(東北大學(xué) 材料與冶金學(xué)院， 沈陽 110004)
摘 要: 采用自制的沸騰平板導(dǎo)熱儀測量防滲料在不同狀態(tài)下的導(dǎo)熱系數(shù)， 利用坩堝法測量防滲料的抗?jié)B性能。 結(jié)果表明： 防滲料的導(dǎo)熱系數(shù)隨密度的增大而增加， 使用過的防滲料導(dǎo)熱系數(shù)要比新的大一些； 防滲料的抗?jié)B能力與堆積密度有關(guān)， 搗實狀態(tài)下的抗?jié)B能力比松散狀態(tài)的好， 鋁液能夠使電解質(zhì)向防滲料的滲透量增加， 在電解質(zhì)中加入鋁塊后， 防滲料的抗?jié)B能力減弱。
關(guān)鍵字: 鋁電解槽； 干防滲料； 導(dǎo)熱性； 抗?jié)B性
（School of Materials and Metallurgy, Northeastern University,
Shenyang 110004, China）
Abstract: The thermal conduction coefficient of dry barrier powder materials was determined by home-made apparatus of thermal conduction coefficients by water boiling heat exchange method, and its anti-penetration was also determined by crucible method. The results show that the thermal conduction coefficients of dry barrier powder materials increase with increasing density. The thermal conduction coefficients of the used materials are bigger than that of the new one. The anti-penetration is relative to accumulative density, and the anti-penetration of compact materials is better than that of loosening materials. The anti-penetration of dry barrier powder materials is weakened under the same condition of an industrial cell.
Key words: aluminium electrolytic cells; dry barrier powder materials; thermal conduction; anti-penetration
