Production method for carbonized wood finger-joint floor

A production method, carbonized wood technology, applied in wood treatment, charcoal burning/combustion, wood processing equipment, etc., can solve the problems of reduced pass rate of carbonized floor, prolonged heating process, increased production cost, etc., to reduce processing time and cost Low and energy-saving effect

Inactive Publication Date: 2013-08-21
RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, single-format floor blanks are often used in the production of solid wood flooring. In order to prevent wood cracking during the carbonization process of conventional single-format floor blanks, it is often necessary to control the heating rate and medium humidity to prolong the heating process of wood and increase production costs; Wood, or plantation wood with greater growth stress, tends to crack during the drying and carbonization process, resulting in a lower pass rate of carbonized floors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1. Saw rubber wood small-diameter timber and veneer material into small-sized sawn timber: the thickness is 2.5cm, the width is 7.5cm, and the length is greater than 30cm.

[0025] 2. Put the sawn timber stack into the vacuum treatment tank, use the sodium octaborate aqueous solution as the treatment liquid for vacuum pressure impregnation, and carry out insect and termite-proof treatment, so that the boron equivalent concentration in the sawn timber is 11kg / m 3 .

[0026] 3. After the anti-corrosion treatment, put the sawn timber stack into the carbonization equipment for high-temperature drying and carbonization:

[0027] a: Heat the wood to 100°C within 6 hours, control the temperature difference between dry and wet bulbs to be ≤3°C during the heating process, and fill the equipment with saturated steam.

[0028] b: After the temperature is raised to 100°C, the temperature is raised to 130°C within 25 hours to dry the wood at high temperature, so that the wood is cl...

Embodiment 2

[0035] 1. Saw the small-diameter timber and veneer of Acacia acacia into small-scale timber: thickness 2.0cm, width 5.5cm, and length greater than 20cm;

[0036] 2. Put the sawn timber stack into the vacuum treatment tank, use the sodium fluoroborate aqueous solution as the treatment liquid to vacuum pressurize and impregnate, and carry out insect and termite prevention treatment. The boron equivalent concentration in the standard material wood is 2kg / m 3 .

[0037] 3. After the anti-corrosion treatment, put the sawn timber stack into the carbonization equipment for high-temperature drying and carbonization:

[0038] a: Heat the wood to 100°C within 10 hours, control the temperature difference between dry and wet bulbs to be ≤3°C during the heating process, and fill the equipment with saturated steam.

[0039] b: After the temperature is raised to 100°C, the temperature is raised to 130°C within 30 hours to dry the wood at a high temperature, so that the wood is almost dry. ...

Embodiment 3

[0046] 1. Saw poplar small-diameter timber and veneer material into small-sized sawn timber: the thickness is 1.5cm, the width is 4.0cm, and the length is greater than 15cm.

[0047] 2. Put the sawn timber stack into the vacuum treatment tank, use sodium perborate aqueous solution as the treatment liquid for vacuum pressure impregnation, and carry out insect and termite-proof treatment, so that the boron equivalent concentration in the sawn timber is 23kg / m 3 .

[0048] 3. After the anti-corrosion treatment, put the sawn timber stack into the carbonization equipment for high-temperature drying and carbonization:

[0049] a: Heat the wood to 100°C within 4 hours, control the temperature difference between dry and wet bulbs to be ≤3°C during the heating process, and fill the equipment with saturated steam.

[0050] b: After the temperature is raised to 100°C, the temperature is raised to 130°C within 15 hours to dry the wood at a high temperature, so that the wood is almost dry...

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PUM

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Abstract

The invention relates to a production method for a carbonized wood finger-joint floor. Small-specification converted timbers are placed into a vacuum treating cylinder in a stacked mode, pressurization and impregnation are achieved to carry out insect prevention and termite prevention treatment, then the converted timbers are placed into carbonization equipment in a stacked mode, high-temperature drying and carbonization treatment are carried out, and the converted timbers are unloaded; then finger joint and width splicing are carried out on the converted timbers after life nourishing and moisture regaining, finger-joint floor blanks are obtained, mortise forming, painting, packaging are carried out on the finger-joint floor blanks, and then the finger-joint floor blanks are put into storage. According to the production method, a process of direct carbonization after the high-temperature drying is adopted, small-specification wood is converted into the floor blanks through the insect prevention, the carbonization and the finger joint, the drying and the carbonization are completed at a time, treating time is reduced, energy consumption is reduced, an obtained carbonization finger-joint floor combines two technologies, namely the carbonization and the finger joint, for improving stability of the wood, and meanwhile the appearance of tropic hard wood is given to fast growing wood; the floor has the advantages of being low in cost, good in stability of products, resistant to insects and termites and elegant in color, and has positive roles in improving the wood comprehensive utilization rate and popularizing wood carbonization techniques.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and relates to a floor production method, in particular to a production method of carbonized wood finger-jointed floor, which improves the utilization rate of wood modified by carbonization technology, and produces carbonized wood finger-jointed solid wood floor , has the characteristics of easy-to-obtain raw materials, stable floor size, insect-proof and termite-proof, and elegant colors. Background technique [0002] Carbonization of wood can improve dimensional stability and corrosion resistance, and can also give light-colored wood a dark brown appearance. The solid wood floor made of it is not easy to deform, and it is expected to be used for geothermal flooring (Gu Lianbai CN101069972). At present, single-format floor blanks are often used in the production of solid wood flooring. In order to prevent wood cracking during the carbonization process of conventional single-format floor ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27M1/08B27M1/06B27K5/04
Inventor 李家宁李晓文秦韶山李民周立军安锋谢贵水林位夫黄华孙马心
Owner RUBBER RES INST CHINESE ACADEMY OF TROPICAL AGRI SCI
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