Title:
アルミニウム加工品の処理
Document Type and Number:
Japanese Patent JP4143123
Kind Code:
B2
Abstract:
Surface defects on rolled alulminium alloy sheet, particularly that intended for use as lithographic plate substrate, are caused by copper-containing particles. The invention provides a method of improving the sheet by removing the particles by anodising in an aggressive electrolyte, particularly a.c. anodising at a current density of at least 2 kAm-2.
Inventors:
Amo, Martin Philip
Ball,jonathan
Ball,jonathan
Application Number:
JP50250198A
Publication Date:
September 03, 2008
Filing Date:
June 17, 1997
Export Citation:
Assignee:
ALCAN INTERNATIONAL LIMITED
International Classes:
C25F1/00; C25D11/04; C25F3/04
Domestic Patent References:
| JP4360536A | ||||
| JP9201649A |
Attorney, Agent or Firm:
Aoyama Aoi
Hisao Ishii
Hisao Ishii