What are the causes of thread sticking in non-magnetic drill pipes


release time:2026-06-10

source: Internet

       The emergence of non-magnetic drilling tools has indeed brought great convenience to our work, but there are still some situations that may occur during use, such as the phenomenon of non-magnetic drilling tool threads sticking. So, what are the reasons for the phenomenon of non-magnetic drilling tool threads sticking?
1. Reason for thread damage: The use of non-magnetic drilling tools often causes damage to the threads, such as collision and deformation. When threading, the deformed part of the thread may be affected by high tangential and compressive stresses, resulting in plastic deformation and easy adhesion problems.
2. Reason for thread parameters: When re threading some threads, basic parameters such as tooth height, tight distance, or pitch are excluded from the specified tolerance range, which will lead to increasing compressive stress and premature thread sticking.
3. Reason for fastening: If the connection is improper during fastening, there may be a tilt angle between the connecting threads; Resulting in issues of incorrect and stuck fasteners. Excessive speed of fastening can cause the metal at the friction interface to soften, resulting in the adhesion of the female and male fasteners, and thus the phenomenon of sticking occurs. In addition, uneven application of thread grease, demagnetization of non-magnetic drilling tools, and incomplete demagnetization can also cause sticking.
 

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