Plywood production technology

Abstract

The invention discloses a plywood production process. The production steps include: log selection, log sawing, wood segment heat treatment, log segment peeling and log segment centering. The centering method adopted by the wood section of the process of the present invention is a mechanical centering method, which can improve the yield rate by about 2%-4%; the wood section heat treatment process included in the process of the present invention has the advantages of easy peeling, insecticidal Egg, which is beneficial to veneer storage and prevents the veneer from being crushed by the pressure bar during rotary cutting. It also has the advantages of softening the wood section, increasing plasticity, reducing the stress caused by reverse bending of the veneer, and reducing cracks on the back; The wood segment sawing method of the inventive process adheres to the principle of not only ensuring the quality of the veneer, but also obtaining the maximum utilization rate of the wood, so as to determine the reasonable position of the sawing of the log, which can effectively ensure the maximum utilization of the log; the process of selecting the log used in the process of the present invention It can maximize the avoidance of the defects of the log itself and ensure the maximum utilization rate.

Description

technical field [0001] The invention relates to the design and production process of alloy materials, in particular to a plywood production process. Background technique [0002] Plywood is a three-layer or multi-layer board-like material that is made of wood sections that are peeled into veneers or sliced ​​into thin wood, and then glued with adhesives. Usually, odd-numbered veneers are used, and adjacent layers of veneers are used. The fiber directions are glued perpendicular to each other. [0003] Plywood is one of the commonly used materials for furniture and is a kind of wood-based panel. A group of veneers are usually assembled and glued together according to the direction of the wood grain of adjacent layers perpendicular to each other. Usually, the surface board and inner layer board are symmetrically arranged on both sides of the center layer or core. The slab made of the veneer after gluing is criss-crossed according to the direction of wood grain, and pressed u...

AI Technical Summary

Problems solved by technology

Although the production method of its plywood is relatively detailed, there is no detailed description of its material selection, sawing and processing processes, which have an important impact on the production of plywood