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Re: Chinese-made reflow soldering ovens

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krw@notreal.com writes:

> On Mon, 09 Oct 2017 19:06:58 GMT, Jan Panteltje
> <pNaOnStPeAlMtje@yahoo.com> wrote:
>
>>On a sunny day (Mon, 9 Oct 2017 14:00:18 -0400) it happened bitrex
>><bitrex@de.lete.earthlink.net> wrote in <SOOCB.1038$y63.553@fx14.iad>:
>>
>>>On 10/08/2017 04:45 PM, pcdhobbs@gmail.com wrote:
>>>> On Sunday, October 8, 2017 at 4:41:07 PM UTC-4, Dave M wrote:
>>>>> Anyone have any experience or have colleagues who have experience using the
>>>>> Chinese-made reflow soldering ovens such as those being sold on the evil
>>>>> auction place?  The one I've looked at is item number:262955348183 (Model
>>>>> T962).
>>>>>
>>>>> My eyes have become the major challenge to producing the one- or two-off
>>>>> projects, since many of the parts that are available today are only made in
>>>>> SMD packages.   I realize that placing them onto the board still remains a
>>>>> challenge, but at least with a proper oven, I won't have to hold a soldering
>>>>> iron steady enough to build the boards.
>>>>>
>>>>> This model seems to be big enough to handle all the boards that I want to
>>>>> make, so that is a plus.  Just wondering if this model produces good boards
>>>>> with no unsoldered areas, damaged components, etc.  If it can consistently
>>>>> produce good boards, I'll take a chance on one of them.  Reading the
>>>>> Chinglish instructions is scary enough , but maybe I can figure it out well
>>>>> enough to make it work.
>>>>>
>>>>> Hope someone can give good advice
>>>>>
>>>>> Dave M
>>>> 
>>>> I use a piece of half-inch aluminum jig plate on top of an old-timey Corning ceramic hot plate, the kind used in chem labs.
>>>> 
>>>> Works great and takes up a lot less space than an oven.
>>>> 
>>>> Cheers
>>>> 
>>>> Phil Hobbs
>>>> 
>>>
>>>How hot do you have to get a SOIC generally before worrying about 
>>>physically damaging the package/die/bond wires etc?
>>>
>>>I've used a regular heat gun on a low setting to do "reflow" from time 
>>>to time in a pinch, moving it around quickly so as not to concentrate 
>>>the air blast in any one place for too long; it's always a bit of an 
>>>anxiety-producing experience but as far as I can tell I've never had a 
>>>part obviously fail because of it
>>
>>I have seen a youtube video of a Chinese workshop that replaced memory chips in iphones
>>for bigger ones with a heat gun... While U wait..
>
> That's how we replace parts with center pads.  The trick is
> controlling the hot air so adjacent parts don't go flying.

I have done this with a "wall" made from bent copper foil I have around
(for some reason that escapes me).

For ~$2k you can get a rework station complete with these

http://www.jbctools.com/extractors-desoldering-system-product-554-category-9-menu-1.html


-- 

John Devereux

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Thread

Chinese-made reflow soldering ovens "Dave M" <dgminala@mediacombb.net> - 2017-10-08 15:40 -0500
  Re: Chinese-made reflow soldering ovens pcdhobbs@gmail.com - 2017-10-08 13:45 -0700
    Re: Chinese-made reflow soldering ovens Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-10-08 23:52 +0100
    Re: Chinese-made reflow soldering ovens Don Kuenz <g@crcomp.net> - 2017-10-08 23:18 +0000
      Re: Chinese-made reflow soldering ovens Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-10-08 16:34 -0700
      Re: Chinese-made reflow soldering ovens pcdhobbs@gmail.com - 2017-10-09 13:05 -0700
    Re: Chinese-made reflow soldering ovens bitrex <bitrex@de.lete.earthlink.net> - 2017-10-09 14:00 -0400
      Re: Chinese-made reflow soldering ovens Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-09 19:06 +0000
        Re: Chinese-made reflow soldering ovens bitrex <bitrex@de.lete.earthlink.net> - 2017-10-09 15:47 -0400
        Re: Chinese-made reflow soldering ovens krw@notreal.com - 2017-10-09 21:28 -0400
          Re: Chinese-made reflow soldering ovens John Devereux <john@devereux.me.uk> - 2017-10-10 08:00 +0100
            Re: Chinese-made reflow soldering ovens krw@notreal.com - 2017-10-10 21:42 -0400
      Re: Chinese-made reflow soldering ovens Jon Elson <jmelson@wustl.edu> - 2017-10-09 14:16 -0500
      Re: Chinese-made reflow soldering ovens Jan Panteltje <pNaOnStPeAlMtje@yahoo.com> - 2017-10-10 11:07 +0000
        Re: Chinese-made reflow soldering ovens aioe usenet <hirni47@yahoo.com> - 2017-10-12 05:00 +0700
  Re: Chinese-made reflow soldering ovens Jeff Liebermann <jeffl@cruzio.com> - 2017-10-08 14:17 -0700
  Re: Chinese-made reflow soldering ovens Gerhard Hoffmann <gerhard@hoffmann-hochfrequenz.de> - 2017-10-08 23:26 +0200
  Re: Chinese-made reflow soldering ovens Neon John <no@never.com> - 2017-10-08 17:54 -0400
    Re: Chinese-made reflow soldering ovens bitrex <bitrex@de.lete.earthlink.net> - 2017-10-09 14:17 -0400
      Re: Chinese-made reflow soldering ovens krw@notreal.com - 2017-10-09 21:35 -0400
  Re: Chinese-made reflow soldering ovens Jeff Liebermann <jeffl@cruzio.com> - 2017-10-08 15:37 -0700
  Re: Chinese-made reflow soldering ovens John Larkin <jjlarkin@highlandtechnology.com> - 2017-10-08 15:44 -0700
    Re: Chinese-made reflow soldering ovens Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-10-08 16:01 -0700
      Re: Chinese-made reflow soldering ovens John Larkin <jjlarkin@highlandtechnology.com> - 2017-10-08 16:45 -0700
        Re: Chinese-made reflow soldering ovens Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-10-08 16:49 -0700
  Re: Chinese-made reflow soldering ovens Joe Chisolm <jchisolm6@earthlink.net> - 2017-10-09 11:41 -0500
  Re: Chinese-made reflow soldering ovens Jon Elson <jmelson@wustl.edu> - 2017-10-09 14:13 -0500
  Re: Chinese-made reflow soldering ovens speff <spehro@gmail.com> - 2017-10-12 00:32 -0700

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