Injection Molding
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MP surface orange peel texture
Problem Phenomenon
MP product surface has orange-peel-like uneven texture, rough to the touch
Cause Analysis
mold temperature low <30°C, product surface rapidly cools and solidifies while the interior continues to shrink, causing surface unevenness; injection speed too low
Solution
1) raise mold temperature to 40-50°C to delay surface solidification; 2) appropriately increase injection speed; 3) increase holding pressure to reduce internal shrinkage
Key Takeaway
orange peel texture is caused by rapid cooling and solidification; raising mold temperature and holding are key
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