Description
Tensile strength at levels 200 to 450 MPa higher than that of JIS piano wire was attained without sacrificing ductility by repeatedly drawing high-carbon steel wires at a speed of 0.05 meters/min. These high strength levels were reached by continuous dry drawing at ordinary speeds when the Kobe direct water cooling system was applied. This paper investigates this process, as well as the strain aging phenomena of drawn high-carbon steel wires with lamellar and spheroidal pearlite structures.
