Non-uniform thickness bamboo chip integrated plate and production technology method thereof

Abstract

The invention discloses a non-uniform thickness bamboo chip integrated plate and a production technology method thereof. The production technology method is characterized in that the original moso bamboo arc-shaped bamboo chip is milled into the non-uniform thickness bamboo chip of which the thickness is changed from one end to the other end, one end of the non-uniform thickness bamboo chip is thicker, and the other end is thinner; then, the non-uniform thickness bamboo chip is steamed or charred and dried, is subjected to carbon returning processing, is dipped with resin adhesive and dried again; each bamboo chip unit body is laterally and vertically arranged; bamboo green and bamboo green surface are abutted, or tabasheer and tabasheer are abutted; the thick ends and the thin ends of adjacent two bamboo chips are alternately overlaid and tightly and tidily arranged to integrate a blank plate; and environmentally-friendly urea resin adhesive is subjected to hot-pressing shaping. The non-uniform thickness bamboo chip integrated plate disclosed by the invention saves material, has the advantages of low unit product cost, compact structure, even density, small internal stress, small possibility of deforming and good size stability, usability and secondary processability, and can be widely applied to the building industry and decoration industry.

Description

technical field [0001] The invention belongs to the technical field of production of bamboo boards, and in particular relates to a non-equal-thickness bamboo integrated board with moso bamboo as a raw material and a production process thereof. Background technique [0002] At present, with the restriction of harvesting and cutting of timber resources in various countries, people are beginning to make more use of environmentally friendly and fast-growing bamboo, and apply it to various fields such as furniture, daily necessities, and building materials, such as bamboo plywood flooring. Existing bamboo plywood floors are all made of large-diameter bamboos such as moso bamboo, which are cut or split into bamboo slices or strips of wool, and then the wool slices are processed into equal-thick bamboo slices (strips) of the same thickness, and the adjacent bamboo strips are vertically arranged in rows. The green and yellow pieces are pasted together, and after being glued, they ar...

AI Technical Summary

Problems solved by technology

This method of processing bamboo slices with equal thickness does not take into account the structural characteristics of the vertical tip of moso bamboo. The physical stock of bamboo is not effectively preserved during processing, which increases the amount of cutting and wastes bamboo processing. The material utilization rate is only 45%. %about

Recently, there is a kind of high-density heavy bamboo flooring, which is produced by the method of recombining and strengthening bamboo materials. This kind of heavy bamboo is first twisted and pressed into bamboo shreds. This kind of random laying in the longitudinal direction produces many intersecting and superimposed acute angles of continuous bamboo pieces, and there are many holes in the middle that are not penetrated. After applying high pressure, the holes are only compressed and reduced, but they still exist in the board body. , there will be air and water that are difficult to escape in these holes, the glue content between the holes and their surroundings is uneven, some parts are very dense, some parts are loose, and the overall density is uneven

However, the density is too high, the consumption of raw materials per unit is high, the expansion rate of water absorption thickness is large, and the difficulty of subsequent processing is increased. The above-mentioned reasons cause the internal stress of the heavy bamboo material to be large, easy to deform, poor dimensional stability, poor weather resistance, and high unit product cost. It is necessary to make further improvements and

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