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Plank surface carbonization treatment technology

A treatment process and surface carbonization technology, which is applied in the field of wood processing, can solve the problems that are rarely seen, the crack resistance affects the use value, crack resistance, and bending resistance decline, and achieves shortened treatment time, reduced adverse effects, and good promotion. value effect

Inactive Publication Date: 2017-01-04
安徽三和工艺品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although carbonized wood has many of the above advantages, the crack resistance and bending resistance of wood after carbonization will generally decrease. For thinner boards, most of them will not be used for support, load bearing, etc. The impact is negligible, but it is mostly used for decoration, surface making, etc., and its crack resistance will seriously affect its use value. At present, there are few studies on the impact of carbonization on the surface of thinner plates on plates, and it is rare to focus on improving. Treatment process for crack resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A carbonization treatment process for the surface of a wood board includes the following steps:

[0027] (1) Board cutting:

[0028] Cut the wood board to be processed according to the requirements of the processing design, and then rinse the wood chips and other impurities with water for use;

[0029] (2) Wood board pre-drying treatment:

[0030] Put the wood board treated in step (1) into a drying kiln, and dry its water content to 14-16% before use;

[0031] (3) Secondary drying treatment:

[0032] Continue to dry the wood board treated in step (2). At this time, keep the temperature in the drying kiln at 105°C, and apply ultrasonic waves with a frequency of 49KHz to the wood board for the first time until the water content of the wood board is dried to 6 ~8%, then increase the temperature in the drying kiln to 140℃, and apply ultrasonic waves with a frequency of 55KHz to the wood for the second time until the water content of the wood is dried to 3~4% for use;

[0033] (4) Car...

Embodiment 2

[0044] A carbonization treatment process for the surface of a wood board includes the following steps:

[0045] (1) Board cutting:

[0046] Cut the wood board to be processed according to the requirements of the processing design, and then rinse the wood chips and other impurities with water for use;

[0047] (2) Wood board pre-drying treatment:

[0048] Put the wood board treated in step (1) into a drying kiln, and dry its water content to 15-16% before use;

[0049] (3) Secondary drying treatment:

[0050] Continue to dry the wood board after step (2). At this time, keep the temperature in the drying kiln at 110°C, and apply ultrasonic waves with a frequency of 50KHz to the wood board for the first time until the water content of the wood board is dried to 7 ~8%, then increase the temperature in the drying kiln to 145℃, and apply ultrasonic waves with a frequency of 58KHz to the wood for the second time until the water content of the wood is dried to 3~4% for use;

[0051] (4) Carboniz...

experiment example 1

[0068] In order to compare the effects of the present invention, the same batch of jujube boards with a thickness of 12mm were selected, cut into the same specifications, and randomly divided into five groups, and the above five methods were used for processing respectively. The following table is the corresponding comparison data:

[0069] Cracking rate during drying (%) Cracking rate during carbonization (%) Total processing time (h) Decrease rate of crack resistance of finished product compared with original board (%) Example 12.51.9217.6 Example 22.42.0207.4 Comparative Example 14.92.42621.5 Comparative Example 23.52.22311.6 Control group 5.12.62837.8

[0070] It can be seen from the above table that the treatment process of the present invention can very well enhance the crack resistance of the wood board, at the same time it can also increase the yield, shorten the production time, and has good promotion value.

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Abstract

The invention discloses a plank surface carbonization treatment technology and belongs to the field of wood processing. The technology specifically comprises the steps of 1, plank cutting; 2, plank pre-drying; 3, secondary drying; 4, carbonization; 5, thermal refining. The steps are reasonably matched, cracking of wood during processing can be avoided, and a finished product obtained after processing has high anti-cracking property which is lower than that of conventional planks by only 8% or less, while the anti-cracking property is reduced by 40% or so when a traditional treatment method is adopted. Furthermore, according to the technology, treatment duration is shortened by 30-35%, efficiency is higher, and therefore popularization value is high.

Description

Technical field [0001] The invention belongs to the field of wood processing, and particularly relates to a carbonization treatment process on the surface of a wooden board. Background technique [0002] Carbonized wood refers to wood obtained after homogenous carbonization treatment of wood in a high temperature environment. In addition to the beautiful surface, the carbonized wood also has the advantages of anti-corrosion, anti-biological attack and high temperature resistance, and because of its moisture content Low, not easy to absorb water, stable material, no deformation, completely degreasing and no fat spill, good heat insulation performance, no special smell, etc. It is an ideal furniture and indoor and outdoor decoration materials. [0003] The carbonization of wood can be divided into surface carbonization and deep carbonization. As the name implies, the depth of surface carbonization treatment is shallow, and it is generally used for thinner boards or wood treatment wit...

Claims

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Application Information

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IPC IPC(8): B27M1/06B27M1/08
CPCB27M1/06B27M1/08
Inventor 徐治合徐蓝天徐艳云
Owner 安徽三和工艺品有限公司
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