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qian xi zuan gan jie tou sun huai de yuan yin
Pages: 40-41
Year: Issue:  4
Journal: Safety in Coal Mines

Keyword:  钻杆接头马氏体淬火高温回火;
Abstract: 本文针对高瓦斯矿井在打钻中容易出现的钻杆接头断裂事故、使用中存在的问题,进行了必要的理论分析及探讨。指出了钻杆接头断裂的具体原因及解决办法。
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