Formaldehyde-free plywood of full-symmetrical structure

A plywood, fully symmetrical technology, used in the bonding of wooden veneers, adhesive application devices, manufacturing tools, etc., can solve problems such as formaldehyde release and plywood deformation

Inactive Publication Date: 2017-07-14
东营市盛基环保工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a formaldehyde-free ply

Method used

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  • Formaldehyde-free plywood of full-symmetrical structure
  • Formaldehyde-free plywood of full-symmetrical structure

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example one: such as figure 1 As shown, from the center line of the plywood to both sides, layers 1 and 1-1, 2 and 2-1, 3 and 3-1, 4 and 4-1 are arranged respectively, of which 1 and 1-1 have the same material and the same thickness , The wood fiber is in the same direction, and the loose surface of the rotary cut veneer is opposite. 2 is the same material as 2-1, the same thickness, the wood fibers are in the same direction, and the loose surfaces of the rotary cut veneer are opposite; the fiber directions of layer 2 and layer 1 are perpendicular to each other.

Example Embodiment

[0017] Embodiment two: such as figure 2 As shown, from the center line of the plywood to both sides, layers 1 and 1-1, 2 and 2-1, 3 and 3-1, 4 and 4-1 are arranged respectively, of which 1 and 1-1 have the same material and the same thickness , The wood fiber is in the same direction, and the rotary cut veneer faces tightly. 2 and 2-1 have the same material, the same thickness, the wood fiber in the same direction, and the tight sides of the rotary cut veneer are opposite; the fiber directions of layer 2 and layer 1 are perpendicular to each other.

Example Embodiment

[0018] Example 3: From the center line of the plywood to both sides, the layers 1 and 1-1 are of the same material, the same thickness, the wood fibers are in the same direction, and the rotary cut veneer faces tightly opposite. 2 is the same material as 2-1, the same thickness, the wood fibers are in the same direction, and the loose surfaces of the rotary cut veneer are opposite; the fiber directions of layer 2 and layer 1 are perpendicular to each other.

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Abstract

The invention relates to the field of wood processing, in particular to plywood of a full-symmetrical structure. The plywood is composed of even layers of rotary cut veneers, specifically, the middle two layers of rotary cut veneers are the same in wood fiber direction and opposite in loose face and tight face, and veneers which are perpendicular to the corresponding inner veneers in fiber direction, opposite to the corresponding inner veneers in loose face or tight face, and same as the corresponding inner veneers in thickness and texture are sequentially arranged from middle to outside. Owing to the fact that the full-symmetrical even-layer structure is adopted, the stress of all layers of the plywood is mutually counteracted from middle to outside, and a more stable balancing state is achieved; and meanwhile a formaldehyde-free adhesive is adopted, and therefore formaldehyde pollution is effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels and their manufacture in the wood processing industry, and relates to a formaldehyde-free fully symmetrical plywood. Background technique [0002] Plywood is one of the commonly used packaging materials for furniture and is a kind of wood-based panel. Usually, the boards are glued together according to the wood grain direction of adjacent layers perpendicular to each other. Usually, the surface board and the inner layer board are arranged symmetrically on both sides of the center layer or the board core. The slab made of the veneer after gluing is criss-crossed according to the direction of wood grain, and pressed under heating or non-heating conditions. The number of layers is generally odd, and the deployment of the elastic surface of the rotary-cut veneer is often ignored in the production process. [0003] According to wood-based panel technology, the veneer is developed according ...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27G11/00
CPCB27D1/04B27G11/00
Inventor 杨奠基石延芳
Owner 东营市盛基环保工程有限公司
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