基于小波的挤压铸造运动参数研究  

The Investigation of Movement Parameters in Squeezing Casting Based on Wavelet

作　　者：宋雷[1,2] 邵明[2] 

机构地区：[1]广州科技贸易职业学院,广东广州510442 [2]华南理工大学国家金属材料近净成形工程技术研究中心,广东广州510640

出　　处：《铸造》2014年第1期26-29,共4页Foundry

基　　金：国家科技支撑计划资助项目(2011BAE21B02);广东省教育部产学研结合重大专项(2009A090100026)

摘　　要：以KDJ-250T挤压铸造机为对象,利用小波变换对通过挤压铸造试验采集到的相关挤压运动参数进行了2层小波分解,并进行了分析。结果发现:挤压压力和冲头位移在挤压过程中具有较好的稳定性,挤压速度和挤压加速度具有明显的随机性;提高挤压运动参数的稳定性的关键是减小冲头与压室之间的摩擦。The KDJ-250T was researched in this paper, and squeeze movement parameters which was gathered by squeeze casting experiments were decomposed by wavelet transform with 2 layers. The results show that the injection pressure and plunger tip displacement are stable, injection velocity and injection acceleration are obvious randomness, decreasing fxiction between plunger tip and shot sleeve is the key to enhance injection movement parameters stability.

关 键 词：挤压铸造 运动参数 小波分析 

分 类 号：TG249.2[金属学及工艺—铸造]