A kind of preparation method of thermal insulation board

The invention discloses a kind of preparation methods of thermal insulation board, it will be after the mixture mixing that thermal insulation board be prepared, it loads to the mold of top end opening, then backing plate is placed in mix surface, backing plate is slightly less than dies cavity cross section so that backing plate can take out and drop back into mold out of mold, vibratory equipment is fixed on backing plate, mixture is pressed to the compactness of needs using the mode of action of vibration plus impact, wherein mixture, which can be layered, vibrate plus impacts, the green body of compaction moulding is conserved into molding, obtain the thermal insulation board, obtained thermal insulation board can thickness as needed cut into thin plate.The present invention will prepare the mixture of thermal insulation board compaction moulding several times by the way of vibration plus punching press, increases the thickness of green body after compaction moulding, keeps green body not easy to crack, scaling-off, improve the yield rate of product.