铸铝件防粘砂措施的探究与应用  

Anti Burning-On Method Study and Application for Aluminum Alloy Casting

作　　者：傅旭 唐志强 

机构地区：[1]一汽铸造有限公司成都有色铸造分公司,四川成都610199

出　　处：《铸造》2017年第9期995-997,1000,共4页Foundry

摘　　要：以EA211汽车发动机铝合金缸盖铸件为对象,试验研究了不同原砂、树脂和涂料种类对铸铝缸盖铸件粘砂行为的影响。结果显示,铸件热节部位和冒口部位由于长时间处于高温状态而极易粘砂;宝珠砂比再生硅砂有更为优异的防粘砂性能;综合考虑防粘砂效果和成本,砂芯采用涂料流涂方式,效果最佳。In this paper, we discussed the effect of sand type, binder and coating type on anti burning-on for EA211 aluminum alloy cylinder head castings. The results show that burning-on easily occurred at the riser and hot spot, where the temperature is high for long time in casting. The bauxite sand has better anti burning-on capacity than reclaim sand. Flow coat is the best process to achieve anti burning-on when considering anti burning-on effect and cost.

关 键 词：铝合金 粘砂 宝珠砂 涂料 

分 类 号：TG292[金属学及工艺—铸造]