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U
<p>干货满满，已经转发给同事了。</p>
M
<p>作为刚入行两年的新人，这类技术总结真的太需要了。</p>
<p>推板推出确实不留顶针痕，我们做外观件模具时优先考虑推板结构，不过模具成本会高一些。</p>
<p>技术干货好文。锥形精定位配合锥度一般建议8°以内，超过10°自锁力会大幅下降。</p>
<p>工程塑料选型这块，实际生产中还要考虑材料的收缩率和成型周期，建议结合Moldflow做前期验证。</p>