Tool capable of uniformizing flow field and used for preparing flaky composite material

Abstract

A tool capable of uniformizing a flow field and used for preparing a flaky composite material comprises a box body and a flaky part detachably fixed in the box body, and an upper air dispersing plate is installed on the upper side of the box body and fixed through a top frame; a lower air dispersing plate is mounted on the lower side of the box body and is fixed through a bottom frame; a gas inlet is formed in the middle of the bottom frame; a gas outlet is formed in the middle of the top frame; the upper air dispersing plate and the lower air dispersing plate are each provided with an air dispersing hole set corresponding to the sheet-shaped piece in position. The vent hole group consists of a plurality of vent holes which are arranged along the sheet-shaped piece at equal intervals; and the area of the center of the lower gas dispersing plate, which directly faces the gas inlet, is not provided with a gas dispersing hole. When the chemical vapor deposition technology is used for preparing the sheet-shaped composite material, the sheet-shaped piece is clamped and fixed through the sheet-shaped piece clamping device, gas can evenly flow through the two sides of the sheet-shaped piece and evenly react on the surface of the sheet-shaped piece to generate sediment, and the problem that the overall density of the sheet-shaped composite material is not uniform or the coating thickness is not uniform is solved.

Description

Technical Field

[0001] This utility model relates to the field of chemical vapor deposition technology, specifically to a tooling for preparing sheet-like composite materials that can achieve uniform flow field. Background Technology

[0002] When preparing sheet-like composite materials using chemical vapor deposition (CVD), the sheet-like parts are usually clamped and fixed using tooling. Under high temperature conditions, gas flows through the sheet-like parts and reacts on the surface of the parts to form deposits. However, sheet-like composite materials prepared using existing technologies have problems such as uneven overall density or uneven coating thickness. The main reason for this problem is that the gas flow field on both sides of the sheet-like parts is uneven during deposition. Utility Model Content

[0003] The purpose of this invention is to solve the problem of providing a tooling technology that can uniformly distribute the gas flow field on both sides of a sheet-like component.

[0004] To solve the above-mentioned technical problems, the present invention provides a technical solution for a tooling device capable of producing a uniform flow field for the preparation of sheet-like composite materials:

[0005] The device includes a housing and sheet-like components that are detachably fixed inside the housing. An upper diffuser plate is installed on the upper side of the housing and fixed by a top frame; a lower diffuser plate is installed on the lower side of the housing and fixed by a bottom frame; a gas inlet is provided in the middle of the bottom frame, and a gas outlet is provided in the middle of the top frame; both the upper and lower diffuser plates have groups of diffuser holes corresponding to the positions of the sheet-like components; each group of diffuser holes consists of multiple diffuser holes arranged at equal intervals along the sheet-like components; no diffuser holes are provided in the area of ​​the center of the lower diffuser plate directly opposite the gas inlet.

[0006] The gas inlet is trapezoidal in shape, narrow at the bottom and wide at the top.

[0007] The box body is fitted with an upper clamping plate and a lower clamping plate; the sheet-like component is inserted between the upper clamping plate and the lower clamping plate.

[0008] The box contains five equidistantly arranged sheet-like parts, and each of the upper and lower air diffuser plates has five sets of air diffuser holes.

[0009] The enclosure is composed of two long side panels arranged front and back and two short side panels arranged left and right.

[0010] The technical effect that this utility model can achieve is: when using chemical vapor deposition technology to prepare sheet-like composite materials, using this utility model to clamp and fix the sheet-like parts allows the gas to flow evenly across both sides of the sheet-like parts and react evenly on the surface of the sheet-like parts to generate deposits, thereby improving the problem of uneven overall density or uneven coating thickness of sheet-like composite materials. Attached Figure Description

[0011] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0012] Figure 1 This is a cross-sectional view of a tooling for preparing sheet composite materials that can achieve uniform flow field according to this utility model.

[0013] Figure 2 This is a longitudinal sectional view of a tooling for preparing sheet composite materials that can achieve uniform flow field according to this utility model.

[0014] Figure 3 This is an exploded view of a tooling for preparing sheet-like composite materials that can achieve uniform flow field according to this utility model.

[0015] Figure 4 This is a schematic diagram of the structure when the sheet-like component is facing the lower air diffuser.

[0016] Figure 5 This is a schematic diagram of the structure when the sheet-like component is directly facing the air diffuser plate. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings.

[0018] See Figures 1 to 5 .

[0019] A tooling for preparing sheet composite materials with uniform flow field includes a box and a sheet component 11 that can be detachably fixed inside the box. The box is composed of two long side plates 21 arranged front and back and two short side plates 22 arranged left and right. An upper clamping plate 12 and a lower clamping plate 13 are inserted into the box, and the sheet component 11 is inserted between the upper clamping plate 12 and the lower clamping plate 13.

[0020] An upper diffuser plate 1 is installed on the upper side of the housing and fixed by a top frame 2; a lower diffuser plate 3 is installed on the lower side of the housing and fixed by a bottom frame 4; a gas inlet 5 is opened in the middle of the bottom frame 4, and a gas outlet 6 is opened in the middle of the top frame 2; the combination of the bottom frame 4, the top frame 2, the long side plate 21, and the short side plate 22 is intended to ensure unidirectional gas flow (i.e., gas flows in from the gas inlet 5 and then flows out from the gas outlet 6), and the gas flow direction within the fixture is as follows: Figure 2 As shown, fixing the flow space and direction of the gas can increase the utilization rate of the gas.

[0021] The gas inlet 5 is trapezoidal in shape, narrower at the bottom and wider at the top; both the upper diffuser plate 1 and the lower diffuser plate 3 are provided with diffuser hole groups corresponding to the positions of the sheet-like component 11. The diffuser hole groups consist of multiple diffuser holes 7 arranged equidistantly along the sheet-like component 11 (the specific number of diffuser holes 7 is referenced). Figure 4 , 5As shown), no ventilation holes 7 are provided in the area directly opposite the gas inlet 5 at the center of the lower diffuser plate 3 (see reference). Figure 3 , 4 ).

[0022] The gas inlet 5 is trapezoidal in shape, narrower at the bottom and wider at the top. An upper diffuser plate 1 and a lower diffuser plate 3 are placed there. No gas dispersion holes 7 are drilled in the area of ​​the lower diffuser plate 3 directly opposite the gas inlet 5. This is to define the gas flow path, prevent gas from directly impacting the sheet-like component 11, and disperse the gas. Equally spaced gas dispersion holes are drilled on the upper diffuser plate 1 and the lower diffuser plate 3, ensuring that the upper and lower diffuser holes 7 are directly opposite the sheet-like component 11. Figure 2 , 4 As shown in Figure 5, the purpose is to ensure that the gas can be evenly distributed to both sides of each sheet 11 after dispersion, and that the gas can flow evenly across both sides of the sheet 11 and react evenly on the surface of the sheet 11 to generate deposits, thereby improving the problem of uneven overall density or uneven coating thickness of the sheet composite material.

[0023] Preferably, the box of this utility model has five equidistantly arranged sheet-like parts 11 that can be detachably fixed inside, and five sets of air dissipation holes are opened on the corresponding upper air dissipation plate 1 and lower air dissipation plate 3.

Claims

1. A tooling for preparing sheet composite materials with uniform flow field, comprising a housing and a sheet component (11) detachably fixed within the housing, characterized in that: The upper diffuser plate (1) is installed on the upper side of the box and fixed by the top frame (2); the lower diffuser plate (3) is installed on the lower side of the box and fixed by the bottom frame (4); the bottom frame (4) has a gas inlet (5) in the middle and the top frame (2) has a gas outlet (6) in the middle; both the upper diffuser plate (1) and the lower diffuser plate (3) have a group of diffuser holes corresponding to the position of the sheet (11); the group of diffuser holes consists of a plurality of diffuser holes (7) arranged equidistantly along the sheet (11); no diffuser holes (7) are opened in the area of ​​the center of the lower diffuser plate (3) directly opposite the gas inlet (5); the gas inlet (5) is trapezoidal in shape, narrow at the bottom and wide at the top.

2. The tooling for preparing sheet-like composite materials with a uniform flow field according to claim 1, characterized in that: The box body is fitted with an upper clamping plate (12) and a lower clamping plate (13); the sheet-like piece (11) is inserted between the upper clamping plate (12) and the lower clamping plate (13).

3. The tooling for preparing sheet-like composite materials with a uniform flow field according to claim 1, characterized in that: The box is detachably fixed with five equally spaced sheet-like parts (11), and the corresponding upper air diffuser plate (1) and lower air diffuser plate (3) are provided with five sets of air diffuser holes.

4. A tooling for preparing sheet-like composite materials with a uniform flow field according to claim 1 or 2, characterized in that: The box body is composed of two long side plates (21) arranged front and back and two short side plates (22) arranged left and right.

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