Preparation method of indoor fireproof door

Abstract

The invention relates to a preparation method of an indoor fireproof door. The technical problems that a preparation method of an existing fireproof door is poor in flame retardant effect, the method is inconvenient for automatic production, and the standard fireproof time cannot be reached are solved. The indoor fireproof door comprises a door frame and a door leaf, a door leaf framework, a fireproof expansion sealing piece and a perlite fireproof door core plate are sequentially arranged on the cross section of the door leaf, a gap is formed between the door frame and the door leaf, and the door frame and the door leaf are connected through fireproof hinges. The preparation method comprises the following steps that firstly, multiple layers of wood veneers and a glass magnesium board are pressed on a cold press through fireproof glue; the pressed large board is cut and sawed into battens; the battens are erected, assembled, stacked and framed; and the perlite fireproof plates are placed in the battens, gaps are filled with the fireproof sealing rubber strips, and the fireproof expansion strips play a fireproof role. The method can be applied to the field of preparation of indoor fireproof doors.

Description

technical field [0001] The invention relates to the technical field of fire doors, in particular to a method for preparing an indoor fire door. Background technique [0002] Traditional fire doors are made of solid wood for flame retardancy. It first passes the natural wood through the flame-retardant tank, adds flame-retardant liquid into the tank, puts the wood into the tank, vacuumizes the wood, pressurizes the flame-retardant hydraulic pressure into the wood, and then drains the water and dries it. It is made of wooden squares, cut and pressed together. [0003] This kind of fire door mainly has the following problems: [0004] First of all, in the process of using flame-retardant wood for traditional fire doors, the flame-retardant liquid will evaporate naturally after a long time, so that the real flame-retardant effect cannot be achieved; [0005] Secondly, after the solid wood square is dried and modified, the basic frame operation of the door leaf can be carried ...

AI Technical Summary

Problems solved by technology

[0007] The present invention aims at the technical problems that the flame retardant effect of the fire door prepared by the existing fire door preparation method is not good, the method is not convenient for automatic production, and the standard fire resistance time cannot be reached, and provides a kind of flame retardant effect which is good for automatic production and can Preparation method of indoor fireproof door reaching standard fire resistance time

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