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

A technology of solid wood composite flooring and laminated veneer lumber, which is applied to wood processing equipment, floors, manufacturing tools, etc., can solve the problems of loss of solid wood composite flooring mechanical properties, warping and deformation of solid wood composite flooring, and failure to achieve balance. Achieve the effects of good mechanical properties, avoid warping and deformation, and low manufacturing cost

Inactive Publication Date: 2009-10-07
冯桔红 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 len

Method used

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

Examples

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Embodiment 1

[0031] The present invention utilizes the production technology and production equipment of existing laminated veneer lumber and solid wood composite floor, and adopts the following process steps:

[0032]1. Cut the poplar wood into veneers with a thickness of 3mm, dry the veneers to a moisture content of 8%, and repair the defects of the veneers, such as knots, insect holes, and decay;

[0033] 2. Through a series of processes such as veneer finishing, gluing, billet assembly, cold pressing, and hot pressing, the veneer is made into a laminated veneer lumber slab with a thickness of 135mm that is mainly assembled along the grain. Among them, veneer finishing refers to the preparatory work of veneer lengthening and billet assembly; the adhesive is modified urea-formaldehyde resin glue, and the amount of glue applied is 350g / m on both sides 2 ;The cold pressing condition is: keep the pressure of 1.2MPa at room temperature for 120 minutes; the hot pressing condition is: the temp...

Embodiment 2

[0038] Change the process step 2 of Example 1 to: through a series of processes such as veneer finishing, gluing, billet assembly, cold pressing, and hot pressing, the veneer is made into a veneer layer with a thickness of 70mm as the main billet along the grain Lumber slabs. The adhesive is modified urea-formaldehyde resin, and the amount of glue applied is 350g / m2 on both sides; the cold pressing conditions are: 1.0MPa pressure at room temperature for 120 minutes; the hot pressing conditions are: temperature 110°C, time 1 minute / mm, pressure 1.0MPa ;

[0039] Change the process step 3 of Example 1 to: prepare a laminated veneer lumber slab with a thickness of 70 mm, use a multi-blade saw to strip the laminated veneer lumber slab, and use a four-sided planer to cut the laminated veneer lumber slab Processed into slats with a width of 68mm and a thickness of 14.2mm, the obtained LVL slats are then spliced ​​laterally into slats with a width of 136mm and a thickness of 14.2mm,...

Embodiment 3

[0042] 1. Cut the poplar wood into veneers with a thickness of 3mm, dry the veneers to a moisture content of 8%, and repair the defects of the veneers, such as knots, insect holes, and decay;

[0043] 2. Through a series of processes such as veneer finishing, gluing, billet assembly, cold pressing, and hot pressing, the veneer is made into a laminated veneer lumber slab with a thickness of 60mm that is mainly assembled along the grain. The adhesive is modified urea-formaldehyde resin glue, and the amount of glue applied is 350g / m on both sides 2 ;The cold pressing condition is: keep the pressure of 1.0MPa at room temperature for 90 minutes; the hot pressing condition is: the temperature is 110°C, the time is 1 minute / mm, and the pressure is 1.0MPa;

[0044] 3. Prepare a laminated veneer lumber slab with a thickness of 60 mm, and use a multi-blade saw to strip the laminated veneer lumber slab to obtain a strip with a width of 60 mm and a thickness of 14.2 mm, and the obtained l...

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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...

Claims

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Application Information

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IPC IPC(8): E04F15/04B27M3/04
Inventor 冯桔红顾波
Owner 冯桔红
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