Manufacturing method for composite artificial board (LVS)

A manufacturing method and plate technology, which are applied in the direction of manufacturing tools, wood processing appliances, and the joining of wooden veneers, can solve the problems that the surface cannot be engraved and milled, are easily warped, and have poor coloring properties, and can protect the large diameter of the forest. high-grade wood resources, promoting healthy development, and reasonable selection of production technology and equipment

Inactive Publication Date: 2013-01-30
NANJING FORESTRY UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can solve the shortcomings of ordinary plywood and particleboard, such as easy warping, deformation, cracking, poor coloring performance, and the surface cannot be engraved and milled. At the same time, its physical and mechanical properties are obviously superior to plywood, medium ( High) density fiberboard or particleboard, its application field has also been extended and broadened

Method used

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  • Manufacturing method for composite artificial board (LVS)
  • Manufacturing method for composite artificial board (LVS)
  • Manufacturing method for composite artificial board (LVS)

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0026] 1. The LVS product made by the secondary molding process of the present invention has high quality, good bonding strength, peeling rate, elastic modulus and other indicators. In addition, the positioning of the upper and lower surfaces of the secondary molding process is relatively easy, so the present invention mainly adopts two LVS is made by secondary molding process method.

[0027] 2. The test results show that the structural parameters and hot-pressing process parameters of test number 4 are relatively ideal, and its static bending strength and internal bonding strength in the vertical direction are higher than those of other test numbers. Its water-absorbing thickness expansion rate is also relatively low, so the present invention mainly adopts the structural parameters and hot-pressing process parameters of No. 4 experimental scheme.

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Abstract

The invention provides a manufacturing method for a composite artificial board (LVS), wherein plywoods, particleboards and medium-density (high-density) fibreboards have the insurmountable defects of easiness to warp, deform and crack, bad colouring property, incapacity of engraving and routing surface, and the like while having good mechanical strength respectively due to different composition units and different machining processes. The manufacturing method for a composite artificial board (LVS) comprises the following steps of: using medium-high density fibreboards as surface layers (a front board and a back board), and using multilayer plywoods or particleboards as the lining layer of a base material; before assembly for the composite artificial board (LVS), performing galling treatment on the thin-type medium-density (high-density) fibreboards at first, and then performing double-surface gluing on a core layer material, and finally conveying the fibreboards and the core layer material to a hot press to perform hot-pressing treatment. According to the invention, the problems of the common plywoods and particleboards are solved, the dimensional stability and the compressive strength of the board are improved, and the use fields of the composite board are extended and expanded. More importantly, via the composite artificial board (LVS), both large-diameter-class wood and small-diameter-class brushwood can be utilized, thus achieving the purpose of comprehensively utilizing a whole tree.

Description

1. Technical field [0001] The invention relates to a method for manufacturing a composite wood-based panel (LVS). The composite wood-based panel (LVS) produced by the manufacturing method can easily process decorative panels with concave-convex textures or various engraving and milling patterns on the surface. 2. Background technology [0002] At present, the widely used plywood, particleboard and medium (high) density fiberboard have different composition units and processing techniques. [0003] Plywood is a board formed by cutting logs into large veneers along the direction of annual rings, after drying and gluing, they are assembled and glued according to the principle that the wood grain directions of adjacent veneer layers are perpendicular to each other. Its advantages are: high strength and good bending resistance. The disadvantages are: poor stability, easy warping, bubbling, partial cracking, and production needs to consume a lot of large-diameter logs, wasting wo...

Claims

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Application Information

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IPC IPC(8): B27D1/08
Inventor 周国平朱捷屈少君朱典想
Owner NANJING FORESTRY UNIV
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