desolder with hot air

[splitcrete]

I ordered a hot air station,and was just wondering if it is very hard to desolder a 50 pin IC I am very good with the iron but never hot air soldered.

[Kiriakos GR]

Re: desolder with hot air

The best that you can do is to train your self over a dead motherboard.
I am now in this path too, with a very powerful station at hand.

Lesson number 1 : if you over do it with the heat a five layers motherboard could start looking as balloon in the point that you where aiming at.

[newtothis]

Re: desolder with hot air

Hot air does take some practice believe me.... As Kiriakos said you can turn a board into a balloon! I killed many boards before getting the hang of it I can tell you.

Get plenty of broken cheap boards and practice removing different components, Make sure you have the right nozzle for the job you are doing and don't go putting the temp to 480 just because it doesn't seem like its working, pre warm the board first on a low setting, bring it up a bit then settle at the point the solder will become molten. Use a tiny bit of solder on top of an IC and when it becomes soft you know you are nearing the temp you need.

Most is just practice... I can actually remove a BGA, reball and flow with just hot air now (good flux is a must though)

Have fun and good luck

[splitcrete]

Re: desolder with hot air

Thanks every one 97 to go lol

[Kiriakos GR]

Re: desolder with hot air

Hours or months ?

[newtothis]

Re: desolder with hot air

Oh... Make sure you have some Kapton Tape.

[SamJohns]

Re: desolder with hot air

check this out. This is what I use for removing smd parts. Make the job a lot easier.

there is a video showing how it works.


http://www.zeph.com/lowmelt.htm


LOWMELT® DE-SOLDER WIRE

Remove SMD's At Temps Under 150°C:

[dj_ricoh]

Re: desolder with hot air

if you wanna desolder from a multi layer board you need to use a preheater

[newtothis]

Re: desolder with hot air

You can preheat with the station, takes a while though