Title:
AUTOMOTIVE ALUMINUM ALLOY SHEET AND ITS PRODUCING METHOD
Document Type and Number:
Japanese Patent JP3781097
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prepare a Cu-containing automotive aluminum alloy sheet improved in filiform erosion resistance while maintaining its high formability and to provide its producing method.
SOLUTION: This automotive aluminum alloy sheet is composed of an aluminum alloy containing, by mass, 0.8 to 1.5% Si, 0.4 to 0.7% Mg and 0.5 to 0.8% Cu, in which crystal grain size is 10 to 40 μm, and the content of Cu in the case the outermost surface containing an oxidized film is analyzed by X-ray photoelectron spectroscopy(XPS) is 1/10 to 1/2 of the above Cu content in the aluminum alloy.
Inventors:
Tawara Makoto
Osamu Takezoe
Mariko Sakata
Shinji Matsuda
Masato Katsukura
Tsutomu Hattori
Osamu Takezoe
Mariko Sakata
Shinji Matsuda
Masato Katsukura
Tsutomu Hattori
Application Number:
JP2000119715A
Publication Date:
May 31, 2006
Filing Date:
April 20, 2000
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
Nissan Motor Co., Ltd
Nissan Motor Co., Ltd
International Classes:
C22C21/06; C22C21/02; C22F1/05; C22F1/00; C22F1/043; (IPC1-7): C22C21/02; C22C21/06; C22F1/05; //C22F1/00
Domestic Patent References:
| JP5112840A | ||||
| JP6287672A | ||||
| JP5033165A | ||||
| JP2000017366A | ||||
| JP2000345364A |
Attorney, Agent or Firm:
Masanori Fujimaki