论文部分内容阅读
本文论述了应用控制轧制理论提高0Cr18Ni10Ti管材成材率和综合性能以及节省能源的研究成果。在研制过程中,为了提高该钢种的高温塑性和成材率并且细化其晶粒,在分析工业试验结果的基础上确定了合理的加热制度和控制最适宜的热轧温度;在研究形变量对细化晶粒及强韧化效果影响的基础上确定了最佳的临界形变量;根据电渣重熔管坯具有定向结晶的特征,采用电渣管坯底端作为轧制前端进行顺或逆轧制方向的工艺试验,取得了改善管材内表面质量的明显效果;采用抢温快轧和利用终轧高温进行水淬方法,不仅提高了管材综合性能,而且省去了固溶处理工序,从而节约了能源。
This article discusses the application of controlled rolling theory to improve the 0Cr18Ni10Ti pipe material yield and overall performance and energy saving research results. In the process of development, in order to improve the high temperature plasticity and yield of the steel grade and refine its grain, a reasonable heating system and the most suitable hot rolling temperature were determined based on the analysis of industrial test results. Based on the characteristics of grain refinement and strengthening and toughening effect, the optimal critical deformation amount was determined. According to the characteristic of directional crystal of electroslag remelting tube, the bottom end of electroslag tube was used as the front end of rolling, Reverse rolling direction of the process test and achieved a significant effect to improve the quality of the pipe surface; the use of fast-grab warm and use of high temperature finishing rolling water quenching method not only improves the overall performance of the pipe, and eliminating the need for solution treatment process, Thus saving energy.