球铁石墨漂浮和灰斑缺陷的控制  

Control of Graphite Floating and Grey Spot in Ductile Iron Casting

作　　者：诸海鸿 华国 

机构地区：[1]苏州沙特卡铸造有限公司,江苏苏州215143

出　　处：《铸造工程》2011年第2期28-30,共3页Foundry Engineering

摘　　要：分析了感应炉熔炼的不同壁厚球墨铸铁件产生石墨漂浮和灰斑缺陷的原因。通过采取按铸件结构单独配料、低温浇注厚壁铸件、确保炉料清洁等措施，消除了铸件缺陷，提高了铸件成品率。Graphite floating and grey spot defects were analyzed with different thickness ductile iron casting melted by induction furnace. With specialized formula according to casting structure, lower pouring temperature for heavy thickness casting and keeping cleaning of charging, the defects and reject rate can be reduced.

关 键 词：球墨铸铁 石墨漂浮 灰斑 

分 类 号：TG245[金属学及工艺—铸造]