【摘要】：通過(guò)鮑爾篩分儀對(duì)不同長(zhǎng)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(cè)其重均纖維長(zhǎng)度,然后采用U8(43)均勻試驗(yàn)法設(shè)計(jì)對(duì)抄取法制備的無(wú)石棉密封墊片進(jìn)行壓縮回彈性能試驗(yàn),通過(guò)多元線性回歸方法研究了壓縮率和回彈率與纖維長(zhǎng)度的關(guān)系,同時(shí)利用得到的回歸方程對(duì)墊片的壓縮回彈性能進(jìn)行預(yù)測(cè),并與試驗(yàn)值進(jìn)行對(duì)比。結(jié)果表明:纖維長(zhǎng)度對(duì)壓縮回彈性能有顯著的影響;隨著纖維長(zhǎng)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(zhǎng)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(cè)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(guó)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(hào)】：TH136
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本文編號(hào)：2174816