Production & Quality
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DSTDP surface microcracks
Problem Phenomenon
DSTDP product surface shows 0.05-0.2mm microcracks, affecting appearance and strength
Cause Analysis
DSTDP product internal stress too large, exceeding the material yield stress; environmental stress cracking; product design stress concentration
Solution
1) Annealing treatment to release internal stress; 2) product design to avoid sharp corners and stress concentration; 3) select high molecular weight DSTDP to improve crack resistance
Key Takeaway
Microcracks are caused by excessive internal stress; annealing and crack-resistant design are key
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