Treatment method for controlling heat expansion and cold contraction coefficient of wood

A processing method, a technology of thermal expansion and contraction, which is applied in the direction of wood heat treatment, wood treatment, wood treatment details, etc., can solve problems such as easy cracking and deformation, achieve enhanced stability, reduce the proportion of cracking and deformation, improve stability and stability. The effect of service life

Inactive Publication Date: 2019-09-17
黄新波
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the defect that wood furniture is easy to crack and deform under the action of thermal expansion and contraction in the prior art, and to provide a device and treatment method for controlling the coefficient of thermal expansion and contraction of wood

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  • Treatment method for controlling heat expansion and cold contraction coefficient of wood

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Embodiment

[0014] A method for processing the coefficient of thermal expansion and contraction of blood sandalwood wood includes the following steps:

[0015] S1. Stack the blood sandalwood woods according to the principle of first heavy and then light, thick first and then thin. Place 1cm×4cm spacers between adjacent blood sandalwood woods to form a reasonable gap between each blood sandalwood wood, which is convenient Uniform heating and air circulation;

[0016] S2. Put the stacked wood into a closed wood stabilization device. The temperature in the wood stabilization device is set to 200°C. It is heated by hot water steam circulation heating method. The temperature in the kiln is quickly raised by high temperature steam, and the temperature in the kiln is quickly sealed with high temperature steam. Live all parts of the wood, and then heat it to about 200℃ through the electric heating tube on the wall of the container, and use continuous high temperature and high pressure steam to kill al...

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Abstract

The invention discloses a treatment method for controlling a heat expansion and cold contraction coefficient of wood. The method comprises the following steps: S1, stacking the wood according to a principle of first heavy and then light, first thick and then thin, and placing spacers between adjacent woods; S2, putting the stacked wood into a closed wood stabilizing apparatus, wherein a temperature in the wood stabilizing apparatus is set to 190 DEG C-215 DEG C, and closing the whole circulatory system after keeping for about 2-3 h; S3, closing the whole circulatory system when a temperature and a water content in the wood stabilizing apparatus are kept standards and unchanged, naturally cooling the wood for 24 h to normal temperature in the stabilizing apparatus, and then opening the treated wood; and S4, putting the wood subjected to stabilizing treatment into a production line for waiting for production. The treatment method can reduce hydroxyl groups in the wood by 95%-99% or more, reduces the thermal expansion and cold contraction coefficient of the wood, and greatly improves stability and a service life of wood products.

Description

Technical field [0001] The invention relates to a device and a processing method for controlling the coefficient of thermal expansion and contraction of wood. Background technique [0002] Wood products are widely used in many fields such as daily life, building materials, and artworks. From the place of production to the process of processing, the internal porous structure of wood has always been changed, such as cell cavities, pores, fiber gaps and other large and small pores, and the special hydrophilic genes of wood make it easy for wood in environmental scenes. Affected by temperature and humidity, some internal structural forms are combined with external things, causing changes in pores, thereby changing the shape and performance of the wood's internal and external appearances. Accompanied by changes in temperature and humidity, the gaps between the gaps will expand unevenly. , It is easy to cause wood thermal expansion and contraction, surface cracking, deformation, warpi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/00
CPCB27K5/0085B27K2240/20
Inventor 黄新波
Owner 黄新波
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