Title: Annealing technology of high-purity aluminium foil for high-voltage electrolytic capacitor
Application Number: 91111911 Application Date: 1991.12.31
Publication Number: 1073988 Publication Date: 1993.07.07
Approval Pub. Date: Granted Pub. Date: 1995.01.25
International Classifi-cation: C22F1/04
Applicant(s) Name: Beijing Science and Technology Univ. Address: 100083
Inventor(s) Name:
Attorney & Agent: LIU YUEE
Abstract:
     Cold-rolled high-purity aluminium foil is annealed sectionally, that is, at 200-250 deg.C for 5-10 min., at 300-350 deg.C for 10-15 min., at 400-500 deg.C for 1-5 min., and finally quick cooling to ordinary temp. Through such treatment, the possessive ratio of crystal face on foil surface may be over 85% to obviously improve its quality and avoid the unstability of quality.
Time: 5