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塑料焊接原理

靈科超聲波淺談超聲波塑料件的結構設計（一）

一、關于塑料件的結構
塑料件必须有一定的刚性及足够的壁厚，太薄的壁厚有一定的危险性，超声波焊接时是需要加压的，一般气压为2-6kgf/cm2 ，所以塑料件必须保证在加压情况下基本不变形。

1、一些罐狀或箱形塑料等，在其接觸焊頭的表面會引起共振而形成一些集中的能量聚集點，從而産生燒傷、穿孔的情況（如圖1所示），在設計時可以罐狀頂部時應考慮一下這些方面。

（1）加厚塑料件
（2）增加加強筋
（3）焊頭中間位置避空

2、尖角
如果一個注塑出來的零件出現應力非常集中的情況，比如尖角位，在超聲波的作用下會産生折裂、融化。這種情況可考慮在尖角位加R角。如圖2所示。

靈科超聲波致力于高性能的超聲波塑焊設備研發、制造，爲客戶供應珠海超聲波、中山超聲波焊接機、江门超声波塑焊机、宁波超音波设备清洗机等、根据厂家需求定制非标设备。靈科超聲波産品广泛用于各个领域：汽车塑料零件的超声波焊接，打印耗材塑料焊接，电子电讯超声波焊接，无纺布超声波焊接等。

靈科超聲波浅谈超声波塑料件的結構设计（二）

鎖緊螺柱和超聲波電極的新幾何形狀

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