Method for producing hot-bending elbow

Abstract

The invention discloses a method for producing a hot-bending elbow, and relates to the technical field of treatment of metal pipes and piping systems. The method comprises the following steps: purchasing raw materials, and storing; inspecting the raw materials; bending to obtain the elbow; carrying out first sample inspection and self-inspection; heat-treating; shaping before beveling; beveling; grinding welding seams; carrying out nondestructive inspection; carrying out product inspection; and packing, and sending the finished products out of the factory. From purchasing the raw materials to sending the finished products out of the factory, the invention specifies a complete and strict technological process. Thus, the invention has the advantages of safe production process, high speed, controllability and stable quality, and is a refined method for producing hot-bending elbows.

Description

Hot simmering pipe bending process technical field The invention relates to a hot-simmering pipe bending process. It relates to the technical field of processing of metal pipes and piping systems. Background technique Bend pipe is a pipe material widely used in pipeline construction, and it is one of the important key products. It plays a major role in the pipeline, one is to change the direction of the pipeline, and the other is the structural mechanics, which can buffer the tensile and compressive stress and torque added to the straight pipe by the stratum migration, earthquake and external environment temperature changes where the pipeline is located. The performance of the elbow directly affects the reliability, safety and economy of pipeline transportation. Therefore, the processing technology of the bent pipe is particularly important. At present, the processing technology of the bent pipe is basically mature, and the produced bent pipe can basically meet the requ...

AI Technical Summary

Problems solved by technology

However, because the production method is not strict enough, the quality control of the bent pipe is not strict enough, so the quality of the bent pipe is not satisfactory.

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