WO2001038082A1

WO2001038082A1 - A composite material having triangular cavity structure

Info

Publication number: WO2001038082A1
Application number: PCT/CN2000/000426
Authority: WO
Inventors: Qunji Li; Yuzhen Zhan; Jing Li
Original assignee: Qunji Li; Yuzhen Zhan; Jing Li
Priority date: 1999-11-24
Filing date: 2000-11-17
Publication date: 2001-05-31
Also published as: AU1379201A

Abstract

The invention discloses a composite material of triangular cavity structure, which includes a lot of triangular prism cavities. The material at least has one layer composed of many abreast arranged triangular prism cavities, and including an intermediate layer, the cross section of which is toothed, and liner layers, which are connected to the tip angles at both sides of the toothed intermediate layer. If the material includes two layers of said triangular prism cavities layers or more, the angle between the adjoining layers of triangular prisms cavities is 0°-90°.

Description

Composite material with triangular cavity structure Field of the invention

The invention relates to a composite material with a molding structure. Specifically, it uses a triangular cavity structure to increase the duty cycle, reduce the material's own weight, and at the same time obtain higher specific strength and specific stiffness, and also obtain thermal insulation performance. A triangular cavity structure composite material. technical background

Prior to the present invention, a composite material was disclosed in the prior art, and this material was disclosed in the Chinese invention patent ZL 93118396.0 "a paper-based high-strength material". This material is made of cardboard with equal widths, and has a number of parallel, equidistantly arranged wedges, which are inserted into each other to form a triangular cavity structure. This material has the following problems in production and use: First, because the manufacture of this material requires the use of cardboard with a number of wedges that are evenly distributed and highly accurate, which are interlinked and cross-linked, it is necessary to produce this material. It is very difficult. Second, because this paper-based material uses many parallel and equidistantly arranged wedges, the triangle cavities can only be arranged in one direction, and the angle of the triangle cannot be adjusted to adjust the angle of resistance to external forces according to the object. Therefore, the increase in strength and stiffness is also limited.

In addition, the rigidity and strength problems of shaft parts or tube materials are often encountered in our production practice. For example, we often encounter shafts with large spans and small diameters in mechanical manufacturing. Strength, stiffness, and deflection caused by the material's own weight make mechanical manufacturing and design impossible, and replacement with other lightweight materials is not available. The necessary strength and stiffness performance factors make many good projects impossible to implement. In addition, there are some super-large-diameter tubular materials that cannot be produced due to their heavy weight. Although they can be made by cold work, due to their super-large diameter, the thickness of the produced plate and the pressure resistance during use and welding technology The requirements are very high. The consumption of materials and its own weight are very large, which also increases the cost, man-hours, losses and manufacturing difficulty factors. There are also some tube materials To have heat insulation performance, pipe materials with this performance are particularly suitable for chemical transportation, heating, refrigeration and pipeline transportation that has both pressure resistance and heat insulation performance. Such as the transportation of oil, natural gas, hot water and steam. Most of the currently widely used pipe thermal insulation technology is to add a thick layer of thermal insulation to the pipe wall, and because many thermal insulation materials are not strong enough to be easily damaged, the maintenance costs are increased, in order to reduce thermal insulation The service life of the layer usually requires the completed pipeline to be placed in the underground to be used as the pipeline thermal insulation layer construction. This process is very expensive. In addition to the large amount of earthwork and high cost during maintenance, the old insulation layer material must be removed and replaced with a new insulation layer material, so direct burial of the transportation pipeline cannot be achieved. Bowed roofs also suffer from these problems.

The triangular cavity structure disclosed by ZL93118396.0 is only suitable for plate-like materials, and cannot be used for tubular materials.

Brief description of the invention

Therefore, an object of the present invention is to solve the problems of molding and manufacturing difficulties in the above background technology and the problem that the angle of the triangle and the arrangement direction of the rows of triangular cavities cannot be adjusted according to the direction of the force during use. Simple, high-rigidity, light-weight, low-cost, heat-insulating properties, and easy to manufacture various shapes of triangular cavity structure composite materials other than plates.

According to the above object, the present invention proposes a triangular cavity structure composite material, which includes a plurality of triangular prism cylinders, wherein the material has at least one triangular prism cylinder layer composed of a plurality of triangular prism cylinders arranged side by side. The triangular prism tube layer includes an intermediate layer with a zigzag cross section and a lining layer connected to the top corners of both sides of the zigzag intermediate layer. When at least two layers of the triangular prism tube layer are included, the adjacent The included angle of the triangular prism arrangement direction of the two triangular prism cylinder layers is 0 ° to 90 °.

According to the above technical solution, the composite material of the present invention can be made into a plate, and its triangular prism layer includes a zigzag-shaped intermediate layer and a flat lining layer connected to the top corners of both sides of the zigzag-shaped intermediate layer. Together form a row of complementary prismatic cylinder layers.

In addition, the composite material of the present invention can also be made into a tubular material or an arc-shaped material. The tube wall of the tubular material or the arc-shaped material includes at least one layer of the triangular prism layer. The triangular prism layer includes a zigzag-shaped intermediate layer and is tangent to the inner and outer apex angles of the zigzag-shaped intermediate layer. The connected lining pipe or curved lining board is tangent to the top corners of the lining pipe and is connected.

The triangular prism cylinder according to the present invention is formed by rolling or embossing, firstly determining an apex angle and two hypotenuse edges of the triangular prism cylinder, and then bonding and fixing the upper and lower lining plates. Therefore, it is extremely convenient to manufacture and shape, and the angle and side length of the triangular prism can be adjusted according to the direction of force during use, thereby further improving the strength and rigidity of the material. The mechanical structure is most reasonable when the zigzag folded intermediate layer in the composite material of the present invention is equilateral zigzag.

After the layer of the triangular prism cylinder according to the present invention is determined, the adjacent triangular prism cylinders are then bonded to each other along the lining plate, and a lining layer may be shared. At this time, the arrangement direction of the triangular prism cylinders between them can be selected in parallel or cross arrangement according to the use situation, and it can be realized by changing the direction of the zigzag intermediate layer. Therefore, the structural mechanical properties of the present invention are more reasonable and the selectivity is greater.

In the embodiment of the present invention, the material of the triangular prism cylinder layer may be cured by using a paper material and an adhesive curing agent. Alternatively, the material of the triangular prism layer can also be bonded by using plastic or metal or other non-metallic materials or a mixture of the above materials. In addition, the zigzag-shaped intermediate layer of the triangular prism cylinder layer may be made of an elastic material, and the upper surface or / and the lower surface of the plate-shaped composite material may be made of a metal plate.

The present invention has the advantages of using a triangular prism layer structure in that it can select different materials and combinations according to different uses, and choose different adhesives and curing agents, thereby achieving a substantial increase in the strength and stiffness of the material itself. Large air ratio, small specific gravity, low cost, not easy to deform, sound insulation, heat insulation, anticorrosion, flame retardant and other superior performance. Practice has proved that it not only has excellent mechanical properties in compression, bending and deformation resistance, but also has excellent thermal performance in thermal insulation. Therefore, the scope of application of the present invention is very wide. In the field of machinery, it can be used as a slender shaft or a large diameter pipe, instead of similar products that cannot be processed by mechanical methods. In the field of chemical industry, it can be used as a pipe to transport crude oil, natural gas or chemical raw materials. It solves the problems of easy corrosion, non-insulation and high cost of the existing metal conveying pipes. In the field of municipal engineering, it is especially suitable for hot-water conveying pipes or sewage discharge pipes because of its excellent heat insulation and corrosion resistance. It can even be used in high-tech fields such as aerospace, aviation, navigation, and automobiles.

The above composite material of the present invention uses paper as a material, and a plate-shaped, block-shaped, tube-shaped, arc-shaped, bow-shaped and other materials made by adding a waterproofing agent and a flame retardant to the adhesive curing agent are particularly suitable for building interior and exterior walls, Columns and ceilings are especially suitable for partition walls of high-rise buildings and large-scale stadium ceilings without column requirements. It not only has the advantages of light weight and heat insulation, but also has the advantages of using industrial and agricultural waste, protecting land resources, and being pollution-free. It will have a huge impact on the building materials industry and the construction industry.

Brief description of the drawings

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. among them:

FIG. 1 is a perspective view of one embodiment of the composite material of the present invention.

Fig. 2 is an exploded perspective view of a triangular prism cylinder layer and a lining plate.

Fig. 3 is a schematic diagram of rolling of a vertex and a hypotenuse of a triangular prism cylinder.

FIG. 4 is a side view of the rolling device in FIG. 3. FIG. Figure 5 is a schematic diagram of the layered compression molding of a triangular prism cylinder.

FIG. 6 is a cross-sectional view of a triangular prism cylinder layer after compression molding.

Fig. 7 is a radial sectional view of another embodiment of the present invention, showing a composite tubular material in which adjacent triangular prism cylinder layers are arranged in parallel in the axial direction.

FIG. 8 is an axial sectional view of FIG. 1.

Fig. 9 is a perspective view of a composite tubular material in which adjacent cylindrical prism layers are arranged in a cross.

Best Mode of the Invention

FIG. 1 is a perspective view of an embodiment of the present invention, showing a composite plate-like material. As shown in FIG. 1, the composite plate-like material includes at least one layer of triangular prism cylinders (6 layers are shown in FIG. 1). Each triangular prism tube layer includes a middle with a zigzag cross section In layer 1, two liner layers 2 are respectively bonded at the zigzag-shaped apex corners on both sides of the layer. Fig. 2 is an exploded perspective view of an intermediate layer and a liner.

The production of the triangular prism layer is described in detail below with reference to FIGS. 3 to 6. First, a plate-shaped material, such as a 0.8 mm thick aluminum plate, may be used, but any other type of plate-shaped material may be used. As shown in FIG. 3 and FIG. 4, from the upper rolling shaft 3 and the lower rolling shaft 4 Pass, and use the upper and lower rolling shafts 3, 4 to roll the turning groove. Grooving knives 5 are provided on the upper and lower rolling shafts, and the furrow knives 5 on the upper and lower rolling shafts are staggered with each other and arranged at equal distances. The height of the creasing knife 5 is set so that the turning grooves can be rolled to each other without cutting the aluminum plate, and then the special mold shown in FIG. 5 is molded into the zigzag-shaped intermediate layer 1 shown in FIG. 6. The lining plate 2 may be, for example, a flat aluminum plate, but other materials may also be used. The upper and lower sides of the intermediate layer 1 are bonded and fixed by the lining plate 2 with an epoxy-based adhesive. Each of the top corners of the zigzag-shaped intermediate layer is required. The angle is the same. If a multi-layered triangular prism layer structure is adopted, another zigzag-shaped intermediate layer may be bonded to the other side of the above-mentioned lining plate 2 and adjacent to the first intermediate layer 1, that is, the two layers share a lining plate, and then On the opposite side of the second intermediate layer from the lining plate 2, another lining plate is bonded to form a two-layer structure. By analogy, a multilayer aluminum composite plate with light weight, strength and stiffness as shown in Fig. 1 can be made. It is suitable for use in structures such as gates. It should be known that in a multilayer composite material, adjacent zigzag intermediate layers may be arranged in the same direction or may be arranged in a cross. The jagged folded corners of two adjacent intermediate layers arranged in the same direction are preferably aligned with each other.

The zigzag-shaped intermediate layer 1 may also be pre-formed in a mold using concrete as shown in Figs. 2 and 6. The lining plate 2 is also preformed into a flat plate shape using the same material. The above-mentioned intermediate layer 1 and the lining plate 2 are cemented or fixed with cement or viscose according to the steps described above to make a building material with high strength and rigidity as shown in FIG. 1. It is suitable for building walls and roofs.

In addition, the intermediate layer 1 may also be made of rubber or other elastic materials and is made by using the mold shown in FIG. 5, and the vertex angle and the side length of each of the zigzag shapes are smaller. The backing plate 2 is also made of rubber or other elastic materials. Put the above intermediate layer 1 and liner 2 in the steps described above The three prismatic cylinder layers are bonded together, and adjacent triangular prismatic cylinder layers are staggered to form an elastic cushion as shown in FIG. 1. The elastic cushion can be used as a seat cushion and a Simmons mattress; it can also be used as an anti-impact and injury cushion for sports athletes; and it can also be used to make soles, thereby playing a good air cushion function. .

An impact-resistant metal plate (such as a steel plate) is bonded to each of the upper surface and / or the lower surface of the elastic triangular prism cylinder layer, so that an impact-resistant metal plate material can be made. Its performance is both sound and heat insulation, impact resistance and water seepage prevention.

In addition, the middle layer 1 can also be made into a sawtooth shape as shown in FIG. 2 on a special device (not shown) by using a paper sheet. The backing plate 2 is also made of paper. When used in construction, yellow board paper (pulp paper) is used, and the intermediate layer 1 and the lining board 2 are added with a flame retardant (fly ash) and a waterproofing agent (sodium silicate) as an adhesive curing agent. The spraying or infiltration method is used for bonding and curing. The direction of the middle layer of the adjacent triangular prism cylinder layers can be arranged in parallel or in a fork, that is, the alignment direction of the adjacent triangular prism cylinder layers can be 0 ° — Within 90 °.

The curing agent used in this embodiment may be epoxy resin, and may also be cured with various organic and inorganic adhesives, such as urea-formaldehyde resin, unsaturated resin, cement, gypsum, and the like. The material described in this embodiment has the advantages of small specific gravity, low cost, anti-corrosion, heat insulation, anti-magnetic, flame resistance, high electrical resistivity, good microwave permeability, etc., and can be widely used in the fields of construction and packaging.

Next, another embodiment of the present invention will be described in detail with reference to Figs. 7 and 8 in combination with Figs.

A composite tubular material having two triangular prismatic barrel layers is shown in FIGS. 7 and 8. The composite tubular material of the present invention may also be composed of a single layer or a multi-layered triangular cylindrical layer. As shown in FIG. 7, the intermediate layer 1 is, for example, a 1 mm thick steel plate, but other plate-like materials may be used. First, the intermediate layer 1 is rolled and turned between the upper rolling shaft 3 and the lower rolling shaft 4 shown in FIGS. 3 and 4. The ditch cutters 5 on the upper and lower rolling shafts are arranged in a staggered and equidistant state. The height of the ditch cutters 5 is set so that the turning grooves can be rolled on each other on the steel plate as an intermediate layer without letting the steel plate Was cut off. Then, in the specialty shown in Figure 5 It is pressed into a zigzag shape as shown in FIG. 6 with a mold. The liner 2 is made of steel pipe, and the intermediate layer 1 prepared above is bonded or welded to the outer surface of the inner liner 2, and then the middle layer 1 is bonded or welded to the outer surface of the intermediate layer 1. May consist of several segments. Then, another zigzag-shaped intermediate layer 12 prepared according to the above method is wound and bonded or welded on the outer surface of the middle liner 22. Finally, the outer liner 23 is bonded or welded to the outer surface of the outer triangular prism layer 1 to form a composite tubular material as shown in FIGS. 7 and 8. The arrangement direction of the zigzag-shaped intermediate layer between adjacent triangular prism cylinder layers in this embodiment is the same as the axial direction of the tubular material. The tubular material with a triangular cavity structure has great strength and stiffness, When used in the field of machinery, it solves the problems of too large spans, poor rigidity of the shaft and inevitable deflection due to its own weight.

Referring to FIG. 9, the triangular prism cylinder layer of this embodiment adopts three layers, wherein the triangular prism direction of the inner triangular prism cylinder layer and the outer triangular prism cylinder layer is the same as the axial direction of the liner, and the manufacturing method is the same as the above implementation. Example is the same. The direction of the triangular prism of the middle triangular prism cylinder layer is spiral around the circumferential direction of the tube wall of the liner 22, and it is prefabricated. There are two liner layers 22, 23 between the adjacent zigzag-shaped intermediate layers 1 and 12, 12 and 13, respectively. The inner side of the zigzag-shaped intermediate layer 1 and the outer side of the zigzag-shaped intermediate layer 13 also have a liner respectively. The tube layers 2 and 24, the above-mentioned zigzag intermediate layers and the liners are bonded into an integrated composite tubular material according to the method described above. This embodiment has good strength and stiffness.

As an alternative, all zigzag intermediate layers and all liners can be made of plastic. As an alternative, all the zigzag intermediate layers can be made of rubber or other elastic materials, while the inner and outer lining pipes are made of corrosion-resistant and impact-resistant metal pipes or other non-metallic materials.

In addition, all zigzag intermediate layers and all liners can be made of paper. First, the zigzag-shaped intermediate layer is adhered to a lining layer, and then the lining layer is rolled into a tubular shape or bent into an arch shape, and then the outer lining tube is adhered, and they are adhered according to the method described in the above embodiment using paper as a material. Then cured. The curing agent can also be cured with epoxy resin, and can also be cured with various organic and inorganic adhesives, such as urea resin, unsaturated resin, cement, gypsum, etc. This embodiment has the advantages of small specific gravity, low cost, corrosion resistance, heat insulation, insulation, flame retardant, etc. Point, suitable for chemical industry and municipal engineering as a pipeline.

In all the above embodiments, if the cross-sectional shape of each triangular prism cylinder is approximated by a straight line, it may be an equilateral triangle or an isosceles triangle.

In the present invention, although the composite tubular material has been described only by way of illustration, those skilled in the art should know that the present invention is not limited to this, and the present invention can be made into an arch shape or an arc shape according to actual needs. And other various curved surface composite materials, and can be used in many fields such as construction and transportation.

In summary, the triangular cavity structure composite plate-like material and tubular material of the present invention are not only novel and practical, but their innovative combined design can indeed increase the strength and stiffness of the material, make the transmission of force more reasonable, and reduce It is more difficult to manufacture, reduces its own weight, lowers its cost, and enhances its thermal insulation performance. Its practical effect is far superior to the background technology, which is advanced.

Claims

Rights request

1. A triangular cavity structure composite material comprising a plurality of triangular prism cylinders, which is characterized in that the material has at least one triangular prism cylinder layer composed of a plurality of triangular prism cylinders arranged side by side, said triangular prism cylinders The layer includes a zigzag-shaped intermediate layer and a lining layer connected to the top corners of both sides of the zigzag-shaped intermediate layer. When including at least two layers of the triangular prism cylinder layer, the adjacent two layers and three The included angle of the prism arrangement direction of the prism cylinder layer is 0 ° to 90 °.

2. The composite material according to claim 1, characterized in that the material is a plate material, and the triangular prism cylinder layer comprises a zigzag-shaped intermediate layer and a flat lining layer connected to the top corners of both sides of the zigzag-shaped intermediate layer. .

3. The composite material according to claim 1, characterized in that the material is a tubular material or an arc-shaped material, and a pipe wall of the tubular material or the arc-shaped material includes at least one layer of the triangular prism layer, the triangular prism The cylinder layer includes a zigzag-shaped intermediate layer and a liner or arc-shaped lining which is tangent to and connected to the top corners of the inner and outer surfaces of the zigzag-shaped intermediate layer.

4. The composite material according to claim 1, wherein the zigzag intermediate layer in the material is equilateral zigzag.

5. The composite material according to any one of claims 1 to 4, characterized in that the material of the triangular prismatic cylinder layer is cured with paper through a curing agent.

6. The composite material according to any one of claims 1 to 4, wherein the material of the triangular prism layer is plastic or metal or other non-metallic material or a mixture of the foregoing materials.

7. A composite material according to any one of claims 1 to 2, characterized in that the zigzag-shaped intermediate layer of the triangular prism cylinder layer is made of an elastic material, and the upper surface or / and the lower surface of the plate-shaped composite material is The surface lining is made of metal plate.

8. A composite material according to claim 3, characterized in that the triangular prism arrangement direction of the triangular prism cylinder layer between the adjacent two layers is the same as the axial direction of the liner The same.

9. A composite material according to claim 3, characterized in that the triangular prism arrangement direction of the triangular prism cylinder layer between two adjacent layers forms a certain angle with the axis direction of the liner, especially One layer has a positive spiral around the tube wall and the other has a reverse spiral, forming a cross arrangement.

10. The use of a composite material with a triangular cavity structure, characterized in that the material of the triangular prism cylinder layer is cured by a curing agent using paper, and is used for the interior and exterior walls, ceilings and pillars of a building.