Basalt fiber heat insulation cushion and preparation method thereof
A technology of basalt fiber and a manufacturing method, which is applied in the field of thermal insulation structures, can solve the problems of rusting of engine covers, poor thermal insulation performance of metal pads, and no effective improvement, so as to ensure water vapor isolation performance, ensure thermal insulation performance, Dimensionally stable effect
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Embodiment 1
[0013] A basalt fiber heat-insulating soft pad, including a heat-insulating pad base 1 and at least one aluminum foil glass fiber gasket 2, the base 1 includes a basalt fiber needle felt 11 and two aluminum foil glass fiber cloths 12, 13, the two The aluminum foil fiberglass cloths 12 and 13 are attached to the two outer sides of the basalt fiber needle felt 11 respectively; In this embodiment, the aluminum foil fiberglass gasket 2 is pasted on the outer surface of the aluminum foil fiberglass cloth 12; wherein the aluminum foil fiberglass gasket 2 is provided with an installation hole 2a, and the heat insulation pad base 1 is formed with a The installation hole 2a communicates with and passes through the through hole 1a of the heat insulation pad base 1 .
Embodiment 2
[0015] This embodiment provides a method for manufacturing a basalt fiber heat-insulating cushion; it includes the following steps:
[0016] S1, provide one basalt fiber needle felt, two aluminum foil glass fiber cloths and at least one aluminum foil glass fiber spacer.
[0017] Among them, basalt fiber needle felt and aluminum foil glass fiber cloth can be purchased in the existing market, and special customization is not allowed;
[0018] Specifically, in this implementation, basalt fiber needle felt with a thickness of 2.0 mm and aluminum foil glass fiber cloth with a thickness of 0.2 mm are used; the aluminum foil glass fiber gasket is obtained by punching aluminum foil glass fiber cloth with a thickness of 1.0 mm.
[0019] S2, sandwiching the basalt fiber needle-punched felt between two aluminum foil glass fiber cloths, and fixing it by spraying glue to obtain a heat insulation pad base.
[0020] Specifically, in this embodiment, the spray glue used for bonding and fixin...
Embodiment 3
[0024] This embodiment provides a method for manufacturing a basalt fiber heat-insulating cushion, the manufacturing steps of which are basically the same as those in Embodiment 2, except that:
[0025] Basalt fiber needle felt with a thickness of 4.0 mm and aluminum foil glass fiber cloth with a thickness of 1 mm are used.
[0026] Install the basalt fiber heat-insulating cushion made according to Embodiment 2 and Embodiment 3 between the engine and the engine cover, perform a heat-insulation test, and compare it with the existing metal pad to obtain the following table:
[0027]
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