Abstract: An article for the conversion of glass, the article being made of an alloy that contains the following elements, the proportions being indicated as percentage by weight of the alloy (limit values included): Cr 20 to 35%, Fe 1 to 6%, W 3 to 8%, Nb 0.5 to 3%, Ti 0 to 1%, C 0.4 to 1%, Co 0 to 3%, Si 0.1 to 1.5%, Mn 0.1 to 1%, the remainder being nickel and unavoidable impurities.

Abstract: An alloy contains the following elements, the proportions being indicated as percentage by weight of the alloy (limit values included) Cr 20 to 35%, Fe 1 to 6%, W 3 to 8%, Nb 0.5 to 3%, Ti 0 to 1%, C 0.4 to 1%, Co 0 to 3%, Si 0.1 to 1.5%, Mn 0.1 to 1%, the remainder consisting of nickel and unavoidable impurities, wherein a (Nb+Ti)/C weight ratio is between 1 to 2.4.

Abstract: An alloy contains the following elements, the proportions being indicated as percentage by weight of the alloy (limit values included): Cr 20 to 35%, Fe 0 to 6%, W 3 to 8%, Nb 0.5 to 3%, Ti 0 to 1%, C 0.4 to 1%, Co 0 to 3%, Si 0.1 to 1.5%, Mn 0.1 to 1%, the remainder consisting of nickel and unavoidable impurities.

Abstract: A metal alloy is for use at very high temperature, in particular the metal alloy can be used in a process for the manufacture of mineral wool by fiberizing a molten mineral composition. The metal alloy contains the following elements, the proportions being shown as percentage by weight of the alloy: Cr 20 to 35% Fe 10 to 25% W 2 to 10% Nb 0.5 to 2.5% Ti 0 to 1% C 0.2 to 1.2% Co less than 5% Si less than 0.9% Mn less than 0.9% the remainder consisting of nickel and unavoidable impurities.

Abstract: A Ni—Cr—Fe-based casting alloy is provided for use in manufacturing a component for contacting molten glass, such as a centrifugal spinner for forming fibers of a molten glass by a rotary fiber forming process, for example. This Ni—Cr—Fe-based casting alloy is suitable for use in manufacturing a component for contacting molten glass, and contains, in terms of mass percent, 15-30% Cr, 15-30% Fe, 2.5-5.0% Co, 3.0-6.0% W, 0.0-2.0% Ti, 0.5-2.5% Nb, 0.5-2.0% Mo, and 0.5-1.2% C, the remainder including nickel and unavoidable impurities.

Abstract: A metal alloy is for use at very high temperature, in particular the metal alloy can be used in a process for the manufacture of mineral wool by fiberizing a molten mineral composition. The metal alloy contains the following elements, the proportions being shown as percentage by weight of the alloy: Cr 20 to 35% Fe 10 to 25% W 2 to 10% Nb 0.5 to 2.5% Ti 0 to 1% C 0.2 to 1.2% Co less than 5% Si less than 0.9% Mn less than 0.9% the remainder consisting of nickel and unavoidable impurities.

Abstract: The invention relates to an alloy having high temperature mechanical strength in an oxidizing medium and comprising a carbide-precipitation-strengthened matrix containing chromium. The invention is characterized in that the alloy comprises carbides of at least one metal (M) selected from among titanium, zirconium and hafnium, said carbides also optionally containing (M?) tantalum. The invention is suitable for articles that require high temperature mechanical strength, such as for hot glass processing or production.

Abstract: Cobalt based alloys exhibiting high-temperature mechanical strength in an oxidizing medium are provided. The alloys are free of W and Hf and include the following elements in percentage by weight of the alloy: 23 to 34% Cr; 6 to 12% Ni; 6.0 to 10% Ta; 0.3 to 1.2% C; less than 3% Fe; less than 1% Si; less than 0.5% Mn; less than 0.1% Zr; and a balance of cobalt and impurities. Ta/C molar ratios of the alloys are at least 0.3.

Abstract: An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): Cr: ?23 to 34% Ti: 0.2 to 5% Ta: 0.5 to 7% C: 0.2 to 1.2% Ni: less than 5% Fe: less than 3% Si: less than 1% Mn: less than 0.5%, the balance consisting of cobalt and inevitable impurities. An article for the manufacture of mineral wool, especially fiberizing spinner, made of such an alloy.

Abstract: An alloy, characterized in that it contains the following elements (the proportions being indicated in percentages by weight of the alloy): Cr: ?23 to 34% Ti: 0.2 to 5% Ta: 0.5 to 7% C: 0.2 to 1.2% Ni: less than 5% Fe: less than 3% Si: less than 1% Mn: less than 0.5%, the balance consisting of cobalt and inevitable impurities. An article for the manufacture of mineral wool, especially fiberizing spinner, made of such an alloy.

Abstract: The invention relates to a device for blowing a fluid onto at least one face of a thin element of the band type, comprising, within a containment (2) having a horizontal longitudinal axis (XX?) corresponding to the axis of travel of the band, at least one radial-flow fan (3) with a vertical axis (ZZ?), having at least one outlet connected to at least one pipe (51, 52) for feeding nozzles (43) directed towards the said face, characterized in that the nozzles (43) induce fluid jets in at least one plane perpendicular to the direction (XX?) of travel of the said band.

Abstract: The process for manufacturing mineral wool by internal centrifuging is characterized in that the temperature of the mineral material in the fiberizing spinner dish is at least 1150° C. and in that the fiberizing spinner dish is made of a cobalt-based alloy comprising the following elements (in percentages by weight of the alloy): Cr 23 ?to 34% Fe less than 3% Ni ??6 to 12% Si less than 1% Ta ??3 to 10% Mn less than 0.5% C 0.2 to 1.2% Zr less than 0.1% W ??0 to 8%, the balance consisting of cobalt and inevitable impurities and the tantalum-to carbon molar ration being at least 0.3. Alloys particularly suitable for this process satisfy the above formula and do not contain tungsten. The alloys according to the invention can be used for other purposes in an oxidizing atmosphere at a temperature of at least 1100° C.

Abstract: The invention relates to an alloy having high temperature mechanical strength in an oxidising medium and comprising a carbide-precipitation-strengthened matrix containing chromium. The invention is characterised in that the alloy comprises carbides of at least one metal (M) selected from among titanium, zirconium and hafnium, said carbides also optionally containing (M?) tantalum. The invention is suitable for articles that require high temperature mechanical strength, such as for hot glass processing or production.

Abstract: The invention relates to a device for blowing a fluid onto at least one face of a thin element of the band type, comprising, within a containment (2) having a horizontal longitudinal axis (XX?) corresponding to the axis of travel of the band, at least one radial-flow fan (3) with a vertical axis (ZZ?), having at least one outlet connected to at least one pipe (51, 52) for feeding nozzles (43) directed towards the said face, characterized in that the nozzles (43) induce fluid jets in at least one plane perpendicular to the direction (XX?) of travel of the said band.