Wood-wool, fibre board and method for making same

A wood wool board and wood wool technology, which is applied to flat products, manufacturing tools, and other household appliances, can solve the problems of insufficient rigidity of wood wool, twisting, and poor strength of wood wool boards, so as to overcome the defects of weather resistance and reduce cost, the effect of overcoming deformation

Inactive Publication Date: 2008-11-05
BEIJING FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in the process of veneer processing in my country, veneer processing factories in China usually select high-grade logs with better material than processing materials, and the best part of the log is the sapwood part, which can be processed into veneer by rotary cutting. 30% of the sapwood shredded veneers processed in the garden or sliced ​​back to the square, that is to say, nearly 30% of the log sapwood with good quality has become waste and has not been well utilized. These wastes are mainly used The boiler fuel used in the factory was burned as cheap fuel, which caused a huge waste of high-grade logs with good materials
[0003] On the other hand, the existing wood wool board has the problem of poor board performance due to the poor quality of the

Method used

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  • Wood-wool, fibre board and method for making same
  • Wood-wool, fibre board and method for making same
  • Wood-wool, fibre board and method for making same

Examples

Experimental program
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Effect test

Example Embodiment

[0038] Example 1

[0039] The raw materials for the preparation of wood wool are from veneer scraps of birch trees that are processed by peeling and rounding or slicing and rounding. The size of birch veneer fragments is: thickness 0.2-3mm; width 20-300mm; length over 100mm; moisture content: 5-30%.

[0040]Veneer scrap can also choose poplar veneer scrap, willow veneer scrap, pine veneer scrap, and various veneer scraps produced by wood-based veneer processing enterprises.

[0041] The process of preparing the wood wool fiber of the present invention will be described in detail below with reference to the drawings.

[0042] As shown in Figure 1, the wood wool production equipment includes a casing 8, a feeding device 1, a discharging device 3, a motor 4 and an upper combing roller 2, a lower combing roller 5, and an upper combing roller 2 driven by the motor 4 The lower combing roller 5 and the motor 4 are arranged in the casing 8.

[0043] Among them, the pair of combing rollers...

Example Embodiment

[0075] Example 2

[0076] The axial width of the annular roller knife on the carding roll is 5mm, and the width of the birch wood fiber prepared after carding is 5mm. Otherwise, it is the same as the first embodiment.

[0077] The process of preparing wood wool board using wood wool fiber of the present invention is described below.

[0078] 1) Wood wool fiber paving and first pre-compression

[0079] Spread birch wood filament fibers evenly along the fiber direction, and then keep the thickness of the paving slab constant, apply pressure from the width direction to the side, and carry out the limit pre-compression in the thickness direction.

[0080] The control preload pressure is 0.4MPa, the temperature is 35°C, and the time is 30s / mm (thickness of the finished plate).

[0081] 2) Slab sizing

[0082] Dilute the urea-formaldehyde resin glue with a solid content of 52% by 40 times, and then immerse the slab after the first pre-compression into the glue tank, and the sizing amoun...

Example Embodiment

[0096] Example 3

[0097] The axial width of the ring roller knife on the carding roll is 1mm, and the width of the birch wood fiber prepared after carding is 1mm. Otherwise, it is the same as the first embodiment.

[0098] The process of preparing wood wool board using wood wool fiber of the present invention is described below.

[0099] 1) Wood wool fiber paving and first pre-compression

[0100] Spread long birch wood filament fibers uniformly along the fiber direction, and then keep the thickness of the paving slab constant, apply pressure from the width direction to the side, and carry out the limit pre-compression in the thickness direction.

[0101] Control the preload pressure to 0.6MPa, the temperature to 35°C, and the time to be 10s / mm (thickness of the finished plate).

[0102] 2) Slab sizing

[0103] Dilute the urea-formaldehyde resin glue with a solid content of 52% by 30 times, and then immerse the slab after the first pre-compression into the glue tank, and the sizi...

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Abstract

The invention discloses wood-wool, a wood-wool plate and a preparation method thereof. The wood-wool plate comprises wood-wools formed by untwining in the fibre direction; furthermore, the wood-wools are arranged along the fibre direction. Compared with the existing general wood-wool plate, the wood-wool plate prepared by the method of the invention uses generally abandoned single-plate edge angle waste material as raw material and greatly reduces the cost of the wood-wool plate; the usage performance of the prepared wood-wool plate complies with the requirement of the positioning structure wood-wool plate standard (LY/T1580-2000); the wood-wool plate prepared in the fibre direction is equivalent to the solid wood plate on sensing and performance and overcomes the defects of the solid wood plate such as deformation and weather resistant.

Description

technical field [0001] The invention relates to a wood wool, a wood wool board and a preparation method thereof, in particular to a wood wool, a wood wool board prepared from veneer processing waste and a preparation method thereof. Background technique [0002] At present, in the process of veneer processing in my country, the veneer processing factories in China usually select high-grade logs with better material than processing materials, and the best part of the log is the sapwood part, and the logs that can be processed into veneers are rotary cut. 30% of the sapwood shredded veneer processed from gardening or planing and returning to the square, that is to say, nearly 30% of the log sapwood with good quality has become waste and has not been well utilized. These wastes are mainly used The boiler fuel in the factory was burned as cheap fuel, which caused a huge waste of high-grade logs with good materials. [0003] On the other hand, the existing wood wool board has the ...

Claims

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Application Information

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IPC IPC(8): B27L11/04B27N3/04B27N3/08
Inventor 母军孙波李建章于志明张德荣
Owner BEIJING FORESTRY UNIVERSITY
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