CN2533993Y

CN2533993Y - Single-plate type artificial board

Info

Publication number: CN2533993Y
Application number: CN 02211290
Authority: CN
Inventors: 林利民; 张奇; 杨玲
Original assignee: RESEARCH INST OF FOREST PRODUCTS INDUSTRY HEILONGJIANG PROV
Current assignee: RESEARCH INST OF FOREST PRODUCTS INDUSTRY HEILONGJIANG PROV
Priority date: 2002-04-15
Filing date: 2002-04-15
Publication date: 2003-02-05
Anticipated expiration: 2012-04-15

Abstract

The utility model relates to a novel veneer artificial plate consists of three bonded veneer groups of an upper, a middle and a lower veneer group, wherein the upper veneer group and the lower veneer group consist of a plurality of bonded layers thinner veneer and glue layers and the middle veneer group consists of a plurality of bonded layers thicker veneer and glue layers. Through increasing density of the upper thin veneer and the lower thin veneer, the utility model enhances whole mechanical performance of the veneer artificial plate and low compression ratio of the product middle layer thick veneer group wood reduces cost and saves wood. The utility model can be applied in products for special use like a carriage plate or a container plate, etc. The utility model can use common woods with middle or low density like birch, pine or polar with density between 0.4 to 0.6 to produce good quality and low cost novel veneer artificial plates with static curved strength more than 80 M Pa, elastic modulus more than 9 by 10 (3) M Pa and 15 percent wood average compression ratio.

Description

A kind of novel single board quasi-artificial board

Affiliated field: the utility model relates to a kind of novel single board quasi-artificial board.

Background technology: one, employed at the outermost layer of glued board thickness is the veneer (for example clone's wood of tropical rain forest products) of the different seeds that each layer veneer density is higher than other, and all veneers are the equal thickness veneer, and this infrastructure product is to obtain higher intensity.Two, employed at the outermost layer of glued board thickness is one deck veneer (veneer) that each layer is thinner than other, only is used to improve the product decoration performance.Prior art is not in depth started with from the combination of product mix aspect and adjustment technology, therefore can't solve to improve the technical problem that the product strength performance limits the timber compression losses simultaneously and cuts down finished cost.

Summary of the invention: the purpose of this utility model provides a kind of product strength height, the timber compression losses is little, production cost is lower, in making, low-density timber is used for the novel single board quasi-artificial board of high performance requirements.The purpose of this utility model realizes by following structure: the utility model is a kind of novel single board quasi-artificial board, constitute by three the veneer groups in upper, middle and lower are bonding, its upper strata and lower floor's veneer group are made of than thin veneer and glue-line are bonding mutually multilayer, and middle level veneer group constitutes by thicker veneer of multilayer and glue-line are mutual bonding.The utility model can improve the mechanical property of single board quasi-artificial board product integral body by increasing upper strata, lower floor's thin veneer group density, and product layer thicknesses veneer group timber compression ratio makes cost reduce for a short time and saves timber.The utility model can be applicable in the product of special purpose requirement, as compartment board, container plate etc.The utility model can realize with in common, low-density wood raw material such as birch, pine, the timber of poplar isodensity about 0.4-0.6, produce MOR greater than 80MPa, elastic modelling quantity is greater than 9 * 10 ³MPa, timber mean pressure shrinkage is about 15% high-quality and the novel single board quasi-artificial board product of low consumption.

Description of drawings:

Fig. 1 is the utility model overall structure figure

Fig. 2 is that multilayer is than thin veneer group and the mutual glued construction figure of glue-line

Fig. 3 is thicker veneer group of multilayer and the mutual glued construction figure of glue-line

The specific embodiment:

The utility model as shown in Figure 1 is a kind of novel single board quasi-artificial board, constitute by three the veneer groups in upper, middle and lower are bonding, as shown in Figure 2, its upper strata 1 and lower floor's 3 veneer groups are made of than thin veneer 4 and glue-line 5 are bonding mutually multilayer, as shown in Figure 3, middle level 2 veneer groups constitute by the thicker veneer of multilayer 6 and glue-line 7 are bonding mutually.The veneer number of three the veneer groups in upper, middle and lower is respectively the 2-8 layer in the present embodiment, and in the veneer group and between the veneer group, direction of wooden fibers vertically or each other is arranged in parallel each other between the adjacent layer veneer.The utility model has following two kinds of implementations: 1) veneer behind the gluing is combined into the base compression set and is integral, make highdensity upper strata 1, lower floor's 3 veneer groups of compression in advance, with gluing middle level veneer group 2 compositions slab as shown in Figure 1, be processed into finished product through pressurization more again along the thickness symmetry.2) form upper strata, lower floor's veneer group and gluing middle level veneer group with thin veneer through gluing and be combined into slab, be processed into finished product through pressurization again.Use larch in Xinanlin area, white birch wood and poplar to carry out the making sheet experiment by said structure respectively, its properties of product reach MOR greater than 80MPa as a result, and elastic modelling quantity is greater than 9 * 10 ³MPa, timber mean pressure shrinkage is about 15%.1---upper strata, lower floor's thin veneer group are through improving its density after the compression process in advance, and its each layer veneer attenuation constitutes the single board quasi-artificial board product with layer thicknesses veneer group through the gluing pressurization again.2---be combined into upper strata 1, lower floor's 3 thin veneer groups with thin veneer, because it is thinner to form the veneer of upper strata and lower floor's veneer group, its synthetic resin gum consumption and veneer ratio are relatively large, the density of upper strata, lower floor's veneer group is improved, constitute high-performance single board quasi-artificial board product with layer thicknesses veneer group through the gluing pressurization again.

Claims

1, a kind of novel single board quasi-artificial board, it is characterized in that: constitute by three the veneer groups in upper, middle and lower are bonding, than thin veneer (4) and the mutual bonding formation of glue-line (5), middle level (2) veneer group is by thicker veneer of multilayer (6) and the mutual bonding formation of glue-line (7) by multilayer for its upper strata (1) and lower floor (3) veneer group.

2, a kind of novel single board quasi-artificial board according to claim 1, it is characterized in that: the veneer number of three the veneer groups in upper, middle and lower is respectively the 2-8 layer, in the veneer group and between the veneer group, direction of wooden fibers vertically or each other is arranged in parallel each other between the adjacent layer veneer.