SOLID WIRE, AND GAS-SHIELDED ARC WELDING METHOD USING SAME

A solid wire is for gas-shielded arc welding, using a shielding gas, and for galvanized steel sheet welding. The solid wire comprises, to the mass of the whole of the solid wire, predetermined amount of C, Si, Mn, P, S, O, and Cr, with the balance consisting of Fe and inevitable impurities. The soli...

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Bibliographische Detailangaben
Hauptverfasser:	SUZUKI, Reiichi, YAMAZAKI, Kei, IZUTANI, Shun, UEDA, Yuji, UEZONO, Toshiro, YANAGI, Keiichiro, NAKAMURA, Kazuki
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM
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Beschreibung
Zusammenfassung:	A solid wire is for gas-shielded arc welding, using a shielding gas, and for galvanized steel sheet welding. The solid wire comprises, to the mass of the whole of the solid wire, predetermined amount of C, Si, Mn, P, S, O, and Cr, with the balance consisting of Fe and inevitable impurities. The solid wire satisfies "1.0 ¤ (percentage by mass of Si + that by mass of Mn)/{100 (that by mass of S + that by mass of O} ¤ 4.0" and "0.50 ¤ percentage by mass of Mn/that by mass of Si ¤ 2.00". The shielding gas is an Ar gas comprising 25 to 40% of CO 2 gas. It is achieved to improve spatter-decreasing performance and pore-resisting performance (performance of restraining the generation of porosity defects, such as pits and blowholes).