本研究以硫、磷、氯极压添加剂为基础,在四球试验机和钻削试验台上,通过正交设计试验找出最佳配比,然后在此基础上,研究了其它化合物对极压添加剂的增效作用,研制成功SC强力切削复合添加剂,该剂按20wt%比例加入到矿油中,可使机油的最大无卡咬负荷提高100%以上,烧结负荷提高200%以上,攻丝扭矩下降约40%. Based on the sulfur, phosphorus and chlorine extreme-pressure additives, the optimum ratio was found by orthogonal design test on a four-ball testing machine and a drilling test stand. Based on this, the effects of other compounds on extreme pressure Additive synergistic effect, the successful development of SC powerful cutting compound additives, the agent by 20wt% ratio added to the mineral oil, the maximum oil-free card bite load increased by 100%, the sintering load increased by more than 200%, tapping torque Down about 40%.