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首页> 外文会议>AIST steel properties amp; applications conference proceedings combined with MSamp;T' 10 materials science and technology 2010 >Comparison of the Slag Rim Formation of Two Different Mold Powders
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Comparison of the Slag Rim Formation of Two Different Mold Powders

机译：两种不同防霉粉炉渣边缘形成的比较

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摘要

Two fluorine containing mold powders with a SiO_2 content of 37.0 mass% and 17.3 mass% were characterized concerning their slag rim formation behavior. Both were in contact with high-aluminum-containing steel. Under service conditions, significant differences in slag rim size have been observed from both mold powders. The melting and solidification of these original powders have been defined by simultaneous thermal analysis. The viscosity at l,300℃ and the break temperature were determined by a rotary viscometer. In addition, quench tests were performed in the range of 500℃-l,200℃. These results were compared with the structure of the polished cross sections of the slag rim samples. It was concluded that the size of the slag rims is influenced by the melting range of the mold powders. Due to the alumina pick-up of the slag, cuspidine was not the dominating mineral phase in the crystallized parts of the rims.
机译：SiO 2含量为37.0质量％和17.3质量％的两种含氟防霉粉的渣缘形成行为被表征。两者都与高铝含量的钢接触。在使用条件下，两种铸型粉末的炉渣边缘尺寸均存在显着差异。这些原始粉末的熔化和固化已通过同时热分析确定。用旋转粘度计测定在1300℃下的粘度和断裂温度。另外，在500℃-1200℃的范围内进行淬火试验。将这些结果与炉渣边缘样品的抛光横截面的结构进行了比较。得出的结论是，炉渣边缘的尺寸受防霉粉的熔化范围影响。由于炉渣中氧化铝的吸收，在轮辋的结晶部分中，cuspidine不是主要的矿物相。

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