|Table of Contents|

The Influence of Reinforcing Type on Welding Distortion of
Steam Turbine Diaahraams Shel!
(PDF)

《哈尔滨理工大学学报》[ISSN:1007-2683/CN:23-1404/N]

Issue:
2015年03期
Page:
56-060
Research Field:
材料科学与工程
Publishing date:

Info

Title:
The Influence of Reinforcing Type on Welding Distortion of
Steam Turbine Diaahraams Shel!
Author(s):
LI Jun一YI SUN Feng-liarLI U YangHU Xiao一lei
(School of Material Science and En}ineerin},Harbin University of Science and Technolony,Harbin 150040,China
Keywords:
:turbine diaphragms shellwelding distortionnumerical simulationsimilarity theory
PACS:
TB34
DOI:
-
Abstract:
To solve the problem of large welding distortion which leads to the low assembly accuracy and thehigh cost physical test. Numerical simulation is used to study how the reinforcing controls the welding distortion bybuilding the finite element model based on the similarity theory of welding temperature field. Two types of reinforcing are designed and contrasted the ability to control welding distortion. Through the simulation results,the distortion rules in three directions of diaphragms shell are known. The three directions are axial direction,radial direction and circumference direction. The conclusion is that the ability to control welding distortion of type A is betterthan type B’s and the welding distortion of excircle is larger than incircle’s in three directions.

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Last Update: 2015-08-24