inlet channel, the first end 1331 of the third liquid inlet channel, the first end 1341 of the fourth liquid inlet channel, the first end 1351 of the fifth liquid inlet channel, and the first end 1361 of the sixth liquid inlet channel may be in communication with the liquid inlet 130 of the foil device 100, and the second end 1312 of the first liquid inlet channel, the second end 1322 of the second liquid inlet channel, the second end 1332 of the third liquid inlet channel, the second end 1342 of the fourth liquid inlet channel, the second end 1352 of the fifth liquid inlet channel, and the second end 1362 of the sixth liquid inlet channel may be in communication with the inlet 111 of the anode tank.
The position of the second end 1312 of the first feed channel and the position of the second end 1322 of the second feed channel are higher than the position of the second end 1332 of the third feed channel and the position of the second end 1342 of the fourth feed channel, the position of the second end 1332 of the third feed channel and the position of the second end 1342 of the fourth feed channel are higher than the position of the second end 1352 of the fifth feed channel and the position of the second end 1362 of the sixth feed channel, and the feed rate of the first feed channel 131 and the feed rate of the second feed channel 132 are smaller than the feed rate of the third feed channel 133 and the feed rate of the fourth feed channel 134, and the feed rate of the third feed channel 133 and the feed rate of the fourth feed channel 134 are smaller than the feed rate of the fifth feed channel 135 and the feed rate of the sixth feed channel 136.
In the embodiment of the present application, the first liquid inlet channel 131 and the second liquid inlet channel 132 are oppositely disposed at two sides of the anode tank 110, the second end 1312 of the first liquid inlet channel and the second end 1322 of the second liquid inlet channel are located at the same horizontal plane, and the liquid inlet amount of the first liquid inlet channel 131 is the same as the liquid inlet amount of the second liquid inlet channel 132.
The third liquid inlet channel 133 and the fourth liquid inlet channel 134 are oppositely arranged at two sides of the anode tank 110, the second end 1332 of the third liquid inlet channel and the second end 1342 of the fourth liquid inlet channel are positioned at the same horizontal plane, and the liquid inlet amount of the third liquid inlet channel 133 is the same as the liquid inlet amount of the fourth liquid inlet channel 134.
The fifth feed channel 135 and the sixth feed channel 136 are disposed opposite to each other on both sides of the anode tank 110, and the second end 1352 of the fifth feed channel and the second end 1362 of the sixth feed channel are disposed on the same horizontal plane, and the liquid intake amount of the fifth feed channel 135 is the same as the liquid intake amount of the sixth feed channel 136.
Referring to fig. 2, in an embodiment of the present application, the first end of each liquid inlet channel may further be provided with a flow limiting device 140, where the flow limiting device 140 is used to control the liquid inlet amount of the liquid inlet channel.
Specifically, the flow limiting device 140 may include a blocking member 141, a throttling element 142, a pressure guiding pipeline 143, a differential pressure gauge 145, and at least one valve 144, as shown in fig. 2, where the flow limiting device 140 includes the blocking member 141, the throttling element 142, the pressure guiding pipeline 143, the differential pressure gauge 145, and three valves 144, the blocking member 141 is disposed on an inner wall of the liquid inlet channel, the throttling element 142 can freely move up and down, left and right inside the blocking member 141, so as to control the flow of the liquid, the valves 144 are used for controlling opening or closing of each pipeline on the pressure guiding pipeline 143, and the differential pressure gauge 145 is used for displaying the flow.
In the embodiment of the present application, the front ends of the six liquid inlet positions may be provided with the flow limiting device 140 as shown in fig. 2, the flow limiting device 140 reduces the cross-sectional area of the liquid passing through to form a pressure difference on two sides of the throttling element 142, and the differential pressure gauge 145 can utilize the pressure difference on two sides to accurately control the flow of the electrolyte 1101.
For example, six liquid feeding positions can be fed with liquid according to the increasing flow gradient of the electrolyte 1101 from top to bottom, for example, the first liquid feeding channel 131, the third liquid feeding channel 133 and the fifth liquid feeding channel 135 are respectively 20%, 30% and 50% of the total flow from top to bottom, and the second liquid feeding channel 132, the fourth liquid feeding channel 134 and the sixth liquid feeding channel 136 are respectively 20%, 30% and 50% of the total flow from top to bottom, so that the uniformity of bubbles generated in the electrolyte 1101 can be greatly improved by the gradient liquid feeding, and the compactness of the copper foil and the roughness of the copper foil surface can be improved.
It can be appreciated that the flow gradients of the electrolyte 1101 at different liquid inlet positions can be flexibly set according to the requirements of practical application scenarios, and the flow ratio and specific values of the electrolyte 1101 in the embodiment of the present application are not limited, so long as the gradient liquid inlet effect can be achieved.
In an embodiment of the present application, the foil producing apparatus 100 may further comprise at least one liquid outlet 150, the liquid outlet 150 being in communication with the anode tank 110, and the liquid outlet 150 being located lower than the outlet 112 of the anode tank.
In some embodiments, a liquid storage tank 151 may be disposed at the liquid outlet 150, and the electrolyte 1101 may be stored in the liquid storage tank 151 after flowing out from the liquid outlet 150.
The copper sulfate electrolyte 1101 undergoes electrolytic reaction to form copper foil, copper foil with different thickness can be obtained by controlling the current and the rotation speed of the foil producing device 100 and deposited on the surface of the cathode roller 120, wherein the brush roller 160 is used for treating substances generated by the oxidation reaction on the surface of the cathode roller 120, then the copper foil is peeled off by the peeling roller 170 and trimmed by the trimming device 180, then enters the passivation tank 190 for surface oxidation prevention treatment, and then the whole foil producing process can be completed by the liquid squeezing device 200 and the winding device 210.
According to the foil producing device 100 provided by the application, at least part of the cathode roller 120 is positioned in the anode groove 110, electrolyte 1101 is arranged between one side surface of the cathode roller 120 facing the anode groove 110 and the anode groove 110, and at least one liquid inlet 130 communicated with the anode groove 110 is designed, so that the position of the liquid inlet 130 is higher than that of the inlet 111 of the anode groove, the electrolyte 1101 enters the anode groove 110 from a higher position, the electrolyte 1101 has very high kinetic energy when being at a higher position, not only can the generation of bubbles and acid gases in the electrolyte 1101 be reduced, but also the flow speed of the electrolyte 1101 can be accelerated, so that generated bubbles can be taken away as soon as possible, further adverse effects of acid gases and bubbles on the surface roughness of a copper foil can be improved, meanwhile, oxidation of the acid gases and the bubbles to the copper foil can be avoided, and the overall performance of the copper foil can be greatly improved.
Thus, the present application can solve the problem of excessive bubbles in the electrolyte 1101, and further can alleviate or avoid the technical problem that a large amount of bubbles and acid gas can adversely affect the roughness of the copper foil.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, not for limiting the same, and although the present application has been described in detail with reference to the above embodiments, it should be understood by those of ordinary skill 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 replaced with other technical solutions, which do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A foil producing apparatus, comprising at least:
An anode tank and a cathode roller;
At least part of the cathode roller is positioned in the anode groove, and electrolyte is arranged between the surface of the cathode roller facing the anode groove and the anode groove;
further comprises: and the liquid inlet is communicated with the anode tank, and the position of the liquid inlet is higher than that of the inlet of the anode tank.
2. The foil producing apparatus of claim 1, further comprising: at least two liquid inlet channels;
The first end of each liquid inlet channel is communicated with the liquid inlet, and the second end of each liquid inlet channel is communicated with the anode groove.
3. Foil producing apparatus according to claim 2, characterized in that of the at least two feed channels, the feed amounts of at least two of the feed channels differ.
4. A foil arrangement according to claim 3, wherein the number of said feed channels is two, the two feed channels being a first feed channel and a second feed channel, respectively;
The second end of the first liquid inlet channel is higher than the second end of the second liquid inlet channel, and the liquid inlet amount of the first liquid inlet channel is smaller than the liquid inlet amount of the second liquid inlet channel.
5. Foil producing apparatus according to claim 4, characterized in that the first and the second feed channels are located on both sides of the anode cell, respectively.
6. The foil producing apparatus of claim 4, wherein the first and second feed channels are located on the same side of the anode cell.
7. Foil arrangement according to claim 2, wherein the number of liquid inlet channels is six, the six liquid inlet channels being a first liquid inlet channel, a second liquid inlet channel, a third liquid inlet channel, a fourth liquid inlet channel, a fifth liquid inlet channel and a sixth liquid inlet channel, respectively;
the first liquid inlet channel, the third liquid inlet channel and the fifth liquid inlet channel are positioned on one side of the anode groove, and the second liquid inlet channel, the fourth liquid inlet channel and the sixth liquid inlet channel are positioned on the other side of the anode groove;
The position of the second end of the first liquid inlet channel and the position of the second end of the second liquid inlet channel are higher than the position of the second end of the third liquid inlet channel and the position of the second end of the fourth liquid inlet channel, and the position of the second end of the third liquid inlet channel and the position of the second end of the fourth liquid inlet channel are higher than the position of the second end of the fifth liquid inlet channel and the position of the second end of the sixth liquid inlet channel;
And the liquid inlet amount of the first liquid inlet channel and the liquid inlet amount of the second liquid inlet channel are smaller than the liquid inlet amount of the third liquid inlet channel and the liquid inlet amount of the fourth liquid inlet channel, and the liquid inlet amount of the third liquid inlet channel and the liquid inlet amount of the fourth liquid inlet channel are smaller than the liquid inlet amount of the fifth liquid inlet channel and the liquid inlet amount of the sixth liquid inlet channel.
8. The foil producing apparatus of claim 7, wherein the first and second liquid feed channels are disposed opposite each other on both sides of the anode cell, the position of the second end of the first liquid feed channel and the position of the second end of the second liquid feed channel are in the same horizontal plane, and the liquid feed amount of the first liquid feed channel and the liquid feed amount of the second liquid feed channel are the same;
The third liquid inlet channel and the fourth liquid inlet channel are oppositely arranged at two sides of the anode groove, the position of the second end of the third liquid inlet channel and the position of the second end of the fourth liquid inlet channel are positioned at the same horizontal plane, and the liquid inlet amount of the third liquid inlet channel is the same as the liquid inlet amount of the fourth liquid inlet channel;
the fifth liquid inlet channel and the sixth liquid inlet channel are oppositely arranged at two sides of the anode groove, the position of the second end of the fifth liquid inlet channel and the position of the second end of the sixth liquid inlet channel are positioned on the same horizontal plane, and the liquid inlet amount of the fifth liquid inlet channel is the same as the liquid inlet amount of the sixth liquid inlet channel.
9. Foil producing apparatus according to any one of claims 2-8, characterized in that the first end of each of the inlet channels is further provided with a flow restriction;
the flow limiting device is used for controlling the liquid inlet amount of the liquid inlet channel.
10. Foil producing apparatus according to any of claims 2-8, further comprising: and the liquid outlet is communicated with the anode groove, and the position of the liquid outlet is lower than that of the outlet of the anode groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410037050.0A CN117966222A (en) | 2024-01-10 | 2024-01-10 | Foil producing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410037050.0A CN117966222A (en) | 2024-01-10 | 2024-01-10 | Foil producing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117966222A true CN117966222A (en) | 2024-05-03 |
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ID=90858760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410037050.0A Pending CN117966222A (en) | 2024-01-10 | 2024-01-10 | Foil producing device |
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| Country | Link |
|---|---|
| CN (1) | CN117966222A (en) |
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2024
- 2024-01-10 CN CN202410037050.0A patent/CN117966222A/en active Pending
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