Also called mold sand. Sand used to make casting molds. Natural or artificial silica sand and river sand that contains almost no clay, and mountain sand that contains a certain amount of clay are used. It must be highly breathable to allow gas to escape, and must have high fire resistance, moderate moldability, and pressure resistance. → Related topics Casting industry Source : Heibonsha Encyclopedia About MyPedia Information |
型砂とも。鋳型を作る砂。粘土分をほとんど含まない天然または人工のケイ砂および川砂,ある程度粘土を含む山砂などを使用。ガス放散のため通気性が大で,高い耐火性と適度な成形性,耐圧性が必要。 →関連項目鋳物工業 出典 株式会社平凡社百科事典マイペディアについて 情報 |
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