PILING OF OXIDE POWDER BY VAPOR-PHASE AXIAL DEPOSITION

• Main Authors: SENDA KAZUNORI, KIKUCHI TAKEYUKI, OGURA KUNIO, KAMIYA TAMOTSU, FURUI YASUROU, YOSHIDA KAZUAKI
• Format: Patent
• Language: English
• Published: 12.12.1983
• Subjects: CHEMISTRY; GLASS; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; METALLURGY; MINERAL OR SLAG WOOL; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

PURPOSE:To prevent insufficiently reacted oxide powder from attaching to a powder layer for core and a powder layer for clad, by setting a sealing means at the boundary between a spray zone for a device to prepare powder for core and a spray zone for a device to prepare powder foc clad. CONSTITUTION:The reaction container 1 is divided into the reaction chamber 2 having the device 4 to prepare powder for core and the reaction chamber 3 having the device 5 to prepare powder for clad by the sealing means 12 consisting of the partitioning plates 13 and 14 with the through holes 17 and 18. The powder piling device 8 set in the container 1 is rotated on the shaft line, moved in the shaft direction, simultaneously a sealing gas is sent from the feed system 16 to the sealing chamber 15 divided by the partitioning plates 13 and 14, and leaked through the through holes 17 and 18 into the reaction chambers 2 and 3. Glass-based oxide powder is sprayed from the device 4 to the piling face of the piling device 8, so that the bar powder layer 19 for core is formed, and glass- based oxide powder from the device 6 is sprayed to it to form the powder layer 20 for clad.