昆钢55万t线材连轧生产线工艺及设备特点

Process and Equipment Characteristics of 550000t Wire Rod Continuous Rolling Line in Kunming Iron and Steel Company

介绍了昆钢55万t线材连轧生产线的生产工艺及平面布置,着重介绍了该生产线的装备水平及技术特点。通过现场取样,采用膨胀法测得HRB400E抗震螺纹钢的连续冷却转变曲线(CCT曲线),得到钢的A_(C1)=758℃、A_(C3)=828℃、Ms=402℃,试验数据可用于指导制定实际生产工艺。生产线投产后,快速达产,给昆钢带来了良好的经济效益,推动了昆钢的快速发展。

The production process and plane layout of a 550000 ton wire rod continuous rolling line in Kunming Iron and Steel Company,Ltd.are introduced,with emphasis on the equipment level and technical characteristics of the line.Through on-site sampling,the continuous cooling transformation curve(CCT curve)of anti-seismic deformed steel bar HRB400E is measured by expansion method,and the A_(c1)=758℃,A_(c3)=828℃ and Ms=402℃of the steel are obtained.The test data can be used to guide the formulation of actual production process.After the line was put into operation,it reached the production capacity quickly,which brought good economic benefits and promoted the rapid development of Kunming Steel.