MOLD FOR CONTINUOUS CASTING AND METHOD FOR MANUFACTURING AND REPAIRING THE SAME

• Main Author: KURISU YASUSHI
• Format: Patent
• Language: English
• Published: 04.11.2004
• Edition: 7
• 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; 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

PROBLEM TO BE SOLVED: To provide a mold for continuous casting which is excellent in electric conductivity and thermal conductivity as well as abrasion resistance, has high adhesion and has a long-lived fine coat on its surface; a method for manufacturing the mold for continuous casting efficiently and without any thermal effect on the base material; and a method for repairing the mold for continuous casting which enables the partial repair of a mold which has never been done and can, as a result, attain a reduction in the manufacturing cost of the mold and long life of the mold. SOLUTION: The coat formed on the surface of the mold for continuous casting is made of any one of Cr, Ni and Ni alloy, or a complex of Ni or Ni alloy of 10-90 mass% and the rest of high-hardness ceramics, and 0.01-2 vol.% oxide of Cr, Ni or Ni alloy, and has a porosity of 3% or less. A damaged part of the surface of the mold for continuous casting of which base material is high-strength Cu alloy like Cr-Zr-Cu or Cr-Zr-Al-Cu is repaired with cold spray. COPYRIGHT: (C)2005,JPO&NCIPI