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: The fi