CN201970376U

CN201970376U - Oriented bamboo particle board

Info

Publication number: CN201970376U
Application number: CN2011200221646U
Authority: CN
Inventors: 张士元; 邓玉庭; 张方文
Original assignee: Beijing New Building Material Group Co Ltd
Current assignee: Beijing New Building Material Group Co Ltd
Priority date: 2011-01-24
Filing date: 2011-01-24
Publication date: 2011-09-14
Anticipated expiration: 2021-01-24

Abstract

The utility model discloses an oriented bamboo particle board which comprises lateral oriented paving layers and longitudinal oriented paving layers, wherein the lateral oriented paving layers and the longitudinal oriented paving layers are sequentially crossed and overlapped and glued together through hot pressing. The oriented bamboo particle board is characterized in that the lateral oriented paving layers and the longitudinal oriented paving layers are respectively formed through the oriented paving of bamboo splits, and the bamboo splits are formed by cutting bamboo materials along the chordwise direction or the basically chordwise direction. Chordwise shavings or basically chordwise shavings are adopted to form the bamboo splits used as oriented paving materials, the bamboo splits are wide, and the biggest width can reach 60mm. The bamboo splits cannot be easily broken, the flattening property is good, glue is easy to apply, and the quantity of applied glue is small. Besides, dynamic property detection shows that the dynamic strength of the oriented bamboo particle board produced by the chordwise shavings is about 50-60% higher than that of the radially oriented bamboo particle board.

Description

A kind of bamboo wood oriented wood chipboard

Technical field

The utility model belongs to wood-based plate and technical field of composite materials, relates in particular to a kind of bamboo wood oriented wood chipboard.

Background technology

Wooden OSB (Oriented Strand Board, oriented wood chipboard) be to utilize the crisscross a kind of wood-based plate of mating formation of banded wood chip, its physical property is considerably beyond ordinary particle board and MDF (medium density fibre board (MDF)), on a lot of purposes, can substitute multi-plywood, be widely used in industries such as building, decoration and car and boat manufacturing.

Can substitute the raw material of timber as oriented wood chipboard in order can further to seek, the someone attempts adopting bamboo wood to produce oriented wood chipboard.Patent application 200610114384.5 " manufacture method of directional bamboo structure board " discloses a kind of method that adopts bamboo wood to produce oriented wood chipboard, this method adopts is along the radially or substantially radially flaking of bamboo wood or chips, and mainly there are the following problems:

(1) characteristics of bamboo wood itself are exactly the thin hollow of wall, are different from timber, and it does not have horizontal parenchymal tissue, and the method for utilization manufacturing wooden plane sheet is made the bamboo flake and is not suitable for, and the suitability for industrialized production difficulty is very big;

(2) this application adopted along bamboo wood radially or the method for mode flaking substantially radially obtain flake, ignored the different characteristics of growth stress of cylinder bamboo wood, the large stretch of flaking of the bamboo of the manufacturing cracking that easily curls, flattening property is poor, the applying glue difficulty is big;

(3) the bamboo flake by this application manufacturing exists bamboo fiber short, and the characteristics that fracture is many make the bamboo flake mechanical strength of elementary cell form reduce, and global formation sheet material physical and mechanical property is not ideal enough.

The utility model content

At the problem that prior art exists, the bamboo wood oriented wood chipboard that provides a kind of elastic modelling quantity higher is provided the purpose of this utility model.

A kind of bamboo wood oriented wood chipboard of the present utility model comprises: mat formation layer and portrait orientation of transversal orientation mat formation layer and the portrait orientation layer of mating formation, described transversal orientation mated formation and layer interlocked stacked successively and be in the same place by hot-press gluing; Wherein, described transversal orientation layer and the portrait orientation layer of mating formation of mating formation forms by the thin bamboo strips used for weaving orienting spreading respectively, and described thin bamboo strips used for weaving is a mao bamboon along chordwise direction or the thin bamboo strips used for weaving that cuts open of chordwise direction substantially.

Preferably, the width of described thin bamboo strips used for weaving is 20～60mm.

The utlity model has following advantage:

1) adopt the tangential or tangential substantially thin bamboo strips used for weaving that is formed for the orienting spreading material, wider width not only, maximum can reach 60mm, and thin bamboo strips used for weaving is difficult for brokenly, and flattening property is good, is easy to applying glue, and resin added is little;

2) adopt the surperficial flaking of bamboo wood oriented wood chipboard (Oriented BambooStrand Board is called for short OBSB) of tangential or tangential substantially orienting spreading evenly directed, very obvious;

3) detect through mechanical property, bamboo wood oriented wood chipboard (OBSB) the mechanical strength specific diameter that tangential flaking is produced is high by about 50～60% to bamboo matter oriented wood chipboard, and mechanical property is more outstanding;

4) can realize that industrialization produces continuously, replace the bamboo plywood production that falls behind.

Description of drawings

Fig. 1 is the preparation process schematic diagram of the utility model thin bamboo strips used for weaving;

Fig. 2 is the utility model bamboo wood oriented wood chipboard structural representation.

The specific embodiment

As shown in Figure 1, bamboo wood oriented wood chipboard of the present utility model specifically prepares as follows:

Step 1, with mao bamboon 1 segment, and according to diameter respectively splitting become the thick bamboo sheet section of 3～12 five equilibriums, thereby form the trapezoidal bamboo base 2 of circular arc, bamboo base 2 arc chord lengths 20～60mm;

Step 2, bamboo base 2 is entered thicknesser equipment remove the surf green tabasheer, form force plane bamboo chip 3;

Step 3, cut open into some thin bamboo strips used for weavings 4 by cuing open the force plane bamboo chip 3 that thin bamboo strip equipment will remove the surf green tabasheer along chordwise direction or basic chordwise direction, the width of thin bamboo strips used for weaving 4 is at 5～60mm, and preferably at 20～60mm, and width is wide more, helps orienting spreading more; In addition, the length of thin bamboo strips used for weaving 4 can be controlled at 50～3000mm, and THICKNESS CONTROL is at 0.1～3.0mm.If the length of thin bamboo strips used for weaving 4 is longer, can further thin bamboo strips used for weaving 4 ripsaws be become the thin bamboo strips used for weaving of moderate length, for example, length can be controlled at 50-500mm, be beneficial to mat formation;

Step 4, thin bamboo strips used for weaving 4 is dried to absolute drift 1～10% after, carry out top sizing;

Step 5, orienting spreading, the form that adopts longitudinal layer and transverse layers layering to mat formation is formed slab, at last slab is put into hot press and is solidified into sheet forming, thereby make bamboo wood oriented wood chipboard of the present utility model.

By the prepared bamboo wood oriented wood chipboard of the utility model preparation method as shown in Figure 2, comprise: transversal orientation layer 10 and the portrait orientation layer 11 of mating formation of mating formation, transversal orientation layer 10 and the portrait orientation layer 11 of mating formation of mating formation is staggered successively stacked and be in the same place by hot-press gluing; Transversal orientation layer 10 and the portrait orientation layer 11 of mating formation of mating formation forms by the thin bamboo strips used for weaving orienting spreading respectively, and the thin bamboo strips used for weaving here promptly is the thin bamboo strips used for weaving that makes by above-mentioned steps.

Detect through mechanical property, bamboo wood oriented wood chipboard (BOSB) the mechanical strength specific diameter that the tangential flaking of the utility model is produced is high by about 50～60% to bamboo matter oriented wood chipboard.

Claims

1. bamboo wood oriented wood chipboard comprises: mat formation layer and portrait orientation of transversal orientation layer and the portrait orientation layer of mating formation of mating formation, described transversal orientation mated formation and layer interlocked stacked successively and be in the same place by hot-press gluing; It is characterized in that described transversal orientation layer and the portrait orientation layer of mating formation of mating formation forms by the thin bamboo strips used for weaving orienting spreading respectively, described thin bamboo strips used for weaving is a mao bamboon along chordwise direction or the thin bamboo strips used for weaving that cuts open of chordwise direction substantially.

2. bamboo wood oriented wood chipboard as claimed in claim 1 is characterized in that, the width of described thin bamboo strips used for weaving is 20～60mm.