500MPa flux-cored wire and preparation method thereof
A technology of flux-cored welding wire and powder, applied in welding equipment, welding medium, manufacturing tools, etc., can solve the problems of increasing labor intensity of workers and affecting welding efficiency, and achieve the effects of improving welding efficiency, reducing smoke and dust, and improving forming quality
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Embodiment 1
[0028] A 500MPa-grade flux-cored welding wire, consisting of a low-carbon steel strip and powder, the powder is wrapped in the low-carbon steel strip, and the powder is composed of the following components in parts by mass: 2 parts of arc stabilizing agent, 4 parts of catalyst , 10 parts of silicomanganese alloy, 6 parts of ferrosilicon, 12 parts of electrolytic manganese, 66 parts of reduced iron powder, and the powder filling rate is 14%.
Embodiment 2
[0030] A 500MPa-grade flux-cored welding wire, consisting of a low-carbon steel strip and powder, the powder is wrapped in the low-carbon steel strip, and the powder is composed of the following components in parts by mass: 4 parts of arc stabilizing agent, 3 parts of catalyst , 6.5 parts of silicomanganese alloy, 15 parts of ferrosilicon, 15 parts of electrolytic manganese, 56.5 parts of reduced iron powder, and the powder filling rate is 14.5%.
Embodiment 3
[0032] A 500MPa-grade flux-cored welding wire, consisting of a low-carbon steel strip and powder, the powder is wrapped in the low-carbon steel strip, and the powder is composed of the following components in parts by mass: 6 parts of arc stabilizing agent, 2 parts of catalyst , 8 parts of silicomanganese alloy, 12 parts of ferrosilicon, 10 parts of electrolytic manganese, 62 parts of reduced iron powder, and the powder filling rate is 15%.
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