白口铁抗小麦籽粒粉料的磨料磨损试验研究  

Experiment of White Iron Abrasive Wear for Wheat Grain Powder

作　　者：张克平[1] 姜良朋 姚亚萍[1] 

机构地区：[1]甘肃农业大学工学院,兰州730070

出　　处：《中国粮油学报》2017年第1期109-112,140,共5页Journal of the Chinese Cereals and Oils Association

基　　金：国家自然科学基金(51265001);中国博士后科学基金(2014M562471);甘肃农业大学伏羲青年英才培养计划(FXYC20130103);甘肃农业大学青年导师基金(GAU-QNDS-201405)

摘　　要：为了研究小麦粉加工时,辊式磨粉机磨辊与物料之间的磨料磨损状况,本研究选用与辊式制粉工况相似的磨料磨损试验机,应用正交试验法考察了小麦籽粒粉料粒度、转速和轧距对白口铁磨损性能的影响,采用扫描电子显微镜对其磨损表面形貌进行观察。结果表明,磨料粒度对白口铁磨损性能的影响极为显著,磨损的主要形式有塑变疲劳剥落、多冲疲劳磨损和脆性剥落。研究结果可为提高磨辊的耐磨性和减少加工过程对面粉的金属污染提供参考。The abrasive wear testing machine similar to the roller mills was used to study the abrasive wear con- dition between rollers and materials during flour processing. The orthogonal test method was used to investigate the effect of abrasive particle size, rotation speed and rolling gap of rollers on white iron wear performance. The scanning electron microscope was applied to observe the topography of wear surface. Results showed that the abrasive particle size was the most important factor which affected the wear properties. The main wear forms were plastic spalling, re- peated fatigue wear and the brittle spalling. The conclusion could provide basic reference to improve the wear resist- ance of grinding roller and reduce the metallic pollution during wheat powder processing.

关 键 词：小麦 辊式磨粉机磨 料磨损 磨辊 磨损特性 

分 类 号：TH117.1[机械工程—机械设计及理论]