| A sucker rod coupling and reducer coupling I produced the coupling includes a sucker rod coupling and reducer coupling two, they are in accordance with the API Spec 11B design specifications, using high-quality carbon steel or alloy steel (equivalent to AISI 1045 or AISI 4135) made. Under normal circumstances, there are two wrenches on the hoop and the outer circle, but also can be provided without the spanner square according to the needs of users. After the heat treatment, the hardness of the T coupling is HRA56-62, which has good corrosion resistance and wear resistance. When the utility model is used, the sucker rod coupling is used for connecting the sucker rod with the same size, and the different diameter connecting rod is used for connecting the oil pumping rod with the size of the gap or the connecting rod and the sucker rod column. Please note that the use of sucker rod on the rod will lead to the breakdown of the collar. Technical parameters of the mechanical properties of tensile strength (MPa) = 655 (MPa = 405) yield strength elongation (%) = 16 section shrinkage (%) = 48 |
Chinese
English
