Fabrication method for veneer based external wall panels

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 poor water resistance, corrosion resistance and weather resistance, easy expansion and contraction deformation, and failure to reach external wall hangings. Board use requirements and other issues, to achieve the effect of low cost, beautiful appearance, simple and fast installation and construction

Active Publication Date: 2016-09-28
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 external wall hanging board includes the following steps:

[0027] (1) Using 1.5mm thick domestic poplar veneer (moisture content ≤ 15%) as raw material, gluing is carried out by a gluing machine, and the mixed resin modification liquid used for gluing is (the following proportions are weight percentages): phenolic Resin 40% (solid content), borax or borate preservative 1%, nanometer TiO 2 0.1%, nanometer ZnO 0.1%, coloring material 0.5%. Single-sided glue coating of veneer is 120g / m 2 ;

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

[0029] (3) After the 7-layer dried veneer is assembled into blanks in a way that the wood grains of adjacent layers are parallel to each other (laminated timber 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 pressing temperature is 150℃, the hot pressing pressure is 1.2MPa, and the time is 10-15 minutes t...

Embodiment 2

[0034] A method for manufacturing a veneer-based external wall hanging board includes the following steps:

[0035] (1) Using 1.7mm-thick domestic poplar veneer (10-15% moisture content) as raw material, gluing is carried out by a gluing machine. The mixed resin modification liquid used for gluing is (the following proportions are weight percentages): Isocyanate resin 40% (solid content), borax 1.5%, zinc borate preservative 1.5%, nanometer TiO 2 0.1%, nano-scale ZnO 0.1%, coloring material 0.5%, single-sided coating amount of veneer 150g / m 2 ;

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

[0037] (3) The 7-layer dried veneer is assembled into blanks (plywood method) according to the wood texture of the adjacent layers in a crisscross pattern to form a slab;

[0038] (4) Put the slab into a hot press equipped with a relief mold for hot press molding, the hot pressing temperature is 150 ℃, the hot pressing pressure is 1.5 MPa, and the time is 10-15 minutes to make ...

Embodiment 3

[0042] A method for manufacturing a veneer-based external wall hanging board includes the following steps:

[0043] (1) Using 2mm-thick domestic eucalyptus veneer (with moisture content of 5-15%) as raw material, gluing is carried out by a gluing machine, and the mixed resin modification liquid used for gluing is (the following ratio is weight percentage): Poly Vinyl acetate 40% (solid content), borax 0.5%, zinc borate preservative 1.5%, nanometer TiO 2 0.1%, nano-level ZnO 0.1%, coloring material 0.5%, single-sided coating amount of veneer is 200g / m 2 ;

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

[0045] (3) After the five-layer dried veneer is assembled into blanks (plywood method) in a crisscross pattern of adjacent layers of wood texture, a slab is formed;

[0046] (4) Put the slab into a hot press equipped with a relief mold for hot press molding, the hot pressing temperature is 150 ℃, the hot pressing pressure is 1.5 MPa, and the time is 10-15 minutes to m...

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PUM

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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 external wall hanging board. 【Background technique】 [0002] Exterior wall hanging boards are building boards used for exterior walls to achieve a certain decoration or heat preservation effect. The use of exterior wall hanging boards to decorate projects is currently the most labor-saving and time-saving decoration scheme. The external wall siding must have basic properties such as corrosion resistance, high temperature resistance, weather resistance, aging resistance, no radiation, fire resistance, insect resistance, and no deformation. At the same time, it also requires beautiful appearance, simple construction, environmental protection and energy saving. Specifically, the external wall hanging boards require good decoration, rich colors, relatively natural and simple; resistant to severe cold and heat, anti-ultraviolet, anti-agi...

Claims

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Application Information

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Patent Type & Authority Applications(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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