High-strength carbon dioxide protecting surfacing flux-cored wire
A technology of carbon dioxide and gas shielding, applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problems of few types of flux-cored welding wires and poor toughness in gas shielded surfacing welding, and achieve excellent welding processability, durability Excellent wear performance and good slag coverage
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Embodiment 1
[0032] Rutile: 13%, fluoride: 26%, magnesia: 3%, potassium feldspar: 2%, aluminum-magnesium alloy: 2%, metallic chromium: 21%, flake graphite: 5%, 45# ferrosilicon: 4 %, manganese metal: 7%, ferromolybdenum: 5%, ferro-vanadium: 3%, tungsten metal: 7%, rare earth: 2%, and the powder weight filling rate is 18%.
[0033] In the formula, fluoride includes sodium fluorosilicate and potassium cryolite, of which sodium fluorosilicate is 18%, potassium cryolite is 8%; the mass content of aluminum in the aluminum-magnesium alloy is 47-53%, and the mass content of magnesium is ≥ 47%; the mass content of molybdenum in ferromolybdenum is ≥ 55%; the mass content of vanadium in ferro-vanadium is 38-45%; the mass content of boron in ferroboron is 19-25%; the mass content of silicon in ferrosilicon is 43% ~47%. The rare earth specification is REO≥83%, CeO 2 / REO ≥ 45, F ≥ 26%.
Embodiment 2
[0035] Rutile: 30%, fluoride: 5%, magnesia: 3%, quartz: 5%, potassium feldspar: 2%, aluminum-magnesium alloy: 2%, metallic chromium: 14%, flake graphite: 6%, 45 # Ferrosilicon: 2%, metal manganese: 8%, molybdenum ferro: 7%, vanadium iron: 6%, boron iron: 2%, metal tungsten 6%, rare earth: 2%. The powder filling rate is 22%.
[0036] In the formula, the fluoride is fluorite; the mass content of aluminum in the aluminum-magnesium alloy is 47-53%, and the mass content of magnesium is ≥47%; the mass content of molybdenum in ferromolybdenum is ≥55%; The mass content of boron in ferroboron is 19-25%; the mass content of silicon in ferrosilicon is 43-47%. The rare earth specification is REO≥83%, CeO 2 / REO ≥ 45, F ≥ 26%.
Embodiment 3
[0038] Rutile: 17%, fluoride: 7%, magnesia: 5%, quartz: 3%, potassium feldspar: 4%, aluminum-magnesium alloy: 3%, metallic chromium: 20%, flake graphite: 8%, 45 #Ferosilicon: 2%, manganese metal: 9%, ferromolybdenum: 6%, ferrovanadium: 4%, tungsten metal 8%, rare earth: 4%, and the balance is iron powder. The powder filling rate is 20%.
[0039] In the formula, fluoride includes two kinds of fluorite and potassium cryolite, of which 5% of fluorite and 2% of potassium cryolite; the mass content of aluminum in the aluminum-magnesium alloy is 47-53%, and the mass content of magnesium is ≥47%; The mass content of molybdenum is ≥55%; the mass content of vanadium in ferrosilicon is 38-45%; the mass content of boron in ferroboron is 19-25%; the mass content of silicon in ferrosilicon is 43-47%. The rare earth specification is REO≥83%, CeO 2 / REO ≥ 45, F ≥ 26%.
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