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Sheet carbonizing method

A thin plate, carbonization technology, applied in the direction of burning charcoal/combustion, can solve the problems of poor heat treatment effect of veneer, reduced mechanical properties, easy cracking, etc.

Active Publication Date: 2015-07-22
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, including the following steps;

[0035] a) Drying process of the sheet; dry the sheet with 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 subsequent carbonization process, causing the sheet to crack after carbonization, and, During the drying process of the sheet, the moisture content begins to drop quickly, and when the moisture content drops below 20%, it is difficult to fall, it takes a long time and the cost is relatively high. Now many sheets require a moisture content of about 10% , The 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 and cost, and the heat treatment effect is very good;

[0036] b) The first rapid heating stage; put the dried sheet with 20-30% moisture content into the carbonization kiln, and heat up t...

Embodiment 2

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

[0043] a) Thin plate drying process; dry thin plates 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 subsequent carbonization process, causing the thin plates to be easily cracked after carbonization, and, During the drying process of the sheet, the moisture content begins to drop quickly, and when the moisture content drops below 20%, it is difficult to fall, it takes a long time and the cost is relatively high. Now many sheets require a moisture content of about 10% It takes a long time to perform heat treatment. The thin plate of the present invention uses a moisture content of 25-28%, which greatly reduces the time and cost, and the heat treatment effect is very good;

[0044] b) The first rapid heating stage; put the dried sheet with 25-28% moisture content into the carbonization kiln, and heat up to...

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PUM

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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 present invention relates to the technical field of wood improvement methods, and more specifically to a thin plate carbonization method. Background technique [0002] Thin board, also known as veneer, is generally 2-5mm thick, and is usually used for surface decoration of solid wood composite flooring and solid wood composite furniture. The existing ordinary thin plates have high moisture content and poor stability, and often have problems such as tile, deformation, and cracking during use. In order to solve this problem, carbonization technology is currently 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 the wood into slices after carbonization to obtain thin plates. However, the volume of the wood will be reduced after carbonization, and there will be saw roads during the cutting process, resulting in woo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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