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This article provides practical recommendations for improving the quality of pipe fittings based on an analysis of key production issues identified through statistical analysis and the 5M1E method. The recommendations focus on key stages, including design, procurement, and manufacturing, to improve...

The forming methods and material types for pipe fittings used in oil and gas pipelines are diverse and complex (Table 1). However, domestic manufacturers lag behind their international counterparts in critical areas such as material selection, production capacity, automation, and advanced testing...

Abstract This paper examines the indispensable role of pipe fittings in oil and gas pipeline engineering, emphasizing the stringent demands they must meet under extreme conditions, including high pressure, elevated temperatures, and corrosive environments. Essential components such as elbows, tees,...

Abstract Several factors influence the electrodeposition process on the inner walls of pipe fittings. This paper examines the impact of plating solution properties and process conditions on the quality and efficiency of electrodeposition in these pipe fittings.   Properties of Plating Solutions...

Abstract: Many factors affect electrodeposition on the inner wall of pipe fittings. This paper mainly discusses the influence of the pretreatment process and current properties on electrodeposition in these applications.   Influence of Pretreatment Process on Electrodeposition on the Inner...

Faraday's law indicates that the uniformity of the cathode surface coating during electrodeposition is closely related to the average current density at each location on the cathode. During electrodeposition on the inner wall of a complex-shaped pipe fitting, using only a regular-shaped inner anode...

1. Stress Analysis of Reducers Under Theoretical Load Conditions To verify the accuracy of the calculation model, a finite element stress analysis of the reducers under theoretical load conditions was first carried out. The outer diameter of the reducer’s bigger end was selected as 406.4...

Introduction High-temperature steam pipeline systems are widely used in the petrochemical, electric power, metallurgy, and other industries. Reducers, as crucial components, are responsible for connecting pipes of different diameters. Under high temperatures and...

Introduction A reducer is a common pipe fitting used in the steam-water pipe system of a thermal power plant, designed for connecting pipes of different diameters. According to different structural types, reducers are divided into concentric reducers and eccentric reducers. One common...

  Pipe Elbows are indispensable components in piping systems, and their manufacturing processes are crucial for connecting and bending pipes. In engineering practice, cold bending and hot bending are two common methods used in pipe elbow fabrication, each with its own characteristics suitable for...