Abstract: A substrate carry-out device carries out an exposed substrate mounted on a substrate stage from a substrate holder by moving the substrate in one axis direction (X-axis direction) parallel to a horizontal plane in a state where the substrate is mounted on a substrate tray housed in the substrate holder. Meanwhile, a substrate carry-in device makes an unexposed substrate to be carried into the substrate stage wait at a substrate exchange position in a state where the unexposed substrate is mounted on another substrate tray, and after the exposed substrate is carried out from the substrate stage, lowers the another substrate tray, thereby mounting the unexposed substrate onto the substrate holder.

Abstract: A glass panel assembly sealing method and sealing process furnace used therewith wherein coordinated control of temperature and pressure enables the removal of impure gas and the like from the glass panel assembly and reduces the amount of residual impure gas and the like remaining in the glass panel assembly after the sealing process is complete. A seal frit is applied between two mutually overlaid glass substrates comprising a glass panel assembly. The internal temperature of the glass panel assembly is raised, through a forcefully circulated environment, to a preliminary temperature T1 which is near the initial melting temperature of the seal frit. The pressure (P1) of the internal environment is then reduced while the preliminary temperature is maintained. The temperature is then increased from the preliminary temperature up to the sealing temperature T2 by the forcefully circulated environment, after which the glass panel assembly is cooled by the forceful circulated environment.

Abstract: To provide a glass panel assembly sealing method and sealing process furnace used therewith wherein coordinated control of temperature and pressure enables the removal of impure gas and the like from the glass panel assembly and reduces the amount of residual impure gas and the liked remaining in the glass panel assembly after the sealing process is complete. Means A seal frit is applied between two mutually overlaid glass substrates comprising a glass panel assembly. The internal temperature of the glass panel assembly is raised, through a forcefully circulated environment, to a preliminary temperature T1 which is near the initial melting temperature of the seal frit. The pressure (P1) of the internal environment is then reduced while the preliminary temperature is maintained. The temperature is then increased from the preliminary temperature up to the sealing temperature T2 by the forcefully circulated environment, after which the glass panel assembly is cooled by the forceful circulated environment.

Abstract: A method and apparatus for fabricating a plasma display panel with increased efficiency and productivity is provided. A glass panel assembly P1 constructed from two glass plates W1, W2, which are joined together by a jig 10 with a sealant S applied along a periphery of one or the other of the opposing surfaces of the two glass plates W1, W2, is supported on an evacuating cart 20 in such a manner as to be positioned inside a furnace 1. The exhaust pipe Pa provided in any one of the glass plates W1, W2 is connected switchably between an evacuating system 25 and a discharge gas supply system 26. After evacuating the interior of the glass panel P2, a discharge gas is filled into the glass panel P2 and finally the exhaust pipe Pa is sealed and cut.

Abstract: A press-cushion sheet having an enhanced durability in practical use comprises a three- to six-ply woven fabric composed of heat resistant fiber spun warp and weft yarns with a cotton count of 2 to 10 and having warp and weft densities of 80-170 yarns/2.54 cm and 50-160 yarns/2.54 cm respectively, the individual warp yarns in the fabric are bent in the form of waves and have a bending coefficient (BC) of from 1 to 30 determined in accordance with the equation (I): ##EQU1## wherein d represents a thickness of the fabric and n represents the wave number of the warp yarns bent in the form of waves, per 10 cm of the fabric, and optionally, a heat-resistance resin impregnated in the fabric.

Abstract: A flame resistant staple fiber blend, useful for flame-resistant clothing, comprising 80 to 97 weight parts of m-aramide polymer staple fibers (A) with a small thermal shrinkage stress of 130 mg/d or less at 350.degree. C., 3 to 20 weight parts of p-aramide copolymer staple fibers (B) with a higher flame resistance than that of the m-aramide fiber (A), and optionally, 240 weight parts or less of non-fusible staple fibers (C) with a lower thermal shrinkage stress than that of the staple fiber (A).

Abstract: An aluminum oxynitride refractory of a sufficiently high nitrogen content is produced efficiently and inexpensively by a method which comprises mixing alumina of Bayer Process with aluminum dross and electrically fusing the resultant mixture in an electric furnace.

Abstract: The disclosure relates to a vacuum sintering furnace having a lubricant eliminating section, sintering section and cooling section which are aligned in series and connected by connecting hood means to each other so that a workpiece may be directly transferred to the following section without exposure of the workpiece to outside air. The connecting hood means comprises doors for selectively opening and closing the boundaries between the neighboring sections. Furthermore, the lubricant eliminating section is provided with a lubricant trapping device mounted on an exhaust line connecting a furnace body and a vacuum pump to each other, thereby the stable operation of the vacuum pump is ensured.