High-strength environment-friendly plywood

Abstract

The invention relates to the technical field of plywood, in particular to high-strength environment-friendly plywood which comprises a back plate. The upper surface of the back plate is coated with a phenolic glue layer, and a core plate is bonded and fixed to the upper surface of the back plate through the phenolic glue layer; a waterproof layer is also bonded and fixed on the upper surface of the core plate through the coated phenolic glue layer; the upper surface of the waterproof layer is fixedly connected with a drainage layer; and a surface plate is fixedly mounted at the upper end of the drainage layer. According to the high-strength environment-friendly plywood, by arranging the drainage layer, water flowing down from gaps between transverse plates connected with different kinds of plywood is drained through drainage grooves formed in plate bodies, water flowing down from gaps between longitudinal plates connected with the plywood is drained through L-shaped plates arranged in containing cavities, and through cooperation of transverse drainage and longitudinal drainage, water entering connecting gaps between different kinds of plywood can be drained, then the problem that seawater enters the connecting position of the bottom of the plywood and a steel deck, and then the steel deck is corroded is solved, and the anti-corrosion protection effect of the ship plywood is improved.

Description

technical field [0001] The invention relates to the technical field of plywood, in particular to a high-strength environment-friendly plywood. Background technique [0002] Plywood is one of the three major boards of wood-based panels, which can be used for aircraft, ships, trains, automobiles, buildings and packaging boxes. A group of veneers is usually glued together in vertical direction according to the wood grain direction of adjacent layers. Usually The surface board and the inner board are symmetrically arranged on both sides of the center layer or the board core, and the slabs made of the veneer coated with glue are criss-crossed according to the direction of the wood grain, and are pressed under heating or non-heating conditions. , plywood can improve the utilization rate of wood, which is a main way to save wood. [0003] Ship plywood is a special kind of plywood. It is used for deck and interior decoration in the shipbuilding industry. It is usually laid on the s...

AI Technical Summary

Problems solved by technology

[0005] Although the above comparative patents set the upper and lower layers to be waterproof, which increases the waterproof performance of the plywood, but for the special plywood used on the deck of the ship, such as a fishing vessel, a large amount of seawater will fall on the plywood following the fishing net during the fishing process. However, when the plywood is spliced ​​together, it is usually not completely sealed, and the remaining gap will still allow seawater to enter the joint between the bottom of the plywood and the steel deck. Due to the high salinity of the seawater, the steel deck will be corroded, reducing the Corrosion protection of plywood

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