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石油三牙轮钻头,是钻具中直接与井底接触,用来破碎岩层的工具,是采掘工业中的关键性工具。直接关系到采掘效率和钻井成本。提高三牙轮钻头的使用寿命,对增加石油产量具有重大意义。牙轮钻头的使用寿命由许多因素决定,但绝大部分牙轮钻头是因轴承的破坏而报废,而牙轮钻头小轴端面及轴颈二处摩擦付,是影响钻头轴承寿命的重要因素之一。国外石油牙轮钻头小轴堆焊用的材料是高碳钴铬钨合金。此种材料具有良好的耐磨、
Oil tricone bit, drill tool is in direct contact with the bottom of the hole, used to crush the rock formation tools, mining industry is the key tool. Directly related to mining efficiency and drilling costs. Improve the service life of three cone bit, to increase oil production is of great significance. Tricone bit life depends on many factors, but the vast majority of roller cone bit is scrapped due to the destruction of the bearing, while the roller cone bit and shaft journal end friction pay, is an important factor affecting the life of bit bearings one. Foreign oil roller cone bit welding materials used in high-carbon cobalt chromium tungsten alloy. This material has a good wear-resistant,