CN2398067Y

CN2398067Y - Bamboo-wood composite plywood with film covered on surface

Info

Publication number: CN2398067Y
Application number: CN 99247970
Authority: CN
Inventors: 韩健
Original assignee: JUXING INDUSTRIAL Co Ltd SHENZHEN CITY
Current assignee: JUXING INDUSTRIAL Co Ltd SHENZHEN CITY
Priority date: 1999-11-30
Filing date: 1999-11-30
Publication date: 2000-09-27
Anticipated expiration: 2009-11-30

Abstract

The utility model relates to a bamboo-wood composite plywood with film covered on surface. The utility model comprises bamboo-wood composite core materials formed by orderly arranging and conglutinating a long bamboo curtain 4, a wood single-board 5, the long bamboo curtain 4, etc. from inside to outside in a vertical staggered mode in a fibre direction by phenolic resin adhesive of high-performance, wherein the external side of the core materials are orderly conglutinate with a bamboo mat 3 and a wood single-board 2 from inside to outside, and the outermost layer on the external side of the wood single-board 2 is conglutinated with film adhesive paper 1. The bamboo-wood composite plywood has bamboo characteristics of high strength, high hardness, wear-resistance and good impact and compression resistance and wood characteristics of good plasticity, light weight, insect and bacterium prevention and easy processing; in addition, the utility model has extensive source of bamboo and wood raw material, low cost and wide development prospect.

Description

Surface coating bamboo wood composite veneer

The invention belongs to bamboo wood and timber is the composite that primary raw material is made, and is specifically related to a kind of surface coating bamboo wood composite veneer.

Bamboo wood and timber congener fibrous raw material, they can be used for producing wood-based plate.But bamboo wood and timber on interior tissue structure and wood property, exist bigger difference, and its advantage is respectively arranged, and its defective is also respectively arranged.The intensity of bamboo wood is big, hardness is high, wearability is good, but its weight is big, the poor processability of its goods, and is corroded by entomogenous fungi easily; The density of timber is little, in light weight, plasticity is good, the easy sawing of its goods processing, but its intensity low, wear no resistance, anti-extrusion and impact resistance is bad.

The objective of the invention is to deficiency, a kind of bamboo wood and wood gluing plate surface coating bamboo advantage, novel wood composite veneer of collecting is provided at existing bamboo wood and wood gluing plate.

Surface coating bamboo wood composite veneer of the present utility model, it is characterized in that comprising and be followed successively by long bamboo curtain splint, veneer, long bamboo curtain splint from inside to outside ... the bamboo and wood composite core material of arranging and being bonded by the high-performance pnenolic aldehyde resin adhesive by machine direction vertical interlaced mode, outside core, be bonded with bamboo mat, veneer from inside to outside successively, outermost layer outside veneer is bonded with bond paper, described veneer is meant the long 1300-1320mm that is, width is 400-600mm, thickness is 1.0-2.0mm, and moisture content is at the natural or artificial forest sheet material below 15%; Described bamboo curtain splint is with long 1320mm and 2560mm, wide 10-20mm, the bamboo vegetarian of thick 1.1-1.4mm, connect a kind of moisture content of forming with cotton thread or union twist yarn strand at 10～15% bamboo wood construction unit, bamboo mat then is with long 2560mm, wide 1320mm, the bamboo hedge of thick 0.6-0.8mm, weave a kind of moisture content of forming by the mode of " choose two press two " or " choose three and press three " at 10～15% bamboo wood construction unit, described bond paper is meant a kind of water-soluble or pure dissolubility synvaren that fully is impregnated with, spread reaches 80%-110%, and moisture content is at the brown paper below 7%.

By these three kinds of basic structural units of above-mentioned bamboo curtain splint, bamboo mat and veneer being carried out drying, applying glue, assembly and carrying out compoundly with bond paper, can obtain surface coating bamboo wood composite veneer of the present utility model through traditional handicraft processes such as high temperature, HIGH PRESSURE TREATMENT again.

Surface coating bamboo wood composite veneer of the present utility model, the number of plies of long usually bamboo curtain splint and this veneer is many more, and core is thick more, and the product glued board is got over thickness.But in order to guarantee that product after creating and using, buckling deformation can not take place, keep the stability of its size and dimension, preferably follow " symmetry principle " and " odd-level principle " during assembly.

Surface coating bamboo wood composite veneer of the present utility model, the bamboo and wood raw material sources are extensive, especially artificial fast-growing woods timber, cost is very low, has vast potential for future development.And this bamboo wood composite veneer, both had the high strength, high rigidity, high-wearing feature of bamboo wood, good shock resistance and crush resistance, good, in light weight, the anti-entomogenous fungi of the plasticity that has timber simultaneously again, easy machining characteristics.Its Main physical mechanical property can meet or exceed nation-building cloth promulgated by the ministries or commissions of the Central Government " quality standard of building industry industry bamboo plywood form ", has substantially exceeded the plank sheathing and the wood plywood template that are widely used as the construction cement formwork at present especially:

1. the thickness deviation of product is littler than present bamboo plywood form, surface quality is also better than bamboo plywood form, plank sheathing, wood plywood template, the surface has not only kept the good wearability of bamboo plywood form, and surperficial Paint Gloss smooth than plank sheathing and wood plywood template, this has created good condition for the cement demoulding.

2. the density and hardness of product is all low than bamboo plywood form, the difficult nail of bamboo plywood, difficult defective of sawing have been overcome, can be at the construction field (site), according to actual needs, it is carried out processing and fabricating, and this construction to concrete cast engineering has brought very big convenience, simultaneously because product weight is lighter, when construction, also alleviated working strength of workers greatly.

3. product has adopted high performance phenolic resins as adhesive, bonding strength height not only, and have good resistance to water and durability, product can use 30-50 time repeatedly, far above 4-6 time of normal wood template, wood plywood template 6-8 time, long service life.

, briefly explain surface coating bamboo wood composite veneer of the present utility model below in conjunction with accompanying drawing:

Fig. 1 is the structural representation of surface coating bamboo wood composite veneer of the present utility model.

Fig. 2 is the stereoeffect schematic diagram of surface coating bamboo wood composite veneer structure of the present utility model.

As shown in the figure, this is the structure of a kind of surface coating bamboo wood composite veneer of the present utility model, by the long bamboo curtain splint 4 of innermost layer, is respectively veneer 5, long bamboo curtain splint 4, bamboo mat 3, veneer 2 and outermost bond paper 1 successively from inside to outside, is symmetrically distributed.

Claims

A kind of surface coating bamboo wood composite veneer, comprise and be followed successively by long bamboo curtain splint (4) from inside to outside, veneer (5), long bamboo curtain splint (4) ... the bamboo of arranging and being bonded by the high-performance pnenolic aldehyde resin adhesive by machine direction vertical interlaced mode, the wood composite core material, outside core, be bonded with bamboo mat (3) from inside to outside successively, veneer (2), outermost layer outside veneer (2) is bonded with bond paper (1), described veneer is meant the long 1300-1320mm that is, width is 400-600mm, thickness is 1.0-2.0mm, and moisture content is at the natural or artificial forest sheet material below 15%; Described bamboo curtain splint is with long 1320mm and 2560mm, wide 10-20mm, the bamboo vegetarian of thick 1.1-1.4mm, connect a kind of moisture content of forming bamboo wood construction unit at 10-15% with cotton thread or union twist yarn strand, bamboo mat then is with long 2560mm, wide 1320mm, the bamboo hedge of thick 0.6-0.8mm, weave a kind of moisture content of forming bamboo wood construction unit at 10-15% by the mode of " choose two press two " or " choose three and press three ", described bond paper is meant a kind of water-soluble or pure dissolubility synvaren that fully is impregnated with, spread reaches 80%-110%, and moisture content is at the brown paper below 7%.