FIELD: mineral fibers. SUBSTANCE: basalt mineral is entered into melting zone, heated to 1605-1700 C to form melt, which is transferred into homogenizing zone, wherefrom homogenized melt with viscosity higher than 501 poise enters fiber formation zone where fibers are stretched with velocity exceeding 4505 m/min. EFFECT: improved procedure.
Authors
Dates
1997-03-10—Published
1994-10-17—Filed