Fibre veneer board and its production method

A production method and plywood technology, applied in the field of fiber plywood, can solve the problems of uneven thickness, low strength, and large strength fluctuation of plywood, and achieve the effects of smooth surface, accurate product size, and high material utilization rate

Inactive Publication Date: 2005-06-08
吴小凤
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This is also the main reason why the cost of plywood is higher than that of MDF
[0006] (2) It is difficult to control the quality of the production process
[0007] ① Large thickness deviation
Due to factors such as wood species, tree age and moisture content, the thickness of the veneer cut out by rotary cutting is inconsistent after drying, which brings difficulties to the formation of boards
At the same time, the wood species and tree age are different, and the compression rate is not consistent when they are formed under the same pressure, which will easily cause uneven thickness of the plywood.
[0008] ② Large fluctuations in intensity
[0009] ③Large warping deformation
[0018] (1) The process of fiber separation and drying consumes a lot of energy
[0019] (2) Low strength

Method used

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  • Fibre veneer board and its production method
  • Fibre veneer board and its production method
  • Fibre veneer board and its production method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Single-sided wood-grain decorative fiberboard: choose veneer with better texture, such as beech, willow, walnut, etc., glue on one side, and glue the glued side to the fiber layer, see figure 1 shown.

Embodiment 2

[0049] Double-sided wood grain decorative fiberboard: the veneer used for the bottom board and the front panel, the inner surface of which is glued and bonded with the middle fiber layer, as shown in Figure 2.

Embodiment 3

[0051] Two-layer veneer strong fiberboard:

[0052] The order of arrangement from bottom to surface is: veneer (longitudinal), inner surface glued → fiber layer → veneer (horizontal), double-sided glued → fiber layer. See Figure 3.

[0053] The veneer is arranged vertically or horizontally or vertically and horizontally, which can be determined according to the stress situation during use, and most of them should be vertically and horizontally arranged.

[0054] Between the veneer and the veneer, a layer of fiber layer should be laid. Because after the wood is peeled and dried, it is inevitable that there will be cracks. Defects such as holes and wood grain grooves, if the veneers are bonded to each other, will form voids, reduce strength, and are not beautiful. If there is a fiber layer between the veneers, the fiber can fill these gaps, the reinforcing effect is remarkable, and the strength is high and stable.

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Abstract

A fibrous plyboard is prepared from at least one single board, and at least one fibrous layer through providing single board(s), providing fibres, shaping raw board, prepressing, hot pressing, and post-treating.

Description

technical field [0001] The invention relates to the technical field of multilayer composite boards, in particular to a fiber-reinforced board. Background technique [0002] At present, the most widely used wood-based panels are mainly plywood and medium density fiberboard (hereinafter referred to as MDF). Both have pros and cons. [0003] Plywood is made by cutting logs into veneers of a certain thickness, drying (reducing the moisture content to below 14%), sizing, arranging boards to form blanks (generally vertical and horizontal lamination), and pressing. The advantages are simple equipment, short process flow, low energy consumption in the production process, basically no three wastes, light product quality (density is generally around 0.5, related to wood species and molding pressure), high strength (most of the static bending strength can reach 50Mpa or more), use a good veneer as the bottom, and the panel has a very beautiful wood texture after sanding. [0004] Pl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B32B21/00
Inventor 吴小凤
Owner 吴小凤
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