Material Analysis
9 views
POM melt temperature exceeding standard decomposition (formaldehyde release)
Problem Phenomenon
A pungent formaldehyde odor appears in the workshop, and the product surface shows splashing, silver streaks, and bubbles.
Cause Analysis
When POM melt temperature exceeds 230℃, thermal decomposition occurs, releasing formaldehyde gas; the higher the temperature, the faster the decomposition, and the gas leaves splash marks on the product surface and irritates the respiratory tract.
Solution
①Immediately reduce the melt temperature below 210℃; ②shorten the residence time; ③clean the barrel when decomposition is severe; ④strengthen workshop ventilation; ⑤write the temperature upper limit into the SOP as a safety rule.
Key Takeaway
POM melt temperature is a safety red line, not a quality preference.
Was this helpful?
0 people found this helpful
Thank you for your feedback!