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Compressed glulam and production method of compressed glulam

A production method and technology for glulam, applied in wood compression, wood processing appliances, manufacturing tools, etc., can solve problems such as high cost and complex equipment, and achieve the effect of increasing density, increasing strength, and eliminating the need for processing and cutting

Inactive Publication Date: 2016-03-30
唐君畏 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-frequency heating: mainly for processing compressed wood with a large size, the equipment is complex and the cost is high

Method used

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  • Compressed glulam and production method of compressed glulam

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Experimental program
Comparison scheme
Effect test

specific Embodiment 1

[0042] To produce a square compressed glulam with a length of 2 meters and a section of 15 centimeters, the following method steps can be used:

[0043] Step 1. Install an open die with a corresponding section, and taper is provided in the open die.

[0044] Step 2, billet assembly: Determine the average density of the product to be 0.7 g / cubic centimeter, weigh the corresponding amount, skinless, relatively straight, small-diameter wood with a diameter of about 4 cm, a length of 2 meters, and a moisture content of 20%. It is best to use tree species with similar densities, with a lot of resin, and those with poor bonding performance cannot be used. The raw materials are preferably plantation fast-growing woods, such as eucalyptus, poplar and fir, etc.), and the big and small heads are placed alternately and bundled well.

[0045] Step 3, softening with steam above 100°C for 30-60 minutes;

[0046] Step 4. Dip in a relatively low-viscosity phenolic resin with a solid content ...

specific Embodiment 2

[0053] To produce a compressed glulam bamboo square with a length of 2 meters and a section size of 15 cm x 13 cm, the following steps are included:

[0054] 1. Install the corresponding section mold;

[0055] 2. Preparation: Cut the 2-meter-long moso bamboo section into 4 pieces, remove the inner and outer sections, flatten, and remove the green bamboo yellow (the thickness does not need to be determined, the thickness can be different within the same piece or between bamboo pieces), and air-dried to a moisture content of 25 %about;

[0056] 3. Blank assembly: the density after compression and integration is 0.8g / cm 3 , Weigh the corresponding amount of bamboo slices: place layers evenly, alternate sizes, and the section size after binding is 2-3cm larger than the size after compression.

[0057] The subsequent steps are the same as in Example 1.

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Abstract

Compressed laminated wood is formed of several compressed wood materials (1) glued together by means of an adhesive (2). Prior to compression, mutual contact faces of the wood materials are flat and / or curved. A method of manufacturing the compressed laminated timber comprises the processes of assembly, compression and shaping. The six sides of the wood materials are subjected to pressure, the pressure is uniform, and the curved faces between the materials are also easily deformed and adhered, reducing the demands on the original material. The compressed laminated timber is strong, has good stability, and is suitable for houses and furniture of wooden structure, and materials for use outdoors, etc.

Description

technical field [0001] The invention relates to a product and method which are integrated by compressing and gluing wood materials. Background technique [0002] Glulam is solid wood planks and slats with parallel wood grains, which are lengthened in length and widened in width, and glued together to form wooden structural plates or squares of a certain shape and size, also known as glued wood or knuckle wood. Glulam maintains the natural texture of wood and has good strength and dimensional stability. It is a new type of functional structural wood material and has been widely used in construction, interior decoration, flooring, furniture and various wood products. Since glued lumber is made of small boards or small squares glued and spliced ​​in the three-dimensional direction of length, width and thickness, it is a good way to use small lumber and make rational use of wood resources. The disadvantage is that the glulam production process is complex, requiring multiple saw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27M1/02
CPCB27M1/02B27M3/0026
Inventor 唐君畏唐天宁唐君忌黄建华
Owner 唐君畏
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