Chat Log:
Mike Konrad
Hi everyone!
Pierpaolo
Hi Mike!
Mike Konrad
Good morning/afternoon/evening
Doug
Good morning Mike.
Michael
Good Morning!!
Linda
Good morning
Mike Konrad
Thanks for joining!
Becky
Becky McGaw from EPTAC Corp.
Mike Konrad
:thumbsup:
Mike Konrad
Hi Becky!
Mike Konrad
Looks like more tan 50% of you clean 100% of your assemblies!
Doug
We clean about 2.5-3 feet/min, but did a lot of work to optimize that.
Glenn
Doug - what solder paste typr?
Admin
Doug... Yes, It can be done with good optimization
Doug
All low solids fluxes.
Glenn
Impressive...
Admin
Doug, What is the length of your machine?
Doug
Aquastorm 200s, so about 30 feet
Doug
We also have some smaller in-lines, about 18 feet running similar parameters
Mike Konrad
:thumbsup:
Doug
The Electrovert 100ci
Mike Konrad
Good machine!
Doug
Agreed
Glenn
any mods to the aquastorm?
Doug
Not that I could say.
Glenn
roger that
Doug
Generally we put in very powerful blower motors to dry the boards, usually stronger than you would get from the stock configuration.
Mike Konrad
That makes sense.
Glenn
good point, but actually considering time required in wash to solubize contaminants
Gabriele
:thumbsup:
Mike Konrad
50% of you clean 100% of no-clean assemblies
Alex
Mike, your presentation slides are very effective. Pictures and video clips helps me to understand much better of what you describe.
Gabriele
sei indietro di un fuso orario ecco perchè
Linda
Can I get a copy of Mike’s presentation
Mike Konrad
Linda, This will be available on-demand later today
Mike Konrad
Alex, Thanks!
Linda
Thank you
Pierpaolo
For those who clean 100% of no-clean fluxess, is it a business choice or does it depend on the types of products developed (eg Aerospace)?
Doug
We are aerospace and I would say we clean 98-99% of product. We do have a few no-clean products.
Doug
We clean because as Mike says, when you clean, you clean everything. Gets the Sins of the Father, so to speak.
Doug
To go from cleaning to no-clean is a massive massive effort.
Gabriele
Yes, by washing we can remove FODs and al technical durtines not only Ionic contents in case they are there...
Mike Konrad
There is an advantage using no-clean fluxes as they are the most popular type of flux and are both highly engineered and supported. I can't remember the last water soluble flux that was released. Most of the product improvements are no-clean.
Pierpaolo
Interesting.......not all the electronic components have clear statements from Manufacturers that they can be washed....often it's at our own risk.....
Axel
Reson why "no-clean" (low residue flux vehicle) built assemblies are cleaned in some products is due to the expected reliability of the end product.
Mike Konrad
FOD (foreign object debris) is a real issue with frequency disoration and other non-ECM issues.
Mike Konrad
Axel, Agreed! End-use environment is also a major consideration.
Glenn
Mike - do you find recent no clean flux systems to be harder to clean?
Doug
Axel, no argument, but for us, a bigger issue is that we would have to change our entire culture, along with implementing controls at our upstream suppliers. Both daunting tasks.
Mike Konrad
They used to be much harder to clean. Cleaning equipment and chemicals have made great strides. Today, I would say they are still more difficult but not by that much. The current challenges are bottom terminated components (BTC's).
Mike Konrad
Doug, Changing company culture is like moving mountains!
Mike Konrad
Agreed
Axel
No-clean residues are indeed more challenging than before. The change is the lessons learned and the continuous improvement over the cleaning application (equipment, cleaning agent, and process settings/capabilities)
Mike Konrad
:thumbsup:
Gabriele
and creepage clearance to...
Mike Konrad
:thumbsup:
Axel
nothing short of being a nightmare if we try cleaning a common no-clean flux residue with an older chemistry/equipment nowadays
Mike Konrad
Axel... Totally agree!
Axel
assembly manufacturability is other influencing factor
Axel
BTCs!!!
Mike Konrad
Axel... QFN’s!
Doug
Become an SIR Wizard and you will never be lonely.....
Axel
LOL!
Mike Konrad
SIR Wizzard! A new song by The Who!
Elliott
Just remember that SIR is DEscriptive, not PREscriptive! Every materials & process choice can influence your SIR result!
Samuel
:thumbsup:
Joel
:thumbsup:
Antonio
:thumbsup:
Sergio
yes
Aaron
yup
Chuck
Yes
Linda
:thumbsup:
Axel
:thumbsup:
Steve
good to go!
Viktor
yes
Aaron
they need to change that name
Gabriele
Many Thakns Gents. Regards..Gabriele
Pierpaolo
Ciao Gabriele! Alla prossima!
Gabriele
Ciao Pier.
Joel
Is there data showing the impact of waiting to clean a no-clean flux (i.e. 4 hrs, 8 hrs, 24 hrs, 1 week, 6 months)
Doug
To get a better understanding of the J-STD-001 requirements, attend the IPC meetings in Milwaukee in August and the Cleaning and Coating Conference in Dallas in October.
Doug
Joel, I think that depends on the chemical and the process.
Michael
What about cleaning for embedded components, what are the current standards?
Gabriele
Resin or Rosin flux residue beave different.
Doug
Of course
Axel
I’ve done studies on cards soldered 2 years prior to wash operation. results have been similar to recently soldered. This is based on eutectic ROL0 pastes and fluxes
Joel
WOW!!
Gabriele
Kind of media ?
Axel
media?
Alex
Thank you!!
Axel
process, inline and batch cleaners
Joel
Thank you!!
Antonio
Thank you!
Gabriele
washing sgrnt
Axel
Kyzen and Zestron products mainly
Doug
Nice webinar, thanks.
Steve
Thank you, Gentlemen!
Arthur
Thank you Gentlemen !!
Axel
thanks for the webinar. Ill see you in October
Pierpaolo
Thank you Gentlemen!
Nick
thank you gentlemen