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A platform for research: civil engineering, architecture and urbanism
INERT GAS SUBSTITUTING METHOD AND CERAMIC STRUCTURE MANUFACTURING METHOD USING INERT GAS SUBSTITUTING METHOD
An inert gas substituting method includes: a closing step of accommodating a honeycomb formed body in an indoor space of a gas substituting chamber and closing the same with airtightness from the outside being maintained; a pressure reducing step of reducing the pressure in the indoor space to a preset first vacuum pressure; a pressure increasing step of introducing argon gas into the pressure-reduced indoor space and increasing the pressure to a second vacuum pressure which is higher than the first vacuum pressure and lower than atmospheric pressure; a pressure re-reducing step of reducing the pressure to the first vacuum pressure again; and a pressure recovering step of repeating the pressure increasing step and the pressure re-reducing step at least twice, introducing argon gas into the indoor space in which the pressure has been reduced to the first vacuum pressure again, and recovering the pressure to atmospheric pressure.
INERT GAS SUBSTITUTING METHOD AND CERAMIC STRUCTURE MANUFACTURING METHOD USING INERT GAS SUBSTITUTING METHOD
An inert gas substituting method includes: a closing step of accommodating a honeycomb formed body in an indoor space of a gas substituting chamber and closing the same with airtightness from the outside being maintained; a pressure reducing step of reducing the pressure in the indoor space to a preset first vacuum pressure; a pressure increasing step of introducing argon gas into the pressure-reduced indoor space and increasing the pressure to a second vacuum pressure which is higher than the first vacuum pressure and lower than atmospheric pressure; a pressure re-reducing step of reducing the pressure to the first vacuum pressure again; and a pressure recovering step of repeating the pressure increasing step and the pressure re-reducing step at least twice, introducing argon gas into the indoor space in which the pressure has been reduced to the first vacuum pressure again, and recovering the pressure to atmospheric pressure.
INERT GAS SUBSTITUTING METHOD AND CERAMIC STRUCTURE MANUFACTURING METHOD USING INERT GAS SUBSTITUTING METHOD
IHARA CHIKASHI (author) / GOSHIMA TAKASHI (author) / KAMEI YOSHIYUKI (author)
2018-08-30
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
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