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A kind of manufacturing method of veneer-based exterior wall hanging board

A manufacturing method and veneer-based technology, which is applied in the jointing of wooden veneers, manufacturing tools, wood compression, etc., can solve the problems of easy expansion and contraction deformation, poor waterproofness, corrosion resistance and weather resistance, and failure to reach external wall hangings. The use requirements of boards and other issues have been achieved to achieve the effects of low cost, good nail holding force, and simple and fast installation and construction.

Active Publication Date: 2019-05-21
NINGBO ZHONGJIA LOW CARBON NEW TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there are laminated lumber and plywood made of wood veneer on the market, although the cost is low, but due to problems such as poor water resistance, corrosion resistance and weather resistance, and easy expansion and contraction deformation, they cannot meet the requirements of external wall siding. Use requirements, most of them can only be used indoors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for manufacturing a veneer-based exterior wall siding, comprising the following steps:

[0027] (1) With 1.5mm thick domestic poplar veneer (moisture content ≤ 15%) as raw material, carry out gluing by gluing machine, the used mixed resin modification liquid of gluing is (the following ratio is percentage by weight): phenolic Resin 40% (solid content), borax or borate preservative 1%, nano TiO 2 0.1%, nano ZnO 0.1%, coloring material 0.5%. The amount of glue applied on one side of the veneer is 120g / m 2 ;

[0028] (2) drying the glued veneer to a moisture content of 5-15%;

[0029] (3) After the 7-layer dried veneer is formed into blanks in a manner that the wood textures of adjacent layers are parallel to each other (laminated lumber method), a slab is formed;

[0030] (4) Put the slab into a hot press equipped with a relief mold for hot press molding. The hot press temperature is 150°C, the hot press pressure is 1.2MPa, and the time is 10-15 minutes, so t...

Embodiment 2

[0034] A method for manufacturing a veneer-based exterior wall siding, comprising the following steps:

[0035] (1) With 1.7mm thick domestic poplar veneer (moisture content 10-15%) as raw material, glue is applied by a glue spreader, and the mixed resin modification solution used for glue coating is (the following ratios are percentages by weight): Isocyanate resin 40% (solid content), borax 1.5%, zinc borate preservative 1.5%, nano-sized TiO 2 0.1%, nano ZnO 0.1%, coloring material 0.5%, the amount of glue on one side of the veneer is 150g / m 2 ;

[0036](2) drying the glued veneer to a moisture content of 5-15%;

[0037] (3) After the 7-layer dried veneer is formed into a blank (plywood method) according to the criss-cross pattern of adjacent layers of wood textures, a slab is formed;

[0038] (4) Put the slab into a hot press equipped with a relief mold for hot-press molding. The hot-press temperature is 150°C, the hot-press pressure is 1.5MPa, and the time is 10-15 minu...

Embodiment 3

[0042] A method for manufacturing a veneer-based exterior wall siding, comprising the following steps:

[0043] (1) With 2mm thick domestic eucalyptus veneer (moisture content 5-15%) as raw material, carry out gluing by gluing machine, the mixed resin modification liquid used for gluing is (the following ratio is weight percent): Polymer Vinyl acetate 40% (solid content), borax 0.5%, zinc borate preservative 1.5%, nano TiO 2 0.1%, nano ZnO 0.1%, coloring material 0.5%, the amount of glue on one side of the veneer is 200g / m 2 ;

[0044] (2) drying the glued veneer to a moisture content of 5-15%;

[0045] (3) After 5 layers of dried veneers are formed into blanks (plywood mode) according to the criss-cross pattern of adjacent layers of wood textures, a slab is formed;

[0046] (4) Put the slab into a hot press equipped with a relief mold for hot-press molding. The hot-press temperature is 150°C, the hot-press pressure is 1.5MPa, and the time is 10-15 minutes, so that the surf...

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Abstract

The invention provides a fabrication method for veneer based external wall panels. The fabrication method for the veneer based external wall panels is characterized by comprising the steps that wood veneers with the moisture content of 1-15% and the thickness of 1-3.2 mm serve as raw materials and are soaked in or coated with mixed resin modified liquid; the obtained wood veneers are dried until the moisture content is 5-15%; then three to nine layers of the dried wood veneers are assembled to plate blanks; the plate blanks are put into a relief mould for mould pressing, wherein the mould pressing hot-press temperature is 130-150 DEG C, the hot-press pressure is 1-3 MPa, and the pressing time is 1.0-1.5 minutes for every 1 mm of thickness of the plate blanks; and the pressed plate blanks are sawed into strips of a certain specification, the front faces and the side edges of the strips are coated with weather-proof waterproof paint, and then the strips are fabricated to be the outdoor purpose external wall panels with an excellent decoration effect and anticorrosion and weather-proof functions.

Description

【Technical field】 [0001] The invention relates to the field of building decoration boards, in particular to a method for manufacturing a veneer-based exterior wall hanging board. 【Background technique】 [0002] Exterior wall hanging panels are building panels used for exterior walls to achieve a certain effect of decoration or heat preservation. The project using external wall hanging panels for decoration is currently the most labor-saving and time-saving decoration solution. External wall hanging panels must have basic properties such as anti-corrosion, high temperature resistance, weather resistance, anti-aging, no radiation, fire prevention, insect resistance, and no deformation. At the same time, they must also have beautiful appearance, simple construction, environmental protection and energy saving. Specifically, the exterior wall hanging panels require good decoration, rich colors, relatively natural and simple; resistance to severe cold and heat, UV resistance, agin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27D1/04B27M1/02B27K3/52
CPCB27D1/04B27K3/52B27K2240/20B27K2240/70B27K2240/90B27M1/02
Inventor 王建和王正高子震刘斌顾蓉蓉
Owner NINGBO ZHONGJIA LOW CARBON NEW TECH RES INST
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