MANUFACTURE OF VITREOUS FIBRE PRODUCTS

摘要

Man made vitreous fibres are made using a cascade of rotors (4, 5, 6, 7) from melt poured onto the top rotor (4) wherein the melt has a low viscosity (not more than 18 poise) at 1400 DEG C and has a viscosity of not more than 10 poise on the top rotor (4), the top rotor has an acceleration field of at least 30 km/sec<2>, and the second rotor (5) is arranged with its centre on a line with the centre of rotor (4) which makes an angle C of 0-20 DEG and has an acceleration field of 50 to 150 % of the field of the rotor (4), and the subsequent rotors (6, 7) have an acceleration field of 100 to 250 % of the acceleration field of the rotor (4).