A kind of bamboo wood composite material

Abstract

A kind of bamboo-wood composite material, including Nanzhu, the bamboo material is processed into fine-standard bamboo slices with equal thickness at both ends, and the fine-marked bamboo slices are woven into bamboo curtains with thin strings; the bamboo curtains are dried, and the moisture content is less than 12%. Carry out press-in gluing; dry the wood chips after rotary cutting to make the moisture content less than 12%, and roll the glue; assemble the bamboo curtains after gluing and the wood chips after gluing at intervals, pre-press and hot press Forming to form a composite plate. When making a special-purpose composite plate blank, special materials are added. The press-in glue application device includes a pressure glue tank, and a bamboo curtain stacking frame is placed in the pressure glue tank. There is a glue pool in the lower part of the glue tank, and the glue pool has a rubber inlet pipe to pressurize the glue tank through a glue pump. The bamboo-wood composite material of the present invention is mainly used in various construction markets and furniture markets, including replacing large core boards and can be used for various types of houses and family decoration. Packaging materials can also be used for wood materials required for transportation tools, etc.

Description

technical field [0001] The invention relates to a building material, namely a bamboo-wood composite material and a press-in type gluing device thereof. Background technique [0002] my country is the country with the most abundant bamboo resources in the world, with more than 40 genera and more than 400 species. The bamboo species, planting area and stock volume all rank first in the world. Among the bamboo resources in my country, the output of Nanzhu with the highest utilization value accounts for about 90% of the world. %. A few years ago, technicians successfully developed a military truck box panel product that was processed from bamboo into bamboo slices, applied phenolic resin glue, and then hot-pressed. Later, technicians developed a bamboo curtain laminated bamboo plywood template. Bamboo plywood formwork has the advantages of high strength, good toughness, and high elastic modulus, and has been recognized by the construction industry. However, since the Asian finan...

AI Technical Summary

Problems solved by technology

[0003] 1. Although bamboo has the advantages of good toughness, high elastic modulus, and short bamboo growth cycle, it also has uneven diameter grades, different thicknesses of bamboo, low yield of young bamboo, difficult bamboo processing and low automation level. Problems such as rough production and processing

[0004] 2. Compared with wooden plywood, bamboo plywood has disadvantages such as high density, high specific gravity, poor surface flatness and uneven color difference, large thickness tolerance, uneven edge line, easy deformation, difficult nailing and splicing during product use.

And during the processing process, due to the uneven thickness of the bamboo, the amount of glue is too large and the cost is increased.

[0005] 3. Bamboo materials vary in density, water content, bamboo thickness, diameter class, and bamboo age due to soil quality, climate, sunshine, and growth cycle. It is difficult to control the moisture after the gluing; the coating of the glue generally adopts the impregnation process of water-soluble phenolic resin, because the density of the bamboo is different, the amount of gluing is also different; The content is also different. If the moisture is controlled by drying, once the temperature is not well controlled, the adhesive may be cured in advance. At present, there is no ideal equipment or process in China to control the moisture of bamboo after gluing, resulting in pure bamboo plywood. The quality is difficult to stabilize

[0006] 4. High wood utilization rate, easy processing, good flatness, easy to nail, easy to cut, easy to splice the product during use, but poor toughness, low elastic modulus, large water expansion coefficient, shortage of wood resources, and short growth cycle long, and the harvesting of timber has a great impact on the ecology

However, wood plywood has poor elasticity, and the number of product cycles is small, causing great damage to forest resources and affecting the ecological environment.

Images