采煤机摇臂铸件缺陷分析及防止措施OA北大核心CSCDCSTPCD
Shearer Rocker Arm Casting Defect Analysis and Its Preventive Measures
为解决采煤机摇臂铸造生产中出现的铸造缺陷,对铸件的结构特点进行了分析,并运用顺序凝固理论,设计浇冒系统及内外冷铁的安放位置.采取提高砂芯的退让性、制定合理的浇注工艺等项措施.结果表明:铸件内形成了顺序凝固的温度梯度,缩孔、缩松、裂纹、夹渣、气孔等缺陷得到有效防止；经机加工和探伤等检验,产品满足技术要求.
The structural characteristics of shearer arm were analyzed, and gating and riser system and the position of the chills were designed by using of solidification theory for solving the casting defects of shearer arm production. The measures were adopted, such as increasing the deformability of sand core and establishing of reasonable pouring process, etc. The results show that the temperature gradient beneficial to sequential solidification was established, a…查看全部>>
陆亦工;岳先才;曹文
新疆工程学院,新疆乌鲁木齐830091无锡市铸造有限公司,江苏无锡214115中国联合工程公司,浙江杭州310022
矿业与冶金
采煤机摇臂铸件缺陷凝固理论
shearer rocker arm casting defect solidification theory
《铸造》 2012 (5)
530-532,3
评论