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Flame-retardant solid wood composite section and manufacturing method thereof

A composite profile and manufacturing method technology, applied in the manufacture of veneer, impregnated wood, manufacturing tools, etc., can solve the problems of poor dimensional stability of flame-retardant profiles, inability to resist decay, service life, and easy occurrence of mildew and blue. The effect of high dimensional stability, low production cost and strong corrosion resistance and weather resistance

Inactive Publication Date: 2011-11-23
东莞市华富立装饰建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production process of this method is complicated, the production cost is high, and the flame-retardant profiles obtained have poor dimensional stability, or are prone to mildew and blue stains, or are not resistant to decay and have short service life.

Method used

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  • Flame-retardant solid wood composite section and manufacturing method thereof
  • Flame-retardant solid wood composite section and manufacturing method thereof
  • Flame-retardant solid wood composite section and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] (1) Wood chip production steps: select masson pine sawn timber and cut into 5.5mm thick masson pine wood chips by a frame saw.

[0046] (2) The first stacking drying step: stack 5 pieces of 5.5mm thick masson pine wood pieces together into a stack, using uniform pallets and aluminum alloy spacers, and the distance between the spacers and the end surface of the veneer during stacking is within 5cm , The spacing of the partitions is 20cm, the partitions are neatly aligned in a straight line, and the cement blocks are pressed on the stacked veneers, and placed in the air drying shed for air drying first (day and night average temperature 25.3 ℃, day and night average Wind speed 2.1m / s, September), when the moisture content of the wood chips is reduced to about 25%, then move to the drying kiln for kiln drying, so that the moisture content of the veneer is 10%. Air drying and kiln drying are used The combined drying process is shown in Table 1.

[0047] Table 1 Air-drying and k...

Embodiment 2

[0059] (1) Wood chip production steps: select poplar sawn timber and saw it into 4.5mm thick poplar wood chips with a multi-saw blade.

[0060] (2) The first stacking and drying step: stack 2 4.5mm thick poplar wood chips together into a whole stack, using uniform pallets and aluminum alloy spacers, and the spacers are 5cm away from the veneer end faces when stacking Within 10cm, the spacers are neatly arranged in a straight line in a straight direction, and cement blocks are pressed on the pile of stacked wood chips, and the poplar wood chips are dried by the kiln drying process to make the poplar wood chips moisture content Reduce to 15%.

[0061] (3) Heat treatment improvement steps: send the dried wood chip pile directly into the heat treatment kiln with a forklift, close the heat treatment kiln door, open the heating and humidification valve at the same time, quickly heat and humidify directly to 210 ℃ for heat treatment improvement of the veneer for 2h. Note that when the we...

Embodiment 3

[0070] (1) Wood chip production steps: select poplar sawn timber and plan it into 1.2mm thick poplar wood chips by a planer.

[0071] (2) The first stacking drying step: stack 5 1.2mm thick poplar wood chips together into a whole stack, using uniform pallets and aluminum alloy spacers, and the spacers are 5cm away from the veneer end face when stacking Within 10cm, the spacers are neatly arranged in a straight line in a straight direction, and cement blocks are pressed on the pile of stacked wood chips, and the poplar wood chips are dried by the kiln drying process to make the poplar wood chips moisture content Reduce to 15%.

[0072] (3) Heat treatment improvement steps: send the dried wood chip pile directly into the heat treatment kiln with a forklift, close the heat treatment kiln door, open the heating and humidification valve at the same time, quickly heat and humidify directly to 190℃ to heat the veneer for 3 hours. Note that when the wet bulb temperature is less than 100°C...

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Abstract

The invention relates to a method for improving functionality of wood, in particular to a flame-retardant solid wood composite section improved through processes of wood heat treatment and flame retardant treatment and a manufacturing method thereof, belonging to the technical fields of wood functionality improvement and wood processing. The manufacturing method of the flame-retardant solid wood composite section comprises the steps of: (1) wood chip manufacturing; (2) first stacking and drying; (3) heat treatment improvement; (4) normal-pressure impregnation flame retardant treatment on wood chips; (5) second stacking and drying; and (6) gluing and fixing. By means of the method, the advantages of the wood subjected to the carbonization heat treatment and the flame retardant treatment are combined together and the respective disadvantages are overcome to ensure that the obtained solid wood composite section has the advantages of high dimensional stability, strong decay and weather resistance, good flame retardant effect because of a uniformly permeated flame retardant, simple production facility, low production cost and high wood outturn percentage. The obtained solid wood composite section is a good material applied to indoor structure beams, furniture and flame retardant wood doors.

Description

Technical field [0001] The invention relates to a wood functional improvement method, in particular to a flame-retardant solid wood composite profile improved by wood heat treatment and flame-retardant treatment processes and a manufacturing method thereof, belonging to the technical field of wood functional improvement and wood processing. Background technique [0002] As a renewable resource, people pay more and more attention to wood, but the anisotropy of wood itself makes wood prone to warping, cracking, deformation, perishable, mildew, and short service life, especially for fast-growing wood. , These wood defects are more serious, thus limiting the way to use wood. Therefore, in order to improve the dimensional stability of wood and extend the service life of wood, people have carried out many scientific research activities on the improvement of wood functionality. [0003] Chinese patent document CN1868704A discloses a technical patent of "a wood carbonization treatment met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08B27K3/02B27K3/16B27K3/34B27L5/00B32B21/13B32B21/14
Inventor 朱林潘平刘锡丽
Owner 东莞市华富立装饰建材有限公司
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