由美国金属铸造产品集团公司生产的Cast-Rite牌炭粒砂是一种新型的人造铸造用砂,这种人造炭粒砂由坚硬的圆炭粒组成,它将碳固有的热稳定性与常用石英砂的流动性和多用性集于一身。Cast-Rite牌炭粒砂是铸造灰铁、球铁、可锻铸铁、铜、铝及其它有色金属用的最佳造型材料。该砂热膨胀系数极低,而抗金属 Cast-Rite carbon sand, produced by the American Metal Casting Products Group, is a new type of artificial foundry sand consisting of hard, round carbon grains that combines the inherent thermal stability of carbon with the commonly used Quartz sand mobility and versatility set in one. Cast-Rite carbon sand is the best molding material for gray iron, ductile iron, malleable iron, copper, aluminum and other non-ferrous metals. The sand has a very low thermal expansion coefficient and is resistant to metals