In this paper，we designed a new kind of aluminum silicate fiber paperboard machine basing on the characteristic of aluminum silicate fiber and papermaking technology while some related process was studied in this paper. The aluminosilicate fiber board was prepared by the process of wet forming vacuum filter and microwave drying. The well strength performance was obtained by adding the high temperature resistant inorganic and organic adhesives. Considering these properties, we designed the aluminum silicate fiber paperboard machine with the pulp consistency of 1～2%, the paper machine speed of 1.5m/min, the width of 2m, the apparent density of 200～350Kg/m3 and the thickness of 20mm～50mm. The insulation board can be resistant up to 1200°C.

The preparation of alumina silicate refractory fiberboard by wet vacuum filter molding process, alumina silicate fibre is the matrix material, and high-temperature resistance adhesive is the agglutinant. Experiments made in conditions of no liquid glue, and not adding fiber, influence of cycling time on liquid glue concentration, density of fiberboard, and retention of cementing compound was studied; effect of density of fiberboard on thermal conductivity is also discussed. The results showed that the optimum liquid glue concentration is 9.41%, cycling time is 28h (replenish liquid glue after 28h). Density of alumina silicate fiberboard is 289kg/m3, and alumina silicate fiberboard can resistance to 1200 °C.