气冲造型线回用旧覆膜砂的生产实践  

Productive Practice of Reclaiming Returned Resin-Coated Sand on Air-Impact Molding Line

作　　者：谭博文 

机构地区：[1]柳州五菱柳机动力有限公司,广西柳州545005

出　　处：《现代铸铁》2012年第3期45-47,共3页Modern Cast Iron

摘　　要：对采用覆膜砂回用砂混制湿型粘土砂的生产实践进行了介绍,包括砂处理流程、原材料的选用、砂温控制、混制工艺及在线检测等方面的控制要点;指出:采用恰当的加料顺序和混碾时间,并进行在线检测是保证湿型粘土砂质量稳定,进而使与型砂相关的铸件表面缺陷率降低的重要措施。The productive practice of using returned phenol resin coated sand to prepare green molding sand was introduced including the sand treating flow and the essential control points in the aspects of raw materials choice, sand temperature control, sand mixing process and on-line inspection, and so on. It was pointed out by the end that adopting proper materials adding sequence, proper mixing time and, as well as, conducting on-line inspection were the important measures to guarantee stable quality of green molding sand and thereby to reduce the molding sand-relevant surface defects rate of castings.

关 键 词：气冲造型 覆膜砂回用砂 湿型砂 

分 类 号：TG221[金属学及工艺—铸造]