Ultrasonic Metal Atomization Device

Introduction:

Ultrasonic nozzles are highly suitable for applications that require very precise diameter dimensions, such as solder powders commonly used in the manufacture of solder paste. For a long time, ultrasonic nozzles have been an ideal tool for atomizing molten metals and melts (such as solder). However, temperature limitations and wear on the nozzle atomization surface make them impractical in production environments. These issues have been overcome through the use of dual air/liquid cooling and a simple, replaceable atomizing surface design. This proprietary cooling method can keep the thermosensitive piezoelectric sensor of the nozzle within a safe temperature range even when atomizing molten liquid. For corrosive liquids, the nozzle made of titanium alloy material completely overcomes this problem.

Principle:

The principle of ultrasonic metal milling equipment is that the ultrasonic driving power supply is connected to the ultrasonic transducer set inside the housing through a cable. The transducer converts the high-frequency sound waves generated by the driving power supply into high-frequency mechanical energy and works to perform longitudinal high-frequency vibration. The frequency of high-frequency vibration is equivalent to the frequency of the AC current of the driving power supply. The vibration output end of the transducer is connected to the amplitude rod, and this longitudinal upward and downward vibration is transmitted from the amplitude rod to the atomization surface, generating standing waves. The lifting function of the amplitude rod is to amplify the output amplitude of the transducer to the desired level.

When the molten metal liquid passes through the atomization surface, it is broken into uniform micrometer sized droplets and mist, achieving atomization. Under the action of rotational centrifugal force and standing waves on the atomization surface, the atomized micrometer sized droplets are thrown out of the atomization surface and rapidly solidified upon cooling with air, forming micrometer sized metal solid particles. These particles that fall into the powder collection cylinder are collected to prepare the required metal powder. Moreover, during the ultrasonic atomization process, the size of the fine mist of micrometer sized droplets can be accurately controlled, thereby accurately controlling the size of the metal powder.

Advantages:

1. The prepared powder has the advantages of high purity, low oxygen content, good sphericity, and uniform particle size distribution.

2. The equipment and process are simple, the operation is convenient, and the product quality is stable and controllable.

3. Significant advantages include low energy consumption, high utilization rate, and low cost.

4. Ultrasonic atomization method has significant characteristics such as environmental protection, energy saving, low-carbon, and hygiene.

Practice has proven that ultrasonic atomization technology for metal powder is an energy-saving and environmentally friendly new technology for preparing metal powder. The outstanding advantages of ultrasonic atomization method are simple equipment structure, small volume, and even the absence of moving parts. High reliability, easy sealing and maintenance, especially suitable for research units, process testing, small-scale multi batch fine production fields, and high-power ultrasound can also have a large output.