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Oriented particle board with ultrathin particles on surface layer, and preparation process thereof

A technology of oriented particle board and preparation process, which is applied in the direction of manufacturing tools, flat products, and other household appliances, etc. It can solve the problems that the mechanical properties of the board cannot be improved at the same time, the elastic modulus and internal bonding strength are low, and the surface is uneven, etc., to achieve improved The effect of overall mechanical properties, small density deviation and smooth surface

Inactive Publication Date: 2020-04-03
寿光市鲁丽木业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Among the existing oriented strand boards, there is currently no oriented strand board whose surface layer is ultra-thin large flakes, because the following technical problems cannot be solved: (1) The mechanical properties of the existing oriented strand board cannot be improved at the same time: elastic modulus and internal bonding strength Low; (2) To increase the strength, the density must be increased; (3) The surface is uneven, easy to bubble and burst

Method used

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  • Oriented particle board with ultrathin particles on surface layer, and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1 A kind of surface layer is the oriented strand board and its preparation process of ultra-thin large shavings

[0039] A surface layer of the present invention is an oriented strand board with ultra-thin large flakes of shavings, and its preparation process comprises the following steps: preparation of core layer and subsurface shavings, preparation of surface shavings, raw material drying, raw material screening, sizing, paving, heating pressure and post-processing. details as follows:

[0040] (1) Preparation of core and subsurface shavings:

[0041] The shavings of the core layer and the sub-surface layer are made of rotary-cut waste veneer, branch wood, slab, etc., which are sawn and then passed through a ring planer to make shavings with a length of 60-120 mm, a width of 5-40 mm, and a thickness of 0.5-1.0 mm. , transported to wet shavings silo for storage.

[0042] (2) Preparation of surface shavings:

[0043] The surface shavings are made of smal...

Embodiment 2

[0067] Embodiment 2 A kind of surface layer is the oriented strand board and its preparation process of ultra-thin large shavings

[0068] A surface layer of the present invention is an oriented strand board with ultra-thin large flakes of shavings, and its preparation process comprises the following steps: preparation of core layer and subsurface shavings, preparation of surface shavings, raw material drying, raw material screening, sizing, paving, heating pressure and post-processing. details as follows:

[0069] (1) Preparation of core and subsurface shavings:

[0070] The shavings of the core layer and the sub-surface layer are made of rotary-cut waste veneer, branch wood, slab, etc., which are sawn and then passed through a ring planer to make shavings with a length of 60-120 mm, a width of 5-40 mm, and a thickness of 0.5-1.0 mm. , transported to wet shavings silo for storage.

[0071] (2) Preparation of surface shavings:

[0072] The surface shavings are made of smal...

Embodiment 3

[0096] Embodiment 3 A kind of surface layer is the oriented strand board and its preparation process of ultra-thin large shavings

[0097] A surface layer of the present invention is an oriented strand board with ultra-thin large flakes of shavings, and its preparation process comprises the following steps: preparation of core layer and subsurface shavings, preparation of surface shavings, raw material drying, raw material screening, sizing, paving, heating pressure and post-processing. details as follows:

[0098] (1) Preparation of core and subsurface shavings:

[0099] The shavings of the core layer and the sub-surface layer are made of rotary-cut waste veneer, branch wood, slab, etc., which are sawn and then passed through a ring planer to make shavings with a length of 60-120 mm, a width of 5-40 mm, and a thickness of 0.5-1.0 mm. , transported to wet shavings silo for storage.

[0100] (2) Preparation of surface shavings:

[0101] The surface shavings are made of smal...

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Abstract

The invention provides an oriented particle board with ultrathin particles on a surface layer, and a preparation process thereof. The method comprises the steps of preparing particles on a sandwich layer and a sub-surface layer, preparing particles on the surface layer, drying raw materials, gluing, spreading, hot-pressing and post-processing. The obtained surface layer is the oriented particle board with the ultrathin particles, the overall mechanical property of the board is greatly improved, the density is low, the surface is smooth, the roughness is 0.02 to 0.30 mum, and the internal bondstrength is 2.0 to 2.5MPa; the adopted raw materials are crotches, slab edgings, rotary-cut leftovers and other three residues, so that the comprehensive utilization of resources is promoted, high efficiency and productivity enhancement are realized, and the production cost is reduced by more than 30 percent; the board density is reduced by 10 percent, so that the raw materials are saved; the dimensional stability is good, the water absorption thickness swelling rate is reduced by 20 percent compared with a fiberboard, the processability is good, and the surface can be directly applied to theprocessing of impregnated paper, polyvinyl chloride (PVC), sliced wood veneer and the like; and the oriented particle board is wide in application and can be applied to the decoration of a timber architecture, furniture, floors, container soleplates and the like.

Description

technical field [0001] The invention belongs to the technical field of artificial boards, and relates to an oriented strand board whose surface layer is ultra-thin large shavings, in particular to an oriented strand board whose surface layer is ultra-thin large shavings and a preparation process thereof. 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 glue-mixed shavings longitudinally according to the fiber direction, and the core layer shavings will be arranged horizontally to form a three-layer structure slab, 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. Oriented strand board is small-diameter logs that are peeled and cut into slices with a ce...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27L11/02B27N1/02B27N3/02B27N3/10
CPCB27L11/02B27N1/0209B27N3/02B27N3/10
Inventor 国智武葛立军张芳焕霍子微李晓升杨忠华张军焕张秀南
Owner 寿光市鲁丽木业股份有限公司
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