RE: JB Weld as a glue for IGBT heat sinks... (fwd)

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 16 Jun 2007 16:36:00 -0500
From: Mark R Dunn <teslamark@xxxxxxxxxxxxx>
To: 'Tesla list' <tesla@xxxxxxxxxx>
Subject: RE: JB Weld as a glue for IGBT heat sinks... (fwd)


Brett:

Terry used the adhesive in some of the preliminary testing.  Be careful what
you use - you want a high thermal conductive material to pass the heat from
the IGBT into the heat sink.  If you insulate the IGBT from the heat sink
you will not be happy.  Except for the initial tests, I think we all have
been using the Aavid MaxClip 07 to hold the IGBT in place with heat sink
compound between the IGBT and Clip.  The only pain is you must drill the
heat sink at the correct location, but I put a sketch on my SISG website
last year that shows that drilling.  The max clips have a minimum order
which is a pain but I can send you some.  Let me know off list.

Mark


>---------- Forwarded message ----------
>Date: Sat, 16 Jun 2007 08:53:21 -0700 (PDT)
>From: Brett Miller <brmtesla2@xxxxxxxxx>
>To: tesla@xxxxxxxxxx
>Subject: JB Weld as a glue for IGBT heat sinks...

>Mark, and all SISG coil builders...

>I read in some of Terry's SISG posts from last year
>that he had considered using JB Weld to glue the small
>heat sinks to the IGBTs.  Later, I know you guys
>settled on Arctic Seal 5 adhesive since it was
>designed for that duty.

>Nevertheless, it would be nice and convenient if I
>could just run to my corner ACE and pick up JB Weld. 
>Has anyone tried JB Weld on IGBTs and found it to have
>low enough thermal impedance properties?

>I'm not trying to generate a big thread (where I end
>up having to delete hundreds of irrelevant emails
>which sport my original "now obsolete" subject
>heading)...I just want to ask the 3 or 4 people who
>have built SISG coils.  Thanks.

>-Brett


 
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