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Method for preparing cathode roller

A cathode roller, conventional technology, applied in the field of electrochemical applications, can solve the problems affecting the quality of copper foil products, uneven thickness of copper cylinder, uneven cross-sectional area, etc., achieve tight combination, solve uneven thickness, and uniform thickness Effect

Inactive Publication Date: 2012-07-25
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the problem existing in the prior art that due to the uneven thickness of the copper cylinder, the uneven cross-sectional area per unit arc of the copper cylinder leads to uneven current density and affects the quality of copper foil products. The present invention proposes a Preparation method of cathode roller

Method used

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  • Method for preparing cathode roller
  • Method for preparing cathode roller

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Effect test

Embodiment 1

[0021] This embodiment is a preparation method for preparing a 1500mm φ1500mm cathode roller. The specific process includes:

[0022] Step 1. Make the cathode roller core; weld the steel cylinder, the auxiliary plate and the rotating shaft to form the cathode roller core;

[0023] Step 2: Relieve stress on the completed cathode roller core; use conventional artificial aging methods to perform stress relief; the temperature of the stress relief is 180° C. and the temperature is kept for 10 hours.

[0024] Step 3: Process the cathode roller core according to conventional machining. During processing, the coaxiality of the steel cylinder and the rotating shaft is guaranteed to be 0.05mm, while the roundness of the steel cylinder is 0.025mm, straightness of 0.036mm, dimensional accuracy φ1476±0.025mm, and surface roughness Ra1.6.

[0025] Step 4, surface deposition; immerse the processed cathode roller core in the electrodeposition solution; connect the cathode roller core to the cathode ...

Embodiment 2

[0031] This embodiment is a preparation method for preparing a φ2000mm cathode roller. The specific process includes:

[0032] Step 1. Make the cathode roller core; weld the steel cylinder, the auxiliary plate and the rotating shaft to form the cathode roller core;

[0033] Step 2: Relieve stress on the completed cathode roller core; use conventional artificial aging methods to perform stress relief; the temperature of the stress relief is 180° C. and the temperature is kept for 10 hours.

[0034] Step 3: Process the cathode roller core according to conventional machining. During processing, the coaxiality of the steel cylinder and the rotating shaft is guaranteed to be 0.05mm, while the roundness of the steel cylinder is 0.03mm, the straightness is 0.05mm, the dimensional accuracy is φ1976±0.03mm, and the surface roughness is Ra1.6.

[0035] Step 4, surface deposition; immerse the processed cathode roller core in the electrodeposition solution; connect the cathode roller core to the ...

Embodiment 3

[0041] This embodiment is a preparation method for preparing a φ2700mm cathode roller. The specific process includes:

[0042] Step 1. Make the cathode roller core; weld the steel cylinder, the auxiliary plate and the rotating shaft to form the cathode roller core;

[0043] Step 2: Relieve stress on the completed cathode roller core; use conventional artificial aging methods to perform stress relief; the temperature of the stress relief is 180° C. and the temperature is kept for 10 hours.

[0044] Step 3: Process the cathode roller core according to conventional machining. During processing, it is necessary to ensure the coaxiality of the steel cylinder and the rotating shaft is 0.06mm, while ensuring the roundness of the steel cylinder is 0.08mm, straightness of 0.08mm, dimensional accuracy φ2676±0.06mm, and surface roughness Ra1.6.

[0045] Step 4, surface deposition; immerse the processed cathode roller core in the electrodeposition solution; connect the cathode roller core to the ...

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Abstract

The invention discloses a method for preparing a cathode roller and electrodepositing solution of electrodeposited copper. The method for preparing the cathode roller is realized by forming a layer of the electrodeposited copper on the surface of a machined cathode roller core through deposition. The electrodepositing solution for deposition is prepared by adding 210 to 305 g of copper sulfate pentahydrate, 56 to 92 g of copper sulfate and 55 to 105 mg of chloride ion into 1 liter of water; and the mass number of phosphorus in an anode of the electrodepositing solution is 0.025 to 0.08 percent. The form and position tolerance of an external circular surface of the prepared cathode roller is consistent with the precision of a steel cylinder. The prepared cathode roller has uniform thickness, furthermore, machining is not required. The electrodeposited copper is molecularly associated with the steel cylinder with compact association and without virtual association or gaps, and a deposited layer is compactly associated with the steel cylinder with uniform thickness, so that the defect of nonuniform thickness of the conventional process for preparing the cathode roller in the machining method is overcome, and the quality of a copper foil product and the uniformity of current density are improved.

Description

Technical field [0001] The invention relates to the field of electrochemical applications, in particular to a method for preparing a cathode roller. Background technique [0002] Electrolytic copper foil is one of the basic materials in the electronics industry. Except for detour bus bars, radio wave shielding boards, high frequency bus bars and thermal energy collectors, more than 90% are used to manufacture printed circuit boards and transmit electrical signals. [0003] Electrolytic copper foil is currently the main manufacturing method of copper foil used in the electronics industry. Foil machine is the key equipment for producing copper foil by electrolysis. It uses electrochemical principles to send a certain concentration of electrolyte into the foil machine under the action of a supporting system. Under the action of low-voltage direct current, the copper in the electrolyte The ions continuously move to the cathode roller, and after obtaining two electrons on it, they beco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D17/12C25D3/38
Inventor 杨东海王建锋徐卫兵任发民武建涛许俊如张立武吕尚宁韩冬
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY
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