石灰石旧砂回收使用的研究  

The Research on Using Reclaimed Limestone Sand

作　　者：郗丽清[1] 刘恒亮[2] 

机构地区：[1]营口职业技术学院,辽宁营口市115000 [2]锦州薛家配件厂,辽宁锦州市121003

出　　处：《中国铸造装备与技术》2007年第5期18-20,共3页China Foundry Machinery & Technology

摘　　要：研究了石灰石旧砂回收的几个方案,着重试验了影响旧砂干强度和保存性几个因素。结果表明,在旧砂混制中加入碳酸钠和水,在保证干强度前提下能显著改善旧砂混制后的保存性,满足生产要求。The methods of using reclaimed limestone sand have been researched with emphasis on the influencing factors of dry strength and store suitability.The result showed that dry strength could be assured with clear improved store suitability when sodium carbonate and water have been added in process of preparation with the reclaimed sand. It has met the requirements for using in production.

关 键 词：石灰石旧砂 回收使用 

分 类 号：TG221[金属学及工艺—铸造]