REACTION PREVENTING UNDERLAY, PRODUCTION THEREOF AND METAL MELTING AND EVAPORATING DEVICE

PROBLEM TO BE SOLVED: To reduce the reaction between molten metal and a ceramic vessel and to prolong the service life of the ceramic vessel. SOLUTION: This metal melting and evaporating device 20 is mounted with underlays US6 and US7 in an alumina vessel 21 to melt metal directly or indirectly (in...

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Bibliographische Detailangaben
Hauptverfasser:	ITO MASAYUKI, ISHIKAWA MASAYUKI, NAKABASHI MASAKO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To reduce the reaction between molten metal and a ceramic vessel and to prolong the service life of the ceramic vessel. SOLUTION: This metal melting and evaporating device 20 is mounted with underlays US6 and US7 in an alumina vessel 21 to melt metal directly or indirectly (in the case of using a crucible 22) on the underlays US6 and US7. These underlays US6 and US7 are provided with metallic members 30 and 40 enough in heat resistance and ceramic layers 31 and 41 covering the surfaces of the metallic members 30 and 40 and small in the reactivity with molten metal MT.