Title:
VACUUM INSULATION PANEL
Document Type and Number:
WIPO Patent Application WO/2018/043712
Kind Code:
A1
Abstract:
By suppressing thermal conductivity increase for a certain period of time immediately following the manufacture of this vacuum insulation panel, good heat insulation performance close to that exhibited immediately following manufacture is maintained for a long time. The present invention pertains to a method for manufacturing a vacuum insulation panel, wherein a core material (1) made of inorganic fibers is wrapped with an outer packaging material (2) made of a stainless steel plate, and the inner space (3) of the outer packaging material (2) wrapping the core material (1) is in a vacuum state. The water content of the core material (1) is 0.05 wt% or less, the surface roughness Ra of the inner space-side surface of the outer packaging material (2) is 0.2 μm or less, and the peripheral edge portion of the outer packaging material (2) is sealed by welding in a state in which the pressure of the inner space (3) of the outer packaging material (2) is 1 Pa or less.
Inventors:
AZUMA TSUTOMU (JP)
MISHIMA HIROHISA (JP)
NAKAKO TAKEFUMI (JP)
KUBONIWA SEIICHI (JP)
MISHIMA HIROHISA (JP)
NAKAKO TAKEFUMI (JP)
KUBONIWA SEIICHI (JP)
Application Number:
PCT/JP2017/031619
Publication Date:
March 08, 2018
Filing Date:
September 01, 2017
Export Citation:
Assignee:
NISSHIN STEEL CO LTD (JP)
MAG ISOVER K K (JP)
MAG ISOVER K K (JP)
International Classes:
F16L59/065
Domestic Patent References:
WO2016006186A1 | 2016-01-14 |
Foreign References:
JP2016517944A | 2016-06-20 | |||
JP2002363754A | 2002-12-18 | |||
JP2015158261A | 2015-09-03 | |||
JP2017053400A | 2017-03-16 |
Other References:
See also references of EP 3508771A4
Attorney, Agent or Firm:
HAYASHI Kazuyoshi et al. (JP)
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