Soaking compression restructuring artificial board and method for producing same

A manufacturing method and technology of wood-based panels, which are applied in the direction of impregnating wood, manufacturing tools, and wood impregnation, etc., can solve the problems of application limitations, low degree of resin polycondensation, and difficulty in ensuring that the formaldehyde emission of the board is at a safe level, and achieve raw material utilization. High, the effect of abundant raw material sources

Active Publication Date: 2013-04-10
NANJING FORESTRY UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method maintains the mechanical properties of the wood itself to a certain extent, but the material selection of the material is relatively strict. Generally, large-diameter high-quality broad-leaved wood or coniferous wood with better materials is required. Even so, it still needs to be removed before production. Defects such as knots cannot be fully utilized for fast-growing timber, especially small-diameter timber with many knots such as poplar, fir, and pine
The glulam obtained by this type of patent has not been treated with mildew, anti-corrosion, insect-proof and flame-retardant treatment, and its application in wooden

Method used

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  • Soaking compression restructuring artificial board and method for producing same
  • Soaking compression restructuring artificial board and method for producing same
  • Soaking compression restructuring artificial board and method for producing same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Take small-diameter fast-growing Chinese fir with a diameter of 9-20 cm, cut it to the corresponding length according to the bending state of the wood, and use the regular hexagonal sawing method to saw it into a board with a thickness of 10.5 cm (the yield can reach more than 65%), see Figure 12 , image 3 , dried to a moisture content of about 12%, planed to a thickness of 10cm, take the same cross-sectional size and shape of the board longitudinally finger-jointed into a 3m-long board (the length of the finger-joint can be determined according to the needs of the user, the same below), and the length of the tenon is 20mm , the finger joint adhesive is resorcinol formaldehyde resin, and the glue amount is 150g / m 2 ;The same size and shape of the end face have beveled boards to be combined in width, which is basically a combination of string-sawn boards and string-sawn boards, and quarter-sawn boards and quarter-sawn boards. The width of the boards is 1m (the width o...

Embodiment 2

[0060] Take the fast-growing poplar wood with a diameter of 20cm or more, cut it to the corresponding length according to the bending state of the wood, and use the regular octagonal sawing method to saw it into a board with a thickness of 6.5cm (the yield rate can reach more than 70%), see Figure 4 , dried to a moisture content of about 8%, planed to a thickness of 6cm, take the same cross-sectional size and shape of the board longitudinally finger-joined into a 3m-long board, the length of the finger tenon is 20mm, and the finger-joint adhesive is phenol-modified resorcinol formaldehyde Resin, glue amount is 150g / m 2 ; The boards with beveled edges on the end face and the plates without beveled edges are assembled in width respectively, the width of the panels is 1m, the adhesive is phenol-modified resorcinol formaldehyde resin, and the amount of glue applied is 150g / m 2 , the length and width are assembled in the jigsaw machine, the cold pressing time is 60 minutes, and i...

Embodiment 3

[0069] Take moso bamboo with a diameter of 12-18cm, cut it to the corresponding length according to the diameter change, divide it into 5.5cm wide, plasticize, flatten, dry to about 10% moisture content, planed to set the width to 5cm, and set the thickness to 1cm sheet. Finger-join the plates of different lengths longitudinally into 3m-long plates, the length of the finger tenon is 20mm, the finger joint adhesive is resorcinol formaldehyde resin, and the glue amount is 160g / m 2 ;The width of the horizontal panel is 1.2m, the adhesive is resorcinol formaldehyde resin, and the amount of glue is 150g / m 2 , the length and width are assembled in the jigsaw machine, the cold pressing time is 60 minutes, and it can be used in the next process after 24 hours. spelling method see Figure 8 (There are vertical teeth 17 on the end face of the plate) or Figure 9 (There are horizontal teeth 18 on the end face of the plate), see Figure 7 (Straight edge fight).

[0070] Put the forma...

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Abstract

The invention provides a method for producing a high-performance structure artificial board which is produced through utilizing fast-growing small dimension wood or bamboo wood raw materials. The method comprises the steps that the fast-growing wood is sawn into boards to be subjected to dry fixed thickness dressing treatment or the bamboo wood is longitudinally split to be subjected to plasticizing flatten dry fixed thickness dressing treatment, and an adhesive is used to form a fast-growing large board through splicing; the board is soaked in phenolic resin or melamine-formaldehyde resin; the soaked large board is dried until the resin content is 50-80% to obtain a blank; or the soaked large board is dried until the resin is completely solidified and is then coated with the adhesive to obtain the blank; the blank is laminated and assembled to obtain a blank body; and the blank body is subjected to cold pressing or hot pressing to obtain the structure artificial board. The produced artificial board does not need mould proof, anticorrosion, insect prevention and flame retardant treatment, is stable in dimension, can be used as building wood beams, wooden pillars, stairs, cement moldboards, compartments and container bottom boards, decoration materials, furniture materials and the like, and is particularly suitable for outdoor occasions.

Description

technical field [0001] The present invention relates to a new impregnated compression recombined structure wood-based panel and its manufacturing method, in particular to a recombined structure wood-based panel with high strength, high dimensional stability and high weather resistance and its manufacturing method. , anti-corrosion, insect-proof and flame-retardant treatment. It belongs to the field of wood-based panel manufacturing. Background technique [0002] The wood-based panel industry has maintained a high-speed development trend due to the renewable nature of wood resources, the designability of structure and performance, and the physical and mechanical properties are mostly superior to natural wood. It is an indispensable part of national economic development. It is widely used in furniture manufacturing, packaging, indoor and outdoor decoration and other fields. However, with the rapid development of wood structure buildings and outdoor furniture, higher requireme...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D1/08B27D1/10B27K3/34B32B21/13B32B37/08B32B37/10B32B37/06B32B37/12
Inventor 韩书广崔举庆周兆兵金菊婉卢晓宁庄寿增曹平祥
Owner NANJING FORESTRY UNIV
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