Title:
WEATHERING TEST DEVICE AND MANUFACTURING METHOD OF DECORATIVE SHEET
Document Type and Number:
Japanese Patent JP2023117419
Kind Code:
A
Abstract:
To provide a pressure device capable of discharging water in a container body while suppressing a pressure change in the container body when discharging the water in the container body in the pressurization.SOLUTION: A pressure device 2 includes a gas introduction pipe 13 for introducing gas into a pressurized container 11, a pressure regulator 16 for regulating air pressure in the pressurized container 11, a water spray pipe 17 for spraying water to a specimen S in the pressurized container 11, a drain tank 20a provided to a drain pipe 19 for discharging water in the pressurized container 11, an inflow valve 20b provided between the pressurized container 11 and the drain tank 20a, and a discharge valve 20c for discharging the water in the drain tank 20a. The pressure device suppresses pressure fluctuation in the pressurized container 11 when discharging the water in the pressurized container 11, by moving the water in the pressurized container 11 to the drain tank 20a, with the discharge valve 20c closed and the inflow valve 20b opened, and then, discharging the water in the drain tank 20a, with the inflow valve 20b closed and the discharge valve 20c opened.SELECTED DRAWING: Figure 1
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Inventors:
MIYAMOTO SHINICHI
TOCHIGI HANAE
KASHIWAME MEGUMI
TOCHIGI HANAE
KASHIWAME MEGUMI
Application Number:
JP2023098426A
Publication Date:
August 23, 2023
Filing Date:
June 15, 2023
Export Citation:
Assignee:
TOPPAN PRINTING CO LTD
International Classes:
G01N17/00
Attorney, Agent or Firm:
Hajime Hirose
Toru Miyasaka
Toru Miyasaka