五包合浇生产122t葛洲坝转轮体铸件  

Production 122 Tons of Gezhouba Runner Hub Casting by 5 Ladles Combined Pouring

作　　者：杨程坤 叶文辉 吴仁贵 杨茂一 YANG Cheng-kun;YE Wen-hui;WU Ren-gui;YANG Mao-yi(Liaoning Fuan Heavy Industry Co.,Ltd.,Anshan 114016,Liaoning,China;China Foundry Association,Beijing 100084,China)

机构地区：[1]辽宁福鞍重工股份有限公司,辽宁鞍山114016 [2]中国铸造协会,北京100084

出　　处：《铸造》2023年第12期1649-1652,共4页Foundry

摘　　要：基于葛洲坝水电站转轮体的结构特点及冶炼设备和天车起吊能力,制定了5包合浇、2包补浇冒口的浇注工艺及在地坑中于880~900℃切冒口的打箱工艺。通过空包演练浇注过程,确定了每包出钢、保温和浇注的时间,成功浇注了净重122 t的葛洲坝水电站转轮体;采用地坑中热切冒口、利用余热退火工艺,弥补了天车能力不足,保证了铸件的顺利生产。Based on the structural characteristics of runner hub used for Gezhouba hydropower station,the capacity of smelting equipment and the lifting capacity of crane,the pouring process of 5 ladles combined pouring and then 2 ladles pouring in the riser was practiced and cutting the riser in the pit at 880-900℃ are formulated in this paper.The parameters of tapping,re-heating and pouring for each ladle was determined via the pouring process with 5 empty ladles,then the runner hub with net weight of 122 tons was successfully poured.Cutting riser in the pit and the annealing process was performed to make up for the shortage of crane capacity and ensure the smooth production of castings.

关 键 词：5包合浇 转轮体 冒口补浇 ZG20MnSi 

分 类 号：TG26[金属学及工艺—铸造]