Title:
ROTATING ARC PLASMA WELDING METHOD
Document Type and Number:
Japanese Patent JP2000246447
Kind Code:
A
Abstract:
To attain a deep penetration welding without developing blow hole by adopting a plasma welding which unnecessitates preworking of a steel plate and does not require a welding wire so that the equipment cost is low.
The welding is executed by a rotating plasma arc flame A with pilot gas flowing rate L (liter/min) at 0.7-(0.045F+0.7). Wherein, F: the number of rotations (Hs) of the arc flame A. That is, the pilot gas flowing rate L and the number of rotations F of the plasma arc flame A are set into the slant line range in the attached graph.
Inventors:
HOSHINO TADASHI
NAKANO MASARU
MARUYAMA TOSHIHIKO
NAKANO MASARU
MARUYAMA TOSHIHIKO
Application Number:
JP5446199A
Publication Date:
September 12, 2000
Filing Date:
March 02, 1999
Export Citation:
Assignee:
NIPPON STEEL WELDING PROD ENG
International Classes:
B23K9/30; B23K10/00; (IPC1-7): B23K10/00; B23K9/30; B23K10/00
Attorney, Agent or Firm:
Nobuoki Sugi
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