Title:
CLAD MATERIAL AND METHOD OF MANUFACTURING THE MATERIAL
Document Type and Number:
WIPO Patent Application WO/1999/062665
Kind Code:
A1
Abstract:
A method of manufacturing a clad material effective for small electronics such as an anode case and a cathode case for a button type micro cell which is comparatively small in plate thickness and requires deep drawing, comprising, in addition to the conventional method of manufacturing clad materials, the steps of a cold rolling at a draft of 30 % or less so as to enable a reduction in a difference between r values (Lankford value) showing plastic anisotropies of the clad material in a rolling joining direction and a direction having a specified angle relative to the rolling joining direction, whereby the mechanical strength of the clad material is substantially increased and the clad material less in drawing anisotropy can be provided on a mass-production scale.
Inventors:
ISHIO MASAAKI (JP)
TAKAI YOSHIKI (JP)
TAKAI YOSHIKI (JP)
Application Number:
PCT/JP1999/002859
Publication Date:
December 09, 1999
Filing Date:
May 28, 1999
Export Citation:
Assignee:
SUMITOMO SPEC METALS (JP)
ISHIO MASAAKI (JP)
TAKAI YOSHIKI (JP)
ISHIO MASAAKI (JP)
TAKAI YOSHIKI (JP)
International Classes:
B23K20/04; B32B15/01; C21D8/02; H01M50/119; H01M50/124; H01M50/133; B21B1/38; (IPC1-7): B23K20/04
Foreign References:
| JPH06336619A | 1994-12-06 | |||
| JPH07268462A | 1995-10-17 | |||
| JPH08141754A | 1996-06-04 |
Other References:
See also references of EP 1020247A4
Attorney, Agent or Firm:
Oshida, Yoshihisa (Ginza 3-chome Chuou-ku Tokyo, JP)
Download PDF: