炼钢时添加稀土是提高钢材品质的有效途径,但在浇铸过程中浸入式水口容易发生堵塞.通过SEM、EDAX、XRD分析浇铸稀土钢后铝碳质浸入式水口的显微结构以及附着物的相组成,发现附着物以稀土铝酸盐和钙黄长石为主.低熔点液相的形成以及Ca2+与刚玉的反应对附着的发生起促进作用,并对附着发生的机理进行了分析.
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