Low-fluorine flux cored welding rod
A technology of flux-cored electrode and composition, applied in welding medium, welding equipment, welding/cutting medium/material, etc., can solve the problem of high cost, and achieve the effect of low spatter rate, good weld formation and small spatter
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Embodiment 1
[0027] A low-fluorine flux-cored electrode, comprising a metal shell and a filler composition, the parts by weight of each component contained in the filler composition are:
[0028] Metal oxide slag former: 30 parts,
[0029] Fluorochemicals: 15 parts,
[0030] Metal alloy agent: 35 parts,
[0031] The parts by weight of the metal oxide slag forming agent is greater than the parts by weight of the fluorine-containing compound, the fluorine provided by the fluorine-containing compound is at least 1.5% by weight of the filler composition; the metal shell contains at least 70% weight of iron.
[0032] The metal oxide slag former is rutile.
[0033] The fluorine-containing compound is CaF 2 、Na 3 A1F 6 mixture.
[0034] The filler composition accounts for 30% of the total weight of the flux cored electrode.
[0035] The metal alloying agent includes FeB and FeMn, wherein FeB is 1 part (by weight), and FeMn is 6 parts (by weight).
Embodiment 2
[0037] A low-fluorine flux-cored electrode, comprising a metal shell and a filler composition, the parts by weight of each component contained in the filler composition are:
[0038] Metal oxide slag former: 40 parts,
[0039] Fluorochemicals: 30 parts,
[0040] Metal alloy agent: 45 parts,
[0041] The parts by weight of the metal oxide slag forming agent is greater than the parts by weight of the fluorine-containing compound, the fluorine provided by the fluorine-containing compound is at least 1.5% by weight of the filler composition; the metal shell contains at least 70% weight of iron.
[0042] The metal oxide slag former is rutile.
[0043] The fluorine-containing compound is K 3 AlF 6 , MnF 3 mixture.
[0044] The filler composition accounts for 35% of the total weight of the flux cored electrode.
[0045] The metal alloy agent includes FeSi and FeTi, wherein FeSi is 5 parts (by weight), and FeTi is 3 parts (by weight).
[0046] The following table records the ...
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