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Surface-decorated oriented strand board and preparation process thereof

A technology of oriented strand board and preparation process, which is applied in the field of particle board, can solve the problems that the surface layer of oriented strand board cannot meet the dense and delicate quality requirements, and cannot reduce costs, etc., and achieves the effects of low water absorption thickness expansion rate, reduced raw material cost, and environmental protection

Active Publication Date: 2015-05-20
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

This production method still uses common raw materials, and the source of core raw materials is still small-diameter grades, which cannot reduce costs
The raw material of ordinary particleboard is used for the surface layer, and raw material preparation is still required, and the use of shavings as raw material cannot meet the dense and delicate quality requirements of the surface layer of oriented strand board

Method used

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  • Surface-decorated oriented strand board and preparation process thereof
  • Surface-decorated oriented strand board and preparation process thereof
  • Surface-decorated oriented strand board and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1, a decorative oriented strand board, including a core layer and a surface layer, the surface layer includes an upper surface layer and a lower surface layer, the upper surface layer is connected to the upper surface of the core layer, and the lower surface layer is connected to the lower surface of the core layer.

[0041] The shavings of the core layer are arranged horizontally, the shavings of the surface layer are arranged vertically, and the shavings of the surface layer and the core layer form an orientation angle of 60°-90°.

[0042]The core layer accounts for 70%-80% of the total thickness of the oriented strand board, and the surface layer accounts for 30%-20% of the total thickness of the oriented strand board.

[0043] The preparation technology of described oriented strand board comprises the following steps:

[0044] 1) Raw material preparation.

[0045] (1) Preparation of core layer raw materials.

[0046] The remaining rotary-cut veneer scra...

Embodiment 2

[0068] Embodiment 2, a facing oriented strand board, includes a core layer and a surface layer, the surface layer includes an upper surface layer and a lower surface layer, the upper surface layer is connected to the upper surface of the core layer, and the lower surface layer is connected to the lower surface of the core layer.

[0069] The shavings of the core layer are arranged horizontally, the shavings of the surface layer are arranged vertically, and the shavings of the surface layer and the core layer form an orientation angle of 60°-90°.

[0070] The core layer accounts for 70%-80% of the total thickness of the oriented strand board, and the surface layer accounts for 30%-20% of the total thickness of the oriented strand board.

[0071] The preparation technology of described oriented strand board comprises the following steps:

[0072] 1) Raw material preparation.

[0073] (1) Preparation of core layer raw materials.

[0074] The remaining rotary-cut veneer scraps i...

Embodiment 3

[0096] Embodiment 3, a decorative oriented strand board, including a core layer and a surface layer, the surface layer includes an upper surface layer and a lower surface layer, the upper surface layer is connected to the upper surface of the core layer, and the lower surface layer is connected to the lower surface of the core layer.

[0097] The shavings of the core layer are arranged horizontally, the shavings of the surface layer are arranged vertically, and the shavings of the surface layer and the core layer form an orientation angle of 60°-90°.

[0098] The core layer accounts for 70%-80% of the total thickness of the oriented strand board, and the surface layer accounts for 30%-20% of the total thickness of the oriented strand board.

[0099] The preparation technology of described oriented strand board comprises the following steps:

[0100] 1) Raw material preparation.

[0101] (1) Preparation of core layer raw materials.

[0102] The remaining rotary-cut veneer scr...

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Abstract

The invention relates to a surface-decorated oriented strand board and a preparation process of the surface-decorated oriented strand board. The surface-decorated oriented strand board comprises a core layer and a surface layer. Rotary cut veneer leftovers left in the plywood production process are selected as raw materials of the core layer. Sawdust, wood shavings, waste fibers and sanding powder produced in the production process of glued-laminated timber, core-boards, particle boards or medium-density fiberboards are selected as raw materials of the surface layer. The raw materials are subjected to drying, screening, gluing, laying, plate blank sawing and cutting and hot-pressing, and then the surface-decorated oriented strand board can be manufactured. The static bending strength of the oriented strand board in the parallel direction can reach 22-30 MPa, the elasticity modulus of the oriented strand board can reach 3500-4800 MPa, and the surface roughness of the oriented strand board is less than 0.8 micron. The surface-decorated oriented strand board can be directly processed into a decorative surface and can also be widely used for replacing artificial boards such as plywood, the core-boards, the particle boards and the medium-density fiberboards.

Description

technical field [0001] The invention relates to a particle board and its preparation process, which is suitable for oriented particle board, especially for oriented particle board which requires high fineness of the surface layer, in particular, relates to a decorative oriented particle board and its preparation process, which belongs to particle board technology field. 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] Ori...

Claims

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Application Information

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IPC IPC(8): B27D1/04B27D1/08B32B21/02B32B37/12B32B37/06B32B37/10
CPCB27N3/143B27N3/203B32B21/02B32B37/1284
Inventor 钟笃章国智武
Owner 寿光市鲁丽木业股份有限公司
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