DEFECT WELD
NON VISUAL
BLOW HOLE
Blow Hole
Because :
1. ELEKTRODA UP DOWN
2. GAP NO CONSISTENT
3. AMPERE ROOT SWING
Result :
Started erosion abrasion.
Countermeasures :
1. Gouging until roots in the location of a defect in the welds and appropriate contents WPS REPAIR.
Rejected Criteria
API 1104 : For the use of normal or SEVERE CYCLIC must repair, if not , it’s reject. In the d is still could be accepted as long as :
1. INDIVIDUAL ≤ 1/4 “ or thick plate .
2. If the number of long in 12” lasan < ½ “.
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