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1. (WO2018180702) METHOD FOR PRODUCING SPRAY-GRANULATED EXOTHERMIC MOLD POWDER

Pub. No.:    WO/2018/180702    International Application No.:    PCT/JP2018/010797
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Tue Mar 20 00:59:59 CET 2018
IPC: B22D 11/108
Applicants: SHINAGAWA REFRACTORIES CO., LTD.
品川リフラクトリーズ株式会社
Inventors: NAKATANI, Erika
中谷 枝里香
IWAMOTO, Yukimasa
岩本 行正
Title: METHOD FOR PRODUCING SPRAY-GRANULATED EXOTHERMIC MOLD POWDER
Abstract:
A method for producing a spray-granulated exothermic mold powder, the method including a step for spray drying a starting material blend and a water-based slurry containing a metallic silicon powder and/or a silicon alloy powder to bring about granulation into granule form. The method for producing a spray-granulated exothermic mold powder according to the present invention is characterized in that the pH of the water-based slurry is adjusted to less than or equal to 13.