INORGANIC COATED SAND
To provide inorganic coated sand that can suppress a deformation of a casting mold that is caused during casting.SOLUTION: In a method for suppressing a deformation of a casting mold during casting, an inorganic caking agent layer contains one or more kinds selected from zinc oxides and magnesium ox...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide inorganic coated sand that can suppress a deformation of a casting mold that is caused during casting.SOLUTION: In a method for suppressing a deformation of a casting mold during casting, an inorganic caking agent layer contains one or more kinds selected from zinc oxides and magnesium oxides and total contents of the zinc oxides and the magnesium oxides are set to be 6 mass parts or more and 70 mass parts or less with respect to 100 mass parts of the inorganic caking agent, in a casting mold prepared using an inorganic coated sand having a fire-resistant aggregate and the inorganic caking agent layer formed on a surface of the fire-resistant aggregate.SELECTED DRAWING: None
【課題】鋳造時に起こる鋳型の変形を抑制する無機コーテッドサンドを提供する。【解決手段】耐火性骨材と耐火性骨材の表面に形成された無機粘結剤層とを有する無機コーテッドサンドを用いて作製された鋳型において、無機粘結剤層が酸化亜鉛及び酸化マグネシウムから選ばれる１種以上を含有し、酸化亜鉛及び酸化マグネシウムの合計含有量を無機粘結剤１００質量部に対して６質量部以上７０質量部以下とすることにより、鋳造時に鋳型の変形を抑制する方法。【選択図】なし |
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