摘要
工程建筑用框架形结构铸钢节点是一种需要承受压力、震动、扭曲等交变载荷的零件,虽然结构不复杂,但部件质量要求高。根据产品的运行工况状态、物理性能指标要求、疲劳试验检验要求,结合产品的结构特点,进行工艺分析,识别易产生的铸造缺陷。通过采取合适的浇注系统、冒口、冷铁等工艺措施,铸造出组织致密且实物本体试样力学性能符合材质标准要求的产品。
Casting steel joint with frame structure for engineering construction projects is a part that is subjected to pressure, shock, and distortion, with high requirements for internal quality of castings. In the present study,according to the product’s working condition, physical performance index and fatigue test requirements, and combined with its structural characteristics, the casting process analysis was carried out to identify the casting defects easily produced. Through designing reasonable gating and riser system, and placing chills at proper locations, the castings with compact structure were successfully produced, and the mechanical properties of the test sample cut from casting meet the requirements of technical specifications.
作者
何氢玲
陈祖华
宋仲明
HE Qing-ling;CHEN Zu-hua;SONG Zhong-ming(CRRC Yangtze Tongling Co., Ltd., Tongling 244142, Anhui, China)
出处
《铸造》
CAS
北大核心
2019年第5期512-515,共4页
Foundry
关键词
框架形结构铸钢节点
铸造工艺设计
组织致密
casting steel joint with frame structure
casting process design
compact structure
