In the process of production, elbow can be effectively divided into long radius thick wall elbow and short radius thick wall elbow. A long radius thick wall elbow has a radius of curvature equal to 1.5 times the outer diameter of the pipe, i.e., R=1.5D. A short radius thick wall elbow has a radius
How to use the elbowAnalysis of the main reasons for the decline in quality of elbows and methods of attention:1. In pure bending, under the action of external force M, the outer arm wall of its neutral layer is thinned by tensile stress &1, and the inner side is under compressive stress. The result
1. It is inevitable to use various bends in various bends, such as marine pipes and automobile oil pipes. However, compared with other types of bends, arc bends have many advantages. First of all, various materials flow smoothly in the arc elbow, and the impact on the pipe wall is small and uniform.