The invention relates to a preparation method of a high-
flame-retardant artificial plate. The preparation method comprises the following steps:
sawdust and
wood shavings are selected, impurities like
silt, dust and
scrap iron are removed through sieving and magnetic attraction, pulverizing is carried out, then an obtained material is steamed at 110-120 DEG C for 15-30min, and then is dried till a water ratio is lower than 5.0%, an obtained dried
raw material and high-
flame-retardant
adhesive powder are mixed uniformly in a material mixing
machine, and after blank loading, primary
hot pressing and cooling are carried out, a sandwich layer is obtained; and an upper
surface layer and a lower
surface layer which are made of 1.0-1.2mm thick veneers are prepared, the surfaces, fitted with the sandwich layer, of the upper
surface layer and the lower surface layer are coated with appropriate amounts of molten high-
flame-retardant
adhesive powder, then the upper surface layer and the lower surface layer are combined with the sandwich layer together, and after secondary
hot pressing, cooling, edge
cutting and
polishing processes are carried out, the high-flame-retardant artificial plate is produced. The temperature of the primary
hot pressing is 110-120 DEG C, the time is 20-50s, the pressure is 6-8MPa; and the temperature of the secondary hot pressing is 120-130 DEG C, the time is 10-15s, and the pressure is 4-6MPa. The high-flame-retardant artificial plate has the excellent flame retardant property, and can be
cut freely as required in a using process, and the color of the
cut edge does not affect the using effect.