Parquet using laminated veneer lumber strip as base material and production method thereof

Abstract

The invention discloses a parquet using laminated veneer lumber strip as base material and the production method thereof. The parquet is composed of a surface layer and base material or composed a surface layer, a bottom layer and base material there between. The base material is laminated veneer lumber strip which is manufactured by dividing the laminated veneer lumber into strips; In the dividing process, the sawing direction is perpendicular to the surface of the laminated veneer lumber while parallel with the fiber of the laminated veneer lumber; and the sawed surface while dividing is used as compounding surface to the surface layer. The parquet produced in the invention achieves the advantages of high size stability, excellent mechanical properties and low manufacturing cost.

Description

(1) Technical field [0001] The invention relates to a solid wood composite floor using laminated veneer lumber strips as a base material and a production method thereof. (2) Technical background [0002] The floor of current family interior decoration mainly adopts solid wood floor or solid wood composite floor. Solid wood flooring is entirely made of natural logs, which are expensive and difficult to supply; solid wood composite flooring usually uses adhesives to glue veneers with a thickness of 0.5mm to 5mm and plywood with a thickness of 5mm to 18mm through cloth glue, billet formation, cold pressing, hot pressing, It is made by a series of processes such as keeping in good health, tenoning and grooving, and painting. Compared with solid wood flooring, solid wood composite flooring saves a lot of natural and precious logs and retains its unique texture, texture and color. It is loved by people and has broad market prospects. [0003] Solid wood composite flooring usuall...

AI Technical Summary

Problems solved by technology

The plywood achieves the uniformity of the plywood sheet through the symmetry in the thickness direction and the vertical and horizontal cross formation of the adjacent veneers. Therefore, after the surface veneer is compounded on the symmetrical and uniform plywood base material, the original balance is destroyed, and Even if the plywood base material and the surface veneer composite can achieve symmetry in the thickness direction, since the tree species of the plywood base material and the surface veneer are different, they have different drying shrinkage and wet expansion rates, and a complete balance cannot be achieved. When the moisture content changes, the stress caused by shrinkage and expansion cannot be completely offset, which will cause the parquet to warp and deform

Especially when the solid wood composite floor has a large length or is used as a geothermal floor, the probability of warping and deformation is greater. Therefore, usually large-scale solid wood composite floor and geothermal floor will have grooves on the back, such as a solid wood floor with a specification of 910mm×125mm×15mm Composite flooring, grooves are made on the back, the groove width is 1.8mm, the groove depth is 4mm, and the groove spacing is 80mm. The floor with back grooves has grooves of 2mm every 80mm in the length direction, so the dry shrinkage and wet expansion will not occur. Accumulation in the length direction leads to warping and deformation of the solid wood composite floor, but the open back groove of the solid wood composite floor will greatly lose the mechanical properties of the solid wood composite floor itself, especially the static bending strength and elastic modulus

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