Content
Fundamentals concerning plastics
Polyethylene
Welding of polyethylene
Welding temperature
Welding force
Welding times
Factors of influence on the welding quality
Welding methods for HD-PE components
Heating element butt welding
Preparatory work
Description of method
Alignment process
Heating-up
Relocating
Joining
Welding parameters polyethylene
Staff and equipment
Equipment
Preparatory work for welding
Preparatory work for welding
Controlling the welding seam
Ultrasonic testing of HD-PE-welding seams
Evaluation of fracture surface
Documentation
Sources of failure
Finishing work
Quality assurance for the heating element butt wel...
Standards and regulations for heating element butt...
Electrofusion welding
Extrusion welding
Standards and regulations for tests
During PE-welding processes, different failures may occur, which can be detected by means of ultrasonic non-destructive testing according to DVS 2203.
Incomplete fusion at the interior surface, exterior surface or in the cross section, displaced joints.
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