【摘要】：通過鮑爾篩分儀對不同長度的纖維素纖維、芳綸漿粕纖維和礦物棉纖維進(jìn)行篩分并測其重均纖維長度,然后采用U8(43)均勻試驗(yàn)法設(shè)計(jì)對抄取法制備的無石棉密封墊片進(jìn)行壓縮回彈性能試驗(yàn),通過多元線性回歸方法研究了壓縮率和回彈率與纖維長度的關(guān)系,同時利用得到的回歸方程對墊片的壓縮回彈性能進(jìn)行預(yù)測,并與試驗(yàn)值進(jìn)行對比。結(jié)果表明:纖維長度對壓縮回彈性能有顯著的影響;隨著纖維長度的增加,墊片的壓縮率逐漸增大,回彈率逐漸減小,其中芳綸漿粕纖維長度的影響最為明顯;利用回歸方程得到墊片壓縮回彈性能的預(yù)測值與試驗(yàn)值比較接近。
[Abstract]:Cellulose fibers of different lengths, aramid pulp fibers and mineral cotton fibers were screened by Bauer sieve apparatus. Then U8 (43) uniform test method was used to design the compression resilience test of the asbestos-free seal gasket prepared by the copying method. The relationship between the compression ratio, the springback rate and the fiber length was studied by the multivariate linear regression method. At the same time, the regression equation is used to predict the compression resilience of gasket, and the results are compared with the experimental results. The results show that the fiber length has a significant effect on the compression resilience, and with the increase of fiber length, the compression ratio of gasket increases gradually, and the springback decreases gradually, among which the effect of fiber length on the fiber length of aramid pulp is the most obvious. The predicted value of the compression resilience of gasket obtained by regression equation is close to the experimental value.
【作者單位】： 昆明理工大學(xué)機(jī)電工程學(xué)院;
【基金】：國家自然科學(xué)基金資助項(xiàng)目(51165014) 云南省科技計(jì)劃項(xiàng)目(2012FB130) 云南省教育廳科學(xué)研究基金資助項(xiàng)目(2012Y540)
【分類號】：TH136
，

本文編號：2174816