Flattening method for bamboo tubs in high-temperature tank

Abstract

The invention provides a flattening method for bamboo tubes in a high-temperature tank. The flattening method comprises the following technological steps that (1) pretreatment is conducted on the fresh bamboo tubes; (2) the bamboo tubes are stacked; (3) high-temperature self-flattening is conducted on the circular bamboo tubes in the tank; and (4) post-treatment is conducted after bamboo chips are flattened. The fresh bamboo tubs are subjected to rapid heating and heat-moisture treatment through high-temperature steam in the high-temperature saturated steam tank at the temperature of 130-160 DEG C, and the temperature of the bamboo tubes is made to reach the softening point of lignin, cellulose and hemicellulose. In this way, the circular bamboo tubes with saw kerfs are flattened through round bar steel in the bamboo tubes under the dead-weight action of weights such as external iron blocks, the treatment temperature in the bamboo tube flattening process is decreased, the labor intensity in the operating process of workers is relieved, and the severe environment is improved. The manufactured flattened bamboo tubes are better in physical and mechanical performance and other performance, attractive in color and suitable for art work fabrication, furniture fabrication and house decoration. An optimal processing method is provided for the bamboo industry.

Description

Technical field [0001] The invention relates to a method for flattening bamboo tubes in a high-temperature tank, and belongs to the technical field of bamboo processing in the wood industry. Background technique [0002] Household flooring and outdoor wood materials mainly use natural solid wood, such as African pineapple grid, Burmese teak, South American Ibei and American oak and other large-diameter hardwoods, and Russian pine and American southern pine treated with preservatives. However, with the development of social economy and the increase of population, the global demand for wood is increasing. Due to increasing global environmental pressure, governments and people of various countries have strengthened their environmental awareness and realized the importance of protecting forests. The supply of large-diameter logs has become increasingly scarce. The era of relying on natural forest logs as raw materials has passed. [0003] my country’s bamboo resources are concentrated...

AI Technical Summary

Problems solved by technology

These provide a solid and sustainable resource base for the development of bamboo processing in my country. The round bamboo tube is flattened without cracks because of its sustainable source of raw materials, high utilization rate, and beautiful texture. In today’s shortage of tropical hardwoods, there will be a lot of opportunities in the future. There is a lot of room for development, but the existing round bamboo needs to be flattened in high-temperature steam (such as 180°C), requires a special boiler, and requires a high compressive strength of the pressure tank (minimum 1.8MPa)

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