Threaded connection having high galling resistance and method of making same
作者： Angelo Canavera , Alberto Alaria
DOI:
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摘要: A process for treating a pin having an external threaded portion and box internal wherein the provides threadable joint high galling resistance. One embodiment of present invention includes applying lubricant on at least one box. The is made up by threadably engaging portions to recommended torque according American Petroleum Institute then breaking out joint. making step with applied performed plurality times. case hardened. from this highly resistant without requirement any lubricant.
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