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Sand for precision casting and preparation method thereof
The invention relates to the technical field of precision casting, in particular to sand for precision casting and a preparation method thereof. The sand for precision casting is prepared from the following components in parts by mass: 50 to 55 parts of bauxite, 20 to 32 parts of mullite, 10 to 15 parts of clay, 1 to 3 parts of brown aluminum oxide and 0.5 to 10 parts of a composite additive. The sand for precision casting, which is obtained by coordinating and matching the raw material components, has the characteristics of good collapsibility, high refractoriness (1900-2100 DEG C), good sphericity, low impurity content, low cost and stable quality index.
本发明涉及精密铸造技术领域，具体而言，涉及一种精密铸造用砂及其制备方法。本发明的精密铸造用砂，由包括以下质量份数的组分制备得到：铝矾土50份～55份、莫来石20份～32份、粘土10份～15份、棕刚玉1～3份和复合添加剂0.5份～10份。本发明通过各原料组分的协调配合得到的精密铸造用砂，具有溃散性好，耐火度高(1900℃～2100℃)，球形度好，杂质含量低，成本低，质量指标稳定的特点。
Sand for precision casting and preparation method thereof
The invention relates to the technical field of precision casting, in particular to sand for precision casting and a preparation method thereof. The sand for precision casting is prepared from the following components in parts by mass: 50 to 55 parts of bauxite, 20 to 32 parts of mullite, 10 to 15 parts of clay, 1 to 3 parts of brown aluminum oxide and 0.5 to 10 parts of a composite additive. The sand for precision casting, which is obtained by coordinating and matching the raw material components, has the characteristics of good collapsibility, high refractoriness (1900-2100 DEG C), good sphericity, low impurity content, low cost and stable quality index.
本发明涉及精密铸造技术领域，具体而言，涉及一种精密铸造用砂及其制备方法。本发明的精密铸造用砂，由包括以下质量份数的组分制备得到：铝矾土50份～55份、莫来石20份～32份、粘土10份～15份、棕刚玉1～3份和复合添加剂0.5份～10份。本发明通过各原料组分的协调配合得到的精密铸造用砂，具有溃散性好，耐火度高(1900℃～2100℃)，球形度好，杂质含量低，成本低，质量指标稳定的特点。
Sand for precision casting and preparation method thereof
一种精密铸造用砂及其制备方法
WANG JINGSHUO (author)
2021-12-17
Patent
Electronic Resource
Chinese
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