卷烟用爆珠压破强度和变形量检测参数的优化

Optimization of Detection Parameters for Crushing Strength and Deformation Amount of Cigarette Breakable Capsules

采用万能材料试验机检测卷烟用爆珠的压破强度和变形量,并通过统计学方法对涉及的关键参数如样本量、平衡时间、预压力、压缩速率和样品台孔径分别进行了比较和研究。结果表明:样品台孔径对压破强度和变形量检测结果的影响较大,而预压力和压缩速率对检测结果的影响较小;样本量则主要影响检测结果的精密度;在一定温度、湿度条件下,平衡时间会影响变形量。检测方法的最优参数为,样本量取50颗烟用爆珠、样品在温度(22±1)℃和相对湿度(60±3)%的环境中平衡24 h、预压力为0.01 N、压缩速率为10 mm.min-1及使用无孔样品台。基于万能材料试验机,以最优参数建立的烟用爆珠压破强度和变形量的检测结果较为稳定、准确。

The crushing strength and deformation amount of cigarette breakable capsules were tested by universal material testing machine,and the key parameters,such as sample size,equilibration time,pre-pressure,compression rate and the bore diameter of sample table,were compared and studied by statistical methods.The results show that the bore diameter of sample table had a great influence on test results of crushing strength and deformation amount,while the pre-pressure and compression rate had little influence on test results.The sample size mainly affected the precision of test results.The deformation amount was affected by equilibration time under certain temperature and humidity conditions.The optimal parameters of detection method were as follows 50 cigarette breakable capsules as sample size,equilibrating for 24 h at(22±1)℃and relative humidity(60±3)%,pre-pressure of 0.01 N,compression rate of 10 mm·min-1,and the use of non porous sample table.Based on the universal material testing machine,the detection results of crushing strength and deformation amount of cigarette breakable capsules based on the optimal parameters is stable and accurate.