提高矿用牙轮钻头轴承寿命的稀土渗碳研究  

Research on the Service Life of Blast Hole Rock Bit Bearing Subjected to Rare-earth-element Carburizing

作　　者：陈玉成[1] 从善海[2] 

机构地区：[1]江汉石油钻头股份有限公司,湖北潜江433124 [2]武汉科技大学,湖北武汉430081

出　　处：《武汉科技大学学报》2003年第4期343-345,共3页Journal of Wuhan University of Science and Technology

摘　　要：研究了稀土元素对牙轮钻头渗碳过程的影响。试验结果表明,加入稀土元素,使渗碳速度提高20%～30%,经渗碳 渗硼复合强化后,钻头轴承的寿命提高24.8%～27.8%,其穿孔米道提高率达25%～28%。Effects of rare earth elements (RE) on the carburizing process of blast hole rock bits are studied. The results show that the carburizing rate has increased by 20%～30% with the addition of RE.It is also found that the service life of the bit bearing subjected to carburizing-boriding combined strengthening has increased by 24.8%～27.8 %, and the drilling length of the bits treated by RE has increased by 25%～28%.

关 键 词：稀土元素 渗碳 牙轮钻头 轴承寿命 

分 类 号：TD632.9[矿业工程—矿山机电]