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发明公开
CN110651148A 管用螺纹接头及管用螺纹接头的制造方法 有权

管用螺纹接头及管用螺纹接头的制造方法
摘要：
本发明提供一种具有高的过扭矩性能的管用螺纹接头及其制造方法。本实施方式的管用螺纹接头(1)具备公扣部(5)和母扣部(8)。公扣部(5)和母扣部(8)具备具有螺纹部(4)、(7)以及无螺纹金属接触部的接触表面(6)、(9)。管用螺纹接头(1)在公扣部(5)和母扣部(8)中的至少一者的接触表面(6)、(9)上具备固体润滑覆膜层(21)，所述固体润滑覆膜层(21)含有树脂、固体润滑粉末以及Cr2O3。
摘要（英）：

The present invention provides a threaded joint for pipes that has excellent over-torque performance, and a method for producing the same. A threaded joint (1) for pipes according to the present embodiment comprises a pin (5) and a box (8). The pin (5) and the box (8) each have a threaded part (4, 7) and a contact surface (6, 9) including a non-threaded metal contact part. The threaded joint (1) for pipes comprises, on the contact surface (6, 9) of the pin (5) and/or the box (8), a solid lubricating film layer (21) including a resin, a solid lubricating powder, and Cr2O3.

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