2021 Amsterdam : INVESTIGATION OF THE QUALITY CHARACTERISTICS OF POLYAMIDE 12 PIPE WELDS
Author(s) : M. Eckes & Dr. B. Baudrit, Dr. M. Troughton & D. Wylie, H. van Laak & J. Fritz
Unplasticized polyamide 12 (PA-U12) is increasingly being used in pipe applications,
especially in the gas sector. However, the material behavior in the usual quality tests for
pipe welds has not yet been thoroughly investigated.
For this reason, two research institutes, worked in cooperation with a manufacturer
2016 Berlin : Development of flaw acceptance criteria for welded joints in PE pipes
Author(s) : Mike Troughton, Amir Khamsehnezhad
the inspection of butt fusion and electrofusion joints in polyethylene (PE) pipes. Depending on the technique and inspection procedure, various types of flaw, including discrete planar lack of fusion, particulate contamination, voids, cold fusions and pipe under-penetration can be detected. However, the usefulness of...
2001 Munich : Welding with Integrated Non-Destructive Examination of PE Pipes
Author(s) : Troughton
This paper describes the development of an ultrasonic non-destructive examination (NDE)
system that is incorporated into an automatic butt fusion welding machine and performs an
examination of the joint within the cooling time of the welding cycle. The programme of
work included the optimisation of the ultrasonic NDE...
1998 Gothenburg : Comparison of Short-Term Coupon Test
Author(s) : Hinchcliff, Troughton
There are a number of different mechanical test methods available to assess the quality of butt
fusion welded joints in polyethylene (PE) pipes. However, little published information exists
on the correlations that may or may not exist between the results from these methods.
This paper compares the results from five...
1998 Gothenburg : Linear Vibration Welding of PE Pipes - 1998
Author(s) : Nomura, Hirabayashi, Troughton
This paper describes an assessment of the quality of butt and branch joints in polyethylene (PE) pipes, produced using the linear vibration welding technique. Results showed that butt welds in pipes of 165 mm outside diameter(0D) could be produced within a total weld/cool time of 85 seconds, which is less than 15?'0...
1995 Edinburgh : High productivity butt fusion jointing of PE pipes
Author(s) : Cartwright, Troughton, Hinchcliff, Bowman, Jenkins
For the butt fusion joining of PE80 polyethylene pipes on site, long heat soak and
cooling times predominate in the United Kingdom and other countries. The
literature is reviewed to propose that these heat soak and cooling times can be
significantly reduced via the use of machines with verifiable, reduced short...