Design of continuous casting machines based on a heat-flow analysis: state-of-the-art review
1976; Taylor & Francis; Volume: 15; Issue: 2 Linguagem: Inglês
10.1179/000844376795050796
ISSN1879-1395
Autores Tópico(s)Metallurgical Processes and Thermodynamics
ResumoAbstractThe design of the mould and spray sections of a continuous casting machine for steel has been examined in detail with the aid of a heat-flow mathematical model. The thermal requirements that the design must meet have been established using Experimental data obtained from commercial continuous-casting machines. For the mould, the requirement is the solidification of a sufficiently thick shell; for the sprays, the requirements are the minimization of surface reheating and the maintenance of a reasonably high solidification rate. Correlations are developed which relate the working mould length, casting speed and shell thickness at the mould exit. Design curves are also presented of spray length, spray heat transfer. coefficient and water flux distributions for two sizes of billets. The method by which the theoretical spray water flux distribution can be related to practical spray parameters — spray pressure, nozzle type and arrangement — is also discussed. Resume On a etudie en detail, a l'aide d'un ...
Referência(s)