Method for manufacturing reconstituted decorative lumber through high-frequency hot-pressing method

A technology of reorganizing decorative materials and high-frequency hot pressing, applied in the field of wood processing, to achieve the effects of uniform curing degree, increased heating rate, and short high-frequency hot pressing cycle

Active Publication Date: 2017-08-04
DEHUA TB NEW DECORATION MATERIAL CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the current gluing process of recombined decorative materials, the pre

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A method for manufacturing recombined decorative materials by high-frequency hot pressing, comprising the following steps:

[0031] (1) Peel, peel, and cut Ayousi logs to make veneer A with a thickness of 0.5mm;

[0032] (2) sorting the veneer A obtained in step (1), bleaching, dyeing, and drying to obtain veneer B with a moisture content of 10%;

[0033] (3) Carry out veneer B that step (2) obtains according to the design requirements such as product texture, color and luster, carry out filling, combination, double-sided gluing and slab forming to obtain slab, the adhesive agent that described gluing is used is urea-formaldehyde resin, gluing The amount of sizing is 240g / m 2 ;

[0034] (4) Fix the two slabs assembled in step (3) together with their respective molds at a pressure of 9MPa, wrap them with polyethylene film, and stack them between the upper platen and the lower platen of the high-frequency heat press between;

[0035] (5) Turn on the high-frequency gen...

Embodiment 2

[0048] A method for manufacturing recombined decorative materials by high-frequency hot pressing, comprising the following steps:

[0049] (1) Peel, peel and cut the basswood logs to make veneer A with a thickness of 0.4mm;

[0050] (2) sorting the veneer A obtained in step (1), bleaching, dyeing, and drying to obtain veneer B with a moisture content of 6%;

[0051] (3) Carry out veneer B that step (2) obtains according to the design requirements such as product texture, color and luster, carry out filling, combination, double-sided gluing and slab forming to obtain slab, the adhesive agent that described gluing is used is urea-formaldehyde resin, gluing The amount of sizing is 200g / m 2 ;

[0052] (4) Fix the two slabs assembled in step (3) together with their respective molds, and wrap them with polypropylene film, then stack them between the upper platen and the lower platen of the high-frequency hot press, and turn on the high Frequency generator, turn on the power to pr...

Embodiment 3

[0066] A method for manufacturing recombined decorative materials by high-frequency hot pressing, comprising the following steps:

[0067] (1) Poplar logs are peeled, peeled, and cut to make veneer A with a thickness of 0.8mm;

[0068] (2) Sorting the veneer A obtained in step (1), bleaching, dyeing, and drying to obtain a veneer B with a moisture content of 16%;

[0069] (3) Carry out veneer B that step (2) obtains according to the design requirements such as product texture, color and luster, carry out filling, combination, double-sided gluing and slab forming to obtain slab, the adhesive agent that described gluing is used is urea-formaldehyde resin, gluing The amount of sizing is 300g / m 2 ;

[0070] (4) Fix the two slabs assembled in step (3) together with their respective molds, and wrap them with polypropylene film, then stack them between the upper platen and the lower platen of the high-frequency hot press, and turn on the high Frequency generator, turn on the power...

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PUM

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Abstract

The invention provides a method for manufacturing a reconstituted decorative lumber through a high-frequency hot-pressing method. The method comprises the following steps: (1) carrying out peeling, rotary-cutting and cutting on logs to obtain veneers A; (2) carrying out bleaching, dyeing and drying treatment on the veneers A after separation to obtain veneers B; (3) carrying out scarf patch repair, combination, double-sided gluing and assembly on the veneers B to obtain slabs; (4) placing each two assembled slabs between an upper press plate and a lower press plate of a high-frequency hot-pressing machine; (5) starting up a high-frequency generator, electrifying to preheat a metal plate and then turning on the pressing machine, turning off the pressing machine when 1/2-2/3 of a hot-pressing period is achieved, and vertically replacing the positions of the two reconstituted decorative lumber slabs between the press plates and then continuing to heat until the whole hot-pressing period is achieved, wherein the hot-pressing period is 4-6h; and (6) cooling the slabs, then detaching films and distributing to relief a pressure, and then taking out the slabs and carrying out square-cutting. The preparation method provided by the invention is simple in process and high in production efficiency; and the product is high in gluing quality and uniform in adhesive curing.

Description

technical field [0001] The invention belongs to the technical field of wood processing, and in particular relates to a method for manufacturing recombined decorative materials by using a high-frequency hot pressing method. Background technique [0002] The recombined decorative material is prepared from basswood, poplar, Ayous and other veneers through processes such as bleaching, lamination, molding, and gluing. In its gluing process, some domestic manufacturers adopt the traditional hot pressing method. For example, the patent No. ZL200810104284.3 describes a 30cm recombined decorative However, in actual production and application, if this hot pressing process is adopted, the thickness of the product will be severely limited. This is because the heat transfer of traditional contact hot pressing is from the surface to the inside, and the thickness of the recombined decorative material slab is at least More than 600mm, and there are thousands of glue layers between the slab...

Claims

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Application Information

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IPC IPC(8): B27D1/08B27D1/04B27K5/02B27K5/04
CPCB27D1/04B27D1/08B27K5/02B27K5/04
Inventor 詹先旭唐周梅李延军杨勇许斌
Owner DEHUA TB NEW DECORATION MATERIAL CO LTD
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