摘要
针对磨粉机齿辊工作过程中长期存在的磨损问题,应用等离子弧束对辊齿表面进行淬火处理,增强辊齿耐磨性,以提高制粉效率。对磨辊表面的硬化层深度、表面硬度以及沿硬化层深度方向显微硬度分布状况的影响规律进行了研究,并对其组织变化进行了理论分析。磨辊齿经等离子弧表面淬火后硬化层的厚度约为0.3 mm,硬度值可达到850 HV。
With the aim of a long -term existing problem on abrasion of the fluted roll in a roller mill,, the technology of quenching for fluted roll by plasma arc was applied to strengthen wear resistance and improve milling efficiency. The depth of hardened layer, sur- face hardness and distribution of micro - hardness along the depth were studied, and the metallurgical structure change of the sample was analyzed particularly. The depth of hardened layer after surface quenching was about 0.3mm and the hardness was up to 850 HV.
出处
《粮食与饲料工业》
CAS
北大核心
2007年第10期7-8,共2页
Cereal & Feed Industry
基金
河南省教育厅基础研究项目
关键词
磨辊
等离子弧
表面淬火
硬度
milling roller
plasma arc
surface quenching
hardness
