凍結鑄型について

概要

論文の詳細を見る
Green sand molds are frozen in winter at cold districts. When molten pig iron is poured in such frozen molds, metal is boiled or swelled out. Some experiments were carried out to clarify these phenomena and obtained the following results. 1. Some moisture in the green sand mold moves to the cold side during freezing. 2. Permeability-moisture curves of green sand and frozen sand cross at about 4-7% of moisture and the maximum permeability of frozen sand is much lower than that of green sand. 3. When the frostlike adhered to the mold surface, boiling is occured on the pouring.
Japan Foundry Engineering Societyの論文