COMPOSITE THERMAL SPRAY MATERIAL, PRODUCTION METHOD THEREOF, AND ELECTRODE USING THE SAME

• Main Authors: HIRAMATSU SHINICHI, SHIMODA KENJI
• Format: Patent
• Language: English; Japanese
• Published: 12.05.2023
• Subjects: CASTING; 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; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; METALLURGY; PERFORMING OPERATIONS; POWDER METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; WORKING METALLIC POWDER

To provide a composite thermal spray material capable of suppressing oxidation during thermal spraying.SOLUTION: A composite thermal spray material 1 is granulated by using a metal particle 2 with an oxide film 3 whose surface is oxidation-treated, and an oxide mineral 4. The metal particle 2 is Ni-Cr alloy, and the oxide mineral 4 is bentonite. The metal particle with an oxide film whose surface is oxidation-treated by being heated at 600°C-800°C for 1-3 hours, is formed, and the composite thermal spray material 1 is granulated by using the metal particle with the oxide film, and the oxide mineral.SELECTED DRAWING: Figure 2 【課題】溶射時の酸化を抑制することが可能な複合溶射材料を提供する。【解決手段】実施形態に係る複合溶射材料１は、表面が酸化処理された酸化膜３付の金属粒子２と、酸化物鉱物４とを用いて造粒される。金属粒子２は、Ｎｉ－Ｃｒ合金であり、酸化物鉱物４は、ベントナイトである。６００℃～８００℃で１～３時間加熱して、その表面が酸化処理された酸化膜付金属粒子が形成され、酸化膜付き金属粒子と酸化物鉱物とを用いて複合溶射材料が造粒される。【選択図】図２