Testing of High-Density Polyethylene (HDPE) butt and electrofusion welds is crucial
to ensure the quality and integrity of the welded joints. Various tests and
inspections are performed to verify that the welds meet the required standards and
performance criteria. MechTest is Queensland’s leading Laboratory for destructive
testing of HDPE welds.
Visual Inspection
Visual inspection is the initial step to assess the external quality of the weld. It
involves examining the weld bead, alignment, and any visible defects such as
cracks, voids, or irregularities.
Dimensional Inspection
Dimensional checks ensure that the welded joint meets the specified size and
alignment requirements. Measurements are taken to confirm the correct pipe
alignment and the fusion zone's dimensions.
Destructive Testing
Destructive testing is carried out on a sample of the welded joint to assess its
mechanical properties.
Common Destructive testing are.
Electro Fusion Peel Test ISO 13954
The electrofusion peel test ISO 13954 is a specific mechanical test used to assess
the strength and integrity of electrofusion joints in high-density polyethylene
(HDPE) piping systems. This test is essential to ensure that the welded joints can
withstand the mechanical stresses and environmental conditions they may
encounter during their service life. The electrofusion peel test evaluates the
bonding strength between the electrofusion fitting and the HDPE pipe.
Analysis:
The results of the electrofusion peel test are analysed to determine the bonding
strength and fusion quality between the electrofusion fitting and the HDPE pipe
surface.
Butt Fusion Tensile Test ISO 13953
The butt fusion tensile test ISO 13953 is a mechanical test used to evaluate the
strength and integrity of the butt-fusion joints in High-Density Polyethylene (HDPE)
piping systems. This test assesses the joint's ability to withstand axial (tensile)
forces, which are important for determining the reliability and performance of the
welded joints. The results of the HDPE butt fusion tensile test are analysed to
determine the tensile strength of the joint. Tensile strength is the maximum stress
the joint can withstand while being pulled apart. Ductility is another mechanical
property assessed these measures its ability to undergo plastic deformation
without breaking. In the context of HDPE butt welds, ductility refers to the joint's
ability to deform and stretch before failure when subjected to tensile or other
mechanical forces. The ductility of an HDPE butt weld is an essential property to
ensure that the joint can withstand mechanical stresses and maintain its integrity
in various applications.
Tensile Testing of Butt Fusion Joints – 90-1200mm – ISO 13953
Peel Decohesion Testing of Electrofusion Joints – ≥90mm – ISO 13954
Decohesion Crush Testing of Electrofusion Couplers and Saddle Assemblies – 16-225mm – ISO 13955
Decohesion Testing of Electrofusion Saddle Joints and evaluation of ductility at the fusion interface – Any Size – ISO 13956
Decohesion Strip Bend Testing of Electrofusion Saddle and Coupler Assemblies for evaluation of joint interface – ISO 21751
Flexural Bend Testing of Polymers – BS/EN 12814-1
CONTACT US
There are number of ways you can contact MechTest Brisbane. Use any of the methods shown below or use our secure web form.
2/627 Boundary Road Archerfield QLD 4108
(07) 3277 0100
info@mechtest.com.au
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20625185417
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