热风炉用硅砖

/* 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;}项目规定数复验允许偏差RG-95化学成分/%SiO2≥95-1Al2O3≤1.0+0.1Fe2O3≤1.3+0.1显气孔率/%≤22（24）+0.5显密度/（g/cm3）≤2.32+0.01常温耐压强度/MPa≥45（35）-10（-7）残余石英/%≤1.0-荷重软化温度（T0.6）/℃≥165020蠕变率（0.2MPa×1550℃×50h）/%≤0.8-热膨胀率（1000℃）/%≤1.25-规定值与复验允许偏差一栏中包括弧内规定的数值为手工成型的指标。如果必要，可提供室温1200℃热膨胀曲线。