Technical training
Basic Technical Training / V8 2023-05-02
The aim of this lesson is to give participants an understanding of bolted and welded connections and their inspection.
ELEMENT 4.1 - THE PRINCIPLES OF BOLTED CONNECTIONS
Learning objective:
35) The participants can discuss the principles of bolted connections (Knowledge, intermediate level).
The instructor shall:
Explain how to identify different types of bolts according to:
a.
Dimensions
b.
Threat type
c. Material and treatments (hot dip galvanized, electroplated, stainless steel, pre-lubricated…)
d.
Quality
e. Explain how bolt strength is proportional to the size of the bolt and dependent on material and quality
Explain the function of and types of washers
Explain the importance of bolt thread lubrication
Explain the importance of the same temperature for all set components
Define and explain torque and tension
Explain the principles of angular tightening
Show the importance of correct tightening (e.g. collapsing towers, electrical fires)
Facilitate group discussions on:
a. Bolts, threads, lubricants, strengths of materials and temperature influences
b.
Force and torque
Give constructive feedback on the participant groups’ discussions about bolted connections
The participants shall:
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