消除JL465Q缸体渗漏缺陷的措施  

Elimination Leakage Defect on JL465Q Cylinder Body

作　　者：谢寨川[1] 邹荣剑[1] 

机构地区：[1]重庆大江工业集团铸锻公司,重庆401321

出　　处：《铸造技术》2010年第4期392-395,共4页Foundry Technology

摘　　要：JL465Q缸体的型腔结构复杂,热节部位多,易造成渗漏缺陷,渗漏废品率最高时达到了15%。通过从铸造工艺、孕育处理、浇注温度等几方面对JL465Q缸体渗漏缺陷产生的原因进行分析,采取调整浇注温度、孕育剂种类和孕育加入量,以及使用激冷涂料和SD-2NC高强度覆膜砂等措施,有效地解决了缸体的渗漏缺陷。Because of the complex cavity structure of JL465Q cylinder body, which has many hot spots, so that the leakage defect often appears after machining and the rejection rate owing to the leakage achieves 15%. The casting technology, inoculation, pouring temperature were analyzed, and some measures of adjusting pouring temperature, change the inoculant＇s type and additions, using the coating with chill effect and the SD-2NC high strength precoated sand so on, the leakage defect on cylinder body was eliminated.

关 键 词：缸体 渗漏 浇注温度 激冷涂料 覆膜砂 

分 类 号：TG245[金属学及工艺—铸造]