| 摘要 |
PROBLEM TO BE SOLVED: To prevent generation of a pool to obtain a coating film with uniformity by removing a drip produced in carrying out the work for spraying a mold wash agent onto a chute/trough of centrifugal casting equipment. SOLUTION: A thick mold wash agent 12 is sprayed downward from the upper part of the chute 7, then a thin mold wash agent 10 is flowed on to the lower part of the chute 7 to apply blacking, thereby when the bank 14 due to the drip of the thick mold wash agent 12 previously sprayed exists, the thin mold wash agent flows away the pool 14. By this way, the coating film high in adhesion and provided with better uniformity can be remained.
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