> For the complete documentation index, see [llms.txt](https://wiki.polymaker.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.polymaker.com/polymaker-wiki/polymaker-wiki-zh/ji-chu-zhi-shi/fun-3d-printing-facts/larger-nozzles-better-layer-adhesion.md).

# 更大的喷嘴 = 更好的层间粘附

在 3D 打印中使用更大的喷嘴，通常会因为挤出宽度增加和层更厚而带来更好的层间附着力。喷嘴直径更大时，会沉积出更宽的熔融材料条带，从而在相邻层之间形成更大的接触表面积。这个更大的接触面积有助于实现更好的结合，因为更多来自上一层的熔融材料会与前一层熔合，从而增强打印件的整体机械强度。与较大喷嘴相关的较厚层也意味着打印中的总层数更少，这会减少可能导致分层或层间剥离的潜在薄弱界面的累积数量。因此，使用较大喷嘴打印的部件往往表现出更好的层间强度，因为层与层之间发生附着失效的机会更少。

{% embed url="<https://www.youtube.com/shorts/l15j5UTmj_g>" %}


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