DIE PARTS FOR CASTING

• Main Authors: YASUDA TSUJIHIKO, KAIDA KENJI, NISHIHARA YOSHIO, MASUDA RYUICHI, HANNOU AKIYOSHI, HAYASHI YOSHIRO, SENDA HITOSHI, EKINO YOSHIO
• Format: Patent
• Language: English
• Published: 09.08.1994
• Edition: 5
• Subjects: CASTING; CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES; 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; FOUNDRY MOULDING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

PURPOSE:To improve impact resistance and durability to molten metal by laminating a metal thermal spraying coating layer and ceramic thermal spraying coating layer on the surface of a die part body on the side in contact with the molten metal, successively from the surface. CONSTITUTION:The metal thermal spraying coating layer 91 of Mo, etc., improves the adhesion between the ceramic thermal spraying coating layer 92 of Al, etc., and the surface of the die part body 90. The metal thermal spraying< coating layer 91 lessens the deterioration and erosion liable to arise on the die part body 90 at the time of casting of Al or its alloy, etc., when the die part body 90 is made of metal such as SKD steel, etc. The layer improves the impact resistance of the die part body 90 when the die part body 90 is made of ceramics such as alumina. Further, the ceramic thermal spraying layer 92 improves the durability of the die parts to the melt of the aluminum or its alloy when the layer is disposed on the extreme surface layer of the die parts.