Technology for manufacturing structural glued laminated timber by adopting fast-growing poplars

A kind of technology, poplar wood technology, which is applied in the field of fast-growing poplar wood manufacturing structural glulam, which can solve the problems of water resistance, poor corrosion resistance, and UV radiation resistance, etc., and achieve good flame retardancy and corrosion resistance.

Active Publication Date: 2015-02-18
江苏德鲁尼木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a process for manufacturing structural glulam from fast-growing poplar, which solves the technical problems of poor water resistance, poor corrosion resistance, and inability to ultraviolet light irradiation in the board produced by the existing fast-growing poplar

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A process for manufacturing structural glulam from fast-growing poplar, the steps of which are:

[0024] The first step: select the wood and cut it into boards with a chainsaw, the round logs are sawed by a sports car, and the boards are peeled by a rotary cutter;

[0025] Step 2: Coat the cut board with a 0.8mm transparent water-based primer layer and a 0.6mm fireproof coating layer, and control the moisture content of the board at 6-7% by fumigation, and the fumigation temperature is 100°C;

[0026] Step 3: Plan the fumigated board on both sides through double-sided planing, planing or plane planing, and then cut the planed board into strips with multi-blade saws after planing, and screen out no cracks and scars. There is also no lack of wood strips coated with a 0.6mm UV-curable varnish layer and a 0.5mm water-based bright topcoat layer;

[0027] Step 4: Splicing the above-mentioned wood strips with an adhesive, forming a billet, and sending it to the platen of a ho...

Embodiment 2

[0030] A process for manufacturing structural glulam from fast-growing poplar, the steps of which are:

[0031] The first step: select the wood and cut it into boards with a chainsaw, the round logs are sawed by a sports car, and the boards are peeled by a rotary cutter;

[0032] Step 2: Coat the cut board with a 0.2mm transparent water-based primer layer and a 0.2mm fireproof coating layer, and control the moisture content of the board at 5% by fumigation, and the fumigation temperature is 90°C;

[0033] Step 3: Plan the fumigated board on both sides through double-sided planing, planing or plane planing, and then cut the planed board into strips with multi-blade saws after planing, and screen out no cracks and scars. There is also no lack of wood strips coated with a 0.15mm water-based bright topcoat;

[0034] Step 4: Splicing the above wooden strips with an adhesive, forming a billet, and sending it to the platen of a hot press. The hot pressing temperature is 135°C, the p...

Embodiment 3

[0037] A process for manufacturing structural glulam from fast-growing poplar, the steps of which are:

[0038] The first step: select the wood and cut it into boards with a chainsaw, the round logs are sawed by a sports car, and the boards are peeled by a rotary cutter;

[0039] Step 2: Coat the cut board with a 0.8mm transparent water-based primer layer and a 0.6mm fireproof coating layer, and control the moisture content of the board at 8% by fumigation, and the fumigation temperature is 110°C;

[0040] Step 3: Plan the fumigated board on both sides through double-sided planing, planing or plane planing, and then cut the planed board into strips with multi-blade saws after planing, and screen out no cracks and scars. There is also no lack of wood strips coated with a 0.6mm UV-curable varnish layer;

[0041] Step 4: Splicing the above wooden strips with an adhesive to form a billet, and sending it to the platen of a hot press, the hot pressing temperature is 160°C, the pres...

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PUM

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Abstract

The invention provides a technology for manufacturing a structural glued laminated timber by adopting fast-growing poplars. The steps are as follows: firstly, selecting timber and cutting the timber into plates through an electric saw; secondly, coating a transparent water-based prime paint layer and a fire-retardant paint layer on the cut plates, and controlling the water content of the plates to range from 5% to 8% through fumigating; thirdly, planing the fumigated plates, and coating a ultraviolet light polymerization coating varnish layer and a water-based bright surface paint layer on the planed plates in sequence; fourthly, splicing the timber to form an assembly, and sending the assembly into a hot press to press the plates; fifthly, scissoring the pressed plates by using a cutting edge machine, mending, trimming and packing the plates, and then putting the plates into a warehouse. According to the invention, products have excellent corrosion resistance, snow and rain corrosion resistance, and water and oil resistance; the elastic modulus is 10000-12000 GPa, the bending strength reaches 12 MPa, the gloss is larger than or equal to 89, products have no yellow stains under the 100-110 DEG C / 1h condition, the inflaming retarding effect is excellent, and self-extinguish can be performed within 8 s; products are subjected to hard solidification under the irradiation of a high pressure mercury lamp of 500 W for 4-5 min, are ultraviolet light irradiation resistant, can be used widely, and can replace the conventional materials continuously.

Description

technical field [0001] The invention relates to the technical field of plate production, in particular to a process for manufacturing structural laminated wood from fast-growing poplar. Background technique [0002] With the development of social urbanization, technology, and humanization, home design is more and more valued by consumers, followed by the wide application of home materials. Glulam retains the texture of natural wood and has a beautiful appearance. It is superior to solid wood in terms of physical and mechanical properties such as tensile and compressive properties and material quality uniformity, and can be configured according to the strength of the laminate to improve its strength performance. The test shows that its strength performance is 1.5 times that of solid wood, so Glulam has attracted more and more attention from consumers. [0003] Glulam does not change the structure and characteristics of wood, it is still a natural substrate like wood, but fro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/08
Inventor 那斌吴建国卢晓宁吴彬王志强韩书广王海芹
Owner 江苏德鲁尼木业有限公司
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