CN203496060U - Film coated plywood for OSB4-bamboo composite container base board - Google Patents

Abstract

Film coated plywood for an OSB4-bamboo composite container base board comprises multiple layers of bamboo and wood veneer, adopts OSB4s as the materials of a middle layer, and is formed through the steps of combination, pre-pressing and attachment of impregnated film adhesive to the surface in a hot-press gluing mode. The film coated plywood for the OSB4-bamboo composite container base board comprises a film coating layer, an upper surface layer, a veneer layer, the middle layer, a veneer layer, a lower surface layer and a film coating layer in sequence, and is characterized in that the film coating layers are impregnated film adhesive, and the middle layer adopts the OSB4s and reduces assembly structural layers and adhesive; in a hot-pressing process, a process of cold-inlet cold-outlet is adopted, the defects that the surface of plywood for the container base board is uneven and warps easily due to the characteristics of bamboo are overcome, and the tensile property and bending resistance of bamboo are well brought into play; a surface film coating process is adopted, the appearance quality, impact resistance, abrasive resistance and stain resistance of the container base board can be met, a customer does not need to carry out finishing processing on the surface of the plywood, the production and operation cost of a container is lowered, and the quality requirements of the container base board are met.

Description

A kind of OSB4-bamboo wood composite container baseboard film coating plywood

Technical field

The utility model belongs to the wood-based plate manufacturing technology field in timber industry, relates in particular to OSB4-bamboo wood composite container baseboard film coating plywood.

Background technology

Along with the circulation development of international commodity economy, container is cumulative year after year in the use of transport service, as the main tool of lade, the main weight bearing area of container is at base plate, because it need to withstand the interference of long-range road and various climatic environments and jolt, so the relevant quality testing department such as Association International Des Registres and international vehicle authentication tissue all requires container bottom board to have higher mechanical property, presentation quality, impact resistance and ageing-resistant performance, hardwood or the hard material of frigid zone broad-leaved of the original tropical rain forest of the general employing of container bottom board are primary raw material, fast development along with global transport service, the demand of this assortment is also increasing, but because its growth cycle is long, in addition constantly fell in recent years, resource is more and more deficienter, has seriously restricted the raw material supply of container bottom board, and the exploitation of transition, caused the deterioration of ecological environment, flood frequently occurs, water and soil resources run off serious, seriously restricted the development of market economy, recovering is a very long and arduous engineering, for solving the problems of the technologies described above, insider is with regard to the national conditions of China, constantly explore and research, utilize the bamboo wood that china natural resources is abundant, poplar, Eucalyptus, birch, pine etc., replace tropical rain forest hardwood, frigid zone broad-leaved hardwood, meet the manufacture demand of ever-increasing container, can guarantee the property indices requirement of container bottom board, the ecological environment of again can to protect mankind depending on for existence, but this kind of timber diametral pitch is less, make container bottom board more difficult, container bottom board mechanical property, presentation quality, impact resistance and the ageing-resistant performance of producing is all not so good as hardwood or the hard material of frigid zone broad-leaved, is further improved.

Summary of the invention

The utility model, for the problem of prior art, has improved a kind of bamboo wood, poplar of effectively utilizing, Eucalyptus, and the assortments such as birch, pine process composite molding, improved raw-material utilization rate greatly; Adopt film coating plywood and preparation method thereof for OSB4-bamboo wood composite container baseboard; Its mechanical property, presentation quality, impact resistance and ageing-resistant performance, all can meet every technical performance index of container industry.

Key problem in technology of the present utility model is to adopt OSB4 oriented wood chipboard, bamboo and wood new composite structure; At superficial layer, attach impregnated bond paper; Adopt coldly to enter, coldly go out heat pressing process, overcome the easy distortion that Character brings to container bottom board, the defect of surface irregularity, the strong feature of tension, bending resistance of more effective performance OSB4 oriented wood chipboard and bamboo wood, reaches the requirement of intensity and the surface smoothness of container bottom board; Container production enterprise is without again composite board for bottom board of container being carried out to top finishing processing; Intermediate layer adopts OSB4 oriented wood chipboard, has reduced assembly structure level number, and the use of adhesive, has reduced production run cost, provides energy-saving and emission-reduction, the composite board for bottom board of container of the new structure of environmental protection; Guaranteed the product quality requirement of container.Its concrete technical scheme is: a kind of OSB4-bamboo wood composite container baseboard film coating plywood, comprise matrix, it is characterized in that matrix comprises coating layer, upper layer, ply, intermediate layer, ply, lower surface layer, coating layer from top to bottom successively, described coating layer is impregnated bond paper; The bamboo mat veneer that described upper layer or lower surface layer are longitudinal texture; Described intermediate layer is OSB4 oriented wood chipboard; Described ply is the bamboo and wood veneer of horizontal or longitudinal texture.

Impregnated bond paper is that brown paper obtains after heatmeltable phenolic resin glue floods, is dried.

As preferably, the seeds of described veneer are: one or more of clone, Marasse, beech, poplar, Eucalyptus, birch, pine.

As preferably, ply is 6 ~ 10 layers.

As preferably, described intermediate layer is centered by OSB4 oriented wood chipboard, and the arrangement of the thickness of upper and lower bamboo and wood veneer and specification, kind is symmetrical.

As preferably, described veneer be by log through rotary-cut, dry after, cut into the veneer of required specification, also can be by the consistent short veneer of width on identical texture, with veneer milling drum, wear into the inclined-plane of 5-8 °, on inclined-plane, brush phenolic resin glue, with bar shaped hot press, heat, pressurize, after splicing, cut into the veneer of required specification.

As preferably, described coating layer is impregnated bond paper: adopt the brown paper of 60-80g/m2 after heatmeltable phenolic resin glue dipping, through suitable dry paper, described its solids content of heatmeltable phenolic resin glue is 48 ± 1%, and the addition of anticorrisive agent is 0.5%.

As preferably, described bamboo veneer is by former bamboo, to be blocked into the bamboo section of required specification length, removes surf green, tabasheer after cuing open bamboo, cuts open the thin bamboo strip that the thin bamboo strip becomes required gauge thickness, is woven into bamboo mat, the bamboo curtain splint of required specification; Bamboo mat after drying, impregnation, low temperature drying, bamboo curtain splint veneer; Bamboo Veneer moisture≤12% before impregnation; Bamboo Veneer moisture≤18% after low temperature drying.

As preferably, described OSB4 oriented wood chipboard is to utilize small dimension wood, thinnings, reel, brush wood and little yule logs according to the slicing of grain of wood direction, to become the wood chip of the geometry of certain specification size, drying, glue spraying and directed crisscrossly mat formation, through high temperature, high pressure, compacting forms again; Moisture content≤12% of sheet material.

The preparation method of film coating plywood for a kind of OSB4-bamboo wood composite container baseboard, it is characterized in that described matrix is by multi-layer bamboo, veneer, OSB4 oriented wood chipboard, through assembly, precompressed, surface, attach impregnated bond paper hot-press gluing and form, in hot pressing, adopt coldly to enter, coldly go out heat pressing process: when hot press plate temperature≤50 ℃ fashionable dress plate, after hot pressing program completes, when hot press plate temperature≤50 ℃, unload plate.

As preferably, at upper and lower all devices of hot press flat board, there is stainless steel mirror board.

The beneficial effects of the utility model: the utility model coating layer is impregnated bond paper; Intermediate layer adopts OSB4 oriented wood chipboard, has reduced the use of assembly layer of structure and adhesive; In hot pressing, adopt coldly to enter, coldly go out technique, overcome Character to composite board for bottom board of container surface irregularity, plate face very easily produces the defect of warpage, has brought into play preferably tension, the anti-bending strength of bamboo wood; Adopt surface coating technique, can meet presentation quality, impact resistance, wearability, the stain resistance of container bottom board, without client, plate face is covered with paint, lacquer, colour wash, etc. to processing again, reduced the production run cost of container, also guaranteed the quality requirement of container bottom board.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment 1 of the present utility model.

Fig. 2 is the structural representation of embodiment 2 of the present utility model.

Fig. 3 is the structural representation of embodiment 3 of the present utility model.

The specific embodiment

Embodiment 1: its structure is as shown in Figure 1: coating layer impregnated paper 1, and upper layer 101, the veneer 102 of one deck cross grain, the bamboo veneer 103 of the longitudinal texture of one deck, is then the veneer 104 of one deck cross grain; Intermediate layer OSB4 oriented wood chipboard 105, the veneer 106 of one deck cross grain, the bamboo veneer 107 of the longitudinal texture of one deck, the veneer 108 of one deck cross grain; Lower surface layer 109; Coating layer impregnated paper 2; This structure OSB4--bamboo wood composite container baseboard film coating plywood is 11 layers; After assembly, through precompressed, adopt coldly to enter, coldly go out heat pressing process glue molding.

Embodiment 2: its structure is as shown in Figure 2: coating layer impregnated paper 1, upper layer 201, the veneer 202 of the longitudinal texture of one deck, the bamboo veneer 203 of one deck cross grain, the bamboo veneer 204 of the longitudinal texture of one deck, the veneer 205 of one deck cross grain, intermediate layer OSB4 oriented wood chipboard 206, the veneer 207 of one deck cross grain, the bamboo veneer 208 of the longitudinal texture of one deck; The bamboo veneer 209 of one deck cross grain, the veneer 210 of the longitudinal texture of one deck, lower surface layer 211, coating layer impregnated paper 2; This structure OSB4 bamboo wood composite container baseboard film coating plywood is 13 layers, after assembly, through precompressed, adopts coldly to enter, coldly goes out heat pressing process glue molding.

Embodiment 3: its structure is as shown in Figure 3: coating layer impregnated paper 1, upper layer 301, the veneer 302 of one deck cross grain, the bamboo veneer 303 of the longitudinal texture of one deck, the veneer 304 of one deck cross grain, the bamboo veneer 305 of the longitudinal texture of one deck, the veneer 306 of one deck cross grain, intermediate layer OSB4 oriented wood chipboard 307, the veneer 308 of one deck cross grain, the bamboo veneer 309 of the longitudinal texture of one deck; The veneer 310 of one deck cross grain, one deck is longitudinal

The bamboo veneer 311 of texture, the veneer 312 of one deck cross grain, lower surface layer 313, coating layer impregnated paper 2; This structure OSB4 bamboo wood composite container baseboard film coating plywood is 15 layers, after assembly, through precompressed, adopts coldly to enter, coldly goes out heat pressing process glue molding.

Above-described embodiment; adopt OSB4 oriented wood chipboard as intermediate layer; carry out bamboo wood compound; superficial layer attaches impregnated bond paper; the composite board for bottom board of container of producing, its technical scheme and design, not in order to limit the utility model; all employings are equal to the technical scheme of replacement or equivalent way acquisition, all within protection domain of the present utility model.

Claims (4)

1. OSB4-bamboo wood composite container baseboard film coating plywood, comprise matrix, it is characterized in that matrix comprises coating layer, upper layer, ply, intermediate layer, ply, lower surface layer, coating layer from top to bottom successively, described coating layer is impregnated bond paper; The bamboo mat veneer that described upper layer, lower surface layer are longitudinal texture; Described intermediate layer is OSB4 oriented wood chipboard; Described ply is the bamboo and wood veneer of horizontal or longitudinal texture.

2. a kind of OSB4-bamboo wood composite container baseboard film coating plywood according to claim 1, is characterized in that the seeds of described veneer are: one or more of clone, Marasse, beech, poplar, Eucalyptus, birch, pine.

3. a kind of OSB4-bamboo wood composite container baseboard film coating plywood according to claim 1, is characterized in that ply is 6 ~ 10 layers.

4. a kind of OSB4-bamboo wood composite container baseboard film coating plywood according to claim 1, is characterized in that the paper that brown paper that coating layer impregnated bond paper is used is 60-80g/m2.

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