Method for anodizing aluminum pipe for base of photoconductor drum, and base of photoconductor drum

A technology of anodization and treatment method, which is applied in the direction of anodization, electric recording process applying charge pattern, equipment applying electric recording process of charge pattern, etc. The effect of raised defects, less leakage, and improved film formation speed

Inactive Publication Date: 2012-08-29
RESONAC HOLDINGS CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the occurrence of burr-like protrusions on the surface of the ED tube can be suppressed by this method, burr-like protrusions sometimes occur occasionally, and the occurrence of burr-like protrusions has not been reliably prevented.

Method used

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  • Method for anodizing aluminum pipe for base of photoconductor drum, and base of photoconductor drum
  • Method for anodizing aluminum pipe for base of photoconductor drum, and base of photoconductor drum
  • Method for anodizing aluminum pipe for base of photoconductor drum, and base of photoconductor drum

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] The aluminum drawn pipe (aluminum ED pipe) (2) obtained by drawing the aluminum extruded pipe made of A3003 material is set in figure 1 Electrolysis was performed in the anodizing treatment apparatus (1) shown to form an anodized film on the outer peripheral surface of the aluminum drawn tube (2), thereby obtaining an aluminum tube for a photosensitive drum base. Used as a power supply unit (5) figure 2 Shown in (b) has the power supply portion of positive side power supply (33) and short-circuit circuit (34), uses the sulfuric acid aqueous solution of concentration 30 mass % as electrolytic solution (6), the temperature of electrolytic bath (electrolytic solution) (6) Controlled at 5°C, apply a image 3Electrolysis was performed with a high-frequency voltage of 5000 Hz (5 kHz) of the rectangular electrolysis waveform shown. In addition, the positive side is used for CC constant current electrolysis, and the negative side is used for CV constant voltage electrolysis...

Embodiment 2～7

[0082] An aluminum tube for a photosensitive drum base was obtained in the same manner as in Example 1 except that the electrolysis conditions were set to the values ​​shown in Table 1. In addition, in Examples 6 and 7, as the power supply unit (5) of the anodizing treatment device (1), the figure 2 The power supply unit shown in (a) has a positive side power supply (31) and a negative side power supply (32).

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Abstract

Disclosed is a method for anodizing an aluminum pipe for a base of a photoconductor drum, characterized by bringing an electrolysis solution (6) into contact with the outer circumferential surface of an aluminum pipe (2) for a base of a photoconductor drum and, in this state, applying a high-frequency voltage of not less than 5 kHz to the electrolysis solution to conduct electrolysis and thus to form an anodic oxide film on the outer circumferential surface of the aluminum pipe (2). According to this method, an anodic oxide film can be formed on the surface of the pipe, and an aluminum pipe free from burr-shaped convex defects can be produced. Further, anodization for film formation can be carried out at a high speed, and an anodic oxide film, which causes no significant elution of an electrolyte, can be formed.

Description

technical field [0001] The present invention relates to an anodic oxidation treatment method for producing an aluminum tube with excellent surface quality used as a substrate for OPC photosensitive drums of electronic image devices such as copiers, printers, facsimile machines, and the surface obtained by anodic oxidation treatment using the method High-quality photosensitive drum substrate. [0002] In addition, the word "aluminum" in the present specification and claims is used in the meaning of including aluminum and its alloys. [0003] In addition, the term "electrolysis waveform" in this specification and claims is a control factor selected from current and voltage, and refers to the output waveform of the control factor used for control during electrolysis treatment. Background technique [0004] Aluminum tubes used as photosensitive drum substrates of electronic image devices such as copiers, printers, and facsimile machines need to form a uniform OPC (organic photo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/04G03G5/00G03G5/10
CPCG03G2215/00957C25D11/04G03G15/751C25D11/024C25D7/04G03G5/102
Inventor 森川卓哉大出雅章
Owner RESONAC HOLDINGS CORPORATION
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