We are stainless steel wire manufacturer, so we learn more about steel wires. Here I will tell you 10 characteristics of shape defects of submerged arc welded joints.
1. No penetration
The lack of penetration means that the root of the welded joint is not completely penetrated.
2. Not fused
The part of combination is not melted completely between the base metal or between the weld, during welding.
3. Slagging
After welding residual slag in the weld slag.
4. Inclusions
As a result of welding metallurgical reaction, after welding residual metal in the weld metal inclusions for the non-metallic inclusions.
5. Undercut
Due to welding parameters and process is not accurate, along the toe of the base metal parts of the groove or depression is called undercut.
6. Welding tumor
Welding process, the molten metal flowing to the weld is not melted on the base metal is formed on the welding tumor.
7. Burn through
Welding process, the molten metal from the back of the groove out of the formation of perforation defects.
8. Dent
After welding in the weld surface or the back of the weld surface to form a lower part of the surface of the base metal parts.
9. Not soldered
Due to lack of filler metal in the weld surface to form a continuous or intermittent groove.
10. Collapse
Single-sided fusion welding, due to improper welding process, resulting in excessive weld metal through the back, so that the weld appears to collapse, the phenomenon of the back of the raised.
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