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Mineral drilling
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Non-excavation drill rods are primarily used in horizontal directional drilling projects for pipeline crossings. The pipe bodies are made from specialized materials that meet API standards, ensuring consistent performance. Additionally, the pipe segments feature thickened sections compliant with the API5DP standard, with the thickened areas undergoing tempered heat treatment, enabling steel grades up to G105 or S135.
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Friction-welded drill rods (including down-the-hole and external-flat drill rods) are primarily used in rock drilling and breaking, anchoring boreholes, geothermal air-conditioning holes, and water well drilling, among other applications. The tube bodies are made from materials sourced from well-known, large-scale domestic steel companies, and both ends of the tubes feature an internal thickening process. After friction welding, the rods undergo a tempering treatment to ensure optimal strength and durability.
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The drill rod with fine threads connects to the locking joint, transmitting the drill rig's torque to the bit at the bottom of the well while also serving as a conduit for circulating drilling fluid. The rod is made from Shanghai Baosteel's STM-R780 (42MnMo7) material, which resists fatigue, bending, and breakage, ensuring stable and reliable performance.
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Applied in geological exploration, well drilling, and geothermal well drilling projects.
The drill string with a pin connection is linked to the locking joint, transmitting the drill rig's torque to the downhole drill bit while also serving as the tool responsible for circulating drilling fluid during the drilling process.
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