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設備技巧

超聲波焊接機氣密性效果不好是爲什麽？

超声波塑料焊接机在焊接産品的时候会出现焊接的産品不达标的问题，水密气密在测试时都没有达标，分析其原因时，发现産品结构设计合理，超声波塑料焊接机的功率也够了，到底是什么原因造成了超声波塑料焊接机焊接的産品无法达到气密水密的标准呢？

我们在焊接産品时会求效率求快，所以会忽略了一些基本的超声波塑料焊接机的焊接原理，影响超声波塑料焊接机焊接産品水密气密有以下几个原因：

一、超聲波塑料焊接機下降速度和緩沖太快

此一形成的速度，使動態壓力加上重力加速度將把超聲波導熔線壓扁，使導熔線無法發揮導熔的作用，形成假相熔接。

sample 2

二、産品的熔接时间过长

塑料産品因接收过长时间的热能，不仅使塑料材质熔化，而且会造成塑料组织焦化现象，产生砂孔，水或气即由此砂孔渗透而出，这就形成了水密气密不达标的现象。

总之：我们在焊接塑料産品时，如果焊接效果不达标，一方面可以从超声波塑料焊接机本身找原因，通过超声波塑料焊接机的参数和调节超声波模具来达到焊接目的，第二方面可以从産品的材质、産品结构、産品导熔线来找原因。

QQ图片20141114141946

超聲波焊接機的工作應用原理及特點

“超聲波塑料焊接機”日常維護的保養竅門

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