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    • 1. 发明公开
    • METHOD FOR MANUFACTURING VACUUM HEAT INSULATOR AND VACUUM HEAT INSULATOR
    • 制造真空绝热器和真空绝热器的方法
    • EP3181980A1
    • 2017-06-21
    • EP16002614.2
    • 2016-12-08
    • ASAHI GLASS COMPANY, LIMITED
    • Shinohara, NobuhiroHayashi, TomoharuHamada, Yuya
    • F16L59/065
    • There are provided a method for easily and economically manufacturing a vacuum heat insulator in which the decrease in degree of vacuum is suppressed in a long-term use, and a vacuum heat insulator in which the decrease in degree of vacuum is suppressed in a long-term use. A method for manufacturing a vacuum heat insulator, including the steps of: 1) housing the core member (4) in an envelope (3) having an unwelded part; 2), after 1), welding the heat-weld layers (1) of the envelope under reduced pressure while leaving an unwelded part of a predetermined width from an outer edge of the envelope (3) housing the core member (4); 3) cleaning the surfaces of the unwelded part left outside the welded part (X1, X2); and 4I) forming a protective welded (Y) part by heat-welding the cleaned surfaces.
    • 本发明提供一种容易且经济地制造长期使用时抑制了真空度的降低的真空绝热体的方法以及在长期使用中抑制真空度降低的真空绝热体的方法, 长期使用。 一种制造真空绝热体的方法,包括以下步骤:1)将芯部件(4)容纳在具有未焊接部分的封套(3)中; 2)之后,在1)之后,在减压下焊接封壳的热熔层(1),同时从容纳芯部件(4)的封套(3)的外边缘留下预定宽度的未焊接部分; 3)清理留在焊接部分外部的未焊接部分(X1,X2)的表面; 和4I)通过热焊接清洁过的表面而形成保护性焊接(Y)部分。