3Ralf Thome,Klaus Harsfe. Principles of billet soft-re- duction and consequences for continuous casting [J]. ISIJ International,2006,46(12)..1 839--1 844.
4Kuyng ShikOh,Development of soft reduction technol- ogy for the bloom caster at Pohang Works of Posco [J ]. Steelmaking Conference Processing, 1995, 78: 301--308.
