Method and apparatus for continuously hot-stretching a steel cable

摘要: A method of hot-stretching a cable and an apparatus for practicing the same in which first, second third capstans different diameters, having common rotating shaft, grooves on circumferential surfaces thereof winding plurality turns are provided parallel between stranding machine but side machine. First guide pulleys machine, is wound around said through first capstan, pulley, pulley capstan. front heat treatment equipment heating capstans, rear capstans. The operated such manner that operating speed increased to predetermined low after start, maintained period time, gradually rated speed. selectively as required, while part lying subjected tension, so whole length stranded until reaches starting continuously effectively treatment.