悬臂式掘进机回转台铸造工艺研究  

Research on Turning Platform Casting Process for Cantilever Type Road Header

作　　者：张磊[1,2] 陈显然[1,2] 

机构地区：[1]中国煤炭科工集团重庆研究院,重庆400039 [2]瓦斯灾害监控与应急技术国家重点实验室,重庆400039

出　　处：《热加工工艺》2014年第11期58-61,共4页Hot Working Technology

基　　金：国家发改委重点产业化项目(2006ZY02)

摘　　要：以EBZ135CT型悬臂式(固定臂)掘进机回转台为研究对象,对其结构特点和受力情况进行了综合分析,对它的铸造工艺进行了研究。结果表明,铸造工艺的合理性是回转台毛坯铸件质量的关键,退火工艺能够消除铸件应力、细化晶粒、消除缺陷、均匀成分、提高铸件尺寸稳定性和保证综合力学性能。Taking EBZ135CT cantilever type road header turning platform as a study subject, comprehensive analysis of its structure characteristics and stress condition were carded out. Its casting technology was studied. The results show that, reasonable casting process is the key of turning platform casting quality. The annealing process can eliminate casting stress, refine grains, eliminate defects, uniform composition, improve the dimensional stability and ensure the comprehensive mechanical properties of casting.

关 键 词：悬臂掘进机 回转台 铸造 缩孔 裂纹 

分 类 号：TG269[金属学及工艺—铸造]