Isover Saint-gobain

Guy Tuffal

Yves Audren

Daniel Guyot

The present invention relates to a device for the internal centrifugation of fine mineral fibres, a method for forming fine mineral fibres, and paper containing fine mineral fibres.

Device and method for the centrifuging of mineral fibers

Strips of mineral fibers are brought into a space defined by three members operated by a movement which drives the coiling of the strip. The third of these members, the compressor roller, is operated at a rotational speed which is a function of a predetermined program while introducing as parameters the length of the strip which has already been coiled and the speed of the feeding conveyor of the strip. The rolls obtained are cylindrical and there are no overcompressed zones.

Compression coiling machine

In the packaging of products such as rolls of mineral wool felts, a series of members entrain the felt into a space in which the rolling-up takes place. At least one of these members is mobile in relation to the others in order to alter the size of the space in which the rolling-up takes place as the roll of felt increases in size. This movable member is a roller whose surface contracting the felt is covered with an inorganic coating resistant to abrasion and adapted to have a rough finish.

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Orange, France

Guy Tuffal