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CO-SOLVENT SYSTEM COMPLETELY ELIMINATES REJECTS
Microsolve system rescues company from PCB emergency
 Gai-Tronics had a potentially damaging quality problem solved by the installation of a Kerry Microsolve solvent cleaning system. Based in Burton-upon-Trent, Gai-Tronics manufactures ruggedised telephones for use in arduous or hazardous environments around the world.
Flux residues on the telephone circuit boards prior to conformal coating left them prey to corrosion. Given the particularly harsh weather conditions in which these devices must operate, this deterioration could have caused the telephones to fail. After installing a Microsolve co-solvent machine, Gai-Tronics was able
to remove all traces of flux from their boards and completely eliminate rejects.
The Microsolve 350 co-solvent cleaning system uses a blend of hydrocarbon and hydrofluoroether (HFE) in the initial ultrasonic cleaning stage and pure HFE in the subsequent ultrasonic and vapour rinse stages. The final stage involves freeboard drying through solvent evaporation, aided by refrigerated cooling coils. Gai-Tronics found this to be the only method to guarantee removal of all no-clean fluxes and associated white residues. The whole process is automated with Kerry's Autotrans Mk4 Robotic Transporter which maximises throughput and helps to reduce solvent losses.
Finished components are subjected to strict corrosion tests in the form of weathering evaluations. The results of these assessments were so positive that every PCB Gai-Tronics manufactures is now put through the
co-solvent system.
Demonstrated cleanliness levels and low running costs ultimately led to the Microsolve system being chosen ahead of those of alternative cleaning manufacturers. Gai-Tronics' desire to minimise solvent loss, both for environmental and health and safety reasons, was another key factor behind the company choosing the Microsolve machine.
(Story first issued December 2001)
Free component trials
Whether your interest is in blast, wash or ultrasonic cleaning equipment, we offer FREE component trials, with no obligation to buy. To contact Guyson International, call on +44 (0)1756 799911, fax +44 (0)1756 790213, or email info@guyson.co.uk.
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