| 摘要 |
A process is provided for the production of man-made vitreous (MMV) fibres comprising forming a mineral melt (1) in a furnace from mineral materials, removing melt from the furnace and causing it to flow along a melt conduit, to an outlet, and from there to an application point at which it is applied to a rotor and formed into fibres, and in the process at least part of the melt conduit is an enclosed conduit (1) which rotates about an axis of rotation (2) which is parallel to its longitudinal axis as the melt is flowing along the conduit. Apparatus is also described which is suitable for carrying out such a process. This comprises a furnace, at least one rotatable rotor, an outlet and an application point and a melt conduit leading from the exit of the furnace to the outlet and in the apparatus at least part of the melt conduit is an enclosed conduit (1) which is rotatable about an axis (2) parallel to its longitudinal axis.
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