Method for synthesizing tubular section by bamboo raw material secondary gel

Abstract

The invention relates to a method for processing and utilizing a bamboo raw material, in particular to a method for synthesizing a tubular section by a bamboo raw material secondary gel. The method is realized by the following technical scheme: A, performing pest-control and disinfection on bamboo by conventional methods to remove the bluish yellow color and external nodes on the bamboo surface, then performing pre-processing such as digesting, flattening, planning, drying and the like; B, arc-distinguishing the pre-processed bamboo and processing the bamboo into bamboo sheets with rectangular cross-sections, heating the bamboo to between 80 and 110 DEG C, immersing water-proof glue into the bamboo for gluing, laminating and pressing the bamboo to mould at high pressure; and shaping, and cooling the molded bamboo to obtain a primary section; C, cutting the section molded by gluing into a sheet-shaped section; D, reheating the sheet-shaped section to between 100 and 150 DGE C, coating hot cement on the surface of the sheet-shaped section, rolling the sheet-shaped section with the hot cement into a hollow slightly eccentric tubular shape with a certain thickness, and shaping and cooling the rolled section to obtain the tubular section.

Description

technical field [0001] The invention relates to a method for processing and utilizing bamboo raw materials, in particular to a method for secondarily gluing bamboo raw materials into tubular profiles. Background technique [0002] With the decrease of timber resources and the implementation of natural forest protection in our country, fully develop bamboo resources, increase the use value of bamboo, and replace wood with bamboo to achieve ecological balance, which has great sustainable development value. [0003] Because bamboo has the characteristics of wide distribution, fast growth and high yield, strong regeneration ability, wide application and high economic value, the current development goal of bamboo processing and utilization is to establish a large-scale development and utilization of high-efficiency utilization technology system with bamboo plywood and papermaking as the leading products . [0004] The main method of bamboo processing profile in the prior art has...

AI Technical Summary

Problems solved by technology

This molding method has a single variety of molding, low utilization rate of bamboo, and easy bending

[0006] 2. Cut bamboo materials such as moso bamboo into pieces or mince them, mix them with glue, and press and solidify them to form. This molding method uses a relatively high amount of glue, reaching more than 40%. It is similar to the composite material of bamboo and glue, and the cost is high. The profile lacks the natural texture of bamboo and loses the general natural properties of bamboo

The defect of this technology is that after the bamboo is split and dipped in glue, the molded materials of various shapes still lack the natural texture of bamboo, especially the defects of the profiles that need to be used around the periphery are particularly prominent

[0008] 4. In the prior art, there are also some production techniques of bamboo-plastic composite profiles, etc. (such as patent application numbers: 20031011875.9, 200610053677.7, etc.). Although this type of technology has been able to realize the needs of bamboo raw materials for the use of profiles, it has improved the use of bamboo materials. The mechanical strength improves its crack resistance and prolongs the service life of bamboo. However, due to the extensive use of hot-melt resins and plastics, the properties of the profiles are not much different from those of plastics, and the meaning of using bamboo materials is lost.