A process for three-dimensionally weaving a plate with channels and the plate

Abstract

The present invention discloses a process and a plate for three-dimensionally weaving a plate with channels, comprising: arranging yarns on a three-dimensional weaving base according to the shape of the plate, not arranging yarns in the empty positions of the channels, and weaving the plate with channels in three dimensions according to a four-step method. In the present invention, a three-dimensional weaving plate with channels is made using three-dimensional weaving technology. This plate has good structural integrity and strong load-bearing performance. It will not delaminate after being subjected to force. The design of its channels can reduce the weight of the plate while also having the function of thermal insulation. Furthermore, the shape, arrangement, and number of the channels in the present invention can be designed according to the working conditions of the product, which is conducive to reasonably improving the mechanical contribution rate of the fiber. The plate with channels of the present invention has high specific strength and high specific modulus, and can be matched with the selection of materials to meet the needs of aerospace, rail transportation, sports and leisure, construction and other fields for different composite material plates.

Description

Technical Field

[0001] The present invention belongs to the field of weaving technology, and in particular relates to a process for three-dimensionally weaving a plate with channels and a plate. Background Art

[0002] Textile composites, due to their inherent lightweight, high-strength, and corrosion-resistant properties, are ideal alternatives to metal materials. Three-dimensional weaving, a key preform forming process for textile composites, offers advantages such as good integrity, integrated molding of special-shaped structures, and impact resistance.

[0003] 3D woven composite channel panels are suitable for applications such as lightweight and high-temperature resistant composite panels. The channel structure further reduces the weight of the composite material and can also serve as a channel for coolant or air, further improving the composite's heat resistance. They can replace honeycomb panels for lightweight insulation and can also be used in high-temperature cladding for aircraft. During supersonic or hypersonic flight, coolant or air can be used to lower component temperatures, providing thermal protection. Furthermore, the channels can serve as space for pipelines, facilitating their inspection and replacement.

[0004] Existing composite material panels are all fabric laminates. Hollow composite material panels are structures with upper and lower panels sandwiched between honeycomb panels or corrugated panels. There is no fiber reinforcement between layers, the load-bearing capacity is poor, and delamination damage is easy to occur during use.

[0005] Currently, there is a high demand for composite sheet materials in aerospace, rail transportation, construction, and other fields, primarily in the form of laminated panels. Laminated panels are prone to delamination and failure when subjected to stress or heat, making it difficult to meet the load-bearing and heat-resistant requirements of composite sheet materials in various fields. Therefore, the research and development of composite sheet materials with excellent integrity and high temperature resistance is of great significance to the development of my country's new materials and equipment fields.

[0006] In view of this, the present invention is proposed. Summary of the Invention

[0007] The object of the present invention is to provide a process for three-dimensionally weaving a plate with channels and a plate, so as to achieve the purpose of obtaining a plate with good integrity, one-piece molding of a special-shaped structure and strong impact resistance.

[0008] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0009] A process for three-dimensionally weaving a plate with channels. Yarns are arranged on a three-dimensional weaving base according to the shape of the plate. Yarns are not arranged in the empty positions of the channels. The plate with channels is woven according to a three-dimensional four-step method.

[0010] Furthermore, according to the length and width of the cross-section of the plate, the yarns are arranged on the weaving base in an m-row and n-column arrangement to form an m*n array, and there are empty areas in the m*n array where the yarns are not arranged. The plate with a channel is woven according to the three-dimensional four-step method.

[0011] Furthermore, according to the positions and the number of channels on the cross section of the plate, vacant areas corresponding to the number of channels are formed at corresponding positions in the m*n array.

[0012] Furthermore, according to the shape and size of the channel on the cross section of the plate, a vacant area of ​​corresponding shape and size is formed in the m*n array.

[0013] Furthermore, the shape of the channel includes rectangle, circle, and triangle.

[0014] Furthermore, the number of the channels includes one or more.

[0015] Furthermore, the three-dimensional weaving of the plate with the channel according to the four-step method includes:

[0016] (1) forming an m*n array on a weaving base in an arrangement of m rows and n columns, with a vacant area in the m*n array where no yarn is arranged, arranging the yarns in each row in a left-right staggered manner and arranging the yarns in each column in a top-bottom staggered manner;

[0017] (2) Move all columns except the edge columns upward or downward;

[0018] (3) Left and right offset movement of all rows except edge rows and rows occupied by empty areas;

[0019] (4) Up and down offset movement of the columns at the edge of the vacant area;

[0020] (5) All rows occupied by the left and right offset moving empty areas;

[0021] (6) Move all columns except edge columns and columns occupying vacant areas upward or downward;

[0022] (7) Left and right offset movement of the rows at the edge of the empty area;

[0023] (8) Non-edge columns occupied by the upper and lower staggered moving vacant areas;

[0024] (9) Left and right offset movement of all rows except the edge rows;

[0025] (10) Repeat steps (2) to (9) to obtain a plate with channels.

[0026] Furthermore, in step (1), the rows and columns of the yarns are marked, and the rows and columns of the edges of the vacant areas are marked.

[0027] The present invention also provides a plate with channels, which is woven using any of the processes described in the above technical solutions.

[0028] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art.

[0029] In the present invention, a three-dimensional woven plate with channels is made using three-dimensional weaving technology. This plate has good structural integrity and strong load-bearing performance. It will not delaminate after being subjected to force. The design of its channels can reduce the weight of the plate while also having the function of thermal insulation. Furthermore, the shape, arrangement, and number of the channels in the present invention can be designed according to the product's operating conditions, which is conducive to reasonably improving the mechanical contribution rate of the fiber.

[0030] The plate with channels of the present invention has high specific strength and high specific modulus, and can be matched with the selection of materials to meet the needs of aerospace, rail transportation, sports and leisure, construction and other fields for different composite material plates.

[0031] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without inventive effort. In the accompanying drawings:

[0033] Figure 1 , a schematic diagram of the cross-sectional structure of a plate having five channels in the present invention;

[0034] Figure 2 , the initial yarn arrangement diagram of Example 1;

[0035] Figure 3 , the yarn arrangement diagram after the movement of step (2) of Example 1 is completed;

[0036] Figure 4 , the yarn arrangement diagram after the movement of step (3) of Example 1 is completed;

[0037] Figure 5 , the yarn arrangement diagram after the movement of step (4) of Example 1 is completed;

[0038] Figure 6 , the yarn arrangement diagram after the movement of step (5) of Example 1 is completed;

[0039] Figure 7, the yarn arrangement diagram after the movement of step (6) of Example 1 is completed;

[0040] Figure 8 , the yarn arrangement diagram after the movement of step (7) of Example 1 is completed;

[0041] Figure 9 , the yarn arrangement diagram after the movement of step (8) of Example 1 is completed;

[0042] Figure 10 , the yarn arrangement diagram after the movement of step (9) of Example 1 is completed;

[0043] Figure 11 , the initial yarn arrangement diagram of Example 2;

[0044] Figure 12 , the yarn arrangement diagram after the movement of step (2) of Example 2 is completed;

[0045] Figure 13 , the yarn arrangement diagram after the movement of step (3) of Example 2 is completed;

[0046] Figure 14 , the yarn arrangement diagram after the movement of step (4) of Example 2 is completed;

[0047] Figure 15 , the yarn arrangement diagram after the movement of step (5) of Example 2 is completed;

[0048] Figure 16 , the yarn arrangement diagram after the movement of step (6) of Example 2 is completed;

[0049] Figure 17 , the yarn arrangement diagram after the movement of step (7) of Example 2 is completed;

[0050] Figure 18 , the yarn arrangement diagram after the movement of step (8) of Example 2 is completed;

[0051] Figure 19 , the yarn arrangement diagram after the movement of step (9) of Example 2 is completed.

[0052] In the picture:

[0053] 1. Plate; 2. Channel.

[0054] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0056] In the description of the present invention, it should be noted that the terms "up", "down", "front", "back", "left", "right", "vertical", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0057] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; and direct or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0058] The present invention provides a process for three-dimensionally weaving a sheet material with channels. Yarns are arranged on a three-dimensional weaving base according to the sheet material's shape, leaving vacant channel spaces unused. The sheet material with channels is woven using a three-dimensional four-step method. The shape, number, size, and layout of the channels can be designed appropriately based on practical needs. The channel shapes in the present invention include rectangular, circular, and triangular. The number of channels can be one or more.

[0059] For example, Figure 1 As shown, the present invention can be woven according to a three-dimensional four-step method to form a plate with five channels 2, the channels 2 are evenly distributed on the plate 1, and the channels 2 are rectangular.

[0060] In the present invention, a three-dimensional woven plate with channels is made using three-dimensional weaving technology. This plate has good structural integrity and strong load-bearing performance. It will not delaminate after being subjected to force. The design of its channels can reduce the weight of the plate while also having the function of thermal insulation. Furthermore, the shape, arrangement, and number of the channels in the present invention can be designed according to the product's operating conditions, which is conducive to reasonably improving the mechanical contribution rate of the fiber.

[0061] The plate with channels of the present invention has high specific strength and high specific modulus, and can be matched with the selection of materials to meet the needs of aerospace, rail transportation, sports and leisure, construction and other fields for different composite material plates.

[0062] Example 1

[0063] In this embodiment, a plate with two channels is prepared. The specific weaving steps are as follows:

[0064] (1) A 9*59 array is formed on the weaving base in the arrangement of 9 rows and 59 columns, and there are two empty areas in the 9*59 array where no yarn is arranged. The empty space in each empty area is a 3*11 array. The yarns in each row are arranged in a staggered manner left and right, and the yarns in each column are arranged in a staggered manner up and down, forming the following: Figure 2 The initial yarn arrangement diagram shown;

[0065] (2) Move the other columns except the edge columns in an upward or downward offset manner; that is, move the other columns except A1 and A60 in an upward or downward offset manner. The yarn arrangement diagram after the movement is completed is as follows: Figure 3 As shown;

[0066] (3) Move the other rows except the edge rows and the rows occupied by the empty area to the left and right; that is, move the rows B2, B3, B8, and B9 to the left and right. The yarn arrangement diagram after the movement is completed is as follows Figure 4 As shown;

[0067] (4) Move the rows at the edge of the empty area in an upward and downward offset manner; that is, move the rows A11, A22, A39, and A50 in an upward and downward offset manner. The yarn arrangement diagram after the movement is completed is as follows: Figure 5 As shown;

[0068] (5) All rows occupied by the empty area are shifted to the left and right; that is, rows B4, B5, B6, and B7 are shifted to the left and right. The yarn arrangement diagram after the shift is completed is as follows Figure 6 As shown;

[0069] (6) Move the other columns except the edge columns and the columns occupied by the empty area in the upper and lower offset positions; that is, move the columns A2-A10, A23-A38, and A51-59 in the upper and lower offset positions. The yarn arrangement diagram after the movement is completed is as follows: Figure 7 As shown;

[0070] (7) Move the rows at the edge of the empty area to the left and right; that is, move B4 and B7 to the left and right. The yarn arrangement diagram after the movement is completed is as follows: Figure 8 As shown;

[0071] (8) Non-edge columns occupied by the vacant areas of the upper and lower offset movements; that is, the upper and lower offset movements A12-A21, A40-A49, the yarn arrangement diagram after the movement is completed is as follows Figure 9 As shown;

[0072] (9) Move all rows except the edge rows in a left or right offset manner; that is, move B2, B3, B5, B6, B8, and B9 in a left or right offset manner. The yarn arrangement diagram after the movement is completed is as follows: Figure 10 As shown;

[0073] (10) Repeat steps (2) to (9) to obtain a plate with dual channels.

[0074] In step (1) of this embodiment, the rows and columns of the yarns are marked, and the rows and columns at the edges of the vacant areas are marked to facilitate the smooth progress of the weaving process.

[0075] Example 2

[0076] In this embodiment, a plate with three channels is prepared. The specific weaving steps are as follows:

[0077] (1) A 31*63 array is formed on the weaving base in the arrangement of 31 rows and 63 columns, and the 31*63 array has three empty areas where no yarn is arranged. The empty space in each empty area is a 21*11 array. The yarns in each row are arranged in a staggered manner left and right, and the yarns in each column are arranged in a staggered manner up and down, forming the following: Figure 11 The initial yarn arrangement diagram shown;

[0078] (2) Move the other columns except the edge columns in an upward and downward offset manner; that is, move the other columns except A1 and A64 in an upward and downward offset manner. The yarn arrangement diagram after the movement is completed is as follows: Figure 12 As shown;

[0079] (3) Move all rows except the edge rows and rows occupied by the empty area to the left or right; that is, move rows B2-B5 and B28-B31 to the left or right. The yarn arrangement diagram after the movement is completed is as follows: Figure 13 As shown;

[0080] (4) Move the rows at the edge of the empty area in an upward and downward offset manner; that is, move the rows A9, A20, A27, A38, A45, and A56 in an upward and downward offset manner. The yarn arrangement diagram after the movement is completed is as follows: Figure 14 As shown;

[0081] (5) All rows occupied by the empty area are shifted left and right; that is, rows B6-B27 are shifted left and right. The yarn arrangement diagram after the shift is completed is as follows Figure 15 As shown;

[0082] (6) Move the other columns except the edge columns and the columns occupied by the empty area in the upper and lower offset positions; that is, move the columns A2-A8, A21-A26, A39-A44, and A57-A63 in the upper and lower offset positions. The yarn arrangement diagram after the movement is completed is as follows: Figure 16 As shown;

[0083] (7) Move the rows at the edge of the empty area to the left and right; that is, move rows B6 and B27 to the left and right. The yarn arrangement diagram after the movement is completed is as follows: Figure 17 As shown;

[0084] (8) Non-edge columns occupied by the vacant areas of the upper and lower offset movements; that is, the upper and lower offset movements of A10-A19, A28-A37, and A46-A55, the yarn arrangement diagram after the movement is completed is as follows Figure 18 As shown;

[0085] (9) Move all rows except the edge rows in a left or right offset manner; that is, move rows B2-B5, B7-B26, and B28-B31 in a left or right offset manner. The yarn arrangement diagram after the movement is completed is as follows: Figure 19 As shown;

[0086] (10) Repeat steps (2) to (9) to obtain a plate with three channels.

[0087] In step (1) of this embodiment, the rows and columns of the yarns are marked, and the rows and columns at the edges of the vacant areas are marked to facilitate the smooth progress of the weaving process.

[0088] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as above in terms of a preferred embodiment, it is not intended to limit the present invention. Any technician familiar with this patent can make slight changes or modifications to equivalent embodiments using the above technical content without departing from the scope of the technical solution of the present invention. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A process for three-dimensionally weaving a plate having channels, characterized in that: According to the length and width of the cross section of the plate, the yarns are arranged on the weaving base in an m*n array in an m-row and n-column arrangement, and the vacant positions of the channels in the m*n array are not arranged with yarns. The plate with channels is woven according to the three-dimensional four-step method; The three-dimensional weaving method for forming a plate with a channel according to the three-dimensional four-step method includes: (1) An m*n array is formed on a weaving base in an arrangement of m rows and n columns, and there are empty areas in the m*n array where no yarn is arranged. The yarns in each row are arranged in a left-right staggered manner, and the yarns in each column are arranged in a top-bottom staggered manner. (2) Move all columns except the edge columns upward or downward; (3) Left and right shifting of rows other than edge rows and rows occupied by empty areas; (4) Up and down offset movement of the columns at the edge of the vacant area; (5) All rows occupied by the left and right offset moving empty areas; (6) Move up and down the columns except for the edge columns and the columns occupying the empty area; (7) Left and right offset movement of the rows at the edge of the empty area; (8) Non-edge columns occupied by the up and down offset moving vacant areas; (9) Left or right shifting of all rows except the edge rows; (10) Repeat steps (2) to (9) to obtain a plate with channels.

2. The process for three-dimensionally weaving a plate having channels according to claim 1, characterized in that: According to the positions and the number of channels on the cross section of the plate, vacant areas corresponding to the number of channels are formed at corresponding positions in the m*n array.

3. The process for three-dimensionally weaving a plate with channels according to claim 1, characterized in that: According to the shape and size of the channel on the cross section of the plate, a vacant area of ​​corresponding shape and size is formed in the m*n array.

4. A process for three-dimensionally weaving a plate having channels according to any one of claims 1 to 3, characterized in that: The shape of the channel includes rectangle, circle and triangle.

5. A process for three-dimensionally weaving a plate having channels according to any one of claims 1 to 3, characterized in that: The number of channels includes one or more.

6. A process for three-dimensionally weaving a plate having channels according to any one of claims 1 to 3, characterized in that: In the step (1), the rows and columns of the yarns are marked, and the rows and columns of the edges of the vacant areas are marked.

7. A plate with a channel, characterized in that: It is woven using the process described in any one of claims 1 to 6.

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