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

Inactive Publication Date: 2014-01-29
SUZHOU V I P NEW MATERIAL
10 Cites 29 Cited by

AI-Extracted Technical Summary

Problems solved by technology

The process is complex, tedious,...
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Abstract

The invention discloses a dry method extra-fine glass wool vacuum insulated panel core material and a preparation method thereof. The core material is completely composed of extra-fine glass fibers prepared through the centrifugal process and replaces a traditional vacuum insulated panel core material. According to the traditional vacuum insulated panel core material, glass fibers prepared through the flame process need to be added for achieving the low heat conductivity coefficient. The core material is directly and instantly formed in a hot-pressing mode in the centrifugal production process of extra-fine glass wool, and has the advantages of being low in heat conductivity coefficient, stable in structure and low in production cost.

Application Domain

Technology Topic

Hot pressingVacuum insulated panel +4

Examples

  • Experimental program(1)

Example Embodiment

[0025] Example
[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 instantaneous temperature of the molding is 650°C and the action time is 8 seconds. After molding, cool to room temperature and cut.
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Description & Claims & Application Information

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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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