Rex,

  But isn't the down side of too little flux really bad? I am thinking
opens?

 I think the real issue here is about cleaning after hand re-work. For that
I don't have much of an answer. 

For a lab environment I played with one of those water jets used for teeth
cleaning. On the occasional rework you fill the plastic container with
distilled water, 45 seconds in the microwave, place container in holder, and
then you get a good jet of hot distilled water to clean under parts.

 Yes, a total hack but it works better than ... not cleaning at all! But
this does means folk are reworking with water soluble which is a very risky
idea from the start. But if you want cosmetically appealing hand rework I
don't know of other ideas.  

So "Let them have Flux" but clean well.

Bob K.

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Rex Hansatech
Sent: Friday, September 20, 2013 9:41 AM
To: [log in to unmask]
Subject: Re: [TN] Liquid Flux dispensing

We banned flux bottles due to the frequent over fluxing that resulted. The
level of skill required to prevent surplus flux was too great to risk it. We
now only use pens. 
Regards
Rex

Sent by me on my iPhone. 


On 20 Sep 2013, at 16:23, Craig Sullivan <[log in to unmask]> wrote:

> This is an elementary question, but we do a fair bit of hand soldering 
> in some of our assemblies. We use flux bottles with needle nozzles in 
> order to dispense the flux on the board. I'd like to control how much 
> flux is dispensed. I know training is paramount, but in my effort to 
> give the operators tools to do their job more effectively, can anyone 
> point me to items to look at? I know about flux pens and we do use 
> them as well, but was just wondering what others might be using.
> 
> 
> 
> Craig Sullivan
> 
> Manufacturing Engineer
> 
> MPL Incorporated
> 
> P: 607.266.0480 x115
> 
> F: 607.266.0482
> 
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