基于铸件斜面及螺旋面结构特征的砂型铸造浇注系统优化设计  

Optimal Design of Gating System for Sand Mold Casting Based on Structural Characteristics of Inclined Plane and Spiral Face

作　　者：杨武红 丁旭[1] 沈刚 方金祥[1] 田龙 谭宇函 YANG Wuhong;DING Xu;SHEN Gang;FANG Jinxiang;TIAN Long;TAN Yuhan(College of Mechanical Engineering,Guizhou University,Guiyang 550025,China;China Aviation Guizhou Honglin Aviation Power Control Technology Company,Guiyang 550009,China)

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025 [2]中国航发贵州红林航空动力控制科技有限公司,贵州贵阳550009

出　　处：《铸造技术》2022年第3期212-216,共5页Foundry Technology

基　　金：国家自然科学基金(No.51905117);贵州省自然科学基金重点项目(黔科合基础-ZK[2021]重点053)。

摘　　要：当铸件具有斜面或螺旋面的结构特征时,可利用自身结构特征设置出类似蛇型或鹅颈型的浇注系统,蛇型或鹅颈型的浇注系统可增加流动阻力,降低流速,减少和防止液态金属的冲击、飞溅和氧化。分析比较了几种具有斜面或螺旋面结构特征铸件的典型浇注系统设置方案。结果表明,通过利用金属液在斜面及螺旋面平稳缓流的特点,在铸件的斜面或者螺旋面设置浇注系统,可以使液体金属的充填既具有底注式浇注系统的充型平稳、金属氧化轻、对型(芯)冲击小,有利于排气、充型快和挡渣能力强的优点,又改善了底注式浇注系统的造型复杂、金属消耗量大的缺点。When the casting has inclined or spiral surface structure characteristics,its own structural characteristics to set up a similar snake or goose neck gating system can be set up,snake or goose neck gating system can increase the flow resistance,reduce the flow rate,reduce and prevent the impact of molten metal,splash and oxidation.Several typical casting system setup schemes with inclined or helical structure were analyzed and compared.The results show that by use of molten metal in the slope and the characteristics of the helical surface smooth flow,it is set up in the slope or helical surface of the casting gating system,it can make the molten metal filling both are characterized by their smooth bottom note type gating system of filling,metal oxide light,small impact on type(core),and advantageous to the exhaust,the advantage of fast filling and strong ability of slag,The disadvantages of complex shape and large metal consumption of bottom gating system are improved.

关 键 词：斜面/螺旋面结构 砂型铸造 浇注系统 工艺优化 

分 类 号：TG242[金属学及工艺—铸造]