Anti-exposure eucalyptus laminated wood veneer and production method thereof

A production method and veneer technology, applied in the joining of wooden veneers, wood processing appliances, manufacturing tools, etc., can solve the problems of harming consumers' health, increasing the amount of formaldehyde released, and increasing the amount of glue applied, and achieve the finished product size High stability, reduced formaldehyde emission, and the effect of overcoming resilience

Active Publication Date: 2013-11-27
莫明鑫
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main way to solve this problem is to increase the amount of sizing per unit area to increase the bonding strength of plywood. However, if the amount of sizing increases, the amount of formaldehyde released will also increase, which seriously damages the health of consumers.

Method used

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  • Anti-exposure eucalyptus laminated wood veneer and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Manually select eucalyptus veneers of the same size, apply urea-formaldehyde resin adhesive, the amount of glue is 300g / ㎡, and form 5 layers of blanks. The first cold pressing is at room temperature and the pressure is 1.5MPa. Hot pressing, the temperature is 115-120 °C, and the pressure is 2 MPa; 60-80 °C constant temperature room for 5-8 hours; the constant temperature room is ventilated and naturally cooled, heat dissipation for 3-4 hours; the second cold pressing, the temperature is room temperature, The pressure is 1.5MPa, the second hot pressing, the temperature is 110-115°C, and the pressure is 2MPa; the second time is to keep in a constant temperature room, the temperature is 60-80°C, the time is 90-120min, and the constant temperature room is ventilated and cooled naturally , heat dissipation and health preservation for 3 to 4 hours; the third cold pressing, the temperature is normal temperature, and the pressure is 1.5MPa, the third hot pressing, the temperatur...

Embodiment 2

[0017] Manually select eucalyptus veneers of the same size, apply urea-formaldehyde resin adhesive purchased on the market, the glue amount is 250g / ㎡, and form 9 layers of blanks. The first cold pressing is at room temperature and the pressure is 1.8MPa. , the first hot pressing, the temperature is 115-120°C, and the pressure is 2.5MPa; 60-80°C constant temperature room for 5-8 hours; the constant temperature room is ventilated and naturally cooled, heat dissipation for 3-4 hours; the second cold pressing , the temperature is normal temperature, the pressure is 1.8MPa, the second hot pressing, the temperature is 110-115°C, and the pressure is 2.5MPa; the second time is to keep in a constant temperature room, the temperature is 60-80°C, and the time is 90-120min , the constant temperature room is ventilated to cool down naturally, heat dissipation and health preservation for 3-4 hours; the third cold pressing is at room temperature and the pressure is 1.8MPa, the third hot press...

Embodiment 3

[0019] Manually select eucalyptus veneers of the same size, apply urea-formaldehyde resin adhesive purchased on the market, the glue amount is 200g / ㎡, 15 layers of blanks are assembled, the first cold pressing is at room temperature, and the pressure is 2.0MPa , the first hot pressing, the temperature is 115-120°C, and the pressure is 3MPa; the 60-80°C constant temperature room is kept for 5-8 hours; The temperature is normal temperature, the pressure is 2.0MPa, the second hot pressing, the temperature is 110-115°C, and the pressure is 3MPa; the second time is to keep in a constant temperature room, the temperature is 60-80°C, the time is 90-120min, and the temperature is constant. The room is ventilated to cool down naturally, heat dissipation and health preservation for 3-4 hours; the third cold pressing is at room temperature and the pressure is 2.0MPa, the third hot pressing is at 120-125°C and the pressure is 3MPa, and it is polished with coarse sand and fine sandpaper Th...

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Abstract

The invention provides a production method of an anti-exposure eucalyptus laminated wood veneer. The artificial board is composed of a base material, softwood and melamine impregnated paper or aluminum oxide abrasion-resistant paper, wherein the base material is formed by bonding 3-15 layers of eucalyptus veneers through adhesives, the softwood is bonded on two sides of the base material, and the melamine impregnated paper or the aluminum oxide abrasion-resistant paper is pasted onto the surface of the softwood. The production method comprises the steps of veneer sorting, gluing, cold pressing, hot pressing, stacking maintenance, pasting of the softwood and pasting of the melamine impregnated paper or the aluminum oxide abrasion-resistant paper. The production method is characterized in that the base material is produced through three times of cold pressing and hot pressing, two times of thermostatic chamber standing maintenance and cooling maintenance processes; and the softwood is pasted onto the two sides of the base material. The anti-exposure eucalyptus laminated wood veneer is used for manufacturing furniture or wood floors and has the advantage that the wood veneer does not bulge and deform after exposed for a long time.

Description

technical field [0001] The invention relates to a wood-based panel and a production method thereof, in particular to an anti-exposure eucalyptus laminated veneer and a production method thereof. Background technique [0002] Eucalyptus is the general name of Eucalyptus plants of Myrtaceae Myrtaceae. Eucalyptus has strong adaptability, can grow in poor soil, and has fast growth rate and low maintenance cost, so the planting area is increasing year by year. Eucalyptus wood is red, shiny, no special smell, interlaced texture, dense structure, hard and heavy material, easy to bend. Eucalyptus trees with larger diameters are cut into veneers and used as core boards to produce plywood or laminated veneer lumber, while eucalyptus trees with small diameters, branches, or difficult to be peeled are processed into wood chips for papermaking or fiberboard production. Therefore, eucalyptus The comprehensive utilization rate can be increased to more than 90%. In recent years, my countr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/08B27D1/04
Inventor 肖文飞王飞虎谢振能邓梅芳朱忠华李同雨
Owner 莫明鑫
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