Square cabin large board
An aluminum plate and inner panel technology, applied in the field of lightweight shelters, can solve the problems of reduced strength and rigidity, insufficient thermal insulation performance, and inability to meet the special needs of shelters, and achieve weight reduction, easy promotion, and simple structure Effect
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Embodiment 1
[0023] Such as Figure 1-3 As shown, a shelter slab, the shelter slab includes an inner panel 1 and an outer panel, an airgel 2 is arranged between the inner panel 1 and the outer panel, and the airgel 2 is connected to the inner panel respectively. The panel 1 is bonded to the outer panel; the outer panel includes an inner skin 3, an aluminum honeycomb core 4 and an outer skin 5, and the aluminum honeycomb core 4 is welded to the inner skin 3 and the outer skin 5 respectively. The inner skin 3 and the outer skin 5 are made of aluminum boards; the inner board 1 is made of decorative boards, and the decorative boards include aluminum boards, aluminum-plastic boards, and wood boards. The side of the inner panel 1 close to the outer panel is provided with a round frame 6, and the round frame 6 is a hollow structure. Described vertical frame 6 is fixedly connected with inner panel 1, and when vertical frame 6 and inner panel 1 are both metal, connect by welding; Through bonding,...
Embodiment 2
[0027] The airgel 2 in the described embodiment 1 adopts calcined diatomite as the silicon source, and its preparation method is specifically as follows:
[0028] S1. Preparation of calcined diatomite: pickling diatomite in 50% sulfuric acid at 100°C for 1 hour, calcining at 400-500°C for 2 hours, passing through a 200-mesh sieve to obtain calcined diatomite;
[0029] S2. Put the calcined diatomite in a 10% NaOH solution at 60-80° C. for 1.5 hours, perform suction filtration, and dilute the obtained filtrate with distilled water;
[0030] S3. Pour the diluted filtrate in S2 into an example exchange column equipped with a strong acidic styrene-based cation exchange resin. After the exchange, silicic acid is obtained. Add ammonia solution to adjust the pH of the silicic acid to 4.8-5.2, and stir evenly with a magnetic stirrer static gel;
[0031] S4. Put the gel in S3 in a water bath at 45° C. for aging for 3-5 hours, and dry to obtain an airgel prepared by using calcined diato...
Embodiment 3
[0034] The airgel 2 in the described embodiment 1 adopts calcined diatomite as a reinforcing material, and its preparation method is specifically as follows:
[0035] S1. Pickling diatomite in 50% sulfuric acid at 100°C for 1 hour, calcining at 400-500°C for 2 hours, passing through a 200-mesh sieve to obtain calcined diatomite;
[0036] S2. Calcined diatomaceous earth and sol are prepared into a wet gel mixed with calcined diatomite and sol, and the wet gel is aged in a water bath at 45°C for 3-5 hours. After drying, calcined diatomite is obtained. Aerogels prepared as silicon sources.
[0037] In this embodiment, the silicon source of the airgel is sodium silicate, methyl orthosilicate (TMOS), trimethylethoxysilane (TMES) and the like.
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