/* Style Definitions */ table.MsoNormalTable{mso-style-name:普通表格;mso-tstyle-rowband-size:0;mso-tstyle-colband-size:0;mso-style-noshow:yes;mso-style-parent:"";mso-padding-alt:0cm 5.4pt 0cm 5.4pt;mso-para-margin:0cm;mso-para-margin-bottom:.0001pt;mso-pagination:widow-orphan;font-size:10.0pt;font-family:"Times New Roman";mso-fareast-font-family:"Times New Roman";mso-ansi-language:#0400;mso-fareast-language:#0400;mso-bidi-language:#0400;}輕質(zhì)高鋁磚一般是指Al2O3含量大于45％的輕質(zhì)磚。輕質(zhì)高鋁磚通常采用泡沫法生產(chǎn)，熟料磨碎后與結(jié)合劑(如粘土)和發(fā)泡劑混合配制漿料，澆注成型于1350～1500℃燒成。一般輕質(zhì)高鋁磚的體積密度為0.4～1.35g/cm3，氣孔率為66％～73％，耐壓強(qiáng)度為1．3～8．1MPa，熱導(dǎo)率為0.291～0.582W·(m·℃)。輕質(zhì)高鋁磚的耐火度高．抗熱震性好，常用作爐窯的高溫隔熱層。優(yōu)質(zhì)輕質(zhì)高鋁磚可用于與火焰直接接觸的爐窯內(nèi)襯，但不易用于受熔渣直接侵蝕的部位。