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KAWASAKI STEEL TECHNICAL REPORT@
No.45 (November 2001)
"Developed Machinery Maintenance Technology
in Steelmaking Plant"
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Techniques for Long Life Materials Applied to Continuous Caster Roll

Satoh, Y.; Yamamura, T.; Takimoto, T.
Synopsis :
The purpose of caster roll investigations is to improve productivity and to contribute to energy and resouses saving by means of prolongation of caster roll lives. The experimental results show that thermal cracking is well correlated in terms of physical and mechanical properties of the rolls while steam oxidation is correlated with metallurgical structure at oxidation temperatures. The authors have successfully developed a heat resistant overlay alloy, "Super KBS", and a precipitation hardening overlay alloy, "W 630", for a caster roll equipped with no external cooling device and for that equipped with an external cooling device, respectivety. The two newly developed alloys have been applied to full-scale commercial caster rolls, consequently achieving the prolongation of caster roll lives.
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