| ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ KAWASAKI STEEL TECHNICAL REPORT No.2 ( March 1981 ) ‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘ |
| MAGLAY Process | Electro-Magnetic Controlled Overlay Welding Process with ESW
Shozaburo Nakano, Noboru Nishiyama, Toshiharu Hiro, Jun-ichiro Tsuboi |
| Synopsis : Surfacing with electro-slag welding process is found superior to that with submerged arc welding process in view of the smaller dilution of base metal and stable welding phenomena even with such a wide electrode as 150 mm. The formation of under-cutting is found to be in close relations to the flow of molten slag and metal which is driven by the electro-magnetic force induced by the welding current. To counteract this force, two solenoids are equipped adjacent to the edges of the electrode. The Lorentz force based on the interaction between welding current and the electromagnetic field forces molten slag and metal to flow toward the side edges of weld pool. The electro-magnetic control technique can improve flatness of the bead surface at the overlap area adjacent to two weld passes. Welds deposited on SA 533 B C1.1 steel with type AISI 309 strip electrode fully meet the mechanical and chemical requirements of JIS Z 3221, G 0575, and AEC Regulatory Guide 1.43. |
| TextiPDF: 12p./618kbj |