強度無法達到欲求標準。當然我們必須了解超聲波焊接機作業的強度絕不可能達到一體成型的強度，只能說接近于一體成型的強度，而其熔接強度的要求標準必須仰賴于多項的配合，這些配合是什么呢？※塑料材質：ABS與ABS相互相熔接的結果肯定比 ABS與PC相互熔 接的強度來的強，因為兩種不同的材質其熔點也不會相同，當然熔接的強度也不可能相同，雖然我們探討ABS與PC這兩種材質可否相互熔接？我們的答案是絕對可以熔接，但是否熔接后的強度就是我們所要的？那就不一定了！而從另一方面思考假使ABS與耐隆、PP、PE相熔的情形又如何呢？如果超音波HORN瞬間發出150度的熱能，雖然ABS材質己經熔化，但是耐隆、PVC、PP、PE只是軟化而已。我們繼續加溫到270度以上，此時耐隆、PVC、PP、PE已 經可達于超音波熔接溫度，但ABS材質已解析為另外分子結構了！
The intensity is not up to the desired standard. Of course, we must understand that the strength of the ultrasonic welding machine operation can never reach the strength of the integrated forming, which can only be said to be close to the strength of the integrated forming, and the required standard of its welding strength must depend on a number of fits. What are these fits? * plastic material: the result of ABS and ABS mutual fusion is certainly stronger than that of ABS and PC mutual fusion, because the melting point of two different materials will not be the same, of course, the strength of fusion is not the same, although we discuss whether ABS and PC can be mutually fused? Our answer is that welding is absolutely possible, but is the strength after welding what we want? Then not necessarily! On the other hand, what if ABS is fused with nylon, PP and PE? If the ultrasonic horn emits heat energy of 150 degrees in an instant, although ABS material has been melted, nylon, PVC, PP and PE are just softened. We continue to heat it to more than 270 ℃, at this time, nylon, PVC, PP, PE have reached the temperature of ultrasonic fusion, but the ABS material has been resolved into another molecular structure!
由以上論述即可歸納出結論：
相同熔點的塑料材質熔接強度愈強。
塑料材質熔點差距愈大，熔接強度愈小。
.塑料材質的密度愈高（硬質）會比密度愈低（韌性高）的熔接強度高。
制品表面產生傷痕或裂痕。在超音波熔接作業中，產品表面產生傷痕、結合處斷裂或有裂痕是常見的。
因為在超音波作業中會產生兩種情形：
高熱能直接接觸塑料產品表面
From the above discussion, we can conclude:
The stronger the fusion strength of plastic material with the same melting point.
The larger the melting point difference is, the smaller the welding strength is.
The higher the density (hard) of the plastic material, the higher the welding strength of the plastic material.
There are scars or cracks on the surface of products. In ultrasonic welding operation, it is common that there are scars on the surface of the product, cracks at the joint or cracks.
Because there are two situations in ultrasonic operation:
High heat energy direct contact with plastic product surface
振動傳導 。
所以超音波發振作用于塑料產品時，產品表面就容易發生燙傷，而1m/m以內肉厚較薄之塑料柱或孔，也極易產生破裂現象，這是超音波作業先決現象是無可避免的。而在另一方面，有因超音波輸出能量的不足(分機臺與HORN上模)，在振動摩擦能量轉換為熱能時需要用長時間來熔接，以累積熱能來彌補輸出功率的不 足。此種熔接方式，不是在瞬間達到的振動摩擦熱能，而需靠熔接時間來累積熱能，期使塑料產品之熔點到達成為熔接效果，如此將造成熱能停留在產品表面過久， 而所累積的溫度與壓力也將造成產品的燙傷、震斷或破裂。是以此時必須考慮功率輸出(段數)、熔接時間、動態壓力等配合因素，來克服此種作業缺失。
Vibration conduction.
Therefore, when ultrasonic vibration is applied to plastic products, the surface of the products is easy to be scalded, and the plastic columns or holes with thinner meat thickness within 1 m / M are also prone to crack, which is the inevitable prerequisite for ultrasonic operation. On the other hand, due to the lack of ultrasonic output energy (extension and horn upper mode), it needs a long time to weld when the vibration friction energy is converted into heat energy, so as to accumulate heat energy to make up for the lack of output power. This welding method is not the vibration friction heat energy achieved in an instant, but needs to accumulate heat energy by the welding time, so as to make the melting point of the plastic product reach the fusion effect, which will cause the heat energy to stay on the product surface for too long, and the accumulated temperature and pressure will also cause scalding, breaking or cracking of the product. At this time, power output (number of sections), welding time, dynamic pressure and other factors must be considered to overcome the lack of this operation.
