Small series in the previous article for you to introduce new and old welding technology and the most basic knowledge. But for the majority of the actual chemical production of the user, how to find and identify some defects in the welding, and targeted prevention is the most valuable content. Therefore, we introduced the current “ picture + text ” practical content.
Welding knowledge
Graphic with you to understand the welding defects

Defect Name: stomata (Blow Hole)



Typical defects


Defect Name: undercut (Undercut)


Typical defects



Defect Name: slag (Slag Inclusion)



Typical defects

Defect Name: Penetration (Incomplete)


Typical defects

Defect Name: crack (Crack)



Typical defects



Defect Name: deformation (Distortion)


Other defects





Typical defects
Welding penetration


Lap lap

- bead - Snake

Process equipment network release, please indicate the source.

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