2018 Volume 59 Issue 693 Pages 195-200
In this study, a single-casting-wheel caster equipped with rotating side-dam plates was proposed to cast a wire rod thinner than 180 mm2. This caster has the advantages of not needing the downstream process and downsizing of the equipment. Rotating side-dam plates solved the jamming of bar dragging. The following four types of rotating side-dam plates were tested. Type A and Type C: Boron nitride (BN) was directly sprayed on to the rotating side-dam plates. Type B1: BN-coated insulator sheet with 2 mm thickness was attached to the rotating side-dam plates. Type B2: BN-coated paper with 0.5 mm thickness was attached. In Type A, Type B1, and Type B2, a puddle of molten metal was formed on the casting wheel. In Type C, the bar was cast by a puddleless pouring method. In Types A, B1, and B2, the sound bars could not be cast. In Type C, the sound bars with rectangular or convex cross section were cast. The cross-sectional area of the convex bars was from 149 mm2 to 59 mm2 and the cross-sectional area of the rectangular bars was from 111 mm2 to 51 mm2 when the casting wheel speed and side-dam plate speed were from 2.5 m/min to 10 m/min.
