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The objective of the project was the development of a process for casting slabs measuring 400 x 50 mm. A new type of two part casting die was used for this. The feed part was made up of a one-sided closed Cu-part with 3 small, round openings for the pull-off rings in the water-cooled rear wall. Further cooling and support of the continuous casting shell was provided by cooled plates as used in conventional slab plants.

The cooling of the casting die used at the beginning was insufficient; it was completely destroyed in the 3rd cast by partial melting. A new improved casting die allowed casting times of over an hour, but longer casting times led to cracks in the cooled back wall of the casting die, presumably caused by fatigue in the casting die material.

Slabs with a good surface were cast under stable casting conditions; these could be rolled to dimensions between 5 and 15 mm without any surface treatment. Rolling from 15 mm to 5 mm rectified inhomogeneous slab jointing. Basically it was possible to cast and roll slabs with dimensions of 400 x 50 mm. Unalloyed material such as medium alloyed and high alloyed chromium steels with up to 18% chromium was also cast. The objective to cast whole ladles was not achieved due to the casting dies having such a low serviceable life. fe.

Additional information

Authors: STADLER P, BGH Edelstahl Siegen GmbH, Siegen (DE)
Bibliographic Reference: EUR 20071 DE (2002), pp.60. Euro: 8.50
Availability: EUR-OP reference: KI-NA-20071-DE-S. Available from EUR-OP sales agents. URL:
ISBN: ISBN: 92-894-2153-3
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