摘要
易切削钢对塞棒的损毁除高温融熔钢水的冲刷外,还有[Mn]、[O]等物质对棒头材质的侵蚀。以电熔镁砂、鳞片石墨、氮化物等为主要原料,添加复合高温抗氧化剂,采用分阶段保护的方式防止碳的氧化等,研制的塞棒耐材具有优良的高温抗氧化性能,应用表明,高性能整体塞棒浇注12L14易切削钢可连浇6炉,最长浇注时间达6.5 h。
The damage of the stopper caused by free-cutting steel includes the erosion for the material by element Mn and O in the molten steel besides eroding. Taking fused magnesia, flake graphite and nitride as main raw materials, adding composite high temperature antioxidant and preventing the oxidation of carbon by stages protecting, the refractory for stopper with excellent high temperature oxidation resistance was developed. Applications showed that the monolithic stopper was used continuously for six heats in casting free-cutting steel 12L14 and the longest casting time was 6.5 hours.
出处
《山东冶金》
CAS
2010年第4期47-48,50,共3页
Shandong Metallurgy
关键词
整体塞棒
易切削钢
高温抗氧化性
电熔镁砂
monolithic stopper
free-cutting steel
high temperature oxidation resistance
fused magnesia
