Patent ID: 8414807

Claim:
A method of production of high silicate fibers of rocks comprising the operations of rock charging into a melting furnace, melting, melt homogenization and stabilization, drawing fibers from the melt discharged from the discharge orifice bushing, characterized in that silicon-based rocks are used as raw materials, when the melt is formed from the same, the melt temperature is brought to 1750 to 1850° C., and after melt homogenization and stabilization the decompression zone is formed on the path of the melt flow to the discharge orifice bushing at the specified temperature, the melt flow in the decompression zone is shaped into a strip 3.0 to 20.0 mm thick and passed through the zone with the rate of V=(7)10 −4 m/s to (9)10 −4 m/s, and the air pressure above the flow in the decompression zone is maintained within the range of 0.10 to 0.30 Pa.