SPRAY FORMING LARGE DIAMETER SPECIAL STEEL BILLETS

摘要

This project is of four years duration and is carried out with the financial aid of the European Coal and Steel Community. It has the fundamental aim of demonstrating the applicability of spray forming as a viable process for industrial scale steel production. The Osprey process has potential for the production of billets in special steels. However, earlier studies had shown that the technology was not developed sufficiently to permit production on an industrial scale. This was because of an absence of the understanding of the process control required for large billets. The objective of the project has been to extend the technology of spray forming steel in the horizontal mode to produce billets up to 400mm diameter and by up to 1200kg in weight. Work conducted within the project is described including the construction of the demonstration plant, commissioning, process development, evaluation and extension of the process from the initial trials on D2 steel to other materials.