Does Electrovert have any larger size nozzles??

Mark Austin

===== Original Message from [log in to unmask] (TechNet E-Mail Forum.) at
16/06/99 15:59
>Greetings, Technet!
>
>  I have more growing pains. Two weeks ago, we replaced our old stone-age
>Hollis Wave solder machine with a new Electrovert. The old machine had an
>air-stone/foam/bubble/"Lawrence Welk" type flux applicator. The new machine
>has a nitrogen-pressurized/tank-type/reciprocating/"Al Capone" style flux
>sprayer. (The Electrovert "Supa-Flux") Our problem is that we are not
>getting good solder fillets on the top side of our assemblies. It is as if
>the flux is not getting up into the holes of the boards. If the machine
>operator manually squirts the top side of the boards with a spray bottle as
>the go into the machine, we get good wetting and quality joints, likt we
>used to get with the air stone.
>    We are using a low-solid "no clean" flux (Alpha SLS 65, the same type as
>before with the old machine), we are spraying at maximum pressure (50 psi),
>at minimum spray head traversing speed (11 ips). I believe that we are
>putting as much flux onto the boards as the spray head can deliver.
>   Is this a flux viscosity issue, or a spray head issue or something else?
>What can I do short of handing everybody a squirt gun to flux the board
>tops?
>
>BTW- We decided to keep the new solder pot hot all the time. Thanks for all
>your input on this matter.
>
>Regards,
>
>Neil Maloney
>Service Technician
>Contemporary Controls
>http://www.ccontrol.com
>
>[log in to unmask]
>
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