US2006213874A1PendingUtilityA1
Shielding gases for mag-welding of galvanized steel sheets and welding method using the same
Est. expiryMar 28, 2025(expired)· nominal 20-yr term from priority
B23K 9/173
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Abstract
A shielding gas for MAG welding wherein a carbon steel solid wire is used for lap fillet welding of a galvanized steel sheet; wherein the shielding gas is a mixed gas composition consisting of 8 to 15% by volume of oxygen, 20 to 30% by volume of carbon dioxide, and residual % by volume of argon.
Claims
exact text as granted — not AI-modified1 . A shielding gas for MAG welding wherein a carbon steel solid wire is used for lap fillet welding of a galvanized steel sheet; wherein the shielding gas is a mixed gas composition consisting of 8 to 15% by volume of oxygen, 20 to 30% by volume of carbon dioxide, and residual % by volume of argon.
2 . The shielding gas according to claim 1 , wherein the composition of the mixed gas consists of 8.5 to 12% by volume of oxygen, 20 to 30% by volume of carbon dioxide, and residual % by volume of argon.
3 . A method for MAG welding of a galvanized steel sheet, wherein a mixed gas composition consisting of 8 to 15% by volume of oxygen, 20 to 30% by volume of carbon dioxide, and residual % by volume of argon, is used as a shielding gas to conduct lap fillet welding for a galvanized steel sheet by using a carbon steel solid wire.
4 . The method according to claim 3 , wherein the composition of the mixed gas consists of 8.5 to 12% by volume of oxygen, 20 to 30% by volume of carbon dioxide, and residual % by volume of argon.
5 . The method according to claim 3 , wherein a welding speed of the lap fillet welding is 125 cm/min or more.Join the waitlist — get patent alerts
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