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Type of Defect: |
Brown Streak |
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Description: |
Streak of Brown Discolored PC caused by degradation |
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Observation Method: |
Visible by the human eye |
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Recommendation Upon Observation: |
Better visibility under UV light (for burnt PC) |
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Other Evaluation Method: |
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Cause |
Countermeasure |
| Material degradation caused by local (or general) overheated cylinder |
Adjust cylinder temperature (too high) |
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Material degradation caused by local (or general) overheated cylinder |
Adjust nozzle temperature (too high) |
| Material degradation due to burning PC caused by hang-up in cylinder or nozzle |
Remove nozzle and clean |
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Material degradation due to burning PC caused by hang-up in cylinder or nozzle |
Remove screw and clean. |
