Flame-retardant plywood

Abstract

The invention discloses flame-retardant plywood which comprises a plywood body; the plywood body internally comprises a first flame-retardant middle board; the two sides of the first flame-retardant middle board are fixedly connected with first flame-retardant medium density fiberboards; and one sides, far from the first flame-retardant middle board, of the first flame-retardant medium density fiberboards are fixedly connected with second flame-retardant middle boards. The plywood body formed through the matching and gluing of the first flame-retardant middle board, the first flame-retardant medium density fiberboards, the second flame-retardant middle boards, second flame-retardant medium density fiberboards, flame-retardant synthetic wooden sandwich layers, third flame-retardant medium density fiberboards, third flame-retardant middle boards and flame-retardant wooden skin is subjected to flame retardant dipping treatment or flame retardant painting treatment, so that the flame-retardant plywood has the advantages of light volume weight, high strength, texture attractiveness, insulation and the like, and has fireproof, heat-insulation, waterproof and mothproof performance, resources are saved, the production cost is lowered, and the flame-retardant plywood can directly serve as a fireproof wooden door leaf, and meets the market demand more.

Description

technical field [0001] The invention relates to the technical field of plywood, in particular to a flame-retardant plywood. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions of the plywood are glued vertically to each other. The so-called flame-retardant plywood is to impregnate or paint the wood chips or blocks with flame retardants before the production of ordinary plywood. Compared with solid wood, plywood has Many advantages, such as light bulk density, high strength, beautiful texture, insulation, etc.; however, natural wood will naturally produce some defects during processing, such as knots, small format, deformation, and large differences in vertical and horizontal mechanics, and most of them are made of solid w...

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of flame-retardant plywood, which has the advantage of being flame-retardant, and solves the defects of natural wood such as knots, small format, deformation, and large difference in vertical and horizontal mechanics in the processing of natural wood. Most of them are made of solid wood, which greatly wastes social resources, violates the environmental protection concept advocated by the society, and increases production costs and reduces the problem of corporate benefits.

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