Carbonizing method for thin wood board

A wood and veneer technology, which is applied in wood treatment, wood heating, wood processing equipment, etc., can solve the problems of decreased comprehensive mechanical properties, large internal stress of veneer wood, and large loss of wood, so as to speed up the conduction of temperature and prevent stress residue and deformation, the effect of stress relief

Active Publication Date: 2016-12-07
阜南县永盛工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most people are used to calling the wood boards with a thickness of no more than 8mm thin boards. There are usually two ways to carbonize this kind of wood. One is to cut thicker wood into pieces after carbonization to ensure that its thickness is no more than 8mm, and then get Thin boards, however, due to the shrinkage of the wood after carbonization, and the generation of saw roads during the cutting process, the loss of wood is large, and there is internal stress in the wood carbonization process, and the skin is easily deformed during cutting; another The second is veneer carbonization, which is to directly perform high-temperature carbonization on a thin plate with a thickness of no more than 8mm. However, due to the small thickness of the thin plate, it is easy to cause deformation, warping and other deformation of the thin plate during drying and high-temperature carbonization. There are problems such as large internal stress, easy cracking, and serious decline in comprehensive mechanical properties. At present, there is no good carbonization process for this kind of thin-plate wood.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A carbonization method for veneer wood, comprising the steps of:

[0021] (1) Material selection: select wooden boards with neutral density and thickness not greater than 8mm for use;

[0022] (2) Drying treatment: put the wooden board obtained in step (1) into a closed box, control the temperature in the closed box to 52°C, and the vacuum degree to 0.080MPa, and take it out for later use when the water content of the wooden board is not greater than 18%;

[0023] (3) Carbonization treatment: Put the wooden boards treated in step (2) into a carbonization kiln for carbonization treatment. The period is divided into three stages: pre-heating, mid-term heating and post-heating:

[0024] a. Heating in the early stage: firstly preheat the carbonization kiln to 53°C, then move the wood board after step (2) drying into the carbonization kiln, then raise the temperature inside the kiln to 108°C at a speed of 73°C / h, and then Maintain this temperature for 45 minutes, during wh...

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PUM

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Abstract

The invention discloses a carbonizing method for a thin wood board. The method comprises the following steps of (1) material selection, (2) drying treatment, (3) carbonizing treatment and (4) cooling treatment. The thin wood board manufactured through the method is good in stability and uniform in color and luster, the thickness of an effective carbonized layer is increased by 1 to 1.5 times, the properties such as crack resistance, bending resistance, impact toughness and nail-holding capacity of the thin wood board are greatly improved, and the using value is high.

Description

technical field [0001] The invention belongs to the technical field of wood carbonization, and in particular relates to a carbonization method of veneer wood. Background technique [0002] Wood is one of the essential substances in people's life. In order to enhance the performance of wood, it is sometimes necessary to carbonize wood. After the wood is carbonized at high temperature, it not only makes the surface more beautiful, but also has the advantages of anti-corrosion, anti-biological attack, anti-deformation and cracking, and high temperature resistance. It also has the advantages of low moisture content, not easy to absorb water, stable material, and no deformation. , complete degreasing without grease, good heat insulation performance, no special smell and so on. [0003] Most people are used to calling a board with a thickness of no more than 8mm a thin board. There are usually two ways to carbonize this kind of wood. One is to carbonize a thicker wood and cut it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M1/06B27K5/00
CPCB27K5/001B27K5/003B27M1/06
Inventor 马魁潘光灿马之广马军
Owner 阜南县永盛工艺品有限公司
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