Flame-retardant veneer laminated fireproof door frame and manufacturing method

Abstract

The invention relates to a flame-retardant veneer laminated fireproof door frame and a manufacturing method. The door frame comprises a framework 1, a fireproof expanded sealing strip 2, a fireproof plate 3 and a decorative splint 4, wherein the framework 1 is made of flame-retardant veneer laminated material, the longitudinal texture of wood grains is parallel to the length directions of the vertical rim and the upper and lower horizontal rims of the door frame, and meanwhile the adhesive layer surface is vertical to the surface of a door leaf 5; and the rim width of the framework 1 is 90 to 110 millimeters, and the thickness is 40 to 50 millimeters. The method comprises the main manufacturing processes of: manufacturing the flame-retardant veneer laminated material by using inferior wood, manufacturing the framework of the door frame by using the flame-retardant veneer laminated material, then pressing the fireproof plate and the decorative splint on a fire receiving surface of the framework, and finally arranging the fireproof expanded sealing strip in a groove on the inner side of the framework. Because the inferior wood is used for manufacturing the fireproof door frame of the flame-retardant veneer laminated material, the use value of the inferior wood is improved, the natural forest resource is protected, and the door frame has high physical and mechanical properties, good flame-retardant performance, low manufacturing cost and deformation resistance.

Description

technical field [0001] The invention belongs to a fire-fighting fire door used in the construction field, and in particular relates to a door frame of a wooden fire-proof door. Background technique [0002] At present, the door frames of wooden fire doors are generally made of high-quality solid wood that has undergone flame-retardant treatment. Due to the large thickness of solid wood, it is difficult to deal with flame-retardant treatment. , but the penetration depth of the flame retardant is still shallow, usually less than 10mm, which makes the flame retardant effect of the flame retardant solid wood poor, and the flame retardant cost is high. After the flame retardant treatment and drying, the solid wood will also be deformed. In the subsequent use process, the flame retardant solid wood needs to be cut and shaped, so that the part of the flame retardant solid wood surface that absorbs the most flame retardant is cut off. Weakened the flame retardant effect of solid wo...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the current problems of less and less high-quality natural wood resources, difficulty in flame-retardant treatment of solid wood, poor flame-retardant effect, and high cost, and to improve the use value of low-quality wood, the invention provides a fire-resistant flame-retardant laminated veneer lumber Door frame and manufacturing method thereof

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