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Manufacturing method of bamboo-Chinese fir composite plate

A composite board and manufacturing method technology, applied in the direction of manufacturing tools, pretreatment of molding materials, wood treatment, etc., can solve the problems of board static bending strength, low bonding strength, high water absorption thickness expansion rate, dimensional instability, etc., to achieve Good dimensional stability, improved utilization rate, and less glue consumption

Inactive Publication Date: 2011-04-06
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the bamboo shavings in the factory are not only cut off most of the fibers, but also contain bamboo green and bamboo yellow that are difficult to glue together, the static bending strength and bonding strength of the boards made are relatively low; small, large glue consumption
[0007] In addition, in the prior art, shaving boards made of fir wood boards and bamboo processing residues have the disadvantages of high water absorption thickness expansion rate and unstable dimensions.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1, this example method comprises the following steps:

[0025] (1) Chipping: the fir wood slabs (those containing more bark need to be peeled) are planed and processed into thin long-flaky fir shavings with a long wood planer, the length of the shavings is 80mm, and the width is 8mm. The thickness is 0.2mm. This shape can greatly improve the utilization rate of fir and increase the strength of the board; laying it on the surface of the board can make the board surface more smooth.

[0026] (2) Preliminary selection of shavings: Thin long flaky fir shavings and factory bamboo shavings are added to a circular sieve for primary screening to remove dust, granular bamboo chips and granular fir shavings. This process can reduce the amount of sizing, reduce the shape difference between the shavings, and make the density distribution of the board even.

[0027] (3) Spray steaming treatment of Chinese fir shavings: put thin long flaky Chinese fir shavings into a clo...

Embodiment 2

[0036] Embodiment 2, this example method comprises the following steps:

[0037] (1) Chipping: the Chinese fir wood slabs (those with more bark need to be peeled) are planed and processed into thin long-flaky Chinese fir shavings with a long wood planer. The length of the shavings is 110mm and the width is 15mm. The thickness is 0.5mm.

[0038] (2) Preliminary selection of shavings: Thin long flaky fir shavings and factory bamboo shavings are added to a circular sieve for primary screening to remove dust, granular bamboo chips and granular fir shavings.

[0039] (3) Spray steaming treatment of Chinese fir shavings: put thin long flaky Chinese fir shavings into a closed steam treatment tank, and steam them with steam at about 160°C for 7 minutes.

[0040] (4) Bamboo shavings boiled in water: put the bamboo shavings in the boiling pool, add cold water, let the water submerge the bamboo shavings, then quickly heat up to 100°C, boil the bamboo shavings at 100°C, and boil for 30 m...

Embodiment 3

[0048] Embodiment 3, this example method comprises the following steps:

[0049] (1) Chipping: the Chinese fir wood slabs (those containing more bark need to be peeled) are planed and processed into thin long-flaky Chinese fir shavings with a long planer, the length of the shavings is 95mm, and the width is 12mm. The thickness is 0.3mm.

[0050] (2) Preliminary selection of shavings: Thin long flaky fir shavings and factory bamboo shavings are added to a circular sieve for primary screening to remove dust, granular bamboo chips and granular fir shavings.

[0051] (3) Spray steaming treatment of Chinese fir shavings: put thin long flaky Chinese fir shavings into a closed steam treatment tank, and steam them with steam at about 150°C for 5 minutes.

[0052] (4) Bamboo shavings boiled in water: put the bamboo shavings in the boiling pool, add cold water, let the water submerge the bamboo shavings, then quickly heat up to 100°C, boil the bamboo shavings at 100°C, and boil for 25 ...

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Abstract

The invention relates to a manufacturing method of a bamboo-Chinese fir composite plate, in particular to solving the technical problem of providing a manufacturing method of a bamboo-Chinese fir composite plate by comprehensively and efficiently utilizing Chinese fir slabs and bamboo processing residues. The method aims at improving the utilization rate of the bamboos and wood and the composite plate has the characteristics of flat plate surface, high strength, little glue mount and good dimensional stability. The technical scheme for solving the problem is as follows: the method comprises the following steps: (1) splicing; (2) flaking and first sorting; (3) Chinese fir flaking and steam-injecting; (4) bamboo flaking and poaching; (5) drying; (6) flaking and sorting; (7) glue blending; (8) paving; (9) prepressing; (10) hot pressing; and (11) post treatment. The method is suitable for such fields as furniture manufacturing, indoor decoration and the like.

Description

technical field [0001] The invention relates to a method for manufacturing bamboo fir composite boards. It is suitable for furniture manufacturing, interior decoration and other fields. Background technique [0002] Chinese fir is one of the most important fast-growing timber tree species in China, ranking first in the country's coniferous plantations in both area and stock volume. At present, as the application field of fir is gradually replaced by new building materials, its demand has dropped sharply, resulting in a large backlog. Although it has been applied in the production of blockboard core boards and laminated materials, the utilization rate of wood does not exceed 50%. A large amount of timber slabs produced in the forest have been gathered in various processing enterprises, but they have not been processed and utilized well so far, which has greatly wasted the Chinese fir resources. Therefore, there is an urgent need to develop and utilize fir wood slabs. [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/02B27N1/00B27N1/02B27N3/08B27N3/14B27N3/10B27N3/18B27L11/02B27K5/04C09J161/24C09J11/06C09J9/00
Inventor 杜春贵金春德
Owner ZHEJIANG FORESTRY UNIVERSITY