Lightweight thermal control device for satellite and manufacturing method thereof
A manufacturing method and lightweight technology, which can be used in chemical instruments and methods, thermal protection devices for aerospace vehicles, aerospace safety/emergency devices, etc., and can solve the problem of high temperature at the phase transition point.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0032] The invention provides a manufacturing method of a lightweight thermal control device for satellites, such as Figure 1-3 shown, including the following steps:
[0033] Step A, preparing a high thermal conductivity carbon-based composite phase change material, including:
[0034] Step A-1: forming graphite worms through high-purity flake graphite through high-temperature acidification, high-temperature expansion, water washing and drying;
[0035] Step A-2: Pressing the graphite worms into a porous graphite heat-conducting carrier, and the prepared porous graphite heat-conducting carrier has a porosity of 65%-85%. Porous graphite is used as a phase change material to enhance heat transfer. It has good wettability with the two phases of the phase change material. Through the unique grid-like pore structure of porous graphite and the capillary force of the micropores, the molten paraffin phase change material is very good. It is easy to be adsorbed and filled into the...
Embodiment 2
[0042] This embodiment 2 is formed on the basis of embodiment 1. By setting a thermal conductive coating on the surface of the upper and lower shells in contact with the high thermal conductivity carbon-based composite phase change material, the contact thermal resistance is reduced, and at the same time, the packaging process is optimized to effectively improve the performance of the star. Thermal conductivity of lightweight thermal control devices.
[0043] Such as Figure 1-3 As shown, after the aluminum alloy material is made into the upper shell 2 and the lower shell 3 through the whole machine process, at least one of the inner surface of the upper shell 2 and the inner surface of the lower shell 3 is coated with a thermally conductive coating to reduce the Contact thermal resistance, improve thermal conductivity. Here, the inner surface of the upper shell 2 or the inner surface of the lower shell both refer to the surface in contact with the high thermal conductivity c...
Embodiment 3
[0046] This embodiment 3 is a lightweight thermal control device for satellites formed on the basis of embodiment 1 or embodiment 2, and adopts the manufacturing method of any lightweight thermal control device for satellites in embodiment 1 or embodiment 2 made, such as Figure 1-3 As shown, it includes a high thermal conductivity carbon-based composite phase change material 1 , an upper shell 2 and a lower shell 3 .
[0047] High thermal conductivity carbon-based composite phase change material 1 is made of graphite and paraffin. The variable material 1 is filled and encapsulated between the upper shell 2 and the lower shell 3 . Preferably, after the aluminum alloy material is made into the upper shell 2 and the lower shell 3 through the whole machine process, at least one of the inner surface of the upper shell 2 and the inner surface of the lower shell 3 is coated with a silicone rubber heat-conducting coating , to reduce thermal contact resistance and improve thermal co...
PUM
| Property | Measurement | Unit |
|---|---|---|
| Density | aaaaa | aaaaa |
| Latent heat of phase change | aaaaa | aaaaa |
| Density | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More