Dry method extra-fine glass wool vacuum insulated panel core material and preparation method thereof
A technology of ultra-fine glass wool and vacuum insulation panels, applied in glass manufacturing equipment, heat exchange equipment, lighting and heating equipment, etc., can solve the problems of complex process, tedious, high production cost, etc., to reduce production cost and reduce product cost , to avoid the effect of high manufacturing cost
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[0026] Using 560kg waste glass, 96kg feldspar, 56kg dolomite, 32kg soda ash, 56kg borax as raw materials, after mechanical stirring with a stirring power of 6KW and a mixing and stirring time of 30min, a mixture with a particle size of 0.1mm-15mm is obtained. After the mixture is melted into molten glass in a furnace at 1380°C, it is introduced into a centrifugal disk with a rotation speed of 2500rad / min and a sidewall pore of 0.7mm at a flow rate of 250kg / h to form primary fibers. The primary fiber passes through the high-speed and high-temperature air traction with an air velocity of 500m / s and an air temperature of 750°C to form a centrifugal glass fiber with a fiber diameter of 2μm-4μm and a fiber length-to-diameter ratio of 1000-1500. The centrifugal glass fiber falls uniformly on the cotton collector with a power of 20 Hz under the action of the downward gravity fan, and is driven by the cotton collector to the laminating equipment for hot pressing. The ins...
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