Exothermic type mold additives for continuous casting

Details Exothermic type mold additives for continuous casting Exothermic type mold additives for continuous casting

B - Operations, Transporting

22

D

B22D 11/10 (2006.01) B22D 11/111 (2006.01) B22D 27/20 (2006.01)

Patent

CA 2064469

An exothermic-type mold additive for continuous casting comprises 20-90 wt% base raw materials, 0-10 wt% silicious raw materials containing more than 50 wt% SiO2 content, 0-20 wt% flux raw materials, 2-30 wt% of one or more than one exothermic material selected from a group comprising carbonates, bicarbonates and nitrates of alkaline metals, and 3-30 wt% of one or more than one component as a reducing material selected from a group comprising carbon, silicon and silicon alloys. Oxidation exothermic speed is controlled by controlling the kind and amounts of reducing materials, and casting with little carburization and few inclusions, pin-holes, etc. can be obtained.

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