| 摘要 |
PROBLEM TO BE SOLVED: To provide powder suitable for continuously casting a Ni-based alloy having a low melting point, and further to provide a method for continuously casting a slab of a Ni-Cu-based alloy having no surface defect. SOLUTION: The powder for continuously casting the Ni-Cu-based alloy comprises 25 to 40 mass% of CaO, 25 to 40 mass% of SiO<SB>2</SB>, 10 to 20 mass% of Na<SB>2</SB>O, 1 to 10 mass% of Al<SB>2</SB>O<SB>3</SB>, (1.5 mass% or less of Li<SB>2</SB>O), 3 to 10 mass% of F, and 0.3 to less than 4 mass% of aggregate C, and has a basicity of 0.8 to 1.5, a viscosity of 0.5 to 3 poise at 1,300°C, and a solidifying temperature of 900 to 1,200°C. The method for continuously casting the Ni-Cu-based alloy uses this powder. COPYRIGHT: (C)2008,JPO&INPIT
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