基于PLC的呋喃树脂砂制备工艺优化控制  

Optimization Control of Furan Resin Sand Preparation Process Based on PLC

作　　者：赖华[1] 刘刚利 LAI Hua;LIU Gangli(Yibin Vocational and Technical College, Yibin 644000, China;School of Electrical Engineering, Chengdu Technological University, Chengdu 610000, China)

机构地区：[1]宜宾职业技术学院,四川宜宾644000 [2]成都工业学院电气工程学院,四川成都610000

出　　处：《热加工工艺》2018年第9期100-103,共4页Hot Working Technology

摘　　要：为了解决连续制备呋喃树脂砂时液料控制精度和出砂质量低的问题,应用Device Net总线主从站系统优化原呋喃树脂砂制备过程控制系统。树脂砂工艺优化采用Micro Logix PLC为主控制器,通过PID和变频调速定量控制固化剂、树脂等液料流量。监测制备前后砂温和水分,通过模糊控制器补偿固化剂和树脂流量输出,在线调整型砂成分。结果表明,优化后的固化剂、树脂等液料流量误差低于±3%,且树脂砂出砂质量得到有效保障。In order to solve the problems of low control accuracy and low sand quality of liquid material during the continuous preparation of furan resin sand, preparation process control system of furan resin sand was optimized by applying Device Net bus master slave system. The resin sand process optimization adopts Micro Logix PLC as the main controller, and curing agent, resin and other liquid flow rate were controlled quantificationally through PID and frequency control. Sand temperature and moisture before and after preparation were monitored. The curing agent and resin flow output were compensated by the fuzzy controller,and sand composition was adjusted on line. The results show that the flow error of curing agent, resin and other liquid after optimization is less than ±3%, and furan resin sand quality is effectively guaranteed.

关 键 词：呋喃树脂砂 控制系统 型砂质量 可编程逻辑控制器(PLC) 工艺优化 

分 类 号：TG242[金属学及工艺—铸造] TG231.2