Ultrasonic Spray System for Flux Brazing Processes
SelectaFlux is ideal for spraying brazing and welding fluxes onto targeted areas for applications such as fittings, fins, baffles, pipe joints, radiators, heat exchangers, oil coolers, evaporators and condensers. Replaces wasteful paste, dip and pressure spray processes with non-clogging ultrasonic spray. Provides excellent uniform flux coverage while eliminating clogging. Compatible with selected zinc/aluminum suspensions, flux brazing solutions, Paint-F-Flux and some qualified Nocolok suspended fluxes used in brazing/welding.
SelectaFlux System Benefits:
- Easily retrofits onto existing lines
- Self-cleaning ultrasonic nozzle – no clogging
- Very low overspray means little waste
- Wide range of delivery rates from 0.1-2 gph
- Spray pattern adjustable from 0.070 -1.50 inches
- Ideal for targeted area coverage
- For suspended and solution fluxes containing binders
- No overspray means no waste
Complete SelectaFlux Flux Brazing System Includes:
- Control Module
- Broadband generator
- Electrical inputs and outputs
- Digital display for nozzle power and liquid delivery pressure
- Optional liquid delivery pressure reservoir stirrer
- Panel-mounted nozzle power
- Flow rate and air pressure adjustments
- Air shroud pressure control
Optional: SelectaFlux Dual Retrofit control module is available to control 2 nozzles from one control box.
SelectaFlux Brazing System Operating Principle:
The SelectaFlux Flux Brazing and Welding system is a complete, ready-to-integrate selective fluxing system. It combines Sono-Tek’s patented AccuMist ultrasonic atomizing nozzle with low-pressure air to produce a controlled, diverging beam of spray. A separate control module handles input/output system functions,making it easy to retrofit onto existing lines.
The ultrasonic vibrations not only produce repeatable atomization of the flux but also prevent any solids buildup within the nozzle or at the tip. Compressed air, typically at 1 psi, is introduced into the diffusion chamber of the air shroud, which produces a uniformly distributed flow of air around the nozzle stem.
The ultrasonically produced spray at the tip of the stem is immediately entrained in the air stream.
The spray envelope is bow-shaped. The width of the bow is controlled by adjusting the nozzle’s distance to the substrate. The distance between nozzle and substrate can be varied from near-contact to approximately two inches.