Manufacturing technology of high-strength laminated wood

Abstract

The invention discloses a manufacturing technology of high-strength laminated wood. The manufacturing technology comprises the following steps that S1, finger joint treatment is conducted on wood raw materials; step S2, carrying out delignification and hemicelluloses treatment on the wood subjected to finger joint treatment through a chemical reagent; s3, the wood treated in the step S2 is washed, and the wood is dried after being washed; s4, the wood treated in the step S3 is placed in impregnation liquid containing an adhesive, and curing treatment is conducted on the wood; s5, the wood subjected to curing treatment is assembled according to the type of the laminated wood, and an assembled test piece is obtained; step S6, carrying out pressurization and densification treatment on the assembly test piece; and S7, carrying out deep processing on the assembly test piece subjected to pressurization and densification treatment, and carrying out planing, deep processing, surface treatment and packaging to obtain a final product. By means of the method, the density of the interior of the laminated wood can be improved, and the high-strength laminated wood is obtained.

Description

technical field [0001] The invention relates to the technical field of wood structure manufacturing, in particular to a manufacturing technology of high-strength glued wood. Background technique [0002] The use of wood products as an alternative to metal, concrete and some plastics has become a hot research topic in recent decades. The production of other structural materials (steel, alloys, plastics, etc.) is accompanied by the consumption of a large amount of raw materials, and the reserves of these raw materials cannot be updated in time. In addition, the production of most existing building materials requires a lot of energy consumption, especially in recent years, the country has implemented a "double carbon" policy. Due to its low strength, wood cannot meet the requirements of high-rise and long-span buildings, so it is particularly important to develop and produce high-strength wood. [0003] Wood has a large number of structural defects that can act as a source of...

AI Technical Summary

Problems solved by technology

The wood with most lignin and hemicellulose removed has a large porosity, which makes it easier for the macromolecular modified resin to impregnate into the interior of the wood, but the overall density of the wood at this time is lower, which indirectly leads to the elastic modulus of the wood at this time. lower volume

In the prior art, there is no technical means to effectively improve the strength of glued wood. In view of this, this application proposes a manufacturing technology of high-strength glued wood

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