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A kind of filling method of electrolytic copper foil diatomite filter aid

A technology of copper foil diatomite and filling method, which is applied in the field of copper foil processing, can solve the problems of high production cost, cumbersome operation, leakage accidents, etc., and achieve the effects of improved service life, simple operation method and stable performance

Active Publication Date: 2022-01-25
浙江花园新能源股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional electrolytic copper foil production method is to install a large number of filter bags and filter elements at the back of the diatomite filter, and ensure the cleanliness of the electrolyte through multi-stage filtration. This method has high production costs
[0004] In addition, the filling method of the traditional diatomite filter aid is cumbersome, and the filling process is prone to leakage accidents and even safety and environmental protection incidents

Method used

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  • A kind of filling method of electrolytic copper foil diatomite filter aid
  • A kind of filling method of electrolytic copper foil diatomite filter aid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Such as figure 1 As shown, a filling system of electrolytic copper foil diatomite filter aid, including a coating tank 3 with a feeding port 2, a dirty liquid tank 4 located above the coating tank, located at the bottom of the dirty liquid tank and can be opened and communicated The communication valve 10 between the dirty liquid tank and the coating tank, the diatomite filter 6 used to filter the diatomite filter aid, the liquid outlet pipeline connecting the coating tank and the inlet of the diatomite filter, and the diatomite filter The liquid return pipeline between the first outlet of the machine and the feeding port, the liquid outlet pipeline is connected with a pump 1 at the end of the coating tank, and the first electric valve 8 is connected to the end of the liquid return pipeline near the inlet of the diatomite filter, and the feeding One end of the mouth is connected with a filter accuracy detector 5.

[0025] Wherein, the diatomite filter is also provided ...

Embodiment 2

[0027] A method for filling an electrolytic copper foil diatomite filter aid, using the filling system of the electrolytic copper foil diatomite filter aid for filling, comprising the following steps:

[0028] Step S1, the pump is turned on, the solution in the coating tank enters the diatomite filter through the outlet pipe, and then enters the coating tank through the first electric valve, the diatomite filter is filled with the solution, and the connecting valve is manually closed to form a closed-circuit filtration cycle ;

[0029] Step S2, starting to add diatomite filter aid to the coating tank through the feeding port;

[0030] Step S3, the solution passes through the filter accuracy detector, and when the diameter of the microparticles in the solution is less than 0.5 microns, the first electric valve starts to close;

[0031] Step S4, the pressure of the diatomite filter is increased, the pressure reaches 0.35MPa, and the second electric valve is opened;

[0032] St...

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Abstract

The invention discloses a method for filling an electrolytic copper foil diatomite filter aid. In step S1, the pump is turned on, the solution in the coating tank enters the diatomite filter through the liquid outlet pipe, and then enters the coating through the first electric valve. tank, the diatomite filter is filled with solution, and the connecting valve is manually closed to form a closed-circuit filtration cycle; step S2, start adding diatomite filter aid to the coating tank through the feeding port; step S3, the solution passes through the filter accuracy detector, when When the diameter of the microparticles in the solution is less than 0.5 microns, the first electric valve begins to close; step S4, the pressure of the diatomite filter increases, and the pressure reaches 0.35MPa, and the second electric valve opens; step S5, the diatomite filter aid After the filling is completed, the solution enters the raw foil filling system through the second outlet; in step S6, the connection valve is manually opened, and the solution begins to circulate and supply liquid normally. The invention can realize reliable filtering precision, ensure stable performance of copper foil, and reduce production cost at the same time.

Description

technical field [0001] The invention relates to a copper foil processing technology, in particular to a filling method of an electrolytic copper foil diatomite filter aid. Background technique [0002] With the development of society and the wide application of various high-end electronic products, electrolytic copper foil manufacturing is gradually developing rapidly as a pillar industry of electronics in China. However, it is rare to be able to produce high-end electrolytic copper foils (ultra-low profile copper foils, high-temperature high-ductility copper foils), especially those that can be similar to Japanese copper foils in terms of performance. One of the key factors restricting the performance of copper foil is the filtration accuracy of the silica filter aid in the electrolyte, because the silica filter aid not only undertakes the purification of the solution but also the adsorption of organic impurities. The content of organic impurities directly affects the coppe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D1/04B01D37/02
CPCC25D1/04B01D37/02
Inventor 王海军王晨
Owner 浙江花园新能源股份有限公司