強(qiáng)度無法達(dá)到欲求標(biāo)準(zhǔn)。當(dāng)然我們必須了解超聲波焊接機(jī)作業(yè)的強(qiáng)度絕不可能達(dá)到一體成型的強(qiáng)度，只能說接近于一體成型的強(qiáng)度，而其熔接強(qiáng)度的要求標(biāo)準(zhǔn)必須仰賴于多項(xiàng)的配合，這些配合是什么呢？※塑料材質(zhì)：ABS與ABS相互相熔接的結(jié)果肯定比 ABS與PC相互熔 接的強(qiáng)度來的強(qiáng)，因?yàn)閮煞N不同的材質(zhì)其熔點(diǎn)也不會(huì)相同，當(dāng)然熔接的強(qiáng)度也不可能相同，雖然我們探討ABS與PC這兩種材質(zhì)可否相互熔接？我們的答案是絕對(duì)可以熔接，但是否熔接后的強(qiáng)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(fā)出150度的熱能，雖然ABS材質(zhì)己經(jīng)熔化，但是耐隆、PVC、PP、PE只是軟化而已。我們繼續(xù)加溫到270度以上，此時(shí)耐隆、PVC、PP、PE已 經(jīng)可達(dá)于超音波熔接溫度，但ABS材質(zhì)已解析為另外分子結(jié)構(gòu)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(jié)論：
相同熔點(diǎn)的塑料材質(zhì)熔接強(qiáng)度愈強(qiáng)。
塑料材質(zhì)熔點(diǎn)差距愈大，熔接強(qiáng)度愈小。
.塑料材質(zhì)的密度愈高（硬質(zhì)）會(huì)比密度愈低（韌性高）的熔接強(qiáng)度高。
制品表面產(chǎn)生傷痕或裂痕。在超音波熔接作業(yè)中，產(chǎn)品表面產(chǎn)生傷痕、結(jié)合處斷裂或有裂痕是常見的。
因?yàn)樵诔舨ㄗ鳂I(yè)中會(huì)產(chǎn)生兩種情形：
高熱能直接接觸塑料產(chǎn)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(dòng)傳導(dǎo) 。
所以超音波發(fā)振作用于塑料產(chǎn)品時(shí)，產(chǎn)品表面就容易發(fā)生燙傷，而1m/m以內(nèi)肉厚較薄之塑料柱或孔，也極易產(chǎn)生破裂現(xiàn)象，這是超音波作業(yè)先決現(xiàn)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(jī)臺(tái)與HORN上模)，在振動(dòng)摩擦能量轉(zhuǎn)換為熱能時(shí)需要用長(zhǎng)時(shí)間來熔接，以累積熱能來彌補(bǔ)輸出功率的不 足。此種熔接方式，不是在瞬間達(dá)到的振動(dòng)摩擦熱能，而需靠熔接時(shí)間來累積熱能，期使塑料產(chǎn)品之熔點(diǎn)到達(dá)成為熔接效果，如此將造成熱能停留在產(chǎn)品表面過久， 而所累積的溫度與壓力也將造成產(chǎn)品的燙傷、震斷或破裂。是以此時(shí)必須考慮功率輸出(段數(shù))、熔接時(shí)間、動(dòng)態(tài)壓力等配合因素，來克服此種作業(yè)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.
