CN111172566A - Production process for eliminating white spots of electrolytic copper foil, foil forming machine and pole distance control method - Google Patents
Production process for eliminating white spots of electrolytic copper foil, foil forming machine and pole distance control method Download PDFInfo
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- CN111172566A CN111172566A CN202010096555.6A CN202010096555A CN111172566A CN 111172566 A CN111172566 A CN 111172566A CN 202010096555 A CN202010096555 A CN 202010096555A CN 111172566 A CN111172566 A CN 111172566A
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/04—Wires; Strips; Foils
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention discloses a production process for eliminating white spots of electrolytic copper foil, a foil forming machine and a pole distance control method; belongs to the technical field of electrolytic copper foil production equipment; the technical key points are as follows: the method comprises the following steps: the outer sides of the supporting plates supported at the two ends of the central rotating shaft of the cathode roller are respectively provided with a first lifting fixing seat and a second lifting fixing seat; first lift fixing base includes: the first lifting rod and the first supporting bearing seat are arranged on the first supporting shaft seat; the first supporting bearing seat is arranged at the top of the first lifting rod, and the central rotating shaft of the cathode roller penetrates through the first supporting bearing seat; the second lift fixing base includes: the second lifting rod assembly is used for horizontally supporting the bearing plate and the second supporting bearing seat; the second supporting bearing seat and the motor are arranged on the horizontal bearing plate; the cathode roller central rotating shaft penetrates through the second supporting bearing seat. The invention aims to provide a variable-pole-distance electrolytic copper foil production process, a variable-pole-distance adjusting device and an adjusting method, which can solve the problems of white spots and excessive power consumption of a copper foil.
Description
Technical Field
The invention mainly relates to the electrolytic copper foil production technology, in particular to a production process for eliminating white spots of an electrolytic copper foil, a foil forming machine and a pole distance control method.
Background
The pole pitch represents the distance between the cathode and the anode and is a very important parameter in the electrolysis industry.
The inventors found in the long-term copper foil production process: the copper foil is white spot, and the adjustment of the polar distance is the best way to solve the problem.
However, unlike electrolytic aluminum, electrolytic copper foil generally employs a cathode roll rotation deposition method, that is, a cathode-anode is not in a parallel plate relationship but in an arc-arc relationship.
In the prior art, how to adjust the polar distance between the arc anode groove and the circular cathode roller is not described, especially in the design of JP 2019173164A.
Disclosure of Invention
The invention aims to provide a production process for eliminating white spots of an electrolytic copper foil, a foil forming machine and a pole pitch control method aiming at the defects of the prior art.
A production process for eliminating white spots of electrolytic copper foil raises a cathode roller when the bath pressure is lower than a preset value so as to increase the polar distance until the bath pressure reaches the preset value.
A foil forming machine comprises a cathode roller (1), a cathode roller central rotating shaft (2), supporting plates supported at two ends of the cathode roller central rotating shaft, and a motor (5);
the cathode roller (1) is driven to rotate by the cathode roller central rotating shaft (2), the motor (5) is connected with the cathode roller central rotating shaft (2), namely the motor (5) drives the cathode roller central rotating shaft (2) to rotate;
further comprising: a first lifting fixed seat (3) and a second lifting fixed seat (4); the outer sides of the supporting plates supported at the two ends of the central rotating shaft of the cathode roller are respectively provided with a first lifting fixed seat (3) and a second lifting fixed seat (4);
wherein, first lift fixing base (3) includes: a first lifting rod (3-1) and a first supporting bearing seat (3-2); the first supporting bearing seat (3-2) is arranged at the top of the first lifting rod (3-1), and the cathode roller central rotating shaft (2) penetrates through the first supporting bearing seat (3-2);
wherein, second lift fixing base (4) include: the second lifting rod assembly (4-1), the horizontal bearing plate (4-2) and the second supporting bearing seat (4-3); the second supporting bearing seat (4-3) and the motor (5) are arranged on the horizontal bearing plate (4-2);
the cathode roller central rotating shaft (2) is arranged in the second supporting bearing seat (4-3) in a penetrating way.
Further, the second lifting rod assembly (4-1) comprises a plurality of second lifting rods, and the first lifting rod and the second lifting rods are motor push rods or hydraulic rods.
Further, still include: the controller is connected with the first lifting fixing seat (3) and the second lifting fixing seat (4), namely the controller controls the heights of the first supporting bearing seat (3-2) and the second supporting bearing seat (4-3).
A pole pitch control method of a foil forming machine, when the pole pitch is from dxIs adjusted to hyWhile the cathode roll distance is moved up hy-xA distance, first, calculating the distance h of the cathode roller moving upwardy-The following formula is used to solve the following problem:
or:
wherein R isAnode tankIs the radius of the anode channel, RCathode rollRadius of the cathode roll, θThe corner corresponding to the anode slot;
hy，hxis a parameter;
secondly, the controller controls the first lifting fixing seat (3) and the second lifting fixing seat (4) to control the cathode roller to move upwards hy-x。
hy，hxThere is no explicit solution, which can be numerically solved by matlab et al.
The application has the advantages that:
(1) the present application includes three independent sets of claims: a method for eliminating white spots, a foil forming machine capable of eliminating white spots, and a pole pitch control method.
(2) The first inventive concept of the present application is to eliminate the white spots of the copper foil by increasing the pole pitch and thus increasing the groove pressure.
(3) The second inventive concept of the present application is to provide a mechanical device for adjusting the pole pitch; the significance of the inventive concept is that it enables automation of the pole pitch adjustment (in a mechanically controlled manner, rather than manually); the green foil machine of the present application, which can not only be used for white spot elimination; when the cell pressure is always high (too much power is consumed), the pole pitch can also be reduced.
(3) The third inventive concept of the present application is to give the polar distance dxIs adjusted to hyWhile the cathode roll distance is moved up hy-xThe corresponding relation of the distances.
Drawings
The invention will be further described in detail with reference to examples of embodiments shown in the drawings to which, however, the invention is not restricted.
Fig. 1 is a design drawing of prior art JP 2019173164A.
Fig. 2 is a layout of the green foil machine of example 1.
FIG. 3 is h-d1And (5) a relational graph.
Fig. 4 is a parameter explanatory diagram of embodiment 1.
The reference numerals in fig. 2-4 are illustrated as follows:
the cathode roller comprises a cathode roller 1, a cathode roller central rotating shaft 2, a first lifting fixing seat 3, a first lifting rod 3-1, a first supporting bearing seat 3-2, a second lifting fixing seat 4, a second lifting rod assembly 4-1, a horizontal bearing plate 4-2, a second supporting bearing seat 4-3 and a motor 5.
Detailed Description
Example 1, a method for eliminating white spots of an electrodeposited copper foil, which is solved by increasing a pole pitch.
Specifically, the generation of white spots is often associated with a low cell pressure, and thus, to eliminate white spots, an increase in the pole pitch is required.
The prior art foil forming machine comprises a cathode roller, a cathode roller central rotating shaft, supporting plates supported at two ends of the cathode roller central rotating shaft and a motor.
The raw foil machine of this application, on the raw foil machine of prior art, has carried out following improvement:
further comprising: a first lifting fixed seat 3 and a second lifting fixed seat 4;
the cathode roller 1 is driven to rotate by a cathode roller central rotating shaft 2, and a first lifting fixing seat 3 and a second lifting fixing seat 4 are respectively arranged on the outer sides of the supporting plates supported at the two ends of the cathode roller central rotating shaft;
first lift fixing base 3 includes: a first lifting rod 3-1 and a first supporting bearing seat 3-2; the first supporting bearing seat 3-2 is arranged at the top of the first lifting rod 3-1, and the cathode roller central rotating shaft 2 penetrates through the first supporting bearing seat 3-2.
The second lifting fixing seat 4 comprises: a second lifting rod assembly 4-1, a horizontal bearing plate 4-2 and a second supporting bearing seat 4-3; the second supporting bearing seat 4-3 and the motor 5 are arranged on the horizontal bearing plate 4-2.
The second lifting rod assembly 4-1 comprises a plurality of second lifting rods, and the first lifting rod and the second lifting rods are motor push rods or hydraulic rods.
Further comprising: and the controller is connected with the first lifting fixed seat 3 and the second lifting fixed seat 4, namely the controller controls the heights of the first supporting bearing seat 3-2 and the second supporting bearing seat 4-3.
The second supporting bearing seat 4-3 and the motor 5 are arranged on the horizontal bearing plate 4-2, so that the cathode roller 1 and the motor 5 are lifted and lowered simultaneously.
Example 1 discloses: the pole distance is adjusted by adjusting the height of the cathode roller, and then the groove pressure is adjusted, thereby avoiding the occurrence of white spots.
A method for adjusting polar distance, the radius of the cathode roller is RCathode rollThe radius of the anode slot is RAnode tankThe distance of upward movement of the cathode roller is h, and the corresponding rotation angle of the anode groove is theta.
In the initial state (when the device is installed), the anode groove and the cathode roller are concentric, and the polar distance d is equal to RAnode tank-RCathode roll。
After the cathode roller moves upwards for h, the polar distances between each point of the anode tank and the front part of the cathode roller are different, and when evaluating the tank pressure, the average polar distance d can be adopted1To calculate the average pole distance d1Is calculated as follows:
wherein the content of the first and second substances,
the average distance of the anode slots from the cathode roll is indicated.
The following examples illustrate d1When the radius of the cathode roller is 1000mm, the radius of the anode groove is 1012mm, theta is 150 degrees and 180 degrees, the cathode roller moves upwards by a distance h-a pole distance d1The relationship (2) of (c).
As shown in FIG. 3, the h-pole distance d is given1An example relationship graph of (1).
The above-mentioned embodiments are only for convenience of description, and are not intended to limit the present invention in any way, and those skilled in the art will understand that the technical features of the present invention can be modified or changed by other equivalent embodiments without departing from the scope of the present invention.
Claims (5)
1. A production process for eliminating white spots of electrolytic copper foil is characterized in that when the bath pressure is lower than a preset value, a cathode roller is lifted to increase the polar distance until the bath pressure reaches the preset value.
2. A raw foil machine has the function of eliminating copper foil white spots, and is characterized by comprising a cathode roller (1), a cathode roller central rotating shaft (2), supporting plates supported at two ends of the cathode roller central rotating shaft, and a motor (5);
the cathode roller (1) is driven to rotate by the cathode roller central rotating shaft (2), the motor (5) is connected with the cathode roller central rotating shaft (2), namely the motor (5) drives the cathode roller central rotating shaft (2) to rotate;
further comprising: a first lifting fixed seat (3) and a second lifting fixed seat (4); the outer sides of the supporting plates supported at the two ends of the central rotating shaft of the cathode roller are respectively provided with a first lifting fixed seat (3) and a second lifting fixed seat (4);
wherein, first lift fixing base (3) includes: a first lifting rod (3-1) and a first supporting bearing seat (3-2); the first supporting bearing seat (3-2) is arranged at the top of the first lifting rod (3-1), and the cathode roller central rotating shaft (2) penetrates through the first supporting bearing seat (3-2);
wherein, second lift fixing base (4) include: the second lifting rod assembly (4-1), the horizontal bearing plate (4-2) and the second supporting bearing seat (4-3); the second supporting bearing seat (4-3) and the motor (5) are arranged on the horizontal bearing plate (4-2);
the cathode roller central rotating shaft (2) is arranged in the second supporting bearing seat (4-3) in a penetrating way.
3. A green foil machine according to claim 2, characterized in that the second lifting bar assembly (4-1) comprises a plurality of second lifting bars, and the first lifting bar and the second lifting bar are motor push bars or hydraulic bars.
4. The green foil machine as claimed in claim 2, further comprising: the controller is connected with the first lifting fixing seat (3) and the second lifting fixing seat (4), namely the controller controls the heights of the first supporting bearing seat (3-2) and the second supporting bearing seat (4-3).
5. A method of pole pitch control for a green foil machine as claimed in any one of claims 2 to 4, wherein when the pole pitch is from dxIs adjusted to hyWhen the distance h of the cathode roll moving upward is calculated firsty-xThe following formula is used to solve the following problem:
wherein R isAnode tankIs the radius of the anode channel, RCathode rollIs the radius of the cathode roller, theta is the corresponding corner of the anode groove; h isy，hxIs a parameter;
secondly, the controller controls the first lifting fixing seat (3) and the second lifting fixing seat (4) to control the cathode roller to move upwards hy-x。
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010096555.6A CN111172566B (en) | 2020-02-17 | 2020-02-17 | Production process for eliminating white spots of electrolytic copper foil, foil forming machine and pole distance control method |
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| CN202010096555.6A CN111172566B (en) | 2020-02-17 | 2020-02-17 | Production process for eliminating white spots of electrolytic copper foil, foil forming machine and pole distance control method |
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| CN111172566A true CN111172566A (en) | 2020-05-19 |
| CN111172566B CN111172566B (en) | 2020-11-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113151759A (en) * | 2021-04-28 | 2021-07-23 | 广东嘉元科技股份有限公司 | Reduce electric heat treatment device of copper foil warpage |
| CN113802156A (en) * | 2021-11-05 | 2021-12-17 | 广东嘉元科技股份有限公司 | Electrolytic copper foil production equipment with cleaning assembly and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113802156A (en) * | 2021-11-05 | 2021-12-17 | 广东嘉元科技股份有限公司 | Electrolytic copper foil production equipment with cleaning assembly and production process thereof |
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