| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of oxides in the inner face side of a product, when centrifugally casting a cast iron tube. SOLUTION: When centrifugally casting a tubular body by feeding a molten metal 8 into the inner part of a rotary casting mold 1, a reducing agent is added to the surface of the molten metal 8 before the molten metal 8 cast is solidified. A reducer that contains a thermite agent and causes thermite reaction by the heat of the molten metal is preferable as the reducer 9. COPYRIGHT: (C)2004,JPO
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