Subject: | |
From: | |
Reply To: | TechNet E-Mail Forum. |
Date: | Mon, 14 Sep 1998 04:24:12 -0700 |
Content-Type: | text/plain |
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Can he not have the boards pre-routed except for tabs to the panel, then
mask the tabs before coating? Sounds too simple...you guys probably already
thunk of that.
Ralph Vaughan
> ----------
> From: Graham Naisbitt[SMTP:[log in to unmask]]
> Reply To: TechNet E-Mail Forum.;Graham Naisbitt
> Sent: Friday, September 11, 1998 11:11 AM
> To: [log in to unmask]
> Subject: [TN] Routing conformal coatings
>
> Hi TechNetters,
>
> I hope you can help. We have a customer who needs to route (de-panellise)
> his assemblies after Conformal coating. The coating is an acrylic.
>
> The problem is that when he does this routing operation, the coating (not
> surprisingly) goes into a state of partial melt so that the coating is
> stringing on the underside making a problem for clean-up which is costly.
>
> He cannot route from the other side. He has tried chilling the assembly
> but this is impractical because of the time constraints. He cannot
> selectively NOT coat the affected area because his selective coating
> system then takes too long for the operation.
>
> Does anyone have any suggestions?
>
> Regards, Graham Naisbitt
>
> [log in to unmask]
>
> Concoat Ltd Phone: +44 1276 691100
> Alasan House Fax: +44 1276 691227
> Albany Park
> CAMBERLEY
> GU15 2PL UK
>
> Any opinions expressed are those of this employer.
>
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