FIELD: metallurgy.
SUBSTANCE: flux cord wire consists of a steel shell and mix material inside. On its surface the composition coating formed by copper array with distributed in it nano-size particles of activating flux containing fluoride of alkali metal is made. The mix material contains the following components in the ratio, wt %: rutile concentrate 24-38.5; silicon dioxide 1.5-6.6; hematite 2.8-16.5; iron powder 32-45; ferromanganese 5-12; nickel 1-3; carbonate of alkali metal 3-7; complex fluoride of alkali metal 2-8.
EFFECT: flux cord wire has good welding processing properties, provides atomized transfer, the stability of arch burning and allows to improve the quality of welding joints due to active metallurgical reactions on bonding of steam and hydrogen.
3 cl, 1 dwg, 1 tbl
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