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发明名称
一种铸造用石墨砂
摘要
本发明涉及一种石墨砂,其特征在于各组分重量含量为65%-85%无定形石墨砂;15%-25%氧化镁砂;10%-15%膨润土。上述无定形石墨砂,氧化镁砂以及膨润土的粒度,以居于85目到120目为宜。它可以由此一粒度范围内的一种,亦可以数种粒度所构成。但任何情况下,都应对筛下物的含量比对筛上物的含量作更严格的限定,细于85目的无定形石墨砂,氧化镁砂以及膨润土不宜作为铸造用砂来使用。
申请公布号
CN103769529A
申请公布日期
2014.05.07
申请号
CN201210417596.6
申请日期
2012.10.18
申请人
赵建
发明人
赵建
分类号
B22C1/00(2006.01)I
主分类号
B22C1/00(2006.01)I
代理机构
代理人
主权项
一种石墨砂,包括无定形石墨,其特征在于各组分重量含量为65%‑85%无定形石墨砂;15%‑25%氧化镁砂;10%‑15%膨润土。
地址
266612 山东省莱西市武备镇新华街48号
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