The Desoldering process, obviously, is the opposite proccess of soldering. We need desoldering in order to change defective components, other use is to correct construction errors, we can also redo wiring jobs, and to salvage parts. One widely used method of de-soldering makes use pre-fluxed copper braid to absorb molten solder by means of capillary action. The de-soldering braid, or wicking, goes by a variety of brand names and is easy to use.
What we do is that braid is simply placed in the molten solder, and then we see that capillary action draws the excess solder up into the braid. The used piece of braid is then cut off and disposed off. While working with smaller solder joints, the action is process is often improved by way of sandwiching the braid between the soldering iron tip and the joint that is to be desoldered.
There are many people who prefer to make use a vacuum desoldering tool. Desoldering is done by “cocking” the tool: by holding the tip close to the joint needed to be de-soldered, melting with a soldering iron, and then pressing the trigger on the tool. The continuous suction action sucks the excess solder up into a holding chamber, from where it can be easily removed later. This tool being used is normally called a solder sucker.
If you have a plan of performing a lot of de-soldering (e.g. for salvage purposes), you might tend to make investment in a dedicated de-soldering station. This station contains a dedicated vacuum pump and an especially designed soldering iron that have a hollow tip. The molten solder is sucked up through the hollow tip of the iron and held in a filtered container for removal. When you desire suction action, it can be triggered by a foot or knee pedal. But a drawback is that, these dedicated de-soldering stations are very expensive to purchase. Make sure that you can justify the cost before investing in one, that is, the benefits you are going to derive must exceed from the costs that you pay for it.
0 comments:
Post a Comment