Method for manufacturing high quality recombinant bamboo

Abstract

The invention belongs to the field of fire doors, and particularly relates to a method for manufacturing high quality recombinant bamboo. The method comprises steps of firstly, selecting bamboo wood, secondly, uniformly paving the bamboo wood and applying glue on the bamboo wood to form a bamboo plate to be pre-pressed, thirdly, pushing the pre-pressed bamboo plate into a high frequency hot press, fourthly, pre-pressing the bamboo plate to be pre-pressed, fifthly, starting the high frequency hot press to manufacture a bamboo plate through high frequency hot pressing for 6 to 45 minutes, and sixthly, unloading pressure which is applied on the bamboo plate by an upper pressing plate and a side pressing plate after high frequency hot pressing, and sending the bamboo plate from the high frequency hot press. The high frequency hot press comprises a lower support board used for supporting a bamboo plate to be pre-pressed, an upper pressing plate used for pressing on the bamboo plate to be pre-pressed and a side pressing plate applying pressure on a side of the bamboo plate to be pre-pressed. The high frequency voltage is characterized in that a high frequency electric field can penetrate a base plate, so that the inner and the outer of the base plate can be synchronously and uniformly heated, the method is quick in speed and low in energy consumption, so the method is particularly suitable for hot-press gluing a bamboo plate with a large section.

Description

technical field [0001] The invention belongs to the field of fire doors, and in particular relates to a method for manufacturing high-quality recombined bamboo with uniform heating, high speed and low energy consumption. Background technique [0002] There are two traditional production methods of bamboo recombined wood: cold press forming-high temperature curing and multi-layer press hot press forming. cold [0003] The pressure exerted on the bamboo by pressing is as high as 70MPa, and the bamboo cells are often crushed, and the curing time of the cold-pressing adhesive is as long as 10-12 hours, and the curing time after curing is more than 20 days, which requires a large production site. Cold forming uses steel molds, which are large in quantity and easy to damage, and require manual mold loading and unloading, which is labor-intensive for workers. [0004] The maximum processing thickness of the traditional hot press is ≤36mm (heating time is up to 45min), the process...

AI Technical Summary

Problems solved by technology

Steel molds are used for cold forming, which are large in quantity and easy to damage, and require manual mold loading and unloading, and the labor intensity of workers is high

[0004] The maximum processing thickness of the traditional hot press is ≤36mm (heating time is 45min), the processing thickness is small, and the scope of application is small. Due to the contact heat transfer of the multi-layer hot press, the product density is high in the upper and lower layers, and the density of the core layer is low. The density must be More than 1.1 g / cm3 is seamless, high energy consumption and many cross-sections