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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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Tweakers' Asylum Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ. |
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In Reply to: Help with soldering methods...Please. posted by Dan on March 25, 2000 at 20:12:12:
I have Been using both braid and solder extractors for years. I was Mil certified for flight hardware soldering. Nothing Wrong with Braid. Solder Sucker can infact be of more Danger. Most of them do not allow you to change Tip sizes or Heating range. and If you can not affored a Weller or Neutric Extraction system I would stick with braid.PCB can be made Cheap. It is up to manufacture if he wants to cut corners and use very thin copper or tin clad boards with poor laminates. this compounds itself when you start machining thin traces and plated through holes for Pads. Tin can wick into your solder joint. The traces and pads can lift easy with heat or they can tear. initial cleaning and pre tinning is a must. you need to have a very fast heat transfer. Start by using a clean surface, clean off all old flux and solder. be carefull! you might even want to consider using extra flux. Not only does it clean it provides fast heat exchange like a cooking oil. When you are ready to solder, Dab solder on tip of Iron and wipe it off with wet sponge. this will clean the tip. Place a small amount of fresh solder on tip of Iron. Initialy focus most of the heat of the Iron on the Component lead feed it solder and drift it towards the pad at the intersection point and to allow it to flow into PAD. DO NOT LEAVE HEAT ON PAD FOR ANY LENGTH OF TIME AND DO NOT MOVE IRON ON PAD OR TRACE. Once it looks like Pad is filled lift up Iron. Do not let component move while solder is still hot. this will resort in a cold solder joint and will look dull and non shiny (also wicking other metals into solder gives same look) Soldering is an art and takes practice
It can get real nit picky. Just like with all welds but for most applications this above will work.
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Follow Ups
- Re: Help with soldering methods...Please. - jerry l 18:03:21 03/26/00 (0)
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