Method for improving strength of bent pipe

Abstract

The invention discloses a method for improving the strength of a bent pipe. The method comprises the following steps that S1, the structure of a bending die is improved, an annular groove is formed around the bending die, and a bulge is annularly and fixedly welded around the annular groove; S2, a bent pipe clamping die is arranged on one side of the bending die, a semi-circular groove is formed in the side, close to the bending die, of the bent pipe clamping die, and a pipeline is placed between the semi-circular groove and the annular groove of the bending die; and S3, a pipe bending machineworks to drive the pipeline to be bent through the bending die so that the bent pipe can be formed, and reinforcing ribs are pressed on the inner side of the formed bent pipe so that the strength ofthe bent pipe can be improved. The bulge is additionally arranged on the inner wall of the pipe bending die, so that the reinforcing ribs are formed on the surface of the bent pipe during forming, andthe strength of the bent pipe is improved without change of the material consumption.

Description

technical field [0001] The invention relates to the technical field of bent pipes, in particular to a method for improving the strength of bent pipes. Background technique [0002] The pipe bending mold is a mold used to bend straight pipes into various shapes of pipes. When in use, it is installed on the pipe bending machine, and the straight pipes are bent and formed by manpower or machines. The pipe bending mold generally includes a wheel mold body, a main mold and a guide mold. [0003] The patent with the application number CN201620217601.2 discloses a pipe bender wheel mold, specifically a pipe bender wheel mold, which belongs to the technical field of mold products. It includes a wheel mold body, a main mold, a guide mold and a wheel mold fixing insert. A square insert mounting hole is arranged in the center of the wheel mold body, and a square wheel mold fixing insert is arranged in the insert mounting hole. The first pipe groove of the wheel clamp and the second p...

AI Technical Summary

Problems solved by technology

The invention has a simple, compact and reasonable structure, and can fix the main body of the wheel mold with different specifications on the machine through a wheel mold fixing insert, which improves the versatility of the equipment; after the wheel mold fixing insert is damaged, only the wheel mold needs to be replaced Fixed inserts reduce the production cost. However, in order to increase the strength of the bending pipe in the existing pipe bending process, the countermeasure can be simply increased by increasing the wall thickness, but this increases the material cost of the product.

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