PROCESS OF MANUFACTURE OF VACUUM HEAT INSULATION MATERIAL AND REFRIGERATOR USING THIS VACUUM HEAT INSULATION MATERIAL

• Main Authors: TAKAHASHI ATSUMI, KUBOTA TAKESHI, MISEKI TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 16.05.2016
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; JOINTS OR FITTINGS FOR PIPES; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; REFRIGERATION OR COOLING; REFRIGERATORS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a process of manufacture of vacuum heat insulation material preventing inorganic fiber constituting core material of the vacuum heat insulation material from changing into powder form and at the same time having a high shape maintenance function for keeping heated and compressed shape and provide a refrigerator using this vacuum heat insulation material.SOLUTION: This invention relates to material that is manufactured by applying thermal press against aggregate of inorganic fiber with its diameter being 3 to 10 μm for 30 to 60 minutes while keeping a temperature of 350°C to 500°C to have a shape maintenance function. In accordance with this invention, it is possible to prevent inorganic fiber from changing into powder by applying thermal press against aggregate of inorganic fiber with its diameter being 3 to 10 μm for 30 to 60 minutes while keeping a temperature of 350°C to 500°C and further to improve shape maintenance function for keeping the compressed state.SELECTED DRAWING: Figure 4 【課題】真空断熱材の芯材を構成する無機繊維が粉状になるのを抑制すると共に、加熱、圧縮した形状を維持する形状維持機能が高い真空断熱材の製造方法及びこの真空断熱材を使用した冷蔵庫を提供することにある。【解決手段】繊維径が３〜１０μｍの無機繊維の集合体を３５０℃〜５００℃の温度に維持しながら３０分〜６０分に亘り熱プレスして形状維持機能を付与したものである。これによれば、無機繊維の集合体を３５０℃〜５００℃の温度に維持しながら３０分〜６０分に亘り熱プレスすることによって、無機繊維が粉状になるのを抑制することができ、しかも圧縮した状態を維持する形状維持機能を高めることができるものである。【選択図】図４