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| And now.......how NOT to solder ! |
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| Level42:
This one came up on www.dragonslairfans.com and I watched it with amazement: Great video because it clearly shows you how NOT to solder ! WAAAAAY too long heating (esp after he removes the tin, bubbling WTF ?!?!?!) plus way too much solder ! "You can see this is a nice strong joint" well no because he created a bubble instead of a Fuji. The funny thing is that he _had_ a good soldering if he'd removed the tin and the iron exactly at 1.14-1.15. You can see it "popping" into a Fuji there but he goes on and add and add solder which is totally useless and in fact bad and after that he keeps "baking" the solder.... Amateur. |
| SavannahLion:
"boiling off the impurities" What impurities? Is he referring to the rosin or something on the pcb itself? And what's that gold thing to the left of his cradle? At the end of the vidoe. |
| Finchbyrd:
Yeah don't do that. Solder will hold just fine unless you're swinging it around over your head by the wires. Generally stuff that's soldered is kept in one place so I don't know why he tried to make a pool for it to sit in lol. |
| Beretta:
i think so, ya i agree guys cooking it. does look like he's using a lot of solder although the board he's working on has large traces and so in some cases thats ok. but ya he's a little to happy with the iron.. you only need just a quick touch. i try to use as little as possible.. neater job, to much solder can get you into trouble.. saves money too. nice iron he's got though.. i just use a 15 watt from radio shack.. works fine. now desoldering i hate.. i have destroyed traces that way if you put to much heat for to long they'll lift right off the board, usually without warning.. PITA to fix and the desoldering braid radio shacks sells now days SUCKS donkey kong balls. |
| MaximRecoil:
--- Quote from: SavannahLion on August 31, 2009, 02:19:34 am ---"boiling off the impurities" What impurities? Is he referring to the rosin or something on the pcb itself? --- End quote --- Yeah, that's the flux boiling off; not "impurities". I don't know where he came up with such a notion, probably something he made up himself. The heat from the iron can boil the flux (which is sometimes rosin, but not always) and burn it black. He's probably seeing these black particles of burnt flux rising to the surface and he thinks they are impurities boiling off. By keeping the iron on the joint for so long, he's actually creating the "impurities" that he's trying to get rid of; not to mention he is risking damage to the component and pad. We soldered about 65 to 75 joints per minute at the PCB factory I worked at. You don't need to have the iron on the joint for ~30 seconds like he did; in fact; that is highly not recommended. He would have been reprimanded for such foolishness (not to mention time wasting) where I worked, probably by me (I trained new hires to solder there). Also, his touching of the solder wire to the tip of his iron first, "just to start the heat conduction", was unnecessary, a waste of time, and didn't even make sense (the heat conduction started as soon as his iron contacted the pad and post). His poking and prodding around with the solder wire was also bad form, and again, a waste of time (the solder should be pushed into the joint in a single, quick, straight, smooth motion). This guy is probably self-taught and shouldn't be trying to teach others to solder. There is nothing inherently wrong with being self-taught; as long as you taught yourself correctly; which he clearly didn't. |
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