Hot press molding method for bamboo plates

Abstract

The invention discloses a bamboo plate hot press molding method which comprises the following steps: (1) glued bamboo plate blanks are put into a hot press in a non-overlapping manner according to thesame thickness of each layer with the surface being upward; (2) each plate is separated by a steel bar, and the middle of each veneer is separated by a bamboo chip; (3) the temperature of a hot pressing plate is controlled to be 95 + / -1 DEG C, the main pressure is 10 Mpa, the side pressure is 4-6 Mpa, and the heat preservation and pressure maintaining time is 150-180 s; and (4) the hot-pressed bamboo plates are demolded, the bamboo plates are placed on a supporting plate, performing uniform separating and radiating heat in the middle of each bamboo plate by using three straight bamboo sheetswith the same specification, and maintaining the bamboo sheets to obtain the required bamboo plate. Hot pressing is carried out through cured glue coating, single-layer hot pressing and single-plate composite hot pressing, the hot pressing temperature and the hot pressing time are reasonably adjusted, the performance of the bamboo plate is greatly improved, and the problem that hot pressing needsto be carried out immediately in traditional glue coating is effectively solved.

Description

technical field [0001] The invention belongs to the preparation technology of bamboo products, and in particular relates to a method for hot-pressing forming of bamboo boards. Background technique [0002] Bamboo is used as raw material to process and make boards. Because the raw materials are cheap, easy to obtain, low cost, beautiful in appearance, high in strength and good in performance, they are widely used in flooring, furniture and other decorative boards or other industries. In particular, moso bamboo grows fast and is rich in resources. It can be a good substitute for wooden boards, saves wood resources, and is conducive to the protection of the ecological environment. Therefore, it has been paid more and more attention by the country and the industry. The traditional processing method of bamboo boards is: take moso bamboo and break it into bamboo silk or bamboo slices, after drying, dip into the mold, and then press high pressure to solidify the molding materials. ...

AI Technical Summary

Problems solved by technology

The main purpose of this invention is to improve the strength and hardness of the composite material, and the bamboo substrate sheet for making bamboo flooring does not need to take into account the high strength and high hardness of the bamboo substrate sheet, the above-mentioned preparation process needs to carry out the bamboo material The strength requirements can only be achieved by thoroughly dissolving and dipping in glue. Therefore, the composite material board is not only high in production cost, but also consumes a lot of glue, and the utilization rate of bamboo is relatively low.

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