April/May, 2024 Continued from previous page


only makes sense if the process parameters are proportional to the result and random effects are suppressed. With such a system, one can


thoroughly clean under complex packages and not compromise the chemical compatibility of other components, inscriptions or materials on the board. Also, without tools, the user


can swap the nozzle system on the shop floor in under three min- utes. This substantially increases the flexibility of the system. The HyperSWASH is a flex-


ible system. It can run at small or large facilities, with different deionized water sources and con- ditions for draining waste. Depending on the facility condi- tions, the machine can run fully closed, semi-open loop or with flow-through cascade rinsing. These configurations can be


changed by using the software and with some minor modifica- tions to sensors. The system has two independent rinsing steps, provided by mechanical chemical filters and sump tanks with heating and pumps. Cascading also increases the quality of rins- ing at higher capacities.


Other Features Since all process steps run


in the same chamber, limiting drag-over between steps is important. The system is equip - ped with a robust air knife. The air knife is fully programmable and can be initiated anywhere in the process.


Air temperature is program-


mable from room temperature to 230°F (110°C). Water is primari- ly blown out at drying and only minor water residue evaporates. This saves time and also removes the possibility of stains. The machine’s glass doors


may seem to be simply an eye catcher, but seeing all the details during the process design phase is essential. Delays for dripping, chemical insulation and drying times can be quickly and efficient- ly programmed by observation. The door glass is safe, sealed, hardened, and ESD-compliant.


Control System and Automation


The balance between flux


residue, fresh cleaner, water qual- ity, and evaporation can change from assembly to assembly. It is risky to rely on refilling the pre- mixed cleaner by level only. It is also risky to not know the satura- tion grade of that cleaner. Laboratory analyses are


precise, but are too slow to catch any dramatic changes in the wash sump tank. Similarly, the recirculating and reclaiming of deionized water cannot only be monitored by conductivity, but also by the content of non-ionic


SAFE www.weller-tools.com/wxsmart


TOTAL PROCESS CONTROL


www.weller-tools.com/wxsmart See at IPC APEX, Booth 4045 CONTROL


Apex Tool Group, LLC 1000 Lufkin Road Apex, NC 27539 Tel: +1 919 387 0099 Fax: +1 866 907 9706 ©2022, Apex Tool Group LLC


www.us-tech.com The Key to Precise Inline PCB Cleaning


compounds from cleaner and non-polar residues. The HyperSWASH can


include sensors for measuring sat- uration and organic compounds in the rinse water. PBT Works has confirmed by experiments that the non-ionic impurities in rinse water have a negative impact not only on the surface tension, but also on surface insulation resist- ance. This after standard mois- ture tests according to IPC 9202. The system also offers powerful data management. All process data are registered and can be graphically compared.


Finally, the system can be


delivered with automatic loading and unloading of workpieces. The doors are automatically operated and a pallet with frames or baskets drives to the cart locked to the machine. The cart can be easily moved to other workplaces using an AGV. Contact: PBT Works s.r.o.,


Clamping frame for direct spray.


Lesní 2331, 756 61 Rožnov pod radhoštem, Czechia % +420-572-153-111 E-mail: info@pbt-works.com Web: www.pbt-works.com r


See at IPC APEX, Booth 2338


Page 53


CONNECTING THE FUTURE OF SOLDERING CONNECT SMART


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