What Steel Is The Best For Ultrasonic Molds？

Ultrasonic mold is an indispensable part of ultrasonic welding equipment, but many people are not very familiar with ultrasonic mold. So, what material is used for ultrasonic molds?
The materials used for ultrasonic molds include aluminum alloy, mold steel, and titanium alloy. Ultrasonic molds made from different materials are suitable for different occasions and have different advantages.
1. Aluminum alloy ultrasonic mold:
Advantages: Light weight, low density; High ultrasonic transmission rate, suitable for large-scale mold production; The hardness is not high, and complex patterns can be carved on the mold, resulting in relatively low processing costs. The disadvantage is that it has low wear resistance and is prone to wear.
2. Steel formwork:
Advantages: High hardness, high wear resistance, strongest mold usage time, and high stability. The disadvantage is that the ultrasonic transmission rate is relatively low and the acoustic impedance is high. In order to ensure the ultrasonic transmission effect, it is not suitable for large-scale molds. For circular molds, the unit diameter generally cannot exceed 11.5cm.
3. Titanium alloy ultrasonic mold:
The advantages are high hardness, good wear resistance, fast heat dissipation, light weight, and low density. When using ultrasonic waves of the same power, the ultrasonic transmission rate of the same volume mold is higher than that of the steel mold. Its disadvantage is that the cost is relatively high, and the price of titanium molds is much higher than that of aluminum molds and steel molds of the same specification (currently, the price of titanium based molds exceeds 500 yuan/kg).
Ultrasonic mold is used together with ultrasonic plastic welding machine to weld plastic products. Ultrasonic plastic welding machines have different welding sizes and specifications due to different application occasions and welding materials.