The theory of high efficiency continuous casting, process analysis and synthetic research on all production steps in converter plant are given, the integrated optimization of various production steps and their relationship has been realized, with enormous economic benefits is quite promising.

In addition,the demands of secondary cooling system in high efficiency continuous casting for the performance of spray nozzles are also evaluated and the concept of effective spray coefficient is given out.

This paper has made a survey of the situation of high efficiency continuous casting technology(HECCT),and described HECCT from the viewpoint of technique integration.

By means of reconstructing the secondary cooling system of continuous caster and optimizing technology,the accurate and applicable mathematic model of solidification and heat transfer for billet in high efficient continuous casting process was established.

In this paper the mathematical model of high-efficiency continuous casting of billet is developed.

In this paper the mathematical model of the heat transfer in solidifying process for Rokop billet during high-efficiency continuous casting is developed.

For increasing continuous casting efficiency,practising reasonable matching between steelmaking furnace and continuous casting machine,promoting development of hot charging and hot feeding processes in metallurgical enterprises of Shandong province,the high efficiency reform of continuous casting machine needs to do at speed.