Ultrasonic Metal Atomization Equipment

Introduction:

In applications that require very precise diameter dimensions (such as welding powder commonly used for manufacturing solder paste), ultrasonic nozzles are very suitable. 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 atomization surface of the nozzle make them impractical in production environments. These issues have been overcome through the use of dual air/liquid cooling and a simple, replaceable atomization surface design. This proprietary cooling method can maintain the thermosensitive piezoelectric sensor of the nozzle within a safe temperature range even when atomizing molten liquids. For corrosive liquids, nozzles made of titanium alloy materials completely overcome this problem.

Principle:

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

When the molten metal liquid passes through the atomization surface, it is broken into uniform micron sized droplets of fine mist, achieving atomization. After atomization, micrometer sized liquid droplets are thrown out of the atomization surface under the action of rotational centrifugal force and standing waves. They quickly solidify when cooled by 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 micrometer sized droplets and fine mist can be accurately controlled, thereby accurately controlling the size of metal powder.

Advantages:

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

2. The equipment and process are simple, easy to operate, and the product quality is stable and controllable.

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

4. The ultrasonic atomization method has significant characteristics such as environmental protection, energy conservation, low-carbon, and hygiene.

Practice has proven that ultrasonic atomization technology for metal powder is a new type of energy-saving and environmentally friendly metal powder preparation technology. 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 experiments, small-scale multi batch fine production fields, and high-power ultrasound can also have a large output.