摘要
在昆钢大红山铁矿湿磨工况下,开展湿式半自磨机衬板的失效行为研究。采用OM、SEM、EDS、硬度仪等手段分析了失效衬板组织特征,并讨论了衬板材料在弱酸工况的腐蚀磨损机理。结果表明:失效衬板表面主要以切削犁沟、腐蚀坑和裂纹为主。高锰钢表面硬度低、加工硬化效果不明显及腐蚀磨损的交互作用是导致衬板失效的主要原因。
The failure behavior of wet type semi self-mill lining plate was researched under the condition of Kun-steel Dahong mountain iron mine wet grinding. The microstructure feature of failure lining plate was analyzed by OM, SEM, EDS, hardness tester and other modem analysis methods. The corrosive wear mechanism of lining plate material in weak acid condition was discussed. The results show that the surface of failure lining plate mainly contains cutting furrow, corrosion pits and cracks. The interaction of low surface hardness of high manganese steel, unconspicuous hardening effect and corrosion wear arc the main reasons for leading to the failure of lining plate.
出处
《热加工工艺》
CSCD
北大核心
2016年第6期159-162,共4页
Hot Working Technology
基金
广东省专业镇中小微企业服务平台建设项目资助(2013B0916-01005,2013B091601004)
广东省公益研究与能力建设专项(2015B070701026)
广东省产学研合作项目(2015B090906014)
广东省应用型科技研发专项(2015B090926009)
广州市协同创新重大专项项目资助(201508010061)
关键词
高锰钢
弱酸性
腐蚀磨损
失效分析
high manganese steel
weak acidic
corrosive wear
failure analysis
