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中文English

超聲波焊接原理

“超聲波焊接”時是摩擦生熱嗎？

在使用超聲波焊接機時，會發現模具或換能器會有微微發熱的現象，這是什麽原因呢？就比如在寒冷的天氣裏，手掌摩擦會産生熱感，摩擦速度越快溫度也越高，速度和介質摩擦産生的溫度成正比。

同样超聲波焊接機在进行工作时，塑料之间的振动摩擦会产生超过材料熔解点的温度，但超过材料熔点的温度不是自然发生的，而是经过一系列的作用引起材料温度上升。首先引起电源信号，将振动子与超声波换能器相结合的振动系统发出15000~20000次/秒的振动频率，用手触摸时，温度约为60~80℃(视超聲波焊接機的功率大小)，塑料熔点至少为120℃左右因此，需要装上能量扩大器即超声波专用模貝(HORN)，使温度扩大1~4倍(视塑料熔点与材料特点而定)

机器模具细节

然而在超聲波焊接機的下模设计时，为什么一般会设计成底端外径与内孔小路状？

這如同小時候玩水管，把出水端擠成小孔，水流就會變強並且噴的更遠，這就是擴大集束原理。此時，配合氣壓等動力裝置進行塑料熔接，超聲波熔接的基礎理論如此。

当然如何把超声波速率(頻率)与塑料材料(物质)，摩擦造成的温度(震幅)，导入塑胶産品，使之变成所需要的，这门大学问分成三类，即模具加工，模貝搭建方法与熔接生产加工标准设置。而这种技术性便是根据超声波熔接基础理论的特性震动与传输所作为设计理论。

靈科超聲波拥有90多台CNC加工设备，广泛运用在塑料、无纺布、包装、打印耗材、医疗、电子电器、汽车等多个领域。为客户供应珠海超声波、中山超聲波焊接機、江门超声波塑焊机、阳江超音波设备配件等、根据厂家需求定制非标设备。

“超声波焊接”调试时産品发生断裂和损坏该如何处理？

超聲波發生器與超聲波換能器的匹配設計

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