CASTING METHOD AND MOLD COATING MATERIAL USED THEREIN

摘要

PURPOSE:To suppress effectively carburization and sulfurization by allowing oxides consisting of iron oxide and manganese oxide to exist in a casting mold. CONSTITUTION:The oxides consisting of the iron oxide and manganese oxide are allowed to exist in the casting mold in the stage of using the org. self-curable furan resin mold obtd. by using an org. binder of an acid curing type consisting of a furan resin and a sulfonic acid curing catalyst in executing casting. The carburization and sulfurization occuring in the carburizing material such as carbon and sulfurizing material such as sulfur generated in the stage of pouring a molten metal into the furan resin mold are thus suppressed and prevented.