METHOD OF MANUFACTURING HEAT EXCHANGER COMPOSED OF MAGNETIC REFRIGERATING MATERIAL, AND HEAT EXCHANGER

PROBLEM TO BE SOLVED: To provide a method of manufacturing a heat exchanger composed of a magnetic refrigerating material capable of suppressing degradation of performance by suppressing deposition of α-Fe, and the heat exchanger composed of the magnetic refrigerating material.SOLUTION: A thin band...

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Bibliographische Detailangaben
Hauptverfasser:	KITO YASUO, FUJINAKA TOMONORI
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS BLASTING CASTING CASTING OF METALS CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES CHEMISTRY COMBINED HEATING AND REFRIGERATION SYSTEMS FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS HEAT PUMP SYSTEMS HEATING LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS MANUFACTURE OR STORAGE OF ICE MECHANICAL ENGINEERING METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS PERFORMING OPERATIONS POWDER METALLURGY REFRIGERATION MACHINES, PLANTS OR SYSTEMS REFRIGERATION OR COOLING TRANSPORTING TREATMENT OF ALLOYS OR NON-FERROUS METALS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of manufacturing a heat exchanger composed of a magnetic refrigerating material capable of suppressing degradation of performance by suppressing deposition of α-Fe, and the heat exchanger composed of the magnetic refrigerating material.SOLUTION: A thin band body 13 is manufactured by a melt quenching method by using a power material 11. Then the thin band body 13 is heated in a heating chamber 21 filled with an inert gas. Four sheets of the thin band bodies 13 having undergone heat treatment, are stacked to prepare a plate-shaped stacked body 31. A material piece 33 as a plate-shaped member provided with a groove of 0.1 mm depth extending in the depth direction on its main face, is formed by cutting, grinding and polishing the stacked body 31. The material piece 33 is charged into a heat treatment furnace 35 to be heated, so that a material piece 41 is prepared by making the material piece 33 absorb hydrogen, and the material pieces 41 are stacked to manufacture a heat exchanger 43 in which the groove part is applied as a micro-channel.