OM-4417 Page 43
12-13. Weld Test
S-0057-B
1
Vise
2
Weld Joint
3
Hammer
Strike weld joint in direction shown.
A good weld bends over but does
not break.
2 To 3 in
1/4 in
3
2
1
2 To 3 in
3
2
1
(51-76 mm)
(6.4 mm)
(51-76 mm)
12-14. Troubleshooting
−
Porosity
Porosity
−
small cavities or holes resulting from gas
pockets in weld metal.
Possible Causes
Corrective Actions
Arc length too long.
Reduce arc length.
Damp electrode.
Use dry electrode.
Workpiece dirty.
Remove all grease, oil, moisture, rust, paint, coatings, slag, and dirt from work surface before
welding.
12-15. Troubleshooting
−
Excessive Spatter
Excessive Spatter
−
scattering of molten metal particles
that cool to solid form near weld bead.
Possible Causes
Corrective Actions
Amperage too high for electrode.
Decrease amperage or select larger electrode.
Arc length too long or voltage too high.
Reduce arc length or voltage.
Содержание Blue Star 145
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Страница 24: ...OM 4417 Page 20 6 3 Controls DX Models See Section 6 4 803 596 A 803 595 A 218 610 1 8 7 3 5 4 6 2 ...
Страница 33: ...OM 4417 Page 29 SECTION 10 ELECTRICAL DIAGRAMS 226 737 A Figure 10 1 Circuit Diagram For Standard Models ...
Страница 34: ...OM 4417 Page 30 226 738 A Figure 10 2 Circuit Diagram for DX Models ...
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