A tooling for forming a sheet of glass includes a forming die made of electrically conductive material and a heating unit, distant from the forming die. The forming die includes a molding surface, a support to hold a sheet of glass away from and opposite the molding surface, and an induction circuit having an inductor extending in a cavity in the forming die. The heating unit includes a surface configured to produce thermal radiation opposite the molding surface, and an induction circuit having an inductor extending in a cavity of the heating unit. A connector connects the induction circuits to a high-frequency current generator.

The present invention generally relates to a process for fabricating Chloro Alkali Phosphate Doped/Codoped by rare earth ions for optical laser amplifiers. The process includes mixing 38-42 wt. % of Phosphorus pentoxide (P.sub.2O.sub.5), 28-32 wt. % of Zinc oxide (ZnO), 9-11 wt. % of Barium fluoride (BaF.sub.2), 17-19 wt. % of Lithium chloride (LiCl), and 1-3 wt. % of Lead(II) fluoride (PbF.sub.2); filling a silica, platinum, and alumina crucible to the mixture; heating the mixture upon increasing a furnace temperature to 1000-1050 C. at a rate of 10 C. per minute and maintaining it for two hours to melt the glass; and pouring the glass melt into a preheated stainless steel mold at 350 C. and transferring the mold to a holding furnace heated to 350-370 C. and annealing for two hours thereby cooling to room temperature to obtain Chloro Alkali Phosphate matrix glass that is undoped, doped, or codoped with high thermal stability.

The present invention generally relates to a process for fabricating Chloro Alkali Phosphate Doped/Codoped by rare earth ions for optical laser amplifiers. The process includes mixing 38-42 wt. % of Phosphorus pentoxide (P.sub.2O.sub.5), 28-32 wt. % of Zinc oxide (ZnO), 9-11 wt. % of Barium fluoride (BaF.sub.2), 17-19 wt. % of Lithium chloride (LiCl), and 1-3 wt. % of Lead(II) fluoride (PbF.sub.2); filling a silica, platinum, and alumina crucible to the mixture; heating the mixture upon increasing a furnace temperature to 1000-1050 C. at a rate of 10 C. per minute and maintaining it for two hours to melt the glass; and pouring the glass melt into a preheated stainless steel mold at 350 C. and transferring the mold to a holding furnace heated to 350-370 C. and annealing for two hours thereby cooling to room temperature to obtain Chloro Alkali Phosphate matrix glass that is undoped, doped, or codoped with high thermal stability.

In one aspect, a pressing unit is provided, comprising: a mold and a plunger, and a coating configured on at least one of: the surface of the mold and/or the surface of the plunger, where the coating is configured adjacent to the areas where molten or hot glass or glass ceramic touches; wherein the coating comprises: a mold release coating, configured as the gob-contacting surface, wherein the mold release coating comprises: at least two solid lubricants selected from tungsten disulfide, boron nitride, glassy carbon and graphite; and a thermal barrier coating comprising barrier material components and an organo-silica binder.

In one aspect, a pressing unit is provided, comprising: a mold and a plunger, and a coating configured on at least one of: the surface of the mold and/or the surface of the plunger, where the coating is configured adjacent to the areas where molten or hot glass or glass ceramic touches; wherein the coating comprises: a mold release coating, configured as the gob-contacting surface, wherein the mold release coating comprises: at least two solid lubricants selected from tungsten disulfide, boron nitride, glassy carbon and graphite; and a thermal barrier coating comprising barrier material components and an organo-silica binder.

A device for bending sheets of glass running between a bed of upper rolls and a bed of lower rolls forming a shaping bed that pinches the sheets as they run, the shaping bed being disposed in a path having a curved profile in the running direction of the sheets of glass, the shaping bed including at least one roll of what is known as the rod/sheath type including a fixed metal rod preformed in a curved profile lengthwise and a flexible sheath that is able to rotate about the rod, the sheath being rotated about the rod. The roll of the rod/sheath type may include a metal rod preformed in a curved profile lengthwise and a flexible sheath that is able to rotate about the rod, the sheath including a first envelope made of a polymer material and a second envelope made of a flexible metal material disposed around the first envelope, the first and the second envelope rotating together as one.

A device for bending sheets of glass running between a bed of upper rolls and a bed of lower rolls forming a shaping bed that pinches the sheets as they run, the shaping bed being disposed in a path having a curved profile in the running direction of the sheets of glass, the shaping bed including at least one roll of what is known as the rod/sheath type including a fixed metal rod preformed in a curved profile lengthwise and a flexible sheath that is able to rotate about the rod, the sheath being rotated about the rod. The roll of the rod/sheath type may include a metal rod preformed in a curved profile lengthwise and a flexible sheath that is able to rotate about the rod, the sheath including a first envelope made of a polymer material and a second envelope made of a flexible metal material disposed around the first envelope, the first and the second envelope rotating together as one.

A process for manufacturing a hollow glass product using an I.S. machine and a robot that can move alongside blank molds of the I.S. machine, wherein the robot is capable of replacing one or more blank molds, section after section. The I.S. machine for manufacturing hollow glass products includes a robot that can move alongside the blank molds, and the robot is capable of carrying plural tools having different functions, simultaneously and/or alternately, chosen from an electromagnet, and/or a spray tube for greasing by spraying, and/or an optical pyrometer, an infrared or equivalent viewing port, and/or a rotary abrasive tool, and/or a camera or equivalent.

A glass or glass-ceramic sheet includes peaks and valleys, where a cross-sectional profile in one direction along the sheet contains a first plurality of peaks, and a cross-sectional profile along the sheet in a perpendicular direction to that direction contains a second plurality of peaks. The first plurality is different from the second plurality of peaks.

A glass or glass-ceramic sheet includes peaks and valleys, where a cross-sectional profile in one direction along the sheet contains a first plurality of peaks, and a cross-sectional profile along the sheet in a perpendicular direction to that direction contains a second plurality of peaks. The first plurality is different from the second plurality of peaks.