Title:
WELDING METHOD FOR HEAT-TRANSFER COPPER FIN FOR METAL CASK AND WELDING DEVICE THEREFOR
Document Type and Number:
Japanese Patent JP2016011845
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a welding method for a heat-transfer copper fin for metal cask that realizes excellent weldability in welding a different-material joint made of copper and steel, realizes a good-quality welded part having sufficient throat thickness and is effective for both improvement in heat removal performance and reduction in manufacturing cost, and to provide a welding device therefor.SOLUTION: A fillet joint part is welded between starting and end positions of a weld line by: outputting a prescribed range of a ratio Ia/Ib of first welding current Ia supplied from a TIG welding power source 15 to second welding current Ib supplied from a MIG welding power source 20; using repulsive magnetic force generated by both Ia of preceding TIG flowing to a non-consumable electrode 13 and Ib of subsequent MIG flowing to a CuSi wire to generate mutually-repulsive TIG arc 22 and MIG arc 23 at a weld starting position of the fillet joint part and to form one melt pool 24 with the mutually-repulsive TIG and MIG arcs; and applying composite weld to the TIG and MIG arcs and the melt pool.
Inventors:
TARASAWA SHO
IMANAGA AKIYOSHI
OBANA TAKESHI
SUZUKI KUNIHIKO
KOIDE HIROO
HIRANUMA TAKESHI
KOBAYASHI KAZUKI
KANAMARU SHUHEI
SASAKI TOMOAKI
IMANAGA AKIYOSHI
OBANA TAKESHI
SUZUKI KUNIHIKO
KOIDE HIROO
HIRANUMA TAKESHI
KOBAYASHI KAZUKI
KANAMARU SHUHEI
SASAKI TOMOAKI
Application Number:
JP2014132282A
Publication Date:
January 21, 2016
Filing Date:
June 27, 2014
Export Citation:
Assignee:
HITACHI GE NUCLEAR ENERGY LTD
TAIYO NIPPON SANSO CORP
TAIYO NIPPON SANSO CORP
International Classes:
G21C19/32; B23K9/00; B23K9/02; B23K9/127; B23K9/16; B23K9/167; B23K9/173; B23K9/23; B23K28/02; G21F5/00; G21F5/008; G21F5/10; G21F9/36
Domestic Patent References:
| JPH0436697A | 1992-02-06 | |||
| JPH0679496A | 1994-03-22 | |||
| JPH08257746A | 1996-10-08 | |||
| JP2008082906A | 2008-04-10 | |||
| JPS5687281U | 1981-07-13 |
Foreign References:
| WO2012017913A1 | 2012-02-09 |
Attorney, Agent or Firm:
Polaire Patent Business Corporation
Previous Patent: SPECTRAL IMAGE CAPTURE SYSTEM AND CONTROL METHOD OF THE SAME
Next Patent: MEASUREMENT DEVICE
Next Patent: MEASUREMENT DEVICE