Preparation method of bamboo-based composite board with bevel angles and mould used thereby

Abstract

The invention discloses a preparation method of a bamboo-based composite board which is used in the wind generator blade prepared from bamboo and has bevel angles separately and a mould used thereby, relating to a production method of a recombined lumber or laminated veneer lumber pavement layer, a mat structure and the like and a novel production mould. The preparation method comprises the following steps: processing bamboo according to a certain specifications and shape, and perform cutting, splitting, defibering and brooming or slicing, drying, gumming, assembling longitudinally, mould pressing and other processes to produce re-combined bamboo and laminated veneer lumber. The method provided by the invention is characterized in that the mould used in the mould pressing process has corresponding design angles so that during laying, bamboo fiber bundles and/or bamboo chips are arranged according to the angles of the mould to form oblique angles. By adopting the method in the invention, continuous production can be realized, the production cost is low and the production efficiency can be greatly increased.

Description

technical field [0001] The present invention relates to a method for manufacturing a composite plate and a mold for use, in particular to a laminate structure of a bamboo-based composite plate that uses bamboo as a raw material with bevel angles and is used for bamboo-made wind generator blades and its use. Mold, which is suitable for all productions of longer strips or plates formed by mitered joints. Background technique [0002] Bamboo-based composite materials have been widely produced and applied in the market, such as reconstituted bamboo boards and laminated wood boards. [0003] The production of recombined bamboo boards generally uses large-diameter bamboos such as moso bamboo as raw materials, and requires the use of whole bamboo with a diameter at breast height of 25cm or more. At present, the market demand for large-diameter bamboo is excessive, and the production cost is also increasing year by year. Resources are in short supply. . [0004] The current techno...

AI Technical Summary

Problems solved by technology

Generally, the length of bamboo is 7-8 meters after being made into a material. After removing the parts that do not meet the requirements of the head and tail materials, it can be cut into three sections of 2 meters of bamboo for board processing; if you want to use boards larger than 2 meters (or 2.5 meters) in the project , you need to splice the boards, so after making the recombined bamboo boards, use woodworking saws and other tools to cut the beveled angles according to the miter angle requirements, then a large part of the recombined bamboo boards will be wasted when cutting the miter joints , resulting in an increase in costs and a waste of resources

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