Electronics Forum | Tue Sep 09 09:02:39 EDT 2008 | floydf
We are quoting a job that has about 30 50 pin D connectors on one side of the board, and about 10 on the other side. Barring any stroke of genius, we would wave solder one side, and hand solder the other side. Does anyone have any suggestions on how
Electronics Forum | Tue Sep 09 09:33:40 EDT 2008 | dphilbrick
Only with selective solding. Those would be too tall to do a second wave.
Electronics Forum | Tue Sep 09 10:36:35 EDT 2008 | davef
We'd use a hot air gun like a Leister [800-700-6894 http://www.hotairtools.com/products.htm] hot air soldering tool with a nozzle for your connector. We have no relationship, nor receive benefit from the company referenced above.
Electronics Forum | Tue Sep 09 10:52:03 EDT 2008 | leemeyer
If the connectors can withstand reflow temperatures you might consider solder preforms. I have personally never tried them. I beleive that you can get them in any configuration desired. Indium and Alpha are some suppliers that I am aware of.
Electronics Forum | Thu Sep 11 03:42:40 EDT 2008 | muarty
Again, if the connectors can stand reflow temperatures you have the option of intrusive reflow (pin in paste)where you print paste over the holes for one of the connectors. I have did this before on a slightly different type of connector. Works prett
Electronics Forum | Tue Jul 30 12:19:38 EDT 2002 | sueph
I am trying to get a profile on a thru-hole board with metalic coating on both sides. My preheaters are about maxed out and my profile is just reaching 200 degeres F. I'm not sure how much I can slow my conveyor down to get more heat. Does any one h
Electronics Forum | Tue Jul 30 17:45:56 EDT 2002 | davef
What's this 'metalic coating on both sides'? Is that like a 'two-sided board'? I expect that your 200�F is the primary side temperature just prior to entering the wave. If not, you need more juice [depending on your flux and all that]. [Some mode
Electronics Forum | Wed Jul 31 17:25:39 EDT 2002 | sueph
Dave, thanks for the reply. These boards have metal plating covering 99 percent of both primary and secondary surfaces. The only places without the metal plating are the extreme outer edges and about an 1/8 inch surrounding the plated holes. We do
Electronics Forum | Wed Jul 31 17:57:11 EDT 2002 | davef
Foam fluxer, ouch!! That hurts. How about this? * Make a sheet metal box to cover your preheaters. [If your boss is really cheap, make a 'box' with 1/2" chicken wire and cover it with aluminum foil.] * Prebake the blank out of the boards, bag the
Electronics Forum | Thu Aug 01 10:09:31 EDT 2002 | sueph
Dave, I would have never thought of the sheet metal box. My west coast contact, who has dealt with this type of board before, told me yesterday to go ahead and try it at this profile anyway, as the metal plating holds more heat. I was pleasantly
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