Method for producing high-strength wood structure engineering material

A wooden structure and manufacturing method technology, applied in the direction of manufacturing tools, wood processing appliances, flat products, etc., can solve the problems of the influence of the bonding strength of the glued surface, difficulty in forming glue nails, insufficient penetration depth of the adhesive, etc., and achieve the effect of improving the strength

Inactive Publication Date: 2011-11-16
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of artificial forest wood to manufacture wooden structural engineering materials has the problem that the penetration depth of the adhesive is not enough after the glued panels or squares are glued. The development of wood structural engineering materials

Method used

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  • Method for producing high-strength wood structure engineering material
  • Method for producing high-strength wood structure engineering material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 1. Cut the small-diameter fast-growing wood into boards with a thickness of 30-50mm by a band saw, and then cut off and remove defects such as knots and decay in the boards by a hanging cut-off saw;

[0020] 2. Send the defect-removed board into a drying kiln to dry to a moisture content of about 10%, and then balance it in an indoor environment for 1 week.

[0021] 3. Send the dried board to the double-sided planer for surface processing, improve the flatness and smoothness of the board surface, and perform thickness-setting treatment on the board, and then lengthen the short material by finger-joining.

[0022] 4. Send the plate after the thickness setting treatment to the flexible laser punching machine, and punch holes on the upper and lower surfaces of the plate. The laser power is 500w, the feeding speed is 10mm / s, and micropores with a diameter of about 0.01-0.03mm and a depth of 0.05-2mm are obtained.

[0023] 5. Adjust the resorcinol adhesive to a concentratio...

Embodiment 2

[0027] 1. Cut the small-diameter fast-growing wood into squares with a thickness of 51-100mm by a band saw, and then cut off and remove defects such as knots and decay in the board by a hanging cut-off saw;

[0028] 2. Send the defect-removed squares into the drying kiln to dry to a moisture content of about 10%, and then balance in the indoor environment for 1 week.

[0029] 3. The surface of the dried square is processed by double-sided planing to improve the flatness and smoothness of the surface of the plank, and the thickness of the square is fixed, and then the short is lengthened by finger jointing.

[0030] 4. Send the thickness-fixed square material into the flexible laser punching machine, and punch holes on the upper and lower surfaces of the square material. The laser power is 1000w, the feeding speed is 5mm / s, and the micropores with a diameter of about 0.04-0.06mm and a depth of 0.1-4mm are obtained.

[0031] 5. Adjust the concentration of resorcinol adhesive to...

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Abstract

The invention discloses a method for producing a high-strength wood structure engineering material. The method is characterized by comprising the following steps of: before gluing split boards or squared timbers, carrying out laser punching treatment on the gluing surface of the boards or squared timbers; punching micro holes in a certain depth and a certain diameter on the gluing surface of the boards or squared timbers; and then gluing, assembling blanks and cold press forming. After forming, effective glue nails are formed on the gluing interfaces of the boards or squared timbers, so that the aim of enhancing the strength of the wood structure engineering material is achieved. According to the method disclosed by the invention, the effective glue nails are formed on the gluing interface, so that the strength of the wood structure engineering material can be remarkably improved.

Description

technical field [0001] The invention belongs to the field of manufacturing wooden engineering materials, and in particular relates to a method for manufacturing high-strength wooden structural engineering materials. Background technique [0002] my country ranks first in the world in planted forest area and tree stock volume, and its planted forest timber resources are very rich. It is an effective way to increase the added value of my country's plantation timber resources by sawing, splitting, drying, planing, sizing, and then reassembling and gluing small-diameter plantation timber to prepare structural engineering timber. At present, the use of artificial forest wood to manufacture wooden structural engineering materials has the problem that the penetration depth of the adhesive is not enough after the glued panels or squares are glued. The development of wood structural engineering materials. Contents of the invention [0003] The invention aims to provide a processi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/12B27C3/00
Inventor 李新功郑霞李辉陈卫民凌启飞
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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