How to solve the problem of spill cape or fur edge after ultrasonic welding?

The causes of product spills or edges after ultrasonic welding are as follows:

1）.超声波功率太强.

1) The ultrasonic power is too strong.

2）.超声波熔接时间太长.

2. The ultrasonic welding time is too long.

3）.空气压力（动态）太大.

3. The air pressure (dynamic) is too large.

4）.上模下压力(静态)太大.

4. The pressure under the upper die (static) is too large.

5）.上模(HORN)能量扩大比率太大.

5. The energy expansion ratio of the upper mode (horn) is too large.

6）.塑料制品导熔线太外侧或太高或粗.

6. Plastic product fuse wire is too outside or too high or too thick.

上述六项为造成超音波熔接作业后产品发生溢料毛边的原因，然而其中最关键性的是在第六项超音波的导熔线开设，一般在超音波熔接作业中，空气压力大约在 2~4kg范围，根据经验值最佳的超音波导熔线，是在底部0.4~0.6m/m times;高度0.3~0.4m/m 如：此型Delta;，尖角约呈60度，超出这个数值将导至超声波熔接时间、压力、机台或上模功率的升高，如此就形成上述1~6项造成溢料与毛边的原因。

     The six factors mentioned above are the causes of overflow edge after ultrasonic welding operation. However, the most critical one is the opening of the sixth ultrasonic fuse line. Generally, in ultrasonic welding operation, the air pressure is in the range of 2-4 kg. According to the empirical value, the best supersonic waveguide fuse line is in the bottom of 0.4-0.6 m/times. If the height is 0.3-0.4m/m, such as Delta, the sharp angle is about 60 degrees, which will lead to the increase of ultrasonic welding time, pressure, power of machine or upper horn, thus forming the causes of spills and edges mentioned above 1-6 items.

解決方法：

Solutions:

1.降低压力、减少超声波熔接时间（降低强度标准）。

1. Reduce pressure and time of ultrasonic welding (reduce strength standard).

2.减少机台功率段数或小功率机台。

2. Reduce the number of power segments or low-power machines.

3.降低超声波模具放大比。

3. Reduce the amplification ratio of the ultrasonic mould.

4.使用超声波机台微调定位固定。

4. Fine-tuning positioning and fixing with ultrasonic machine.

5.修改超声波导熔线。

5. Modify the ultrasonic fuse guide.