Multi-layer heat insulation pad
A technology of multi-layer heat insulation and heat insulation pad, applied in the direction of hexagonal lathes, lathes, etc., can solve the problems of complex processing of metal sleeves, reduced thermal resistance, and difficulty in matching the size of metal sleeves, so as to improve the heat insulation effect and meet the The effect of structural strength and simple structure
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[0024] The multi-layer insulation pad of the present invention will be further described below with reference to the accompanying drawings.
[0025] Such as figure 1 , 2 As shown, the multilayer insulation pad of the present invention used in a satellite includes an upper layer insulation pad 1, a middle layer insulation pad 2, a lower layer insulation pad 5 and a coating layer 3. The shape of the upper heat insulation pad 1, the middle heat insulation pad 2, and the lower heat insulation pad 5 may be a circle, an ellipse, etc., and it is a circle in this embodiment.
[0026] The material thermal conductivity of the upper heat insulation pad 1, the middle heat insulation pad 2 and the lower heat insulation pad 5 is ≤1W / m.K, and the elastic modulus is ≥4GPa. The thickness of the upper and lower insulation pads is 0.5 to 1.5 mm. In this embodiment, the upper insulation pad 1 and the lower insulation pad 5 are both 1.5 mm thick epoxy phenolic laminated glass cloth sheet gaskets.
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