【作者】 王海龙；

【导师】 李智超； 李卫；

【作者基本信息】 辽宁工程技术大学 ， 材料加工工程， 2004， 硕士

【摘要】 课题研究了高锰钢和中铬钢在热强碱性铝矿浆中的沖击腐蚀磨损特性，为该工况下球磨机衬板的合理选材提供依据，丰富了冲击腐蚀磨损理论，研究并改制了一台沖击腐蚀磨损试验机。 采用研制的冲击腐蚀磨损试验机和扫描电镜并借助于金电极局部阴极极化曲线，定量分析并研究了热强碱性铝矿浆介质中高锰钢和中铬钢的冲击腐蚀磨损及交互作用特性。结果表明，磨损分量在总冲击腐蚀磨损失重率中所占比例很大，纯腐蚀量所占比例很小；磨损对腐蚀有明显促进作用，磨损是造成腐蚀的主要原因；腐蚀对磨损的促进作用失重率高于纯磨损失重率并占总沖击腐蚀磨损失重率的50％以上，腐蚀对磨损的促进作用是冲击腐蚀磨损失重的主要原因。在热强碱性铝矿浆冲击腐蚀磨损条件下，中铬钢的抗磨蚀性能优于高锰钢。中铬钢比高锰钢更适宜于制造氧化铝厂球磨机衬板。更多还原

【Abstract】 This paper studies the corrosion and wearing and tearing characteristic of high manganese steel and medium- chromium steel in hot strong alkaline and the ore pulp of aluminum, Ball mill welt select suitable materials basis of offering rationally for operating mode this, Assault and corrosion the wearing and tearing theory abundantly. Study and an assaults and corrosions and wears and tears the testing machine.Apply the machine and SEM and the cure of partly polar, analysis quantity the interaction of corrosion the wearing and tearing characteristic of high manganese steel and medium- chromium steel in hot strong alkaline and the ore pulp of aluminum. As the result shows, the percent of wearing increase in rate of all weightlessness, on the contrary, the rate of pure corrosion decrease. Wearing will increase the ability of corrosion, and wearing is the main reason of affect the ability of corrosion. The rate of weightlessness in affection of corrosion is higher than in pure wearing, which is make up the rate that is more than 50 percent. So the effect of corrosion impulse to wearing is the main reason of weightlessness impulsive corrosion. In conclusion, the anticorrosion of medium-chromium steel is better than high manganese steel in the environment in hot strong alkaline and the ore pulp of aluminum. So former is moresuitable than later form the operating mode of ball mill machine offering aluminum oxide factory.更多还原