NDLI: Improvement of butt-welding characteristics of double wall polyethylene pipes

Content Provider	Springer Nature Link
Author	Lee, Bo Young Kim, Yeong K. Hwnag, Woong Gi Kim, Jae Seong Lee, Sang Yul
Copyright Year	2012
Abstract	In this study, a new heat plate with a groove for butt-welding was developed to investigate the misalignment effects on the joining strengths of polyethylene double walled pipes. Thermal analyses of the material determined the temperature profile of the welding. After the welding, the joining characteristics of the pipes were compared with those welded by the conventional heat plate. The results of the stiffness and flattening tests showed that there were no big differences between the joints made from these two plates. In the leakage test, however, the pipes welded with the conventional heat plate leaked below the required test conditions, while the pipes welded with the grooved heat plate did not show any leakage, even in a range higher than the required conditions. The tensile and bending strength were also improved. The results demonstrated that the grooved heat plate accomplished more complete fusion at the pipe joints and induced high quality joints.
Starting Page	851
Ending Page	856
Page Count	6
File Format	PDF
ISSN	15989623
Journal	Metals and Materials
Volume Number	18
Issue Number	5
e-ISSN	20054149
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-10-10
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	joining fiber strength stiffness thermal analysis Metallic Materials Operating Procedures, Materials Treatment Magnetism, Magnetic Materials Engineering Thermodynamics, Heat and Mass Transfer Characterization and Evaluation of Materials Continuum Mechanics and Mechanics of Materials
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Mechanics of Materials Metals and Alloys Condensed Matter Physics

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