Method for processing plate with expanded bamboo as raw material

Abstract

The invention provides a method for processing a plate with expanded bamboo as a raw material, and belongs to the technical field of bamboo processing. The method comprises the steps that taking a bamboo tube with bamboo knots being retained as a base material, after expansion, the bamboo knot parts are removed for standby application; positioning bulges and positioning grooves are formed in one side of the bamboo inner skin of the plate with the bamboo knots being removed; the plate of a two-layer structure is formed in overlapped and spliced modes; and after being expanded, the bamboo knot parts form reinforcing strips used for being embedded into two-side plate structures so as to reinforce the transverse and longitudinal strength of the plate. The method has the advantages that the smoothness of the bamboo plate can be improved, the utilization rate of the bamboo is increased, the strength of the plate is reinforced, the service life of the plate is prolonged, and the appearance ofthe plate is optimized.

Description

technical field [0001] The invention belongs to the technical field of bamboo processing, and relates to a board processing method using unfolded bamboo as a raw material. Background technique [0002] The bamboo tube is cut off, the inner and outer nodes and the bamboo green and bamboo yellow are removed by mechanical processing, the seam is opened, and after being softened at high temperature, it is sent into the expansion mold and flattened to obtain the whole bamboo expanded bamboo flat plate, whose width is basically equal to the circumference of the bamboo tube. And the unfolded surface has no visible cracks. Compared with the bamboo boards spliced ​​by traditional bamboo strips, the quality of the unfolded bamboo boards is obviously improved. The finished product can be directly used by users, or it can be used as a new type of material for further processing to make other types of wood-based panel products. [0003] However, there are also many technical problems i...

AI Technical Summary

Problems solved by technology

[0003] However, there are also many technical problems in the expanded bamboo panels, which make the response of the bamboo panels in the market relatively cold, including the bamboo knots of the expanded bamboo, because the fiber density is relatively high, and the fiber distribution is irregular and dense, resulting in the bamboo panels in the market. The knot position is easy to deform. Specifically, the two sides of the bamboo knot expand, while the shape of the bamboo knot becomes smaller. Because the fiber density of other parts of the bamboo knot is relatively low, and the fiber density is relatively uniform, the deformation is relatively uniform, so that the bamboo knot The deformation of the knot position is prominent, which affects the overall aesthetics, stability and use effect of the bamboo board

[0004] The fiber density of the bamboo green side is higher than that of the bamboo yellow side, and the fiber density gradually increases from the bamboo yellow side to the bamboo green side, and the density is higher at the bamboo knot. The outer two sides are in a V-shaped convex state, which makes it easy to cause unevenness at the bamboo knot during the bamboo processing process, so that more fibers need to be cut off on the yellow side of the bamboo board, which affects the utilization rate of the bamboo.

[0005] Bamboo boards made of unfolded bamboo still have strength defects, because bamboo fibers are distributed longitudinally, resulting in low transverse bending strength. Even the boards after splicing also have such problems, which affect the application of the boards. scope and application

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