低应力铸铁小件的生产  

Production of Light-duty Parts of Low-stress Cast Iron

作　　者：佟晶涛 杨远东[1] 薄玉发 韩亚伟[1] 王强[1] 聂爽[1] TONG Jingtao;YANG Yuandong;BO Yufa;HAN Yawei;WANG Qiang;NIE Shuang(Yinfeng Foundry Co.,Ltd.,Shenyang Machine Tool Group.Shenyang 110200,Liaoning China)

机构地区：[1]沈阳机床银丰铸造有限公司,辽宁沈阳110200

出　　处：《铸造工程》2019年第2期56-58,共3页Foundry Engineering

摘　　要：简要介绍了低应力铸铁的一些特点。在低应力灰铸铁的生产中,炉前控制较为困难。生产实践和分析研究表明,低应力铸铁可通过控制三角试片的宽度来获得所需的力学性能,并稳定铸件的质量,使铸件的废品率从原先的13%降低到5%以下。Some characteristics of low-stress cast iron were briefly introduced.On丒the丒spot control is relatively difficult in producing low-stress cast iron.From production practice and investigation it was seen that control of width of trigonal specimen might cause the low-stress cast iron to exhibit desirable mechanical properties,and quality of castings to become stable,thus reducing the rejection rates form original 13%to 5%.

关 键 词：低碳 高硅 低应力铸铁 人工时效 

分 类 号：TG242[金属学及工艺—铸造]