Compressed and laminated wood, production method thereof and compressed and laminated wood
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A production method and glulam technology, applied in wood compression, wood processing equipment, other plywood/plywood equipment, etc., can solve the problems of high cost and complicated equipment, achieve increased density, improved strength, and save processing and cutting amount Effect
Inactive Publication Date: 2014-04-02
唐君畏 +3
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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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specific Embodiment 1
[0043] 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:
[0044] Step 1. Install an open die with a corresponding section, and taper is provided in the open die.
[0045] Step 2, billet formation: 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, which have a lot of resin and have poor bonding performance. The raw materials are preferably plantation fast-growing woods, such as eucalyptus, poplar and fir, etc.).
[0046] Step 3, softening with steam above 100°C for 30-60 minutes;
[0047] Step 4. Dip in a relatively low-viscosity phenolic resin with a solid content of 35% and a temperature of 60°C to 80°C for more than a few seconds.
[0048] Step...
specific Embodiment 2
[0055] 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 involved:
[0056] 1. Install the corresponding section mold;
[0057] 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;
[0058] 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.
[0059] The subsequent steps are the same as in Example 1.
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Abstract
The invention discloses compressed and laminated wood, a production method thereof and the compressed and laminated wood, and belongs to the technical field of laminated wood. The compressed and laminated wood is formed by using an adhesive to adhere a plurality of compressed wood materials; and before the wood materials are compressed, the mutual contact surface is a plane and / or an arc surface. The compressed and laminated wood and the production method have the advantages that since one-way pressure adopted by the traditional artificial board pressing machine is changed to four-surface pressure by molds and mutual extrusion of wood materials at the front part and the rear part, i.e., the materials are pressed from six surfaces, the stressing and the deformation of the materials are uniform, the arc-shaped surfaces among the wood materials or the bamboo materials are also easily deformed for mutual attachment, and the condition that the laminated wood needs smooth and clean planes for gluing can be avoided, so that the requirement on the materials is reduced; the wood materials with the diameter about several centimeters can be used by peeling, or bamboo pieces can be used by removing bamboo green and bamboo yellow, so that artificial forests about three years can be used; and the produced compressed and laminated wood is high in strength and good in stability and is applicable to houses, furniture, wood doors, floors and outdoor materials and the like with wood structures.
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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