The production process of glass wool roll felt involves several steps, from raw material selection to the final product. Here's a detailed description of the typical manufacturing process:
Raw Material Selection:
Glass wool is made from silica sand, limestone, soda ash, and recycled glass. These materials are chosen for their thermal and acoustic insulation properties.
Melting:
The raw materials are melted in a furnace at temperatures around 1,400-1,600°C (2,552-2,912°F) to form molten glass.
Fiber Formation:
The molten glass is then spun into fibers using a process called centrifugal spinning or blowing. High-speed spinning wheels or air jets break the molten glass into fine strands.
Binding Agent Addition:
To improve the cohesion and integrity of the glass wool fibers, a binding agent (usually phenolic resin or formaldehyde-free resin) is added. This agent helps the fibers stick together and maintain their shape during handling and installation.
Formation of the Mat:
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