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BE-15 Pipes and Materials: Welding of Plastic Pipes

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1.	Content
2.	Fundamentals concerning plastics
3.	Definitions
4.	Classification of plastics
5.	Structure of plastics
6.	Structure of plastics
7.	Structure of plastics
8.	Chemical resistance of plastics
9.	Materials for plastic pipelines
10.	Polyethylene
11.	Basic information on the material Polyethylene (PE)
12.	Types of polyethylene
13.	Properties of polyethylene
14.	Welding of polyethylene
15.	Welding of polyethylene
16.	Welding of thermoplastics
17.	Welding temperature
18.	Influence of the welding temperature
19.	Influence of the welding temperature
20.	Influence of the welding temperature
21.	Condition range of polyethylene
22.	Sources of failure
23.	Welding force
24.	Influence of the welding force
25.	Influence of the welding force
26.	Influence of the welding force
27.	Welding times
28.	Influence of welding times
29.	Influence of welding times
30.	Influence of welding times
31.	Influence of welding times
32.	Influence of welding times
33.	Factors of influence on the welding quality
34.	Factors of influence on the welding quality
35.	Residual welding stresses
36.	Residual welding stresses
37.	Checklist for the verification of the welding quality
38.	Welding methods for HD-PE components
39.	Welding methods for HD-PE components
40.	Heating element butt welding
41.	Preparatory work
42.	Description of method
43.	Alignment process
44.	Heating-up
45.	Relocating
46.	Joining
47.	Welding parameters polyethylene
48.	Staff and equipment
49.	Equipment
50.	Preparatory work for welding
51.	Preparatory work for welding
52.	Controlling the welding seam
53.	Ultrasonic testing of HD-PE-welding seams
54.	Evaluation of fracture surface
55.	Documentation
56.	Sources of failure
57.	Finishing work
58.	Quality assurance for the heating element butt welding
59.	Standards and regulations for heating element butt welding
60.	Electrofusion welding
61.	Principle
62.	Welding parameters
63.	Working steps
64.	Working step 1
65.	Working step 3
66.	Working step 7
67.	Application areas
68.	Data recording
69.	Quality assurance measures during electrofusion welding
70.	Standards and regulations for electrofusion welding
71.	Comparison of welding methods
72.	Extrusion welding
73.	Definition
74.	Application areas
75.	Storage of material
76.	Preparatory work
77.	Procedure
78.	Welding additive
79.	Heating-up of joining layers
80.	Welding speed
81.	Joining procedure
82.	Cooling-off phase
83.	Quality assurance measures during extrusion welding
84.	Standards and regulations for extrusion welding
85.	Standards and regulations for tests
86.	Standards and regulations for tests

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