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

["Tesla list" <tesla@xxxxxxxxxx>]

---------- Forwarded message ----------
Date: Sat, 16 Jun 2007 19:53:27 -0700 (PDT)
From: Brett Miller <brmtesla2@xxxxxxxxx>
To: Tesla list <tesla@xxxxxxxxxx>
Subject: RE: JB Weld as a glue for IGBT heat sinks... (fwd)

Mark,

Thanks.  I may use JB Weld on my FeCl home etched
segments, just because right now the testing is going
on with no heat sinks at all (mainly because I can't
find any heat sink mounting hardware in my junk box
right now.

I have heat sink compound (designed for CPUs) in my
lab now, so all I need is the clips (I want to do it
right with the nice 4 segment board).  

-Brett


--- Tesla list <tesla@xxxxxxxxxx> wrote:

> 
> ---------- 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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