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
Electrofusion welding
Extrusion welding
Standards and regulations for tests
Clamping pipe ends axially and cutting them to length square to the pipe axis
A pipe separation that is not square may lead to the fact that parts of the electrofusion coils are not covered by the pipe, which may cause excessive heat, uncontrolled formation of melting material and auto-ignition.[Friatec04].
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