摘要
在冶炼Cr12N铁素体不锈钢时,发现有气泡产生。用TCH-600氧氮氢联测仪检测出的氮含量不能代表铸锭中氮的实际含量,建立了铸锭中氮的实际含量计算模型。凝固压力越大,铸锭中产生的气泡数量越少,模型计算值与TCH-600氧氮氢联测仪的检测值越接近。当凝固压力为1.8 MPa时,铸锭中的气泡将被完全抑制。
Some bubbles were found when smelting Cr12 N stainless steel. The nitrogen content detection by TCH-600 oxygen nitrogen hydrogen measurement instrument can not represent the actual nitrogen content in the ingot, a calculation model of nitrogen actual content in the ingot was established. The greater of solidification pressure, the less of bubble amount, the closer of detection of nitrogen content by TCH-600 oxygen nitrogen hydrogen measurement instrument with the calculation model. When the solidification pressure is 1.8 MPa, the bubbles in the ingot will be completely suppressed.
出处
《铸造技术》
CAS
北大核心
2015年第5期1089-1091,共3页
Foundry Technology
基金
国家自然科学基金青年基金资助项目(51304060)
河北省自然科学基金资助项目(E2013209113)
关键词
高氮钢
高压铸锭
Cr12N钢
氮含量
high nitrogen steel
high pressure ingot
Cr12N
nitrogen content
