<ol>
<li>Warping — uneven cooling → balance mold temperature</li>
<li>Sink marks — insufficient packing → increase hold pressure/time</li>
<li>Flash — low clamp force or mold fit → increase tonnage or repair parting line</li>
<li>Short shot — low injection speed or material temp → increase both</li>
<li>Weld lines — cold melt front → increase mold temp and injection speed</li>
</ol>

<p>Full guide: https://www.mfgabc.com/guides/injection-molding-defects-guide.html</p>

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<p>你在实际生产中遇到过类似问题吗？欢迎留言讨论。</p>