Hi my company use a Miele IR6002 to wash the PCB and we are seeing watermarks on PCBs, this is made more visual where the majority of the board is plated.
So ….
Are you using washable flux?
... and what @hammy said!
What are you washing it with ?
That washer looks similar to the washer we had in my company. We uses DEIONIZED hot water to wash all boards. The water was recycled over and over through the deionizing system and fresh water from the local water was only added to keep the level up. We did not have that problem.
Further thoughts: In addition, after the washer's drying cycle, we used compressed air to blow all water off the boards. Also blew under all SMT devices on the board. The compressed air can generate static charges, so the air was neutralized electrically at the nozzle.
Hi. Yes we use no clean flux that can be washed off.
The chemistry we us is MIX3 NO217 with Activator AT700.2030
The chemistry we us is MIX3 NO217 with Activator AT700.2030
This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.