To adapt to the installation in railroad tracks bimetallic steel-copper stranded wire

摘要

Bimetallic stalemednoj stranded wire of 70 to 120 mm, stranded of bimetallic wire with steel core and the copper sheath having a conductivity of not more than 50% of the copper wires of the same cross section, characterized in that it is annealed at a temperature of 750 to 850C of at least 30 min with reduced strength and stiffness of said wires.