摘要
采用相同工艺参数,分别通分过理论计算和实验分析获得了发泡时间与发泡温度对泡沫铝气泡半径的影响规律。随着发泡时间从36 s延长至72 s,理论计算的气泡半径值从3.05 mm增大至6.11mm;而实验获得的气泡半径值则从1.62 mm增大到5.35 mm,且增大的趋势明显减缓。当发泡温度从953 K升高至993 K时,理论计算的气泡半径从2.25 mm增大到2.88 mm;实验获得的气泡半径值则从3.45 mm增大到5.03 mm,且增大的趋势也明显减缓,理论计算值约为实验获得值的1/2。
The laws of effects of foaming time and foaming temperature on the bubble radius in aluminum foam were obtained by theoretical calculation and experimental analysis with the same process parameters. As the foaming time increases from 36s to 72s, the bubble radius from the theoretical calculation enlarges from 3.05 mm to 6.11 ram, while the bubble radius from the experiment increases from 1.62 mm to 5.35 ram, an obvious decrease in the acceleration trend appears. When the foaming temperature raise from 953 K to 993 K, the bubble radius from theoretical calculation increases from 2.25 mm to 2.88 ram, while the bubble radius in the experiment increases from 3.45 mm to 5.03 mm and also has an apparent decrease in the acceleration trend. The numerical value of the bubble radius from the experiment is 2 times as much as counterparts from the theoretical calculation.
出处
《热加工工艺》
CSCD
北大核心
2011年第24期110-114,共5页
Hot Working Technology
基金
国家自然科学基金资助项目(51165010)
江西省教育厅青年科学基金项目(GJJ09588)
井冈山大学自然科学项目(JZ0807)
关键词
泡沫铝
理论计算
发泡时间与发泡温度
aluminum foam
theoretical calculation
foaming time and foaming temperature
