Pi Catheter TPU Coating Process

Pi catheter TPU ultrasonic spraying process | Precision catheter uniform coating technology solution

In the field of precision catheter manufacturing, the surface coating process directly determines the performance, safety and durability of products. For the TPU coating spraying requirements of Pi catheters, the ultrasonic spraying process has become an efficient and precise processing solution to replace traditional spraying with the core advantages of precise atomization, uniform coating and low material loss, which is widely suitable for the surface modification production of medical and industrial precision catheters.

The ultrasonic spraying machine relies on the principle of high-frequency ultrasonic vibration. The piezoelectric transducer generates high-frequency vibration of 20-150kHz to atomize the liquid TPU solution into uniform micron-level fine droplets. Different from the traditional two-fluid spraying, this process adopts physical vibration atomization without high-pressure airflow shearing, solving the problems of uneven coating thickness, material splashing and serious raw material waste, and greatly improving material utilization rate.

Adapted to the slender and finely curved base material characteristics of Pi catheters, the spraying system supports catheter rotation and axial uniform movement. It can adjust spraying distance, atomization frequency and operating speed in real time, enabling TPU droplets to evenly adhere to the catheter surface and form a controllable, adhesive, dense and flat protective coating. The whole low-temperature spraying and curing process will not damage the structural and mechanical properties of Pi catheter substrates.

Pi catheters processed by this technology feature highly consistent TPU coatings without pinholes and sagging. The optimized coating improves surface smoothness, reduces friction resistance, and enhances aging resistance and permeability resistance, meeting the mass production and R&D needs of high-precision and high-stability precision catheters.

About Cheersonic

Cheersonic is the leading developer and manufacturer of ultrasonic coating systems for applying precise, thin film coatings to protect, strengthen or smooth surfaces on parts and components for the microelectronics/electronics, alternative energy, medical and industrial markets, including specialized glass applications in construction and automotive.

Our coating solutions are environmentally-friendly, efficient and highly reliable, and enable dramatic reductions in overspray, savings in raw material, water and energy usage and provide improved process repeatability, transfer efficiency, high uniformity and reduced emissions.

If you have any technical questions, customization demands, or procurement inquiries about ultrasonic atomization nozzles, feel free to contact our professional sales and technical team for detailed parameters, customized solutions, and industry application support.
Email: market2@cheersonic.com