【摘要】 对采用转炉→精炼→连铸→中厚板的生产工艺生产的锅炉压力容器用钢板中的夹杂物来源、形态和分布级别进行了分析。结果表明:夹杂物主要是硫化物、硅酸盐或小级别的氧化物和硫化物,只有极少量的B类氧化铝。在生产工艺控制方面提出了改进措施,实践取得了明显效果,为开发高纯净度锅炉压力容器用钢提供了借鉴。更多还原

【Abstract】 Combined the technics which from convertor,refining,casting to medium plate,the source,shape and distributing level of the non-metallic inclusions in steel plate for boiler and pressure vessel were analyzed.The results showed that the main inclusions were sulfid,silicate,small-grade oxid and sulfid,and little B-type Al2O3.The improvement measures for process control were brought forward,and the effect was satisfying,the reference was offered to develop the high purity steel for boiler and pressure vessel.更多还原