Method for gas-shielded arc brazing of steel sheet
An arc brazing and gas shielding technology, applied in arc welding equipment, welding medium, welding equipment, etc., can solve the problem of excessive line energy, reduce the occurrence of burn-through or welding separation, achieve high speed, and reduce arcing. The effect of voltage
Inactive Publication Date: 2011-08-10
NIPPON SANSO CORP
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Therefore, the heat input to the base metal tends to become excessive, and it is considered unsuitable to use pulsed arcs on thin steel plates.
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[0174] Test examples of the present invention are shown below. However, the present invention is not limited to these examples. In particular, changes, additions, omissions, and the like can be made to positions, numbers, amounts, types, and the like as long as there is no problem.
[0175] Moreover, for the experiments shown in the table below, in order to distinguish, No.1-131 shown in Tables 1-4 can be understood as No.A1-A131, and No.1-140 shown in Tables 5-9 Can be understood as No.B1~B140.
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Abstract
A method for gas-shielded arc brazing of a steel sheet; wherein a solid wire containing copper, as a main component, and aluminum is used in arc brazing of a steel sheet; and the method including periodically carrying out pulse droplet transfer and short circuit droplet transfer in arc brazing using, as a shielding gas, a mixed gas consisting of 0.03 to 0.3% by volume of oxygen gas and the remainder which is argon.
Description
technical field [0001] The invention relates to a gas shielded arc brazing method for steel plates. [0002] This application claims priority based on Japanese Patent Application No. 2008-252696 filed in Japan on September 30, 2008 and Japanese Patent Application No. 2008-266722 filed in Japan on October 15, 2008, the contents of which are incorporated herein. Background technique [0003] Arc brazing is a welding method that uses an electric arc as a heat source. It is a joining method that uses a metal or alloy having a lower melting point than the base metal to be joined as a filler metal, and joins the base metal almost without melting. Usually, a welding power source sold for arc welding is used for construction. [0004] Arc brazing has lower input energy than fusion welding such as gas metal arc (GMA, Gas Metal Arc) welding. Therefore, since less deformation occurs, joints with large gaps can be joined, making it suitable for joining thin plates such as automobile b...
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IPC IPC(8): B23K9/173B23K1/00B23K9/02B23K31/02B23K103/04
CPCB23K2201/18B23K35/38B23K9/02B23K9/173B23K2203/04B23K9/09B23K35/3046C21D2251/04B23K3/063B23K35/383B23K35/0227B23K1/14B23K2101/18B23K2103/04
Inventor 龟井俊和
Owner NIPPON SANSO CORP
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