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1. WO2017093304 - ALUMINIUM EXTRUSION ALLOY SUITABLE FOR ETCHED AND ANODIZED COMPONENTS

Publication Number WO/2017/093304
Publication Date 08.06.2017
International Application No. PCT/EP2016/079257
International Filing Date 30.11.2016
IPC
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
21
Alloys based on aluminium
02
with silicon as the next major constituent
B PERFORMING OPERATIONS; TRANSPORTING
21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
C
MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
23
Extruding metal; Impact extrusion
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11
Electrolytic coating by surface reaction, i.e. forming conversion layers
02
Anodisation
04
of aluminium or alloys based thereon
C CHEMISTRY; METALLURGY
25
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
D
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; JOINING WORKPIECES BY ELECTROLYSIS; APPARATUS THEREFOR
11
Electrolytic coating by surface reaction, i.e. forming conversion layers
02
Anodisation
04
of aluminium or alloys based thereon
16
Pretreatment
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
21
Alloys based on aluminium
06
with magnesium as the next major constituent
08
with silicon
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
047
of alloys with magnesium as the next major constituent
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
F
CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS
1
Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
04
of aluminium or alloys based thereon
05
of alloys of the Al-Si-Mg type, i.e. containing silicon and magnesium in approximately equal proportions
C22C 21/02 (2006.01)
B21C 23/00 (2006.01)
C25D 11/04 (2006.01)
C25D 11/16 (2006.01)
C22C 21/08 (2006.01)
C22F 1/04 (2006.01)
CPC
B21C 23/00
C22C 21/02
C22C 21/08
C22F 1/04
C22F 1/043
C22F 1/047
Applicants
  • NORSK HYDRO ASA [NO/NO]; P.O. Box 980 Skøyen 0240 Oslo, NO
Inventors
  • BAUGER, Øystein; NO
  • REISO, Oddvin; NO
  • BJERKAAS, Hans; NO
  • HAUGE, Tom; NO
  • FJELDBO, Snorre Kjørstad; NO
Agents
  • SPECK, Philip; NO
Priority Data
2015165302.12.2015NO
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ALUMINIUM EXTRUSION ALLOY SUITABLE FOR ETCHED AND ANODIZED COMPONENTS
(FR) ALLIAGE D'EXTRUSION D'ALUMINIUM APPROPRIÉ POUR DES COMPOSANTS DÉCAPÉS ET ANODISÉS
Abstract
(EN)
Aluminium alloys suitable for etched and anodized components, in particular aluminum extrusion alloys of the types containing Magnesium and Silicon, which after being extruded to any wide variety of forms for different applications such as house buildings and other building applications is subjected to etching in a conventional alkaline etching bath and subsequent anodizing, wherein the relation between Cu and Zn is controlled to avoid preferential grain etching and the ratio of Cu/Zn is below 1.
(FR)
L'invention concerne des alliages d'aluminium appropriés pour des composants décapés et anodisés, en particulier des alliages d'extrusion d'aluminium des types contenant du magnésium et du silicium qui, après être extrudés en n'importe quel large éventail de formes pour différentes applications telles que des constructions de maisons et d'autres applications de bâtiment, est soumis à un décapage dans un bain de décapage alcalin classique et à une anodisation ultérieure, la relation entre Cu et Zn étant régulée afin d'éviter un décapage préférentiel de grain et le rapport de Cu/Zn est inférieur à 1.
Also published as
Latest bibliographic data on file with the International Bureau