Material Analysis
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ABS melt temperature 230-270
Problem Phenomenon
ABS melt temperature 230-270°C; degradation above 280°C; grade difference management.
Cause Analysis
ABS melt temperature 230-270°C; upper limit for high heat-resistant grades; exceeding 280°C causes thermal decomposition releasing harmful gases and producing black specks; temperature gradient; actual measurement verification; grade differences.
Solution
①Melt 230-270°C control; ②upper limit for high heat-resistant grades; ③strictly prohibit exceeding 280°C; ④temperature gradient management; ⑤actual measurement verification.; after adjustment, continuously sample to verify the effect, and resume mass production only after confirming stability
Key Takeaway
The 280°C red line of ABS melt temperature is both safety and quality; grade differences must be confirmed; actual measurement prevents display errors.; after confirming effectiveness, fix the parameters and practices into the work instruction to prevent recurrence
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