为满足泥浆泵动力端齿轮传动副耐疲劳、抗点蚀及防断齿的要求,石油部部颁新标准中,要求采用中硬齿面齿轮。为此,我厂与清华大学、北京石油机械研究所等单位合作,应用TiN和TiC涂层滚刀对实体滚切中硬齿面齿轮进行了研究。结果表明,经涂层后的滚刀寿命可提高200～300％。在取得较高切削生产率的同时,齿面粗糙度Ra可稳定在6.3μ(相当于旧标准▽5～▽6)。 In order to meet the requirement of fatigue resistance, anti-pitting and anti-sabotage of gear drive gear on the power end of mud pump, the Ministry of Petroleum issued a new standard requiring the use of hardened gear. To this end, I plant and Tsinghua University, Beijing Institute of Petroleum Machinery and other units in cooperation, the use of TiN and TiC coated Hob on the solid hobbing hard gear in the study. The results show that the hob life after coating can be increased by 200 to 300%. While achieving higher cutting productivity, the surface roughness Ra can be stabilized at 6.3μ (equivalent to the old standard ▽ 5 ~ ▽ 6).