RESEARCH AND QUALITY ASSURANCE OF THE LARGE VALVES  MANUFACTURE FOR TRUNK PIPELINES

Riza Gabdyssalyk; Karibek Sherov; Sayagul Tussupova; Olga Zharkevich; Sergey Mirgorodskiy; Aigerim Izotova; Aizhan Taskarina; Assylkhan Mazdubay; Almat Sagitov

doi:10.5937/jaes0-23523

Riza Gabdyssalyk D.Serikbayev East Kazakhstan State University, Department of mechanical engineering, Ust-Kamenogorsk, Kazakhstan
Karibek Sherov Karaganda State Technical University, Department of Technological equipment, mechanical and standardization, Karaganda, Kazakhstan
Sayagul Tussupova Karaganda State Technical University, Department of Technological equipment, mechanical and standardization, Karaganda, Kazakhstan
Olga Zharkevich Karaganda State Technical University, Department of Technological equipment, mechanical and standardization, Karaganda, Kazakhstan
Sergey Mirgorodskiy D.Serikbayev East Kazakhstan State University, Department of mechanical engineering, Ust-Kamenogorsk, Kazakhstan
Aigerim Izotova Karaganda Technical University, Mechanical Engineering faculty, Department of Foreign Languages, Karaganda city, Kazakhstan
Aizhan Taskarina Toraigyrov University, Mechanical Engineering faculty, Department of Metallurgy, Pavlodar city, Kazakhstan
Assylkhan Mazdubay Toraigyrov University, Mechanical Engineering faculty, Department of Metallurgy, Pavlodar city, Kazakhstan
Almat Sagitov Karaganda State Technical University, Department of Technological equipment, mechanical and standardization, Karaganda, Kazakhstan

DOI: https://doi.org/10.5937/jaes0-23523

Keywords: pipe fittings, stop valve, gate valve, conical friction cutter, hole milling, multi-pass welding

Abstract

This article deals with analysis of the production state of pipeline valves in the Republic of Kazakhstan (RK). As a result of the study, it was found that to ensure high reliability and complete environmental safety of the communications system of pipeline transport, it is necessary to improve the quality of manufacturing pipeline valves and other elements of the pipeline transport system by using new promising developments in the field of mechanical processing, assembly, welding, etc. The relevance of the study is the issues of the large valves manufacturing for pipelines. The design and classification of pipelines, pipe fittings, in particular, valves, have been investigated. It has been established that the most difficult and time consuming to manufacture among pipeline valves is the design of gate valves. The technology of manufacturing large-sized gate valves in the conditions of the Ust-Kamenogorsk reinforcement plant has been investigated and the issues of quality and accuracy assurance in the manufacture of a box assembly have been identified. The results of experimental studies of the milling process of a tapered surface have shown the possibility of using a friction cone cutter for machining holes with curvilinear surfaces of a semi-hull of a large-sized sliding gate valve.

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