Method for producing compressed charing poplar three-layer wood composite flooring

A technology of solid wood composite flooring and production methods, which is applied in the direction of joining of wooden veneers, chemical instruments and methods, layered products, etc., can solve problems such as development restrictions, and achieve simple and easy manufacturing methods, good market prospects, and enhanced texture effect

Inactive Publication Date: 2009-07-22
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
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Problems solved by technology

But even so, a considerable amount of high-quality wood is still needed as a panel in large-scale production, so it is limited in development.

Method used

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  • Method for producing compressed charing poplar three-layer wood composite flooring
  • Method for producing compressed charing poplar three-layer wood composite flooring

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Embodiment Construction

[0018] Attached below figure 1 The poplar three-layer solid wood composite floor of the present invention is described in further detail with example:

[0019] ① Use a frame saw machine or a multi-blade original saw machine to cut the poplar wood into boards, dry, plan, and process them into poplar wood veneers with a thickness of 6.5, 7.5, and 9mm and a moisture content of about 30%, together with the fixture Put them together into a single-layer hot press, compress to 4.5mm, the hot pressing temperature is 100°C, and the compression rates are 30%, 40%, and 50% respectively; after the compression is completed, fix the fixture, release the pressure, and then perform high-temperature carbonization treatment , the treatment temperature is 200°C, and the time is 3 hours. After the treatment, take out the fixture and cool it; when the temperature of the poplar veneer in the fixture drops to 40-60°C, open the fixture, take out the poplar veneer, and sand the poplar veneer The thic...

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Abstract

The invention discloses technology for producing compressed and carbonized poplar three-layer solid wood composite floor fully through utilization of a fast-growing material of poplar. A poplar sheet obtained by a special densification process is used as a surface layer; a common poplar core veneer is used as a core layer; a poplar veneer is used as a bottom layer to manufacture three-layer solid wood composite floor; each performance reaches the requirement of national standard GB/T 18103-2000 on the solid wood composite floor; the technology totally adopts the fast-growing material of the poplar as a raw material, does not add any chemical reagent in the special densification process of the poplar sheet, and does not cause any pollution to environment; after the poplar sheet is subjected to compaction treatment, the density and the hard sense of the wood are strengthened; the late high-temperature carbonization treatment solves the problem of rebounding after the poplar is compressed, changes luster of the wood, and strengthens high grade; and the technology is simple and feasible and has low manufacturing cost.

Description

1. Technical field [0001] The invention relates to a method for producing a three-layer solid wood composite floor by completely using fast-growing poplar as a raw material. The three-layer solid wood composite floor is made of poplar veneer made by special compression and carbonization process as the surface layer, common narrow poplar board as the core layer, and poplar veneer as the bottom layer. Its main features are: the compression carbonization method is adopted in the densification process of the poplar wood veneer, no chemical reagent is added, no pollution is caused to the environment, and the operability is strong. 2. Background technology [0002] With the continuous reduction of the world's timber resources, the supply of high-quality timber raw materials for the timber processing industry is seriously in short supply, and the contradiction between the ever-decreasing timber resources and the growing demand for timber has become more prominent, which has serious...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M3/04B27K5/06B27D1/06B27D1/08B32B21/13
Inventor 邓玉和黄豪陈旻徐了王军
Owner NANJING FORESTRY UNIV
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