Abstract
The Chasov-yar Refractories Combine has introduced a technology developed by UNIIO for making zircon nozzles for continuous steel casting equipment. Zircon nozzles possess a high erosion resistance and give a more stable casting for killed and unkilled steels compared with other types of nozzle. Tightening of the nozzles when pouring killed steel depends on a number of factors (amount of reducing agent, casting temperature, chemical composition of the steel, refractory, etc.) and requires further study.
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