Isover Saint-Gobain

Daniel Sainte-Foi

Alain Debouzie

Jean A Battigelli

Hans Furtak

Guy Berthier

Jean-Yves Aube

Yannick Blandin

Alain Giboult

Method for the production of mineral wool

A method for the formation of mineral fibers in which the material to be fibered is poured in the molten state onto the peripheral surface of the first of a series of centrifuging wheels rotating at high speed in order to be fibered there by centrifugal force. The fibers formed by the various centrifuging wheels are entrained in streams of gas emitted in the immediate vicinity of the said wheels in a direction essentially parallel with the axes of rotation of the wheels. At least one of these streams of gas is emitted at a temperature of between 250.degree. and 900.degree. C. and preferably between 300.degree. and 600.degree. C., and even more preferably around 500.degree. C.

Method of forming mineral fibers

The invention relates to the production of mineral fibers from a material melted in a cupola. To regularize the supply of material to the fiber-forming apparatus, the material emanating from the cupola and conveyed to the apparatus passes through a reserve.

Supply of fiber material in fiber producing techniques

The invention relates to a process and apparatus for the manufacture of fibers from attenuable materials, such as glass making materials, by centrifugation. In a process in which the attenuable material is directed onto the peripheral surface of a centrifugation wheel which is enveloped by a gas current produced by a blowing crown, the invention comprises the projecting onto the fibers of a liquid composition from a centrifugation element, the projection being carried out close to the wheel in the form of drops which penetrate and are atomized by the gas current. The apparatus of the invention includes a projection element rotating with the centrifugation wheel for centrifugal delivery of the drops of liquid composition. The invention provides a very uniform treatment of the fibers, particularly by means of liquid binder compositions.

Process and apparatus for forming mineral fibers

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Clermont, France

Daniel Sainte-Foi