Deformation control during the welding of AP1000 main pump casing and steam generator

The welding of the AP1000 Reactor Coolant Pump (RCP) casing and Steam Generator (SG) is an important issue to maintain the integrity of pressure boundary. The position tolerance of pump casing nozzles after welding will directly affect the internal components of the main pump, as well as the on-site...

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Main Authors: Guang-qing He, Zhen-guo Yang, Bin Xi, You-peng Zhang, Disi Wang, Bo Liu, Song Li
Format: Article
Language:English
Published: Elsevier 2021-12-01
Series:Nuclear Materials and Energy
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2352179121001563
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author Guang-qing He
Zhen-guo Yang
Bin Xi
You-peng Zhang
Disi Wang
Bo Liu
Song Li
author_facet Guang-qing He
Zhen-guo Yang
Bin Xi
You-peng Zhang
Disi Wang
Bo Liu
Song Li
author_sort Guang-qing He
collection DOAJ
description The welding of the AP1000 Reactor Coolant Pump (RCP) casing and Steam Generator (SG) is an important issue to maintain the integrity of pressure boundary. The position tolerance of pump casing nozzles after welding will directly affect the internal components of the main pump, as well as the on-site assembling processes. This article investigated the method of controlling deformations during welding (such as assembly alignment, groove design, welding process control, etc), in order to prevent excessive welding deformation and therefore extra discrepancies during pump casing positioning. In this paper, we have developed a welding process, which can allow the installations of AP1000 pump casings to meet all nuclear grade requirements.
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spelling doaj.art-748ac287468b4b219913d468f5423ae42022-12-21T18:43:34ZengElsevierNuclear Materials and Energy2352-17912021-12-0129101090Deformation control during the welding of AP1000 main pump casing and steam generatorGuang-qing He0Zhen-guo Yang1Bin Xi2You-peng Zhang3Disi Wang4Bo Liu5Song Li6Department of Materials Science, Fudan University, Shanghai, China; Shanghai Electric Nuclear Power Equipment Co., Ltd., Shanghai 201306, ChinaDepartment of Materials Science, Fudan University, Shanghai, China; Corresponding authors.Institute of Modern Physics, Fudan University, Shanghai 200433, ChinaInstitute of Modern Physics, Fudan University, Shanghai 200433, China; Corresponding authors.Institute of Modern Physics, Fudan University, Shanghai 200433, ChinaInstitute of Modern Physics, Fudan University, Shanghai 200433, ChinaInstitute of Modern Physics, Fudan University, Shanghai 200433, ChinaThe welding of the AP1000 Reactor Coolant Pump (RCP) casing and Steam Generator (SG) is an important issue to maintain the integrity of pressure boundary. The position tolerance of pump casing nozzles after welding will directly affect the internal components of the main pump, as well as the on-site assembling processes. This article investigated the method of controlling deformations during welding (such as assembly alignment, groove design, welding process control, etc), in order to prevent excessive welding deformation and therefore extra discrepancies during pump casing positioning. In this paper, we have developed a welding process, which can allow the installations of AP1000 pump casings to meet all nuclear grade requirements.http://www.sciencedirect.com/science/article/pii/S2352179121001563AP1000Main pump casingWelding deformation control
spellingShingle Guang-qing He
Zhen-guo Yang
Bin Xi
You-peng Zhang
Disi Wang
Bo Liu
Song Li
Deformation control during the welding of AP1000 main pump casing and steam generator
Nuclear Materials and Energy
AP1000
Main pump casing
Welding deformation control
title Deformation control during the welding of AP1000 main pump casing and steam generator
title_full Deformation control during the welding of AP1000 main pump casing and steam generator
title_fullStr Deformation control during the welding of AP1000 main pump casing and steam generator
title_full_unstemmed Deformation control during the welding of AP1000 main pump casing and steam generator
title_short Deformation control during the welding of AP1000 main pump casing and steam generator
title_sort deformation control during the welding of ap1000 main pump casing and steam generator
topic AP1000
Main pump casing
Welding deformation control
url http://www.sciencedirect.com/science/article/pii/S2352179121001563
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AT youpengzhang deformationcontrolduringtheweldingofap1000mainpumpcasingandsteamgenerator
AT disiwang deformationcontrolduringtheweldingofap1000mainpumpcasingandsteamgenerator
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