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Honeycomb core for active cooling structure and preparation method thereof

An active cooling, honeycomb core technology, applied in chemical instruments and methods, lamination, layered products, etc., can solve the problems of weak rigid structure, cannot directly realize active cooling medium flow, difficult and other problems, achieve low density, cooling Good effect, high compressive strength effect

Pending Publication Date: 2022-01-11
AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The regular hexagonal structure adopted by the traditional honeycomb core, the core cells are usually independent of each other, and it is impossible to directly realize the flow of active cooling medium inside the honeycomb load-bearing structure, such as between the core cells
Moreover, the honeycomb structure is a weakly rigid structure, and it is difficult to process it after unfolding. If you want to form a connection between the cells, you can only drill holes near the two ends of the honeycomb channel.

Method used

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  • Honeycomb core for active cooling structure and preparation method thereof
  • Honeycomb core for active cooling structure and preparation method thereof
  • Honeycomb core for active cooling structure and preparation method thereof

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preparation example Construction

[0022] now refer to figure 1 , in which is shown a process flow diagram showing a method of manufacturing a honeycomb core for an actively cooled structure of the present invention. The preparation method of the present invention comprises five steps including cutting of the foil material, preparation of a laminated preform, preparation of a solidified preform, preparation of a drilled preform and unfolding of the drilled preform. Through the above five steps, the honeycomb core is thus produced.

[0023] Specifically, as described above, the present invention provides, in a first aspect, a method for preparing a honeycomb core for an actively cooled structure, the method comprising the following steps:

[0024] (1) Foil cutting: cut the foil according to the required size and quantity for subsequent laying;

[0025] (2) Preparation of laminated prefabricated body: glue is applied from the edge of the first layer of foil, the width W of the glue is equal to the length of the...

Embodiment 1

[0054] according to figure 1 As shown in the process flow chart, the preparation of the aluminum honeycomb core for actively cooling the load-carrying structure with a cell side length of 5mm is completed, and the process includes the following steps:

[0055] Step 1: Cutting the Foil

[0056] The aluminum alloy foil is cut into foils of the same size for later use. The grade of the aluminum alloy foil is 5A02, the thickness is 0.1mm, and the size is 20mm*1000mm (this size is used in all embodiments and comparative examples);

[0057] Step 2: Preparation of laminated prefabricated body

[0058] Apply glue from the edge of the first layer of aluminum alloy foil, with a width of 5mm and a distance of 15mm. The second layer of aluminum alloy foil is aligned with the edge of the first layer and laid on the first layer of aluminum alloy Glue on the foils and glue them together; start to apply glue at a distance of 10mm from the edge of the second layer of aluminum alloy foil, wit...

Embodiment 2

[0065] according to figure 1 The process flow chart shown completes the preparation of a titanium honeycomb core with a side length of 5 mm for active cooling of the load-carrying structure. The process includes the following steps:

[0066] Step 1: Cutting of the core layer

[0067] Cut the titanium alloy foil into the same size for later use, the grade of the titanium alloy foil is TA1, and the thickness is 0.06mm;

[0068] Step 2: Preparation of laminated prefabricated body

[0069] Apply glue from the edge of the first layer of titanium alloy foil with an adhesive width of 5 mm and a gap of 15 mm. The second layer of titanium alloy foil is aligned with the edge of the first layer and laid on the first layer of titanium alloy Glue on the foils and glue them together; apply glue from the second layer of titanium alloy foil at a distance of 10mm from the edge, with a glue width of 5mm and a glue interval of 15mm; after that, odd-numbered layers of titanium alloy foils will ...

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Abstract

The invention discloses a honeycomb core for an active cooling structure as well as a preparation method and an application of the honeycomb core. The preparation method comprises the steps of cutting of foil, preparation of a laminated and laid prefabricated body, preparation of a cured prefabricated body, preparation of a drilled prefabricated body, unfolding of the drilled prefabricated body and the like. The holes are drilled in the side wall of the honeycomb core material, mutual communication between cells of the closed honeycomb core is achieved, the honeycomb core material is applied to an active cooling structure, flowing of a cooling medium in the honeycomb core can be achieved, and the rapid cooling effect is achieved. The preparation method disclosed by the invention is simple in process, the problem that honeycomb core grids are closed is solved while the bearing capacity of the honeycomb structure is exerted, and the honeycomb core which can be used for an active cooling bearing structure is obtained.

Description

technical field [0001] The present invention relates to the technical field of honeycomb cores, in particular to a honeycomb core for active cooling structures, its preparation method and its application in active cooling structures, especially the application in the manufacture of sandwich structures with active cooling requirements. Background technique [0002] The honeycomb structure has excellent specific strength / rigidity, can meet the requirements of large loads with a small weight, and can greatly reduce the self-weight of the structure itself. At the same time, the honeycomb structure has the advantages of good structural stability, impact resistance and cushioning performance. [0003] Active cooling is a temperature control method that uses coolant to take away or block heat to ensure that the temperature of the structure does not exceed the allowable value. Usually active cooling adopts a hollow sandwich structure, and the hollow sandwich structure provides a ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B15/20B32B15/18B32B15/01B32B7/12B32B3/24B32B37/06B32B37/10B32B37/12B32B38/00B32B38/04
CPCB32B15/016B32B7/12B32B37/06B32B37/10B32B37/1284B32B38/00B32B38/04B32B15/01B32B15/011B32B3/266B32B2038/0076B32B2307/72
Inventor 陈明梁岳莹胡正阳丁宇升宋鹏
Owner AEROSPACE INST OF ADVANCED MATERIALS & PROCESSING TECH
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