Manufacturing method for novel vacuum thermal insulation plate
A vacuum insulation panel, a new type of technology, is applied in heat exchange equipment, mechanical equipment, and pipelines through heat insulation protection. It can solve the problems of air leakage in the expansion bag, bulging of the wall, and loss of thermal insulation performance, so as to achieve enhanced strength and enhanced The effect of puncture resistance
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Embodiment 1
[0035] The invention provides a novel method for preparing a vacuum insulation panel, comprising the following steps:
[0036] S1. Dry the insulation core material at 210°C for 100 minutes, put it into an inner barrier bag, and then vacuumize it. The vacuum degree of vacuuming is 0.01Pa, and seal it to obtain an inner vacuum insulation board;
[0037] S2. Place the inner vacuum insulation panel prepared in S1 between two pieces of plate-shaped insulation materials to obtain an inner core;
[0038] S3. Put the inner core prepared in S2 into the outer barrier bag, vacuumize the vacuum to a degree of 100 Pa, seal, and integrate the core film to obtain a vacuum insulation board. The temperature of the integrated treatment of the core film is 180° C., and the time is 12 minutes.
[0039] The insulation core material in S1 is glass fiber with a thickness of 40 mm and a thermal expansion ratio of 1%.
[0040] The plate-shaped insulation material in S2 is AB inorganic composite fibe...
Embodiment 2
[0044] The invention provides a novel method for preparing a vacuum insulation panel, comprising the following steps:
[0045] S1. Dry the insulation core material at 170°C for 130 minutes, put it into an inner barrier bag, and vacuumize it. The vacuum degree of vacuuming is 0.003Pa, and seal it to obtain an inner vacuum insulation board;
[0046] S2. Place the inner vacuum insulation panel prepared in S1 between two pieces of plate-shaped insulation materials to obtain an inner core;
[0047] S3. Put the inner core prepared in S2 into the outer barrier bag, vacuumize the vacuum to a degree of 1 Pa, seal, and integrate the core and film to obtain a vacuum insulation board. The temperature of the integrated treatment of the core film is 230° C., and the time is 5 minutes.
[0048] The insulation core material in S1 is an airgel felt with a thickness of 28mm and a thermal expansion ratio of 0.5%.
[0049] The plate-shaped insulation material in S2 is a glass fiber composite pl...
Embodiment 3
[0053] The invention provides a novel method for preparing a vacuum insulation panel, comprising the following steps:
[0054] S1. Dry the insulation core material at 260°C for 30 minutes, put it into an inner barrier bag, and vacuumize it. The vacuum degree of vacuuming is 0.8Pa, and seal it to obtain an inner vacuum insulation board;
[0055] S2. Place the inner vacuum insulation panel prepared in S1 between two pieces of plate-shaped insulation materials to obtain an inner core;
[0056] S3. Put the inner core prepared in S2 into the outer barrier bag, vacuumize to a degree of 700 Pa, seal, and integrate the core and film to obtain a vacuum insulation panel. The temperature of the integrated treatment of the core film is 150° C., and the time is 16 minutes.
[0057] The insulation core material in S1 is AB inorganic composite fiberboard with a thickness of 6 mm and a thermal expansion ratio of 0.1%.
[0058] The plate-shaped insulation material in S2 is aluminum silicate fi...
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