a[O]及[C]、[Si]对焊条钢铸坯气泡缺陷的影响  

The Influence of a[O],[C]and[Si]Content on Carbon Steel Electrode Quality

作　　者：闫绍维 刘作金 白连臣 刘景元 

机构地区：[1]河北唐银钢铁有限公司,河北唐山063000

出　　处：《南方金属》2015年第6期13-17,共5页Southern Metals

摘　　要：a[O]及[C]、[Si]对焊条钢铸坯气泡具有重要影响.一般认为,钢中a[O]是影响焊条钢铸坯气泡的最主要因素,但忽视了其它元素对气泡的影响,a[O]与[C]、[Si]等元素的共同作用对铸坯是否产生气泡缺陷起着决定性作用.文章分析了a[O]及[C]、[Si]等元素含量对H08A气泡缺陷及钢水可浇性的影响,在理论分析和生产实践的基础上,提出了合理的控制措施,使气泡缺陷率由改进前的10.7!减少到改进后的0.6!,钢水可浇性差炉次由改进前的8.5!减少到改进后的0.2!,取得显著效果.a [ O ], [ C ], and [ Si ] content of steel makes an important effect of H08A carbon steel electrode, a [ O ] was generally considered as the most important factor which led to bubble billet, but it ignored the influence of other elements, the common function of a[ O], [ C] and [ Si] made decisive effect of bubble billet. This paper analyzed the content of a [ O], [ C] and [ Si] in molten steel for bubble billet and cast ability. On the base of production practice and theoretical a- nalysis, this paper puts forward the reasonable control measures, it makes the bubble billet ratio reduce from 10. 7%to 0. 6 %and bad cast ratio reduce from 8. 5 %to 0. 2 %.

关 键 词：气泡 脱氧 钢水质量 焊条钢 H08A 

分 类 号：TG142.13[一般工业技术—材料科学与工程]