Výsledky vyhledávání - "Feng Zhenjun"

Akademický článek

Analysis of Leakage Cause of L415M Spiral Submerged Arc Welding Pipe

Autor: Xu Yan, Liu Yinglai, Nie Xianghui, Feng Zhenjun, Li Liang, Yang Fengping

Publikováno v: E3S Web of Conferences, Vol 329, p 01071 (2021)

The causes of longitudinal crack in gas pipeline during pressure were analyzed by means of mechanical property test, microstructure analysis, sem analysis and energy spectrum analysis. The results show that the leakage of L415M spiral submerged arc w

Externí odkaz: https://doaj.org/article/8b8b0dc4e46347179e4cc3703ae93579

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Akademický článek

Research on Preheating Temperature Field Test of Natural Gas Pipeline in Service Welding under Extreme Condition

Autor: Xu Yan, Liu Yinglai, Feng Zhenjun, Nie Xianghui, Zhang Chao, Jasmine

Publikováno v: MATEC Web of Conferences, Vol 353, p 01001 (2021)

When the natural gas pipeline is welding in service, the fast flowing medium with pressure in the pipe will take away a lot of heat, and the preheating temperature is not easy to be guaranteed, so it is easy to appear hydrogen-induced crack. In this

Externí odkaz: https://doaj.org/article/9f6535bb0b184b59b567df03083471b9

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Akademický článek

Research on the influence of heat treatment temperature on bearing capacity of high steel grade pipeline during in-service welding

Autor: Xu Yan, Liu Yinglai, Nie Xianghui, Feng Zhenjun, Li Liang, Yang Fengping, Jasmine

Publikováno v: MATEC Web of Conferences, Vol 353, p 01020 (2021)

During the welding of in-service pipeline, natural gas is continuously transported in the pipeline, which maintains a high gas pressure. Therefore, the welding process is completed under strong cooling conditions, and welding delay crack is easy to o

Externí odkaz: https://doaj.org/article/aa5e269336e44234a466977b0be2948e

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