DOUBLE-TWISTED STEEL ROPE WITH COMPACT METAL CORE Russian patent published in 2021 - IPC D07B1/00 

FIELD: rope production.

SUBSTANCE: invention relates to the field of rope production. It is used as lifting ropes on traveling, gantry cranes and other lifting mechanisms. To solve the problem and achieve the expected result, a double-twisted steel rope is proposed, consisting of 4-18 outer strands, according to the type of strip-touch twist, twisted around a double-twisted metal core, plastically compressed in the whole cross-sectional area by 12-20%; at the same time, the ratio of the diameter of the rope to the diameter of the metal core is D_r/D_c = 1.25-5.50; during manufacture, the rope is subjected to preliminary drawing, amounting to 30-50% of the aggregate strength of the rope.

EFFECT: invention provides obtaining a rope with an extended service life, which has high fatigue strength, high aggregate strength, high modulus of elasticity, maximum filling of the section with metal, corrosion resistance.

5 cl, 1 dwg, 1 tbl