In the manufacturing of precision tubing, ring-shaped components, irregularly shaped metal parts, and optoelectronic components, external curved surface indium coating is a core process to ensure the thermal conductivity, electrical conductivity, and sealing performance of products. Traditional external diameter indium coating processes often rely on manual scraping or ordinary flat indium coating equipment, which commonly suffers from poor surface adhesion, uneven coating thickness, easy peeling, and limited substrate compatibility, failing to meet the mass production demands for high-precision coating of tubing and ring-shaped workpieces. Addressing the specific processing pain points of external curved surface workpieces, Sonic4lab has independently developed an ultrasonic external diameter indium coating machine. Relying on mature ultrasonic physical vibration coating technology, coupled with professional and customized hardware parameters and a dedicated curved vibration structure, it is specifically designed for precision indium coating of the external surfaces of various tubing and circular workpieces, perfectly solving the industry problem of traditional equipment being unable to adapt to curved surface processing.
The equipment features a wide-range adjustable rated power of 500-2500W, covering all production needs and offering excellent adaptability. The low-to-medium power settings are suitable for fine indium coating operations on thin-walled tubes, precision optoelectronic cylindrical devices, and small ring-shaped parts, providing smooth and stable power output to effectively avoid workpiece deformation and substrate damage caused by power overload. The high-power settings offer ample and powerful performance, meeting the deep indium coating requirements of thick-walled tubes, cemented carbide workpieces, and large-sized cylindrical workpieces, ensuring full melting and tight adhesion of the indium to the substrate surface. This wide power range allows the equipment to handle precision prototyping of new products, small-batch trial production, and large-scale industrial production, adapting to various differentiated production scenarios.
The equipment adopts the industry-standard 20kHz operating frequency for precision curved surface indium coating, ensuring stable vibration and high coating fineness, perfectly suited to the arc processing characteristics of curved surfaces. Stable high-frequency vibration ensures uniform spreading and penetration of molten indium, eliminating common problems in curved surface coating such as accumulation, missed coating, and thickness deviations. The equipment also supports customized frequency services, allowing for personalized frequency parameter adjustments based on customer workpiece size, material hardness, and coating process requirements. This breaks the limitations of fixed parameters in conventional equipment and meets the needs of high-end customized indium coating production on outer diameters.
Precise temperature and amplitude control form the foundation for high-precision indium coating quality. The equipment is equipped with a wide-range precise temperature control system (150-400℃), ensuring uniform heating and accurate temperature control, covering the melting threshold of various indium materials. A low-temperature mode is suitable for high-temperature-sensitive precision ITO and aluminum substrates, preventing high-temperature damage to workpiece performance; a high-temperature mode rapidly melts indium, improving coating adhesion and suitable for machining hard metal outer diameter workpieces. Combined with a 3-15μm adjustable working amplitude, small amplitude achieves ultra-thin, uniform coatings, while large amplitude enhances coating density, precisely adapting to the high-precision coating standards of various outer diameter workpieces.
The equipment features a custom-designed 50*30mm vibration head with a unique arc-fitting design to the inner diameter of the tube, a core hardware advantage for outer diameter indium coating. Compared to ordinary planar vibratory heads, which cannot conform to curved surfaces and have numerous coating dead zones, this equipment's vibratory head can perfectly conform to the outer curvature of various pipes, providing full coverage without blind spots. This ensures a smooth, ripple-free, and unspecified indium layer on the outer surface, with coating adhesion far exceeding traditional processes, making it resistant to peeling and flaking even after long-term use.
Regarding power supply, the equipment adopts a standard industrial 220V±10%, 50/60Hz, 8A power supply configuration, compatible with the power supply environments of most factories and workshops in China. No circuit modifications or dedicated power distribution equipment are required, making installation convenient and maintenance simple, effectively reducing enterprise equipment investment and deployment costs. Furthermore, the equipment boasts extremely high material compatibility, capable of processing a wide range of metallic and non-metallic materials such as ITO glass, aluminum, molybdenum, copper, and indium, covering mainstream workpiece materials in industries such as optoelectronics, semiconductors, new energy, and precision hardware, demonstrating exceptional versatility.
Sonic4lab Ultrasonic External Diameter Indium Coating Machine, with its wide power range, customizable frequency, precise temperature and amplitude control, exclusive arc-shaped vibrating head, and multi-material compatibility, completely solves the pain points of traditional external diameter indium coating processes, such as low precision, poor adhesion, and material limitations. The equipment boasts stable performance, controllable quality, and wide applicability, making it the preferred choice for precision indium coating of various round, tubular, and annular workpieces, helping companies improve quality, reduce costs, and increase efficiency in curved surface indium coating processes.
