Laminar composite (versions)

FIELD: process engineering.

SUBSTANCE: invention relates to production of glued laminar structures. Laminar composite comprises two surface layers of sheet material glued together and two inner layers arranged there between. Every said inner layer is composed by reinforced cellular structure of bamboo fragments shaped to plates or chips ob bamboo walls obtained by cutting the bamboo stem along the walls and across the stem. Cellular structure reinforcement is made with the help screen of glass fibre or glass fibre web. Note here that cellular structure is laid in screen or web and closed from above by another screen or web. Besides, this invention describes the versions of laminar material.

EFFECT: higher operating performances, decreased weight.

5 cl, 8 dwg

 

The invention relates to the production of glued laminated constructions and can be used for manufacturing small wall materials, small prefabricated structures, structural members and the designs themselves, as well as items of flooring and roof, suspended or false ceilings, joinery and furniture boards.

The invention considers a composite laminate or a sandwich construction in which the term "composite" refers to the so-called composite material or composite artificially created heterogeneous solid material consisting of two or more components with different physical and chemical properties which remain separate on a macroscopic level within the finished structure. Mechanical behavior of the composite is determined by the ratio of the properties of the reinforcing elements and the matrix (only the value of the binder in the composite material), as well as the bonding strength between them. The effectiveness and efficiency of the material is dependent on the correct choice of initial components and technologies of their connection designed to provide a strong bond between the components while maintaining their original characteristics.

On the modern market of composite materials there is a need for light, durable warm pan who had containing organic materials to enable rapid construction of structures for any purpose, including buildings, furniture, floors. In this regard, the panel of natural bamboo are considered as an alternative to wood business. Manufacturers quickly realized the hardness of bamboo (figure Brinell - 4,5-4,8), resistance to moisture and point loads. Bamboo is not a tree, and growing high herbaceous plant with small thickness of the hollow stem. If we compare the robustness of two rods of the same cross-section of wood and bamboo, you can be sure that the bamboo about two times more durable and flexible. For a long time these features were used in the manufacture of various products. The use of bamboo to replace the wood reduces the weight of solid wood and composite materials based on wood by about 40%, reaching densities of up to 250 kg/m3and can significantly reduce such layered materials internal stress, often leading to deformation of the panels in violation of the technology or the impact of load and atmospheric conditions.

Known composite material made of bamboo, containing two surface layer made of sheet material and an inner layer of filler to be placed between them, when the eat the inner layer the filler is made in the form of a cell of the honeycomb structure, the sheet material made in the form of bamboo panels, the inner filler around the perimeter provided with a box-like frame made of bamboo, the sides of which are connected by a tie not less than two layers of intersecting rods made of bamboo, which is placed between the reinforcing fiberglass mesh or metal or plastic and is coated with the layer of glue or adhesive, and between the layers of sheet material and an inner filler also placed mesh and put layers of glue or adhesive bonding sheet material with rods of bamboo (RU NO. 110110, AS 2/00, publ. 10.11.2011).

Also known as a composite material made of bamboo, sterzi two surface layer made of sheet material, and an inner filler placed between them, with the inner filler is made in the form of a cell of the honeycomb structure, the sheet material made in the form of bamboo panels, the inner filler consists of one or more layers of honeycomb cells made in the form of cylinders of bamboo, cardboard or plastic between the layers of the inner filler placed layers of sheet material in the form of panels of bamboo, plywood, cardboard or paper, and between the layers of sheet material and the honeycomb cells in the form of a cylinder of bamboo o f the and reinforcing fiberglass mesh or plastic or metal and put layers of glue or adhesive, connecting the sheet material from rolls of bamboo, cardboard or plastic (RU NO. 103548, AS 2/00, publ. 20.04.2011). This decision was made as a prototype for all of the stated objects.

The disadvantage of all the known solutions, including prototype, is that fragments of bamboo in layered composite are used as filler space between the two surface layers which have the function of forming a predetermined thickness of the panel and reduce the specific weight of this product. In this regard, as a placeholder and shaper cell design uses cylinders of bamboo. With such design and to compliance with requirements, monitoring the thickness and flatness of the upper surface of the layer towards the bottom it is necessary to strictly comply with the condition, according to which the cylinders of bamboo must have the same height despite the fact that the surface on which they are placed, must be aligned. If these conditions are sufficient complexity can be performed for a three-layer structure, increasing the number of layers of the cell layer, the alignment process becomes complicated and becomes directly dependent on the dimensions of the cylinders of bamboo. The task of continuously monitoring the flatness of the position of each subsequent layer in the known patent is of Elena through the use of mesh, including plastic and metal. This indicates that these grids are hard and do not change their spatial shape. Due to this and due to the introduction between the layers of adhesive are aligned overlay surface against the tiled layer. But the introduction of metal mesh affects the weight of the product and does not allow the finished product to cut and fit on site. In addition, the presence of the panels in the internal structure as load-bearing elements between the fillers increases the weight of the product.

The present invention is directed to the achievement of the technical result consists in the improved performance by providing reduced weight by increasing the number of internal layers in the composite layered material in relation to the prototype.

This technical result for the first variant execution is achieved by the fact that in the composite layered material containing interconnected by means of glue or adhesive and then curing the two surface layers of sheet material each and placed between them at least one internal layer is made in the form of reinforced cellular honeycomb structure from fragments of bamboo in the form of rings or cylinders, obtained by cutting transversely of bamboo stalks, or in the form of plates or depuis walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, for reinforcing the cell of the honeycomb structure used fiberglass mesh or fabric of glass fiber, with a cellular honeycomb structure placed on a grid or a canvas top and closed another mesh or canvas.

This technical result for the second type of performance is achieved by the fact that in the composite layered material containing interconnected by means of glue or adhesive and then curing the two surface layers of sheet material each and placed between them at least one internal layer is made in the form of reinforced cellular honeycomb structure from fragments of bamboo in the form of rings or cylinders, obtained by cutting transversely of the stem of bamboo for reinforcing the cell of the honeycomb structure used fiberglass mesh or fabric of fiberglass, while the cell of the honeycomb structure is formed by placing fragments of bamboo with the orientation direction of the fibers perpendicular to the surface of the surface layer and laid on a mesh or cloth, and the top is closed by another grid or canvas.

This technical result for the third variant is achieved by the fact that in the composite layered material containing connected between the FDS is th by means of glue or adhesive and then curing the layers, each made in the form of a reinforced cell of the honeycomb structure from fragments of bamboo in the form of rings or cylinders, obtained by cutting transversely of bamboo stalks, or in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, for reinforcing each cell of the honeycomb structure used fiberglass mesh or fabric of glass fiber, with a cellular honeycomb structure placed on a grid or a canvas top and closed another mesh or fabric, and each following layer pieces of bamboo laid on a grid or canvas covering fragments of bamboo in the first layer, and the top covered mesh or canvas for the formation of a composite unit in the form of a parallelepiped or a cube.

This technical result for the fourth variant is achieved by the fact that in the composite layered material containing interconnected by means of glue or adhesive and then curing the two surface layers of sheet material each and placed between them at least one internal layer is made in the form of reinforced cellular honeycomb structure from fragments of bamboo in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, for reinforcement of the postal honeycomb structure used fiberglass mesh or fabric of glass fiber, when this cell of the honeycomb structure is formed by placing fragments of bamboo with the orientation direction of the fibers perpendicular to the surface of the surface layer and placed on a grid or a canvas top and closed another mesh or canvas.

This technical result for the fifth variant is achieved by the fact that in the composite layered material containing at least one layer made in the form of a reinforced cell of the honeycomb structure from fragments of bamboo in the form of rings or cylinders, obtained by cutting transversely of bamboo stalks, or in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, characterized in that the reinforcement cell of the honeycomb structure used fiberglass mesh or fabric of glass fiber, with a cellular honeycomb structure placed on a grid or a canvas top and closed another mesh or canvas.

These characteristics are essential and interrelated with the formation of a stable set of essential features, sufficient to obtain the desired technical result.

The present invention is illustrated with specific examples of implementation, which, however, are not only possible, but clearly demonstrate the possibility of achieving demand is on the technical result.

Figure 1 is a first example of execution of the composite material;

figure 2 is a second example of execution of the composite material;

figure 3 - the third example of the execution of the composite material;

4 is a fourth example of the execution of the composite material;

5 is a fifth example of the execution of the composite material;

6 is a fragment of the execution of the inner layer;

Fig.7 - the inner layer in the form of a grid of bamboo strips;

Fig - the inner layer in the form of a grid of bamboo strips superimposed on one another.

According to the present invention is considered layered composite material, which can be used for the manufacture of panels or structural elements of the broad purposes. Feature of the composite material is its low weight with high strength properties and high load bearing capacity, which is due to the fact that as the source material is natural bamboo, which is in the form of fragments (a separate part in the form of rings, cylinders 1, plates 2 of the walls) fills the cavity of the panel. Fragments of bamboo well withstand high loads as along the fiber and across the grain.

Composite layered material has a multilayer structure and in the example shown in figure 1, consists of three layers: two outer layers 3 and 4, which surface is and reinforcing, and one inner layer 5 made in the form of a cellular honeycomb structure from fragments of bamboo in the form of rings or cylinders 1, obtained by cutting transversely of bamboo stalks, or in the form of plates 2 or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem. For this example, execution, and for all subsequent examples of execution, regardless of the number of layers for reinforcing the cell of the honeycomb structure is used, the grid 6 of the optical fiber or fiberglass cloth. Cellular honeycomb structure placed on a grid of 6 or canvas, which is applied to the layer of glue 7 or adhesive, and the top is closed by another grid 6 or canvas, on whose side facing the cell of the honeycomb structure as applied layer of adhesive 7 or adhesive. Thus, in the example of figure 1 the outer layers 3 and 4, made of mesh 6 fiberglass or cloth made of fiberglass, are both reinforcing layers.

As a glue or adhesive applied adhesives that are typically used in the production of parquet boards or gluing veneer on the furniture surface. Due to the variety of such tools in the framework of this proposal, specification of the type of glue or adhesive is not performed.

Such a composite material is a panel of a given size, the internal with ructure which, made from pieces of bamboo, determines the mechanical properties of this product. The panel accepts the load in the direction coinciding with the direction of bamboo fiber and across the fibers, and it just loads transverse to the panel that allows this panel to consider as a building sheet of layered material with high load capacity. This panel has a reduced weight, which is determined, in fact, the weight of the bamboo (bamboo has a low density of about 500 kg/mCweight fibreglass mesh -135 grams per square meter, and the weight of the cloth from fiberglass - 473 grams per square meter). As the mesh or fabric of glass fiber, having the flexibility to interact with glue or binder, is practically not exposed to aggressive environments and is not elastic, then after drying or curing of the adhesive occurs consolidation of the entire layered structure.

The mechanical properties, i.e. the carrying capacity of the panel of composite material can fold increase in almost a slight increase in weight due to the increased number of cell layers of the structure. For the formation of two layers of a first form panel, as described in relation to the product of figure 1, and then form the second layer. In the second layer mesh is 6 or canvas, closing the fragments of bamboo in the first layer, cover with a layer of glue 7 or adhesive. Then pieces of bamboo are placed on a grid or canvas covering fragments of bamboo in the first layer, and the top cover additional mesh or canvas, the back side of which bears a layer of glue or adhesive. Similarly, you can increase the number of layers. After sealing under pressure and polymerization of the binder components panel with two or more internal layers becomes monolithic design.

In such multilayer panels layers with fragments of bamboo can be located by matching the direction of their fibers (figure 3), or in a single layer slices of bamboo can be located with the direction of their fibres, other than the direction of the grain fragments of bamboo in another layer or other layers (figure 5). While the inner layer is at least some fragments of bamboo can be located with the direction of their fibres, other than the direction of fibres other part of the fragments of bamboo in this layer (illustrative example not shown).

When increasing the number of homogeneous layers described with reference to the example in figure 1, we can ensure that the material will take the form of a composite unit in the form of a parallelepiped or a cube (figure 4). These blocks are convenient, as they allow then use the saw sawed shall be on a separate panel 8 in any direction of the block, as shown in figure 4. For the formation of the block is formed from a first basic three-layer fragment: honeycomb mesh design from pieces of bamboo are placed on a mesh or fabric of glass fibers and from above close to another of the same mesh or fabric, and each following layer slices of bamboo are placed on a grid or canvas covering fragments of bamboo in the previous layer, and the top cover additional mesh or canvas for the formation of the composite block. Naturally, bond grids or panels of fragments of bamboo carry out at the expense of glue or adhesive, which is in the form of a layer applied to the grid or canvas.

The feature of using flexible mesh or flexible non-woven cloth made of glass fibers, is that when polymerization of the glue or adhesive mesh is laid on a layer of slices of bamboo and eliminates uneven cell structure.

The use of mesh or nonwoven fabric of glass fiber helps to ensure breathability as a separate sandwich panel, sandwich panels, and a building block of such layers. This allows you to get a vented one hand, and sound and sound design with the other hand. Noise and soundproofing provided that the sound waves penetrate into the internal structure of the panel, the fall in the large number of chambers or cavities and are crushed and extinguished. In this panel there is no resonance effect.

Such a composite material, as, in fact, completed the construction of a composite module that allows to produce panels that are separate surface layers, giving the product is applied.

For example, figure 2 shows the layered composite material containing interconnected by means of glue or adhesive and then curing the two surface layers 9 and 10 of sheet material each and placed between them at least one internal layer is made in the form of reinforced cellular honeycomb structure from fragments of bamboo in the form of rings or cylinders, obtained by cutting transversely of bamboo stalks, or in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem. This inner layer repeats the design of the composite module of figure 1.

In this example, the surface layers can be made of cardboard or paper, or plastic, or wood, or bamboo. Depending on the type of material of the surface layer can get panels for furniture, parquet Board, decorative panel, etc. the Thickness of such panels is determined by the sum of the thicknesses of each layer that allows to vary this parameter depending on the application task.

In cell I is aistech structures can be used as fragments of bamboo portion in the form of rings or cylinders 1, the obtained cross-cutting of bamboo stalks, or in the form of plates 2 or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem. While variations of the location of these fragments in the cell of the honeycomb structures are diverse. For example, the second inner layer slices of bamboo in the form of rings or cylinders can be arranged with an offset from the fragments of bamboo in the form of rings or cylinders in the first inner layer. In the inner layer the slices of bamboo in the form of rings or cylinders can be arranged adjacent to each other by walls or located relative to each other with a gap between the walls. Or in the inner layer at least part of the fragments of bamboo in the form of rings or cylinders are adjacent to each other by walls.

Possible variant, according to which the middle layer can be made of bamboo cylinders on the principle of "one another", i.e. on the principle of "Russian dolls". In the cylinder 1 or the ring of bamboo is inserted into the same cylinder 1 or the ring of bamboo, but of smaller diameter, as shown in Fig.6. This option allows the cylinders (rings) bamboo large diameter, it is easier to choose" volume products. And to increase the strength inside of this cylinder is inserted small. In this embodiment, RA is the position of the cylinders in the middle layer can be, as ordered and chaotic. 7 shows an example of performing the material and the inner layer, made in the form of a single-level grid composed of intersecting bamboo slats, and Fig - same as figure 9, only the grid made two levels: on the lower level bamboo planks laid distant relative to each other when matching their direction, and in the upper level of the same styling, but the strap is directed in the other direction - cross.

Furthermore, the composite material can be modified in terms of exclusion of one of the layers of fibreglass mesh. For this example, one layer of mesh or cloth fiberglass stacked orderly or chaotic cylinders, or rings, made for example of different heights, but their position is orderly or chaotic, which allows you to create artistic patterns. This feature allows you to create layered composite material, in which fragments of bamboo in the form of rings or cylinders or plates of the walls are made of different height and placed on a greased adhesive or abrasive a fiberglass mesh or fabric of glass fiber in the form of an ornament or figure.

The proposed design of the building and finishing of composite material allows to obtain panels of any thickness and design and low weight, this design is Ktsia it's rather hard to use as the load-bearing plates. In addition, the proposed device allows you to securely protect the interior from temperature fluctuations and external noise and thus improve heat and sound insulation.

Specialist in the art it is obvious that in this invention there are a variety of modifications and changes. Accordingly, it is assumed that the present invention covers these modifications and changes, and equivalents without departure from the essence and scope of the invention disclosed in the accompanying claims.

1. Composite layered material containing interconnected by means of glue or adhesive and then curing the two surface layers of sheet material each and placed between at least two inner layers, each made in the form of a reinforced cell of the honeycomb structure from fragments of bamboo in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, characterized in that the reinforcement cell of the honeycomb structure used fiberglass mesh or fabric of glass fiber, with a cellular honeycomb structure placed on a grid or a canvas top and closed another mesh or canvas.

2. The material according to claim 1, characterized in that the surface layers are made of cardboard and paper, or plastic, or wood.

3. Composite layered material containing at least two layers, each made in the form of a reinforced cell of the honeycomb structure from fragments of bamboo in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, characterized in that the reinforcement cell of the honeycomb structure used fiberglass mesh or fabric of glass fiber, with a cellular honeycomb structure placed on a grid or a canvas on which is applied a layer of glue or adhesive, and the top is closed the other mesh or canvas, on whose side facing the cell of the honeycomb structure is coated with the layer of glue or adhesive.

4. Composite layered material containing interconnected by means of glue or adhesive and then curing the layers, each made in the form of a reinforced cell of the honeycomb structure from fragments of bamboo in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, characterized in that the reinforcing each cell of the honeycomb structure used fiberglass mesh or fabric of glass fiber, with a cellular honeycomb structure placed on a grid or a canvas top and closed another mesh or fabric, and each following the m layer pieces of bamboo laid on a grid or canvas, closing the fragments of bamboo in the first layer, and the top covered by a grid or a canvas for the formation of a composite unit in the form of a parallelepiped or a cube.

5. Composite layered material containing layers, made in the form of reinforced cellular honeycomb structure from fragments of bamboo in the form of rings or cylinders, obtained by transverse cutting of bamboo stalks, or in the form of wafers or chips from the walls of bamboo, obtained by cutting the stalk of the bamboo along the walls and across the stem, characterized in that the reinforcement cell of the honeycomb structure used fiberglass mesh or cloth from fiberglass, cellular honeycomb structure placed on a grid or a canvas on which is applied a layer of glue or adhesive, and pieces of bamboo in the form of rings or cylinders, or plates of the walls are made of different height and laid out on a fiberglass mesh or fabric of glass fiber in the form of an ornament or picture.



 

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6 cl, 4 dwg

FIELD: personal use items.

SUBSTANCE: present invention relates to outer corner posts, used as outer decorative elements of outer corner parts of wall surfaces, as well as to a device for facing edges of an outer corner post. The outer corner post has two sheets, joined to each other using a hot-melt adhesive and with formation of an edge, passing along the long side of that post. On the edge there is a faced part, the surface of which is curvilinear, with irregular ridges running one behind the other along the long side of the post. The surface of the adhesive layer used is smooth at the junction with the edge, and runs on the curvilinear surface of the faced part. A device for facing edges of outer corner posts is described.

EFFECT: improved quality of edge faces.

12 cl, 11 dwg

FIELD: construction.

SUBSTANCE: invention is related to device for manufacture of construction bearing and self-bearing insulated monolithic reinforced panels on the basis of polyurethane foam used in industrial and civil construction. Method is described for manufacture of construction panel, which includes placement of sheet material on device base, installation of rectangular frame with clearance relative to device base and filling of polyurethane foam via pouring device.

EFFECT: manufacture of construction panel with maximum heat and sound insulation achieved by break of heat-conductive connections of external panel planes to internal ones.

3 cl, 1 dwg

FIELD: technological processes.

SUBSTANCE: method for winding of conic revolution shell from polymer composite materials, comprising power shell and frames, in which material is wound on hooks. Hooks are made in the form of spiked tape from nails and flaky plastic from at least two strips of glass tissue. Nail heads are located between strips. Tapes are installed evenly along circumference onto power shell in the hook area and are fixed. Then hook material is wound with thickness that does not exceed thickness of nails. Then the following group of spiked tapes is installed with displacement in circumferential direction relative to the previous ones and frame material is again wound. Operation is repeated until frame of required thickness is obtained.

EFFECT: creation of more manufacturable structure of conic revolution shell with increased reliability of its operation.

4 cl, 6 dwg

Sandwich panels // 2341546

FIELD: construction.

SUBSTANCE: sandwich panels contain insulating layer, which is provided with glued layer of coating on, at least, one side. Coating contains glue resulted from reaction of aqueous solution of alkali silicate with polyisocyanate. Mass ratio between aqueous solution of alkali silicate and polyisocyanate is between 1:2 and 5:1.

EFFECT: low heating effect, increase fire safety class.

15 cl, 8 tbl, 6 ex

Building panel // 2340742

FIELD: construction industry.

SUBSTANCE: invention refers to construction industry, and namely to building panel. Panel is used in housebuilding as slab element or wall element. Panel consists of many OSB-plates (oriented strand boards) located near each other. OSB-plates are bonded to each other, thus forming multiple layers.

EFFECT: manufacture of cost-effective panel having high heat-insulating and sound-insulating properties.

8 cl, 1 dwg

FIELD: building.

SUBSTANCE: inventions concern to wall elements and also ways of their manufacturing. The wall element for manufacturing of external walls of the buildings, having the integral design consisting of a slab-basis, executed from a levigated plant material and mineral substances, and an isolation slab executed from thermal insulation material not interfering diffusion. Thereat recesses are executed under load-carrying structure elements in the slab-basis, in particular in the form of wooden racks. Also versions of methods of its manufacturing are described.

EFFECT: reduction of terms of building and increase of heat-insulating properties.

23 cl, 3 dwg

Multi-layer panel // 2297329

FIELD: multi-layer panels with filler made from honeycomb sheet material; manufacture of flying vehicles; mechanical engineering.

SUBSTANCE: proposed multi-layer panel has perforated skins and filler made from perforated and corrugated sheet material. Filler consists of alternating perforated and corrugated upper strips and lower perforated and corrugated strips. Screens found between side surfaces of upper and lower strips are mounted transversely relative to them.

EFFECT: enhanced efficiency of noise suppression.

3 dwg

FIELD: process engineering.

SUBSTANCE: invention relates to production of furniture from readily available and cheap materials. Proposed method comprises cutting sections from cardboard shaped to article face shape and/or its cross-section, first grinding of its entire surface, applying glue on section surfaces uniformly on their entire surfaces and gluing all section together. Then produced workpiece is formed by acting female die on its face surface to carry out second grinding. Thereafter, fireproof coating is applied.

EFFECT: simplified process, higher efficiency.

10 cl, 1 dwg

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