Title:
BUILD-UP SUBMERGED ARC WELDING METHOD
Document Type and Number:
Japanese Patent JPH01197098
Kind Code:
A
Abstract:
PURPOSE:To obtain the build-up submerged welding excellent in the spread of a bead and having a smooth lap part by welding by using the flux cored wire filling the flux of which component composition is limited in a pipe at the limited wire total weight ratio and the bonding flux for welding in limited bulk density. CONSTITUTION:The filling flux consisting of wt.% 0.8-2.8% C, 4.0-15% Mn, 60-76% Cr, 0.7-12% >=one kind of metal carbonate and an iron powder the balance is filled in the pipe made of 15-30% mild steel at the wire total wt.%. A build-up welding is executed by using this flux cored wire and the bond flux for welding whose bulky density is within the range of 0.75-0.98g/cm<2>. The welding workability optimum for build-up welding, the chemical component of welding metal, hardness and bead spreading, the smoothness of the bead lap part, etc., are obtd.
Inventors:
KOIKE HIROYUKI
NISHIMURA HITOSHI
SATO HITOSHI
NISHIMURA HITOSHI
SATO HITOSHI
Application Number:
JP2256588A
Publication Date:
August 08, 1989
Filing Date:
February 02, 1988
Export Citation:
Assignee:
NIPPON STEEL CORP
International Classes:
B23K9/04; B23K35/30; B23K35/368; (IPC1-7): B23K9/04; B23K35/368
Domestic Patent References:
| JPS59141396A | 1984-08-14 | |||
| JPS6125474B2 | 1986-06-16 | |||
| JPS59137194A | 1984-08-07 | |||
| JPS6123597A | 1986-02-01 |
Attorney, Agent or Firm:
Kazuo Ozeki