Method for producing high-temperature-resisting oriented particle board by using total-eucalyptus leftover material

A technology of oriented particle board and leftover material, which is applied in the jointing of wooden veneers, pretreatment of molding materials, wood processing equipment, etc., can solve the problems of unseen production of high temperature resistant function oriented particle board, life and production troubles, economic losses, etc. Achieve the effects of reducing free formaldehyde content, white color, and improving aging resistance

Active Publication Date: 2017-01-11
广西横县新威林板业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] The oriented strand board disclosed in the above-mentioned literature discloses the method of pressing the oriented strand board into oriented strand board by using the remaining rotary cut veneer scraps in the plywood production process as raw materials or the broken veneer strips produced during the production of plywood as raw materials, but there is no use of fast-growing eucalyptus board The leftover wood in the production process is used as the raw material

Method used

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  • Method for producing high-temperature-resisting oriented particle board by using total-eucalyptus leftover material

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Effect test

Embodiment 1

[0072] The method for producing high temperature resistant oriented strand board from whole eucalyptus wood scraps comprises the following steps:

[0073] 1) The leftovers from the production of eucalyptus boards are separated from metal and stone, chipped, and simply screened, and then sent to the wood chip storage warehouse for transitional storage, and then sent to the veneer longitudinal shearing machine for length slicing by a conveyor, and the above-mentioned leftovers are cut along the longitudinal direction Cut into shavings with a length of 50-80 mm; transport the length-cut shavings to the veneer transverse shearing machine for width slicing, and cut the shavings into 5-20 mm wide shavings along the transverse direction; Transitional storage in the wet shavings silo; the moisture content of the wet shavings should be kept below 20% by weight;

[0074] The leftover material of above-mentioned production eucalyptus plank is the waste material that can not be utilized i...

Embodiment 2

[0099] The method for producing high temperature resistant oriented strand board from whole eucalyptus wood scraps comprises the following steps:

[0100] 1) The leftovers from the production of eucalyptus boards are separated from metal and stone, chipped, and simply screened, and then sent to the wood chip storage warehouse for transitional storage, and then sent to the veneer longitudinal shearing machine for length slicing by a conveyor, and the above-mentioned leftovers are cut along the longitudinal direction Cut into shavings with a length of 50-80 mm; transport the length-cut shavings to the veneer transverse shearing machine for width slicing, and cut the shavings into 5-20 mm wide shavings along the transverse direction; Transitional storage in the wet shavings silo; the moisture content of the wet shavings should be kept below 20% by weight;

[0101] The leftover material of above-mentioned production eucalyptus plank is the waste material that can not be utilized i...

Embodiment 3

[0126] The method for producing high temperature resistant oriented strand board from whole eucalyptus wood scraps comprises the following steps:

[0127] 1) The leftovers from the production of eucalyptus boards are separated from metal and stone, chipped, and simply screened, and then sent to the wood chip storage warehouse for transitional storage, and then sent to the veneer longitudinal shearing machine for length slicing by a conveyor, and the above-mentioned leftovers are cut along the longitudinal direction Cut into shavings with a length of 50-80 mm; transport the length-cut shavings to the veneer transverse shearing machine for width slicing, and cut the shavings into 5-20 mm wide shavings along the transverse direction; Transitional storage in the wet shavings silo; the moisture content of the wet shavings should be kept below 20% by weight;

[0128] The leftover material of above-mentioned production eucalyptus plank is the waste material that can not be utilized i...

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Abstract

The invention provides a method for producing a high-temperature-resisting oriented particle board by using a total-eucalyptus leftover material. The method comprises the steps of material preparation, drying, debarking, impurity removing, sorting, storage, respective gluing of a surface layer and a core layer, classified paving, pre-hot-pressing molding, sanding of an overcoating and the like, wherein the surface layer is coated with an isocyanate sawdust powder composite adhesive; the core layer is coated with a high-temperature-resisting composite urea resin adhesive; the core layer wood shaving is of a three-layer structure which comprises a core layer middle layer, a core layer upper surface layer and a core layer lower surface layer; the core layer middle layer is paved longitudinally; the core layer upper surface layer, the core layer lower surface layer and the surface layer are paved horizontally. The oriented particle board prepared by the method provided by the invention is 31MPa to 40MPa in parallel static bending intensity, 4605MPa to 4776MPa in parallel elasticity modulus, 1501MPa to 1770MPa in vertical elasticity modulus, 10% to 18% in thickness swelling rate of 24-h water absorption and as high as 89009N in vertical nail-holding power, and is good in dimensional stability and reliability. Moreover, the oriented particle board prepared by the method provided by the invention is also excellent in heat resistance.

Description

technical field [0001] The invention belongs to the field of wood-based panel manufacturing, in particular to a method for producing high-temperature-resistant oriented particle boards from whole eucalyptus wood scraps. Background technique [0002] Oriented strand board is one of the new varieties of particle board. When the shavings are paved and formed, the upper and lower surface layers of the oriented strand board will arrange the rubber-mixed shavings longitudinally according to the fiber direction, and the core layer shavings will be arranged horizontally to form a three-layer structure board embryo, which is then hot-pressed into an oriented strand board. The particle shape of this particle board requires a larger aspect ratio, and the thickness is slightly thicker than that of ordinary particle board. [0003] Oriented strand board is a log that is peeled and cut into slices with a certain geometric shape along the direction of the wood grain. The size of the slice...

Claims

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Application Information

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IPC IPC(8): B27N3/10B27D1/04B27L11/02B27N1/00B27N1/02B27N3/00B27N3/14B27N3/18C09J11/04C09J11/06C09J11/08C09J161/32
CPCB27D1/04B27L11/02B27N1/00B27N1/02B27N3/00B27N3/10B27N3/14B27N3/18C09J11/04C09J11/06C09J11/08C09J161/32
Inventor 陈正照
Owner 广西横县新威林板业有限公司
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