METHOD FOR PRODUCTION OF ROD FROM HEAT-RESISTANT ALUMINIUM ALLOY Russian patent published in 2019 - IPC C22F1/04 C22C21/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy, namely to methods for production of aluminum-based electrotechnical products, used for production of electrotechnical wire and wires of high-voltage power transmission lines. Method involves preparation of a melt containing the following in wt. %: 0.2–0.4 Zr, 0.2–0.4 Si, 0.6–0.8 Fe, Al is rest, at temperature 800–900 °C, crystallisation at rate of 5 °C/s, production of wire by hot deformation of cast billet, winding of rolled wire into coils, thermal treatment of rolled coils at temperature of 200–600 °C for not more than 24 hours with subsequent cooling in air.

EFFECT: technical result is improved conductivity of wire rod without loss of optimum level of heat resistance and mechanical properties.

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