低温燃烧合成法制备纳米α-Al_2O_3隧道窑温度控制系统的设计及应用  

Design and application of temperatore control system of tunnel kiln for preparation of nanometer α-Al_2O_3

作　　者：李斌川[1] 翟秀静[1] 符岩[1] 陈凯军[1] 

机构地区：[1]东北大学材料与冶金学院,沈阳110004

出　　处：《材料与冶金学报》2008年第2期122-125,共4页Journal of Materials and Metallurgy

基　　金：国家自然科学基金资助(50174016)

摘　　要：针对低温燃烧合成法制备纳米α-Al2O3的工艺要求,设计了以西门子S7-200可编程序控制器和通用PC为核心的集散式控制系统,用于隧道式多温区电加热炉的温度控制.系统管理软件由Visual Basic语言结合数据库技术实现,界面友好。温控系统测试结果表明系统超调≤4%,稳态误差≤2℃,控温结果符合要求.Aimed at the preparation of nanometer a - Al2O3 powder, the distributed control system for multiple temperature zones of electrical tunnel kiln is designed, comprising an IBM - PC and an S7 - 200 PLC. The management software is developed with Visual Basic and database with a friendly interface. The result shows that the overshoot of the temperature is below 4% and the steady - state error is below 2℃. The system can achieve good control performance and satisfy the design rezuirement.

关 键 词：纳米Α-AL2O3 低温燃烧合成 集散式控制系统 温度控制 

分 类 号：TF123.7[冶金工程—粉末冶金] TP273[冶金工程—冶金物理化学]