摘要
高速线材的生产特点是速度快,断面形状及内部组织变化复杂,这给生产过程中质量异议的分析与处理带来极大的困难。因此,开发了针对高线生产特点的过程分析模型:针对高线原料为方坯的特点,开发了二维加热温度场模型,可以用于钢坯在加热炉内钢坯内部温度及晶粒长大过程的预报。针对高线轧制过程,开发了自动孔型设计系统和高线轧制工艺参数模型,可以自动显示孔型的充满状况及每道次的工艺参数,如温度、压力及再结晶状况等参数。针对高线冷却线的特点,开发了高线在线温度及组织演变预报模型,可以预测线材在冷却过程中温度及相变过程,并预测最终组织及性能指标。该系统在实际生产中得到应用,并取得良好的生产效果。
Production characteristics of high speed rod are fast speed, complex section and internal microstructure evolution, which bring great problems to analyze and solve the quality disputes. Therefore, a serial process models have been developed based on the characteristics of high speed rod： due to rod stock to be square section, a two di- mension model has been developed to predict the evolution of internal temperature and grain coarsening. As for the rod rolling process, an automatic section design system has been written, which can show section filling condition and process parameters such as temperature, pressure and recrystallization etc per pass. As for rod cooling stage, an integrated model which coupled phase transformation, temperature and final properties was developed and applied in real production with good results.
出处
《中国冶金》
CAS
2011年第4期8-11,共4页
China Metallurgy
关键词
高速线材
加热
孔型
轧制参数
控制冷却
high speed rod
reheating
section designing
rolling parameters
controlled cooling
