| 摘要 |
PROBLEM TO BE SOLVED: To provide a foaming phenomenon depressor that can be simply produced by that a single refuse itself or the same added with a little constituent to appropriately adjust the property is molded.SOLUTION: A foaming phenomenon depressor is that a casting sand composition waste material for green sand mold is moisture controlled, then kneaded, pressure formed to be configured to a short columnar body 1a. The casting sand composition waste material for green sand mold is a waste of a casting sand composition for green sand mold, mainly includes silica sand for cast, and bentonite that is a caking additive, and includes slight moisture. Moisture control is performed to secure plasticity that is for that the casting sand composition waste material for green sand mold is formed to be the short columnar body 1a. Pressure formation is performed by using a mold. When the depressor is input in tapping slag or steel slag, the depressor breaks a film of a slag surface layer, rapidly precipitates to a boundary surface of slag and melting pig iron or the like, and can prevent a foaming phenomenon of the same speedily. |
