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Simulation of Temperature Field in HDPE Pipe Thermal Welding(PDF)

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

Issue:
2017年02期
Page:
18-22
Research Field:
材料科学与工程
Publishing date:

Info

Title:
Simulation of Temperature Field in HDPE Pipe Thermal Welding
Author(s):
LIU Li-juu.HANG Tiny--tin}-DAI HouR--bin
(School of Material Science and L,n}ineerin}, 日arhin I」 nicersitv of Seienee and’fechnolo}y, llarbin 150040,China)
Keywords:
Keywords:high density polyethylene pipethermai melt weldingtemperature fieldstress field
PACS:
-
DOI:
10.15938/j.jhust.2017.02.004
Abstract:
Abstract:For high density polyethylene pipe connection,welding technology is the key of the high density engineering plastic pressure pipe safety. And the temperature distribution in the welding process has a very important influence on the welding quality. Polyethylene pipe weld joints of one dimensional unsteady overall heat transfer model is established by MARC software and simulates temperature field and stress field distribution of the welding process,and the thermocouple temperature automatic acquisition system of welding temperature field changes were detected,and compared by simulation and experiment .The results show that,at the end of the heating,the temperature of the pipe does not reach the maximum,but reached the maximum at 300 s,which indicates that the latent heat of phase change in the process of pressure welding. In the process of pressure welding, the axial stress of the pipe is gradually changed from tensile stress to compressive stress.

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Last Update: 2017-06-12