Welding wire prepared from aluminum alloy in use for welding
A technology of aluminum alloy welding wire and chemical composition, applied in the direction of welding medium, welding equipment, welding/cutting medium/material, etc. Poor plasticity and other problems, to achieve the effect of excellent welding process performance, good corrosion resistance, and excellent drawing performance
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[0018] The present invention will be further described below in conjunction with embodiment.
[0019] The sample test uses 6061 T6 aluminum plate. The length is 350mm, the width is 150mm, and the bevel and blunt edge are machined in the length direction. The gas is a mixed gas of 30% Ar and 70% He. The welding wire with a diameter of 1.2mm of the present invention is selected, and its chemical composition and mass percentage (%) are composed of: Si: 0.18, Fe: 0.25, Cu: 0.09, Mn: 0.10, Mg: 5.10, Cr: 0.07, Zn: 0.08, Ti : 0.12, the balance is aluminum and other unavoidable impurities. Bead welding method: welding material current (I / A) 160~180, voltage (U / V) 24, current polarity DCRP, welding speed vh (mm / s) 9, 100% visual inspection of the welding sample , X-ray, penetrant testing. The surface of the sample is well formed by visual inspection, the working temperature of the penetrant flaw detection is 20°C, the penetration time of the ZT-YS penetrant is more than 10 minutes,...
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