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1. WO2022009606 - ALUMINUM MEMBER AND METHOD FOR PRODUCING SAME

Publication Number WO/2022/009606
Publication Date 13.01.2022
International Application No. PCT/JP2021/022288
International Filing Date 11.06.2021
IPC
C25D 11/04 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11Electrolytic coating by surface reaction, i.e. forming conversion layers
02Anodisation
04of aluminium or alloys based thereon
C25D 11/06 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11Electrolytic coating by surface reaction, i.e. forming conversion layers
02Anodisation
04of aluminium or alloys based thereon
06characterised by the electrolytes used
C25D 11/14 2006.1
CCHEMISTRY; METALLURGY
25ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
DPROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11Electrolytic coating by surface reaction, i.e. forming conversion layers
02Anodisation
04of aluminium or alloys based thereon
14Producing integrally coloured layers
Applicants
  • 国立大学法人北海道大学 NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY [JP]/[JP]
  • 株式会社UACJ UACJ CORPORATION [JP]/[JP]
Inventors
  • 菊地 竜也 KIKUCHI Tatsuya
  • 佐藤 美羽 SATO Miu
  • 布村 順司 NUNOMURA Junji
  • 大谷 良行 OYA Yoshiyuki
Agents
  • 特許業務法人あいち国際特許事務所 AICHI, TAKAHASHI, IWAKURA & ASSOCIATES
Priority Data
2020-11849209.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) ALUMINUM MEMBER AND METHOD FOR PRODUCING SAME
(FR) ÉLÉMENT EN ALUMINIUM ET SON PROCÉDÉ DE PRODUCTION
(JA) アルミニウム部材及びその製造方法
Abstract
(EN) This aluminum member (1) comprises: a base material (2) that is formed of aluminum or an aluminum alloy; and an anodic oxide coating film (3) that is formed on the surface of the base material (2). The anodic oxide coating film (3) comprises: an amorphous layer (31) which is formed of an amorphous aluminum oxide, and which is formed on the base material (2); and a crystal layer (32) which is formed of a crystalline aluminum oxide, and which is formed on the amorphous layer (31). By subjecting the base material (2) to anodic oxidation in an electrolyte solution that contains boron atoms and has a pH of from 7.0 to 12.0, the anodic oxide coating film (3) is formed on the base material (2), thereby obtaining the aluminum member (1).
(FR) La présente invention concerne un élément en aluminium (1) qui comprend : un matériau de base (2) qui est constitué d'aluminium ou d'un alliage d'aluminium ; et un film de revêtement d'oxyde anodique (3) qui est formé sur la surface du matériau de base (2). Le film de revêtement d'oxyde anodique (3) comprend : une couche amorphe (31) qui est constituée d'un oxyde d'aluminium amorphe et qui est formée sur le matériau de base (2) ; et une couche cristalline (32) qui est constituée d'un oxyde d'aluminium cristallin et qui est formée sur la couche amorphe (31). En soumettant le matériau de base (2) à une anodisation dans une solution électrolytique qui contient des atomes de bore et qui a un pH de 7,0 à 12,0, le film de revêtement d'oxyde anodique (3) est formé sur le matériau de base (2), ce qui permet d'obtenir l'élément en aluminium (1).
(JA) アルミニウム部材(1)は、アルミニウムまたはアルミニウム合金よりなる母材(2)と、母材(2)の表面上に形成された陽極酸化皮膜(3)と、を有している。陽極酸化皮膜(3)は、非晶質のアルミニウム酸化物からなり、母材(2)上に形成された非晶質層(31)と、結晶性のアルミニウム酸化物からなり、非晶質層(31)上に形成された結晶層(32)と、を有している。ホウ素原子を含み、pHが7.0以上12.0以下である電解液中で母材(2)に陽極酸化処理を施すことにより母材(2)上に陽極酸化皮膜(3)を形成し、アルミニウム部材(1)を得ることができる。
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