机械科学与技术2024，Vol.43Issue(1)：64-72,9.DOI:10.13433/j.cnki.1003-8728.20220207
C70600白铜空心锭立式连铸工艺参数对凝固过程的影响
Influence of Process Parameters on Solidification Process in Vertical Continuous Casting of C70600 White Copper Hollow Ingot
摘要
Abstract
In order to obtain the reasonable process parameters in the vertical continuous casting of large diameter∅260×∅80 C70600 cupronickel alloy hollow ingot,the effects of the processing parameters on the temperature field and stress field were quantitatively analyzed by using numerical simulation.The results show that the sump depth increases by 10 mm when the casting temperature increases by 20℃,and the sump depth increases by 20 mm when the drawing speed increases by 10 mm/min.The sump depth decreases with the increasing of cooling strength of the graphite core tube.Based on the orthogonal test and variance analysis:FA>F0.01(3,3),FB>FD>F0.1(3,3),FC<F0.1(3,3),therefore,the sump depth is extremely sensitive to the drawing speed,the sump depth is not sensitive to the drawing speed primary cold strength.According to the simulation results,the reasonable processing parameters are as follows:primary cooling strength of 24 m3/h,drawing speed of 80 mm/min,casting temperature of 1 280℃,and air cooling for core tube,on this basis,the C70600 cupronickel alloy hollow ingots were successfully produced.关键词
立式连铸/工艺参数/空心锭/液穴深度/应力场/数值模拟Key words
vertical continuous casting/process parameters/hollow ingot/sump depth/stress field/numerical simulation分类
金属材料引用本文复制引用
蔡军,杨清相,乔柯,王文,王快社..C70600白铜空心锭立式连铸工艺参数对凝固过程的影响[J].机械科学与技术,2024,43(1):64-72,9.基金项目
国家自然科学基金重点项目(U1760201,5203405)、国家自然科学基金项目(51974220)及陕西省重点研发项目(2020ZDLGY13-06) （U1760201,5203405）
