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Aldehyde-free face decorating all-bamboo or bamboo-wood composite oriented strand board and manufacturing method thereof

A technology of oriented strand board and manufacturing method, applied in the direction of manufacturing tools, flat products, other household appliances, etc., can solve the problems of poor surface forming, sticking to steel belts on the board surface, and inability to convey, so as to reduce production costs and solve the problems of board surface sticking. Steel strips, the effect of increasing the range of applications

Inactive Publication Date: 2019-04-16
NANNING KETIAN SHUIXING TECH LTD CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the above-mentioned problems of the existing particleboard, and proposes a formaldehyde-free veneerable full bamboo or bamboo-wood composite oriented strandboard and its manufacturing method. The present invention solves the shortage of raw materials for particleboard production, reduces production costs, and realizes zero formaldehyde Discharge, solve the problem that the surface layer is poorly formed and cannot be transported in the production of formaldehyde-free boards, and at the same time solve the problem of sticking steel strips on the board surface when the slab is hot-pressed

Method used

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  • Aldehyde-free face decorating all-bamboo or bamboo-wood composite oriented strand board and manufacturing method thereof
  • Aldehyde-free face decorating all-bamboo or bamboo-wood composite oriented strand board and manufacturing method thereof
  • Aldehyde-free face decorating all-bamboo or bamboo-wood composite oriented strand board and manufacturing method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0028] The steps of the production method of the aldehyde-free veneerable bamboo-wood composite oriented strand board of the present invention are as follows:

[0029] (1) Cut the bamboo into 150mm length bamboo chips, cut the wood into 100mm length wood chips, and screen out the bamboo chips and wood chips with a length less than 50mm;

[0030] (2) Slicing the bamboo chips and wood chips greater than 50 mm obtained in step (1) into bamboo and wood chips with a thickness of 0.5 mm;

[0031] (3) Slicing the bamboo chips and wood chips less than 50mm screened out in step (1) into bamboo and wood shavings with a thickness of 0.5mm;

[0032] (4) Bamboo, wood flakes and shavings obtained in steps (2) and (3) are dried to a relative moisture content of 3.5% through a single-channel flue gas dryer;

[0033] (5) The dried material in step (4) is screened in a vibrating screen and a pneumatic air separation system, and divided into four parts: oversized material, large piece material,...

Embodiment 2

[0039] The steps of the production method of the whole bamboo oriented strand board without aldehydes of the present invention that can be decorated are as follows:

[0040] (1) Cut the bamboo into pieces with a length of 100mm, and screen out the pieces with a length of less than 50mm;

[0041] (2) Slicing the bamboo slices greater than 50mm obtained in step (1) into bamboo flakes with a thickness of 1mm;

[0042] (3) Slicing the bamboo flakes less than 50mm screened out in step (1) into bamboo shavings with a thickness of 1mm;

[0043] (4) The large bamboo flakes and shavings obtained in steps (2) and (3) are dried to a relative moisture content of 4% through a single-channel flue gas dryer;

[0044] (5) Screen the dried materials in step (4) according to the number of meshes, and divide them into four parts: oversized material, large piece material, fine material and dust;

[0045] (6) Break up 250 g of the oversized material obtained in step (5) as the surface material; ...

Embodiment 3

[0050] The steps of the production method of the aldehyde-free veneerable bamboo-wood composite oriented strand board of the present invention are as follows:

[0051] (1) Cut the bamboo into 80mm length bamboo chips, cut the wood into 120mm length wood chips, and screen out the bamboo chips and wood chips whose length is less than 50mm;

[0052] (2) Slicing the bamboo chips and wood chips greater than 50 mm obtained in step (1) into bamboo and wood chips with a thickness of 0.8 mm;

[0053] (3) Slicing the bamboo chips and wood chips less than 50mm screened out in step (1) into bamboo and wood shavings with a thickness of 0.8mm;

[0054] (4) Bamboo, wood flakes and shavings obtained in steps (2) and (3) are dried to a relative moisture content of 2% through a single-channel flue gas dryer;

[0055] (5) Screen the dried materials in step (4) according to the number of meshes in the vibrating screen and pneumatic air separation system, and divide them into four parts: oversize...

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Abstract

The invention discloses an aldehyde-free face decorating all-bamboo or bamboo-wood composite oriented strand board and a manufacturing method thereof. In the method, all-bamboo or bamboo-wood composite large sheets and wood shavings are adopted as a core layer, oversized materials and fine materials serve as a surface layer, multi-layer all-bamboo or bamboo-wood composite large sheets are overlapped, the surface is smooth after hot pressing, the face decorating condition is completely achieved, and the problem that an ordinary oriented strand board is rough in surface, and face decorating cannot be achieved is solved. Compared with an all-wood oriented strand board, the performance is more excellent. Bamboo and wood materials are selected as raw materials, the problem that existing strandboard wood raw materials are in shortage is solved, and the production cost is reduced; a large number of bamboo large sheets are used in the production technology, a biomass adhesion agent is used onthe surface layer, and the environment protection concept is sufficiently embodied; and the surface layer is the biomass adhesion agent, the core layer is isocyanate, formaldehyde emission is zero, and harm caused by board formaldehyde emission at present is avoided.

Description

technical field [0001] The invention relates to the technical field of composite wood-based panels, in particular to a formaldehyde-free decorative full bamboo or bamboo-wood composite oriented strand board and a manufacturing method thereof. Background technique [0002] In 2016, my country's particleboard industry showed a blowout-type concentrated investment boom, and funds from all walks of life poured into the particleboard production field. 45 particleboard production lines were newly built nationwide, with a total production capacity of more than 8.6 million m³ / a. The number and production capacity of new particleboard production lines hit a record high. record high. As of the end of 2016, nearly 320 particleboard manufacturers across the country had 337 particleboard production lines, with a total production capacity of 18.81 million m³ / a, distributed in 24 provinces and municipalities. [0003] As of the end of June 2017, according to incomplete statistics, there ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27J1/00B27L11/08B27N1/02B27N3/12B27N3/14B27N3/20
CPCB27J1/00B27L11/08B27N1/02B27N1/029B27N3/12B27N3/143B27N3/203
Inventor 戴家兵杨华永李维虎曾灵杜振飞
Owner NANNING KETIAN SHUIXING TECH LTD CO
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