A protective gas shroud for welding is provided by: positioning an article into a chamber having an opening at the top to permit welding of the article; introducing argon into the body of the chamber to act as a protective gas shroud for the article during welding; introducing helium into the open top of the chamber to assist in maintaining a protective gas shroud around the article during welding; and welding the article within the protective gas shroud.
申请公布号
EP1165281(A4)
申请公布日期
2002.09.25
申请号
EP20000902329
申请日期
2000.01.04
申请人
CHROMALLOY GAS TURBINE CORPORATION
发明人
FOSTER, MICHAEL;KNOWLES, THOMAS, E.;UPDEGROVE, KEVIN;THURSTON, CHRISTOPHER, A.