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--------------------------------------------------------- Monday 8 /18/97 9 :2
In message <3.0.32.19970811203822.009b0e50@mail.telis.org>, Bob Blick writes:
>I have done smd soldering in a full-size oven. Prepare your board with the
>paste and the parts. put a cast-iron frying pan upside down in your oven
>and set to 425 degrees fahrenheit(if your oven adjusts in celcius, you'll
>have to get a different oven<g>). Let the oven and frying pan preheat and
>stabilize. When you think it's all warmed up, put the board on the frying
>pan(the pan stays upside down, it's just a heat mass) and close up the
>oven. Remove the board in three minutes, let cool for a few minutes before
>washing.
>
>I use Kester paste with water soluble flux. I've had excellent results, and
>have even soldered 0.50 mm pitch 160 pin QFPs.
>
>One word of advice: less paste is better than too much.
>
>Why use the bottom of the fry pan? I don't like the taste of electronics in
>my food!
>
>Cheerful regards,
>
>Bob
>
>At 10:22 AM 8/12/97 +1000, you wrote:
>>Hi,
>>
>>I've had this crazy idea bouncing around in my head that it may be
>>possible to solder SMD devices using one of the small lighter fluid
>>gas soldering irons that have a hot air attachment.
>>
>>I would plan to use this method for producing prototype boards only.
>>Solder paste would be placed on the pads, then left to cure for about
>>an hour at 45 degrees C, then the hot air from the blow torch would be
>>applied to each component in turn.
>>
>>Has anybody tried this. and if so how successful is it?
>>
>>My other option is to construct a reflow oven, using a fan-forced
>>convection oven (toaster oven). I've heard the thermal characteristics
>>are close enough to  provide very acceptable results.
>>
>>Regards,
>>
>>Peter.
>>--
>>_______________________________________________________________________
>>Peter Homann   email: peterh@adacel.com.au       Work : +61 3 9596-2991
>>Adacel Pty Ltd                                   Fax  : +61 3 9596-2960
>>250 Bay St, Brighton 3186, VIC, AUSTRALIA      Mobile :     014 025-925
>>
>>
>
>http://www.bobblick.com/