孕镶金刚石钻头的唇面微烧，是造成钻头非正常消耗的重要原因之一。这个问题早已引起人们的注意，也曾进行过讨论和分析，但至今没有根本解决，严重影响钻头寿命的提高。本文拟就孕镶钻头唇面微烧的征状、原因及消除微烧的措施谈几点认识。一、钻头唇面微烧的征状：从现场观察与资料分析，一般钻进中硬以上较完 One of the important reasons for the abnormal wear of the drill bit is the micro-burning on the lips of the impregnated diamond bit. This issue has already attracted people’s attention, but also discussed and analyzed. However, it has not fundamentally solved so far and seriously affects the life of the drill bit. This article intends to drill on the drill bit lip surface micro-burning symptoms, reasons and to eliminate some measures to talk about micro-burning know. First, the drill bit face burn symptoms: from the scene observation and data analysis, the general drilling more hard in the end