喷射成形中的下级雾化器参数优化
Atomizer Parameter Optimization in Spray Forming
李放 1马万太 1陈剑州1
作者信息
- 1. 南京航空航天大学 机电学院,江苏 南京 210016
- 折叠
摘要
针对喷射成形锭坯的孔隙较大问题,研究了下级雾化器参数优化策略.基于下级雾化器参数对气流场的影响规律控制熔滴的状态变化,以此来减小锭坯的孔隙.针对不同的下级雾化器的顶角、喷嘴直径和雾化气体压力,分析气流场的变化,得到这 3 个参数对气流场的影响规律,进行喷射成形实验.结果表明:在下级雾化器参数优化后,熔滴的雾化效果明显提高,且采用优化后的下级雾化器参数制备的铝合金锭坯孔隙更小.
Abstract
The parameter optimization strategy of atomizer is studied regarding the large porosity of spray forming ingot blanks.Based on the influence of the atomizer parameters on the airflow field,the state change of the droplet is controlled to reduce the porosity of the ingot blank.According to different topangles,nozzle diameters and atomizing gas pressures of the atomizer,the changes of the airflow field are analyzed,the influence law of these three parameters on the airflow field is obtained,and injection molding experiments are carried out.The results show that after the optimization of the atomizer parameters,the atomization effect of the droplets is significantly improved,and the pores of the aluminum alloy ingot billet prepared by the optimized atomizer parameters are smaller.
关键词
喷射成形/孔隙/气流场/下级雾化器参数优化Key words
spray forming/void/airflow field/atomizer parameter optimization引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据