A heat-insulating container made of steel of high heat insulating sheet and suitable for implementin

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PROBLEM TO BE SOLVED : To provide a heat insulating method for a steel plate container which can reduce secondary radiation heat transferred into the interior of the dry container, and in contrast can effectively restrain a temperature change inside and outside the container to prevent dew condensation inside the container generated due to a temperature decrease around the container, to provide a highly-functional heat insulating sheet suitable for the heat insulating method. SOLUTION : The highly-functional heat insulating sheet, wherein aluminum foil is laid on both sides of a plastic foam sheet which includes dispersed hollow ceramic microballoon particles, is laid and fixed over the whole surface of each inner wall of a rear surface, both side surfaces, a door part, and a ceiling in the dry container with at least four rare-earth magnets. The highly-functional heat insulating sheet has a structure including the followings : a core material made of a plastic foam sheet having a low thermal conductivity and containing dispersed hollow ceramic microballoon particles; aluminum alloy foils thermally deposited on both sides of the core material made of the foam sheet through aluminum deposition sheets; and further anticorrosion coating surfaces on the outside surfaces of the aluminum alloy foils. COPYRIGHT : (C)2010, JPO&INPIT