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Type of Defect: |
Silver streak (2/2) |
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Description: |
White (or silver) streak running on the surface of the substrate along the flow of material |
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Observation Method: |
Visible by the human eye / silvery scratch-like or hair-like streaks |
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Recommendation Upon Observation: |
Better visibility under polarized light |
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Other Evaluation Method: |
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Cause |
Countermeasure |
| Material degradation caused by overheating |
Adjust cylinder temperature (too high) |
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Material degradation caused by overheating |
Adjust nozzle temperature (too high) |
| Material degradation caused by overheating |
Check cylinder temperature equipment |
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Material degradation caused by overheating |
Check the nozzle temperature controller |
