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Restoring method of bent and raised veneer

A veneer and seesaw technology, applied in wood treatment, wood processing equipment, wood treatment details, etc., can solve the problems of long production cycle, high production cost, complicated process, etc., and achieve low production cost, short production cycle and simple process Effect

Active Publication Date: 2011-06-08
ZHEJIANG SHIYOU TIMBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a recovery method for sawtooth veneer, which solves the technical problems of complex technology, long production cycle, high production cost and environmental pollution in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Take oak as an example. Use a frame saw to saw the 21mm thick dry oak veneer into 3.5mm thick veneer, stack 4 pieces of oak veneer with a thickness of 3.5mm with tile deformation, and then use spacers to separate each layer of veneer After opening, they are piled up in piles with a spacing of 200mm. Then heat up the temperature, and after the temperature of the oak veneer rises to 90° C., keep it at 90° C. for 45 minutes. Then feed steam to allow the oak veneer to be treated for 50 minutes under high temperature and high humidity conditions of 95° C. and relative humidity of 98%, so that the deformed oak veneer of the tile is restored to straightness. Finally, the restored straight oak veneer was dried for 20 hours under the conditions of temperature 50° C. and relative humidity 60%, so as to obtain dry straight veneer.

Embodiment 2

[0023] Embodiment 2: take oak as an example. Use a frame saw to saw the 21mm thick dry oak veneer into 4.5mm thick veneer, stack the 4.5mm thick oak veneer with tile deformation into a layer, and then use spacers to separate each layer of veneer After opening, they are piled up in piles with a spacing of 280mm. Then heat up, and after the temperature of the oak veneer rises to 100°C, keep it at 100°C for 40 min. Then feed steam to allow the oak veneer to be treated for 30 minutes at 100° C. and a relative humidity of 98% under high-temperature and high-humidity conditions, so that the deformed oak veneer of the tile is restored to straightness. Finally, the restored straight oak veneer was dried for 20 hours under the conditions of temperature 60° C. and relative humidity 60%, so as to obtain dry straight veneer.

Embodiment 3

[0024] Embodiment 3: take oak as an example. Use a frame saw to saw the 21mm thick dry oak veneer into 2.5mm thick veneer, stack the 2.5mm thick oak veneer with tile deformation, every 2 pieces into a layer, and then use spacers to separate each layer of veneer After opening, they are piled up in piles with a spacing of 100mm. Then heat up, and after the temperature of the oak veneer rises to 70° C., keep it at 70° C. for 55 minutes. Then feed steam to allow the oak veneer to be treated for 60 minutes under high temperature and high humidity conditions of 75° C. and relative humidity of 98%, so that the deformed oak veneer of the tile is restored to straightness. Finally, the restored straight oak veneer was dried for 10 hours under the conditions of temperature 60° C. and relative humidity 45%, so as to obtain dry straight veneer.

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Abstract

The invention relates to the technical field of wood processing, in particular to a restoring method of a bent and raised veneer. The restoring method comprises the steps of heating, steaming and drying. Compared with the prior art, the restoring method adopts a process, which integrates restoration and straightening with secondary drying, to restore and dry the bent and raised veneer. A high-temperature and high-humidity method is adopted for eliminating the residual deformation inside the width-deformed veneer and drying the veneer which restores the straightness in the conditions of constant temperature and constant humidity. The restoring method has the advantages of short production period, simple process, low production cost, no wood color deepening, no waste water discharge, no environment pollution, strong practicality, and the like.

Description

technical field [0001] The invention relates to the technical field of wood processing, in particular to a method for reusing waste wood. Background technique [0002] Veneer is a surface decorative wood used to produce solid wood composite flooring and furniture. The veneer with a thickness of 2-5mm is usually obtained by sawing the dry board with a frame saw or a multi-blade saw. After the board is dried, there is residual stress inside the board. After the dried board is sawed into veneer by frame saw or multi-blade saw, the outermost two layers of veneer will be deformed due to the mutual restraint and release of each layer. The deformation of tiles brings inconvenience to the subsequent processing and utilization of veneer, and also seriously affects the quality of wood products. For the veneer with severe deformation of the tiles, it can't even be used, resulting in waste of wood and economic losses to the enterprise. [0003] Although there are literature reports o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K5/00
Inventor 涂登云倪月中潘成锋徐开蒙曹海波王明俊章昕
Owner ZHEJIANG SHIYOU TIMBER
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