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calcium injection into steel bath
met. 钢水熔池喷钙 (处理: The primary purpose of a calcium injection into the steel bath is to convert solid Al₂O₃ inclusions to liquid calcium aluminates to prevent Al₂O₃ from clogging casting nozzles. 钢水熔池喷钙处理的主要目的是将固态 Al₂O₃ 夹杂物转变为液态钙铝酸盐,以防 Al₂O₃ 堵塞水口。)