凿岩钎头用钢及其热处理工艺研究  

Research on Steels for Drill Bit and Their Heat Treatment Processes

作　　者：唐文龙 陈兴平 罗永忠 韩吉泽 罗江 余阳 TANG Weng-long;CHEN Xing-ping;LUO Yong-zhong;HAN Ji-ze;LUO Jiang;YU Yang(Guizhou Hui Feng Zhong Yi Machinery Manufacturing Co.,Ltd.,Guiyang 550000,Guizhou)

机构地区：[1]贵州惠沣众一机械制造有限公司,贵州贵阳550000

出　　处：《凿岩机械气动工具》2023年第3期45-48,共4页Rock Drilling Machinery & Pneumatic Tools

摘　　要：对高端凿岩钎头材料进行成分及工艺的优化,得到Si-Mn-Mo微合金化的新材料。调整热处理工艺,Si-Mn-Mo新材料具有高的强度、韧性及抗回火稳定性。利用该材料较高的抗回火稳定性及热膨胀系数,生产的高端凿岩钎头钢体冷却后对合金齿形成强大的固紧力,同时具有优良的强度、耐磨性和抗腐蚀性。在中硬岩凿岩作业条件下试验对比,新材料钎头同Cr-Ni-Mo材料钎头的凿岩进尺寿命相当,而材料成本下降较大。Through the optimization of the composition and process of high-end drill bit,the combination of Si,Mn and a small amount of Mo elements is micro-alloyed.After the heat treatment process is adjusted,the new material of Si-Mn-Mo can obtain high strength,toughness and tempering stability and other properties.By using the high tempering stability and thermal expansion coefficient of this material,the high-end drilling bit steel body can form a firm holding force on the alloy teeth after cooling,and has excellent strength,wear resistance and corrosion resistance.After being used in the medium hard rock drilling operation,the new material bit has a comparable drilling footage life with the Cr-Ni-Mo material bit,and can save the material cost more than the Cr-Ni-Mo material bit.

关 键 词：钎头 化学成分 热处理 显微组织 使用寿命 

分 类 号：TD421.2[矿业工程—矿山机电]