公开(公告)号：EP1008441A4

公开(公告)日：2002-03-20

申请号：EP98914061

申请日：1998-04-17

Applicant: SUMITOMO SPEC METALS

Inventor： ISHIO MASAAKI

IPC: B23K20/04 ,  B23K20/02 ,  B23K20/227 ,  B32B15/01 ,  C23C30/00 ,  H01M2/02

CPC classification number: B32B15/015 ,  B23K20/023 ,  B23K20/227 ,  B23K2201/06 ,  C23C30/00 ,  Y10S428/924 ,  Y10S428/925 ,  Y10S428/94 ,  Y10T428/12694 ,  Y10T428/12715 ,  Y10T428/12882 ,  Y10T428/12917 ,  Y10T428/12924 ,  Y10T428/12937 ,  Y10T428/12944 ,  Y10T428/12979

Abstract: A high strength clad material having excellent moldability, specifically a three-layered clad material produced by using a stainless steel as a substrate and integrating a sheet of nickel or its alloy with one principal plane of the substrate and a sheet of copper with the other principal plane of the substrate both by pressure welding or a two- or three-layered clad material produced by integrating a sheet of nickel or its alloy with at least one principal plane of the substrate by pressure welding. The clad material makes it possible to further increase the relative thickness of the stainless steel, while reducing the total thickness of the clad material, thus realizing a mechanical strength (tensile strength) at least equivalent to that of the conventional two- or three-layered clad material. A tension bridle roll having a predetermined size and shape is disposed on the feed side of a pressure welding roll and a sheet of nickel, copper, etc., is fed to the pressure welding roll through the tension bridle roll, thus making it possible to apply a uniform tension to each sheet as a whole, to prevent the occurrence of breakage and wrinkles during the pressure welding, to reduce the thicknesses of both nickel and copper sheets before pressure welding to about 5 νm, and to reduce the relative thickness of each sheet in the three-layered clad material for a battery case to about 0.5 % of the total thickness.

公开(公告)号：EP1068924A4

公开(公告)日：2004-03-24

申请号：EP00900900

申请日：2000-01-24

Applicant: SUMITOMO SPEC METALS ,  DENSO CORP

Inventor： ISHIO MASAAKI ,  HASEGAEWA TSUYOSHI ,  UEDA MASAMI ,  KAJIKAWA SHUNJI ,  SAKAMOTO YOSHITSUGU ,  UCHIMURA KATSUNORI

IPC: B23K1/00 ,  B23K20/16 ,  B23K20/227 ,  B23K35/00 ,  B23K35/02 ,  B23K35/14 ,  B23K35/30 ,  B23K20/04 ,  F01M5/00

CPC classification number: B23K1/0012 ,  B23K20/16 ,  B23K20/227 ,  B23K35/004 ,  B23K35/0238 ,  B23K35/302 ,  B23K2201/14

Abstract: A brazing material capable of improving the corrosion resistance of a brazing filler metal portion in a brazed structure brazed with a Cu-based brazing filler metal, and a brazed structure, such as a heat exchanger, excellent in corrosion resistance at a brazing filler metal portion. A brazing composite material (1) comprising a base material (11) formed by an iron/steel product such as a stainless steel product, Fe atom diffusion restricting layers (12) formed by Ni or Ni alloy containing Ni as a main component, and, as required, Cu-based brazing filler metal layers (13) each laminated on each layer (12). The brazed structure comprises a first member, and a second member brazed to the first member with a Cu-based brazing filler metal. The first member has a base material formed by an iron/steel product such as a stainless steel product, and an Fe atom diffusion restricting layer that restricts the diffusion of Fe atoms in the base material toward a molten brazing filler metal at brazing; thereby preventing a degradation in corrosion resistance of the brazing filler metal otherwise caused by the diffusion and entry of Fe atoms.

公开(公告)号：EP1020247A4

公开(公告)日：2000-07-19

申请号：EP99922572

申请日：1999-05-28

Applicant: SUMITOMO SPEC METALS

Inventor： ISHIO MASAAKI ,  TAKAI YOSHIKI

IPC: B21B1/38 ,  B23K20/04 ,  B32B15/01 ,  C21D8/02 ,  H01M2/02

CPC classification number: B32B15/015 ,  B21B2001/383 ,  B23K20/04 ,  C21D8/0205 ,  C21D8/0236 ,  C21D2251/02 ,  H01M2/027 ,  H01M2/0275 ,  H01M2/0285 ,  H01M2/0287 ,  H01M2002/0297 ,  Y10S428/925 ,  Y10S428/926 ,  Y10S428/94 ,  Y10T428/12757 ,  Y10T428/12882 ,  Y10T428/12917 ,  Y10T428/12924 ,  Y10T428/12937 ,  Y10T428/12979

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.