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Sheet carbonizing method

A thin plate and carbonization technology, which is applied in the direction of charcoal burning/combustion, can solve the problems of poor heat treatment effect, reduced mechanical properties, and easy cracking of wood veneer, and achieve good heat treatment effect, low loss of mechanical properties, and not easy to crack.

Active Publication Date: 2013-03-27
ZHEJIANG SHIYOU TIMBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the implementation method disclosed in this patent, the heat treatment effect of veneer is poor, the mechanical properties are seriously reduced, and it is easy to crack and deform.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, a thin plate carbonization method, comprises the following steps;

[0035] a) Thin plate drying process; dry the thin plate with a thickness of 1.2-6.2mm to a moisture content of 20-30%; if the moisture content is too low or too high, it will directly affect the following carbonization process, causing the thin plate to crack easily after carbonization, and, During the drying process of the sheet, the moisture content drops rapidly at the beginning, but when the moisture content drops below 20%, it is difficult to drop, it takes a long time, and the cost is relatively high. Now many sheets require a moisture content of about 10%. , heat treatment can be carried out, and it takes a long time. The thin plate of the present invention adopts a moisture content of 20-30%, which greatly reduces the time spent, the cost is greatly reduced, and the heat treatment effect is very good;

[0036] b) The first rapid temperature rise stage: put the thin plate with a moi...

Embodiment 2

[0042] Embodiment 2, a thin plate carbonization method, comprises the following steps;

[0043] a) Thin plate drying process; dry the thin plate with a thickness of 1.2-6.2mm to a moisture content of 25-28%; if the moisture content is too low or too high, it will directly affect the following carbonization process, causing the thin plate to crack easily after carbonization, and, During the drying process of the sheet, the moisture content drops rapidly at the beginning, but when the moisture content drops below 20%, it is difficult to drop, it takes a long time and the cost is relatively high. Now many sheets require a moisture content of about 10%. , to carry out heat treatment, it takes a long time, the thin plate of the present invention adopts a moisture content of 25-28%, the time spent is greatly reduced, the cost is greatly reduced, and the heat treatment effect is very good;

[0044] b) The first rapid heating stage: put the dried sheet with a moisture content of 25-28...

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Abstract

The invention discloses a sheet carbonizing method, comprising the following steps of: a) a sheet drying process; b) a first rapid heating stage; c) a first heat preservation stage; d) a humidification and heat preservation stage; e) a second rapid heating stage; f) a second heat preservation stage; and g) a rapid cooling stage; reducing the temperature inside a carbonizing kiln to 130-140 DEG C, then naturally cooling to 40 DEG C or less, and drawing. The sheet carbonizing method disclosed by the invention is high in production efficiency, good in thermal treatment effect, excellent in stability, and even in wood color; the loss of the mechanical property of the sheet in the carbonizing process can be reduced to the minimal degree; and the sheet does not easily crack or deform.

Description

technical field [0001] The invention relates to the technical field of a wood improvement method, in particular to a thin plate carbonization method. Background technique [0002] The veneer, also known as veneer, generally has a thickness of 2-5mm, and is usually used for surface decoration of solid wood composite flooring and solid wood composite furniture. The existing ordinary sheet has high moisture content and poor stability, and problems such as tiles, deformation, and cracking often occur during use. In order to solve this problem, carbonization technology is often used in the market to improve the dimensional stability of veneer. The existing veneer carbonization technology has the following two implementation methods: [0003] Wood carbonization is to cut wood into pieces after carbonization to obtain thin plates. However, due to the phenomenon of shrinkage of wood after carbonization, and the generation of saw roads during the cutting process, wood loss is caused...

Claims

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Application Information

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IPC IPC(8): B27M1/06
Inventor 涂登云于学利劳奕旻杨莎莎朱月虎王明俊郑峰峰杜春烨
Owner ZHEJIANG SHIYOU TIMBER
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